91 results on '"Kong YG"'
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2. CENPN suppresses autophagy and increases paclitaxel resistance in nasopharyngeal carcinoma cells by inhibiting the CREB-VAMP8 signaling axis.
- Author
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Wang BR, Han JB, Jiang Y, Xu S, Yang R, Kong YG, Tao ZZ, Hua QQ, Zou Y, and Chen SM
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- Animals, Mice, Humans, Nasopharyngeal Carcinoma genetics, Nasopharyngeal Carcinoma metabolism, Mice, Nude, Autophagy genetics, Cell Line, Tumor, RNA, Small Interfering pharmacology, R-SNARE Proteins metabolism, Cell Proliferation genetics, Gene Expression Regulation, Neoplastic, Chromosomal Proteins, Non-Histone genetics, Chromosomal Proteins, Non-Histone metabolism, Chromosomal Proteins, Non-Histone pharmacology, Paclitaxel pharmacology, Paclitaxel therapeutic use, Nasopharyngeal Neoplasms drug therapy, Nasopharyngeal Neoplasms genetics, Nasopharyngeal Neoplasms metabolism
- Abstract
Chemotherapeutic resistance is one of the most common reasons for poor prognosis of patients with nasopharyngeal carcinoma (NPC). We found that CENPN can promote the growth, proliferation and apoptosis resistance of NPC cells, but its relationship with chemotherapeutic resistance in NPC is unclear. Here we verified that the CENPN expression level in NPC patients was positively correlated with the degree of paclitaxel (PTX) resistance and a poor prognosis through analysis of clinical cases. VAMP8 expression was significantly increased after knockdown of CENPN by transcriptome sequencing. We found in cell experiments that CENPN inhibited macroautophagy/autophagy and VAMP8 expression and significantly increased PTX resistance. Overexpression of CENPN reduced the inhibitory effects of PTX on survival, cell proliferation, cell cycle progression and apoptosis resistance in NPC cells by inhibiting autophagy. In turn, knockdown of CENPN can affect the phenotype of NPC cells by increasing autophagy to achieve PTX sensitization. Sequential knockdown of CENPN and VAMP8 reversed the PTX-sensitizing effect of CENPN knockdown alone. Experiments in nude mice confirmed that knockdown of CENPN can increase VAMP8 expression, enhance autophagy and increase the sensitivity of NPC cells to PTX. Mechanistic studies showed that CENPN inhibited the translocation of p-CREB into the nucleus of NPC cells, resulting in the decreased binding of p-CREB to the VAMP8 promoter, thereby inhibiting the transcription of VAMP8 . These results demonstrate that CENPN may be a marker for predicting chemotherapeutic efficacy and a potential target for inducing chemosensitization to agents such as PTX. Abbreviations: 3-MA: 3-methyladenine; ATG5: autophagy related 5; CENPN: centromere protein N; CQ: chloroquine; CREB: cAMP responsive element binding protein; ChIP: chromatin immunoprecipitation assay; IC50: half-maximal inhibitory concentration; LAMP2A: lysosomal associated membrane protein 2A; MAP1LC3/LC3: microtubule associated protein 1 light chain 3; NPC: nasopharyngeal carcinoma; NPG: nasopharyngitis; oe CENPN : overexpressed CENPN ; PTX: paclitaxel; RAPA: rapamycin; RNA-seq: transcriptome sequencing; sh CENPN : small hairpin RNA expression vector targeting the human CENPN gene; sh CENPN -sh VAMP8 : sequential knockdown targeting the human CENPN gene and VAMP8 gene; sh VAMP8 : small hairpin RNA expression vector targeting the human VAMP8 gene; TEM: transmission electron microscopy; TIR: tumor inhibitory rate; VAMP8: vesicle associated membrane protein 8.
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- 2024
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3. Association of Dietary Polyunsaturated Fatty Acid Intake with Allergic Rhinitis in Adults: A Cross-Sectional Study of NHANES 2005-2006.
- Author
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Jiao WE, Xi Y, Li D, Xu S, Kong YG, Deng YQ, Yang R, Tao ZZ, Hua QQ, and Chen SM
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- Adult, Pregnancy, Female, Adolescent, Humans, Child, Cross-Sectional Studies, Nutrition Surveys, Diet, Fatty Acids, Unsaturated, Rhinitis, Allergic, Seasonal, Rhinitis, Allergic epidemiology
- Abstract
Introduction: The incidence of allergic rhinitis (AR) is increasing year by year, and the pathogenesis is complex, in which diet may play an important role. The role of polyunsaturated fatty acids (PUFAs) in AR is still controversial. Previous studies have looked at the effects of PUFA during pregnancy, childhood, and adolescence. In this study, we aimed to determine the association between dietary intake of PUFA and AR in adults., Methods: We used the NHANES database from 2005 to 2006 to include a total of 4,211 adult subjects. We collected dietary PUFA intake data and information on AR. Logistic regression and restricted cubic spline models were constructed to examine the association between PUFA intake and AR in adults. The t test was used to compare daily PUFA intakes in patients with and without AR., Results: In the fully adjusted model (OR: 1.016; 95% CI: 1.003; 1.028), PUFA intake was positively correlated with allergic symptoms, hay fever, and AR in adults (p < 0.05). In addition, daily PUFA intake was significantly higher in people with allergic symptoms, hay fever, and AR than in people without the disease (p < 0.01)., Conclusions: Our results suggest a positive association between dietary PUFA intake and AR in adults to a certain extent. Future studies on dietary PUFA dose will provide new strategies for the prevention and treatment of allergic diseases such as AR related to non-pharmaceutical interventions., (© 2023 S. Karger AG, Basel.)
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- 2024
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4. Chart-Derived Frailty Index and 90-Day Mortality After Burn Surgery.
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Yu J, Kong YG, Park JY, Kim HY, Kwon M, Han YJ, Lee N, Seo YJ, and Kim YK
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- Humans, Retrospective Studies, Critical Care, Morbidity, Frailty diagnosis, Pneumonia epidemiology, Pneumonia etiology
- Abstract
Introduction: Frailty is a reduced physiological reserve condition associated with postoperative morbidity and mortality. The chart-derived frailty index (CFI) can measure frailty using demographic and laboratory values. We evaluated the association of preoperative CFI with 90-d mortality after burn surgery., Methods: This large retrospective study included burn intensive care unit (ICU) patients between 2012 and 2021 and calculated CFI using the sum of the following five variables: age >70 y, body mass index <18.5 kg/m
2 , hematocrit <35%, albumin <3.4 g/dL, and creatinine >2.0 mg/dL; high CFI was a score of 3-5. Postoperative 90-d mortality rate, major adverse cardiac events (MACE), pneumonia, continuous renal replacement therapy (CRRT) requirement, and prolonged ICU stay (>60 d) were evaluated., Results: Of 1118 patients, 147 (13.1%) had high CFI. High CFI patients had a higher 90-d mortality rate than did low CFI patients (38.8% versus 22.6%, P < 0.001). A high CFI was significantly associated with postoperative 90-d mortality (hazard ratio = 4.124, 95% confidence interval = 2.980-5.707, P < 0.001) in multivariate Cox regression analysis. Kaplan-Meier analysis revealed significantly different postoperative 90-d mortality rates between patients with high and low CFIs (log-rank test, P < 0.001). Incidences of postoperative MACE, pneumonia, the need for CRRT, and prolonged ICU stay were significantly higher in patients with high CFIs than in those with low CFIs., Conclusions: Preoperative high CFI was associated with increased 90-d mortality, MACE, pneumonia, CRRT requirement, and ICU stay following burn surgery., (Copyright © 2023 Elsevier Inc. All rights reserved.)- Published
- 2024
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5. Enhancing nasopharyngeal carcinoma cell radiosensitivity by suppressing AKT/mTOR via CENP-N knockdown.
- Author
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Wu LZ, Zou Y, Wang BR, Ni HF, Kong YG, Hua QQ, and Chen SM
- Subjects
- Humans, Nasopharyngeal Carcinoma genetics, Nasopharyngeal Carcinoma radiotherapy, Cell Line, Tumor, Radiation Tolerance genetics, TOR Serine-Threonine Kinases, Cell Proliferation radiation effects, Apoptosis genetics, Proto-Oncogene Proteins c-akt metabolism, Nasopharyngeal Neoplasms genetics, Nasopharyngeal Neoplasms radiotherapy
- Abstract
Objective: Investigating the impact of centromere protein N (CENP-N) on radiosensitivity of nasopharyngeal carcinoma (NPC) cells., Methods: Using immunohistochemistry and immunofluorescence to detect CENP-N expression in tissues from 35 patients with radiosensitive or radioresistant NPC. Assessing the effect of combined CENP-N knockdown and radiotherapy on various cellular processes by CCK-8, colony formation, flow cytometry, and Western blotting. Establishing a NPC xenograft model. When the tumor volume reached 100 mm
3 , a irradiation dose of 6 Gy was given, and the effects of the combined treatment were evaluated in vivo using immunofluorescence and Western blotting techniques., Results: The level of CENP-N was significantly reduced in radiosensitive tissues of NPC (p < 0.05). Knockdown of CENP-N enhanced NPC radiosensitivity, resulting in sensitizing enhancement ratios (SER) of 1.44 (5-8 F) and 1.16 (CNE-2Z). The combined treatment showed significantly higher levels of proliferation suppression, apoptosis, and G2/M phase arrest (p < 0.01) compared to either CENP-N knockdown alone or radiotherapy alone. The combined treatment group showed the highest increase in Bax and γH2AX protein levels, whereas the protein Cyclin D1 exhibited the greatest decrease (p < 0.01). However, the above changes were reversed after treatment with AKT activator SC79. In vivo, the mean volume and weight of tumors in the radiotherapy group were 182 ± 54 mm3 and 0.16 ± 0.03 g. The mean tumor volume and weight in the combined treatment group were 84 ± 42 mm3 and 0.04 ± 0.01 g., Conclusion: Knockdown of CENP-N can enhance NPC radiosensitivity by inhibiting AKT/mTOR., (© 2023. The Author(s).)- Published
- 2023
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6. Calpeptin may reverse glucocorticoid-resistance of allergic rhinitis associated with cigarette smoke exposure by down-regulating interferon regulatory factor 1.
- Author
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Zhu WX, Xi Y, Li F, Jiao WE, Li ZJ, Chen SM, Kong YG, Xu Y, Deng YQ, Zuo JJ, and Tao ZZ
- Abstract
Cigarette smoke exposure is an important factor in chronic inflammation in patients with allergic rhinitis (AR); however, the relationship between cigarette smoke and AR-related glucocorticoid resistance requires further study. In mice, calpeptin significantly reduces inflammation of the lower respiratory tract caused by cigarette smoke, but whether it can treat glucocorticoid-resistant AR caused by cigarette smoke requires further research. In this study, we confirmed that cigarette smoke exposure can aggravate the Th2 inflammatory response in AR leading to glucocorticoid resistance. The underlying mechanism may be related to decreased expression of DNA methyltransferase 3a (Dnmt3a), and increased expression of interferon regulatory factor 1 (IRF1). In addition, we found that calpeptin can inhibit the expression of IRF1 and thus treat AR-associated glucocorticoid resistance in rats exposed to cigarette smoke. These data suggest that calpeptin may downregulate IRF1 and therefore treat glucocorticoid resistance in AR-associated with cigarette smoke exposure., Competing Interests: The authors have no conflicts of interest to declare., (© 2023 Published by Elsevier Ltd.)
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- 2023
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7. Differentiation of eosinophilic and non-eosinophilic chronic rhinosinusitis on preoperative computed tomography using deep learning.
- Author
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Hua HL, Li S, Xu Y, Chen SM, Kong YG, Yang R, Deng YQ, and Tao ZZ
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- Humans, Tomography, X-Ray Computed, Tomography, Eosinophilia, Rhinitis diagnostic imaging, Rhinitis surgery, Deep Learning, Sinusitis diagnostic imaging, Sinusitis surgery
- Abstract
Objectives: This study aimed to develop deep learning (DL) models for differentiating between eosinophilic chronic rhinosinusitis (ECRS) and non-ECRS (NECRS) on preoperative CT., Design: Axial spiral CT images were pre-processed and used to build the dataset. Two semantic segmentation models based on U-net and Deeplabv3 were trained to segment the sinus area on CT images. All patient images were segmented using the better-performing segmentation model and used for training and testing of the transferred efficientnet_b0, resnet50, inception_resnet_v2, and Xception neural networks. Additionally, we evaluated the performances of the models trained using each image and each patient as a unit., Participants: A total of 878 chronic rhinosinusitis (CRS) patients undergoing nasal endoscopic surgery at Renmin Hospital of Wuhan University (Hubei, China) between October 2016 to June 2021 were included., Main Outcome Measures: The precision of each model was assessed based on the receiver operating characteristic curve. Further, we analyzed the confusion matrix and accuracy of each model., Results: The Dice coefficients of U-net and Deeplabv3 were 0.953 and 0.961, respectively. The average area under the curve and mean accuracy values of the four networks were 0.848 and 0.762 for models trained using a single image as a unit, while the corresponding values for models trained using each patient as a unit were 0.893 and 0.853, respectively., Conclusions: Combining semantic segmentation with classification networks could effectively distinguish between patients with ECRS and those with NECRS based on preoperative sinus CT images. Furthermore, labeling each patient to build a dataset for classification may be more reliable than labeling each medical image., (© 2022 John Wiley & Sons Ltd.)
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- 2023
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8. Fasting Plasma Glucose and Glycohemoglobin with Allergic Symptoms and Specific Sensitization: Results from NHANES 2005-2006.
