412 results on '"Xu, K"'
Search Results
2. Sensitivity of urinary pathogens for patients discharged from the emergency department compared with the hospital antibiogram
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Carlsen, Sean, Krall, Scott P., Xu, K. Tom, Tomanec, Alainya, Farias, Daylon, and Richman, Peter
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- 2019
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3. CT imaging history for patients presenting to the ED with renal colic--evidence from a multi-hospital database
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Schmid, Emily, Leeson, Kimberly, Xu, K. Tom, Richman, Peter, Nwosu, Crystal, and Carrasco, Lynn
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- 2019
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4. Prior CT imaging history for patients who undergo whole-body CT for acute traumatic injury and are discharged home from the emergency department
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Matthews, Mary, Richman, Peter, Krall, Scott, Leeson, Kimberly, Xu, K Tom, Gest, Albert L, and Blow, Osbert
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- 2018
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5. Clinical analysis of Krukenberg tumours in patients with colorectal cancer--a review of 57 cases.
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Xu, K. Y., Gao, H., Lian, Z. J., Ding, L., Li, M., and Gu, J.
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COLON cancer prognosis , *COLON cancer treatment , *KRUKENBERG tumors , *GASTROINTESTINAL tumors , *ADENOCARCINOMA , *CYTOREDUCTIVE surgery - Abstract
Background: A Krukenberg tumour (KT) is defined as an ovarian metastasis from a gastrointestinal adenocarcinoma and suggests a terminal condition. This study aimed to identify the prognostic factors affecting the survival of patients with KTs of colorectal origin who receive cytoreductive surgery. Methods: Medical records of patients who had received cytoreductive surgery and had been pathologically diagnosed with KT of colorectal origin in two centres were reviewed. Information about the patients' clinicopathological features and follow-up visit were collected. Factors influencing patient survival were analysed. Results: Fifty-seven patients were included in this study. The median survival time was 35 months. Five-year overall survival was 25%. Patients who had recurrence 2 years after resection of the primary tumour, achieved complete cytoreduction, had metastases confined to the pelvis, had no lymph node involvement, and received systemic chemotherapy had a significantly longer median survival than those who had recurrence at the same time as resection of the primary tumour (P = 0.027), received incomplete cytoreduction (P < 0.001), had metastases beyond the pelvis (P < 0.001), had lymph node involvement (P = 0.011), and did not receive systemic chemotherapy (P = 0. 006) on log-rank test. Less extensive metastatic disease, achievement of complete cytoreduction, and use of systemic chemotherapy were significantly associated with improved prognosis on multivariate analysis. Conclusions: Cytoreductive surgery may confer survival benefits in patients with KTs of colorectal origin who attain complete cytoreduction and whose metastases are confined to the pelvis and when combined with active systemic chemotherapy. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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6. P20-19 LB. Extensive HLA-driven viral diversity following a single-source HIV-1 outbreak in rural China
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Dong, T., Zhang, Y., Xu, K., Yan, H., James, I., Peng, Y., Blais, M., Gaudieri, S., Chen, X., Lun, W., Wu, H., Qu, W., Zhao, C., Li, N., Mao, Y., Rostron, T., Mallal, S., Xu, X., McMichael, A., John, M., Rowland-Jones, S., Dong, T., Zhang, Y., Xu, K., Yan, H., James, I., Peng, Y., Blais, M., Gaudieri, S., Chen, X., Lun, W., Wu, H., Qu, W., Zhao, C., Li, N., Mao, Y., Rostron, T., Mallal, S., Xu, X., McMichael, A., John, M., and Rowland-Jones, S.
- Published
- 2009
7. Risk factors associated with preterm birth among singletons following assisted reproductive technology in Australia 2007-2009-a population-based retrospective study.
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Xu, Xu K., Wang, Yueping A., Zhuoyang Li, and Sullivan, Elizabeth A.
- Abstract
Background: Preterm birth, a leading cause of neonatal death, is more common in multiple births and thus there has being an increasing call for reducing multiple births in ART. However, few studies have compared risk factors for preterm births amongst ART and non-ART singleton birth mothers. Methods: A population-based study of 393,450 mothers, including 12,105 (3.1%) ART mothers, with singleton gestations born between 2007 and 2009 in 5 of the 8 jurisdictions in Australia. Univariable and multivariable logistic regression models were conducted to evaluate socio-demographic, medical and pregnancy factors associated with preterm births in contrasting ART and non-ART mothers. Results: Ten percent of singleton births to ART mothers were preterm compared to 6.8% for non-ART mothers (P < 0.01). Compared with non-ART mothers, ART mothers were older (mean 34.0 vs 29.7 yr respectively), less socio-economically disadvantaged (12.4% in the lowest quintile vs 20.7%), less likely to be smokers (3.8% vs 19.4%), more likely to be first time mothers (primiparous 62.4% vs 40.5%), had more preexisting hypertension and complications during pregnancy. Irrespective of the mode of conception, preexisting medical and pregnancy complications of hypertension, diabetes and antepartum hemorrhages were consistently associated with preterm birth. In contrast, socio-demographic variables, namely young and old maternal age (<25 and >34), socioeconomic disadvantage (most disadvantaged quintile Odds Ratio (OR) 0.95, 95% Confidence Interval (CI): 0.77-1.17), smoking (OR 1.12, 95% CI: 0.79-1.61) and priminarity (OR 1.19, 95% CI: 1.05-1.35, AOR not significant) shown to be associated with elevated risk of preterm birth for non-ART mothers were not demonstrated for ART mothers, even after adjusting for potential confounders. Nonetheless, in multivariable analysis, the association between ART and the elevated risk for singleton preterm birth persisted after controlling for all included confounding medical, pregnancy and socio-economic factors (AOR 1.51, 95% CI: 1.42-1.61). Conclusions: Preterm birth rate is approximately one-and-a-half-fold higher in ART mothers than non-ART mothers albeit for singleton births after controlling for confounding factors. However, ART mothers were less subject to the adverse influence from socio-demographic factors than non-ART mothers. This has implications for counselling prospective parents. [ABSTRACT FROM AUTHOR]
- Published
- 2014
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8. Over-prescribing of antibiotics and imaging in the management of uncomplicated URIs in emergency departments.
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Tom Xu, K., Roberts, Daniel, Sulapas, Irvin, Martinez, Omar, Berk, Justin, and Baldwin, John
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ANTIBIOTICS , *EMERGENCY medical services , *RESPIRATORY infections , *HOSPITAL emergency services , *INFLAMMATION - Abstract
Background: Unnecessary use of resources for common illnesses has substantial effect on patient care and costs. Evidence-based guidelines do not recommend antibiotics or imaging for uncomplicated upper respiratory infections (URIs). The objective of the current study was to examine medical care providers' compliance with guidelines in treating uncomplicated URIs in emergency departments (EDs) in the US. Methods: Nationally representative data from the NHAMCS 2007 and 2008 were used. Uncomplicated URIs were identified through ICD-9 codes of nasopharyngitis, laryngitis, bronchitis, URI not otherwise specified and influenza involving upper respiratory tract. Exclusion criteria were concurrent comorbidities, follow-up visits, and age < 18 or >64 years. Most frequently prescribed classes of antibiotics were identified. Multivariate analyses were conducted to identify the factors associated with the prescribing of antibiotics and use of imaging studies. Results: In 2007 and 2008, there were 2.2 million adult uncomplicated URI visits without any other concurrent diagnoses in EDs in the US. Approximately 52% were given antibiotic prescriptions, over one-third of which were macrolides, and nearly half of the visits performed imaging studies. About 51% had a diagnosis of bronchitis, 35% URI NOS, 9% nasopharyngitis, laryngitis or influenza, and 4% multiple URI diagnoses. The diagnosis of bronchitis, fever at presentation, older ages, male gender, longer waiting time, and metropolitan areas were associated with a greater likelihood of prescribing antibiotics or imaging studies, controlling for confounding factors. Conclusion: Despite the recommendations and campaign efforts by the CDC and many medical associations, the prescribing of antibiotics in treating uncomplicated URIs in the EDs remains prevalent. Furthermore, overutilization of imaging studies is prevalent. Changes at levels of health care system and hospitals are needed to avoid unnecessary resource utilization. In addition, further patient education about antibiotic use in the community may greatly facilitate the transition out of an antibiotic-dependent consumer culture. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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9. College campus smoking policies and programs and students' smoking behaviors.
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Borders, Tyrone F., Xu, K. Tom, Bacchi, Donna, Cohen, Lee, and SoRelle-Miner, Danielle
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TOBACCO use , *UNIVERSITIES & colleges , *SMOKING cessation , *SURVEYS , *GOVERNMENT policy - Abstract
Background: Although tobacco use in the United States has declined over the past 20 years, cigarette use among college students remains high. Additional research is thus needed to determine how university tobacco control policies and preventive education programs affect college students' smoking behaviors. Methods: Approximately 13,000 undergraduate students at 12 universities or colleges in the state of Texas completed a web-based survey. College smoking policies were obtained from a survey of college administrators and from college websites. Logistic regression analyses were conducted to estimate the effects of individual smoking policies and programs on the odds of cigarette smoking. Results: Of the individual programs, only having a preventive education program on campus was associated with lower odds of smoking. The existence of smoking cessation programs and designated smoking areas were associated with higher odds of smoking. Policies governing the sale and distribution of cigarettes were insignificantly associated with smoking. Conclusion: Rather than focusing on policies restricting cigarette sales and use, college administrators should consider implementing or expanding tobacco prevention and education programs to further reduce student smoking rates. [ABSTRACT FROM AUTHOR]
- Published
- 2005
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10. Over-prescribing of antibiotics and imaging in the management of uncomplicated URIs in emergency departments.
- Author
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Xu, K Tom, Roberts, Daniel, Sulapas, Irvin, Martinez, Omar, Berk, Justin, and Baldwin, John
- Abstract
Background: Unnecessary use of resources for common illnesses has substantial effect on patient care and costs. Evidence-based guidelines do not recommend antibiotics or imaging for uncomplicated upper respiratory infections (URIs). The objective of the current study was to examine medical care providers' compliance with guidelines in treating uncomplicated URIs in emergency departments (EDs) in the US.Methods: Nationally representative data from the NHAMCS 2007 and 2008 were used. Uncomplicated URIs were identified through ICD-9 codes of nasopharyngitis, laryngitis, bronchitis, URI not otherwise specified and influenza involving upper respiratory tract. Exclusion criteria were concurrent comorbidities, follow-up visits, and age < 18 or >64 years. Most frequently prescribed classes of antibiotics were identified. Multivariate analyses were conducted to identify the factors associated with the prescribing of antibiotics and use of imaging studies.Results: In 2007 and 2008, there were 2.2 million adult uncomplicated URI visits without any other concurrent diagnoses in EDs in the US. Approximately 52% were given antibiotic prescriptions, over one-third of which were macrolides, and nearly half of the visits performed imaging studies. About 51% had a diagnosis of bronchitis, 35% URI NOS, 9% nasopharyngitis, laryngitis or influenza, and 4% multiple URI diagnoses. The diagnosis of bronchitis, fever at presentation, older ages, male gender, longer waiting time, and metropolitan areas were associated with a greater likelihood of prescribing antibiotics or imaging studies, controlling for confounding factors.Conclusion: Despite the recommendations and campaign efforts by the CDC and many medical associations, the prescribing of antibiotics in treating uncomplicated URIs in the EDs remains prevalent. Furthermore, overutilization of imaging studies is prevalent. Changes at levels of health care system and hospitals are needed to avoid unnecessary resource utilization. In addition, further patient education about antibiotic use in the community may greatly facilitate the transition out of an antibiotic-dependent consumer culture. [ABSTRACT FROM AUTHOR]- Published
- 2013
- Full Text
- View/download PDF
11. HLA allele distributions and associations in a cohort of LTNPs from China.
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Rai, Mohammad A., Hao, Stella Chun, Blais, Marie-Eve, Rostron, T., Zhang, Y., Xu, K. Y., Yan, H., McMichael, Andrew J., Dong, T., and Rowland-Jones, Sarah
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HLA histocompatibility antigens - Abstract
An abstract of the article "HLA allele distributions and associations in a cohort of LTNPs from China," by Mohammad A. Rai and colleagues is presented.
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- 2011
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12. TLR9 expression in glioma tissues correlated to glioma progression and the prognosis of GBM patients.
