117 results on '"Yi DH"'
Search Results
2. 107A: ADIPONECTIN PROTECTS HUMAN MESENCHYMAL STEM CELLS AS SEED CELLS OF TISSUE ENGINEERED BLOOD VESSELS FROM SHEAR STRESS INDUCED INJURY THROUGH ATTENUATED NITRITIVE/OXIDATIVE STRESS AND REDUCED ICAM-1 ENHANCEMENT
- Author
-
Sun, Y, primary, Yi, W, additional, Wei, XF, additional, Xia, W, additional, Xia, WS, additional, Fan, X, additional, Gu, CH, additional, Lau, WB, additional, Ma, XL, additional, and Yi, DH, additional
- Published
- 2010
- Full Text
- View/download PDF
3. Corneal edema after cataract surgery: incidence and etiology.
- Author
-
Yi DH, Dana MR, Yi, David H, and Dana, M Reza
- Published
- 2002
4. Dynamic Treatment Strategy of Chinese Medicine for Metastatic Colorectal Cancer Based on Machine Learning Algorithm.
- Author
-
Xu YY, Li QY, Yi DH, Chen Y, Zhai JW, Zhang T, Sun LY, and Yang YF
- Subjects
- Humans, Female, Male, Middle Aged, Medicine, Chinese Traditional methods, Aged, Adult, Kaplan-Meier Estimate, Colorectal Neoplasms drug therapy, Colorectal Neoplasms pathology, Colorectal Neoplasms therapy, Machine Learning, Neoplasm Metastasis, Algorithms
- Abstract
Objective: To establish the dynamic treatment strategy of Chinese medicine (CM) for metastatic colorectal cancer (mCRC) by machine learning algorithm, in order to provide a reference for the selection of CM treatment strategies for mCRC., Methods: From the outpatient cases of mCRC in the Department of Oncology at Xiyuan Hospital, China Academy of Chinese Medical Sciences, 197 cases that met the inclusion criteria were screened. According to different CM intervention strategies, the patients were divided into 3 groups: CM treatment alone, equal emphasis on Chinese and Western medicine treatment (CM combined with local treatment of tumors, oral chemotherapy, or targeted drugs), and CM assisted Western medicine treatment (CM combined with intravenous regimen of Western medicine). The survival time of patients undergoing CM intervention was taken as the final evaluation index. Factors affecting the choice of CM intervention scheme were screened as decision variables. The dynamic CM intervention and treatment strategy for mCRC was explored based on the cost-sensitive classification learning algorithm for survival (CSCLSurv). Patients' survival was estimated using the Kaplan-Meier method, and the survival time of patients who received the model-recommended treatment plan were compared with those who received actual treatment plan., Results: Using the survival time of patients undergoing CM intervention as the evaluation index, a dynamic CM intervention therapy strategy for mCRC was established based on CSCLSurv. Different CM intervention strategies for mCRC can be selected according to dynamic decision variables, such as gender, age, Eastern Cooperative Oncology Group score, tumor site, metastatic site, genotyping, and the stage of Western medicine treatment at the patient's first visit. The median survival time of patients who received the model-recommended treatment plan was 35 months, while those who receive the actual treatment plan was 26.0 months (P=0.06)., Conclusions: The dynamic treatment strategy of CM, based on CSCLSurv for mCRC, plays a certain role in providing clinical hints in CM. It can be further improved in future prospective studies with larger sample sizes., (© 2024. The Chinese Journal of Integrated Traditional and Western Medicine Press and Springer-Verlag GmbH Germany, part of Springer Nature.)
- Published
- 2024
- Full Text
- View/download PDF
5. Particulate matter-mediated oxidative stress induces airway inflammation and pulmonary dysfunction through TXNIP/NF-κB and modulation of the SIRT1-mediated p53 and TGF-β/Smad3 pathways in mice.
- Author
-
Ha JH, Lee BW, Yi DH, Lee SJ, Kim WI, Pak SW, Kim HY, Kim SH, Shin IS, Kim JC, and Lee IC
- Subjects
- Animals, Humans, Mice, Carrier Proteins metabolism, Cytokines metabolism, Inflammation metabolism, Lung pathology, NF-kappa B genetics, NF-kappa B metabolism, Oxidative Stress, Sirtuin 1 genetics, Sirtuin 1 metabolism, Transforming Growth Factor beta metabolism, Tumor Suppressor Protein p53 metabolism, Smad3 Protein metabolism, Particulate Matter toxicity, Pulmonary Fibrosis chemically induced, Pulmonary Fibrosis pathology, Respiratory Tract Diseases chemically induced
- Abstract
Exposure to particulate matter is currently recognized as a serious aggravating factor of respiratory diseases. In this study, we investigated the effects of particulate matter (PM) on the respiratory system in BALB/c mice and NCI-H292 cells. PM (0, 2.5, 5 and 20 mg/kg) was administered to mice by intra-tracheal instillation for 7 days. After a 7 day-repeated treatment of PM, we evaluated inflammatory cytokines/cell counts in bronchoalveolar lavage fluid (BALF) and conducted pulmonary histology and functional test. We also investigated the role of TXNIP/NF-κB and SIRT1-mediated p53 and TGF-β/Smad3 pathways in PM-induced airway inflammation and pulmonary dysfunction. PM caused a significant increase in pro-inflammatory cytokines, inflammatory cell counts in bronchoalveolar lavage fluid. PM-mediated oxidative stress down-regulated thioredoxin-1 and up-regulated thioredoxin-interacting protein and activation of nuclear factor-kappa B in the lung tissue and PM-treated NCI-H292 cells. PM suppressed sirtuin1 protein levels and increased p53 acetylation in PM-exposed mice and PM-treated NCI-H292 cells. In addition, PM caused inflammatory cell infiltration and the thickening of alveolar walls by exacerbating the inflammatory response in the lung tissue. PM increased levels of transforming growth factor-β, phosphorylation of Smad3 and activation of α-smooth muscle actin, and collagen type1A2 in PM-exposed mice and PM-treated NCI-H292 cells. In pulmonary function tests, PM exposure impaired pulmonary function resembling pulmonary fibrosis, characterized by increased resistance and elastance of the respiratory system, and resistance, elastance, and damping of lung tissues, whereas decreased compliance of the respiratory system, forced expired volume and forced vital capacity. Overall, PM-mediated oxidative stress caused airway inflammation and pulmonary dysfunction with pulmonary fibrosis via TXNIP pathway/NF-κB activation and modulation of the SIRT1-mediated TGF-β/Smad3 pathways. The results of this study can provide fundamental data on the potential adverse effects and underlying mechanism of pulmonary fibrosis caused by PM exposure as a public health concern. Due to the potential toxicity of PM, people with respiratory disease must be careful with PM exposure., Competing Interests: Declaration of competing interest The authors declare no competing interests., (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2024
- Full Text
- View/download PDF
6. CDK1-SRC Interaction-Dependent Transcriptional Activation of HSP90AB1 Promotes Antitumor Immunity in Hepatocellular Carcinoma.
- Author
-
Zhang YJ and Yi DH
- Subjects
- Humans, Nerve Tissue Proteins, Proteomics, Transcriptional Activation, Receptors, Immunologic, Molecular Chaperones, Prognosis, HSP90 Heat-Shock Proteins genetics, CDC2 Protein Kinase genetics, Carcinoma, Hepatocellular genetics, Liver Neoplasms genetics
- Abstract
This study aimed to analyze multiomics data and construct a regulatory network involving kinases, transcription factors, and immune genes in hepatocellular carcinoma (HCC) prognosis. The researchers used transcriptomic, proteomic, and clinical data from TCGA and GEO databases to identify immune genes associated with HCC. Statistical analysis, meta-analysis, and protein-protein interaction analyses were performed to identify key immune genes and their relationships. In vitro and in vivo experiments validated the CDK1-SRC-HSP90AB1 network's effects on HCC progression and antitumor immunity. A prognostic risk model was developed using clinicopathological features and immune infiltration. The immune genes LPA, BIRC5, HSP90AB1, ROBO1, and CCL20 were identified as the key prognostic factors. The CDK1-SRC-HSP90AB1 network promoted HCC cell proliferation and migration, with HSP90AB1 being transcriptionally activated by the CDK1-SRC interaction. Manipulating SRC or HSP90AB1 reversed the effects of CDK1 and SRC on HCC. The CDK1-SRC-HSP90AB1 network also influenced HCC tumor formation and antitumor immunity. Overall, this study highlights the importance of the CDK1-SRC-HSP90AB1 network as a crucial immune-regulatory network in the HCC prognosis.
- Published
- 2023
- Full Text
- View/download PDF
7. Does the impact of bereavement vary between same and different gender partnerships? A representative national, cross-sectional study.
- Author
-
Timmins L, Pitman A, King M, Gao W, Johnson K, Yu P, Braybrook D, Roach A, Marshall S, Day E, Rose R, Clift P, Almack K, Yi DH, Bristowe K, and Harding R
- Subjects
- Female, Humans, Cross-Sectional Studies, Grief, Spouses, Bereavement, Sexual and Gender Minorities
- Abstract
Background: Data suggest poorer bereavement outcomes for lesbian, gay and bisexual people, but this has not been estimated in population-based research. This study compared bereavement outcomes for partners of same-gender and different-gender decedents., Methods: In this population-based, cross-sectional survey of people bereaved of a civil partner or spouse 6-10 months previously, we used adjusted logistic and linear regression to investigate outcomes of interest: (1) positive screen on Inventory of Complicated Grief (ICG), (2) positive screen on General Health Questionnaire (GHQ), (3) grief intensity (ICG) and (4) psychiatric symptoms (GHQ-12)., Results: Among 233 same-gender partners and 329 of different-gender partners, 66.1% [95% confidence interval (CI) 60.0-72.2] and 59.2% [95% CI (53.9-64.6)] respectively screened positive for complicated grief on the ICG, whilst 76.0% [95% CI (70.5-81.5)] and 69.3% [95% CI (64.3-74.3)] respectively screened positive on the GHQ-12. Same-gender bereaved partners were not significantly more likely to screen positive for complicated grief than different-gender partners [adjusted odds ratio (aOR) 1.56, 95% CI (0.98-2.47)], p = 0.059, but same-gender bereaved partners were significantly more likely to screen for psychiatric caseness [aOR 1.67 (1.02, 2.71) p = 0.043]. We similarly found no significant association of partner gender with grief intensity [ B = 1.86, 95% CI (-0.91to 4.63), p = 0.188], but significantly greater psychological distress for same-gender partners [ B = 1.54, 95% CI (-0.69-2.40), p < 0.001]., Conclusions: Same-gender bereaved partners report significantly more psychological distress. In view of their poorer sub-clinical mental health, clinical and bereavement services should refine screening processes to identify those at risk of poor mental health outcomes.
- Published
- 2023
- Full Text
- View/download PDF
8. How is community based 'out-of-hours' care provided to patients with advanced illness near the end of life: A systematic review of care provision.