- Author
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Lu G, Deng YQ, Xi Y, Li S, Chen SM, Kong YG, Xu Y, Li F, and Tao ZZ
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- Animals, Rats, Glycated Hemoglobin, Nutrition Surveys, Fasting, Blood Glucose, Diabetes Mellitus
- Abstract
Objective: The National Health and Nutrition Examination Survey (NHANES) data has been used to study the relationship between fasting plasma glucose (FPG) and glycohemoglobin (A1c) in patients with allergic symptoms and specific sensitization, respectively., Methods: A total of 1,687 participants and a variety of logistic regression models were selected based on the 2005-2006 NHANES (n = 10,348) for our study to describe the relationship between FPG and A1c in subjects with the sensitivity of allergic symptoms, specific sensitization and specific sensitization of 19 allergens, respectively. On this basis, a variety of logistic regression models were further established for hierarchical analysis to study the limiting conditions when FPG and A1c were related to allergic symptoms., Results: We adjusted the confounding factors and found that the risk of specific sensitization increased with the increase in FPG and A1c. Stratified analysis showed that the risk of allergic symptoms increased with the increase in FPG and A1c when born elsewhere other than in the U.S. and Mexico or underweight or overweight or with hypertension. Furthermore, we found that the risk of egg sensitization increased with the increase in FPG and A1c, while the risk of rat sensitization decreased with the increase in FPG., Conclusion: Under certain conditions, FPG and A1c were risk factors for allergic symptoms. FPG and A1c were risk factors for specific sensitization, especially egg sensitization. These findings indicate a possible link between diabetes and allergies., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2023
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9. Giant Cell Tumor and Giant Cell Reparative Granuloma of Bone of the Head: CT and MR Imaging Findings.
- Author
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Li SL, Kong YG, Zou Y, Yu X, Ouyang HQ, Chen SM, and Deng YQ
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- Humans, Retrospective Studies, Magnetic Resonance Imaging, Tomography, X-Ray Computed, Giant Cells metabolism, Giant Cells pathology, Bone Neoplasms diagnostic imaging, Giant Cell Tumors, Granuloma, Giant Cell diagnostic imaging, Granuloma, Giant Cell metabolism
- Abstract
Background: This study aimed to determine the features and differentiation of Giant Cell Reparative Granuloma (GCRG) and Giant Cell Tumor (GCT) of the head on CT and MRI., Methods: This retrospective study included six patients with histopathology-confirmed head GCRG and 5 patients with histopathology-confirmed head GCT. All images were independently reviewed by two radiologists. The growth pattern, bone changes, MRI signal intensity, enhancement patterns and other image features were recorded. All patients received CT scans and MR images., Results: All the lesions were located centrally in the bone. Osteolytic bone destruction and expansive growth patterns were observed on CT images. Four of six cases broke the cortical bone with residual cortical bone, and the last two showed a thin cortex in GCRG. Five cases broke the cortical bone with residual cortical bone in GCT. There were enhancing septations in GCT lesions on contrast- enhanced T1-Weighted Images (T1WI) while enhancing septations were not present in GCRG cases. The size of GCT lesions was larger than that of GRCG. GCRG and GCT showed iso-low signals on T1WI and iso-high signals on T2-Weighted Images (T2WI). There was a case with cystic or necrotic lesions in each of the two types of lesions. Osteolytic bone destruction and expansive growth patterns were observed in GCTs and GCRGs., Conclusion: The size of the GRCG lesion was smaller than that of the GCT. The presence of enhancing septations and the size of the lesion may distinguish GCTs from GCRG., (Copyright© Bentham Science Publishers; For any queries, please email at epub@benthamscience.net.)
- Published
- 2023
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10. Notch2-dependent GATA3+ Treg cells alleviate allergic rhinitis by suppressing the Th2 cell response.
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Jiao WE, Xu S, Qiao YL, Kong YG, Sun L, Deng YQ, Yang R, Tao ZZ, Hua QQ, and Chen SM
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- Mice, Animals, T-Lymphocytes, Regulatory, Disease Models, Animal, Immunoglobulin E, Allergens, Th17 Cells, Mice, Inbred BALB C, GATA3 Transcription Factor genetics, GATA3 Transcription Factor metabolism, Th2 Cells, Rhinitis, Allergic
- Abstract
The aim of this study was to investigate the role and mechanism of Notch2-dependent GATA3+ Treg cells in allergic rhinitis (AR). Samples were collected from patients in the control and AR groups to detect differences in the numbers of GATA3+ Treg cells and their intracellular Notch2 levels. The effects of Notch2 on GATA3+ Treg cell differentiation and function in vitro were detected. AR mice were subjected to adoptive transfer of GATA3+ Treg cells to detect changes in the allergic inflammatory response and Th2 cells. Mice with Treg cell-specific knockout of Notch2 were constructed, and an AR model was established to detect the changes. The number of GATA3+ Treg cells and intracellular Notch2 expression in peripheral blood of the AR group were decreased compared with the controls (P < 0.05), and the number of GATA3+ Treg cells was significantly negatively correlated with the level of allergen-specific IgE (sIgE; P < 0.01). In vitro experiments showed that Notch2 promoted the differentiation and immunosuppressive function of GATA3+ Treg cells, and Notch2 directly promoted GATA3 transcription in Treg cells (P < 0.05). Animal experiments indicated that adoptive transfer of GATA3+ Treg cells reduced the allergic inflammatory response in AR mice (P < 0.05). The number of GATA3+ Treg cells was decreased in gene knockout mice (P < 0.05), and autoimmune inflammation was observed. After modeling, the allergic inflammatory response was further aggravated (P < 0.05). Overall, our findings indicate that Notch2 alleviates AR by specifically increasing GATA3+ Treg cell differentiation. Notch2 expressed in Treg cells is expected to be a new therapeutic target for AR., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2022
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11. Allergen immunotherapy enhances the immunosuppressive effects of Treg cells to alleviate allergic rhinitis by decreasing PU-1+ Treg cell numbers.
- Author
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Qiao YL, Jiao WE, Xu S, Kong YG, Deng YQ, Yang R, Hua QQ, and Chen SM
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- Humans, Cell Count, Cytokines, Immunoglobulin E, Interleukin-10, Interleukin-17, Interleukin-2, Interleukin-4, Interleukin-5, Interleukin-6, T-Box Domain Proteins, Tumor Necrosis Factor-alpha, Desensitization, Immunologic, Rhinitis, Allergic therapy, T-Lymphocytes, Regulatory
- Abstract
Objective: To investigate the role of Tregs and their subtypes in the treatment of allergic rhinitis with allergen immunotherapy (AIT) as well as the underlying mechanism., Methods: 1. Thirty-one healthy controls, 29 Allergic rhinitis (AR) patients and 16 AR patients treated with AIT were recruited. The total nasal symptom scores (TNSSs) were calculated. The serum levels of IgE, IL-2, TNF-α, IFN-γ, IL-4, IL-5, IL-6, IL-10 and IL-17 were measured. 2. Changes in the proportions of CD4+ T cells, Treg cells, Treg subtypes and Th1/Th2/Th9/Th17/Tfh cells in the peripheral blood of the subjects in the three groups were measured. 3. The correlations of Treg cells, Treg subtypes and TNSS with the levels of various cytokines in the AR group and AIT group were analysed., Results: 1. Compared with the control group, the TNSS and IgE, IL-5 and IL-6 levels in the AR group were significantly increased, while the IL-2, IFN-γ and IL-10 levels were significantly decreased (P < 0.05). Compared with the AR group, the TNSS and IgE, IL-5 and IL-6 levels in the AIT group were significantly decreased, while the IL-2, IFN-γ and IL-10 levels were significantly increased (P < 0.05). 2. Compared with the control group, the proportions of Tregs, GATA3+ Tregs and Th1 cells in the AR group were significantly reduced, while the proportions of PU-1+ Tregs, T-bet+ Tregs and Th2 cells were significantly increased (P < 0.05). Compared with the AR group, the proportions of Tregs and Th1 cells in the AIT group were significantly increased, while the proportions of PU-1+ Tregs and Th2 cells were decreased (P < 0.05). 3. Correlation analysis showed that Treg cell proportions were negatively correlated with the TNSS, sIgE levels, IL-5 levels and IL-6 levels but positively correlated with the IL-2 and IL-10 levels (P < 0.05). PU-1+ Treg cell proportions were positively correlated with the TNSS, sIgE levels, IL-5 levels and IL-6 levels but negatively correlated with the Treg cell proportions, IL-2 levels and IL-10 levels (P < 0.05)., Conclusions: AIT can reduce the proportions of PU-1+ Treg subtypes in AR patients. PU-1+ Treg cell numbers can potentially be used as an indicator to monitor the therapeutic effect of AIT on AR., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 Elsevier B.V. All rights reserved.)
- Published
- 2022
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12. Prognostic Nutritional Index and Postoperative Pulmonary Complications in Patients With Major Burns.
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Seo YJ, Yu J, Park JY, Kwak IS, Park JH, Kim HY, Song A, Kong YG, and Kim YK
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- Humans, Nutritional Status, Postoperative Complications epidemiology, Postoperative Complications etiology, Prognosis, Retrospective Studies, Risk Factors, Serum Albumin, Burns complications, Burns surgery, Nutrition Assessment
- Abstract
Introduction: Burns can cause multiple organ systemic derangements, particularly in respiratory systems. The prognostic nutritional index (PNI) can predict postoperative outcomes. We evaluated the incidence and risk factors, including PNI, for postoperative pulmonary complications (PPCs) in patients with major burns., Methods: PNI was calculated as 10 × (serum albumin level) + 0.005 × (total lymphocyte count). Major burn patients admitted to the ICU without burn-induced lung injuries were retrospectively included. The incidence of PPCs was measured within 1 wk of burn surgery. A multivariable logistic regression analysis was performed to evaluate the risk factors for PPCs. Receiver operating characteristic curve analysis and propensity-score matched analysis were conducted to estimate the influence of PNI on PPCs. Outcomes after burn surgery were also assessed., Results: Of 444 major burn patients, 138 (31.1%) showed PPCs. Risk factors for PPCs were PNI, gender, total body surface area burned, interval between burn and surgery, and red blood cell transfusion rate. The area under the curve of PNI for predicting PPCs was 0.709 (cutoff value = 31.5). The incidence of PPCs was significantly higher in the PNI ≤ 31.5 group than in the PNI > 31.5 group (55.7% versus 22.8%, P < 0.001) after propensity-score matching. The intensive care unit stay duration was longer and 90-d mortality was higher in patients who developed PPCs (19 [9-27] d versus 8 [4-17] d, P < 0.001; 11.6% versus 0.3%, P < 0.001)., Conclusions: The prevalence of PPCs in patients with major burns was 31.1% and preoperative PNI was a predictor of PPCs in these patients. PNI ≤ 31.5 was significantly related to a higher incidence of PPCs., (Copyright © 2022 Elsevier Inc. All rights reserved.)
- Published
- 2022
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13. Anatomical Partition-Based Deep Learning: An Automatic Nasopharyngeal MRI Recognition Scheme.
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Li S, Hua HL, Li F, Kong YG, Zhu ZL, Li SL, Chen XX, Deng YQ, and Tao ZZ
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- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Image Processing, Computer-Assisted methods, Magnetic Resonance Imaging methods, Male, Middle Aged, Nasopharynx diagnostic imaging, Retrospective Studies, Young Adult, Deep Learning, Nasopharyngeal Diseases
- Abstract
Background: Training deep learning (DL) models to automatically recognize diseases in nasopharyngeal MRI is a challenging task, and optimizing the performance of DL models is difficult., Purpose: To develop a method of training anatomical partition-based DL model which integrates knowledge of clinical anatomical regions in otorhinolaryngology to automatically recognize diseases in nasopharyngeal MRI., Study Type: Single-center retrospective study., Population: A total of 2485 patients with nasopharyngeal diseases (age range 14-82 years, female, 779[31.3%]) and 600 people with normal nasopharynx (age range 18-78 years, female, 281[46.8%]) were included., Sequence: 3.0 T; T2WI fast spin-echo sequence., Assessment: Full images (512 × 512) of 3085 patients constituted 100% of the dataset, 50% and 25% of which were randomly retained as two new datasets. Two new series of images (seg112 image [112 × 112] and seg224 image [224 × 224]) were automatically generated by a segmentation model. Four pretrained neural networks for nasopharyngeal diseases classification were trained under the nine datasets (full image, seg112 image, and seg224 image, each with 100% dataset, 50% dataset, and 25% dataset)., Statistical Tests: The receiver operating characteristic curve was used to evaluate the performance of the models. Analysis of variance was used to compare the performance of the models built with different datasets. Statistical significance was set at P < 0.05., Results: When the 100% dataset was used for training, the performances of the models trained with the seg112 images (average area under the curve [aAUC] 0.949 ± 0.052), seg224 images (aAUC 0.948 ± 0.053), and full images (aAUC 0.935 ± 0.053) were similar (P = 0.611). When the 25% dataset was used for training, the mean aAUC of the models that were trained with seg112 images (0.823 ± 0.116) and seg224 images (0.765 ± 0.155) was significantly higher than the models that were trained with full images (0.640 ± 0.154)., Data Conclusion: The proposed method can potentially improve the performance of the DL model for automatic recognition of diseases in nasopharyngeal MRI., Level of Evidence: 4 TECHNICAL EFFICACY STAGE: 1., (© 2022 The Authors. Journal of Magnetic Resonance Imaging published by Wiley Periodicals LLC on behalf of International Society for Magnetic Resonance in Medicine.)
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- 2022
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14. Prognostic Nutritional Index and Major Adverse Cardiac Events After Burn Surgery: A Propensity Score Matching Analysis.