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Wang C, Cao S, Yan Y, Ying Q, Jiang T, Xu K, Wu A, Wang, Chao, Cao, Shouqiang, Yan, Ying, Ying, Qiao, Jiang, Tao, Xu, Ke, and Wu, Anhua
- Abstract
Background: Our study aims to evaluate the expression of TLR9 in glioma tissues, examine the association between TLR9 expression, clinicopathological variables, and glioma patient outcome, we further characterized the direct effects of TLR9 agonist CpG ODN upon the proliferation and invasion of glioma cells in vitro.Methods: RT-PCR and immunofluorescence were used to determine the expression of TLR9 in glioma cell lines and clinical glioma samples. Tissue microarry and immunohistochemistry were applied to evaluated TLR9 expression in 292 newly diagnosed glioma and 13 non-neoplastic brain tissues. We further investigated the effect of CpG ODN on the proliferation and invasion of glioma cells in vitro with MTT assays and matrigel transwell assay respectively.Results: RT-PCR showed that TLR9 expressed in all the glioma samples and glioma cell lines we examined. The tissue array analysis indicated that TLR9 expression is correlated with malignancy of glioma (p < 0.01). Multivariate Cox regression analysis revealed that TLR9 expression is an independent prognostic factor for PFS of GBM patients (P = 0.026). TLR9 agonist CpG ODN has no significant effect on glioma proliferation, but matrigel transwell analysis showed that TLR9 agonist CpG ODN can significantly enhance glioma invasion in vitro.Conclusions: Our data indicated that TLR9 expression increases according to the histopathological grade of glioma, and the TLR9 expression level is related to the PFS of GBM patients. In addition, our findings warrant caution in the directly injection of TLR9 agonist CpG ODN into glioma tissues for the glioma immunotherapy. [ABSTRACT FROM AUTHOR]- Published
- 2010
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13. Effect of additional free sustentaculum tali screw fixation through modified sinus tarsi approach on intra-articular calcaneal fractures.
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Sun Y, Gu Y, Xu K, Yi N, Zhao J, Zhang Y, and Jiang B
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- Humans, Male, Female, Adult, Middle Aged, Bone Plates, Treatment Outcome, Fractures, Bone surgery, Fractures, Bone diagnostic imaging, Follow-Up Studies, Young Adult, Retrospective Studies, Calcaneus injuries, Calcaneus surgery, Calcaneus diagnostic imaging, Fracture Fixation, Internal methods, Fracture Fixation, Internal instrumentation, Bone Screws, Intra-Articular Fractures surgery, Intra-Articular Fractures diagnostic imaging
- Abstract
Background: Calcaneal fractures are the most common type of tarsal fractures. The sustentaculum tali (ST) offers anatomical stability in calcaneal fractures, and recently, ST screws have been widely used in their treatment. This study aimed to investigate the clinical efficacy and value of ST screw fixation via a modified sinus tarsi approach (MSTA) for treating displaced intraarticular calcaneal fractures (DIACFs)., Methods: This study enrolled 64 patients (64 feet): 32 patients in the calcaneal locking plate combined with the ST screw group (CLP-STS Group) and 32 patients in the simple calcaneal locking plate internal fixation group (CLP Group). The minimum follow-up duration was 18 months. Ankle function was evaluated using VAS, AOFAS, and Short Form-36 scores. Imaging evaluation included the Böhler angle, Gissane angle, length, height, and width of the calcaneus, and the Böhler angle in both groups 1 year after surgery., Results: Functional evaluation revealed that postoperative AOFAS and VAS scores in the CLP-STS Group were significantly better than those in the CLP Group. After surgery, the Böhler angle, Gissane angle, and length, height, and width of the calcaneus were significantly corrected compared to the preoperative values; however, the difference in these indicators between the two groups was not significant. Nevertheless, at the 1-year postoperative follow-up, the calcaneal Böhler angle loss in the CLP-STS Group was significantly better than that in the CLP Group., Conclusion: Compared to simple calcaneal locking plate internal fixation, combining the plate with the additionally free ST screw can resolve the limited intraoperative exposure of MSTA, reduce postoperative foot pain in patients, and improve clinical efficacy., (© 2024. The Author(s).)
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- 2024
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14. Robot-assisted technique can achieve accurate screw placement in four-corner fusion and reduce operative difficulty: a cadaver study.
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Wang Z, Liu B, Yi Z, Xu K, Jia S, Wang Q, and Yin Y
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- Humans, Arthrodesis methods, Arthrodesis instrumentation, Feasibility Studies, Female, Male, Wrist Joint surgery, Wrist Joint diagnostic imaging, Bone Screws, Cadaver, Robotic Surgical Procedures methods, Robotic Surgical Procedures instrumentation
- Abstract
Background: The purpose of this study is to explore the feasibility and accuracy of a robot-assisted technique in four-corner fusion compared with traditional freehand operation., Methods: Twenty cadaver specimens were randomly assigned to the robot-assisted group and freehand groups. Three screws were placed percutaneously to fix the capitate-lunate joint, lunate-triquetrum joint, and triquetrum-hamate-capitate joint in each specimen by robot-assisted or freehand technique. The offset between the actual and planned screw positions was determined by merging the images of intraoperative and postoperative CT scans in the robot-assisted group. The centrality of the screw, time-consuming, drilling attempts, and radiation exposure were compared between the two groups., Results: The mean offset between the actual and planned screw position was 1.09 (SD: 0.56) mm. The offset at the start point of the screw was significantly lower than that at the endpoint. There was no significant difference in the centrality of the screws, surgical time between the two groups. The number of drilling attempts and the radiation dose received by surgeons were significantly lower in the robot-assisted group., Conclusions: Although there was no significant difference in screw centrality between the two groups, the slight offset between the actual and planned screw positions confirmed the feasibility of the robot-assisted technique in four-corner fusion. The robot-assisted technique has advantages in reducing the difficulty of surgery and protecting the surgeon from exposure to large doses of radiation., (© 2024. The Author(s).)
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- 2024
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15. Efficacy and toxicity of lurbinectedin in subsequent systemic therapy of extensive-stage small cell lung cancer: a meta-analysis.
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Tang J, Wang T, Wu H, Bao X, Xu K, and Ren T
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- Humans, Antineoplastic Agents therapeutic use, Antineoplastic Agents adverse effects, Treatment Outcome, Progression-Free Survival, Neoplasm Staging, Carbolines adverse effects, Carbolines therapeutic use, Carbolines administration & dosage, Lung Neoplasms drug therapy, Lung Neoplasms pathology, Lung Neoplasms mortality, Small Cell Lung Carcinoma drug therapy, Small Cell Lung Carcinoma pathology, Small Cell Lung Carcinoma mortality, Heterocyclic Compounds, 4 or More Rings therapeutic use, Heterocyclic Compounds, 4 or More Rings adverse effects, Heterocyclic Compounds, 4 or More Rings administration & dosage
- Abstract
Objective: This study aimed to systematically analyze the efficacy and toxicity of lurbinectedin as a second-line or subsequent treatment for extensive-stage small cell lung cancer (ES-SCLC)., Methods: Candidate studies were identified in PubMed, Embase, Cochrane Library, ClinicalTrials.gov, CNKI, and Wanfang databases up to 1 May 2024. Objective remission rate (ORR), disease control rate (DCR), duration of response (DOR), progression-free survival (PFS), overall survival (OS), and adverse events (AEs) were extracted, respectively. The efficacy and toxicity of lurbinectedin in ES-SCLC were analyzed by meta-analysis., Results: Six eligible prospective studies were included in this meta-analysis, including 536 patients with ES-SCLC who received second-line or subsequent treatment. In pooled analysis, the ORR of lurbinectedin was 35% (95% confidence interval [CI] 29-41), DCR was 67% (95%CI 58-76), DOR was 5.33 months (95%CI 4.51-6.16), PFS was 3.38 months (95%CI 2.59-4.17), and OS was 7.49 months (95%CI 5.11-9.87). The incidence of AEs and severe adverse events (SAEs) was 92% (95%CI 78-100) and 37% (95%CI 19-57), respectively. The most common AEs were leukopenia, neutropenia, anemia, and thrombocytopenia, with incidences of 81% (68-91), 74% (57-88), 73% (35-98) and 57% (46-68), respectively., Conclusion: As a promising alternative for second-line treatment for ES-SCLC, lurbinectedin has a certain level of efficacy and a favorable safety profile. The integration of lurbinectedin with other therapeutic modalities presents an emerging area warranting further investigation., (© 2024. The Author(s).)
- Published
- 2024
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16. A multi-trait epigenome-wide association study identified DNA methylation signature of inflammation among men with HIV.
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Chen J, Hui Q, Titanji BK, So-Armah K, Freiberg M, Justice AC, Xu K, Zhu X, Gwinn M, Marconi VC, and Sun YV
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- Humans, Male, Middle Aged, Epigenesis, Genetic genetics, Lipopolysaccharide Receptors genetics, Interleukin-6 genetics, Cohort Studies, STAT1 Transcription Factor genetics, Veterans statistics & numerical data, Adult, DNA Methylation genetics, HIV Infections genetics, Genome-Wide Association Study methods, Inflammation genetics, Epigenome genetics
- Abstract
Inflammation underlies many conditions causing excess morbidity and mortality among people with HIV (PWH). A handful of single-trait epigenome-wide association studies (EWAS) have suggested that inflammation is associated with DNA methylation (DNAm) among PWH. Multi-trait EWAS may further improve statistical power and reveal pathways in common between different inflammatory markers. We conducted single-trait EWAS of three inflammatory markers (soluble CD14, D-dimers and interleukin-6) in the Veterans Aging Cohort Study (n = 920). The study population was all male PWH with an average age of 51 years, and 82.3% self-reported as Black. We then applied two multi-trait EWAS methods-CPASSOC and OmniTest-to combine single-trait EWAS results. CPASSOC and OmniTest identified 189 and 157 inflammation-associated DNAm sites, respectively, of which 112 overlapped. Among the identified sites, 56% were not significant in any single-trait EWAS. Top sites were mapped to inflammation-related genes including IFITM1, PARP9 and STAT1. These genes were significantly enriched in pathways such as "type I interferon signaling" and "immune response to virus." We demonstrate that multi-trait EWAS can improve the discovery of inflammation-associated DNAm sites, genes and pathways. These DNAm sites might hold the key to addressing persistent inflammation in PWH., (© 2024. The Author(s).)
- Published
- 2024
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17. The diagnosis value of dual-energy computed tomography (DECT) multi-parameter imaging in lung adenocarcinoma and squamous cell carcinoma.
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Zheng X, Tian H, Li W, Li J, Xu K, Jin C, and Pang Y
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- Humans, Retrospective Studies, Male, Middle Aged, Female, Aged, ROC Curve, Radiography, Dual-Energy Scanned Projection methods, Sensitivity and Specificity, Adult, Aged, 80 and over, Lung Neoplasms diagnostic imaging, Lung Neoplasms pathology, Carcinoma, Squamous Cell diagnostic imaging, Carcinoma, Squamous Cell pathology, Adenocarcinoma of Lung diagnostic imaging, Adenocarcinoma of Lung pathology, Tomography, X-Ray Computed methods
- Abstract
Background: Lung cancer continues to pose a serious risk to human health. With a high mortality rate, non-small cell lung cancer (NSCLC) is the major type of lung cancer, making up to 85% of all cases of lung cancer. Lung adenocarcinoma (AC), and lung squamous cell carcinoma (SC) are the two primary types of NSCLC. Determining the pathological type of NSCLC is important in establishing the most effective treatment method. Dual-energy computed tomography (DECT) multi-parameter imaging is an imaging technology that provides accurate and reliable disease diagnosis, and its uses are utilized for the combined diagnostic efficacy of AC and SC. The purpose of this study was to investigate the diagnostic value of spectral parameters of DECT in efficacy to AC and SC, and their combined diagnostic efficacy was also analyzed., Methods: We conducted a retrospective analysis of clinical and imaging data for 36 patients diagnosed with SC and 35 patients with AC. These patients underwent preoperative DECT chest scans, encompassing both arterial and venous phases, at our hospital from December 2020 to April 2022. The tumor diameter, water concentration (WC), iodine concentration (IC), normalized iodine concentration (NIC), Z effective (Zeff), and slope of the curve (K) in lesions were evaluated during two scanning phases in the two separate pathological types of lung cancers. The differences in parameters between these two types of lung cancers were statistically analyzed. In addition, receiver operating characteristic (ROC) curves were performed for these parameters to distinguish between SC and AC., Results: In a univariate analysis involving 71 lung cancer patients, the results from Zeff, IC, NIC, and K from the AC's arterial and venous phase images were more elevated than those from the SC (P < 0.05). In contrast, the WC results were lower than those from SC (P < 0.05). The area under the ROC curve (AUC) for multi-parameter joint prediction typing was 0.831, with a corresponding sensitivity of 63.9% and specificity of 94.3%., Conclusion: It is possible to distinguish between central SC and AC using the spectrum characteristics of DECT-enhanced scanning (Zeff, IC, NIC, K, WC, and tumor diameter). Diagnostic effectiveness can be greatly improved when multiple variables are included., (© 2024. The Author(s).)