- Author
-
Firth AM, Lin CP, Yi DH, Goodrich J, Gaczkowska I, Waite F, Harding R, Murtagh FE, and Evans CJ
- Subjects
- Humans, Cost-Benefit Analysis, Cost-Effectiveness Analysis, Death, Palliative Care, After-Hours Care
- Abstract
Background: Deaths in the community are increasing. However, community palliative care out-of-hours is variable. We lack detailed understanding of how care is provided out-of-hours and the associated outcomes., Aim: To review systematically the components, outcomes and economic evaluation of community-based 'out-of-hours' care for patients near the end of life and their families., Design: Mixed method systematic narrative review. Narrative synthesis, development and application of a typology to categorise out-of-hours provision. Qualitative data were synthesised thematically and integrated at the level of interpretation and reporting., Data Sources: Systematic review searching; MEDLINE, EMBASE, PsycINFO, CINAHL from January 1990 to 1st August 2022., Results: About 64 publications from 54 studies were synthesised (from 9259 retrieved). Two main themes were identified: (1) importance of being known to a service and (2) high-quality coordination of care. A typology of out-of-hours service provision was constructed using three overarching dimensions (service times, focus of team delivering the care and type of care delivered) resulting in 15 categories of care. Only nine papers were randomised control trials or controlled cohorts reporting outcomes. Evidence on effectiveness was apparent for providing 24/7 specialist palliative care with both hands-on clinical care and advisory care. Only nine publications reported economic evaluation., Conclusions: The typological framework allows models of out-of-hours care to be systematically defined and compared. We highlight the models of out-of-hours care which are linked with improvement of patient outcomes. There is a need for effectiveness and cost effectiveness studies which define and categorise out-of-hours care to allow thorough evaluation of services.
- Published
- 2023
- Full Text
- View/download PDF
9. Bioinformatics: A beacon of hope in identifying molecular target.
- Author
-
Wang KC, Wang ZG, Dai YB, Wu HF, and Yi DH
- Subjects
- Humans, Computational Biology
- Published
- 2021
- Full Text
- View/download PDF
10. Clinical profiles and outcomes of acute type A aortic dissection and intramural hematoma in the current era: lessons from the first registry of aortic dissection in China.
- Author
-
Duan WX, Wang WG, Xia L, Xue C, Yu B, Ren K, Yi W, Liang HL, Dong XC, Zuo J, Liu JC, Yu SQ, and Yi DH
- Subjects
- Acute Disease, China, Hematoma, Humans, Male, Middle Aged, Registries, Retrospective Studies, Time Factors, Treatment Outcome, Aortic Dissection diagnosis
- Abstract
Background: Acute type A aortic dissection (ATAAD) and acute type A intramural hematoma (ATAIMH) are life-threatening diseases with high mortality. To better understand their clinical features in the Chinese population, we analyzed the data from the first Registry of Aortic Dissection in China (Sino-RAD) to promote the understanding and management of the diseases., Methods: All patients with ATAAD and ATAIMH enrolled in Sino-RAD from January 1, 2012 to December 31, 2016 were involved. The data of patients' selection, history, symptoms, management, outcomes, and postoperation complications were analyzed in the study. The continuous variables were compared using the Student's t test for normal distributions and the Mann-Whitney U test for non-normal distributions. Categorical variables were compared using the Chi-square test or Fisher exact test., Results: A total of 1582 patients with ATAAD and 130 patients with ATAIMH were included. The mean age of all patients was 48.4 years. Patients with ATAAD were significantly younger than patients with ATAIMH (48.9 years vs. 55.6 years, P < 0.001). For the total cohort, males were dominant, but the male ratio of patients with ATAAD was significantly higher compared to those with ATAIMH (P = 0.01). The time range from the onset of symptom to hospitalization was 2.0 days. More patients of ATAIMH had hypertension than that of ATAAD (82.3% vs. 67.6%, P < 0.05). Chest and back pain were the most common clinical symptoms. Computerized tomography (CT) was the most common initial diagnostic imaging modality. 84.7% received surgical treatment and in-hospital mortality was 5.3%. Patients with ATAAD mainly received surgical treatment (89.6%), while most patients with ATAIMH received medical treatment (39.2%) or endovascular repair (35.4%)., Conclusions: Our study suggests that doctors should comprehensively use clinical examination and genetic background screening for patients with ATAAD and ATAIMH and further shorten the time range from symptoms onset to intervention, achieving early diagnosis and treatment, thereby reducing the mortality rate of patients with aortic dissection in China. We should standardize the procedures of aortic dissection treatment and improve people's understanding. Meanwhile, the curing and transferring efficiency should also be improved., (Copyright © 2021 The Chinese Medical Association, produced by Wolters Kluwer, Inc. under the CC-BY-NC-ND license.)
- Published
- 2021
- Full Text
- View/download PDF
11. [Analysis of adverse reactions of Xianling Gubao preparation based on real world SRS data].
- Author
-
Peng SY, Xie YM, Wang ZF, Zhang YL, and Yi DH
- Subjects
- Administration, Oral, Aged, Capsules, Dizziness, Female, Humans, Male, Middle Aged, Anaphylaxis, Drug-Related Side Effects and Adverse Reactions
- Abstract
From January 1, 2004 to July 21, 2016 a total of 2 796 cases of adverse drug reaction/adverse event(ADR/AE) after the use of Xianling Gubao Capsules/Tablets were reported by National Adverse Drug Reaction Monitoring Center. The following results were obtained by analyzing the reports of 2 796 cases of adverse drug reactions/adverse drug events after the use of Xianling Gubao Capsules/Tablets. A total of 75 patients, accounting for 2.68% of the total ADR/AE time, had severe ADR/AE events. Among them, 30 patients were aged 65 and above, accounting for 40.00% of the total number of severe ADR/AE patients. All the patients with ADR/AE were aged 45-64 years, which totaled 1 346 cases and took up 48.14% of the total patients with ADR/AE. All of ADR/AE cases and severe ADR/AE cases were orally given Xianling Gubao Capsules/Tablets. Females accounted for 52.50% and 76.00%, respectively, and the proportion of females was significantly higher than that of males. Among patients with a medical history of ADR/AE, severe ADR/AE was higher than the average, accounting for about 1.33%. The proportion of cases orally given 1-3 tablets of Xianling Gubao Capsules/Tablets in all ADR/AE cases and severe ADR/AE cases was 95.32% and 96.00%, which conformed to the usage in the package insert. All ADR/AE cases and severe ADR/AE cases orally given Xianling Gubao Capsules/Tablets twice daily occupied the highest proportions, or 77.00% and 61.00%, respectively. The proportion of severe ADR/AE cases orally given Xianling Gubao Capsules/Tablets was slightly higher than that of all ADR/AE cases in the medication frequency, which didn't conform to the usage in the package insert. All the symptoms of ADR/AE orally given Xianling Gubao Capsules showed many manifestations, and the top 10 symptoms were nausea, rash, itching, stomach dysfunction, vomiting, abdominal pain, dizziness, diarrhea, anaphylaxis, and reflux heartburn. The symptoms of severe ADR/AE after oral administration of Xianling Gubao Capsules were varied, and the top 10 symptoms were abnormal liver function, rash, suffocation, itching, dizziness, vomiting, anaphylaxis, abdominal pain, weakness, and convulsions. Abnormal liver function accounted for 44.12%. All of ADR/AE cases occurred within 2 days after oral administration of Xianling Gubao Capsules/Tablets, accounting for 54.26%. Severe ADR/AE occurred within 2 days after the use of Xianling Gubao Capsules/Tablets, accounting for 25.34%. The proportion of ADR/AE cases occurring within 15 days after oral administration of Xianling Gubao Capsules/Tablets increased again(57.33%). The overall trend contained two peaks.
- Published
- 2020
- Full Text
- View/download PDF
12. [Analysis of Qingkailing Injection in treatment of combined medication features of 2 147 cases of upper respiratory tract infection].
- Author
-
Zhao SC, Wei RL, Xie YM, Wang LX, Wang Q, and Yi DH
- Subjects
- Aged, China, Humans, Injections, Medicine, Chinese Traditional, Middle Aged, Drugs, Chinese Herbal therapeutic use, Respiratory Tract Infections drug therapy
- Abstract
Acute upper respiratory infection is one of the common infectious diseases,especially in the elderly people. Qingkailing Injection has the effect of clearing away heat and detoxifying. It can be used for external wind heat,upper respiratory tract infection,viral cold,etc. Based on 2 147 cases of upper respiratory tract infection patients using Qingkailing Injection in the medical electronic data warehouse of the information system of 16 large class-A hospitals constructed by the Institute of Basic Research in Clinical Medicine,China Academy of Chinese Medical Sciences,description analysis,Apriori calculation and recurrent network analysis were used to analyze the effect of Qingkailing Injection on upper respiratory tract infection. The clinical characteristics and the law of combined use of drugs can provide reference for the mining of clinical diagnosis and treatment characteristics and the construction of optimal and effective programs and paths. 2 147 patients with upper respiratory tract infection who used Qingkailing Injection were mostly middle-aged and elderly people over 45 years old,often combined with hypertension,ischemic cerebrovascular disease,coronary heart disease,diabetes,etc.; in treatment,it was more common to use Qingkailing Injection in combination with hormones,antipyretics and analgesics,antibiotics,nutritional support agents,antitussive,expectorant and antiasthmatic drugs,as well as traditional Chinese medicine Jiebiao agents and blood management agents. The combination of potassium chloride injection and cephalosporin injection is the most commonly used in combination with two kinds of Western medicine( 33. 2%); the combination of Shuanghuanglian and Ganmao Qingre Granules is the most commonly used in combination with two kinds of traditional Chinese medicine( 9. 13%); through the calculation of complex network group module,it is found that Qingkailing Injection is often associated with antibiotics,antipyretic and analgesic drugs,antitussive,expectorant and antiasthmatic drugs,antiviral drugs and anti infection drugs. Drugs,nutritional support agents,bronchodilators,immunomodulators and other chemical drugs are often used in combination with Chinese medicine,such as Jiebiao agents,expectorants,Qingre agents,resuscitation agents,Qufeng agents,tonics,Liqi agents,which may be related to both the treatment of upper respiratory tract infection and the basic diseases of middle-aged and elderly patients,with the theoretical characteristics of " combination of disease and syndrome,corresponding formula and syndrome". Based on the real world big data complex network group module mining results provide clues for the clinical optimization scheme and path construction,and provide signals and ideas for further causal research.
- Published
- 2019
- Full Text
- View/download PDF
13. The Culture Dish Surface Influences the Phenotype and Cytokine Production of Human Monocyte-Derived Dendritic Cells.
- Author
-
Sauter A, Yi DH, Li Y, Roersma S, and Appel S
- Subjects
- Adult, Aged, Dendritic Cells cytology, Female, Humans, Male, Middle Aged, Monocytes cytology, Antigens, Differentiation immunology, Cell Culture Techniques, Cytokines immunology, Dendritic Cells immunology, Monocytes immunology
- Abstract
Monocyte-derived dendritic cells (moDC) are an important scientific and clinical source of functional dendritic cells (DC). However, the optimization of the generation process has to date mainly been limited to the variation of soluble factors. In this study, we investigated the impact of the cell culture dish surface on phenotype and cytokine profile. We compared a standard cell culture dish to a non-adherent culture dish for two immunogenic maturation conditions, two tolerogenic conditions, and an unstimulated control. Phenotype, cytokine profile and T cell stimulatory capacity were determined after a 3-day culture. Light microscopy revealed an increase in homotypic cluster formation correlated with the use of non-adherent surfaces, which could be reduced by using blocking antibodies against CD18. All surface markers analyzed showed moderate to strong differences depending on the culture dish surface, including significantly decreased expression of key maturation markers such as CD80, CD86, and CCR7 as well as PD-L1 on cells stimulated with the Jonuleit cytokine cocktail cultured on a non-adherent surface. Significant differences in the secretion of many cytokines were observed, especially for cells stimulated with LPS, with over 10-fold decreased secretion of IL-10, IL12-p40, and TNF-α from the cells cultured on the non-adherent surface. All immunogenic moDC populations showed similar capacity to induce antigen-specific T cells. These results provide evidence that the DC phenotype depends on the surface used during moDC generation. This has important implications for the optimization of DC-based immunotherapy development and underlines that the local surrounding can interfere with the final DC population beyond the soluble factors., (Copyright © 2019 Sauter, Yi, Li, Roersma and Appel.)