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Kim HY, Yu J, Kong YG, Park JY, Shin D, Seo YJ, and Kim YK
- Subjects
- Humans, Nutritional Status, Prognosis, Propensity Score, Retrospective Studies, Risk Factors, Burns complications, Burns surgery, Nutrition Assessment
- Abstract
Burn injuries can cause significant malnutrition, leading to cardiovascular impairments. The prognostic nutritional index (PNI) predicts postoperative complications. We evaluated the impact of preoperative PNI on major adverse cardiac events (MACE) after burn surgery. PNI was calculated using the equation, 10×(serum albumin level)+0.005×(total lymphocyte count). Multivariable logistic regression analysis was conducted to evaluate the predictors for MACE at 6 months after burn surgery. Receiver operating characteristic curve and propensity score matching analyses were conducted. Additionally, Kaplan-Meier analysis was conducted to compare postoperative 1-year mortality between MACE and non-MACE groups. MACE after burn surgery occurred in 184 (17.5%) of 1049 patients. PNI, age, American Society of Anesthesiologists physical status, and TBSA burned were significantly related to MACE. The area under the receiver operating characteristic curve of PNI was 0.729 (optimal cutoff value = 35). After propensity score matching, the incidence of MACE in the PNI <35 group was higher than that in the PNI ≥35 group (20.1% vs 9.6%, P < .001). PNI <35 was related to an increased incidence of MACE (odds ratio = 2.373, 95% confidence interval = 1.499-3.757, P < .001). The postoperative 1-year mortality was higher in the MACE group than in the non-MACE group (54.9% vs 9.1%, P < .001). Preoperative PNI was a predictor for MACE after burn surgery. PNI <35 was significantly related to an increased incidence of MACE. Moreover, MACE was related to higher postoperative 1-year mortality., (© The Author(s) 2021. Published by Oxford University Press on behalf of the American Burn Association. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)
- Published
- 2022
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15. Allergen induces CD11c + dendritic cell autophagy to aggravate allergic rhinitis through promoting immune imbalance.
- Author
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He YQ, Qiao YL, Xu S, Jiao WE, Yang R, Kong YG, Tao ZZ, and Chen SM
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- Animals, Autophagy, Dendritic Cells, Disease Models, Animal, Mice, Mice, Inbred BALB C, Mice, Inbred C57BL, Ovalbumin, Allergens, Rhinitis, Allergic
- Abstract
The level of autophagy in CD11c
+ dendritic cell (DC) and its contribution to the subsequent immune imbalance are still unclear. The aim of this study was to investigate the role and mechanism of them in promoting the allergic inflammatory response. Nasal mucosa tissues were collected from allergic rhinitis (AR) mice and their control group to detect the expression of LC3II, P62 and ATG5 and CD11c+ DC autophagy. Different concentration of OVA or the combination of OVA and autophagy inhibitor (3-MA) were used to induce the differentiation of mouse bone marrow-derived DCs (CD11c+ BMDCs). Differences in LC3II, P62 and ATG5 expression and autophagosome formation were detected. BMDCs in the above groups were cocultured with spleen lymphocytes to detect the proportions of effector T cells and changes in cytokines. OVA-loaded BMDCs were injected intravenously into C57BL/6 mice to develop allergic model. The nasal mucosa of mice in the AR group showed significantly increased LC3II and ATG5 protein expression, whereas showed significantly decreased P62 protein expression. Moreover, LC3II was mainly co-expressed with CD11c+ DC markers. In vitro, OVA stimulation induced the increase of autophagosomes and the expression of autophagy-related proteins in BMDCs in a dose-dependent manner, and inhibition of autophagy showed significantly decreased LC3II and ATG5 expression and autophagosome abundance. In addition, OVA-induced BMDC autophagy can affect CD4+T cell differentiation and related cytokine levels, however, the Th1/Th2/Th9/Th17/Treg/Tfh cell immune imbalances were significantly reversed after the addition of 3-MA. Adoptive transfer of OVA-loaded BMDCs could promote the allergic inflammation, while the administration of 3-MA on OVA-loaded BMDCs could significantly reduce the AR inflammation. Overall, our findings demonstrate that allergen can induce CD11c+ DC autophagy in a dose-dependent manner and promote the immune imbalance of downstream T cells towards a proinflammatory phenotype., (Copyright © 2022 Elsevier B.V. All rights reserved.)- Published
- 2022
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16. Allergy-related outcomes and sleep-related disorders in adults: a cross-sectional study based on NHANES 2005-2006.
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Xi Y, Deng YQ, Chen SM, Kong YG, Xu Y, Li F, Jiao WE, Lu G, and Tao ZZ
- Abstract
Background: Epidemiological evidence between the sleep disorders and allergy-related outcomes is limited., Objectives: The purpose of the present study was to estimate the relationship between sleep disorders and allergy-related outcomes in adults., Methods: We built logistic regression models to examine the associations between sleep disorders and allergy-related outcomes in adult participants using the 2005-2006 NHANES database. Allergy-related outcomes included sIgE levels, asthma, hay fever, sneezing, wheezing, and eczema. Sleep disorders included sleep latency, sleep length, sleep problems, OSA symptoms, and daytime sleepiness. A t-test was used for between-group comparisons., Results: Participants with OSA symptoms had 2.72 × higher odds of experiencing hay fever and 1.54 × higher odds of having eczema compared to Non-OSA symptoms participants. Participants with insufficient sleep (≤ 6 h/night) had 1.27 × higher odds of developing allergic sensitisation compared to participants with adequate sleep (7-8 h/night). Sneezing was positively associated with sleep problems (OR: 1.706; 95% CI 1.386, 2.099), OSA symptoms (OR: 1.297; 95% CI 1.049, 1.605), and daytime sleepiness (OR: 1.569; 95% CI 1.205, 2.04)., Conclusion: Our findings suggest a positive association between allergy-related outcomes and sleep disorders. In particular, OSA symptoms, daytime sleepiness, and sleep problems are strongly associated with allergic conditions., (© 2022. The Author(s).)
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- 2022
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17. Red cell distribution width/albumin ratio and 90-day mortality after burn surgery.
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Seo YJ, Yu J, Park JY, Lee N, Lee J, Park JH, Kim HY, Kong YG, and Kim YK
- Abstract
Background: Red cell distribution width (RDW) and serum albumin concentration are associated with postoperative outcomes. However, the usefulness of the RDW/albumin ratio in burn surgery remains unclear. Therefore, we evaluated the association between RDW/albumin ratio and 90-day mortality after burn surgery., Methods: Between 2013 and 2020, a retrospective review of patients in a burn intensive care unit (ICU) was performed. Receiver operating characteristic curve, multivariate Cox logistic regression, multivariate logistic regression and Kaplan-Meier analyses were conducted to evaluate the association between RDW/albumin ratio and 90-day mortality after burn surgery. Additionally, prolonged ICU stay rate (>60 days) and ICU stay were assessed., Results: Ninety-day mortality was 22.5% (210/934) in burn patients. Risk factors for 90-day mortality were RDW/albumin ratio at postoperative day 1, age, American Society of Anesthesiologists physical status, diabetes mellitus, inhalation injury, total body surface area burned, hypotensive event and red blood cell transfusion volume. The area under the curve of the RDW/albumin ratio at postoperative day 1 to predict 90-day mortality, after adjusting for age and total body surface area burned, was 0.875 (cut-off value, 6.8). The 90-day mortality was significantly higher in patients with RDW/albumin ratio >6.8 than in those with RDW/albumin ratio ≤6.8 (49.2% vs 12.3%, p < 0.001). Prolonged ICU stay rate and ICU stay were significantly higher and longer in patients with RDW/albumin ratio >6.8 than in those with RDW/albumin ratio ≤6.8 (34.5% vs 26.5%; 21 [11-38] vs 18 [7-32] days)., Conclusion: RDW/albumin ratio >6.8 on postoperative day 1 was associated with higher 90-day mortality, higher prolonged ICU stay rate and longer ICU stay after burn surgery., (© The Author(s) 2022. Published by Oxford University Press.)
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- 2022
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18. The IRF2/CENP-N/AKT signaling axis promotes proliferation, cell cycling and apoptosis resistance in nasopharyngeal carcinoma cells by increasing aerobic glycolysis.
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Qi CL, Huang ML, Zou Y, Yang R, Jiang Y, Sheng JF, Kong YG, Tao ZZ, Feng HY, Hua QQ, Bu LH, and Chen SM
- Subjects
- Animals, Apoptosis, Cell Cycle, Cell Proliferation, Genes, Synthetic, Humans, Mice, Mice, Nude, Prognosis, Recombinant Proteins, Signal Transduction, Warburg Effect, Oncologic, Chromosomal Proteins, Non-Histone metabolism, Interferon Regulatory Factor-2 metabolism, Nasopharyngeal Neoplasms genetics, Proto-Oncogene Proteins c-akt metabolism
- Abstract
Background: Centromere protein N (CENP-N) has been reported to be highly expressed in malignancies, but its role and mechanism in nasopharyngeal carcinoma (NPC) are unknown., Methods: Abnormal CENP-N expression from NPC microarrays of GEO database was analyzed. CENP-N expression level was confirmed in NPC tissues and cell lines. Stable CENP-N knockdown and overexpression NPC cell lines were established, and transcriptome sequencing after CENP-N knockdown was performed. In vitro and in vivo experiments were performed to test the impact of CENP-N knockdown in NPC cells. ChIP and dual luciferase reporter assays were used to verify the combination of IRF2 and CENP-N. Western blot analysis, cellular immunofluorescence, immunoprecipitation and GST pulldown assays were used to verify the combination of CENP-N and AKT., Results: CENP-N was confirmed to be aberrantly highly expressed in NPC tissues and cell lines and to be associated with high
18 F-FDG uptake in cancer nests and poor patient prognosis. Transcriptome sequencing after CENP-N knockdown revealed that genes with altered expression were enriched in pathways related to glucose metabolism, cell cycle regulation. CENP-N knockdown inhibited glucose metabolism, cell proliferation, cell cycling and promoted apoptosis. IRF2 is a transcription factor for CENP-N and directly promotes CENP-N expression in NPC cells. CENP-N affects the glucose metabolism, proliferation, cell cycling and apoptosis of NPC cells in vitro and in vivo through the AKT pathway. CENP-N formed a complex with AKT in NPC cells. Both an AKT inhibitor (MK-2206) and a LDHA inhibitor (GSK2837808A) blocked the effect of CENP-N overexpression on NPC cells by promoting aerobic glycolysis, proliferation, cell cycling and apoptosis resistance., Conclusions: The IRF2/CENP-N/AKT axis promotes malignant biological behaviors in NPC cells by increasing aerobic glycolysis, and the IRF2/CENP-N/AKT signaling axis is expected to be a new target for NPC therapy., (© 2021. The Author(s).)- Published
- 2021
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19. De Ritis ratio as a predictor of 1-year mortality after burn surgery.
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Yu J, Kim HY, Kong YG, Park JH, Seo YJ, and Kim YK
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- Alanine Transaminase, Aspartate Aminotransferases, Humans, Kaplan-Meier Estimate, Prognosis, Retrospective Studies, Burns surgery
- Abstract
Background: Burn is an overwhelming injury. The De Ritis ratio, defined as aspartate aminotransferase to alanine aminotransferase ratio, can be used to predict poor outcomes. We evaluated the risk factors, including the De Ritis ratio, associated with 1-year mortality after burn surgery., Methods: Patients who underwent burn surgery from 2009 to 2019 were retrospectively evaluated. Multivariate Cox regression analysis was conducted to evaluate the risk factors for 1-year mortality after burn surgery. Receiver operating characteristic (ROC) curve analysis of the De Ritis ratio was performed to predict postoperative 1-year mortality. Kaplan-Meier survival analysis was also conducted. Other postoperative outcomes, such as durations of hospital and intensive care unit stays, acute kidney injury, and major adverse cardiac events, were evaluated., Results: One-year mortality after burn surgery occurred in 247 (19.9%) of 1244 patients. The risk factors for 1-year mortality after burn surgery were the De Ritis ratio, age, American Society of Anesthesiologists physical status, diabetes mellitus, total body surface area burned, inhalation injury, serum creatinine level, and serum albumin level. The area under the ROC curve for the De Ritis ratio was 0.716 (optimal cutoff=1.9). The 1-year mortality rate after burn surgery was significantly higher in patients with a De Ritis ratio >1.9 than in those with a De Ritis ratio ≤1.9 (35.8% vs. 11.8%, P<0.001). The survival rate was significantly higher in patients with a De Ritis ratio ≤1.9 than in those with a De Ritis ratio >1.9 (log-rank test, P<0.001). Intensive care unit stay, acute kidney injury, and major adverse cardiac events were significantly higher in patients with a De Ritis ratio >1.9 than in those with a De Ritis ratio ≤1.9 (P=0.006, P<0.001, and P<0.001, respectively)., Conclusions: The preoperative De Ritis ratio was a risk factor for 1-year mortality after burn surgery. The De Ritis ratio >1.9 was significantly associated with an increased 1-year mortality after burn surgery. These findings emphasized the importance of identifying burn patients with an increased De Ritis ratio to reduce the mortality after burn surgery., (Copyright © 2021 Elsevier Ltd and ISBI. All rights reserved.)
- Published
- 2021
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20. PLAC8 gene knockout increases the radio-sensitivity of xenograft tumors in nude mice with nasopharyngeal carcinoma by promoting apoptosis.
