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Low DHEAS levels are associated with depressive symptoms in elderly Chinese men： results from a large study

Asian Journal of Andrology 2011年第6期13卷 898-902页

作者： samuel ys wong Jason C Leung Timothy Kwok Claes Ohlsson Liesbeth Vandenput Ping C Leung Jean Woo School of Public Health and Primary Care School of Public Health The Chinese University of Hong Kong Hong Kong China jockey Club Centre for Osteoporosis Care and Control The Chinese University of Hong Kong Hong Kong China Department of Medicine and Therapeutics The Chinese University of Hong Kong Hong Kong China Center for Bone Research Department of Internal Medicine University of Gothenburg Gothenburg SE-413 45 Sweden Division of Geriatrics Department of Medicine and Therapeutics The Chinese University of Hong Kong Hong Kong China

This study investigated the association between depressive symptoms in elderly Chinese men and the total testosterone, dehydroepiandrosterone （DHEA）, DHEA sulphate （DHEAS）, oestradiol and sex hormone-binding globulin （SHBG） levels, and the free androgen index. Cross-sectional data from 1147 community-dwelling elderly men, aged 65 and older, were used. Depressive symptoms were measured using the Chinese Geriatric Depression Scale （GDS）. Total testosterone, free testosterone, DHEA, DHEAS, total oestradiol, the free androgen index and SHBG levels were assessed. DHEA was significantly associated with GDS score, and there was a trend towards DHEAS association, but this was not significant （p=-0. 110, P=0.015; p=-0.074, P=0.055）. However, no association was seen between depressive symptoms and total testosterone levels, free testosterone levels, oestradiol levels or SHBG levels. In terms of the presence of clinically relevant depressive symptoms, there were no statistically significant differences between patients in the lowest quartile of sex steroid hormone levels and those in other quartiles of sex steroid hormone levels. Similarly to Western studies, our study shows that DHEA and DHEAS levels are associated with depressive symptoms.

关键词： Chinese dehydroepiandrosterone depression elderly men testosterone

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Elderly healthcare service at the community health centers in the Pearl River Delta region,China

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Family Medicine and Community Health 2013年第1期1卷 30-36页

作者： NAN YANG XIAOLIN WEI HAITAO LI ZHENZHEN ZHANG JAMIE RODAS samuel ys wong MARTIN CS wong YANG GAO JIAJI WANG DONALD KT LI JINLING TANG SIAN GRIFFITHS The Jockey Club School of Public Health and Primary Care the Chinese University of Hong KongHong Kong SARChina School of public health Guangzhou Medical UniversityGuangzhouChina Bauhinia Foundation Research Centre Hong Kong SARChina

Objective:The recent population census showed China had officially become a graying *** the meantime,China also faces a growing burden of non-communicable *** 2009,a series of policies have been implemented to enhance primary care at the community *** study describes the elderly care services provided in the differently organized community health centers(CHCs).Methods:It covered 13 CHCs of six cities located within the Pearl River Delta(PRD)***-depth interviews were conducted with a total of 59 health administrators,CHC managers,and CHC doctors regarding elderly ***:The study found that accessibility of healthcare for elders has been improved due to the development of health insurance schemes as well as preferential policy to encourage the CHC utilization by the *** the CHCs provide health examinations and chronic disease management to the permanent elderly within their catchment ***,some preventative care such as fall prevention,immunization and mental health management are not ***:Key barriers include low capacity of health service providers in the CHCs,and a lack of government investment in *** report provides an empirical evidence for the health care reform in China.

关键词： Elderly care Community health center China

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The combined role of MRI prostate and prostate health index in improving detection of significant prostate cancer in a screening population of Chinese men

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Asian Journal of Andrology 2023年第6期25卷 674-679页

作者： Peter KF Chiu Thomas YT Lam Chi-Fai Ng Jeremy YC Teoh Carmen CM Cho Hiu-Yee Hung Cindy Hong Monique J Roobol Winnie CW Chu samuel ys wong Joseph JY Sung SH Ho Urology Centre Department of SurgeryThe Chinese University of Hong KongHong Kong SARChina The Jockey Club School of Public Health and Primary Care The Chinese University of Hong KongHong Kong SARChina Department of Imaging and Interventional Radiology The Chinese University of Hong KongHong Kong SARChina Erasmus MC Cancer Institute Erasmus Medical UniversityRotterdam 3015The Netherlands Lee Kong Chian School of Medicine Nanyang Technological UniversitySingapore 308232Singapore