- Published
- 2019
- Full Text
- View/download PDF
14. Poly(3-hydroxybutyrate-co-3-hydroxyvalerate-co-3-hydroxyhexanoate) terpolymer production from volatile fatty acids using engineered Ralstonia eutropha.
- Author
-
Jung HR, Jeon JM, Yi DH, Song HS, Yang SY, Choi TR, Bhatia SK, Yoon JJ, Kim YG, Brigham CJ, and Yang YH
- Subjects
- Fatty Acids, Volatile metabolism, Genetic Engineering, Polymers metabolism, Ralstonia genetics
- Abstract
One of the advantages of microbial synthesis of polyhydroxyalkanoates (PHAs) is the production of diverse polymers with different properties by the addition of different monomers, such as 3-hydroxybutyrate (3HB), 3-hydroxyvalerate (3HV), and 3-hydroxyhexanoate (3HHx). Considering the number of possible variables, terpolymers can have more variations than copolymers. In this study, we aimed to synthesize the terpolymer P(3HB-co-3HV-co-3HHx) from volatile fatty acids such as propionate and butyrate using the recombinant Ralstonia eutropha strain (Re2133/pCB81), containing deletions in the phaB1, phaB2, and phaB3 genes, and overexpression of synthetic PHA operon (phaC2, phaA, phaJ). This strain produced terpolymers depending on the ratio of two different carbon sources, namely, propionic and butyric acids; however, wild type R. eutropha could not produce the same type of polymer. The incorporation of 3-hydroxyvalerate and 3-hydroxyhexanoate monomers was confirmed by gas chromatography and H-nuclear magnetic resonance spectroscopy, and the parameters affecting the terpolymer composition were obtained based on regression. In addition, the thermal analysis showed that this terpolymer has properties different from those of the copolymer, obtained from the same composition of volatile acids. Depending on the ratio of two volatile acids, the composition of the terpolymer can be regulated resulting in different properties., (Copyright © 2019 Elsevier B.V. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
15. Sanjin tablets for acute uncomplicated lower urinary tract infection (syndrome of dampness-heat in the lower jiao): protocol for randomized, double-blind, double-dummy, parallel control of positive drug, multicenter clinical trial.
- Author
-
Lyu J, Xie YM, Gao Z, Shen JW, Deng YY, Xiang ST, Gao WX, Zeng WT, Zhang CH, Yi DH, Wang LX, and Wang ZF
- Subjects
- Administration, Oral, Adult, Anti-Bacterial Agents adverse effects, China, Double-Blind Method, Drugs, Chinese Herbal adverse effects, Female, Humans, Levofloxacin adverse effects, Lower Urinary Tract Symptoms diagnosis, Lower Urinary Tract Symptoms microbiology, Male, Middle Aged, Multicenter Studies as Topic, Randomized Controlled Trials as Topic, Tablets, Time Factors, Treatment Outcome, Urinary Tract Infections diagnosis, Urinary Tract Infections microbiology, Young Adult, Anti-Bacterial Agents administration & dosage, Drugs, Chinese Herbal administration & dosage, Levofloxacin administration & dosage, Lower Urinary Tract Symptoms drug therapy, Urinary Tract Infections drug therapy
- Abstract
Background: Acute uncomplicated lower urinary tract infection (UTI) is one of the most common bacterial infections. Patients usually present with dysuria, urinary urgency, urinary frequency, and suprapubic pain or tenderness. Approximately 150 million people are diagnosed with UTI each year worldwide. The high recurrence rate of lower UTI is a common problem of clinical treatment. The misuse of antibiotics has led to the emergence of a number of resistant bacterial strains. Thus, traditional Chinese medicine is considered as an alternative option for treating acute uncomplicated lower UTI. Thus, this study aims to evaluate the efficacy and safety of Sanjin tablets (SJT) for the treatment of acute uncomplicated lower UTI, explore whether SJT can reduce or substitute the use of antibiotics, and reduce the recurrence rate in the treatment of acute uncomplicated lower UTI., Methods/design: In this study, a randomized, double-blind, double-dummy, parallel control of positive drug, multicenter clinical study will be established. A total of 252 patients with acute uncomplicated lower UTI (syndrome of dampness-heat in the lower jiao) will be randomly allocated in the ratio of 1:1:1 to three groups: experimental group; control group 1; and control group 2. The experimental group receives Sanjin tablets plus levofloxacin tablets (LT) placebo; the control group 1 receives LT plus SJT placebo; and the control group 2 receives SJT plus LT on the first five days, SJT plus LT placebo on the last two days. Each group will be treated for seven days and followed-up 1-2 times. The primary outcome measures of effective rate and recurrence rate are symptoms. Secondary outcome measures of effective rate and recurrence rate are the urine leukocytes, bacteriology examination, and safety assessment. Outcomes will be assessed at baseline and after treatment., Discussion: This study protocol will provide the research data of efficacy and safety of SJT for the treatment of acute uncomplicated lower UTI. The first aim is to determine whether Sanjin tablets can reduce the use of antibiotics; the second aim is to determine whether Sanjin tablets can substitute the use of antibiotics. The recurrence rate will be assessed after cured to determine whether SJT can reduce the recurrence rate. The results of this study will improve the rational use of drugs, especially the rational application of antibiotics. It will also enable safety evaluation from laboratory indices and adverse events, which will provide reliable evidence for clinical treatment., Trial Registration: ClinicalTrials.gov, NCT03658291 . Registered on 4 September 2018.
- Published
- 2019
- Full Text
- View/download PDF
16. Three-dimensional electroactive ZnO nanomesh directly derived from hierarchically self-assembled block copolymer thin films.
- Author
-
Subramanian A, Doerk G, Kisslinger K, Yi DH, Grubbs RB, and Nam CY
- Abstract
Three-dimensional (3D) nanoarchitectures can offer enhanced material properties, such as large surface areas that amplify the structures' interaction with environments making them useful for various sensing applications. Self-assembled block copolymers (BCPs) can readily generate various 3D nanomorphologies, but their conversion to useful inorganic materials remains one of the critical challenges against the practical application of self-assembled BCPs. This work reports the vapor-phase infiltration synthesis of optoelectrically active, 3D ZnO nanomesh architectures by combining hierarchical successive stacking of self-assembled, lamellar-phase polystyrene-block-poly(2-vinylpyridine) (PS-b-P2VP) BCP thin films and a modified block-selective vapor-phase material infiltration protocol. The 3D ZnO nanomesh exhibits optoelectrical functionality, featuring stack-layer-number-dependent electrical conductance resembling the percolative transport originating from the intrinsic morphological network connectivity of the lamellar BCP pattern with symmetric block ratio. The results not only illustrate the first demonstration of electrical functionality based on the ZnO nanoarchitecture directly generated by the infiltration synthesis in self-assembled BCP thin films but also present a new, large-area scalable, metal oxide thin film nanoarchitecture fabrication method utilizing industry-compatible polymer solution coating and atomic layer deposition. Given the large surface area, three-dimensional porosity, and readily scalable fabrication procedures, the generated ZnO nanomesh promises potential applications as an efficient active medium in chemical and optical sensors.
- Published
- 2019
- Full Text
- View/download PDF
17. Effect of the combined isotonic technique for proprioceptive neuromuscular facilitation and taping on pain and grip strength in patients with lateral epicondylitis: a randomized clinical trial.
- Author
-
Kim BR, Yi DH, and Yim JE
- Abstract
The purpose of this study was to investigate the effect of the combined isotonic technique (CIT) for proprioceptive neuromuscular facilitation and taping intervention on pain and grip strength in patients with lateral epicondylitis (LE). Twenty subjects with LE were treated 5 times a week for 4 weeks. Patients were randomized to an experimental group (n=10) with taping after CIT and a control group (n=10) with taping after stretching. A visual analogue scale (VAS) was used to measure changes in pain. A hand dynamometer was used to measure grip strength. A paired t -test was performed to compare differences after the intervention. We used an independent t -test to compare the differences between experimental and control groups. All statistical significance levels were set at α=0.05. Within-group changes in VAS and grip strength were significantly different in both the experimental and control groups ( P <0.05). Between-groups after intervention, VAS and grip strength showed more improvement in the experimental group than in the control group ( P <0.05). This study showed that by applying CIT and taping to patients with LE, significant improvement in pain and grip strength could be obtained. Since the intervention had positive effects on LE by reducing pain and increasing grip strength, additional studies on efficient intervention will be conducted to develop exercise programs., Competing Interests: CONFLICT OF INTEREST No potential conflict of interest relevant to this article was reported.
- Published
- 2019
- Full Text
- View/download PDF
18. Isolation and Characterization of Bifidobacterium longum subsp. longum BCBL-583 for Probiotic Applications in Fermented Foods
- Author
-
Yi DH, Kim YT, Kim CH, Shin YS, and Lee JH
- Subjects
- Adaptation, Biological, Adult, Bifidobacterium longum enzymology, Bile Acids and Salts metabolism, Cholesterol metabolism, Feces microbiology, Female, Gastric Acid metabolism, Humans, Microbial Viability, Mucins metabolism, Oxygen metabolism, Probiotics metabolism, RNA, Ribosomal, 16S genetics, Thermotolerance, Bifidobacterium longum isolation & purification, Bifidobacterium longum physiology, Fermented Foods microbiology, Food Microbiology, Probiotics isolation & purification
- Abstract
Recent human gut microbiome studies have supported that the genus Bifidobacterium is one of the most beneficial bacteria for human intestinal health. To develop a new probiotic strain for functional food applications, fourteen fecal samples were collected from healthy Koreans and the strain BCBL-583 was newly selected and isolated from a 25-year-old Korean woman's fecal sample using the selective medium for Bifidobacterium . Subsequent fructose-6-phosphate phosphoketolase (F6PPK) test and 16S rRNA gene sequencing analysis of the strain BCBL-583 confirmed that it belongs to B. longum subsp. longum . The stress resistance tests showed that it has oxygen and heat tolerance activities (5- and 3.9-fold increase for 24 h at 60 and 120 rpm, respectively; 78.61 ± 6.67% survival rate at 45°C for 24 h). In addition, gut environment adaptation tests revealed that this strain may be well-adapted in the gut habitat, with gastric acid/bile salt resistance (85.79 ± 1.53%, survival rate under 6 h treatments of gastric acid and bile salt) and mucin adhesion (73.72 ± 7.36%). Furthermore, additional tests including cholesterol lowering assay showed that it can reduce 86.31 ± 1.85% of cholesterol. Based on these results, B. longum BCBL-583 has various stress resistance for survival during food processing and environmental adaptation activities for dominant survival in the gut, suggesting that it could be a good candidate for fermented food applications as a new probiotic strain.
- Published
- 2018
- Full Text
- View/download PDF
19. 3-Day monocyte-derived dendritic cells stimulated with a combination of OK432, TLR7/8 ligand, and prostaglandin E 2 are a promising alternative for cancer immunotherapy.