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Shen LJ, Qi CL, Yang R, Huang ML, Zou Y, Jiang Y, Sheng JF, Kong YG, Hua QQ, and Chen SM
- Abstract
In vitro cell experiments showed that knocking out the placenta-specific protein 8 (PLAC8) gene significantly increased the sensitivity of tumor cells to radiation. This study used two nude mouse models of nasopharyngeal carcinoma (NPC) to investigate the radio-sensitization and molecular mechanism of PLAC8 knockout in vivo . The expression of PLAC8 in 120 NPC tissues and 30 nasopharyngitis (NPG) tissues was detected by immunohistochemistry (IHC) to analyze the relationship between PLAC8 and neck lymph node metastasis and prognosis in NPC patients. The mRNA expression level of PLAC8 in several NPC cell lines was detected by semi-quantitative RT-PCR. The PLAC8 gene was knocked out in CNE-2 cells using CRISPR/Cas9. The effect of PLAC8 gene knockout on the radiotherapy sensitivity of NPC cells was analyzed by establishing model 1 and model 2 tumor-bearing nude mouse models with two different irradiation methods. The expression of γH2AX, Bax, Bcl-2, Caspase-3 and cleaved Caspase-3 was detected by immunofluorescence (IF), IHC and western blot analysis. PLAC8 expression was significantly increased in NPC tissue samples and NPC cell lines compared with NPG tissue samples and normal cell lines (P<0.01). PLAC8 upregulation was associated with lymph node metastasis and a poor prognosis in patients with NPC (P<0.01). Both animal models showed that radiotherapy after PLAC8 knockout significantly slowed tumor growth and reduced tumor volume, with tumor inhibition rates of 100% and 66.04%, respectively. In model 2, PLAC8 knockout with radiotherapy increased the expressions of γH2AX, Bax, Caspase-3 and cleaved Caspase-3 but decreased the expression of Bcl-2 (P<0.01). In model 1, there was no tumor formation at the site where the cancer cells were injected. The expression levels of γH2AX, Bax, Caspase-3 and cleaved Caspase-3 in skin tissues taken at the injection site were lower than those in NPC tissues treated with radiotherapy, while the expression level of Bcl-2 was higher (P<0.01). PLAC8 expression is closely related to neck metastasis and the prognosis of NPC. PLAC8 gene knockout significantly increases the radio-sensitivity of NPC cells in vivo by promoting apoptosis, which is an effective strategy for the radiotherapy sensitization of NPC., Competing Interests: None., (AJTR Copyright © 2021.)
- Published
- 2021
21. The prognostic nutritional index on postoperative day one is associated with one-year mortality after burn surgery in elderly patients.
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Seo YJ, Kong YG, Yu J, Park JH, Kim SJ, Kim HY, and Kim YK
- Abstract
Background: Burn injury in elderly patients can result in poor outcomes. Prognostic nutritional index (PNI) can predict the perioperative nutritional status and postoperative outcomes. We aim to evaluate the risk factors, including PNI, for one-year mortality after burn surgery in elderly patients., Methods: Burn patients aged ≥65 years were retrospectively included. PNI was calculated using the following equation: 10 × serum albumin level (g/dL) + 0.005 × total lymphocyte count (per mm
3 ). Cox regression, receiver operating characteristic curve and Kaplan-Meier survival analyses were performed to evaluate the risk factors for postoperative one-year mortality., Results: Postoperative one-year mortality occurred in 71 (37.6%) of the 189 elderly burn patients. Risk factors for one-year mortality were PNI on postoperative day one (hazard ratio (HR) = 0.872; 95% CI = 0.812-0.936; p < 0.001), Sequential Organ Failure Assessment score (HR = 1.112; 95% CI = 1.005-1.230; p = 0.040), American Society of Anesthesiologists physical status (HR = 2.064; 95% CI = 1.211-3.517; p = 0.008), total body surface area burned (HR = 1.017; 95% CI = 1.003-1.032; p = 0.015) and preoperative serum creatinine level (HR = 1.386; 95% CI = 1.058-1.816; p = 0.018). The area under the curve of PNI for predicting one-year mortality after burn surgery was 0.774 (optimal cut-off value = 25.5). Patients with PNI ≤25.5 had a significantly lower one-year survival rate than those with PNI >25.5 (32.1% vs 75.9%, p < 0.001)., Conclusions: PNI on postoperative day one was associated with postoperative one-year mortality in elderly burn patients. The postoperative one-year survival rate was lower in patients with PNI ≤25.5 than in those with PNI >25.5. These findings indicate the importance of identifying elderly burn patients with low PNI, thereby reducing the mortality after burn surgery., (© The Author(s) 2021. Published by Oxford University Press.)- Published
- 2021
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22. The Issue of Recurrently Positive Patients Who Recovered From COVID-19 According to the Current Discharge Criteria: Investigation of Patients from Multiple Medical Institutions in Wuhan, China.
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Zou Y, Wang BR, Sun L, Xu S, Kong YG, Shen LJ, Liang GT, and Chen SM
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- Adult, Aged, Aged, 80 and over, Antibodies, Viral blood, COVID-19 diagnosis, COVID-19 epidemiology, COVID-19 virology, COVID-19 Nucleic Acid Testing methods, COVID-19 Testing methods, China epidemiology, Clinical Laboratory Techniques methods, Female, Humans, Male, Middle Aged, Retrospective Studies, SARS-CoV-2 isolation & purification, Serologic Tests, Young Adult, COVID-19 therapy, Patient Discharge
- Abstract
The current discharge criteria for COVID-19 require that patients have 2 consecutive negative results for reverse transcription polymerase chain reaction (RT-PCR) detection. Here, we observed that recurrent positive RT-PCR test results in patients with 3 consecutive negative results (5.4%) were significantly decreased compared with those in patients with 2 consecutive negative results (20.6%); such patients reported positive RT-PCR test results within 1 to 12 days after meeting the discharge criteria. These results confirmed that many recovered patients could show a positive RT-PCR test result, and most of these patients could be identified by an additional RT-PCR test prior to discharge., (© The Author(s) 2020. Published by Oxford University Press for the Infectious Diseases Society of America. All rights reserved. For permissions, e-mail: journals.permissions@oup.com.)
- Published
- 2020
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23. Comparison of a Significant Decline in the Glomerular Filtration Rate between Ileal Conduit and Ileal Neobladder Urinary Diversions after Radical Cystectomy: A Propensity Score-Matched Analysis.
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Yu J, Hong B, Park JY, Lee Y, Hwang JH, Kong YG, and Kim YK
- Abstract
Urinary diversion after radical cystectomy is associated with a risk of renal function impairment. A significant decline in the glomerular filtration rate (GFR) (i.e., a ≥30% decline in baseline GFR after 12 months) is associated with long-term renal function impairment. We compared the significant GFR decline between ileal conduit and ileal neobladder urinary diversions 12 months after radical cystectomy. We retrospectively included radical cystectomy patients. Propensity score-matched analysis was performed. The primary outcome was the incidence of a significant GFR decline in ileal conduit urinary diversion (ileal conduit group) and ileal neobladder urinary diversion (ileal neobladder group) 12 months after radical cystectomy. The secondary outcomes were the change of GFR and the incidence of end-stage renal disease (ESRD) in the two groups. After propensity score matching, the ileal conduit and neobladder groups had 117 patients each. The incidence of a significant GFR decline was not significantly different between ileal conduit and ileal neobladder groups (12.0% vs. 13.7%, p = 0.845). The change of GFR and ESRD incidence were not significantly different between the two groups (-8.4% vs. -9.7%, p = 0.480; 4.3% vs. 5.1%, p > 0.999, respectively). These results can provide important information on appropriate selection of the urinary diversion type in radical cystectomy.
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- 2020
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24. Plac8-mediated autophagy regulates nasopharyngeal carcinoma cell function via AKT/mTOR pathway.
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Huang ML, Qi CL, Zou Y, Yang R, Jiang Y, Sheng JF, Kong YG, Tao ZZ, and Chen SM
- Subjects
- Animals, Apoptosis genetics, Beclin-1 genetics, Beclin-1 metabolism, Cell Line, Tumor, Cell Proliferation, Disease Models, Animal, Disease Susceptibility, Epithelial-Mesenchymal Transition genetics, Gene Knockdown Techniques, Humans, Immunohistochemistry, Male, Mice, Models, Biological, Nasopharyngeal Neoplasms pathology, Proteins metabolism, RNA, Small Interfering genetics, Autophagy genetics, Nasopharyngeal Neoplasms etiology, Nasopharyngeal Neoplasms metabolism, Proteins genetics, Proto-Oncogene Proteins c-akt metabolism, Signal Transduction, TOR Serine-Threonine Kinases metabolism
- Abstract
To explore the relationship between autophagy and cell function, we investigated how PLAC8-mediated autophagy influences proliferation, apoptosis and epithelial-mesenchymal transition (EMT) in NPC. Colony formation analyses and CCK8 assays were used to assess the proliferative capacity of NPC cells. Transmission electron microscopy (TEM) was used to identify autophagosomes. Autophagic flux was monitored using the tandem monomeric RFP-GFP-tagged LC3 (tfLC3) assay. The rate of apoptosis in NPC cells was analysed by flow cytometry. Western blot analysis was used to evaluate the activation of autophagy and the signalling status of the AKT/mTOR pathway. Our study reveals that knocking out PLAC8 (koPLAC8) induces autophagy and apoptosis, while suppressing NPC cell proliferation and EMT. However, inhibition of autophagy with 3-methyladenine or by knocking down Beclin-1 reverses the cell proliferation, apoptosis and EMT influenced by koPLAC8. We find that koPLAC8 inhibits the phosphorylation of AKT and its downstream target, mTOR. Moreover, immunofluorescence and co-immunoprecipitation reveal complete PLAC8/AKT colocalization and PLAC8/AKT interaction, respectively. Furthermore, knockout of PLAC8 induced autophagy and inactivated AKT/mTOR signalling pathway of NPC xenografts. Overall, our findings demonstrate that koPLAC8 induces autophagy via the AKT/mTOR pathway, thereby inhibiting cell proliferation and EMT, and promoting apoptosis in NPC cells., (© 2020 The Authors. Journal of Cellular and Molecular Medicine published by Foundation for Cellular and Molecular Medicine and John Wiley & Sons Ltd.)
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- 2020
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25. [Prevention and control strategies and methods of novel coronavirus epidemic infection in department of otolaryngology head and neck surgery in hospital].
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Yang XL, Ren J, Xu Z, Lei WW, Yang K, Kong YG, Qu JN, Liao H, He Y, Chen HD, Zeng F, Wang Y, and Hua QQ
- Subjects
- Betacoronavirus, COVID-19, Cross Infection virology, Head surgery, Humans, Neck surgery, SARS-CoV-2, Coronavirus Infections prevention & control, Cross Infection prevention & control, Otolaryngology, Pandemics prevention & control, Pneumonia, Viral prevention & control
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- 2020
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26. Increased Expressions and Roles of CC Chemokine Ligand 21 and CC Chemokine Ligand 25 in Chronic Rhinosinusitis with Nasal Polyps.
- Author
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Liu MZ, Chen SM, Xu Y, Kong YG, Deng YQ, Li F, and Tao ZZ
- Subjects
- Adult, Aged, Aged, 80 and over, Chronic Disease, Disease Progression, Female, Humans, Immunohistochemistry, Male, Middle Aged, Severity of Illness Index, Up-Regulation, Young Adult, Chemokine CCL21 metabolism, Chemokines, CC metabolism, Macrophages immunology, Nasal Mucosa immunology, Nasal Polyps immunology, Rhinitis immunology, Sinusitis immunology
- Abstract
Introduction: Chronic rhinosinusitis (CRS) is a local inflammation of the nasal mucosa and sinus that persists for >12 weeks. As CC chemokine ligand (CCL) 19 expression is known to be elevated in CRS, and CCL 19, CCL21, and CCL25 share the same atypical chemokine receptor 4, so we focused on CCL21 and CCL25., Objectives: To investigate the expression of CCL21 and CCL25 in different types of CRS and their significance in CRS development., Methods: A total of 116 patients participated in the study, and uncinate process mucosa or nasal polyp (NP) specimens were collected during surgery. Western blotting and immunohistochemistry were performed to detect the expression of CCL21 and CCL25, respectively, in the nasal mucosa. Immunofluorescence was used to determine their cellular localization in NPs, whereas macrophage culture was used to determine their relationships with macrophages., Results: Immunohistochemistry revealed that the expressions of CCL21 and CCL25 were increased in NPs only. Western blotting revealed that these expressions were gradually increased in control, CRS without NP and CRS with NP groups and were positively correlated with disease severity. Furthermore, increased expressions of CCL21 and CCL25 in NPs were not related to eosinophil infiltration. Immunofluorescence results demonstrated colocalization of CCL25+ cells and CD68+ macrophages. CCL25 expression was increased in macrophage culture, especially in M1 macrophages, while CCL21 expression was not significantly associated with macrophages., Conclusions: CCL21 and CCL25 were significantly upregulated in NPs and positively correlated with disease severity. CCL25 upregulation was related to M1 macrophages., (© 2019 S. Karger AG, Basel.)
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- 2020
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27. Predictive and Diagnostic Value of Nasal Nitric Oxide in Eosinophilic Chronic Rhinosinusitis with Nasal Polyps.