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- 2024
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18. Asiatic acid inhibits HBV cccDNA transcription by promoting HBx degradation.
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Li R, Wang C, Xu K, Zhan Z, He S, Ren J, Li F, Tao N, Li Z, Yang Z, and Yu H
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- Animals, Mice, Humans, Antiviral Agents pharmacology, DNA, Viral genetics, Transcription, Genetic drug effects, Disease Models, Animal, Virus Replication drug effects, Proteolysis drug effects, Hepatitis B virology, Hepatitis B drug therapy, Hepatitis B virus drug effects, Hepatitis B virus genetics, Hepatitis B virus physiology, Pentacyclic Triterpenes pharmacology, Viral Regulatory and Accessory Proteins metabolism, Viral Regulatory and Accessory Proteins genetics, Trans-Activators metabolism, Trans-Activators genetics, DNA, Circular genetics, DNA, Circular metabolism
- Abstract
Background: Hepatitis B virus (HBV) infection is a persistent global public health problem, and curing for chronic hepatitis B (CHB) through the application of existing antiviral drugs is beset by numerous challenges. The viral protein HBx is a critical regulatory factor in the life cycle of HBV. Targeting HBx is a promising possibility for the development of novel therapeutic strategies., Methods: The Nano-Glo
® HiBiT Lysis Detection System was used to screen the herbal monomer compound library for compounds that inhibit HBx expression. Western blotting was used to examine proteins expression. Southern blotting or Northern blotting were used to detect HBV DNA or HBV RNA. ELISA was performed to detect the HBsAg level. The effect of asiatic acid on HBV in vivo was investigated by using recombinant cccDNA mouse model., Results: Asiatic acid, an extract of Centella asiatica, significantly reduced the HBx level. Mechanistic studies demonstrated that asiatic acid may promote the degradation of HBx in an autophagy pathway-dependent manner. Subsequently, asiatic acid was found to reduce the amount of HBx bound to covalently closed circular DNA (cccDNA) microchromosomes, and repressive chromatin modifications then occurred, ultimately inhibiting cccDNA transcriptional activity. Moreover, in HBV-infected cells and a mouse model of persistent HBV infection, asiatic acid exhibited potent anti-HBV activity, as evidenced by decreased levels of HBV RNAs, HBV DNA and HBsAg., Conclusions: Asiatic acid was identified as a compound that targets HBx, revealing its potential for application as an anti-HBV agent., (© 2024. The Author(s).)- Published
- 2024
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19. Photosynthetic characteristics and genetic mapping of a yellow-green leaf mutant jym165 in soybean.
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Zhao Y, Zhu M, Gao H, Zhou Y, Yao W, Zhao Y, Zhang W, Feng C, Li Y, Jin Y, and Xu K
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- Chlorophyll metabolism, Phenotype, Starch metabolism, Chloroplasts metabolism, Photosynthesis genetics, Glycine max genetics, Glycine max growth & development, Glycine max physiology, Glycine max metabolism, Plant Leaves genetics, Plant Leaves growth & development, Plant Leaves metabolism, Plant Leaves physiology, Mutation, Chromosome Mapping
- Abstract
Background: Leaves are important sites for photosynthesis and can convert inorganic substances into organic matter. Photosynthetic performance is an important factor affecting crop yield. Leaf colour is closely related to photosynthesis, and leaf colour mutants are considered an ideal material for studying photosynthesis., Results: We obtained a yellow-green leaf mutant jym165, using ethyl methane sulfonate (EMS) mutagenesis. Physiological and biochemical analyses indicated that the contents of chlorophyll a, chlorophyll b, carotenoids, and total chlorophyll in the jym165 mutant decreased significantly compared with those in Jiyu47 (JY47). The abnormal chloroplast development of jym165 led to a decrease in net photosynthetic rate and starch content compared with that of JY47. However, quality traits analysis showed that the sum of oil and protein contents in jym165 was higher than that in JY47. In addition, the regional yield (seed spacing: 5 cm) of jym165 increased by 2.42% compared with that of JY47 under high planting density. Comparative transcriptome analysis showed that the yellow-green leaf phenotype was closely related to photosynthesis and starch and sugar metabolism pathways. Genetic analysis suggests that the yellow-green leaf phenotype is controlled by a single recessive nuclear gene. Using Mutmap sequencing, the candidate regions related of leaf colour was narrowed to 3.44 Mb on Chr 10., Conclusions: Abnormal chloroplast development in yellow-green mutants leads to a decrease in the photosynthetic pigment content and net photosynthetic rate, which affects the soybean photosynthesis pathway and starch and sugar metabolism pathways. Moreover, it has the potentiality to increase soybean yield under dense planting conditions. This study provides a useful reference for studying the molecular mechanisms underlying photosynthesis in soybean., (© 2024. The Author(s).)
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- 2024
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20. Tumor-microenvironment-on-a-chip: the construction and application.
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Xu H, Wen J, Yang J, Zhou S, Li Y, Xu K, Li W, and Li S
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- Humans, Animals, Tumor Microenvironment, Lab-On-A-Chip Devices, Neoplasms pathology, Neoplasms metabolism
- Abstract
Currently, despite the vast amounts of time and money invested in cancer treatment, cancer remains one of the primary threats to human life. The primary factor contributing to the low treatment efficacy is cancer heterogeneity. The unclear molecular mechanisms underlying tumorigenesis, coupled with the complexity of human physiology, and the inability of animal models to accurately replicate the human tumor microenvironment, pose significant hurdles in the development of novel cancer therapies. Tumor-microenvironment-on-chip (TMOC) represents a research platform that integrates three-dimensional cell culture with microfluidic systems, simulating the essential components and physiological traits of the in vivo tumor microenvironment. It offers a dynamic setting within the chip system to study tumor progression, potentially heralding a breakthrough in cancer research. In this review, we will summarize the current advancements in this platform, encompassing various types of TMOCs and their applications in different types of cancer. From our perspective, the TMOC platform necessitates enhanced integration with tissue engineering techniques and microphysiological environments before it can evolve into a more refined preclinical model for cancer research., (© 2024. The Author(s).)
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- 2024
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21. Epidemiological characteristics of influenza outbreaks in schools in Jiangsu Province, China, 2020-2023 post-COVID-19 pandemic.
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Peng JL, Xu K, Tong Y, Wang SZ, Huang HD, Bao CJ, and Dai QG
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- Humans, China epidemiology, Child, SARS-CoV-2, Pandemics, Adolescent, Sentinel Surveillance, Female, Male, Influenza, Human epidemiology, Schools statistics & numerical data, Disease Outbreaks, COVID-19 epidemiology, Influenza A Virus, H1N1 Subtype isolation & purification, Influenza A Virus, H3N2 Subtype isolation & purification
- Abstract
Background: This study aimed to analyze the epidemic characteristics and influencing factors of school influenza outbreaks in Jiangsu Province, China from 2020 to 2023,following the COVID-19 pandemic, to inform prevention and control strategies., Methods: Data on influenza-like illness(ILI) outbreaks from the Chinese Influenza Surveillance Information System and national-level influenza surveillance sentinel hospitals were analyzed. The temporal distribution, school type, virus strains, and outbreak scales were examined using descriptive statistics., Results: From 2020 to 2023, 1142 influenza outbreaks occurred in schools, with primary schools(ages 6 to 12) accounting for 71.80%. Most large outbreaks were caused by A(H1N1) and A(H3N2), responsible for 8.99% of total outbreaks. Outbreaks were predominantly reported in the pre-peak periods of B(Victoria) and A(H1N1) circulation, accounting for 86.31% and 92.32% of their respective total outbreaks. No concurrent influenza and COVID-19 outbreaks were observed during the study period., Conclusion: Primary and secondary schools are high-risk settings for influenza outbreaks. A(H3N2) shows higher adaptability and is more likely to co-circulate with other subtypes/lineages, especially A(H1N1), leading to larger outbreaks. B(Victoria)-caused outbreaks are more frequent but smaller in scale. School influenza outbreaks are more likely to occur during the early stages of seasonal peaks, particularly for B(Victoria) and A(H1N1). This suggests that influenza outbreaks in schools may play a crucial role in seeding and accelerating the spread of the virus within the broader community., (© 2024. The Author(s).)
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- 2024
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22. Psychometric evaluation of the Chinese version of the hospital-acquired insomnia scale (HAIS) and analysis of influencing factors.
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Zhang F, Wang X, Zhang C, Xu K, Xu H, Chen Q, and Liang C
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- Humans, Male, Female, Middle Aged, Reproducibility of Results, Adult, China, Surveys and Questionnaires standards, Factor Analysis, Statistical, Aged, Hospitalization, Psychometrics, Sleep Initiation and Maintenance Disorders diagnosis
- Abstract
Background: Adequate sleep and rest are essential for patient recovery; however, lack of sleep has become a common problem faced by Chinese patients during hospital stays. Reduced sleep is often associated with a higher risk of disease progression and is strongly associated with increased hospital stay. However, there is no specific tool in China to assess short-term insomnia caused by hospitalization. This study aimed to translate the Hospital-acquired Insomnia Scale (HAIS) into Chinese, test its applicability to Chinese inpatients through reliability and validity indicators, and investigate the potential influencing factors of hospital-acquired insomnia., Methods: Psychometric analysis from a sample of 679 hospitalized patients to whom the HAIS questionnaire was applied. The structural validity was assessed by exploratory factor analysis (EFA) and confirmatory factor analysis (CFA), and the content validity of the scale was assessed using the content validity index. Cronbach's alpha coefficient, split-half reliability and test-retest reliability were calculated to evaluate the internal consistency of the scale. Multiple stepwise linear regression analysis was conducted to determine the potential correlates of hospital-acquired insomnia., Results: EFA supported a four-factor structure with factor loadings for all dimensions greater than 0.40. CFA showed good indicators of model fit. The content validity index of the scale was 0.94. the Cronbach's alpha of the scale was 0.915, the split-half reliability coefficient was 0.819, and the retest reliability was 0.844. Gender, age, total hours of sleep during the night, medical insurance, length of hospital stay, perceived stress level, and perceptions about sleep explained 46.2% of the variance in hospital-acquired insomnia., Conclusion: The Chinese version of HAIS has good psychometric characteristics and is an effective instrument for evaluating hospital-acquired insomnia. In addition, hospital-acquired insomnia is more common in women, of younger age, less than 5 h of sleep a night, without medical insurance, stressed, and patients with more misconceptions about sleep., (© 2024. The Author(s).)
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- 2024
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23. Sequence comparison of the mitochondrial genomes of five caridean shrimps of the infraorder Caridea: phylogenetic implications and divergence time estimation.