Using prostate-specific antigen(PSA)for prostate cancer(PCa)screening led to overinvestigation and overdiagnosis of indolent *** aimed to investigate the value of prostate health index(PHI)and magnetic resonance imaging(MRI)prostate in an Asian PCa screening *** aged 50–75 years were prospectively recruited from a community-based PSA screening *** with PSA 4.0–10.0 ng ml^(−1) had PHI result *** prostate was offered to men with PSA 4.0–50.0 ng ml−1.A systematic prostate biopsy was offered to men with PSA 4.0–9.9 ng ml^(−1) and PHI≥35,or PSA 10.0–50.0 ng ml^(−1).Additional targeted prostate biopsy was offered if they had PI-RADS score≥*** significant PCa(csPCa)was defined as the International Society of Urological Pathology(ISUP)grade group(GG)≥2 or ISUP GG 1 with involvement of≥30%of total systematic *** total,12.8%(196/1536)men had PSA≥4.0 ng ml^(−1).Among 194 men with PSA 4.0–50.0 ng ml^(−1),187(96.4%)received MRI *** them,28.3%(53/187)had PI-RADS≥3 ***,7.0%(107/1536)men were indicated for biopsy and 94.4%(101/107)men received *** the men received biopsy,PCa,ISUP GG≥2 PCa,and csPCa was diagnosed in 42(41.6%),24(23.8%),and 34(33.7%)men,*** with PSA/PHI pathway in men with PSA 4.0–50.0 ng ml^(−1),additional MRI increased diagnoses of PCa,ISUP GG≥2 PCa,and csPCa by 21.2%(from 33 to 40),22.2%(from 18 to 22),and 18.5%(from 27 to 32),*** benefit of additional MRI was only observed in PSA 4.0–10.0 ng ml^(−1),and the number of MRI needed to diagnose one additional ISUP GG≥2 PCa was 20 in PHI≥35 and 94 in PHI<*** them,45.4%(89/196)men with PSA≥4.0 ng ml^(−1) avoided unnecessary biopsy with the use of PHI and MRI.A screening algorithm with PSA,PHI,and MRI could effectively diagnose csPCa while reducing unnecessary *** benefit of MRI prostate was mainly observed in PSA 4.0–9.9 ng ml^(−1) and PHI≥35 *** was an important risk stratification step for PCa

关键词： magnetic resonance imaging prostate prostate cancer prostate health index prostate-specific antigen screening

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Emotionless Holism:Factor and Rasch Analysis of the Chinese Integrative Medicine Attitude Questionnaire

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Chinese Journal of Integrative Medicine 2012年第6期18卷 457-465页

作者： Vincent Chung Marc Chong Lau Chun Hong Polly HX Ma samuel ys wong Sian M Griffiths School of Public and Primary Care Chinese University of Hong Kong

T Objective： To examine the Eastem-Westem difference in the interpretation of Integrative Medicine Attitude Questionnaire （IMAQ） by assessing the psychometric properties of a revised Chinese medicine （CM）- specific version of IMAQ （CM-IMAQ）. Methods： Factor and Rasch analysis were performed with data collected from a mail survey of 165 Hong Kong Western medical doctors （WMD） randomly sampled from the official registry. The structural validity, unidimensionality, item fit, and differential item functioning （DIF） of the Hong Kong CM-IMAQ were evaluated. Results： Confirmatory factor analysis （CFA） demonstrated that the original IMAQ factor structure was not concordant with our data on Chinese WMD, and subsequent explanatory factor analysis （EFA） validated a new three-factor model for CM-IMAQ：（1） attitude towards tonification , （2） attitude towards the effectiveness of CM, and （3） attitude towards CM knowledge. The original IMAQ factor on holism and doctor-patient relationship disappeared. Rasch analysis confirmed the unidimensionality of tonification and the effectiveness domains, but further refinement of the knowledge domain is needed. Coaclusions： Cultural adaptation of the IMAQ has demonstrated differences between Eastern and Westem doctors trained in allopathic medicine in their interpretations of hoiism in healthcare. For Chinese WMD, the emphasis of holistic care is placed on tonifying＇ the body rather than on nurturing the mind and spidt. Confucian and Taoist conceptualizations of mental health as well as the persistent stigma towards mental illness within modern Chinese culture may explain why Chinese WMD do not regard mental health promotion as part of routine healthcare.