- Author
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Lv H, Liu PQ, Xiang R, Zhang W, Chen SM, Kong YG, and Xu Y
- Subjects
- Adult, China, Chronic Disease, Cross-Sectional Studies, Early Diagnosis, Eosinophils pathology, Exhalation, Female, Humans, Leukocyte Count, Male, Middle Aged, Predictive Value of Tests, Prognosis, Young Adult, Nasal Polyps diagnosis, Nitric Oxide metabolism, Respiratory Function Tests methods, Rhinitis diagnosis, Sinusitis diagnosis
- Abstract
Background: A hallmark of eosinophilic chronic rhinosinusitis with nasal polyps (eCRSwNP) is mucosal eosinophil-predominant inflammation. Nasal nitric oxide (nNO) is a known biomarker of eosinophilic inflammation in the upper airway. However, the utility of nNO measurement in the upper airway remains controversial. The present study aimed to compare the use of other clinical parameters with nNO to prediagnose patients with eCRSwNP from Central China., Methods: From June 2019 to December 2019, 70 patients with CRSwNP undergoing endoscopic sinus surgery and 30 healthy subjects were enrolled. nNO measurements were performed in all of these subjects. Computed tomography scans, full blood count with differential analysis, and determination of total immunoglobulin E (total IgE) and plasma cytokines were performed before surgery. Receiver operating characteristic curves and logistic regression analysis were used to assess the predictive potential of the clinical parameters., Results: We recruited 24 patients with eCRSwNP and 46 with noneosinophilic CRSwNP (non-eCRSwNP). In patients with eCRSwNP, nNO levels were significantly higher than those in patients with non-eCRSwNP (p < 0.0001). Blood eosinophil percentages and counts, total IgE, and CT-derived ethmoid sinus and maxillary sinus ratio (E/M ratio) were all significantly higher compared with those in patients with non-eCRSwNP (p < 0.05). To diagnose eCRSwNP, the highest area under the curve (0.803) was determined for nNO. At a cutoff of >329 parts per billion (ppb), the sensitivity was 83.30% and the specificity was 71.70%. However, the levels of plasma cytokines Th1/Th2 were not significantly different between the histological types of CRSwNP (p > 0.05)., Conclusion: Measurement of nNO is useful for the early diagnosis of eCRSwNP., (© 2020 S. Karger AG, Basel.)
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- 2020
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28. [Expression of amphiregulin in different types of nasal polyps and its correlation with tissue remodeling].
- Author
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Gao L, Xu Y, Zhang W, Xiang R, Yao C, Kong YG, and Tao ZZ
- Subjects
- Adolescent, Adult, Chronic Disease, Female, Fibrosis pathology, Humans, Male, Middle Aged, Nasal Mucosa pathology, Nasal Mucosa surgery, Nasal Polyps pathology, Nasal Polyps surgery, Rhinitis pathology, Rhinitis surgery, Sinusitis pathology, Sinusitis surgery, Young Adult, Amphiregulin biosynthesis, Eosinophils metabolism, Nasal Mucosa metabolism, Nasal Polyps metabolism, Rhinitis metabolism, Sinusitis metabolism
- Abstract
Objective: To explore the expression of amphiregulin (AREG) in nasal polyps patients with different degrees of eosinophil infiltration, and to analyze the correlation between AREG and tissue remodeling. Methods: Forty-eight patients underwent endoscopic sinus surgery in the Department of Otorhinolaryngology Head and Neck Surgery, Remin Hospital, Wuhan University from July 2017 to August 2018 were recruited, including 40 males and 8 females, aged from 16 to 60 years old. The subjects were divided into three groups: control group ( n= 14), eosinophilic chronic sinusitis with nasal polyps (ECRSwNP) group ( n= 19) and noneosinophilic chronic rhinosinusitis with nasal polyps (non-ECRSwNP) group ( n =15). The relative expression of AREG in nasal mucosa was detected by Western blot assay and immunohistochemical staining. Tissue remodeling was detected by HE staining, AB-PAS staining and Masson staining. Kruskal - Wallis test was used for comparison among multiple groups, and Spearman correlation analysis was conducted between the expression level of AREG and the related indexes of tissue remodeling. Results: The expression of AREG in ECRSwNP group was significantly higher than that in non-ECRSwNP group and control group (median protein expression of Western blot was 1.592 vs 0.617 vs 0.582, all P< 0.05). The degree of epithelial injury and goblet cell metaplasia in ECRSwNP group was significantly higher than that in control group (all P< 0.05), the percentage of collagen fibrosis area in ECRSwNP group was significantly lower than that in control group ( P= 0.01). In chronic rhinosinusitis with nasal polyps (CRSwNP) patients, the area of mucous glands was negatively correlated with the expression of AREG ( r= -0.616, P< 0.05), and the percentage of collagen fibrosis area was negatively correlated with the expression of AREG ( r= -0.738, P< 0.05). Conclusion: The expression of AREG is higher in ECRSwNP patients, which is related to the process of tissue remodeling.
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- 2019
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29. NOTCH2 negatively regulates metastasis and epithelial-Mesenchymal transition via TRAF6/AKT in nasopharyngeal carcinoma.
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Zou Y, Yang R, Huang ML, Kong YG, Sheng JF, Tao ZZ, Gao L, and Chen SM
- Subjects
- Adult, Aged, Animals, Biomarkers, Cell Line, Tumor, Disease Models, Animal, Female, Gene Expression Regulation, Neoplastic, Humans, Immunohistochemistry, Male, Mice, Middle Aged, Models, Molecular, Nasopharyngeal Carcinoma genetics, Nasopharyngeal Carcinoma mortality, Neoplasm Metastasis, Neoplasm Staging, Prognosis, Protein Binding, Receptor, Notch2 genetics, Signal Transduction, Epithelial-Mesenchymal Transition, Nasopharyngeal Carcinoma metabolism, Nasopharyngeal Carcinoma pathology, Proto-Oncogene Proteins c-akt metabolism, Receptor, Notch2 metabolism, TNF Receptor-Associated Factor 6 metabolism
- Abstract
Background: Clinically, distant metastasis after primary treatment remains a key problem in nasopharyngeal carcinoma (NPC). Thus, identification of the underlying mechanisms and development of novel therapeutic strategies are urgently needed. NOTCH has been shown to function as a tumor promotor that enhances angiogenesis, cancer invasion and metastasis in NPC. However, the precise roles of the four individual NOTCH receptors and their mechanisms of action are unclear., Methods: We used Western blot analysis, immunofluorescence, immunohistochemical analysis, phalloidin staining, mouse tumor metastatic dissemination models, gene set enrichment analysis, immunoprecipitation assays and a series of functional assays to determine the potential role of NOTCH2 in regulating NPC metastasis., Results: NOTCH2 expression in the NPC tissues of patients with cervical lymph node metastasis was lower than that of patients without cervical lymph node metastasis. Correspondingly, NOTCH2 expression was low in metastatic and poorly differentiated NPC cells. NOTCH2 expression correlated negatively with survival time in patients with NPC. Suppression of NOTCH2 expression promoted NPC cell metastasis, whereas NOTCH2 overexpression inhibited this process. Furthermore, NOTCH2 attenuated the TRAF6-AKT signaling axis via an interaction between the NOTCH2 intracellular domain (N2ICD) and TRAF6, which inhibited epithelial-mesenchymal transition (EMT) and eventually suppressed NPC metastasis., Conclusions: These findings reveal that loss of NOTCH2 activates the TRAF6/AKT axis and promotes metastasis in NPC, suggesting that NOTCH2 may represent a therapeutic target for the treatment of NPC.
- Published
- 2019
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30. [Advances of studies on the occurrence of the upper respiratory disease correlative with immunity and tobacco].
- Author
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Zuo JJ, Xi Y, Zhu MX, Qu JN, Wang Y, Tao SZ, Hu Y, Chen SM, and Kong YG
- Subjects
- Humans, Immunity, Innate, Nose, Respiratory Tract Diseases immunology, Rhinitis, Sinusitis, Nicotiana, Tobacco Use immunology, Respiratory Tract Diseases epidemiology, Tobacco Use epidemiology
- Abstract
Summary Tobacco smoke exposure has obvious and complex effects on the immune system of the human upper respiratory tract, including pro-inflammatory and anti-immune effects. Exposure to tobacco smoke is closely related to the occurrence and development of allergic rhinitis, the common rhinitis and sinusitis. The innate immune system is influenced by tobacco smoking through its effects on the respiratory mucosa and its adjuncts, natural killer cells, dendritic cells, neutrophils and innate immune receptors. Cigarette smoke can also affect the humoral immunity and cellular immunity, altering the acquired immune condition of the upper respiratory tract. Tobacco smoke exposure promotes the occurrence and development of the upper respiratory tract infectious diseases and allergic diseases by changing the composition of microflora in the upper respiratory tract., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)
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- 2019
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31. Tangeretin promotes regulatory T cell differentiation by inhibiting Notch1/Jagged1 signaling in allergic rhinitis.
- Author
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Xu S, Kong YG, Jiao WE, Yang R, Qiao YL, Xu Y, Tao ZZ, and Chen SM
- Subjects
- Animals, Cell Differentiation drug effects, Cytokines immunology, Female, Flavones therapeutic use, Forkhead Transcription Factors immunology, Mice, Inbred C57BL, Rhinitis, Allergic drug therapy, Signal Transduction drug effects, Spleen drug effects, Spleen immunology, T-Lymphocytes, Regulatory immunology, Flavones pharmacology, Jagged-1 Protein immunology, Receptor, Notch1 immunology, Rhinitis, Allergic immunology, T-Lymphocytes, Regulatory drug effects
- Abstract
Background and Objective: Tangeretin demonstrates broad anti-inflammatory effects. The present study aimed to assess whether tangeretin functions in regulating T-regulatory cells (Tregs) and alleviating allergic rhinitis (AR)., Methods: An ovalbumin (OVA)-induced AR animal model was constructed to monitor the changes in the allergic symptom score, OVA-specific IgE titers, histopathological characteristics and T-helper cell (Th1, Th2, and Th17)-related cytokine levels under tangeretin or dexamethasone (DXM) administration. The expression levels of Notch1/Jagged1 and FOXP3, and the proportion of Tregs in the spleens of these animals, were also detected. Furthermore, purified naive CD4 + T cells were utilized to assess the effects of tangeretin on Notch1 expression and their differentiation in vitro., Results: Both tangeretin and DXM administration alleviated airway inflammation, decreased the production of serum OVA-induced IgE, but only tangeretin administration restored the balance of cytokine profiles compared with those in the AR group. The abundance of splenic CD4 + CD25 + FOXP3 + Treg cells and the transcription factor FOXP3 were significantly increased under tangeretin treatment, either in AR mice or in naïve CD4 + T-cell differentiation, followed by a concomitant reduction in Notch1/Jagged1 expression. However, as a positive control, the treatment of allergic rhinitis with dexamethasone was not related to the expression of Notch1/Jagged1 or the differentiation of Treg cells., Conclusion: Tangeretin could promote regulatory T cell responses by inhibiting Notch1/Jagged1 expression, followed by promoting FOXP3/Treg cell differentiation and thus could serve as a novel curative therapeutic for AR., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
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32. Effect of Ketorolac on the Prevention of Postoperative Catheter-Related Bladder Discomfort in Patients Undergoing Robot-Assisted Laparoscopic Radical Prostatectomy: A Randomized, Double-Blinded, Placebo-Controlled Study.
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Park JY, Hong JH, Yu J, Kim DH, Koh GH, Lee SA, Hwang JH, Kong YG, and Kim YK
- Abstract
Urinary catheterization can cause catheter-related bladder discomfort (CRBD). Ketorolac is widely used for pain control. Therefore, we evaluated the effect of ketorolac on the prevention of CRBD in patients undergoing robot-assisted laparoscopic radical prostatectomy (RALP). All patients were randomly allocated to the ketorolac group or the control group. The primary outcome was CRBD above a moderate grade at 0 h postoperatively. CRBD above a moderate grade at 1, 2, and 6 h was also assessed. Postoperative pain, opioid requirement, ketorolac-related complications, patient satisfaction, and hospitalization duration were also assessed. The incidence of CRBD above a moderate grade at 0 h postoperatively was significantly lower in the ketorolac group (21.5% vs. 50.8%, p = 0.001) as were those at 1, 2, and 6 h. Pain scores at 0 and 1 h and opioid requirement over 24 h were significantly lower in the ketorolac group, while patient satisfaction scores were significantly higher in the ketorolac group. Ketorolac-related complications and hospitalization duration were not significantly different between the two groups. This study shows ketorolac can reduce postoperative CRBD above a moderate grade and increase patient satisfaction in patients undergoing RALP, suggesting it is a useful option to prevent postoperative CRBD.
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- 2019
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33. Effect of transformer noise on the neurophysiology of SD rats.
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Zou Y, Yi X, Zhang JG, Liu XF, Yang K, Kong YG, Xiao BK, Tao ZZ, and Chen SM
- Abstract
Transformer noise is a type of environmental sound that causes discomfort to individuals. The aim of the present study was to determine the effect of relatively long-term periods of transformer noise on the behavior and neurophysiology of SD rats. A total of 90 healthy SD rats with normal hearing were randomly divided into two experimental groups (65 and 60 dB group) and a control group. The experimental groups were exposed to recorded transformer noise for 8 weeks (sound level limits: 65 or 60 dB) and the control group was maintained under the same conditions without noise stimulation. Changes in physiological growth (weight tests), behavior (tail suspension and open field behavior tests) and neurophysiology (glutamate, γ-aminobutyric acid, dopamine, 5-hydroxytryptamine, the morphologies of hippocampi) following noise exposure were recorded and compared. The results revealed that rats exhibited normal physiological growth, with no significant difference between the experimental and control groups. Following noise exposure, no significant differences were observed in the results of behavioral experiments (tail suspension and open field behavior tests) between the experimental and control groups. In addition, there were no significant differences in glutamate, γ-aminobutyric acid, dopamine and 5-hydroxytryptamine levels or in the morphologies of hippocampi between groups. In conclusion, exposure to transformer noise with a sound level limit of 65 dB sound pressure level (SPL) or 60 dB SPL (spectral range, 100-800 Hz) for 8 weeks (10 h/day) had no significant impact on the behavior and neurophysiology of SD rats.