- Author
-
Yi DH, Stetter N, Jakobsen K, Jonsson R, and Appel S
- Subjects
- Antineoplastic Agents pharmacology, Cell Differentiation, Cell Movement, Cells, Cultured, Cytokines, Dendritic Cells cytology, Dendritic Cells drug effects, Humans, Ligands, Monocytes cytology, Monocytes drug effects, Neoplasms immunology, Neoplasms therapy, Oxytocics pharmacology, Dendritic Cells immunology, Dinoprostone pharmacology, Immunotherapy, Monocytes immunology, Picibanil pharmacology, Toll-Like Receptor 7 metabolism, Toll-Like Receptor 8 metabolism
- Abstract
Numerous trials using dendritic cell (DC)-based vaccinations for the treatment of cancer are being carried out. However, an improvement of the quality of DC used is highly warranted. We here generated human monocyte-derived dendritic cells using a 3 day protocol and stimulated the cells using a combination of OK432 (Picibanil), TLR7/8 ligand CL097, and reduced amounts of prostaglandin (PG)E
2 . We analyzed phenotype, migratory, and T-cell stimulatory capacity compared to a cytokine cocktail consisting of IL-1β, IL-6, TNF, and PGE2 . The OK432 cocktail stimulated cells had a similar mature phenotype with upregulated co-stimulatory molecules, HLA-DR and CCR7 as the cytokine cocktail-matured cells and a similar cytokine profile except increased amounts of IL-12p70. Chemotaxis towards CCL19 was reduced compared to the cytokine cocktail, but increased compared to OK432 alone. The T-cell stimulatory capacity was similar to the cytokine cocktail stimulated cells. In conclusion, the OK432 cocktail has the advantage of inducing IL-12p70 production without impairing phenotype or T-cell stimulatory capacity of the cells and might, therefore, be an advantageous alternative to be used in DC-based immunotherapy.- Published
- 2018
- Full Text
- View/download PDF
20. Cohort Study on Prognosis of Patients with Metastatic Colorectal Cancer Treated with Integrated Chinese and Western Medicine.
- Author
-
Zhang T, He WT, Zi MJ, Song G, Yi DH, and Yang YF
- Subjects
- Aged, Cohort Studies, Colorectal Neoplasms mortality, Disease-Free Survival, Female, Humans, Male, Middle Aged, Prognosis, Survival Rate, Antineoplastic Agents therapeutic use, Colorectal Neoplasms drug therapy, Colorectal Neoplasms pathology, Drugs, Chinese Herbal therapeutic use, Integrative Medicine
- Abstract
Objective: To investigate the efficacy of integrated Chinese and Western medicine (IM) in the treatment of metastatic colorectal cancer (mCRC) in a cohort study., Methods: The survival outcome of patients receiving IM was compared with that of patients receiving Western medicine alone. The study design was adopted with "continuous administration of Chinese medicine for ⩾ 3 months" as the exposure factor. Patients who met this exposure factor were assigned to the IM cohort (Group A, 110 patients). Patients who did not meet this exposure factor were assigned to the Western medicine cohort (Group B, 225 patients). The overall survival (OS), progression-free survival (PFS), and 1st year, 2nd year, and 3rd year survival in the two cohorts were compared., Results: The median OS in Group A and B were 18 months [95% confidence interval (CI) 15-21] and 16 months (95% CI 14-18), respectively, and the median PFS in Group A and B were 6 months (95% CI 4-7) and 5 months (95% CI 4-6), respectively. No statistically significant differences were observed between the groups (P=0.186, P=0.223). Group A demonstrated significantly longer OS and PFS than Group B in the following subgroups: female patients, patients with lesions in the right half of the colon, and those who received first-line treatment (P<0.05). In the subgroup of elderly patients (age>65 years), the OS in Group A was longer than that in Group B (P<0.05)., Conclusion: IM could prolong the survival of patients with mCRC. (Registry No. ChiCTR-IOR-17010497).
- Published
- 2018
- Full Text
- View/download PDF
21. Efficacy and Safety of Quxie Capsule () in Metastatic Colorectal Cancer: A Double-Blind Randomized Placebo Controlled Trial.
- Author
-
Zhang T, Yang YF, He B, Yi DH, Hao J, and Zhang D
- Subjects
- Aged, Capsules, Disease-Free Survival, Double-Blind Method, Female, Humans, Male, Middle Aged, Neoplasm Metastasis, Placebos, Colorectal Neoplasms drug therapy, Colorectal Neoplasms pathology, Drugs, Chinese Herbal adverse effects, Drugs, Chinese Herbal therapeutic use
- Abstract
Objective: To verify the efficacy and safety of Quxie Capsule () in patients with metastatic colorectal cancer (mCRC)., Methods: The present study was a randomized, double-blind, placebo-controlled trial. Sixty patients with mCRC were randomized into two groups at a 1:1 ratio by sealed envelope. The treatment group received conventional therapy combined with Quxie Capsule for 3 months. The control group was treated with conventional therapy combined with placebo for 3 months. Main outcome measures were overall survival (OS) and progression-free survival (PFS). Subgroup analysis was performed according to age, right or left-sided disease, and second-line therapy to determine the differences in PFS and OS between the two groups. Patients were followed up every 3 months until Dec 31st 2016., Results: The median OS was 23 months in the treatment group [95% confidence interval (CI): 15-not calculated] vs. 14 months in the control group (95% CI: 11-22, P=0.060). The OS of the treatment group tended to be longer than that of the control group (P>0.05). In the subgroups of patients <65 years old, left-sided colon, and 2nd-line therapy, the treatment group showed a significant survival benefit compared with the control group (P=0.006, 0.038, 0.013, respectively). There were no significant differences between the two groups in PFS (P>0.05). Safety analysis showed no severe hematological toxicity or liver and renal function injury in the treatment group., Conclusions: Quxie Capsule showed good safety and efficacy, and could prolong the OS of patients with mCRC. (Registration No. ChiCTR-IOR-16009733).
- Published
- 2018
- Full Text
- View/download PDF
22. A New Localization System for Indoor Service Robots in Low Luminance and Slippery Indoor Environment Using Afocal Optical Flow Sensor Based Sensor Fusion.
- Author
-
Yi DH, Lee TJ, and Cho DD
- Abstract
In this paper, a new localization system utilizing afocal optical flow sensor (AOFS) based sensor fusion for indoor service robots in low luminance and slippery environment is proposed, where conventional localization systems do not perform well. To accurately estimate the moving distance of a robot in a slippery environment, the robot was equipped with an AOFS along with two conventional wheel encoders. To estimate the orientation of the robot, we adopted a forward-viewing mono-camera and a gyroscope. In a very low luminance environment, it is hard to conduct conventional feature extraction and matching for localization. Instead, the interior space structure from an image and robot orientation was assessed. To enhance the appearance of image boundary, rolling guidance filter was applied after the histogram equalization. The proposed system was developed to be operable on a low-cost processor and implemented on a consumer robot. Experiments were conducted in low illumination condition of 0.1 lx and carpeted environment. The robot moved for 20 times in a 1.5 × 2.0 m square trajectory. When only wheel encoders and a gyroscope were used for robot localization, the maximum position error was 10.3 m and the maximum orientation error was 15.4°. Using the proposed system, the maximum position error and orientation error were found as 0.8 m and within 1.0°, respectively., Competing Interests: The authors declare no conflict of interest.
- Published
- 2018
- Full Text
- View/download PDF
23. Lipopolysaccharide impairs permeability of pulmonary microvascular endothelial cells via Connexin40.
- Author
-
Zhou HS, Li M, Sui BD, Wei L, Hou R, Chen WS, Li Q, Bi SH, Zhang JZ, and Yi DH
- Subjects
- Animals, Cells, Cultured, Connexins genetics, Dose-Response Relationship, Drug, Endothelial Cells metabolism, Endothelial Cells pathology, Gap Junctions drug effects, Gap Junctions metabolism, Gap Junctions pathology, Microvessels metabolism, Microvessels pathology, NF-kappa B metabolism, Phosphorylation, Protein Kinase C metabolism, Rats, Signal Transduction drug effects, Time Factors, Gap Junction alpha-5 Protein, Capillary Permeability drug effects, Connexins metabolism, Endothelial Cells drug effects, Lipopolysaccharides toxicity, Lung blood supply, Microvessels drug effects
- Abstract
The endotoxin lipopolysaccharide (LPS)-induced pulmonary endothelial barrier disruption is a key pathogenesis of acute lung injury (ALI) and acute respiratory distress syndrome (ARDS). However, the molecular mechanisms underlying LPS-impaired permeability of pulmonary microvascular endothelial cells (PMVECs) are not fully understood. Gap junctions, particularly Connexin40 (Cx40), are necessary for the maintenance of normal vascular function. In this study, we for the first time investigated the role of Cx40 in LPS-impaired permeability of PMVECs and provided potential therapeutic approaches based on mechanistic findings of Cx40 regulation by LPS stimuli. Rat PMVECs were isolated, cultured and identified with cell morphology, specific markers, ultrastructural characteristics and functional tests. Western blot analysis demonstrated that Cx40 is the major connexin highly expressed in PMVECs. Furthermore, by inhibiting Cx40 in a time-dependent manner, LPS impaired gap junction function and induced permeability injury of PMVECs. The key role of Cx40 decline in mediating detrimental effects of LPS was further confirmed in rescue experiments through Cx40 overexpression. Mechanistically, LPS stress on PMVECs inhibited the protein kinase C (PKC) pathway, which may synergize with the inflammatory nuclear factor kappaB (NFκB) signaling activation in suppressing Cx40 expression level and phosphorylation. Moreover, through pharmacological PKC activation or NFκB inhibition, Cx40 activity in PMVECs could be restored, leading to maintained barrier function under LPS stress. Our findings uncover a previously unrecognized role of Cx40 and its regulatory mechanisms in impaired endothelial integrity under endotoxin and inflammation, shedding light on intervention approaches to improve pulmonary endothelial barrier function in ALI and ARDS., (Copyright © 2017 Elsevier Inc. All rights reserved.)
- Published
- 2018
- Full Text
- View/download PDF
24. Diagnosis and staging of caries using spectral factors derived from the blue laser-induced autofluorescence spectrum.
- Author
-
Ko CC, Yi DH, Lee DJ, Kwon J, Garcia-Godoy F, and Kwon YH
- Subjects
- Dental Caries diagnostic imaging, Dental Caries pathology, Dental Enamel diagnostic imaging, Dental Enamel pathology, Dental Instruments, Dentin diagnostic imaging, Dentin pathology, Fluorescence, Humans, Radiography, Dental, Digital statistics & numerical data, Reproducibility of Results, Sensitivity and Specificity, Spectroscopy, Fourier Transform Infrared methods, Statistics, Nonparametric, Tooth diagnostic imaging, Tooth pathology, Tooth Demineralization diagnosis, X-Ray Microtomography, Dental Caries diagnosis, Diagnostic Techniques and Procedures instrumentation, Lasers, Spectrometry, Fluorescence methods
- Abstract
Objective: The aim of this study was to identify the factors derived from the 405nm laser-induced autofluorescence (AF) spectra that could be used to diagnose and stage caries., Materials and Methods: Teeth (20 teeth per stage) were classified as sound, stage II, III, and IV based on a visual and tactile inspection. The specimens were re-examined and reclassified based on micro-CT analysis. From the teeth, the AF was obtained using a 405nm laser. Three spectral factors (spectral slope at 550-600nm, area under the curve at 500-590nm, and two-peak ratio between 625 and 667nm) were derived from the AF spectra. Using these factors, the diagnosis and staging of caries were tested, and the results were compared with those of DIAGNOdent., Results: After micro-CT analysis, only 13, 11, and 13 teeth were reclassified as stages II, III, and IV, respectively. The reclassified groups showed less data overlap between the stages, and the spectral slope was 40.1-74.6, 27.5-39.6, 11.1-27.4, and 1.0-9.7 for sound, stage II, III, and IV, respectively. The differentiation of stages III and IV using DIAGNOdent appeared to be difficult due to the considerable data overlap., Conclusion: Among the factors tested, the spectral slope at 550-600nm showed the best match with the caries specimens, in which their stage had been identified precisely., Clinical Significance: The 405nm laser-induced AF spectra can be applied to the diagnosis and staging of caries alone or in conjunction with conventional methods, such as visual, tactile, and X-ray inspection., (Copyright © 2017 Elsevier Ltd. All rights reserved.)