关键词： psychometrics questionnaires Chinese medicine holistic health attitude of health personnel

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Which Chinese Herbal Medicine Formula Performs Best when used with Salmeterol for Chronic Obstructive Pulmonary Disease? Network meta-analysis of Comparative Effectiveness Trials

Which Chinese Herbal Medicine Formula Performs Best when use...

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第十四届全国中药和天然药物学术研讨会

作者： Wu Xinyin Robin ST Ho Vincent CH Chung samuel ys wong The Chinese University of Hong Kong

＜正＞Background Chinese Herbal Medicine formulae（CHM）are widely used in the treatment of Chronic Obstructive Pulmonary Disease（COPD）,on top of guideline recommended ***,among various CHM formulae,there are uncert...

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Are Meta-analyses of Chinese Herbal Medicine Trials Trustworthy and Clinically Applicable?A Cross-sectional Study

Are Meta-analyses of Chinese Herbal Medicine Trials Trustwor...

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第十四届全国中药和天然药物学术研讨会

作者： Robin ST Ho Wu Xinyin Vincent CH Chung Daisy Fung samuel ys wong Justin CW Wu JC School of Public Health and Primary Care The Chinese University of Hong Kong Hong Kong Institute of Integrative Medicine The Chinese University of Hong Kong

＜正＞Background Meta-analysis（MA）on Chinese herbal medicine（CHM）trials is increasingly published and indexed in major international databases but their trustworthiness is *** aimed to assess the bibliographical c...

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Flame Synthesis of Zr/ZSM-5 Catalysts with Tunable Acidity for the Oxidative Dehydrogenation of Propane to Propene

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Journal of Thermal Science 2024年第1期33卷 268-283页

作者： DANIEL samuel FONZEU MONGUEN Cedric Karel WU Lingnan TIAN Zhenyu Institute of Engineering Thermophysics Chinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Tuning the surface acidity of ZSM-5 catalyst is essential to achieve desired propene selectivity and *** several ratios of Zr were utilized to modify ZSM-5 via flame spray pyrolysis technique coupled with a pulse spray evaporation *** interaction between Zr and ZSM-5 in the flame influenced the physicochemical and acidity properties of the Zr/*** increasing Zr ratio in ZSM-5 shows coated layers of irregular nano-sized Zr with an increase in crystallite sizes due to the synergetic effect between Zr and *** surface chemical analysis revealed increased lattice oxygen on the Zr modified ZSM-5(1:4) sample compared to other *** acidity analysis revealed the Lewis and Br?nsted acid distribution in the weak and medium acid sites on the catalyst ***,the increase in Zr loading decreased the concentration of Br?nsted acid sites and tuned the catalyst surface to more Lewis acidity,promoting propene selectivity and hindering the over-oxidation of *** modified ZSM-5 catalysts were examined in a fixed bed reactor within 300℃-700℃ at a gas hourly space velocity(GHSV) of 6000 mL·g(catalysts)^(-1)·h^(-1) for the oxidative dehydrogenation of propane(ODHP) to *** the catalysts,Zr/ZSM-5(1:4) exhibited the best propene yield, with 57.19% propane conversion and 75.54% selectivity to propene and the highest *** work provides a promising strategy for tuning the surface acidity of ZSM-5 with Zr for ODHP applications.