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- 2019
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34. Semaphorin 3A inhibits allergic inflammation by regulating immune responses in a mouse model of allergic rhinitis.
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Xiang R, Xu Y, Zhang W, Kong YG, Tan L, Chen SM, Deng YQ, and Tao ZZ
- Subjects
- Adult, Allergens immunology, Animals, Cytokines blood, Disease Models, Animal, Female, Humans, Immunoglobulin E blood, Immunologic Factors pharmacology, Male, Mice, Inbred BALB C, Ovalbumin immunology, Recombinant Proteins pharmacology, Rhinitis, Allergic blood, Semaphorin-3A pharmacology, T-Lymphocytes immunology, Young Adult, Immunologic Factors blood, Rhinitis, Allergic immunology, Semaphorin-3A blood
- Abstract
Background: It has been reported that semaphorin 3A (sema3A) could improve allergic symptoms in allergic rhinitis (AR) mice. However, the immunomodulatory roles of sema3A in AR remain unclear. This study was performed to determine the immunoregulatory effects of sema3A on airway inflammation in an AR mice model., Methods: First, sema3A expression was measured in the serum of AR patients and also in a mice model. Then, nasal symptoms, ovalbumin (OVA)-specific immunoglobulin E (IgE) production, cytokine levels, and histologic structure were analyzed in OVA-sensitized mice, sema3A mice, mice given saline, and controls. The percentages of CD4
+ IL-4+ IFN-γ- Th2 cells, CD4+ IFN-γ+ IL-4- Th1 cells, CD4+ IL-17+ Th17 cells, and CD4+ CD25+ Foxp3+ Treg cells in the spleen were also analyzed., Results: Serum sema3A levels in both AR patients and OVA-sensitized mice decreased significantly compared with controls. The intranasal administration of sema3A reduced allergic symptom scores, eosinophil infiltration, and OVA-specific IgE production in OVA-sensitized mice. In addition, levels of IL-4 and IL-17 as well as percentages of CD4+ IL-17+ Th17 cells were suppressed by sema3A administration. Levels of IFN-γ and IL-10 and ratios of CD4+ IFN-γ+ IL-4- Th1/CD4+ IL-4+ IFN-γ- Th2 cells, as well as percentages of CD4+ CD25+ Foxp3+ Treg cells, were increased by administration of sema3A., Conclusion: Our results demonstrate that sema3A suppressed allergic inflammation in AR via inhibition of Th2/Th17 responses and enhancement of Th1/Treg responses., (© 2018 ARS-AAOA, LLC.)- Published
- 2019
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35. [Characteristic analysis of aeroallergens of allergic rhinitis patients in Wuhan].
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Yang R, Zou Y, Qiao YL, Kong YG, Xu Y, Tao ZZ, and Chen SM
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- Adolescent, Adult, Animals, Cats, Cockroaches, Dermatophagoides pteronyssinus, Dust, Female, Fungi, Humans, Male, Skin Tests, Allergens immunology, Rhinitis, Allergic immunology
- Abstract
Objective: To analyze the distribution characteristics of common aeroallergens in patients with allergic rhinitis(AR)in Wuhan. Method: Serum specific IgE(ssIgE)was detected in 1 983 patients with clinically diagnosed AR by Midiwiss Allergen Screen system. Data was analyzed statistically. Result: Among the 1 983 patients,1 507(76.0%)had at least one positive ssIgE. The most common aeroallergens were Dermatophagoides pteronyssinus(62.0%),mixed fungi(32.1%)and house dust(27.3%).Single positive allergen(43.8%),dual positive allergen(28.1%)and triple positive allergen(15.4%)were the most common combinations. The proportion of single positive allergens in the juvenile group(1 to 17 years old)(35.2%)was lower than adult group(≥18 years old)(46.7%),while the proportion of multiple positive allergens was higher than adult group. The positive rates of mulberry and mixed grass in male group were higher than female group. The positive rates of house dust,cat fur and dog fur in the juvenile group were higher than the adult group,while the positive rate of mulberry,cockroach and mixed grass were lower than the adult group. In the elder group(60-88 years old),the positive rates of Dermatophagoides pteronyssinus and mixed fungi were higher than the other three groups. The positive rates of Dermatophagoides pteronyssinus in summer and autumn were higher than that in winter and spring. The positive rate of mixed grass in autumn was much higher and the positive rate of mixed trees and mulberry trees in spring was higher than summer and autumn. Conclusion: Dermatophagoides pteronyssinus,mixed fungi and house dust were the most common aeroallergens among patients with allergic rhinitis in Wuhan. The distribution characteristics in different genders,ages and seasons were different.., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)
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- 2019
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36. Acute kidney injury after burn surgery: Preoperative neutrophil/lymphocyte ratio as a predictive factor.
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Kim HY, Kong YG, Park JH, and Kim YK
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- Acute Kidney Injury mortality, Adult, Aged, Burns, Inhalation complications, Burns, Inhalation mortality, Female, Humans, Kaplan-Meier Estimate, Male, Middle Aged, Postoperative Complications mortality, Predictive Value of Tests, Retrospective Studies, Risk Factors, Survival Analysis, Treatment Outcome, Acute Kidney Injury diagnosis, Acute Kidney Injury etiology, Burns surgery, Leukocyte Count, Lymphocyte Count, Neutrophils, Postoperative Complications drug therapy, Postoperative Complications therapy
- Abstract
Background: Severe inflammation and acute kidney injury (AKI) are serious adverse events after burn injuries. The neutrophil/lymphocyte ratio (NLR) is a marker of inflammation. We evaluated the independent risk factors for postoperative AKI, including NLR, in burn-injured patients., Methods: The preoperative, intraoperative, and postoperative variables of 473 burn-injured patients were collected. The risk factors for AKI after burn surgery were evaluated using univariate and multivariate logistic regression analyses. The receiver operating characteristic (ROC) curve analysis of preoperative NLR was performed. The 3-month mortality after surgery was also compared between AKI and non-AKI groups using Kaplan-Meier analysis with a log-rank test., Results: Postoperative AKI occurred in 71 of 473 (15.0%) burn patients. The total body surface area burned (odds ratio (OR), 1.013; 95% confidence interval (CI), 1.001-1.026; P = 0.037), inhalation injury (OR, 1.821; 95% CI, 1.008-3.292; P = 0.047), and preoperative NLR (OR, 1.094; 95% CI, 1.064-1.125; P < 0.001) were risk factors for AKI after surgery. The area under the ROC curve was 0.767, with an optimal cut-off value of 11.7. Moreover, the 3-month mortality after surgery was significantly higher in the AKI group than in the non-AKI group (49.3% vs 14.9%, P < 0.001)., Conclusion: Total body surface area burned, inhalation injury, and preoperative NLR are risk factors for AKI after burn surgery, which is associated with early postoperative mortality. Preoperative NLR can provide useful information for the early detection of postoperative AKI and subsequent mortality in burn-injured patients., (© 2018 The Acta Anaesthesiologica Scandinavica Foundation. Published by John Wiley & Sons Ltd.)
- Published
- 2019
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37. Notch Signaling Promotes Development of Allergic Rhinitis by Suppressing Foxp3 Expression and Treg Cell Differentiation.
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Jiao WE, Wei JF, Kong YG, Xu Y, Tao ZZ, and Chen SM
- Subjects
- Animals, Biomarkers, Case-Control Studies, Cytokines metabolism, Disease Models, Animal, Female, Forkhead Transcription Factors metabolism, Humans, Immunoglobulin E blood, Immunoglobulin E immunology, Jagged-1 Protein metabolism, Male, Mice, Nasal Mucosa immunology, Nasal Mucosa metabolism, Receptor, Notch1 metabolism, Rhinitis, Allergic diagnosis, Severity of Illness Index, Spleen immunology, Spleen metabolism, T-Lymphocyte Subsets immunology, T-Lymphocyte Subsets metabolism, Forkhead Transcription Factors genetics, Gene Expression Regulation, Receptors, Notch metabolism, Rhinitis, Allergic etiology, Rhinitis, Allergic metabolism, Signal Transduction, T-Lymphocytes, Regulatory immunology, T-Lymphocytes, Regulatory metabolism
- Abstract
Background: The Notch signaling pathway plays an important role in regulating human immune function, but the relationship between allergic rhinitis (AR) and Notch signaling remains unclear., Objective: To investigate the role of Notch signaling in the pathogenesis of AR and its regulation on Foxp3-Treg cells., Method: The sera of 100 patients with AR and 50 controls were collected to assess the differences in Notch1, Jagged1, and DLL1 (Delta-like 1) expression. Experimental mice were divided into normal control, AR, Notch inhibitor, and dexamethasone groups. Allergic symptoms, total IgE levels, and the proportion of Treg cells in the peripheral blood were detected. Notch1, Jagged1, NICD (Notch intracellular domain, also known as ICN), and Foxp3 expression and Th1/Th2/Th17-related cytokines in the spleen were detected and compared between each group of mice., Results: Compared with the control group, the expression of Notch1 and Jagged1 in patients with AR was significantly elevated (p < 0.05). The expression of Notch1 and Jagged1 in patients with severe AR was higher than that observed in the mild to moderate AR patients and positively correlated with the levels of allergen sIgE (p < 0.05). The animal experiments revealed that compared with the normal control group, the expression of Notch1, Jagged1, and NICD in the AR group was increased, Foxp3 expression was decreased, and the proportion of Treg cells was decreased (p < 0.05). Compared with the AR group, allergic symptoms and total serum IgE levels and the expression of Notch1, Jagged1, and NICD were significantly decreased in the Notch inhibited group, whereas the expression of Foxp3 and the proportion of Treg cells were increased significantly (p < 0.05). The Th2-type immune responses were also enhanced and Th1-type immune responses decreased in the AR group, but the Th1/Th2 imbalance was reversed in the Notch inhibited group., Conclusion: Notch signaling downregulates Foxp3 expression and inhibits the differentiation of Treg cells to promote the development of AR. Blocking Notch signaling may be a potential treatment for AR., (© 2018 S. Karger AG, Basel.)
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- 2019
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38. Placenta specific 8 gene induces epithelial-mesenchymal transition of nasopharyngeal carcinoma cells via the TGF-β/Smad pathway.
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Huang ML, Zou Y, Yang R, Jiang Y, Sheng JF, Han JB, Kong YG, Tao ZZ, and Chen SM
- Subjects
- Animals, Cell Line, Tumor, Cell Membrane metabolism, Cell Movement genetics, Cell Proliferation genetics, Female, Gene Expression Regulation, Neoplastic, Humans, Male, Mice, Inbred BALB C, Mice, Nude, Middle Aged, Neoplasm Invasiveness, Proteins metabolism, Up-Regulation genetics, Epithelial-Mesenchymal Transition genetics, Nasopharyngeal Carcinoma genetics, Nasopharyngeal Carcinoma pathology, Proteins genetics, Signal Transduction, Smad Proteins metabolism, Transforming Growth Factor beta metabolism
- Abstract
The present study aimed to investigate the effects and mechanisms of PLAC8 on the epithelial-mesenchymal transition (EMT) of Nasopharyngeal carcinoma (NPC). The expression of PLAC8 in NPC and nasopharyngitis (NPG) tissues from 150 patients was determined using immunohistochemistry. The levels of PLAC8 in five NPC cell lines and nasopharyngeal permanent epithelial cell line were measured using western blotting. We then knocked out or overexpressed PLAC8 in CNE2 cells. Cell proliferation, wound healing, migration, and invasion assays were used to analyze the effects of PLAC8 on the proliferation, migration, and invasion in vivo and vitro. The results showed that the expression of PLAC8 was much higher in NPC tissues than in NPG tissues. The expression of PLAC8 was higher in all the cell lines than in the nasopharyngeal permanent epithelial cells. PLAC8 knockout resulted in significant decreases in cell proliferation, migration, and invasion; associated with lower protein levels of N-cadherin; and increased levels of E-cadherin. Overexpression of PLAC8 had the opposite effect. Furthermore, knockout of PLAC8 inactivated TGF-β/SMAD signaling pathway and suppressed the growth of NPC xenografts. PLAC8 may promote the carcinogenesis and EMT of NPC via the TGF-β/Smad pathway, which suggests that PLAC8 may be a potential biomarker for NPC., (Copyright © 2018 Elsevier Inc. All rights reserved.)
- Published
- 2019
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39. Different effects of allergic rhinitis on nasal mucosa remodeling in chronic rhinosinusitis with and without nasal polyps.