- Published
- 2017
- Full Text
- View/download PDF
25. [Post-marketing safety surveillance of Diemailing Kudiezi injection: real world study in 30 233 cases].
- Author
-
Liao X, Yu DD, Xie YM, Zhang YL, He Y, Zhang Y, Liu Y, Yi DH, and Wang YY
- Subjects
- Humans, Prospective Studies, Drugs, Chinese Herbal adverse effects, Product Surveillance, Postmarketing
- Abstract
This study was aimed to obtain the incidence of adverse drug reaction (ADR) of Diemailing Kudiezi injection, explore its characteristics, related risk factors and application in real world. A prospective single cohort study was conducted from 25 hospitals (including Chinese medicine hospitals and Western medicine hospitals) for 4 years. 30 233 consecutive inpatients using Diemailing Kudiezi injection were observed. Their general information was analyzed by using statistic frequency description. Association rules were used to analyze the correlation between comorbidities or drug combinations; the influential factors for ADRs were initially screened by using cross contingency method and Chi-square test, and then Group LASSAO method was used for further analysis. 54 patients with adverse drug events and 30 patients with ADRs were reported among 30 233 patients, with a total ADR incidence of 0.099%[95%CI (0.06%, 0.13%)]. There were 27 patients identified as the "general" ADR, one patients with "severe" ADR (anaphylactic shock) and two patients with new ADRs. ADR occurred most in 30 min after using Diemailing Kudiezi injection, in a total of 16 patients. The most ADRs were palpitation, vomiting, chills, pruritus and rash, 6 times for each symptom. Diemailing Kudiezi injection was well tolerated in the general population. The overall incidence of adverse reactions was rare, with high safety. However, the real incidence of ADRs may be underestimated in this study, and the blood samples were not obtained for the patients, so further mechanism studies shall be conducted., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2017
- Full Text
- View/download PDF
26. [Intensive hospital monitoring of Shuxuening injection in 30 209 cases].
- Author
-
Jiang JJ, Xie YM, Zhang Y, Li MQ, Zhao YB, Wen ZH, Li XL, Yi DH, and Zhang YK
- Subjects
- Humans, Injections, Drugs, Chinese Herbal adverse effects, Product Surveillance, Postmarketing
- Abstract
In order to obtain the characteristics and incidence of adverse reactions of Shuxuening injection (Xingxue), the design method of a multi-center, large sample intensive monitoring in the hospitals was adopted. The hospitalized patients with use of Shuxuening injection from 27 medical institutions were enrolled as the research subjects to monitor their entire process of treatment cycle. The main content of monitoring included the patients' general information, diagnostic information, medication information, and adverse event information. A total of 30 209 patients with Shuxuening injection were enrolled; adverse reactions occurred in 34 cases, with an incidence of 0.113%, which belonged to the rare adverse reactions. Adverse reactions were characterized by headache, dizziness, pruritus, palpitations, nausea, et al. All the above results showed that Xingxue Shuxuening injection had high safety in clinical application., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2017
- Full Text
- View/download PDF
27. Reply.
- Author
-
Henderson BA, Yi DH, Constantine JB, and Geneva II
- Published
- 2017
- Full Text
- View/download PDF
28. [Correlation Study on Risk Factors and CM Symptoms in Postmenopausal Osteoporosis].
- Author
-
Shen H, Wei X, Xie YM, Yang J, Zeng XB, Yi DH, Yu K, and Kang S
- Subjects
- Adult, Aged, Beijing, Bone Density, Correlation of Data, Female, Humans, Middle Aged, Risk Factors, Osteoporosis, Postmenopausal epidemiology
- Abstract
Objective To observe the correlation between risk factors and symptoms of Chinese medicine (CM) in postmenopausal osteoporosis (OP) of females aged between 40 and 65. Methods Registry method was used in this study. Risk factors and information on symptoms of CM collected from 1 823 OP high risk females (40 -65 years old) in Dongcheng District of Beijing and Xuhui District of Shanghai (collected in our previous research). Meanwhile, Cox proportional hazard model was also a- dopted to conduct single-factor and multiple-factor analyses. Risk factors and symptoms of CM were screened and analyzed. Results A total of 1 498 subjects attended follow-up surveys, with the response rate of 82.17%. Of them, 52 had brittle fracture. In Cox single-factor analysis, when taking the time for occurrence of postmenopausal OP as the outcome variable, average age (RR = 1. 083, P = 0. 003 ) , whether menopause (RR = 5. 462, P = 0. 004), average menopausal year (RR = 1. 060, P = 0. 010) , menopausal year ≤10 years (RR =4. 890,P =0. 008), menopausal year >10 year (RR =7. 720,P = 0. 001) , delivery times ≤3 times (RR =5. 870, P =0. 003), dizziness (RR =3. 037, P =0. 001) , spasm of lower limbs (RR =2. 315, P =0. 003) , reduced bone mass in bone mass density (BMD) diagnosis (RR = 2. 376, P =0. 008) , β >0 and RR >1 in BMD diagnosis (RR =2. 801 ,P =0. 013) indicated they were risk factors for postmenopausal OP fracture. When taking BMD diagnosis, age, menopausal year, delivery times, dizziness, and spasm of lower limbs in multiple-factor analysis, menopausal year <10 years (RR =3. 257,P =0. 032) and dizziness (RR =2. 655,P =0. 005) were associated variables. Conclusion Dizziness and menopausal years were most important factors of OP fracture, and dizziness could be taken as symptoms of CM in early predicting occurrence of OP fracture.
- Published
- 2017
29. [Analysis of Diemailing Kudiezi injection use in real world in 7 189 patients with cerebral infarction].
- Author
-
Liao X, Zhang Y, Xie YM, Liu Y, Yi DH, Zhang YL, and Chen F
- Subjects
- China, Drug Utilization Review, Humans, Injections, Medicine, Chinese Traditional, Cerebral Infarction drug therapy, Drugs, Chinese Herbal therapeutic use
- Abstract
This is a study based on hospital intensive monitoring to explore medication use of Diemailing Kudiezi injection(one Chinese herbal medicine injection) in real word in the patients with cerebral infarction. The active monitoring model was adopted and hospital intensive monitoring on safety of 7 189 cases of patients with cerebral infarction was conducted to obtain the drug use information of Diemailing injection. The results were analyzed by using statistical description and association rule method. The statistical description and association rule analysis were conducted based on patients' basic demographic characteristics, use of Diemailing injection and combined use of drugs. Sixty-two percent(4 437/7 189) of the patients were from traditional Chinese medicine hospitals as compared with 39%(2 752/7 189) from western medicine hospitals; 84%(6 003/7 189) of the patients were from tertiary hospitals as compared with 16%(1 186/7 189) from second-class hospitals. The hospitals were mostly located in north China. Drug related indicators such as a single dripping speed, stash time after allocating transfusion, duration of injection, and injecting room temperature were not noted in instruction manual. It was also found that there were off label use in the practice, for instance, non-intravenous infusion, >14 d treatment course, use of non-designated solvent, and a single dose>40 mL or<10 mL. Analysis of association rules showed that only Edaravone among the most frequent combined drugs was listed in the current guideline in China, and the other three most frequent combined drugs deproteinized calf blood extractive injection, Cinepazide Maleate injection and Alprostadil injection were used with little evidence. Diemailing+Aspirin+Alprostadil was the most common combined use in our study, but the recommended clopidogrel+Aspirin was not found in this study. The drug use situation of Diemailing injection in the real world was obtained by data analysis on large size samples, providing basic reference information for clinicians and researchers. However, efficacy was not concerned in this study, so efficacy-related information could not be explained., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2016
- Full Text
- View/download PDF
30. [Clinical analysis of Cervus and Cucumis Polypeptide injection based on real world hospital information system].
- Author
-
Sun SL, Xie YM, Li YY, Zhang Y, Yi DH, and Zhuang Y
- Subjects
- Animals, China, Cucumis chemistry, Deer, Drugs, Chinese Herbal therapeutic use, Fractures, Bone drug therapy, Humans, Injections, Peptides therapeutic use, Drug Utilization, Hospital Information Systems, Materia Medica therapeutic use, Medicine, Chinese Traditional
- Abstract
To analyze the clinical application of Cervus and Cucumis Polypeptide injection in the real world, in order to define the characteristics of clinical drug use and correlation, and provide reference for risk management and further study for Cervus and Cucumis Polypeptide injection. Descriptive analysis and association rules analysis were performed on 37 721 cases using Cervus and Cucumis Polypeptide injection in 26 hospitals nationwide. Cervus and Cucumis Polypeptide injection were mostly adopted by patients aged between 45 and 64(39.84%); mainly used to treat fracture patients in clinic(17 362 cases, 33.97%); 12 mL(41.81%) was the commonest dosage. And the course of treatment mainly lasted for 1-3 days(28 467 cases, 76.26%), which was basically consistent with the description of package insert. In clinic, traditional Chinese medicines, such as blood activating and stasis removing agents and Bushen Zhuanggu agents, were frequently combined with it(rule support degree of 19.38%). Such western medicine as antibiotics and nutritional drugs were frequently combined with it(rule support 39.9%). The main single combined medicine were vitamin C(13 202 cases, 35%), and Jintiange capsule(7 285 cases, 19.31%). The commonly used combined drug pairs were Hulisan capsule and Jintiange capsule (rule support 4.458%), phenobarbital and ceftazidime azole oxazoline(rule support degree of 10.62%). Cervus and Cucumis Polypeptide injection is mainly adopted by elderly patients in clinic, used to treat fracture patients, and often combined with blood activating and stasis removing agents, Bushen Zhuanggu agents, antibiotics, and nutritional medicine to enhance fracture healing. In clinical application, attention shall be paid to drug safety of elderly patients and types of combined medicines and their interaction, so as to prevent adverse reactions., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2016
- Full Text
- View/download PDF
31. New preventative approach for negative dysphotopsia.
- Author
-
Henderson BA, Yi DH, Constantine JB, and Geneva II
- Subjects
- Acrylic Resins, Humans, Lenses, Intraocular, Postoperative Complications, Prospective Studies, Prosthesis Design, Cataract therapy, Lens Capsule, Crystalline, Lens Implantation, Intraocular, Silicone Elastomers
- Abstract
Purpose: To evaluate whether positioning the intraocular lens (IOL) to decrease the entry of inferotemporal light would decrease the incidence of negative dysphotopsia., Setting: Private practices, Boston and Chelmsford, Massachusetts, USA., Design: Prospective randomized case study., Methods: Patients had cataract surgery with implantation of either a silicone IOL inferotemporally or vertically (randomly assigned) or a 1-piece acrylic IOL with the optic-haptic junction inferotemporally or vertically (randomly assigned). Other patients received acrylic IOLs bilaterally and inferotemporally without randomization. Patients were asked about negative dysphotopsia symptoms postoperatively. Data were analyzed using the z test and a chi-square test for comparing the incidence of negative dysphotopsia between the 3 groups., Results: The study comprised 305 patients (418 eyes). A silicone IOL was implanted inferotemporally in 39 eyes and vertically in 60 eyes. An acrylic IOL was implanted with the optic-haptic junction inferotemporally in 163 eyes and with the junction vertical in 114 eyes. Forty-two eyes had bilateral inferotemporal implantation of an acrylic IOL. For the acrylic IOL on the first postoperative day, the incidence of negative dysphotopsia was smaller for the inferotemporal IOL orientation (6%) than in the control group (14%) (P = .026). The rate of persistent negative dysphotopsia decreased in both groups over time, and the difference 1 month after surgery was no longer statistically significant. The negative dysphotopsia rate for the silicone IOL was 0%., Conclusions: Positioning the optic-haptic junction of an acrylic IOL inferotemporally resulted in a 2.3-fold decrease in the incidence of negative dysphotopsia after cataract surgery. When implanted in the vertical position, Acrylic IOLs seemed to lead to a higher incidence of negative dysphotopsia than silicone IOLs., Financial Disclosure: Dr. Henderson is a consultant to Abbott Medical Optics, Inc., Alcon Laboratories, Inc., and Bausch & Lomb, Inc. None of the other authors has a financial or proprietary interest in any material or method mentioned., (Copyright © 2016 ASCRS and ESCRS. Published by Elsevier Inc. All rights reserved.)