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Sun Y, Liu W, Chen J, Li J, Ye Y, and Xu K
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- Animals, Codon Usage, RNA, Transfer genetics, Base Composition, Selection, Genetic, Genome, Mitochondrial, Phylogeny, Evolution, Molecular, Decapoda genetics, Decapoda classification
- Abstract
Background: The Caridea, affiliated with Malacostraca, Decapoda, and Pleocyemata, constitute one of the most significant shrimp groups. They are widely distributed across diverse aquatic habitats worldwide, enriching their evolutionary history. In recent years, considerable attention has been focused on the classification and systematic evolution of Caridea, yet controversies still exist regarding the phylogenetic relationships among families., Methods: Here, the complete mitochondrial genome (mitogenome) sequences of five caridean species, namely Heterocarpus sibogae, Procletes levicarina, Macrobrachium sp., Latreutes anoplonyx, and Atya gabonensis, were determined using second-generation high-throughput sequencing technology. The basic structural characteristics, nucleotide composition, amino acid content, and codon usage bias of their mitogenomes were analyzed. Selection pressure values of protein-coding genes (PCGs) in species within the families Pandalidae, Palaemonidae, and Atyidae were also computed. Phylogenetic trees based on the nucleotide and amino acid sequences of 13 PCGs from 103 caridean species were constructed, and divergence times for various families within Caridea were estimated., Results: The mitogenome of these five caridean species vary in length from 15,782 to 16,420 base pairs, encoding a total of 37 or 38 genes, including 13 PCGs, 2 rRNA genes, and 22 or 23 tRNA genes. Specifically, L. anoplonyx encodes an additional tRNA gene, bringing its total gene count to 38. The base composition of the mitogenomes of these five species exhibited a higher proportion of adenine-thymine (AT) bases. Six start codons and four stop codons were identified across the five species. Analysis of amino acid content and codon usage revealed variations among the five species. Analysis of selective pressure in Pandalidae, Palaemonidae, and Atyidae showed that the Ka/Ks values of PCGs in all three families were less than 1, indicating that purifying selection is influencing on their evolution. Phylogenetic analysis revealed that each family within Caridea is monophyletic. The results of gene rearrangement and phylogenetic analysis demonstrated correlations between these two aspects. Divergence time estimation, supported by fossil records, indicated that the divergence of Caridea species occurred in the Triassic period of the Mesozoic era, with subsequent differentiation into two major lineages during the Jurassic period., Conclusions: This study explored the fundamental characteristics and phylogenetic relationships of mitogenomes within the infraorder Caridea, providing valuable insights into their classification, interspecific evolutionary patterns, and the evolutionary status of various Caridea families. The findings provide essential references for identifying shrimp species and detecting significant gene rearrangements within the Caridea infraorder., (© 2024. The Author(s).)
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- 2024
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24. Simultaneous bilateral and staged total knee arthroplasty combined with unicompartmental knee arthroplasty in the treatment of bilateral knee osteoarthritis: comparison of early clinical outcomes, complications, and prosthesis survival.
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Xu K, Li X, Yan M, Wang T, Yu T, Zhao X, Zhang Y, and Zhang L
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- Humans, Female, Male, Middle Aged, Aged, Treatment Outcome, Follow-Up Studies, Retrospective Studies, Prosthesis Failure, Range of Motion, Articular, Arthroplasty, Replacement, Knee methods, Osteoarthritis, Knee surgery, Knee Prosthesis, Postoperative Complications etiology, Postoperative Complications epidemiology
- Abstract
Objective: Knee osteoarthritis (KOA) is usually bilateral. In many patients, the degree of bilateral knee degeneration varies, with one side involving multiple compartments and the other a single compartment degeneration. Therefore, the objective of this study was to compare the early clinical efficacy of simultaneous bilateral and staged total knee arthroplasty (TKA) combined with unicompartmental knee arthroplasty (UKA) in the treatment of bilateral KOA with different degrees., Methods: We compared clinical data from 71 simultaneous bilateral TKA/UKA (SB-TKA/UKA) patients with 52 Staged TKA/UKA (Staged-TKA/UKA) patients. Staged-TKA/UKA is defined as TKA on one knee followed by UKA on the other knee. The comparison included Hospital for Special Surgery (HSS) score, range of motion(ROM), complication rate and prosthetic survival rate at the last follow-up between the two groups., Results: The follow-up time of SB-TKA/UKA group was (69.08 ± 14.35) months, and that of Staged-TKA/UKA group was (73.25 ± 18.39) months. Staged-KA/UKA group had a shorter hospital stays, less hospitalization costs and shorter operating time (p < 0.001 for hospital stay, p < 0.001 for hospitalization costs and p < 0.001 for operating time). There were no significant differences in HSS and ROM between the two groups at the last follow-up (p > 0.05). There was no significant difference in complication rate between the two groups (χ2 = 0.56, p = 0.454). For the TKA-side knee joint, there was no significant difference in the prosthetic survival rate (χ2 = 0.05, p = 0.824) and the prosthetic survival curve (χ2 = 0.052, p = 0.82) between the two groups. For UKA-side knee joint, there was no significant difference in prosthetic survival rate (χ2 = 0.08, p = 0.777) and prosthetic survival curve (χ2 = 0.074, p = 0.786) between the two groups., Conclusions: Compared to Staged-TKA/UKA, SB-TKA/UKA has the same early clinical efficacy, shorter operating time and hospital stays, less hospitalization costs, and no increased postoperative complications and prosthesis revision rates. Therefore, SB-TKA/UKA may be recommended for patients who can tolerate simultaneous bilateral surgery as assessed before surgery., (© 2024. The Author(s).)
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- 2024
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25. The link between fear of disease progression and health promotion behaviors in patients with obstructive sleep apnea hypoventilation syndrome (OSAHS): the mediating role of social support.
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Zhang F, Liang C, Zhang C, Xu K, Chen Q, Xu H, and Zhang H
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- Humans, Male, Middle Aged, Female, Cross-Sectional Studies, Adult, China, Aged, Surveys and Questionnaires, Sleep Apnea, Obstructive psychology, Social Support, Fear psychology, Health Promotion methods, Health Behavior, Disease Progression
- Abstract
Objective: This study aims to assess the levels of social support, fear of disease progression (FOP) and health promotion behaviors in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS), and to examine the associations between FOP, social support, and health promotion behaviors in OSAHS patients, with a focus on exploring the mediating role of social support. The findings aim to provide insights for enhancing health promotion behaviors among OSAHS patients in China and to offer a theoretical foundation for healthcare professionals in devising intervention strategies to promote health behaviors in individuals with OSAHS., Methods: This cross-sectional study included 307 patients diagnosed with OSAHS in Jinzhou City, Liaoning province. The survey instruments utilized included the Demographic Characteristics Questionnaire, Social Support Rating Scale (SSRS), Fear of Disease Progression Scale (Fop-Q-SF), and Health-Promoting Lifestyle Scale (HPLP II). Pearson correlation analysis was employed to assess correlations, while multiple linear regression and structural equation modeling were utilized to explore potential mediation effects., Results: In the OSAHS patient population, FOP (r=-0.55, p<0.001) and social support (r = 0.60, p<0.001) were found to be significantly correlated with health promotion behaviors. In the mediated effects model, social support was identified as a partial mediator in the association between FOP and health promotion behaviors among OSAHS patients, accounting for 59.00% of the total effect., Conclusion: FOP demonstrates a direct relationship with health promotion behaviors in patients with OSAHS, with social support playing a mediating role in this connection. Healthcare professionals are advised to underscore the significance of social support in promoting the health of OSAHS patients to mitigate FOP and consequently improve health promotion behaviors., (© 2024. The Author(s).)
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- 2024
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26. Propensity score matching analysis of early vs. delayed surgery for intertrochanteric fracture in older patients: a retrospective multicenter cohort study of 7414 patients with a mean 4-year follow up.
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Guo J, Zhang B, Yu H, Xie J, Wang T, Long Y, Pan Y, Xu K, Li Z, Jing W, Hou Z, Xu X, and Xu P
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- Humans, Male, Female, Retrospective Studies, Aged, Aged, 80 and over, Follow-Up Studies, Time-to-Treatment trends, Cohort Studies, Hip Fractures surgery, Propensity Score, Postoperative Complications epidemiology
- Abstract
Background: The widespread acceptance of early surgery as a treatment for acute intertrochanteric fracture (ITF) has been accompanied by ongoing controversy due to conflicting conclusions presented in previous studies. This study aims to compare the occurrence of perioperative complications and mortality, as well as functional outcomes in older patients with ITF who underwent either early or delayed surgery., Methods: A retrospective multicenter cohort study involving 7414 patients with ITF between Jan. 2017 and Dec. 2021 was conducted. After predefined participants selection inclusion and exclusion criteria, 2323 surgically treated ITF patients were included and analyzed utilizing propensity score matching (PSM) method. Their demographics, injury-related data, surgery-related data, and perioperative adverse outcomes during hospitalization were collected and compared between the early or delayed surgery groups by PSM with a 1:4 ratio. All participants received a minimum of two-year follow-up and perioperative outcomes, functional outcomes, and survival analyses were conducted and compared., Results: After adjustment for potential confounders, there were no significant difference in surgery duration, intraoperative blood loss, transfusion rate, mortality rates, functional outcomes, and perioperative complications rates including severe complications, cardiac complications, pulmonary complications, and neurological complications regardless of whether the patient was treated with early or delayed surgery (all P > 0.05). Although length of hospital stay (mean, 11.5 versus 14.4 days, P < 0.001), total hospital costs (mean, 39305 versus 42048 yuan, P < 0.001), and minor complications rates including hematological complications (31.7% versus 41.2%, P = 0.007) and nutritional/metabolic complications (59.3% versus 66.4%, P = 0.039) were lower in the early surgery group, our result indicated patients with early surgery were more inclined to receive more blood transfusion (mean, 2.8 versus 2.2 units, P = 0.004)., Conclusions: Our findings suggest that a 48-hour delay in surgical intervention for older patients with an ITF does not result in a higher mortality rate, worse functional outcomes, and increased incidence of major perioperative complications when compared to early surgery. While expedited surgery is undoubtedly necessary for suitable patients, a reasonable preoperative delay of 48 h may be justified and safe for those with severe conditions, rather than strictly adhering to the current guidelines., (© 2024. The Author(s).)
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- 2024
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27. Influence of hip prosthesis position on postoperative gait in symptomatic hip osteoarthritis secondary to hip dysplasia patients after primary total hip arthroplasty: a short-term follow-up study.
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Wang Y, Yu H, Yang J, Xu K, Cheng L, Xin P, Liu J, Ren H, Li X, Qi Q, Wang Y, and Xue C
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- Humans, Female, Male, Middle Aged, Follow-Up Studies, Aged, Hip Dislocation etiology, Hip Dislocation surgery, Hip Dislocation diagnostic imaging, Adult, Treatment Outcome, Arthroplasty, Replacement, Hip adverse effects, Osteoarthritis, Hip surgery, Osteoarthritis, Hip etiology, Osteoarthritis, Hip diagnostic imaging, Osteoarthritis, Hip physiopathology, Gait physiology, Hip Prosthesis
- Abstract
Background: The aim of this study was to analyze the influence of the positioning of the components of total hip arthroplasty (THA) evaluated by the acetabular anteversion (AA) and femoral anteversion (FA) angle on postoperative gait in patients with symptomatic hip osteoarthritis secondary to hip dysplasia undergoing THA., Methods: Between May 2023 and May 2024, patients with symptomatic hip osteoarthritis secondary to hip dysplasia (Crowe Type I and IV) who underwent THA were enrolled in the study. The AA angle and FA angle were measured by computer tomography (CT). Gait data were determined by using the Dynamic Right Gait & Posture analysis system. The relationship between FA, AA and gait data was analyzed by Pearson correlation test, subgroup Pearson correlation test, multiple linear regression., Results: A total of 40 patients (45hips) were included in the study. Compared with preoperative, the patient's postoperative foot progression angle, foot contact angle, plantarflexion velocity, swing foot speed, gait velocity, cadence, stride length were significantly improved. Preoperative FA is significantly different from postoperative FA (P < 0.05), while the difference between preoperative and postoperative AA is not significant. BMI, Crowe Type, AA were related to change of cadence. The less the postoperative AA of patients, and the more the cadence in the postoperative gait of patients., Conclusion: Our study showed that THA could improve the gait function of patients with symptomatic hip osteoarthritis secondary to hip dysplasia. Adjusting AA lower could obtain a much more postoperative cadence., (© 2024. The Author(s).)
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- 2024
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28. Psychometric evaluation of the Chinese version of the Nursing Student Contributions to Clinical Settings scale and analysis of factors influencing nurses' perceptions of nursing students' contributions: a cross-sectional study.
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Xu K, Tong H, Zhang C, Qiu F, and Liu Y
- Abstract
Background: Most medical organizations accept many nursing students each year who gain clinical practice skills under the supervision of clinical nurses. However, there are no assessment tools to measure the contributions nursing students make to the clinical setting during clinical practicum. This study aimed to translate the 'Nursing Student Contributions to Clinical Settings' scale into Chinese and test its reliability and validity from the perspective of Chinese clinical nurses. And to explore whether nurses' personal and professional characteristics are related to nurses' perception of nursing students' contributions to the clinical settings., Methods: The original scale was translated into Chinese following the Brislin translation model. A convenience sample of 935 clinical nurses was selected from January to March 2024 for the survey. The content validity of the scale was assessed by expert consultation and content validity index. Exploratory factor analysis and confirmatory factor analysis were performed to assess the construct validity of the scale. The reliability of the scale was measured using internal consistency, split-half reliability, and test-retest reliability. The measurement quality of the scales was assessed according to the COnsensus-based Standards for the selection of health Measurement INstruments. One-way analysis of variance was used to identify variables related to students' contributions., Results: The content validity index of the scale was 0.983. Exploratory factor analysis supported a one-factor structure, and the cumulative variance contribution was 71.177%. Confirmatory factor analysis showed that the model fit indicators were all within the acceptable range. The McDonald's Omega coefficient and Cronbach's alpha coefficient for the scale were 0.983. Nurses perceive that nursing students' contribution to the clinical settings is influenced by nurses' personal characteristics, professional characteristics, and the hospital environment., Conclusion: The Chinese version of the Nursing Student Contributions to Clinical Settings scale has good reliability and validity and can effectively and reliably measure the contributions of Chinese nursing students to clinical settings., (© 2024. The Author(s).)
