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Liver Transplantation for Hepatitis B Virus-related Hepatocellular Carcinoma in Hong Kong

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Journal of Clinical and Translational Hepatology 2018年第3期6卷 283-288页

作者： ka wing Ma Kenneth Siu Ho Chok James Yan Yue Fung Chung Mau Lo Department of Surgery The University of Hong KongHong KongChina State Key Laboratory for Liver Research The University of Hong KongHong KongChina Department of Medicine The University of Hong KongHong KongChina

Hepatocellular carcinoma(HCC)is the fifth most common cancer and the third most common cause of cancer-related deaths *** resection is frequently limited in Hong Kong by hepatitis B virus-related cirrhosis,and liver transplantation is the treatment of *** transplanta-tion has been shown to produce superior oncological benefits,when compared to hepatectomy for *** developments in the context of patient selection criteria,modification of organ allocation,bridging therapy,salvage liver transplanta-tion and pharmaceutical breakthrough have improved the survival of HCC *** this article,we will share our experience in transplanting hepatitis B virus-related HCC patients in Hong Kong and discuss the recent progress in several areas of liver transplantation.

关键词： Liver transplantation Hepatitis B Hepatocel ular carcinoma Review

Effect of Scutellariae Radix extract on experimental dextran-sulfate sodium-induced colitis in rats

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World Journal of Gastroenterology 2007年第42期13卷 5605-5611页

作者： Ho-Lam Chung Grace Gar-Lee Yue ka-Fai To Ya-Lun Su Yu Huang wing-Hung Ko Department of Physiology Faculty of MedicineThe Chinese University of Hong Kong Shatin Hong Kong China Institute of Chinese Medicine The ChineseUniversity of Hong Kong Shatin Hong Kong China Department of Anatomical and Cellular Pathology Faculty of Medicine The Chinese University of Hong KongShatin Hong Kong China Institute of Materia Medica Chinese Academy ofMedical Sciences and Peking Union Medical College Beijing100050 China Department of Physiology and Lika Shing Institute of Health Sciences Faculty of Medicine TheChinese University of Hong Kong Shatin Hong Kong China

AIM： To investigate the effect of Scutellariae Radix extract （SRE） on ulcerative colitis （UC） in rats induced by dextran-sulfate sodium （DSS）. METHODS： Colitis was induced in male Sprague-Dawley （SD） rats （170-180 g） by 4% dextran sulfate sodium （DSS, wt/v, MW 54000） in drinking water for 8 d. The treated rats received 4% DSS and SRE orally （100 mg/kg per day）. Control rats received either tap water or SRE only. Macroscopic assessment which included body weight changes, fecal occult blood and stool consistency were determined daily. At the appointed time, the rats were sacrificed and the entire colons were removed. The colon length and the myeloperoxidase （MPO） activity were measured. The severity of colitis was graded by morphological and histological assessments. The ion transport activity of the colonic mucosa was assessed by electrophysiological technique. RESULTS： Rats treated with oral administration of 4% DSS regularly developed clinical and macroscopic signs of colitis. Treatment with SRE relieved the symptoms, including the reduction in body weight, shortening 2nd ulceration of the colon. Administration of SRE also significantly reduced the histological damage induced by DSS. Moreover, the Isc responses of the colonic mucosa to forskolin, were suppressed after the induction of colitis. The stimulated ion transport activity of DSS-rats treated with SRE displayed significant improvement in the secretory responsiveness. CONCLUSION： SRE was effective in treating acute DSS- induced ulcerative colitis, as gauged by reduced clinical disease, improved macroscopic and histological damage scores, and enhanced recovery of normal colonic secretory function.

关键词： Ulcerative colitis Scutellariae Radix Inflammatory bowel disease Colonic ion transport Traditional Chinese medicine

Experience of living donor liver transplantation for hepatocellular carcinoma in the University of Hong Kong Hospital

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Hepatoma Research 2022年第1期8卷 90-105页

作者： Janice Hoi Man Mok ka wing Ma Kenneth Siu Ho Chok Li ka Shing Faculty of Medicine The University of Hong KongHong KongChina Department of Surgery The University of Hong KongHong KongChina

Aim:To describe the current practise of living donor liver transplantation(LDLT)for hepatocellular carcinoma(HCC),including the patient selection criteria,surgical techniques,management of small-for-size syndrome,postoperative complications,and the results of our units,in the Liver Transplant Centre of Queen Mary Hospital,Hong Kong,one of the high-volume centres for LDLT in ***:Our centre practises careful selection for HCC patients using the University of California,San Francisco(UCSF)criteria,supplemented by alpha-fetoprotein level and the model for end-stage liver disease *** flexibility is offered to enthusiastic donors and recipients in LDLT while balancing the risks and *** pioneered in using the extended right lobe graft and the novel hepatic venoplasty technique,which lessen the risk of hyperperfusion and small-for-size syndrome with improved overall recipient *** were collected prospectively and presented as the mean values and ranges,or the number of patients in proportion of total patient ***:Of our patients,74.9% met the UCSF criteria,and 64.5% met the Milan criteria.A 5-year overall and disease-free survival rate of 78.9% and 76.3% were ***:LDLT is an ideal treatment for HCC in Hong Kong with regard to the critical organ shortage and high demand for *** current surgical techniques and post-transplant surveillance contribute to the positive outcome.