- Published
- 2016
- Full Text
- View/download PDF
32. [32 546 intensive hospital monitoring cases of Shuxuetong injection].
- Author
-
Jiang JJ, Xie YM, Zhang Y, Yang ZX, and Yi DH
- Subjects
- Headache, Humans, Hypersensitivity, Injections, Adverse Drug Reaction Reporting Systems, Drugs, Chinese Herbal adverse effects
- Abstract
This study adopted multi-center and large sample design to understand the incidence, characteristics and other information about adverse reaction of Shuxuetong injection. In 54 medical institutions, use of Shuxuetong injection of entire treatment period was monitored, including patients' general information, diagnostic information, medication, adverse reaction/event information, etc. Sixty four cases of adverse reactions in 32 546 patients was monitored, adverse rate was 0.197%, mainly characterized by skin itching, rash, flu-like, dyspnea, palpitations, headache, chest tightness and other allergic reactions. Adverse reaction occurred mainly in elderly patients and medication was consistent with the instruction. Based on these results, safety of Shuxuetong injection in clinical application is excellent., Competing Interests: The authors of this article and the planning committee members and staff have no relevant financial relationships with commercial interests to disclose., (Copyright© by the Chinese Pharmaceutical Association.)
- Published
- 2016
- Full Text
- View/download PDF
33. [Thought on the techniques of totally thoracoscopic cardiac surgery].
- Author
-
Yi DH, Xu XZ, and Yi W
- Subjects
- Heart, Humans, Treatment Outcome, Cardiac Surgical Procedures methods, Minimally Invasive Surgical Procedures methods, Thoracoscopy
- Abstract
Minimally invasive surgery has become the guiding principle of the entire surgical treatment. In last 16 years, totally thoracoscopic cardiac surgery (TTCS) has developed rapidly, and achieved good results. However, there are obvious differences between the basic surgical techniques of TTCS and of conventional cardiac surgery. At present, there is still lack of standard and in sufficient evidence in the surgical techniques of TTCS. It requires professional and standardized training and evidence-based research on TTCS, including indication selection and procedure standardization, to improve the therapy level of TTCS further.
- Published
- 2016
- Full Text
- View/download PDF
34. Vast assembly of vocal marine mammals from diverse species on fish spawning ground.
- Author
-
Wang D, Garcia H, Huang W, Tran DD, Jain AD, Yi DH, Gong Z, Jech JM, Godø OR, Makris NC, and Ratilal P
- Subjects
- Acoustics, Animals, Atlantic Ocean, Diet veterinary, Ecosystem, Male, Time Factors, Whales physiology, Aquatic Organisms physiology, Feeding Behavior, Fishes physiology, Mammals physiology, Predatory Behavior, Vocalization, Animal
- Abstract
Observing marine mammal (MM) populations continuously in time and space over the immense ocean areas they inhabit is challenging but essential for gathering an unambiguous record of their distribution, as well as understanding their behaviour and interaction with prey species. Here we use passive ocean acoustic waveguide remote sensing (POAWRS) in an important North Atlantic feeding ground to instantaneously detect, localize and classify MM vocalizations from diverse species over an approximately 100,000 km(2) region. More than eight species of vocal MMs are found to spatially converge on fish spawning areas containing massive densely populated herring shoals at night-time and diffuse herring distributions during daytime. We find the vocal MMs divide the enormous fish prey field into species-specific foraging areas with varying degrees of spatial overlap, maintained for at least two weeks of the herring spawning period. The recorded vocalization rates are diel (24 h)-dependent for all MM species, with some significantly more vocal at night and others more vocal during the day. The four key baleen whale species of the region: fin, humpback, blue and minke have vocalization rate trends that are highly correlated to trends in fish shoaling density and to each other over the diel cycle. These results reveal the temporospatial dynamics of combined multi-species MM foraging activities in the vicinity of an extensive fish prey field that forms a massive ecological hotspot, and would be unattainable with conventional methodologies. Understanding MM behaviour and distributions is essential for management of marine ecosystems and for accessing anthropogenic impacts on these protected marine species.
- Published
- 2016
- Full Text
- View/download PDF
35. A Monocular Vision Sensor-Based Obstacle Detection Algorithm for Autonomous Robots.
- Author
-
Lee TJ, Yi DH, and Cho DI
- Abstract
This paper presents a monocular vision sensor-based obstacle detection algorithm for autonomous robots. Each individual image pixel at the bottom region of interest is labeled as belonging either to an obstacle or the floor. While conventional methods depend on point tracking for geometric cues for obstacle detection, the proposed algorithm uses the inverse perspective mapping (IPM) method. This method is much more advantageous when the camera is not high off the floor, which makes point tracking near the floor difficult. Markov random field-based obstacle segmentation is then performed using the IPM results and a floor appearance model. Next, the shortest distance between the robot and the obstacle is calculated. The algorithm is tested by applying it to 70 datasets, 20 of which include nonobstacle images where considerable changes in floor appearance occur. The obstacle segmentation accuracies and the distance estimation error are quantitatively analyzed. For obstacle datasets, the segmentation precision and the average distance estimation error of the proposed method are 81.4% and 1.6 cm, respectively, whereas those for a conventional method are 57.5% and 9.9 cm, respectively. For nonobstacle datasets, the proposed method gives 0.0% false positive rates, while the conventional method gives 17.6%.
- Published
- 2016
- Full Text
- View/download PDF
36. Sensitive change of iso-branched fatty acid (iso-15:0) in Bacillus pumilus PAMC 23174 in response to environmental changes.
- Author
-
Yi DH, Sathiyanarayanan G, Seo HM, Kim JH, Bhatia SK, Kim YG, Park SH, Jung JY, Lee YK, and Yang YH
- Subjects
- Acclimatization, Bacillus growth & development, Fatty Acids biosynthesis, Models, Biological
- Abstract
In this study, the environmental adaptive metabolic processes were investigated using a psychrotrophic polar bacterium Bacillus pumilus PAMC 23174 in response to various temperatures and nutrients, especially in regard to the synthesis of fatty acids. Fatty acid methyl ester analysis was performed using gas chromatography-mass spectrometry and we found that a sensitive changes in iso-branched fatty acid (iso-15:0) synthesis occurred when adjusting the nutritional ratio of branched chain fatty acids (anteiso/iso) with different temperatures, resulting in a change in the balance of anteiso- and iso-form fatty acids. We also observed that this Arctic bacterium preferred amino acid leucine for the synthesis of fatty acids. The increased and decreased synthesis of iso-form fatty acids in response to different temperatures and leucine preference, changes the fatty acid ratio in bacteria, which further affects the membrane fluidity and it is also directly correlated with survival of bacteria in an extreme environment. Hence, this study suggests that B. pumilus PAMC 23174 is a potential model organism for the analysis of the unique ecological adaptations of polar bacteria in changing and the extreme environments.
- Published
- 2016
- Full Text
- View/download PDF
37. [Effect of Naoshuantong capsule on change of SSQOL index in patients with ischemic stroke in six mouths follow-up].
- Author
-
Ye XQ, Xie YM, Zou YH, Zhao XQ, Han JH, Wang XZ, Ma YZ, Bi Q, Xie QF, Zhao JJ, Cao XL, Chen HX, Wang Shi-zhong, Yan YM, Han ZC, Yi DH, and Wang YY
- Subjects
- Adult, Aged, Capsules administration & dosage, Capsules adverse effects, Drugs, Chinese Herbal adverse effects, Female, Follow-Up Studies, Humans, Male, Middle Aged, Treatment Outcome, Drugs, Chinese Herbal administration & dosage, Quality of Life, Stroke drug therapy
- Abstract
To evaluate the effect of Naoshuantong capsule on the life quality of patients with ischemic stroke in six months of follow-up studies, and observe the adverse events. The results would provide reference for the secondary prevention on the recovery stage of ischemic stroke. 696 patients from 12 Class III Grade I hospitals nationwide were divided into 2 groups by central randomization system. The study group, 344 cases, were treated with Naoshuantong capsule plus Aspirin, and the control group, 352 cases, were treated with Aspirin. The patients were treated for 6 months. At the end of treatment, SS-QOL used for evaluating the quality of life was observed. The safety index was defined by adverse observation event. The incidence of adverse events and laboratory tests results were observed before and after treatment at the same time. The results indicated that compared to the control group, the treatment group had significant statistical difference in the impact of effort, self-care ability and the the work or labor ability of patients (P < 0.05). No serious adverse events were observed. Naoshuantong capsule showed some superiority to Asprin on improving the quality of life on patients with ischemic stroke, and it could be used in secondary prevention on the recovery stage of ischemic stroke. Naoshuantong capsule is safe and effective in the treatment of convalescence ischemic stroke.
- Published
- 2015
38. Overexpression of succinyl-CoA synthase for poly (3-hydroxybutyrate-co-3-hydroxyvalerate) production in engineered Escherichia coli BL21(DE3).
- Author
-
Bhatia SK, Yi DH, Kim HJ, Jeon JM, Kim YH, Sathiyanarayanan G, Seo HM, Lee JH, Kim JH, Park K, Brigham CJ, and Yang YH
- Subjects
- 3-Hydroxybutyric Acid, Acyl Coenzyme A genetics, Acyltransferases genetics, Escherichia coli enzymology, Metabolic Engineering, Propionates metabolism, Acyl Coenzyme A metabolism, Escherichia coli genetics, Escherichia coli metabolism, Polyesters metabolism
- Abstract
Aim: This study aims to increase the 3-hydroxyvalerate (3HV) fraction in poly(3-hydroxybutyrate-co-3-hydroxyvalerate) [P(HB-co-HV)] using succinyl-CoA synthase., Methods and Results: Escherichia coli YH090, a polyhydroxyalkonate (PHA)-producing strain, was further engineered for overexpression of succinyl-CoA synthase genes (sucCD), and examined for P(HB-co-HV) copolymer production in the presence of various precursor molecules using mixture analysis. Glycerol, succinate and propionate were screened as important factors for controlling intracellular PHA accumulation and monomer composition. Glycerol concentrations exerted the greatest influence on the overall biomass concentration and the intracellular PHA content, while propionate concentrations in the presence of succinate influenced the 3HV content of the copolymer. Mixture analysis also demonstrated that the engineered strain has the capacity to accumulate up to 80% of its cell dry weight (CDW) as PHA with a variable fraction of 3HV monomer (maximum of 72 wt %) depending on the controlled conditions., Conclusions: Propionate is the principal precursor for 3HV monomer in P(HB-co-HV) biopolymer and its utilization requires conversion to propionyl-CoA. Engineered E. coli YHY99, overexpressing sucCD genes, leads to an increase of the succinyl-CoA pool, which enhances the conversion rate of propionate by providing a CoA supply to other acyltransferase enzymes that have a role in propionate utilization., Significance and Impact of the Study: Engineered E. coli YHY99 was able to utilize propionate with a 4·5-fold increase in rate, as compared to the control strain, and resulted in the synthesis of a copolymer with high 3HV monomer content., (© 2015 The Society for Applied Microbiology.)