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- 2024
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29. Integrating deep phenotyping with genetic analysis: a comprehensive workflow for diagnosis and management of rare bone diseases.
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Li G, Xu K, Yin X, Yang J, Cai J, Yang X, Li Q, Wang J, Zhao Z, Mahesahti A, Zhang N, Zhang TJ, and Wu N
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- Humans, Genetic Testing methods, Precision Medicine methods, Workflow, Female, Male, Rare Diseases genetics, Rare Diseases diagnosis, Phenotype, Bone Diseases genetics, Bone Diseases diagnosis, Bone Diseases therapy
- Abstract
Phenotypes play a fundamental role in medical genetics, serving as external manifestations of underlying genotypes. Deep phenotyping, a cornerstone of precision medicine, involves precise multi-system phenotype assessments, facilitating disease subtyping and genetic understanding. Despite their significance, the field lacks standardized protocols for accurate phenotype evaluation, hindering clinical comprehension and research comparability. We present a comprehensive workflow of deep phenotyping for rare bone diseases from the Genetics Clinic of Skeletal Deformity at Peking Union Medical College Hospital. Our workflow integrates referral, informed consent, and detailed phenotype evaluation through HPO standards, capturing nuanced phenotypic characteristics using clinical examinations, questionnaires, and multimedia documentation. Genetic testing and counseling follow, based on deep phenotyping results, ensuring personalized interventions. Multidisciplinary team consultations facilitate comprehensive patient care and clinical guideline development. Regular follow-up visits emphasize dynamic phenotype reassessment, ensuring treatment strategies remain responsive to evolving patient needs. In conclusion, this study highlights the importance of deep phenotyping in rare bone diseases, offering a standardized framework for phenotype evaluation, genetic analysis, and multidisciplinary intervention. By enhancing clinical care and research outcomes, this approach contributes to the advancement of precision medicine in the field of medical genetics., (© 2024. The Author(s).)
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- 2024
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30. Heparin-enriched plasma proteome is significantly altered in Alzheimer's disease.
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Guo Q, Ping L, Dammer EB, Duong DM, Yin L, Xu K, Shantaraman A, Fox EJ, Golde TE, Johnson ECB, Roberts BR, Lah JJ, Levey AI, and Seyfried NT
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- Humans, Aged, Male, Female, Amyloid beta-Peptides metabolism, Amyloid beta-Peptides blood, Proteomics methods, Aged, 80 and over, tau Proteins metabolism, Blood Proteins metabolism, Blood Proteins analysis, Middle Aged, Alzheimer Disease blood, Alzheimer Disease metabolism, Proteome metabolism, Heparin metabolism, Biomarkers blood, Biomarkers cerebrospinal fluid
- Abstract
Introduction: Heparin binding proteins (HBPs) with roles in extracellular matrix assembly are strongly correlated to β-amyloid (Aβ) and tau pathology in Alzheimer's disease (AD) brain and cerebrospinal fluid (CSF). However, it remains challenging to detect these proteins in plasma using standard mass spectrometry-based proteomic approaches., Methods: We employed heparin-affinity chromatography, followed by off-line fractionation and tandem mass tag mass spectrometry (TMT-MS), to enrich HBPs from plasma obtained from AD (n = 62) and control (n = 47) samples. These profiles were then correlated to Aβ, tau and phosphorylated tau (pTau) CSF biomarkers and plasma pTau181 from the same individuals, as well as a consensus brain proteome network to assess the overlap with AD brain pathophysiology., Results: Heparin enrichment from plasma was highly reproducible, enriched well-known HBPs like APOE and thrombin, and depleted high-abundant proteins such as albumin. A total of 2865 proteins, spanning 10 orders of magnitude in abundance, were measured across 109 samples. Compared to the consensus AD brain protein co-expression network, we observed that specific plasma proteins exhibited consistent direction of change in both brain and plasma, whereas others displayed divergent changes, highlighting the complex interplay between the two compartments. Elevated proteins in AD plasma, when compared to controls, included members of the matrisome module in brain that accumulate with Aβ deposits, such as SMOC1, SMOC2, SPON1, MDK, OLFML3, FRZB, GPNMB, and the APOE4 proteoform. Additionally, heparin-enriched proteins in plasma demonstrated significant correlations with conventional AD CSF biomarkers, including Aβ, total tau, pTau, and plasma pTau181. A panel of five plasma proteins classified AD from control individuals with an area under the curve (AUC) of 0.85. When combined with plasma pTau181, the panel significantly improved the classification performance of pTau181 alone, increasing the AUC from 0.93 to 0.98. This suggests that the heparin-enriched plasma proteome captures additional variance in cognitive dementia beyond what is explained by pTau181., Conclusion: These findings support the utility of a heparin-affinity approach coupled with TMT-MS for enriching amyloid-associated proteins, as well as a wide spectrum of plasma biomarkers that reflect pathological changes in the AD brain., (© 2024. The Author(s).)
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- 2024
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31. The value of quantitative analysis of radionuclide bone SPECT/CT imaging in vertebral compression fracture: a retrospective study.
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Wang Y, Qiao F, Li N, Liu Y, Long Y, Xu K, Wang J, and Zhang W
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- Humans, Female, Male, Retrospective Studies, Aged, Middle Aged, Aged, 80 and over, Technetium Tc 99m Medronate analogs & derivatives, Radiopharmaceuticals, Osteoporotic Fractures diagnostic imaging, Fractures, Compression diagnostic imaging, Spinal Fractures diagnostic imaging, Single Photon Emission Computed Tomography Computed Tomography methods
- Abstract
Background: Most patients with osteoporosis experience vertebral compression fracture (VCF), which significantly reduces their quality of life. These patients are at a high risk of secondary VCF regardless of treatment. Thus, accurate diagnosis of VCF is important for treating and preventing new fractures. We aimed to investigate the diagnostic and predictive value of quantitative bone imaging techniques for fresh VCF., Methods: From November 2021 to March 2023, 34 patients with VCF were enrolled in this study, all of whom underwent routine
99m Tc-MDP whole-body bone planar scan and local SPECT/CT imaging. The maximum standard uptake value (SUVmax) of 57 fresh VCF, 57 normal adjacent vertebrae, and 19 old VCF were measured. Based on the site of the fracture, fresh VCFs were regrouped into the intervertebral-type group and the margin-type group. Meanwhile, 52 patients who had no bone metastasis or VCFs in their bone scan were assigned to the control group. The SUVmax of 110 normal vertebral bodies and 10 old VCFs in the control group were measured., Results: The median SUVmax of fresh VCF was 19.80, which was significantly higher than the SUVmax of other groups. The receiver operator characteristic (ROC) curve showed that the cut-off value of SUVmax was 9.925 for diagnosing fresh VCF. The SUVmax in the intervertebral-type group was significantly higher than that in the margin-type group (P = 0.04). The SUVmax of normal vertebrae was higher among patients than among the control group (P<0.01), but the CT HU value showed no significant difference., Conclusion: The quantitative technique of bone SPECT/CT has a significant value in diagnosing fresh VCF. It can also determine the severity of fractures. In addition, whether the SUVs of the vertebrae adjacent to the fractured vertebra can predict re-fracture deserves further studies., (© 2024. The Author(s).)- Published
- 2024
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32. Evaluation of cardiac remodeling in pediatric chronic kidney disease by cardiovascular magnetic resonance.
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Song S, Xie L, Xu H, Xu K, Fu H, Zhang L, Hou R, Tao Y, and Guo Y
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- Humans, Male, Female, Child, Prospective Studies, Case-Control Studies, Adolescent, Age Factors, Risk Factors, Magnetic Resonance Imaging, Cine, Glomerular Filtration Rate, Kidney physiopathology, Severity of Illness Index, Child, Preschool, Ventricular Remodeling, Renal Insufficiency, Chronic physiopathology, Renal Insufficiency, Chronic diagnosis, Renal Insufficiency, Chronic complications, Ventricular Function, Left, Predictive Value of Tests
- Abstract
Background: Children with chronic kidney disease (CKD) are at high risk of cardiovascular disease. Cardiovascular magnetic resonance (CMR) is the reference method for assessing cardiac remodeling. To our knowledge, no study has reported a comprehensive analysis of left ventricular(LV) cardiac remodeling using CMR in different stages of pediatric CKD. This prospective case-control study aimed to investigate cardiac remodeling in pediatric CKD, using CMR, and determine its relationship with risk factors., Method: CMR was performed in 124 children with CKD and 50 controls. The cardiac remodeling parameters included left ventricular mass index (LVMI), LV remodeling index (LVRI), and LV wall thickness. Univariable and multivariable analyses were performed to assess the cardiac remodeling risk factors., Results: Cardiac remodeling was observed in 35.5% (44/124) of children with CKD. The LVMI, LVRI, and LV wall thickness were higher in advanced stages of CKD (P < 0.05). In the CKD stage 1-2 group, a lower in the estimated glomerular filtration rate was an independent determinant of impaired LVMI (β = -0.425, P = 0.019) and LVRI (β = -0.319, P = 0.044). A higher protein to creatinine ratio(PCR) was independently associated with impaired LVRI (β = 0.429, P = 0.022). In the CKD stage 3-5 group, higher in systolic blood pressure (SBP) (β = 0.464, P = 0.005) and PCR (β = 0.852, P = 0.031) were independent determinants of impaired LVMI. Additionally, higher SBP was positively correlated with impaired LVRI(r = 0.599, P < 0.001). There was a trend toward more abnormal cardiac remodeling in the CKD stage 3-5 group with hypertension than those without., Conclusion: Cardiac remodeling is prevalent in children with CKD, from an early stage. kidney markers are independently associated with cardiac remodeling. Hypertension increases the risk of cardiac remodeling in CKD stages 3-5. Strict BP control may help reverse or prevent remodeling., (© 2024. The Author(s).)
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- 2024
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33. Targeting GPRC5D for multiple myeloma therapy.
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Zhou D, Wang Y, Chen C, Li Z, Xu K, and Zhao K
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- Humans, Immunoconjugates therapeutic use, Antibodies, Bispecific therapeutic use, Animals, Immunotherapy methods, Molecular Targeted Therapy methods, Multiple Myeloma drug therapy, Multiple Myeloma therapy, Multiple Myeloma immunology, Receptors, G-Protein-Coupled antagonists & inhibitors
- Abstract
Given its nearly ubiquitous expression on plasma cells and limited expression on essential normal tissue, the G protein-coupled receptor class C group 5 member D (GPRC5D) presents a promising opportunity for utilization as an immunotherapy target in multiple myeloma (MM). The therapeutic strategies targeting GPRC5D, such as bispecific antibodies (BsAbs), chimeric antigen receptor (CAR) T cells, and antibody-drug conjugates (ADCs), have been prominently emphasized in relapsed/refractory MM (R/R MM) in recent years. Further clinical trials are necessary to confirm the long-term efficacy of GPRC5D-targeting immunotherapies alone, explore their potentials co-targeting with other specific antigens, or investigate their combinations with existing treatments to overcome MM resistance. This review provides an overview of current research progress in GPRC5D, encompassing its biological characteristics and translational journey from laboratory to clinical application., (© 2024. The Author(s).)
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- 2024
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34. Simultaneous bilateral open wedge high tibial osteotomy versus simultaneous bilateral unicompartmental knee arthroplasty in the treatment of bilateral medial knee osteoarthritis: a retrospective study of an average three-year follow-up.