关键词： Living donor liver transplantation hepatocellular carcinoma high volume centre LDLT HCC

Chinese medicine practitioner turnover rate and the development of Chinese medicine in Hong Kong,China

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Journal of Traditional Chinese Medical Sciences 2021年第2期8卷 145-149页

作者： ka-Kit Chua Vivien Lau wing-Yan Lee Chun-Pong Lam School of Chinese Medicine Hong Kong Baptist UniversityHong KongChina Sin-Hua Herbalist's&Herb Dealer's Promotion Society Limited Hong KongChina Alumni Association of Full-time Chinese Medicine Undergraduate Hong Kong Baptist UniversityHong KongChina

Objective:To establish that the Hong Kong Special Administrative Region(HKSAR)government is actively promoting Chinese medicine(CM)and to examine turnover rate of Chinese medicine practitioners(CMPs)in Hong Kong,China in light of this governmental ***:This study covered two major areas:reviewing CM development in Hong Kong,and assessing the turnover rate of CMPs in Hong *** first part of the paper is a historical *** investigation of turnover rate had two *** 1,quantitative method,involved online questionnaires;Section 2,qualitative method comprised interviews with CMPs from different types of CM clinics to ascertain the reasons for the turnover among ***:A total of 123 online questionnaires were received in Section 1(55 from male CMPs;66 from female CMPs;2 respondents were unwilling to disclose their sex).The proportion of CMPs who had resigned in 2018e19 was 22.8%(28),of whom 5.7%(7)had resigned twice in one *** rates of resignation in 3 years and 5 years were up to 40.7%(50)and 56.9%(70),*** CMPs were interviewed in Section *** CMPs were more likely to resign than *** large gap between actual salary and expectations appeared to be the main reason for the high rate of ***:HKSAR government keenly desires to promote CM in Hong Kong,however,high turnover rate of CMPs was detected even under this positive governmental *** is an urgent need to conduct a more representative study of the reasons for the inclination of CMPs in Hong *** study highlights an important issue in CM development,and these results should remind different stakeholders in the CM industry and the government that CMPs need better career prospects and support in various areas.

关键词： Chinese medicine development Chinese Medicine Turnover rate Hong Kong SAR Career prospect Salary

A joint computational-experimental study of intracranial aneurysms:Importance of the aspect ratio

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Journal of Hydrodynamics 2016年第3期28卷 462-472页

作者： Simon Sui-Man LAI Abraham Yik-Sau TANG Anderson Chun-On TSANG Gilberto ka-Kit LEUNG Alfred Cheuk-Hang YU Kwok wing CHOW Department of Electrical and Electronic Engineering University of Hong Kong Hong Kong China Department of Mechanical Engineering University of Hong Kong Hong Kong China Department of Surgery Li Ka Shing Faculty of Medicine University of Hong Kong Hong Kong China Department of Electrical and Computer Engineering University of Waterloo Ontario Canada

Rupture of a cerebral aneurysm （abnormal swelling of blood vessel in the brain） will cause subarachnoid hemorrhage, and will result in an alarming rate of mortality and morbidity. A joint computational-experimental study is conducted to assess the importance of the aspect ratio in the dynamics of blood flow. The aspect ratio is defined here to be the ratio of the height of the aneurysm to the linear dimension of the neck. Idealized models of such aneurysms located near a bifurcation point were investigated. Numerical simulations for hemodynamic properties like shear stress and flow rate were performed. The computational results were verified experimentally with specially fabricated phantoms, blood mimicking fluid and Doppler ultrasound imaging. Excellent agreements were obtained. Two features are highlighted, providing information in the intensely debated link between rupture risk and geometric factors. On increasing the aspect ratios, firstly, a jet impinging on the distal part of the neck can be observed, and secondly, a region of positive shear stress gradient can be found there. Furthermore, computational analyses for four patient-specific models were conducted to correlate with the results of idealized models and to provide further clinical insight.