- Published
- 2015
- Full Text
- View/download PDF
39. Starch based polyhydroxybutyrate production in engineered Escherichia coli.
- Author
-
Bhatia SK, Shim YH, Jeon JM, Brigham CJ, Kim YH, Kim HJ, Seo HM, Lee JH, Kim JH, Yi DH, Lee YK, and Yang YH
- Subjects
- Amylases biosynthesis, Cupriavidus necator enzymology, Cupriavidus necator genetics, Escherichia coli genetics, Recombinant Proteins biosynthesis, Escherichia coli metabolism, Hydroxybutyrates metabolism, Metabolic Engineering, Polyesters metabolism, Starch metabolism
- Abstract
Every year, the amount of chemosynthetic plastic accumulating in the environment is increasing, and significant time is required for decomposition. Bio-based, biodegradable plastic is a promising alternative, but its production is not yet a cost effective process. Decreasing the production cost of polyhydroxyalkanoate by utilizing renewable carbon sources for biosynthesis is an important aspect of commercializing this biodegradable polymer. An Escherichia coli strain that expresses a functional amylase and accumulate polyhydroxybutyrate (PHB), was constructed using different plasmids containing the amylase gene of Panibacillus sp. and PHB synthesis genes from Ralstonia eutropha. This engineered strain can utilize starch as the sole carbon source. The maximum PHB production (1.24 g/L) was obtained with 2% (w/v) starch in M9 media containing 0.15% (w/v) yeast extract and 10 mM glycine betaine. The engineered E. coli SKB99 strain can accumulate intracellular PHB up to 57.4% of cell dry mass.
- Published
- 2015
- Full Text
- View/download PDF
40. [Practical Diagnostic Criterion of Blood Stasis Syndrome: Introduction, Reliability, and Validity].
- Author
-
Luo J, Wang AL, Zhao W, Che FY, Feng Q, Yi DH, Xu H, and Chen KJ
- Subjects
- Bayes Theorem, Consensus, Humans, Reproducibility of Results, Sensitivity and Specificity, Hematologic Diseases diagnosis, Medicine, Chinese Traditional
- Abstract
Objective: To introduce practical diagnostic criterion of blood stasis syndrome (BSS), and to evaluate its reliability and validity., Methods: By referring to three diagnostic criteria of BSS [practical diagnostic criterion of BSS (criterion A), diagnostic criterion of BSS in 1986 (criterion B), Consensus of Integrative Medicine on BSS Diagnosis in 2011 (criterion C)], 712 patients from different departments of Xiyuan Hospital were recruited. The reliability of criterion A and its consistency with the other two criteria were assessed using Kappa coefficient. A Bayesian approach was also employed to assess the sensitivity and specificity of criterion A., Results: According to the consistency check, criterion A presented good consistency when used by different researchers (the diagnostic accordance rate was 91. 96%, Kappa =0. 82, P <0.001). Meanwhile, there was an acceptable diagnostic consistency among the three diagnostic criteria. Bayesian estimation suggested that criterion A had higher sensitivity but similar specificity, as compared with criterion B or criterion C. Compared with criterion B [the median of sensitivity and specificity were 0. 762 (95% Cl: 0. 731 -0. 790) and 0. 902 (95% Cl: 0. 858 -0. 936) respectively, the median of sensitivity and specificity of criterion A were 0. 911 (95% CI: 0. 888 - 0. 930) and 0. 875 (95% CI: 0. 826 - 0. 915) respectively. Estimating the difference between criterion A and B, the median of sensitivity and specificity were 0. 149 (95% CI: 0. 112 -0.184) and -0. 026 (95% CI:-0. 085 -0. 033) respectively. Compared with criterion C [the median of sensitivity and specificity were 0. 831 (95% Cl: 0. 804 -0. 857) and 0. 892 (95% CI: 0. 848 - 0. 926) respectively], the median of sensitivity and specificity of criterion A were 0. 912 (95% CI: 0. 889 -0. 932) and 0. 880 (95%CI: 0. 833 - 0.919) respectively. Estimating the difference between criterion A and C, the median of sensitivity and specificity were 0. 081 (95% CI: 0.047 - 0.114) and -0.011 (95%CI: -0.070 -0.046) respectively., Conclusion: Compared with criterion B and C, criterion A not only had better reliability, but also could significantly improve the sensitivity without obviously lowering the specificity.
- Published
- 2015
41. TLR3 gene polymorphisms in cancer: a systematic review and meta-analysis.
- Author
-
Wang BG, Yi DH, and Liu YF
- Subjects
- Alleles, Asian People, Case-Control Studies, Genetic Predisposition to Disease, Genotype, Humans, Introns, Odds Ratio, Polymorphism, Genetic, Risk, Neoplasms, Polymorphism, Single Nucleotide, Toll-Like Receptor 3
- Abstract
Introduction: Recent studies examining the association of Toll-like receptor 3 (TLR3) gene polymorphisms with the risk of developing various types of cancer have reported conflicting results. Clarifying this association could advance our knowledge of the influence of TLR3 single nucleotide polymorphisms (SNPs) on cancer risk., Methods: We systematically reviewed studies that focused on a collection of 12 SNPs located in the TLR3 gene and the details by which these SNPs influenced cancer risk. Additionally, 14 case-control studies comprising a total of 7997 cases of cancer and 8699 controls were included in a meta-analysis of 4 highly studied SNPs (rs3775290, rs3775291, rs3775292, and rs5743312)., Results: The variant TLR3 genotype rs5743312 (C9948T, intron 3, C>T) was significantly associated with an increased cancer risk as compared with the wild-type allele (odds ratio [OR]=1.11, 95% confidence interval [CI]=1.00-1.24, P=0.047). No such association was observed with other TLR3 SNPs. In the stratified analysis, the rs3775290 (C13766T, C>T) variant genotype was found to be significantly associated with an increased cancer risk in Asian populations. Additionally, the rs3775291 (G13909A, G>A) variant genotype was significantly associated with an increased cancer risk in Asians, subgroup with hospital-based controls, and subgroup with a small sample size., Conclusion: After data integration, our findings suggest that the TLR3 rs5743312 polymorphism may contribute to an increased cancer risk.
- Published
- 2015
- Full Text
- View/download PDF
42. Afocal optical flow sensor for reducing vertical height sensitivity in indoor robot localization and navigation.
- Author
-
Yi DH, Lee TJ, and Cho DI
- Abstract
This paper introduces a novel afocal optical flow sensor (OFS) system for odometry estimation in indoor robotic navigation. The OFS used in computer optical mouse has been adopted for mobile robots because it is not affected by wheel slippage. Vertical height variance is thought to be a dominant factor in systematic error when estimating moving distances in mobile robots driving on uneven surfaces. We propose an approach to mitigate this error by using an afocal (infinite effective focal length) system. We conducted experiments in a linear guide on carpet and three other materials with varying sensor heights from 30 to 50 mm and a moving distance of 80 cm. The same experiments were repeated 10 times. For the proposed afocal OFS module, a 1 mm change in sensor height induces a 0.1% systematic error; for comparison, the error for a conventional fixed-focal-length OFS module is 14.7%. Finally, the proposed afocal OFS module was installed on a mobile robot and tested 10 times on a carpet for distances of 1 m. The average distance estimation error and standard deviation are 0.02% and 17.6%, respectively, whereas those for a conventional OFS module are 4.09% and 25.7%, respectively.
- Published
- 2015
- Full Text
- View/download PDF
43. Lipase-Catalyzed Production of 6-O-cinnamoyl-sorbitol from D-sorbitol and Cinnamic Acid Esters.
- Author
-
Kim JH, Bhatia SK, Yoo D, Seo HM, Yi DH, Kim HJ, Lee JH, Choi KY, Kim KJ, Lee YK, and Yang YH
- Subjects
- Enzymes, Immobilized chemistry, Candida enzymology, Cinnamates chemistry, Fungal Proteins chemistry, Lipase chemistry, Sorbitol chemistry
- Abstract
To overcome the poor properties of solubility and stability of cinnamic acid, cinnamate derivatives with sugar alcohols were produced using the immobilized Candida antarctica lipase with vinyl cinnamate and D-sorbitol as substrate at 45 °C. Immobilized C. antarctica lipase was found to synthesize 6-O-cinnamoyl-sorbitol and confirmed by HPLC and (1)H-NMR and had a preference for vinyl cinnamate over other esters such as allyl-, ethyl-, and isobutyl cinnamate as co-substrate with D-sorbitol. Contrary to D-sorbitol, vinyl cinnamate, and cinnamic acid, the final product 6-O-cinnamoyl-sorbitol was found to have radical scavenging activity. This would be the first report on the biosynthesis of 6-O-cinnamoyl-sorbitol with immobilized enzyme from C. antarctica.
- Published
- 2015
- Full Text
- View/download PDF
44. High rate of core promoter and precore mutations in patients with chronic hepatitis B.
- Author
-
Baqai SF, Proudfoot J, Yi DH, Mangahas M, and Gish RG
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Alanine Transaminase blood, Carcinoma, Hepatocellular blood, Carcinoma, Hepatocellular enzymology, Cross-Sectional Studies, DNA, Viral blood, Female, Hepatitis B e Antigens blood, Hepatitis B, Chronic virology, Humans, Liver Cirrhosis blood, Liver Cirrhosis virology, Liver Neoplasms blood, Liver Neoplasms enzymology, Male, Middle Aged, Mutation, Retrospective Studies, Severity of Illness Index, United States, Young Adult, Carcinoma, Hepatocellular virology, Hepatitis B virus genetics, Hepatitis B, Chronic blood, Liver Neoplasms virology, Promoter Regions, Genetic
- Abstract
Background: The prevalence of precore (PC) and core promoter (CP) mutations in patients with chronic hepatitis B virus (HBV) infection (CHB) and their impact on liver disease is incompletely defined in the United States., Methods: A retrospective chart review using a cross-sectional approach of 1,186 CHB patients was conducted., Results: Of 926 patients tested for HBV e antigen (HBeAg), 37% were HBeAg+. Of 194 patients tested for mutations, 80% had PC or CP mutations or both; 89% of HBeAg-negative and 56% of HBeAg+ patients had PC or CP mutations or both (p < 0.001). The mean log10 ALT was significantly lower in patients with both mutations compared to patients without mutations. The mean log10 HBV DNA was significantly lower in patients with only PC mutations (4.82) compared to patients without mutations (5.71, p = 0.019). With the study population divided into four subgroups based on ALT level at time of diagnosis, cirrhosis incidence was significantly higher in patients with ALT 1-2 × ULN and ALT > 2 × ULN compared to patients with ALT ≤ 0.5 × ULN., Conclusions: Our finding that PC and CP mutations may be associated with milder liver disease in some patients could serve as the basis for longitudinal studies to help delineate treatment need and duration in patients with these mutations. If confirmed, the finding of an association between ALT 1-2 × ULN and increased incidence of cirrhosis could call into question guidelines which only recommend treatment with ALT > 2 × ULN.