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Xu K, Shi W, Li X, Wang T, Yu T, Zhao X, Zhang Y, and Zhang L
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- Humans, Retrospective Studies, Male, Female, Middle Aged, Follow-Up Studies, Treatment Outcome, Aged, Range of Motion, Articular, Time Factors, Postoperative Complications etiology, Postoperative Complications epidemiology, Osteoarthritis, Knee surgery, Arthroplasty, Replacement, Knee methods, Osteotomy methods, Tibia surgery
- Abstract
Objective: There is growing evidence that simultaneous bilateral open wedge high tibial osteotomy(SBOWHTO) and simultaneous bilateral unicompartmental knee arthroplasty(SBUKA) is an effective surgical treatment for bilateral medial knee osteoarthritis (MKOA). However, which intervention is more beneficial for bilateral MKOA patients remains unknown. Therefore, the aim of this study was to compare the effectiveness of these two strategies through early clinical outcomes, complication rates, and prosthetic survival., Methods: The clinical data of 60 patients with bilateral MKOA admitted to the Affiliated Hospital of Qingdao University from January 2018 to December 2022 were retrospectively analyzed, and they were divided into SBOWHTO group (n = 28) and SBUKA group (n = 32) according to different treatment methods. Clinical relevant indexes, Hospital for Special Surgery (HSS) score, Knee Society Knee (KSS) score, range of motion(ROM), postoperative complications and prosthetic survival rate were compared between the two groups., Results: Patients in the SBOWHTO group were followed up for 27 to 50 months, with an average of (37.18 ± 6.84) months. Patients in the SBUKA group were followed up for 24 to 59 months, with an average of (39.38 ± 9.74) months. There were no significant differences in postoperative KSS, HSS and ROM between SBOWHTO group and SBUKA group (p > 0.05). There was no significant difference in complication rate between the two groups (p = 0.721). There was no significant difference in prosthetic survival rate (p = 0.622) and prosthetic survival curve (χ2 = 0.546, p = 0.46) between the two groups., Conclusions: This study compared early clinical outcomes, complication rates, and prosthesis retention rates after SBOWHTO and SBUKA, and found that the early clinical benefits of SBOWHTO and SBUKA were comparable in patients with bilateral MKOA., (© 2024. The Author(s).)
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- 2024
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35. Comparison of early curative effects of lateral unicompartmental knee arthroplasty with total knee arthroplasty and the legacy constrained condylar knee arthroplasty in the treatment of isolated lateral osteoarthritis: a single-center retrospective study.
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Yu H, Meng J, Xu Y, Xu K, Lin C, and Bao J
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- Aged, Female, Humans, Male, Middle Aged, Follow-Up Studies, Knee Joint surgery, Knee Joint diagnostic imaging, Operative Time, Range of Motion, Articular, Retrospective Studies, Time Factors, Treatment Outcome, Arthroplasty, Replacement, Knee methods, Osteoarthritis, Knee surgery
- Abstract
Background: Aims of this study were to compare the functional and radiographic results, perioperative complication after lateral unicompartmental knee arthroplasty (LUKA) with total knee arthroplasty (TKA) and the legacy constrained condylar knee (LCCK) arthroplasty for the treatment of lateral compartmental knee osteoarthritis (LCKOA), and to provide a basis for the treatment of LCKOA., Methods: From January 2021 to January 2024, analyzed retrospectively clinical data of 74 patients with LCKOA treated with LUKA, TKA and LCCK arthroplasty. According to the operation plan, the patients were divided into three groups: LUKA group (23 cases), TKA group (23 cases) and LCCK group (28 cases). The changes of hip-knee-ankle (HKA) angle of the affected knee before and after operation were measured. All patients were assessed using the operation time, blood loss during operation, incision length, visual analogue scale (VAS) score before operation and after operation, Hospital for Special Surgery score (HSS), Oxford Knee Score (OKS), range of motion (ROM)., Results: All 74 patients were followed up for (2.38 ± 0.33) years. The operation time, blood loss during operation, incision length and VAS score after operation in the LUKA group were significantly less than those in the TKA group and LCCK group (P < 0.05); HKA valgus angle, ROM, HSS score and OKS score of the three groups after operation were significantly better than those before operation (P < 0.05); There was no significant difference among the three groups in HSS score and OKS score (P > 0.05)., Conclusion: LUKA, TKA and LCCK arthroplasty have good clinical effect in the treatment of LCKOA; Compared with TKA and LCCK arthroplasty, LUKA has the advantages of less trauma, less bleeding, less pain and quick recovery. The short-term effect is satisfactory, and the long-term effect remains to be observed., (© 2024. The Author(s).)
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- 2024
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36. Respiratory pathogen dynamics in community fever cases: Jiangsu Province, China (2023-2024).
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Deng F, Dong Z, Qiu T, Xu K, Dai Q, Yu H, Fan H, Qian H, Bao C, Gao W, and Zhu L
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- Humans, China epidemiology, Male, Female, Middle Aged, Adult, Adolescent, Child, Young Adult, Child, Preschool, Incidence, Aged, Infant, Influenza, Human epidemiology, Influenza, Human virology, Fever epidemiology, Fever virology, Aged, 80 and over, Infant, Newborn, Viral Load, Coinfection epidemiology, Coinfection virology, Respiratory Tract Infections epidemiology, Respiratory Tract Infections virology
- Abstract
Background: Respiratory infectious diseases have the highest incidence among infectious diseases worldwide. Currently, global monitoring of respiratory pathogens primarily focuses on influenza and coronaviruses. This study included influenza and other common respiratory pathogens to establish a local respiratory pathogen spectrum. We investigated and analyzed the co-infection patterns of these pathogens and explored the impact of lifting non-pharmaceutical interventions (NPIs) on the transmission of influenza and other respiratory pathogens. Additionally, we used a predictive model for infectious diseases, utilizing the commonly used An autoregressive comprehensive moving average model (ARIMA), which can effectively forecast disease incidence., Methods: From June 2023 to February 2024, we collected influenza-like illness (ILI) cases weekly from the community in Xuanwu District, Nanjing, and obtained 2046 samples. We established a spectrum of respiratory pathogens in Nanjing and analysed the age distribution and clinical symptom distribution of various pathogens. We compared age, gender, symptom counts, and viral loads between individuals with co-infections and those with single infections. An autoregressive comprehensive moving average model (ARIMA) was constructed to predict the incidence of respiratory infectious diseases., Results: Among 2046 samples, the total detection rate of respiratory pathogen nucleic acids was 53.37% (1092/2046), with influenza A virus 479 cases (23.41%), influenza B virus 224 cases (10.95%), and HCoV 95 cases (4.64%) being predominant. Some pathogens were statistically significant in age and number of symptoms. The positive rate of mixed infections was 6.11% (125/2046). There was no significant difference in age or number of symptoms between co-infection and simple infection. After multiple iterative analyses, an ARIMA model (0,1,4), (0,0,0) was established as the optimal model, with an R
2 value of 0.930, indicating good predictive performance., Conclusions: The spectrum of respiratory pathogens in Nanjing, Jiangsu Province, was complex in the past. The primary age groups of different viruses were different, causing various symptoms, and the co-infection of viruses did not correlate with the age and gender of patients. The ARIMA model estimated future incidence, which plateaued in subsequent months., (© 2024. The Author(s).)- Published
- 2024
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37. A functional variant rs912304 for late-onset T1D risk contributes to islet dysfunction by regulating proinflammatory cytokine-responsive gene STXBP6 expression.
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Qian Y, Chen S, Wang Y, Zhang Y, Zhang J, Jiang L, Dai H, Shen M, He Y, Jiang H, Yang T, Fu Q, and Xu K
- Subjects
- Adolescent, Animals, Child, Female, Humans, Male, Age of Onset, Cytokines genetics, Cytokines metabolism, Gene Expression Regulation, Genetic Predisposition to Disease, Genome-Wide Association Study, Polymorphism, Single Nucleotide genetics, Quantitative Trait Loci, Carrier Proteins genetics, Diabetes Mellitus, Type 1 genetics, Islets of Langerhans metabolism
- Abstract
Background: Our previous genome‑wide association studies (GWAS) have suggested rs912304 in 14q12 as a suggestive risk variant for type 1 diabetes (T1D). However, the association between this risk region and T1D subgroups and related clinical risk features, the underlying causal functional variant(s), putative candidate gene(s), and related mechanisms are yet to be elucidated., Methods: We assessed the association between variant rs912304 and T1D, as well as islet autoimmunity and islet function, stratified by the diagnosed age of 12. We used epigenome bioinformatics analyses, dual luciferase reporter assays, and expression quantitative trait loci (eQTL) analyses to prioritize the most likely functional variant and potential causal gene. We also performed functional experiments to evaluate the role of the causal gene on islet function and its related mechanisms., Results: We identified rs912304 as a risk variant for T1D subgroups with diagnosed age ≥ 12 but not < 12. This variant is associated with residual islet function but not islet-specific autoantibody positivity in T1D individuals. Bioinformatics analysis indicated that rs912304 is a functional variant exhibiting spatial overlaps with enhancer active histone marks (H3K27ac and H3K4me1) and open chromatin status (ATAC-seq) in the human pancreas and islet tissues. Luciferase reporter gene assays and eQTL analyses demonstrated that the biallelic sites of rs912304 had differential allele-specific enhancer activity in beta cell lines and regulated STXBP6 expression, which was defined as the most putative causal gene based on Open Targets Genetics, GTEx v8 and Tiger database. Moreover, Stxbp6 was upregulated by T1D-related proinflammatory cytokines but not high glucose/fat. Notably, Stxbp6 over-expressed INS-1E cells exhibited decreasing insulin secretion and increasing cell apoptosis through Glut1 and Gadd45β, respectively., Conclusions: This study expanded the genomic landscape regarding late-onset T1D risk and supported islet function mechanistically connected to T1D pathogenesis., (© 2024. The Author(s).)
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- 2024
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38. The impact of COVID-19 infections on pregnancy outcomes in women.
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Xu K, Sun W, Yang S, Liu T, and Hou N
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- Female, Humans, Infant, Newborn, Pregnancy, Cesarean Section statistics & numerical data, Retrospective Studies, COVID-19 epidemiology, COVID-19 complications, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious virology, Pregnancy Outcome epidemiology, Premature Birth epidemiology, Premature Birth virology, SARS-CoV-2 pathogenicity
- Abstract
Background: Given that viral infections can increase the risk of adverse pregnancy outcomes, such as spontaneous miscarriage, preterm premature rupture of membranes, and preterm birth, the effects of COVID-19, a novel emerging coronavirus disease rapidly spreading globally, on pregnancy outcomes have garnered significant attention., Methods: We conducted a review of studies related to pregnant women infected with SARS-CoV-2 over the past five years (December 2019 to April 2023), utilizing search engines such as PubMed, Web of Science, and the China National Knowledge Infrastructure (CNKI). This study was registered with PROSPERO with ID: CRD42024540849., Results: A total of 218 articles were screened, with 15 studies meeting the inclusion criteria for this research, including 12 cohort studies, one cross-sectional study, one case-control study, and one case series. Six studies found that the preterm birth rate was higher in the infected group compared to the control group; five studies showed that the cesarean section rate was higher in the infected group; three studies found that the APGAR scores of newborns were higher in the control group than in the infected group; three studies indicated that the mortality rate of newborns in the infected group was higher than that in the control group., Conclusions: Our retrospective review suggests that compared to pregnant women not infected with SARS-CoV-2, those diagnosed with COVID-19 are more likely to experience adverse outcomes such as preterm birth, cesarean delivery, and low birth weight in newborns., (© 2024. The Author(s).)
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- 2024
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39. Prognostic analysis of concurrent Pneumocystis jirovecii pneumonia in patients with systemic lupus erythematosus: a retrospective study.