关键词： flame synthesis Zr modified ZSM-5 catalyst ODHP surface acidity lattice oxygen

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Cost effectiveness of nonpharmacological prevention programs for diabetes:A systematic review of trial-based studies

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Chronic Diseases and Translational Medicine 2024年第1期10卷 12-21页

作者： Yongyi Xiong Zhaohua Huo samuel Y.S.wong Benjamin H.K.Yip Jockey Club School of Public Health and Primary Care Prince of Wales HospitalThe Chinese University of Hong KongShatinHong KongChina

Trial-based economic value of prevention programs for diabetes is *** aimed to review the cost-effectiveness of nonpharmacological interventions to prevent type-2 diabetes mellitus(T2DM)for high-risk *** electronic databases were searched up to March *** assessing both the cost and health outcomes of nonpharmacological interventions for people at high-risk of T2DM were *** quality of the study was assessed by the Consolidated Health Economic Evaluation Reporting Standards 2022 *** primary outcome for synthesis was incremental cost-effectiveness ratios(ICER)for quality-adjusted life years(QALys),and costs were standardized in 2022 US *** synthesis was performed,considering different types and delivery methods of *** studies included five based on the US diabetes prevention program(DPP),six on non-DPP-based lifestyle interventions,four on health education,and one on screening plus lifestyle *** with usual care,lifestyle interventions showed higher potential of cost-effectiveness than educational *** lifestyle interventions,DPP-based programs were less cost-effective(median of ICERs:$27,077/QALY)than non-DPP-based programs(median of ICERs:$1395/QALY)from healthcare perspectives,but with larger decreases in diabetes ***,the cost-effectiveness of interventions was more possibly realized through the combination of different delivery *** interventions to prevent T2DM in high-risk populations are both cost-effective and feasible in various ***,economic evidence from low-and middle-income countries is still lacking,and interventions delivered by trained laypersons and combined with peer support sessions or mobile technologies could be potentially a cost-effective solution in such settings with limited resources.

关键词： economic evaluation nonpharmacological interventions pre-diabetes prevention

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Statin, aspirin and metformin use and risk of hepatocellular carcinoma related outcomes following liver transplantation: A retrospective study

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World Journal of Transplantation 2024年第3期14卷 120-131页

作者： William Chung Kevin wong Noel Ravindranayagam Lauren Tang Josephine Grace Darren wong Danny Con Marie Sinclair Avik Majumdar Numan Kutaiba samuel Hui Paul Gow Vijayaragavan Muralidharan Alexander Dobrovic Adam Testro Department of Gastroenterology Austin HealthHeidelberg 3084VictoriaAustralia Victorian Liver Transplant Unit Austin HealthHeidelberg 3084VictoriaAustralia Department of Radiology Austin HealthHeidelberg 3084VictoriaAustralia Department of Gastroenterology Monash HealthClayton 3168VictoriaAustralia Department of Surgery University of MelbourneAustin HealthHeidelberg 3048VictoriaAustralia Department of Surgery Beacon LaboratoryAustin PrecinctThe University of MelbourneAustin HospitalHeidelberg 3048VictoriaAustralia

BACKGROUND Liver transplantation(LT)is a potentially curative therapy for patients with hepatocellular carcinoma(HCC).HCC-recurrence following LT is associated with reduced *** is increasing interest in chemoprophylaxis to improve HCC-related outcomes *** To investigate whether there is any benefit for the use of drugs with proposed chemoprophylactic properties against HCC,and patient outcomes following *** This was a retrospective study of adult patients who received Deceased Donor LT for HCC from 2005-2022,from a single Australian *** use was defined as statin,aspirin or metformin therapy for≥29 days,within 24 months post-LT.A cox proportional-hazards model with time-dependent covariates was used for survival *** measures were the composite-endpoint of HCC-recurrence and all-cause mortality,HCC-recurrence and HCC-related *** analysis was performed to account for immortality time bias and statin *** Three hundred and five patients were included in this study,with 253(82.95%)males with a median age of 58.90 *** of liver disease were 150(49.18%)hepatitis C,73(23.93%)hepatitis B(HBV)and 33(10.82%)non-alcoholic fatty liver disease(NAFLD).56(18.36%)took statins,51(16.72%)aspirin and 50(16.39%)*** a median follow-up time of 59.90 months,34(11.15%)developed HCC-recurrence,48(15.74%)died,17(5.57%)from HCC-related ***,aspirin or metformin use was not associated with statistically significant differences in the composite endpoint of HCC-recurrence or all-cause mortality[hazard ratio(HR):1.16,95%CI:0.58-2.30;HR:1.21,95%CI:0.28-5.27;HR:0.61,95%CI:0.27-1.36],HCC-recurrence(HR:0.52,95%CI:0.20-1.35;HR:0.51,95%CI:0.14-1.93;HR 1.00,95%CI:0.37-2.72),or HCC-related mortality(HR:0.32,95%CI:0.033-3.09;HR:0.71,95%CI:0.14-3.73;HR:1.57,95%CI:0.61-4.04)*** dosing was not associated with statist-ically significant differences in HCC-related ***