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Xiang R, Zhang QP, Zhang W, Kong YG, Tan L, Chen SM, Deng YQ, Tao ZZ, and Xu Y
- Subjects
- Adolescent, Adult, Aged, Blotting, Western, Chronic Disease, Collagen metabolism, Female, Humans, Immunohistochemistry, Male, Matrix Metalloproteinase 9 metabolism, Middle Aged, Nasal Mucosa metabolism, Nasal Polyps complications, Nasal Polyps metabolism, Rhinitis, Allergic complications, Rhinitis, Allergic metabolism, Tissue Inhibitor of Metalloproteinase-1 metabolism, Transforming Growth Factor beta1 metabolism, Young Adult, Nasal Mucosa pathology, Nasal Polyps pathology, Rhinitis, Allergic pathology
- Abstract
Background: Allergic rhinitis (AR) has been reported to be associated with chronic rhinosinusitis (CRS). The objective of this study was to investigate the effect of AR on nasal mucosa remodeling in CRS., Methods: Patients were enrolled and divided into the following groups: CRS with nasal polyps (NP) with allergic rhinitis (AR)(CRSwNPwAR; n = 20), CRS with NP without AR (CRSwNPsAR; n = 20), CRS without NP with AR (CRSsNPwAR; n = 20), CRS without NP without AR (CRSsNPsAR; n = 20), AR without CRS (AR; n = 20) and controls (n = 14). Eosinophil infiltration, mucus production, and collagen deposition were examined by hematoxylin and eosin, periodic acid schiff and masson's trichrome staining, respectively. VEGF-A and microvessel density were detected by immunohistochemistry. The expression of remodeling markers, including TGF-β1, MMP-7, MMP-9 and TIMP-1 were measured by Western blot., Results: The expression of remodeling factors, including VEGF-A, CD31, CD34 and TIMP-1 were significantly increased in CRSwAR compared to CRSsAR. Goblet cell hyperplasia, as well as VEGF-A, CD31, CD34, and MMP-9 expression were significantly higher in CRSwNPwAR compared to CRSwNPsAR. However, the expression of collagen fibers, MMP-7 and TGF-β1 were significantly higher in CRSsNPwAR compared to CRSsNPsAR., Conclusions: AR could enhance the remodeling process in CRS. Moreover, AR had different effects on CRSwNP and CRSsNP.
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- 2019
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40. [Expression and significance of Notch1-Jagged1 in allergic rhinitis].
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Jiao WE, Wei JF, Xu S, Kong YG, Xu Y, Tao ZZ, and Chen SM
- Subjects
- Animals, Case-Control Studies, Disease Models, Animal, Eosinophils cytology, Humans, Immunoglobulin E blood, Interleukin-10 metabolism, Interleukin-6 metabolism, Mice, Mice, Inbred BALB C, Nasal Mucosa cytology, Ovalbumin, T-Lymphocytes, Helper-Inducer cytology, T-Lymphocytes, Regulatory cytology, Th17 Cells, Jagged-1 Protein metabolism, Nasal Mucosa metabolism, Receptor, Notch1 metabolism, Rhinitis, Allergic metabolism
- Abstract
Objective: To study the expression and significance of Notch1-Jagged1 in nasal mucosa of allergic rhinitis (AR) mouse model in various stages and in the serum of AR patients. Methods: Thirty-six mice were divided into 3 groups: control group, basal sensitization group (OVA) and OVA/AR group, with 12 mice in each group. Allergic symptom in each group were scored after AR model establishment. HE staining method was used to observe the nasal mucosa eosinophils infiltration. ELISA was used to detect the serum level of total IgE. Flow cytometry was used to detect the change of Treg cells in each group. Western blot was used to detect the expression of Notch1 and Jagged1 in nasal mucosa. Flow cytometric bead array (CBA) was used to detect the level of Th1/Th2/Th17 cytokines in splenic lymphocytes. The serum was obtained from 50 patients with AR and 30 control volunteers in Department of Otorhinolaryngology Head and Neck Surgery, Renmin Hospital of Wuhan University from June to October 2017. ELISA was used to detect the expression of Notch1 and Jagged1. Results: Compared with the control group, the allergy symptom, the number of nasal mucosal eosinophils and the level of total IgE were not significantly different in basal sensitization group, but increased significantly in OVA/AR group (6.11±0.78 vs 0.67±0.50, 77.67±5.61 vs 10.33±0.82, (106.80±11.91) pg/ml vs (82.45±19.80) pg/ml, t value was 19.471, 34.848, 2.542, respectively, all P <0.05). Compared with the control group, the ratio of Treg cell increased in basal sensitization group but decreased in OVA/AR group ((10.29±0.47)% vs (9.28±0.16)%, (8.49±0.15)% vs (9.28±0.16)%, t value was 5.838, 4.540, respectively, all P <0.01). Compared with control group, the expression of Notch1 increased significantly both in basal sensitization group and OVA/AR group (1.04±0.05 vs 0.71±0.05, 1.83±0.10 vs 0.71±0.05, t value was 9.293, 31.363, respectively, all P <0.01); and the expression of Jagged1 only increased significantly in OVA/AR group (0.41±0.04 vs 0.21±0.01, t =13.472, P <0.01). It was found that Notch1 was positively correlated with the level of IL-6, IL-10 by Pearson test ( r value was 0.98, 0.87, respectively, all P <0.01). Compared with control volunteers, the expression of Notch1 and Jagged1 increased significantly in AR group patients ((1 135.0±254.9) pg/ml vs (436.0±139.3) pg/ml, (1 200.2±401.0) pg/ml vs (559.9±124.2) pg/ml, t value was 13.99, 11.94, respectively, all P <0.01). Conclusions: The expression of Notch1 receptor and ligand increased significantly in the pathogenesis of AR. Notch1-Jagged1 may promote the occurrence and development of AR by up-regulating the expression of IL-6 and IL-10.
- Published
- 2018
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41. Effect of intraoperative mannitol administration on acute kidney injury after robot-assisted laparoscopic radical prostatectomy: A propensity score matching analysis.
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Kong YG, Park JH, Park JY, Yu J, Lee J, Park SU, Jeong IG, Hwang JH, Kim HY, and Kim YK
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- Body Mass Index, Humans, Laparoscopy methods, Logistic Models, Male, Operative Time, Postoperative Period, Risk Factors, Socioeconomic Factors, Acute Kidney Injury prevention & control, Mannitol administration & dosage, Postoperative Complications prevention & control, Prostatectomy methods, Prostatic Neoplasms surgery, Robotics
- Abstract
Mannitol, an osmotic diuretic, has been used to prevent acute kidney injury (AKI). However, studies have found divergent effects of intraoperative mannitol administration on postoperative AKI. We therefore evaluated the effects of intraoperative mannitol administration on AKI after robot-assisted laparoscopic radical prostatectomy (RALP) in prostate cancer patients.A total of 864 patients who underwent RALP were divided into mannitol (administered at 0.5 g/kg) and no-mannitol groups. Demographics, cancer-related data, preoperative laboratory values, intraoperative data, and postoperative outcomes such as AKI, chronic kidney disease at 12 months postoperation, duration of hospital stay, and intensive care unit admission rate and duration of stay were compared between the 2 groups using propensity score matching analysis. To determine the risk factors for AKI after RALP, univariate and multivariate logistic regression analyses were performed. Postoperative AKI was defined according to the Kidney Disease: Improving Global Outcomes criteria.After performing 1:1 propensity score matching, the mannitol and no-mannitol groups included 234 patients each. The overall incidence of AKI after RALP was 5.1% and was not significantly different between the no-mannitol and mannitol groups in the propensity score-matched patients (13 [5.6%] vs. 11 [4.7%], P = .832). Univariate logistic regression analysis revealed that body mass index and operative time were associated with AKI in 864 patients who underwent RALP. However, intraoperative mannitol administration was not associated with AKI after RALP (P = .284). Multivariate logistic regression analysis revealed that operative time was significantly associated with AKI after RALP (odds ratio = 1.013, P = .001). The incidence of chronic kidney disease (13 [5.6%] vs. 12 [5.1%], P = 1.000) and other postoperative outcomes were not also significantly different between the no-mannitol and mannitol groups in the propensity score-matched patients.Intraoperative mannitol administration has no beneficial effect on the prevention of AKI after RALP in prostate cancer patients. This result provides useful information for clinical practice guidelines regarding intraoperative mannitol use.
- Published
- 2018
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42. LncRNA-LINC00460 facilitates nasopharyngeal carcinoma tumorigenesis through sponging miR-149-5p to up-regulate IL6.
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Kong YG, Cui M, Chen SM, Xu Y, Xu Y, and Tao ZZ
- Subjects
- Animals, Carcinoma genetics, Carcinoma metabolism, Cell Line, Tumor, Cell Proliferation, Gene Knockdown Techniques, Humans, Male, Mice, Mice, Inbred BALB C, Nasopharyngeal Carcinoma, Nasopharyngeal Neoplasms genetics, Nasopharyngeal Neoplasms metabolism, Carcinogenesis genetics, Carcinoma pathology, Interleukin-6 metabolism, MicroRNAs physiology, Nasopharyngeal Neoplasms pathology, RNA, Long Noncoding physiology, Up-Regulation
- Abstract
Long non-coding RNAs (lncRNAs) have played crucial roles in various cancers, including nasopharyngeal carcinoma (NPC). In our study, we focused on the biological function and clinical significance of lncRNA LINC00460 in NPC. It was indicated that LINC00460 was markedly increased in NPC tissues and cells compared to their corresponding controls. Silencing LINC00460 was able to suppress NPC cell growth in vitro while overexpressing LINC00460 reversed this process. Moreover, in vivo tumor xenografts were established using CNE-1/SUNE-1 cells to detect the function of LINC00460 in NSCLC tumorigenesis. Rescue assay was performed to further confirm that LINC00460 contributed to the progression of NPC through regulating miR-149-5p/IL6 signal pathway. In conclusion, we have uncovered that LINC00460 could be regarded as a novel prognostic biomarker and therapeutic target in NPC diagnosis and treatment., (Copyright © 2017 Elsevier B.V. All rights reserved.)
- Published
- 2018
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43. Risk Factors Associated with Decreased Renal Function after Hand-Assisted Laparoscopic Donor Nephrectomy: A Multivariate Analysis of a Single Surgeon Experience.
- Author
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Lim J, Kong YG, Kim YK, and Hong B
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Multivariate Analysis, Retrospective Studies, Risk Factors, Hand-Assisted Laparoscopy adverse effects, Kidney surgery, Nephrectomy adverse effects
- Abstract
Background: Hand-assisted laparoscopic donor nephrectomy is a minimally invasive procedure for living kidney donation. The surgeon operative volume is associated with postoperative morbidity and mortality. We evaluated the risk factors associated with decreased renal function after hand-assisted laparoscopic donor nephrectomy performed by a single experienced surgeon. Methods: We included living renal donors who underwent hand-assisted laparoscopic donor nephrectomy by a single experienced surgeon between 2006 and 2013. Decreased renal function was defined as an estimated glomerular filtration rate (eGFR) of < 60 mL/min/1.73 m
2 on postoperative day 4. The donors were categorized into groups with postoperative eGFR < 60 mL/min/1.73 m2 or ≥ 60 mL/min/1.73 m2 . Univariate and multivariate logistic regression analyses were performed to evaluate the risk factors associated with decreased renal function after hand-assisted laparoscopic donor nephrectomy. The hospital stay duration, intensive care unit admission rate, and eGFR at postoperative year 1 were evaluated. Results: Of 643 patients, 166 (25.8%) exhibited a postoperative eGFR of < 60 mL/min/1.73 m2 . Multivariate logistic regression analysis demonstrated that the risk factors for decreased renal function were age [odds ratio (95% confidence interval), 1.062 (1.035-1.089), P < 0.001], male sex [odds ratio (95% confidence interval), 3.436 (2.123-5.561), P < 0.001], body mass index (BMI) [odds ratio (95% confidence interval), 1.093 (1.016-1.177), P = 0.018], and preoperative eGFR [odds ratio (95% confidence interval), 0.902 (0.881-0.924), P < 0.001]. There were no significant differences in postoperative hospital stay duration and intensive care unit admission rate between the two groups. In addition, 383 of 643 donors were analyzed at postoperative year 1. Sixty donors consisting of 14 (5.0%) from the group of 279 donors in eGFR ≥ 60 mL/min/1.73 m2 , and 46 (44.2%) from the group of 104 donors in eGFR < 60 mL/min/1.73 m2 had eGFR < 60 mL/min/1.73 m2 at postoperative year 1 ( P < 0.001). Conclusions: Increased age, male sex, higher BMI, and decreased preoperative eGFR were risk factors for decreased renal function after hand-assisted laparoscopic donor nephrectomy by a single experienced surgeon. These results provide important evidence for the safe perioperative management of living renal donors., Competing Interests: Conflict of interests: The authors stated that there are no conflicts of interest regarding the publication of this article.- Published
- 2017
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44. Change in pulse transit time in the lower extremity after lumbar sympathetic ganglion block: an early indicator of successful block.
- Author
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Joo EY, Kong YG, Lee J, Cho HS, Kim SH, and Suh JH
- Subjects
- Adult, Aged, Electrocardiography, Female, Ganglia, Sympathetic physiopathology, Humans, Lower Extremity diagnostic imaging, Lower Extremity innervation, Lower Extremity physiopathology, Lumbosacral Region innervation, Male, Middle Aged, Neuralgia diagnostic imaging, Neuralgia physiopathology, Oximetry, Plethysmography, Pulse Wave Analysis instrumentation, ROC Curve, Retrospective Studies, Temperature, Treatment Outcome, Anesthetics, Local, Autonomic Nerve Block, Ganglia, Sympathetic diagnostic imaging, Neuralgia therapy, Pulse Wave Analysis methods
- Abstract
Objective To investigate the change in pulse transit time (PTT)-time between the electrocardiographic R wave and the highest point of the corresponding plethysmographic wave-after lumbar sympathetic ganglion block (LSGB) and evaluate PTT as an indicator of successful LSGB. Methods Sixteen cases of sympathetically mediated lower extremity neuropathic pain treated with LSGB were studied. Correlations between the changes in PTT and temperature were used to identify the cutoff point indicating successful LSGB. Results PTT rate of change at 5 min relative to the baseline PTT (dPTT5/PTT0) significantly correlated positively with the temperature change at 20 min (correlation coefficient 0.734). The dPTT5/PTT0 ratios of the Success and Failure groups were 6.46 ± 2.81% and 2.77 ± 1.72%, respectively. The dPTT5/PTT0 cutoff indicating successful LSGB, based on receiver operating characteristic curve analysis, was 4.23%. Conclusion PTT measurement 5 min after local anesthetic injection was an early, objective indicator of successful or failed LSGB.