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Shi Y, Chen R, Sun H, Xu K, Li Z, Wang M, Shao C, and Huang H
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- Humans, Female, Male, Retrospective Studies, Adult, Prognosis, Middle Aged, Kaplan-Meier Estimate, Lupus Erythematosus, Systemic complications, Lupus Erythematosus, Systemic mortality, Pneumonia, Pneumocystis mortality, Pneumonia, Pneumocystis microbiology, Pneumocystis carinii isolation & purification
- Abstract
Background: Systemic lupus erythematosus (SLE) has been less deadly since the advent of corticosteroid-sparing medications. SLE patients still have a higher mortality rate than the general population. Infectious disease is reported as one of the major causes of death in patients with SLE. Although bacteria are the most often isolated pathogens from patients with SLE, Pneumocystis jirovecii pneumonia (PJP) is more deadly than bacterial infection., Methods: We retrospectively enrolled consecutive patients with SLE concurrent with PJP (SLE-PJP) in our center between January 2014 and December 2022. The participants were classified into two groups: survivors and non-survivors. Cox regression models and Kaplan‒Meier survival analyses were conducted to explore prognostic factors for survival., Results: There were 57 patients with SLE (42.0 ± 15.8 years old, 78.9% female) complicated with PJP, 22 (38.6%) of whom died. Compared with the survival group, the non-survival group had more patients with hyperglycemia or diabetes mellitus, invasive ventilation (p < 0.01), respiratory failure, intensive care unit admission, non-invasive ventilation, and hospital-acquired pneumonia (p < 0.05). The non-survival group showed a higher neutrophil percentage, lactate dehydrogenase, D-dimer (p < 0.001), urea, high-sensitivity C-reactive protein (hsCRP), erythrocyte sedimentation rate (ESR), and ferritin (p < 0.05). It also had lower minimal albumin, hemoglobin (p < 0.001), immunoglobulin G, complement 3, peripheral lymphocyte count, platelet, NK cell count, and CD4
+ T-cell count (p < 0.05). Multivariate analysis indicated that hyperglycemia or diabetes mellitus (HR = 4.25, p < 0.01, 95% CI: 1.51-11.97), thrombocytopenia (HR = 4.22, p < 0.01, 95% CI: 1.63-10.91) and lower complement 3 (C3) (HR = 4.06, p < 0.01, 95% CI: 1.60-10.33) were independent risk factors for the survival of SLE-PJP patients., Conclusions: The mortality rate of patients with SLE-PJP is still high. Hyperglycemia, decreased C3, and thrombocytopenia are independent survival risk factors., (© 2024. The Author(s).)- Published
- 2024
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40. Network analysis of three-dimensional hard-soft tissue relationships in the lower 1/3 of the face: skeletal Class I-normodivergent malocclusion versus Class II-hyperdivergent malocclusion.
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Wang T, Nie K, Fan Y, Chen G, Xu K, Han B, Pei Y, Song G, and Xu T
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- Humans, Male, Female, Adult, Young Adult, Maxilla diagnostic imaging, Maxilla pathology, Chin diagnostic imaging, Chin anatomy & histology, Chin pathology, Incisor diagnostic imaging, Incisor anatomy & histology, Image Processing, Computer-Assisted methods, Cone-Beam Computed Tomography, Malocclusion, Angle Class II diagnostic imaging, Malocclusion, Angle Class II pathology, Cephalometry methods, Imaging, Three-Dimensional methods, Anatomic Landmarks, Face anatomy & histology, Face diagnostic imaging, Malocclusion, Angle Class I diagnostic imaging, Malocclusion, Angle Class I pathology, Mandible diagnostic imaging, Mandible pathology
- Abstract
Background: The determining effect of facial hard tissues on soft tissue morphology in orthodontic patients has yet to be explained. The aim of this study was to clarify the hard-soft tissue relationships of the lower 1/3 of the face in skeletal Class II-hyperdivergent patients compared with those in Class I-normodivergent patients using network analysis., Methods: Fifty-two adult patients (42 females, 10 males; age, 26.58 ± 5.80 years) were divided into two groups: Group 1, 25 subjects, skeletal Class I normodivergent pattern with straight profile; Group 2, 27 subjects, skeletal Class II hyperdivergent pattern with convex profile. Pretreatment cone-beam computed tomography and three-dimensional facial scans were taken and superimposed, on which landmarks were identified manually, and their coordinate values were used for network analysis., Results: (1) In sagittal direction, Group 2 correlations were generally weaker than Group 1. In both the vertical and sagittal directions of Group 1, the most influential hard tissue landmarks to soft tissues were located between the level of cemento-enamel junction of upper teeth and root apex of lower teeth. In Group 2, the hard tissue landmarks with the greatest influence in vertical direction were distributed more forward and downward than in Group 1. (2) In Group 1, all the correlations for vertical-hard tissue to sagittal-soft tissue position and sagittal-hard tissue to vertical-soft tissue position were positive. However, Group 2 correlations between vertical-hard tissue and sagittal-soft tissue positions were mostly negative. Between sagittal-hard tissue and vertical-soft tissue positions, Group 2 correlations were negative for mandible, and were positive for maxilla and teeth., Conclusion: Compared with Class I normodivergent patients with straight profile, Class II hyperdivergent patients with convex profile had more variations in soft tissue morphology in sagittal direction. In vertical direction, the most relevant hard tissue landmarks on which soft tissue predictions should be based were distributed more forward and downward in Class II hyperdivergent patients with convex profile. Class II hyperdivergent pattern with convex profile was an imbalanced phenotype concerning sagittal and vertical positions of maxillofacial hard and soft tissues., (© 2024. The Author(s).)
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- 2024
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41. Assessing the impact of triiodothyronine treatment on the lung microbiome of mice with pulmonary fibrosis.
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Guo X, Xu K, Wang Q, Han Z, and Yu G
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- Animals, Mice, Female, Idiopathic Pulmonary Fibrosis drug therapy, Idiopathic Pulmonary Fibrosis microbiology, Pulmonary Fibrosis drug therapy, Pulmonary Fibrosis microbiology, Triiodothyronine blood, Triiodothyronine pharmacology, Mice, Inbred C57BL, Microbiota drug effects, Bleomycin, Disease Models, Animal, Lung pathology, Lung microbiology, RNA, Ribosomal, 16S genetics
- Abstract
Background: Idiopathic pulmonary fibrosis (IPF), an interstitial lung disease, is characterized by the exacerbation of progressive pulmonary fibrosis (PF). IPF primarily affects older individuals and can lead to respiratory failure. This study aimed to assess the effects of triiodothyronine (T
3 ) treatment on the lung microbiome of mice with PF., Methods: Mice were perfused with bleomycin (BLM) to establish a PF model. Using a randomized design, 40 female specific pathogen-free (SPF) C57BL6/N mice were divided into four groups: saline, saline + T3 , BLM, and BLM + T3 . Histological morphology was assessed through Hematoxylin and Eosin staining as well as Masson's Trichrome staining. For the identification of lung bacteria, 16S rRNA gene sequencing was employed. An Enzyme-Linked Immunosorbent Assay was used to measure total T3 (TT3 ), free T3 (FT3 , and reverse T3 (rT3 ) levels in the peripheral serum., Results: T3 treatment ameliorated BLM-induced lung fibrosis and structural damage. The microbiome experienced a decrease in the abundance of Proteobacteria, Bacteroides, and Actinomycetes and an increase in the abundance of Firmicutes when exposed to BLM; however, T3 treatment reversed this effect. The four groups showed no significant difference in alpha microbiome diversity (P > 0.05). Serum concentrations of TT3 and FT3 were positively correlated with microbiome abundance (P < 0.05). Administration of T3 enhanced the microbiota in PF without affecting the diversity and biological functions of the microbiome (P > 0.05)., Conclusion: The administration of T3 demonstrated a favorable impact on the lung microbiota of mice afflicted with PF, thereby partially substantiating the potential role of T3 as a therapeutic agent in the management of PF., (© 2024. The Author(s).)- Published
- 2024
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42. Disulfidptosis-associated LncRNA signature predicts prognosis and immune response in kidney renal clear cell carcinoma.
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Xu K, Li D, Ji K, Zhang Y, Zhang M, Zhou H, Hou X, Jiang J, Zhang Z, Dai H, and Sun H
- Subjects
- Humans, Prognosis, Biomarkers, Tumor genetics, Gene Expression Regulation, Neoplastic, Male, RNA, Long Noncoding genetics, Carcinoma, Renal Cell genetics, Carcinoma, Renal Cell immunology, Kidney Neoplasms genetics, Kidney Neoplasms immunology
- Abstract
Background: Kidney renal clear cell carcinoma (KIRC) represents a significant proportion of renal cell carcinomas and is characterized by high aggressiveness and poor prognosis despite advancements in immunotherapy. Disulfidptosis, a novel cell death pathway, has emerged as a critical mechanism in various cellular processes, including cancer. This study leverages machine learning to identify disulfidptosis-related long noncoding RNAs (DRlncRNAs) as potential prognostic biomarkers in KIRC, offering new insights into tumor pathogenesis and treatment avenues., Results: Our analysis of data from The Cancer Genome Atlas (TCGA) led to the identification of 431 DRlncRNAs correlated with disulfidptosis-related genes. Five key DRlncRNAs (SPINT1-AS1, AL161782.1, OVCH1-AS1, AC131009.3, and AC108673.3) were used to develop a prognostic model that effectively distinguished between low- and high-risk patients with significant differences in overall survival and progression-free survival. The low-risk group had a favorable prognosis associated with a protective immune microenvironment and a better response to targeted drugs. Conversely, the high-risk group displayed aggressive tumor features and poor immunotherapy outcomes. Validation through qRT‒PCR confirmed the differential expression of these DRlncRNAs in KIRC cells compared to normal kidney cells, underscoring their potential functional significance in tumor biology., Conclusions: This study established a robust link between disulfidptosis-related lncRNAs and patient prognosis in KIRC, underscoring their potential as prognostic biomarkers and therapeutic targets. The differential expression of these lncRNAs in tumor versus normal tissue further highlights their relevance in KIRC pathogenesis. The predictive model not only enhances our understanding of KIRC biology but also provides a novel stratification tool for precision medicine approaches, improving treatment personalization and outcomes in KIRC patients., (© 2024. The Author(s).)
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- 2024
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43. Integrative analysis regarding the correlation between collagen-related genes and prostate cancer.
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Xiao Y, Lai C, Hu J, Mulati Y, Xu X, Luo J, Kong D, Liu C, and Xu K
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- Humans, Male, Prognosis, Matrix Metalloproteinase 11 genetics, Matrix Metalloproteinase 11 metabolism, Gene Expression Regulation, Neoplastic, Cell Line, Tumor, Collagen metabolism, Collagen genetics, Biomarkers, Tumor genetics, Biomarkers, Tumor metabolism, Tumor Microenvironment genetics, Aged, Cell Proliferation genetics, Cell Movement genetics, Prostatic Neoplasms genetics, Prostatic Neoplasms pathology, Prostatic Neoplasms metabolism, Prostatic Neoplasms mortality, Collagen Type I, alpha 1 Chain, Nomograms, Collagen Type I genetics, Collagen Type I metabolism, Procollagen-Lysine, 2-Oxoglutarate 5-Dioxygenase genetics, Procollagen-Lysine, 2-Oxoglutarate 5-Dioxygenase metabolism
- Abstract
Purpose: Prostate cancer (PCa) is a common malignancy in men, with an escalating mortality rate attributed to Recurrence and metastasis. Recent studies have illuminated collagen's critical regulatory role within the tumor microenvironment, significantly influencing tumor progression. Accordingly, this investigation is dedicated to examining the relationship between genes linked to collagen and the prognosis of PCa, with the objective of uncovering any possible associations between them., Methods: Gene expression data for individuals with prostate cancer were obtained from the TCGA repository. Collagen-related genes were identified, leading to the development of a risk score model associated with biochemical recurrence-free survival (BRFS). A prognostic nomogram integrating the risk score with essential clinical factors was crafted and evaluated for efficacy. The influence of key collagen-related genes on cellular behavior was confirmed through various assays, including CCK8, invasion, migration, cell cloning, and wound healing. Immunohistochemical detection was used to evaluate PLOD3 expression in prostate cancer tissue samples., Results: Our study identified four key collagen-associated genes (PLOD3, COL1A1, MMP11, FMOD) as significant. Survival analysis revealed that low-risk groups, based on the risk scoring model, had significantly improved prognoses. The risk score was strongly associated with prostate cancer prognosis. Researchers then created a nomogram, which demonstrated robust predictive efficacy and substantial clinical applicability.Remarkably, the suppression of PLOD3 expression notably impeded the proliferation, invasion, migration, and colony formation capabilities of PCa cells., Conclusion: The risk score, derived from four collagen-associated genes, could potentially act as a precise prognostic indicator for BRFS of patients. Simultaneously, our research has identified potential therapeutic targets related to collagen. Notably, PLOD3 was differentially expressed in cancer and para-cancer tissues in clinical specimens and it also was validated through in vitro studies and shown to suppress PCa tumorigenesis following its silencing., (© 2024. The Author(s).)
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- 2024
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44. Correction: Plant economics spectrum governs leaf nitrogen and phosphorus resorption in subtropical transitional forests.
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Ma B, Ge J, Zhao C, Xu W, Xu K, and Xie Z
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- 2024
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45. Plant economics spectrum governs leaf nitrogen and phosphorus resorption in subtropical transitional forests.
