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102篇 您的检索式:作者名="Cheng Ching"
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1A GLP-1 analog lowers ER stress and enhances protein folding to ameliorate homocysteine-induced endothelial dysfunction显示文摘Hyperhomocysteinemia(HHcy)is an independent risk factor for cardiovascular diseases and increases mortality in type 2 diabetic patients.HHcy induces endoplasmic reticulum(ER)stress and oxidative stress to impair endothelial function.The glucagon-like peptide 1(GLP-1)analog exendin-4 attenuates endothelial ER stress,but the detailed vasoprotective mechanism remains elusive.The present study investigated the beneficial effects of exendin-4 against HHcy-induced endothelial dysfunction.Exendin-4 pretreatment reversed homocysteine-induced impairment of endothelium-dependent relaxations in C57BL/6 mouse aortae ex vivo.Four weeks subcutaneous injection of exendin-4 restored the impaired endothelial function in both aortae and mesenteric arteries isolated from mice with diet-induced HHcy.Exendin-4 treatment lowered superoxide anion accumulation in the mouse aortae both ex vivo and in vivo.Exendin-4 decreased the expression of ER stress markers(e.g.,ATF4,spliced XBP1,and phosphorylated eIF2α)in human umbilical vein endothelial cells(HUVECs),and this change was reversed by cotreatment with compound C(CC)(AMPK inhibitor).Exendin-4 induced phosphorylation of AMPK and endothelial nitric oxide synthase in HUVECs and arteries.Exendin-4 increased the expression of endoplasmic reticulum oxidoreductase(ERO1α),an important ER chaperone in endothelial cells,and this effect was mediated by AMPK activation.Experiments using siRNA-mediated knockdown or adenoviral overexpression revealed that ERO1αmediated the inhibitory effects of exendin-4 on ER stress and superoxide anion production,thus ameliorating HHcy-induced endothelial dysfunction.The present results demonstrate that exendin-4 reduces HHcy-induced ER stress and improves endothelial function through AMPK-dependent ERO1αupregulation in endothelial cells and arteries.AMPK activation promotes the protein folding machinery in endothelial cells to suppress ER stress.Chak Kwong Cheng Jiang-Yun Luo Chi Wai Lau William Chi-shing Cho Chi Fai Ng Ronald Ching Wan Ma Xiao Yu Tian Yu Huang 2021Acta Pharmacologica Sinica2021,42,10:6
2Randomised controlled trial comparing modified Sano's and narrow band imaging international colorectal endoscopic classifications for colorectal lesions显示文摘AIM To assess the utility of modified Sano′s(MS) vs thenarrow band imaging international colorectal endoscopic(NICE) classification in differentiating colorectal polyps.METHODS Patients undergoing colonoscopy between 2013 and 2015 were enrolled in this trial.Based on the MS or the NICE classifications,patients were randomised for real-time endoscopic diagnosis.This was followed by biopsies,endoscopic or surgical resection.The endoscopic diagnosis was then compared to the final(blinded) histopathology.The primary endpoint was the sensitivity(Sn),specificity(Sp),positive predictive value(PPV) and negative predictive value(NPV) of differentiating neoplastic and non-neoplastic polyps(MSⅡ/Ⅱo/Ⅲa/Ⅲb vs I or NICE 1 vs 2/3).The secondary endpoints were 'endoscopic resectability'(MSⅡ/Ⅱo/Ⅲa vs Ⅰ/Ⅲb or NICE 2 vs 1/3),NPV for diminutive distal adenomas and prediction of post-polypectomy surveillance intervals.RESULTS A total of 348 patients were evaluated.The Sn,Sp,PPV and NPV in differentiating neoplastic polyps from non-neoplastic polyps were,98.9%,85.7%,98.2% and 90.9% for MS;and 99.1%,57.7%,95.4% and 88.2% for NICE,respectively.The area under the receiver operating characteristic curve(AUC) for MS was 0.92(95%CI:0.86-0.98);and AUC for NICE was 0.78(95%CI:0.69,0.88).The Sn,Sp,PPV and NPV in predicting 'endoscopic resectability' were 98.9%,86.1%,97.8% and 92.5% for MS;and 98.6%,66.7%,94.7% and 88.9% for NICE,respectively.The AUC for MS was 0.92(95%CI:0.87-0.98);and the AUC for NICE was 0.83(95%CI:0.75-0.90).The AUC values were statistically different for both comparisons(P = 0.0165 and P = 0.0420,respectively).The accuracy for diagnosis of sessile serrated adenoma/polyp(SSA/P) with high confidence utilizing MS classification was 93.2%.The differentiation of SSA/P from other lesions achieved Sp,Sn,PPV and NPV of 87.2%,91.5%,89.6% and 