关键词： Liver transplantation Hepatocellular carcinoma Transplant oncology Statins HMG-Co-A reductase Aspirin Metformin Mammalian target of rapamycin

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Superior antibody and membrane protein‑specific T‑cell responses to CoronaVac by intradermal versus intramuscular routes in adolescents

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World Journal of Pediatrics 2024年第4期20卷 353-370页

作者： Jaime S.Rosa Duque samuel M.S.Cheng Carolyn A.Cohen Daniel Leung Xiwei Wang Xiaofeng Mu Yuet Chung Tsun Ming Lau Manni Wang Wenyue Zhang Yanmei Zhang Howard H.W.wong Leo C.H.Tsang Sara Chaothai Tsz Chun Kwan John K.C.Li Karl C.K.Chan Leo L.H.Luk Jenson C.H.Ho Wing Yan Li Amos M.T.Lee Jennifer H.Y.Lam Sau Man Chan Wilfred H.S.wong Issan Y.S.Tam Masashi Mori Sophie A.Valkenburg Malik Peiris Wenwei Tu Yu Lung Lau Department of Paediatrics and Adolescent Medicine The University of Hong KongHong KongChina School of Public Health The University of Hong KongHong KongChina HKU‑Pasteur Research Pole School of Public HealthThe University of Hong KongHong KongChina Research Institute for Bioresources and Biotechnology Ishikawa Prefectural UniversityNonoichiJapan Department of Microbiology and Immunology Peter Doherty Institute for Infectionand ImmunityUniversity of MelbourneMelbourneVICAustralia Center for Immunology and Infection C2i Hong KongChina

Background Optimising the immunogenicity of COVID-19 vaccines to improve their protection against disease is *** dosing by intradermal(ID)administration has been shown to be equally immunogenic as intramuscular(IM)administration for several vaccines,but the immunogenicity of ID inactivated whole severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)at the full dose is *** study(NCT04800133)investigated the superiority of antibody and T-cell responses of full-dose CoronaVac by ID over IM administration in *** Participants aged 11–17 years received two doses of IM or ID vaccine,followed by the 3rd dose 13–42 days *** and cellular immunogenicity outcomes were measured post-dose 2(IM-CC versus ID-CC)and post-dose 3(IMCCC versus ID-CCC).Doses 2 and 3 were administered to 173 and 104 adolescents,*** Spike protein(S)immunoglobulin G(IgG),S-receptor-binding domain(RBD)IgG,S IgG Fcγreceptor IIIa(FcγRIIIa)-binding,SNM[sum of individual(S),nucleocapsid protein(N),and membrane protein(M)peptide pool]-specific interleukin-2(IL-2)+CD4^(+),SNM-specific IL-2^(+)CD8^(+),S-specific IL-2^(+)CD8^(+),N-specific IL-2^(+)CD4^(+),N-specific IL-2^(+)CD8^(+)and M-specific IL-2^(+)CD4^(+)responses fulfilled the superior and non-inferior criteria for ID-CC compared to IM-CC,whereas IgG avidity was *** ID-CCC,S-RBD IgG,surrogate virus neutralisation test,90%plaque reduction neutralisation titre(PRNT90),PRNT50,S IgG avidity,S IgG FcγRIIIa-binding,M-specific IL-2^(+)CD4^(+),interferon-γ+CD8^(+)and IL-2^(+)CD8^(+)responses were superior and non-inferior to *** estimated vaccine efficacies were 49%,52%,66%and 79%for IM-CC,ID-CC,IM-CCC and ID-CCC,*** ID groups reported more local,mild adverse *** This is the first study to demonstrate superior antibody and M-specific T-cell responses by ID inactivated SARSCoV-2 vaccination and serves as the basis for future research to improve the

关键词： CoronaVac Coronavirus disease 2019 Immunity Intradermal Vaccine

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