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Ma B, Ge J, Zhao C, Xu W, Xu K, and Xie Z
- Subjects
- Tropical Climate, China, Photosynthesis, Nitrogen metabolism, Phosphorus metabolism, Plant Leaves metabolism, Plant Leaves physiology, Forests, Trees metabolism, Trees physiology
- Abstract
Background: Leaf nitrogen (N) and phosphorus (P) resorption is a fundamental adaptation strategy for plant nutrient conservation. However, the relative roles that environmental factors and plant functional traits play in regulating N and P resorption remain largely unclear, and little is known about the underlying mechanism of plant functional traits affecting nutrient resorption. Here, we measured leaf N and P resorption and 13 plant functional traits of leaf, petiole, and twig for 101 representative broad-leaved tree species in our target subtropical transitional forests. We integrated these multiple functional traits into the plant economics spectrum (PES). We further explored whether and how elevation-related environmental factors and these functional traits collectively control leaf N and P resorption., Results: We found that deciduous and evergreen trees exhibited highly diversified PES strategies, tending to be acquisitive and conservative, respectively. The effects of PES, rather than of environmental factors, dominated leaf N and P resorption patterns along the elevational gradient. Specifically, the photosynthesis and nutrient recourse utilization axis positively affected N and P resorption for both deciduous and evergreen trees, whereas the structural and functional investment axis positively affected leaf N and P resorption for evergreen species only. Specific leaf area and green leaf nutrient concentrations were the most influential traits driving leaf N and P resorption., Conclusions: Our study simultaneously elucidated the relative contributions of environmental factors and plant functional traits to leaf N and P resorption by including more representative tree species than previous studies, expanding our understanding beyond the relatively well-studied tropical and temperate forests. We highlight that prioritizing the fundamental role of traits related to leaf resource capture and defense contributes to the monitoring and modeling of leaf nutrient resorption. Therefore, we need to integrate PES effects on leaf nutrient resorption into the current nutrient cycling model framework to better advance our general understanding of the consequences of shifting tree species composition for nutrient cycles across diverse forests., (© 2024. The Author(s).)
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- 2024
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46. Cross-cultural adaptation and validation of the short nutritional literacy scale for young adults (18-35years) and analysis of the influencing factors.
- Author
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Liu Y, Zhang L, Xu K, Ding Y, Li F, and Zhang T
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- Humans, Adolescent, Adult, Female, Young Adult, Male, China, Reproducibility of Results, Surveys and Questionnaires standards, Translations, Cross-Cultural Comparison, Nutritional Sciences education, Health Literacy
- Abstract
Objectives: This study translated the short nutrition literacy scale for young adults (18-35 years) into Chinese, examined its reliability and validity, and analyzed its influencing factors., Methods: The scale was translated using a modified Brislin translation model. A convenience sample of 508 cases was selected for the survey. Content validity, structural validity, Cronbach's alpha coefficient, and test-retest reliability were used to evaluate the scale's reliability and validity. To screen the factors influencing nutrition literacy in young people., Results: The Chinese version of the Item-Level Content Validity Index (I-CVI) was 0.833 ~ 1, and the Scale-Level Content Validity Index/Average (S-CVI/Ave) was 0.908. The cumulative variance contribution of the scale was 51.029%, and the model was generally well-fitted. The Cronbach's alpha coefficient and retest reliability of the scale were 0.826 and 0.818. The results showed that the level of education, mother's education, nutrition-related courses, and frequency of attention to nutritional health information were the factors influencing the nutritional literacy of young people., Conclusion: The Chinese version of the S-NutLit Scale can effectively assess the nutrients of young Chinese people. Low levels of education, low levels of education of mothers, lack of exposure to nutrition-related courses, and low frequency of attention to nutritional health information can lead to lower levels of nutritional literacy among young people., (© 2024. The Author(s).)
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- 2024
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47. Effects of major air pollutants on angina hospitalizations: a correlation study.
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Zhu A, Cao Y, Li C, Yu J, Liu M, Xu K, and Ruan Y
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- Humans, Female, Male, Middle Aged, Aged, Air Pollution adverse effects, Particulate Matter adverse effects, Particulate Matter analysis, Adult, Environmental Exposure adverse effects, China epidemiology, Seasons, Hospitalization statistics & numerical data, Air Pollutants adverse effects, Air Pollutants analysis, Angina Pectoris epidemiology
- Abstract
Background: Angina is a crucial risk signal for cardiovascular disease. However, few studies have evaluated the effects of ambient air pollution exposure on angina., Objective: We aimed to explore the short-term effects of air pollution on hospitalization for angina and its lag effects., Methods: We collected data on air pollutant concentrations and angina hospitalizations from 2013 to 2020. Distributed lag nonlinear model (DLNM) was used to evaluate the short-term effects of air pollutants on angina hospitalization under different lag structures. Stratified analysis by sex, age and season was obtained., Results: A total of 39,110 cases of angina hospitalization were included in the study. The results showed a significant positive correlation between PM
2.5 , SO2 , NO2 , and CO and angina hospitalization. Their maximum harmful effects were observed at lag0-7 (RR = 1.042; 95% CI: 1.017, 1.068), lag0-3 (RR = 1.067; 95% CI: 1.005, 1.133), lag0-6 (RR = 1.078; 95% CI: 1.041, 1.117), and lag0-6 (RR = 1.244; 95% CI: 1.109, 1.397), respectively. PM10 did not have an overall risk effect on angina hospitalization, but it did have a risk effect on women and the elderly. O3 was significantly negatively correlated with angina hospitalization, with the most pronounced effect observed at lag0-6 (RR = 0.960; 95% CI: 0.940, 0.982). Stratified analysis results showed that women and the elderly were more susceptible to pollutants, and the adverse effects of pollutants were stronger in the cold season., Conclusion: Short-term exposure to PM2.5 , SO2 , NO2 , and CO increases the risk of hospitalization for angina., (© 2024. The Author(s).)- Published
- 2024
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48. Self-assembled nanoparticles of costunolide and glycyrrhizic acid for enhanced ulcerative colitis treatment.
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Fu H, Zheng X, Xu K, Zhang Y, Wu M, and Xu M
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- Animals, Mice, Oxidative Stress drug effects, Antioxidants pharmacology, Disease Models, Animal, Male, Drug Synergism, Sesquiterpenes, Colitis, Ulcerative drug therapy, Nanoparticles, Glycyrrhizic Acid therapeutic use, Glycyrrhizic Acid pharmacology, Anti-Inflammatory Agents therapeutic use, Dextran Sulfate
- Abstract
Ulcerative colitis (UC) is a persistent inflammatory condition that specifically targets the colon and rectum. Existing therapies fail to adequately address the clinical requirements of people suffering from this ailment. Despite the acknowledged potential of nanomedicines in the field of anti-inflammatory treatment, their widespread use in clinical settings is impeded by their expensive nature and the uncertainty surrounding their safety profiles. This study illustrates that two naturally occurring phytochemicals, Costunolide (COS) and Glycyrrhizic acid (GA), form carrier-free, multifunctional spherical nanoparticles (NPs) through noncovalent interactions, such as π-π stacking and hydrogen bonding. The COS-GA NPs displayed a synergistic anti-inflammatory effect, providing much more evidently improved therapeutic benefits for dextran sodium sulfate (DSS)-induced UC mice due to more effective reduction in inflammation and oxidative stress than did equal dosages of COS or GA used alone. In addition, COS-GA NPs have biocompatibility and biosafety properties unique to them. This study will serve as affirmation of the potential of COS-GA NPs as innovative natural anti-inflammatory and antioxidant activities and also such agents as drug discovery in UC, leading possibly to better outcomes in people living with this disabling condition., (© 2024. The Author(s).)
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- 2024
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49. Effect of body mass index on 30-day complication rate and implant survival rate after simultaneous bilateral unicompartmental knee arthroplasty: a multicentre retrospective study.
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Xu K, Wang T, Yu T, Zhao X, Zhang Y, and Zhang L
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- Humans, Retrospective Studies, Male, Female, Middle Aged, Aged, Prosthesis Failure, Obesity complications, Obesity surgery, Osteoarthritis, Knee surgery, Reoperation statistics & numerical data, Length of Stay statistics & numerical data, Risk Factors, Treatment Outcome, Arthroplasty, Replacement, Knee adverse effects, Arthroplasty, Replacement, Knee instrumentation, Body Mass Index, Postoperative Complications epidemiology, Postoperative Complications etiology, Knee Prosthesis adverse effects
- Abstract
Objective: The practice of simultaneous bilateral unicompartmental knee arthroplasty (SBUKA) remains a topic of debate, particularly in patients with obesity. Thus, the purpose of this study was to assess the impact of body mass index (BMI) on the 30-day complication rate and the survival rate of the implant following SBUKA., Methods: We retrospectively examined the clinical records of 245 patients (490 knees) who underwent SBUKA at the Affiliated Hospital of Qingdao University and the Third Hospital of Hebei Medical University between January 2010 and December 2020. Patients were categorised based on their BMI at the time of surgery into four groups: normal weight (BMI 18.5 to 22.9 kg/m
2 ), overweight (BMI 23.0 to 24.9 kg/m2 ), obese (BMI 25.0 to 29.9 kg/m2 ), and severely obese (BMI ≥30 kg/m2 ). Variables such as length of hospital stay, duration of surgery, and costs of hospitalisation were compared across all groups. Additionally, we recorded the 30-day postoperative complication rate and the time from surgery to any required revision. The Kaplan-Meier survival analysis was employed to evaluate and compare the implant survival rates., Results: The follow-up period for the 245 patients ranged from 39 to 114 months, with an average of 77.05±18.71 months. The incidence of complications within 30 days post-surgery did not significantly differ across the groups (χ2 = 1.102, p = 0.777). The implant survival rates from the lowest to the highest BMI groups were 97.14%, 93.9%, 94.44%, and 96.43%, respectively. Both the rate of implant revision (χ2 =1.612, p = 0.657) and the survival curves of the implants (p = 0.639) showed no statistically significant differences among the groups., Conclusions: BMI did not influence the 30-day complication rate nor the survival rate of implants following SBUKA, suggesting that SBUKA should not be contraindicated based on BMI alone., (© 2024. The Author(s).)- Published
- 2024
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50. Development and validation of a scoring system to predict the mortality of hospitalized patients with SARS-CoV-2 Omicron: a nationwide, multicentre study.
- Author
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Guo W, Li X, Ding C, Dai X, Wu S, Shi Y, Jiang Y, Chang Y, Zhang Z, Liu S, Ma L, Zhang Y, Zhao T, Hu W, Xia J, Shangguan Y, and Xu K
- Subjects
- Humans, Male, Female, Middle Aged, China epidemiology, Aged, Risk Factors, Hospitalization statistics & numerical data, Adult, Prognosis, Fibrin Fibrinogen Degradation Products analysis, Fibrin Fibrinogen Degradation Products metabolism, Age Factors, Logistic Models, Neutrophils, Blood Urea Nitrogen, L-Lactate Dehydrogenase blood, COVID-19 mortality, SARS-CoV-2
- Abstract
Background: The Omicron variant broke out in China at the end of 2022, causing a considerable number of severe cases and even deaths. The study aimed to identify risk factors for death in patients hospitalized with SARS-CoV-2 Omicron infection and to establish a scoring system for predicting mortality., Methods: 1817 patients were enrolled at eight hospitals in China from December 2022 to May 2023, including 815 patients in the training group and 1002 patients in the validation group. Forty-six clinical and laboratory features were screened using LASSO regression and multivariable logistic regression., Results: In the training set, 730 patients were discharged and 85 patients died. In the validation set, 918 patients were discharged and 84 patients died. LASSO regression identified age, levels of interleukin (IL) -6, blood urea nitrogen (BUN), lactate dehydrogenase (LDH), and D-dimer; neutrophil count, neutrophil-to-lymphocyte ratio (NLR) as associated with mortality. Multivariable logistic regression analysis showed that older age, IL-6, BUN, LDH and D-dimer were significant independent risk factors. Based on these variables, a scoring system was developed with a sensitivity of 83.6% and a specificity of 83.5% in the training group, and a sensitivity of 79.8% and a sensitivity of 83.0% in the validation group., Conclusions: A scoring system based on age, IL-6, BUN, LDH and D-dime can help clinicians identify patients with poor prognosis early., (© 2024. The Author(s).)
- Published
- 2024
- Full Text
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