98.6%,respectively.The NPV for predicting adenomas in diminutive rectosigmoid polyps(n = 150) was 96.6% and 95% with MS and NICE respectively.The calculated accuracy of post-polypectomy surveillance for MS group was 98.2%(167 out of 170) and for NICE group was 92.1%(139 out of 151).CONCLUSION The MS classification outperformed the NICE classification in differentiating neoplastic polyps and predicting endoscopic resectability.Both classifications met ASGE PIVI thresholds.Leonardo Zorrón Cheng Tao Pu Kuan Loong Cheong Doreen Siew Ching Koay Sze Pheh Yeap Amanda Ovenden Mahima Raju Andrew Ruszkiewicz Philip W Chiu James Y Lau Rajvinder Singh 2018World Journal of Gastrointestinal Endoscopy2018,10,9:4
3Intravenous fluid selection rationales in acute clinical management显示文摘BACKGROUND: Intravenous fluid(IVF) is commonly used in acute clinical management. This study aimed to review the choice and primary considerations in IVF prescriptions and to evaluate the adequacy of guidelines and trainings on it in the New Territories West Cluster(NTWC) of Hong Kong.METHODS: This is a descriptive study based on data collected from an online survey. Data were processed by SPSS for statistical analysis. This study focused on a general description and doctor-nurse between group comparison. Participants were asked the choice of IVF for nine acute clinical scenarios and provide reason. A 1–10 scale was used to assess the sufficiency of guideline, training and information, and time for revision on IVF prescription.RESULTS: 0.9% sodium chloride was the most familiar IVF(36%), followed by 5% Dextrose solution(26%). In the nine scenarios, the most chosen IVF was 0.9% sodium chloride(37%–61%). There was significant difference in the choice of IVF between doctors and nurses in 7 cases. The second most chosen IVF for doctors was Plasma-Lyte A while that for nurses was Gelofusine. Departmental practice was the most chosen reason to account for the prescription. The adequacy of guideline, information and training, and time for revision was rated 5. Doctors had significantly more time at work than nurses to update knowledge in IVF prescription(5.41 versus 4.57).CONCLUSION: 0.9% sodium chloride was mostly chosen. The choice of IVF was mainly based on departmental practice. Adequacy of guideline, information and training, and time for revision on IVF prescription were average, indicating significant training deficit.Wing Yan Shirley Cheung Wai Kwan Cheung Chun Ho Lam Yeuk Wai Chan Hau Ching Chow Ka Lok Cheng Yau Hang Wong Chak Wah Kam 2018World Journal of Emergency Medicine2018,9,1:3
4Multicenter randomised controlled trial comparing the high definition white light endoscopy and the bright narrow band imaging for colon polyps显示文摘AIM To compare high definition white light endoscopy and bright narrow band imaging for colon polyps' detection rates. METHODS Patients were randomised to high definition white light endoscopy(HD-WLE) or the bright narrow band imaging(b NBI) during withdrawal of the colonoscope. Polyps identified in either mode were characterised using b NBI with dual focus(b NBI-DF) according to the Sano's classification. The primary outcome was to compare adenoma detection rates(ADRs) between the two arms. The secondary outcome was to assess the negative predictive value(NPV) in differentiating adenomas from hyperplastic polyps for diminutive rectosigmoid lesions.RESULTS A total of 1006 patients were randomised to HD-WLE(n = 511) or b NBI(n = 495). The mean of adenoma per patient was 1.62 and 1.84, respectively. The ADRs in b NBI and HD-WLE group were 37.4% and 39.3%, respectively. When adjusted for withdrawal time(OR = 1.19, 95%CI: 1.15-1.24, P < 0.001), the use of b NBI was associated with a reduced ADR(OR = 0.69, 95%CI: 0.52-0.92). Nine hundred and thirty three polyps(86%) in both arms were predicted with high confidence. The sensitivity(Sn), specificity(Sp), positive predictive value and NPV in differentiating adenomatous from non-adenomatous polyps of all sizes were 95.9%, 87.2%, 94.0% and 91.1% respectively. The NPV in differentiating an adenoma from hyperplastic polyp using b NBI-DF for diminutive rectal polyps was 91.0%.CONCLUSION ADRs did not differ between b NBI and HD-WLE, however HD-WLE had higher ADR after adjustment of withdrawal time. b NBI surpassed the PIVI threshold for diminutive polyps.Rajvinder Singh Kuan Loong Cheong Leonardo Zorron Cheng Tao Pu Dileep Mangira Doreen Siew Ching Koay Carmen Kee Siew Chien Ng Rungsun Rerknimitr Satimai Aniwan Tiing-Leong Ang Khean-Lee Goh Shiaw Hooi Ho James Yun-Wong Lau 2017World Journal of Gastrointestinal Endoscopy2017,9,6:2