- Published
- 2017
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45. [Expression and significance of polymeric immunoglobulin receptor in nasal polyps].
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Zhang QP, Xiang R, Xu Y, Deng ZF, Kong YG, Chen SM, and Tao ZZ
- Subjects
- Eosinophils immunology, Eosinophils metabolism, Humans, Nasal Mucosa immunology, Nasal Mucosa metabolism, Nasal Polyps complications, Real-Time Polymerase Chain Reaction, Sinusitis complications, Sinusitis metabolism, Nasal Polyps immunology, Receptors, Cell Surface metabolism, Receptors, Polymeric Immunoglobulin metabolism, Sinusitis immunology
- Abstract
Objective: To explore the expression of polymeric immunoglobulin receptor in nasal polyps of patients with chronic rhinosinusitis with nasal polyps, and to investigateits relationship with the pathogenesis of nasal polyps. Method: Thirty-six specimens of nasal polyps were harvested patients were selected for the control group who had operation of nasal septal construction in the corresponding time period. The pIgR and IgA expression in nasal polyps and normal nasal inferior turbinate mucosa were detected by immunohistochemistry,and the real-time reverse transcription(RT-PCR) were used to detect the level of pIgR,IgA,RORc and Foxp3 mRNA expression in nasal polyps and normal nasal inferior turbinate mucosa. The association between pIgR mRNA and their association with the number of EOS,RORc mRNA,Foxp3 mRNA were analyzed,respectively. Result: The expression of pIgR in the nasal polyps was significantly lowerer than that in control group, and the result was statistically significant( P <0.05);Compared with nasal polyps with no eosinophils, the expression levels of pIgR in the nasal polyps with eosinophils was lower\, and the result was statistically significant( P <0.05).The expression of IgA in the nasal polyps was significantly higherthan that in control , and the result was statistically significant( P <0.05).Compared with control, the mRNA expression of pIgR and Foxp3 in the nasal polyps were significantly lower,while the expression levels of IgA mRNA and Foxp3 mRNA in the nasal polyps was significantly higher compared to controls, and the result was statistically significant( P <0.05).In nasal polyps ,pIgR mRNA expression was correlated with RORc mRNA ( P <0.05, r =-0.79),and there was no correlation between pIgR mRNA and Foxp3 mRNA( P >0.05,r=0.36). Conclusion: It was proved that pIgR down-regulation play an important role in the development of nasal polyps.., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Editorial Department of Journal of Clinical Otorhinolaryngology Head and Neck Surgery.)
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- 2017
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46. Coronary Computed Tomography Angiography in Combination with Coronary Artery Calcium Scoring for the Preoperative Cardiac Evaluation of Liver Transplant Recipients.
- Author
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Choi JM, Kong YG, Kang JW, and Kim YK
- Subjects
- Humans, Preoperative Care, Calcium metabolism, Computed Tomography Angiography methods, Coronary Vessels metabolism, Heart diagnostic imaging, Liver Transplantation
- Abstract
Liver transplantation is the best treatment option for early-stage hepatocellular carcinoma, liver cirrhosis, fulminant liver failure, and end-stage liver diseases. Even though advances in surgical techniques and perioperative care have improved postoperative outcomes, perioperative cardiovascular complications are a leading cause of postoperative morbidity and mortality following liver transplantation. Ischemic coronary artery disease (CAD) and cardiomyopathy are the most common cardiovascular diseases and could be negative predictors of postoperative outcomes in liver transplant recipients. Therefore, comprehensive cardiovascular evaluations are required to assess perioperative risks and prevent concomitant cardiovascular complications that would preclude good outcomes in liver transplant recipients. The two major types of cardiac computed tomography are the coronary artery calcium score (CACS) and coronary computed tomography angiography (CCTA). CCTA in combination with the CACS is a validated noninvasive alternative to coronary angiography for diagnosing and grading the severity of CAD. A CACS > 400 is associated with significant CAD and a known important predictor of posttransplant cardiovascular complications in liver transplant recipients. In this review article, we discuss the usefulness, advantages, and disadvantages of CCTA combined with CACS as a noninvasive diagnostic tool for preoperative cardiac evaluation and for maximizing the perioperative outcomes of liver transplant recipients., Competing Interests: The authors declare no competing interests regarding the publication of this paper.
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- 2017
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47. Comparison of postoperative acute kidney injury between ileal conduit and neobladder urinary diversions after radical cystectomy: A propensity score matching analysis.
- Author
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Joung KW, Kong YG, Yoon SH, Kim YJ, Hwang JH, Hong B, and Kim YK
- Subjects
- Aged, Female, Humans, Male, Middle Aged, Propensity Score, Retrospective Studies, Acute Kidney Injury etiology, Cystectomy adverse effects, Postoperative Complications etiology, Surgically-Created Structures adverse effects, Urinary Bladder surgery, Urinary Diversion adverse effects
- Abstract
Ileal conduit and neobladder urinary diversions are frequently performed after radical cystectomy. However, complications after radical cystectomy may be different according to the type of urinary diversion. Acute kidney injury (AKI) is a common complication after surgery and increases costs, morbidity, and mortality of hospitalized patients. This study was performed to compare the incidence of postoperative AKI between ileal conduit and neobladder urinary diversions after radical cystectomy.All consecutive patients who underwent radical cystectomy in 2004 to 2014 in a single tertiary care center were identified. The patients were divided into the ileal conduit and ileal neobladder groups. Preoperative variables, including demographics, cancer-related data and laboratory values, as well as intraoperative data and postoperative outcomes, including AKI, intensive care unit admission rate, and the duration of hospital stay, were evaluated between the groups. Postoperative AKI was defined according to the Kidney Disease: Improving Global Outcome criteria. Propensity score matching analysis was performed to reduce the influence of possible confounding variables and adjust for intergroup differences.After performing 1:1 propensity score matching, the ileal conduit and ileal neobladder groups each included 101 patients. The overall incidence of AKI after radical cystectomy was 30.7% (62 out of 202) and the incidences did not significantly differ between the groups (27 [26.7%], ileal conduit group vs 35 [34.7%], ileal neobladder group, P = 0.268). Intraoperative data, intensive care unit admission rate, and the duration of hospital stay were not significantly different between the groups.Postoperative AKI did not significantly differ between ileal conduit and neobladder urinary diversions after radical cystectomy. This finding provides additional information useful for appropriate selection of the urinary diversion type in conjunction with radical cystectomy., Competing Interests: The authors have no funding and conflicts of interest to disclose.
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- 2016
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48. Risk factors for pulmonary complications after percutaneous nephrolithotomy: A retrospective observational analysis.
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Yu J, Choi JM, Lee J, Kwon K, Kong YG, Seo H, Hwang JH, Park HK, and Kim YK
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- Adult, Aged, Body Mass Index, Critical Care statistics & numerical data, Erythrocyte Transfusion, Female, Humans, Length of Stay statistics & numerical data, Male, Middle Aged, Nephrostomy, Percutaneous methods, Retrospective Studies, Risk Factors, Lung Diseases etiology, Nephrostomy, Percutaneous adverse effects, Postoperative Complications etiology
- Abstract
Although percutaneous nephrolithotomy is minimally invasive, it is associated with several complications, including extravasation of fluid and urine, the need for a blood transfusion, and septicemia. However, little is known about pulmonary complications after this procedure. Therefore, we aimed to evaluate the risk factors for and outcomes of pulmonary complications after percutaneous nephrolithotomy.All consecutive patients who underwent percutaneous nephrolithotomy between 2001 and 2014 were identified and divided into group A (no clinically significant pulmonary complications) and group B (clinically significant pulmonary complications). Preoperative and intraoperative variables and postoperative outcomes were evaluated. Independent risk factors for postoperative pulmonary complications were evaluated by univariate and multivariate logistic regression analyses.The study included 560 patients: 378 (67.5%) in group A and 182 (32.5%) in group B. Multivariate logistic regression analysis revealed that the independent risk factors for pulmonary complications after percutaneous nephrolithotomy were a higher body mass index (odds ratio = 1.062, P = 0.026), intraoperative red blood cell transfusion (odds ratio = 2.984, P = 0.012), and an intercostal surgical approach (odds ratio = 3.046, P < 0.001). Furthermore, the duration of hospital stay was significantly longer (8.4 ± 4.3 days vs 7.6 ± 3.4 days, P = 0.010) and the intensive care unit admission rate was significantly higher [13 (7.1%) vs 1 (0.3%), P < 0.001] in group B than in group A.Risk factors for pulmonary complications after percutaneous nephrolithotomy were a higher body mass index, intraoperative red blood cell transfusion, and an intercostal surgical approach. Postoperative pulmonary complications were associated with poor outcomes. These results may provide useful information for the perioperative management of pulmonary complications after percutaneous nephrolithotomy., Competing Interests: The authors have no funding and conflicts of interest to disclose.
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- 2016
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49. Effect of Epidural Steroid Injection on Bone Mineral Density in Postmenopausal Women According to Antiosteoporotic Medication Use.
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Kim YU, Karm MH, Cheong Y, Lee J, Kong YG, Kim SH, and Suh JH
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- Aged, Bone Density Conservation Agents therapeutic use, Female, Humans, Lumbar Vertebrae, Middle Aged, Postmenopause, Retrospective Studies, Bone Density, Osteoporosis, Postmenopausal drug therapy
- Abstract
Background: No studies to date have compared bone mineral density (BMD) changes after epidural steroid injection (ESI) between postmenopausal patients taking antiosteoporotic medication and those who are not., Objective: The aim of the present study was to analyze the relationship between ESI and BMD changes in postmenopausal patients according to antiosteoporotic medication use., Study Design: Retrospective analysis., Setting: Department of Anesthesiology and Pain Medicine at Asan Medical Center, Korea., Methods: We retrospectively analyzed postmenopausal women who underwent ESI using dexamethasone. All women had received a diagnosis of lumbar spinal stenosis and their BMD had been measured before and after treatment. BMD was evaluated by dual-energy x-ray absorptiometry at the lumbar spine, femoral neck, femoral trochanter, and total femur, and was recorded as absolute g/cm2 and T-scores. A total of 126 patients were included in the final analysis. ESI patients were grouped as follows: group 1 (n = 74) ESI patients who took antiosteoporotic medication; group 2 (n = 52) ESI patients who did not take antiosteoporotic medication., Results: In group 1, there were no significant differences between baseline and post-treatment BMD absolute values (g/cm2) in the lumbar spine, femoral neck, femoral trochanter, and total femur. In group 2, significant changes in the post-treatment BMD absolute values (g/cm2) from baseline were observed in the femoral neck (-1.48 ± 3.84%), femoral trochanter (-2.80 ± 7.50%), and total femur (-2.23 ± 4.52%), but not in the lumbar spine (-2.23 ± 4.52%)., Limitations: This study contained a small sample size, no control group, and no long-term follow-up of the BMD changes after ESI., Conclusions: Our data provide new evidence indicating that ESI causes BMD changes in postmenopausal women who do not take antiosteoporotic medication. Thus, we recommend that prophylactic antiosteoporotic treatment be considered for postmenopausal women who require ESI treatment.
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- 2016
50. Pulse Transit Time as a Predictor of the Efficacy of a Celiac Plexus Block in Patients With Chronic Intractable Abdominal Pain.
- Author
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Kim YU, Kim DH, Cheong Y, Kong YG, Lee J, Park SK, Karm MH, and Suh JH
- Subjects
- Abdominal Pain etiology, Adult, Aged, Aged, 80 and over, Analysis of Variance, Electrocardiography, Female, Functional Laterality, Humans, Male, Middle Aged, Neoplasms complications, Pain Measurement, Predictive Value of Tests, ROC Curve, Time Factors, Young Adult, Abdominal Pain therapy, Celiac Plexus physiology, Nerve Block methods, Pulse Wave Analysis
- Abstract
Objective: There is no well-defined predictor of satisfactory pain relief after celiac plexus block (CPB) at the early stage of treatment. This study evaluated whether measurement of the electrocardiographic R-wave and the arrival time of the pulses at the toe pulse transit time (E-T PTT) can be an early predictor of pain response and success of CPB in patients with chronic intractable visceral pain., Methods: Twelve patients aged between 20 and 80 years who underwent CPB for treatment of chronic intractable cancer-related abdominal pain were included. A successful CPB was determined as a >50% decrease on the numerical rating scale measured 24 hours after the procedure. The E-T PTT at baseline and at 5, 10, 20, and 30 minutes after the injection of local anesthetic was measured as the time between the R-wave on the electrocardiogram and the peak point of the corresponding plethysmogram wave from the ipsilateral great toe. The change in the E-T PTT that was predictive of a successful CPB was analyzed using receiver operating characteristic curve analysis., Results: A CPB was successful in 9 of 12 cases; the dE-T PTT5/E-T PTT0 of the success group was 6.84%±5.04% versus 0.72%±0.78% in the failure group (P=0.021). The mean E-T PTTx differed significantly between timepoints (F=9.313, P=0.014) and between the success and failure groups (P<0.01). The best value of dE-T PTT5/E-T PTT0 indicating a successful CPB, estimated by receiver operating characteristic curve analysis, was 2.30% (sensitivity 88.9%, specificity 100%). The area under the curve was 96% (95% confidence interval, 85.7%-100%)., Conclusions: Prolongation of E-T PTT at 5 minutes after CPB correlates closely with a significant analgesic effect.
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- 2016
- Full Text
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