- Published
- 2015
- Full Text
- View/download PDF
45. Increased vulnerability to physical stress by inactivation of NdgR in Streptomyces coelicolor.
- Author
-
Lee BR, Yi DH, Song E, Bhatia SK, Lee JH, Kim YG, Park SH, Lee YK, Kim BG, and Yang YH
- Subjects
- Acetylglucosamine metabolism, Bacterial Proteins genetics, Cell Membrane genetics, Cell Membrane metabolism, Culture Media chemistry, Gene Expression Regulation, Fungal, Nitrogen metabolism, Sequence Deletion, Spores, Fungal enzymology, Streptomyces coelicolor growth & development, Cell Survival genetics, Streptomyces coelicolor genetics, Stress, Mechanical
- Abstract
The antibiotic production and spore formation process in Streptomyces coelicolor need complex decision making processes by several regulatory units. These regulatory units are involved in both primary and secondary metabolism. As a result, most regulators have several functions, and those are worthwhile themes to study about different functions of a known regulator. In this study, a deletion mutant of ndgR, which encodes the nitrogen-dependent growth regulator, was examined by the cell viability test, TEM, and growth in N-acetylglucosamine/asparagine (GlcNAc/Asn) liquid medium. The results of the study show that NdgR is also involved in the structure of the cell membrane affecting survival under physical shocks. Deletion of ndgR leads to abnormal cell membrane resulting in the vulnerable cells to physical stress caused by shaking with beads in liquid culture condition. This empirical observation is the first meaningful explanation to why ndgR mutant could not grow well in a liquid minimal medium due to the defect of N-acetylglucosamine (GlcNAc) utilization and phospholipid synthesis.
- Published
- 2015
- Full Text
- View/download PDF
46. Lacidipine attenuates TNF-α-induced cardiomyocyte apoptosis.
- Author
-
Wang QL, Zhao L, Feng N, Zhou P, Wu Q, Fan R, Li J, Zhang SM, Wang YM, Xu XZ, Yu SQ, Yi DH, and Pei JM
- Subjects
- Animals, Caspase 12 genetics, Caspase 12 metabolism, Caspase 3 genetics, Caspase 3 metabolism, Cells, Cultured, In Situ Nick-End Labeling, Male, Myocytes, Cardiac physiology, Random Allocation, Rats, Sprague-Dawley, Apoptosis drug effects, Calcium Channel Blockers pharmacology, Dihydropyridines pharmacology, Myocytes, Cardiac drug effects, Tumor Necrosis Factor-alpha pharmacology
- Abstract
This study was designed to investigate whether lacidipine elicited a protective role on cardiomyocyte against apoptosis induced by TNF-α. Neonatal rat cardiomyocytes were randomly assigned into different groups. TUNEL staining was utilized to detect apoptosis, and caspase-3 and caspse-12 were determined. To explore the underlying mechanism, Z-ATAD-FMK (a selective caspase-12 inhibitor) was used to identify the key molecule involved. TNF-α increased caspase-3 expression, which was mediated by increased caspase-12 expression. In the meantime, apoptosis was significantly induced by TNF-α. Lacidipine lowered caspase-12 and caspase-3 expression, and cardiomyocyte apoptosis induced by TNF-α. The results suggest that lacidipine attenuates TNF-α -induced apoptosis via inhibition of caspase-12 and caspase-3 successively., (Copyright © 2014 Elsevier Ltd. All rights reserved.)
- Published
- 2015
- Full Text
- View/download PDF
47. Pri-miR-34b/c rs4938723 TC heterozygote is associated with increased cancer risks: evidence from published data.
- Author
-
Yi DH, Wang BG, Zhong XP, Liu H, and Liu YF
- Subjects
- Humans, Odds Ratio, Publication Bias, Risk, Alleles, Genetic Predisposition to Disease, Heterozygote, MicroRNAs genetics
- Abstract
The promoter region of the microRNA pri-miR-34b/c has a potentially functional polymorphism, rs4938723, located in a typical CpG island. Studies of the association between pri-miR-34b/c rs4938723 polymorphism and risks of various cancers have had inconsistent results. We therefore conducted a meta-analysis of nine studies that included 6,036 cancer patients and 7,490 controls to address this association. Overall, this meta-analysis showed the pri-miR-34b/c rs4938723 TC heterozygote to be significantly associated with increased risk of overall cancers compared with the wild-type TT genotype (P = 0.010, odds ratio (OR) = 1.10, 95 % confidence interval (CI) 1.02-1.18). In stratified analysis, the TC heterozygote was significantly associated with increased cancers risks in digestive tract cancers, in hepatocellular cancer, in Asian population and in the large-sample subgroup. The CC genotypes of rs4938723 were also associated with increased hepatocellular cancer risk but associated with decreased colorectal cancer risk in the stratification analysis by a single cancer type. Thus our meta-analysis suggests that the pri-miR-34b/c rs4938723 TC heterozygote contributes to increased overall cancer risks, as well as shown in digestive tract cancers, in hepatocellular cancer, in Asian population and in the large-sample subgroup. This rs4938723 SNP showed an opposite tendency orientation between the hepatocellular cancer and colorectal cancer risks. Large-sample studies are needed to verify our findings.
- Published
- 2014
- Full Text
- View/download PDF
48. The synergistic effect of the combined thin multi-walled carbon nanotubes and reduced graphene oxides on photothermally actuated shape memory polyurethane composites.
- Author
-
Yi DH, Yoo HJ, Mahapatra SS, Kim YA, and Cho JW
- Abstract
We evaluated the synergistic effect of the hybrid-type nanocarbon, consisting of 1D thin-walled carbon nanotubes (TWNTs) and 2D reduced graphene oxide (RGO), on the shape memory performance of hyperbranched polyurethane composites. The shape recovery of the resulting composites was activated via a photothermal process using a near-infrared laser. The best laser-induced shape recovery performance was achieved for the composites with a 7/3 of TWNT/RGO ratio and a 1wt.% of nanocarbon content. Such result can be explained by good dispersion of TWNTs and RGO in the hyperbranched polymer as well as three-dimensionally enhanced interconnection between carbon nanotubes and graphenes. The optically active TWNTs with a high optical absorption section exhibited high ability of transferring laser-induced thermal energy to polymer matrix whereas RGO provided a high mechanical property to polymer matrix. The tensile modulus and electrical conductivity of the composites also showed a similar dependence on the TWNT/RGO composition ratio as the photothermal shape recovery. Our study demonstrated an effective conversion from light, thermal to mechanical work by irradiating shape memory polymer composite containing hybrid-type fillers using a near-infrared laser., (Copyright © 2014 Elsevier Inc. All rights reserved.)
- Published
- 2014
- Full Text
- View/download PDF
49. Ecosystem scale acoustic sensing reveals humpback whale behavior synchronous with herring spawning processes and re-evaluation finds no effect of sonar on humpback song occurrence in the Gulf of Maine in fall 2006.
- Author
-
Gong Z, Jain AD, Tran D, Yi DH, Wu F, Zorn A, Ratilal P, and Makris NC
- Subjects
- Animals, Maine, Oceanography, Seasons, Acoustics, Humpback Whale, Vocalization, Animal
- Abstract
We show that humpback-whale vocalization behavior is synchronous with peak annual Atlantic herring spawning processes in the Gulf of Maine. With a passive, wide-aperture, densely-sampled, coherent hydrophone array towed north of Georges Bank in a Fall 2006 Ocean Acoustic Waveguide Remote Sensing (OAWRS) experiment, vocalizing whales could be instantaneously detected and localized over most of the Gulf of Maine ecosystem in a roughly 400-km diameter area by introducing array gain, of 18 dB, orders of magnitude higher than previously available in acoustic whale sensing. With humpback-whale vocalizations consistently recorded at roughly 2000/day, we show that vocalizing humpbacks (i) were overwhelmingly distributed along the northern flank of Georges Bank, coinciding with the peak spawning time and location of Atlantic herring, and (ii) their overall vocalization behavior was strongly diurnal, synchronous with the formation of large nocturnal herring shoals, with a call rate roughly ten-times higher at night than during the day. Humpback-whale vocalizations were comprised of (1) highly diurnal non-song calls, suited to hunting and feeding behavior, and (2) songs, which had constant occurrence rate over a diurnal cycle, invariant to diurnal herring shoaling. Before and during OAWRS survey transmissions: (a) no vocalizing whales were found at Stellwagen Bank, which had negligible herring populations, and (b) a constant humpback-whale song occurrence rate indicates the transmissions had no effect on humpback song. These measurements contradict the conclusions of Risch et al. Our analysis indicates that (a) the song occurrence variation reported in Risch et al. is consistent with natural causes other than sonar, (b) the reducing change in song reported in Risch et al. occurred days before the sonar survey began, and (c) the Risch et al. method lacks the statistical significance to draw the conclusions of Risch et al. because it has a 98-100% false-positive rate and lacks any true-positive confirmation.
- Published
- 2014
- Full Text
- View/download PDF
50. Ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis.
- Author
-
Yi DH, Liu H, Chen Y, Li H, Xu T, and Liu YF
- Subjects
- Animals, ROC Curve, Swine, Temperature, Time Factors, Death, Ischemia, Liver blood supply, Liver pathology, Microdialysis
- Abstract
This study aims to evaluate the ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis. A porcine model of cardiac death was established by the suffocation method. Metabolic indicators were monitored using the microdialysis technique during warm ischemia time (WIT) and cold ischemia time (CIT). Pathological changes in ischemic-injured livers were observed by haematoxylin-eosin staining. The predictive values of biochemical parameters regarding the liver donor were evaluated by receiver operating characteristic curve analysis. All statistical analyses were conducted using the SPSS 18.0 software (SPSS Inc, Chicago, Illinois, USA). The degree of warm ischemic injury of the livers increased with prolonged WIT. Serum glucose, glycerol, pyruvate, lactic acid levels and lactate-to-pyruvate (L/P) ratio increased gradually during WIT. Results from Pearson correlation analyses indicated that serum lactate level and L/P ratio were positively associated with the degree of warm ischemic injury of the livers. The degree of cold ischemic injury of the livers gradually increased after 12 h CIT. Serum glucose, lactic acid and L/P ratio achieved a peak after 6-8 h of CIT, but gradually decreased with prolonged CIT. The peak of glycerol occurred after 8 h of CIT, while no changes were found with prolonged CIT. Serum pyruvate level exhibited an increasing trend after 12 h CIT. Our results confirmed that serum glucose and lactate levels were negatively correlated with cold ischemic injury of the liver. However, serum glycerol and pyruvate levels showed positive correlations with cold ischemic injury of the liver. The liver donor was unavailable after 30 min WIT and 24 h CIT. The cut-off value of serum lactate level for warm ischemic injury of the livers was 2.374 with a sensitivity (Sen) of 90 % and specificity (Spe) of 95 %; while the L/P radio was 0.026 (Sen = 80 %, Spe = 83 %). In addition, the cut-off values of serum glucose, lactate, glycerol and pyruvate levels for cold ischemic injury of the livers were 0.339 (Sen = 100 %, Spe = 77 %), 1.172 (Sen = 100 %, Spe = 61 %), 56.359 (Sen = 100 %, Spe = 65 %) and 0.020 (Sen = 100 %, Spe = 67 %), respectively. Our findings provide empirical evidences that serum glucose, lactate levels and L/P ratio may be good indicators for the degree of warm ischemic injury of the livers after cardiac death; while serum glucose, lactate, glycerol and pyruvate levels may be important in predicting cold ischemic injury.
- Published
- 2014
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.