5Early-onset primary torsional dystonia in a 4-generation Chinese family with a mutation in the DYT1 gene显示文摘Primary torsion dystonia (PTD) is a clinically and genetically heterogeneous movement disorder. At least thirteen different types of dystonia can be distinguished on a genetic basis.1 The DYT1 gene was first mapped by Ozelius et al in 1989.2 (Kramer et) al3 linked the same locus to PTD in 12 Ashkenazi Jewish families in 1990. Most patients with early-onset generalized PTD were caused by the same three base pair (GAG) deletion in the DYT1 gene on chromosome 9q34.1,4,5 The product of the gene is a protein called torsinA.5 (Although the) function of this protein is as yet uncertain, it is widely distributed throughout the brain with high levels in the substantia nigra compacta dopamine neurones.YEUNG Wai Lan LAM Ching Wan CHENG Wai Tsoi SIN Ngai Chuen WONG Wing Kin WONG Chun Nei TSE Ka Ming FOK Tai Fai 2005Chinese Medical Journal2005,,10:2
6Blood neutrophil‐to‐lymphocyte ratio correlates with tumor size in patients with differentiated thyroid cancer显示文摘Chien‐Liang Liu Jie‐Jen Lee Tsang‐Pai Liu Yuan‐Ching Chang Yi‐Chiung Hsu Shih‐Ping Cheng 2012J. Surg. Oncol2012,,5:2
7Using rough set and support vector machine for network intrusion de- tection 显示文摘Chen Rung - Ching Cheng Kaifan Hsieh Chia- Fen 2009International Journal of Network Security & ItsApplications (IJNSA)2009,1,1:1
8The detection of dioxin- and estrogen-like pollutants in marine and freshwater fishes cultivated in Pearl River Delta, China显示文摘Wei X Ching L Y Cheng S H 2010Environmental Pollution2010,158,6:1
9Spectrum of toxic hepatitis following intentional paraquat ingestion: analysis of 187 cases显示文摘Chin‐Jung Yang Ja‐Liang Lin Dan‐Tzu Lin‐Tan Cheng‐Hao Weng Ching‐Wei Hsu Shen‐Yang Lee Shwu‐Hua Lee Chia‐Ming Chang Wey‐Ran Lin Tzung‐Hai Yen 2012Liver Int2012,,9:1
10Liquid-phase adsorption and desorption of phenol onto activated carbons with ultrasound显示文摘Juang Ruey Shin Lin Su Hsia Cheng Ching Hsien 2006Ultrasonics Sonochemistry2006,13,3:1
11Shikonin derivatives inhibited LPS-induced NOS in RAW 264.7 cells via downregulation of MAPK/NF-κB signaling显示文摘Yu Wen Cheng Ching Yi Chang Kou Lung Lin Chien Ming Hu Cheng Hui Lin Jaw Jou Kang 2008Journal of Ethnopharmacology2008,,2:1
12The use ofbioimpedance in the detection/screening of tongue cancer 显示文摘Sun TP Ching CS Cheng CS 2010Cancer Epidemiol2010,34,2:1
13Inorganic arsenic causes cell apoptosis in mouse cerebrum through an oxidative stress-regulated signaling pathway显示文摘Cheng Chien Yen Tsung Jung Ho Chin Ching Wu 2011Arch Toxicol2011,85,6:1
14A new approach for ranking fuzzy numbers by vistance method 显示文摘CHENG Ching Hsue 1998Fuzzy Sets and Systems1998,95,:1
15Expression of hypoxia-inducible factor (HIF)-1α and vascular endothelial growth factor (VEGF)-D as outcome predictors in resected esophageal squamous cell carcinoma显示文摘Ching Tzao Shih-Chun Lee Ho-Jui Tung Han-Shui Hsu Wen-Hu Hsu Guang-Huan Sun Cheng-Ping Yu Jong-Shiaw Jin Yeung-Leung Cheng 2008Disease Markers2008,,3:1
16The Cost Effects of Government - Subsided Credit: Evidence from Farmers' Credit Unions in Taiwan 显示文摘Huang - Jen Wang Ching - Cheng Chang Po - Chi Chen 2008Journal of Agricultural Economics2008,59,1:1
17A New Compact LTCC Bandpass Filter Using Negative Coupling 显示文摘Wei Shin Tung Yi Chyun Chiang Jui Ching Cheng 2005IEEE Microwave and Wireless Components Letters2005,15,10:1
18What Japanese semiconductor enterprises can learn from the asset - light business model for sustainable competitive advantage 显示文摘Hung - Ching Wen Jen - Hung Huang Yih - Lin Cheng 2012Asian Business & Management2012,,5:1
19Determination of Schistosoma japonicum circulating antigens in dilution serum by piezoelectric immunosensor and S/N enhancement 显示文摘Chien - Wei Cheng Ching - Kuo Chen Yi - Shen Chen 2008Biosensors and Bioelectronics2008,24,:1
20Graphite oxide as a photoeatalyst for hydrogen production from water 显示文摘Yeh Tefu Syu Jhihming Cheng Ching Chang Tingtsiang Tang Hsisheng 2010Advanced Functional Materials2010,20,14:1
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