关键词： intracranial aneurysms aspect ratio Doppler ultrasound

Down-conversion materials for organic solar cells:Progress,challenges,and perspectives

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Aggregate 2022年第3期3卷 59-79页

作者： Ram Datt Swati Bishnoi Harrison ka Hin Lee Sandeep Arya Sonal Gupta Vinay Gupta wing Chung Tsoi Faculty of Science and Engineering Sustainable Product Engineering Centre for Innovative Functional Industrial CoatingsSwansea UniversityBay CampusFabian WaySwansea SA18ENUK Advanced Materials and Metrology Division Council of Scientific And Industrial Research-National Physical LaboratoryDr.K.S.Krishnan MargNew Delhi 110012India Department of Physics University of JammuJammuJammu and Kashmir 180006India Department of Conducting Polymers Institute of Macromolecular ChemistryCzech Academy of SciencesPrague 616206Czech Republic Department of Physics Khalifa University of Science and TechnologyP.O.Box 127788Abu DhabiUnited Arab Emirates

Organic solar cells(OSCs)in terms of power conversion efficiency(PCE)and operational lifetime have made remarkable progress during the last decade by improving the active layer materials and introducing new *** newly developed wide bandgap organic donor and low bandgap acceptor molecules covered the absorption from the visible to the near-infrared *** the incident high energy region(UV)is not in favor of *** absorption causes thermalization losses and photoinduced degradation,which hinders the PCE and lifetime of ***,lanthanide and non-lanthanide-based down-conversion(DC)materials have been introduced,which can effectively convert the high-energy photons(UV)to low-energy photons(visible)and resolve the spectral mismatch losses that limit the absorption of OSCs in high energy incident ***,the DC materials also protect the OSCs from UV-induced *** DC materials were also proposed to cross the Shockley-Queisser efficiency limit of the solar *** this review,the need for DC materials and their processing method for OSCs have been thoroughly ***,the main emphasis has been given to developing lanthanides and non-lanthanides-based DC materials for OSCs,their applications,and their impact on photovoltaic device performance,stability,and future perspectives.

关键词： down-conversion down-shifting lanthanides organic solar cells photostability

Acupuncture improves cognitive function A systematic review

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Neural Regeneration Research 2013年第18期8卷 1673-1684页

作者： Mason Chin Pang Leung ka Keung Yip Chung Tsung Lam ka Shun Lam Wai Lau wing Lam Yu Amethyst King Man Leung Kwok-fai So Department of Rehabilitation Sciences the Hong Kong Polytechnic University Cambridge Regional College Department of Anatomy and the State Key Laboratory of Brain and Cognitive Science the University of Hong Kong Pokfulam Hong Kong Special Administrative Region China GHM Institute of CNS Regeneration Jinan University

BACKGROUND： Acupuncture has been used as a treatment for cognitive impairment. OBJECTIVE： This review assesses clinical evidence for or against acupuncture as a treatment for cognitive impairment. This review also discusses the proposed mechanism（s） that could link acupuncture to improved cognitive function. METHODS： We searched the literature using PolyUone search from its inception to January 2013, with full text available and language limited to English. Levels of evidence were examined using Oxford Centre for Evidence-based Medicine-Levels of Evidence （March, 2009）. RESULTS： Twelve studies met the inclusion criteria： 3 human studies and 9 animal studies. Levels of evidence ranged from level lb to level 5. CONCLUSION： Most animal studies demonstrated a positive effect of acupuncture on cognitive impairment. However, the results of human studies were inconsistent. Further high-quality human studies with greater statistical power are needed to determine the effectiveness of acupuncture and an optimal protocol.

关键词： neural regeneration dementia acupuncture electroacupuncture learning cognitive cognition memory neuroregeneration

Percutaneous closure of gastrorenal shunt as adjunctive therapy for esophageal carcinoma

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Journal of Interventional Medicine 2023年第1期6卷 46-48页

作者： Yanlin Li Simon Ying-Kit Law ka-On Lam Anthony wing-Ip Lo Department of Diagnostic Radiology School of Clinical MedicineThe University of Hong KongHong KongChina Department of Surgery School of Clinical MedicineThe University of Hong KongHong KongChina Department of Clinical Oncology School of Clinical MedicineThe University of Hong KongHong KongChina Department of Pathology School of Clinical MedicineThe University of Hong KongHong KongChina

The embolization of gastric varices is an established technique for acute bleeding in patients with portal hypertension. Here, we report an attempt to embolize a gastrorenal shunt to facilitate esophagectomy in a patient with an esophageal malignancy. To our knowledge, this is the first case in the literature to highlight the role of interventional medicine in the treatment of patients with esophageal malignancy.

关键词： Intervention Radiology Oesophageal cancer Gastrointestinal surgery Oncology

Isolated penile urethral injury:A rare case following male coital trauma

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Asian Journal of Urology 2015年第3期2卷 175-178页

作者： ka wing Wong Brian Sze Ho Ho Chi Ho Ip Ming Kwong Yiu Division of Urology Department of SurgeryUniversity of Hong KongPokfulamHong KongChina

Penile fractures are an uncommon urological ***,penile fractures involve the corpus cavernosum and are sometimes associated with urethral *** corpus spongiosum and urethral injuries without concomitant corpus cavernosum injury are,however,*** proper knowledge of the management of penile fractures and urethral injuries,this distinct entity can be diagnosed,assessed and managed successfully without complications.

关键词： Penile fracture Urethral injury Penis Corpus spongiosum Urological trauma Urethroplasty