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Traditional Chinese medicine poisoning in the emergency departments in Hong Kong: Trend, clinical presentation and predictors for poor outcome

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World Journal of Emergency Medicine 2021年第2期12卷 143-150页

作者： Rex Pui Kin Lam Eric Ho Yin Lau wai Lam yip Joe Kai Shing Leung Matthew Sik Hon Tsui Emergency Medicine Unit Li Ka Shing Faculty of Medicinethe University of Hong KongHong KongChina Accident and Emergency Department Queen Mary HospitalHong KongChina Accident and Emergency Department Pamela Youde Nethersole Eastern HospitalHong KongChina School of Public Health Li Ka Shing Faculty of Medicinethe University of Hong KongHong KongChina

Dear editor,Traditional Chinese medicine (TCM) is popular in many countries,especially in the Chinese population.^([1,2]) In Hong Kong,it has been estimated that around 15%of the population consumed Chinese medicine products/herbs in the preceding *** reasons for consumption include regulating bodily functions,curing disease,and building up health.

关键词： has editor curing

Surgical outcomes for unilateral superior oblique palsy in Chinese population: a retrospective study

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International Journal of Ophthalmology(English edition) 2015年第1期8卷 107-112页

作者： Gordon Shing Kin Yau Victor Tak Yau Tam Jacky wai yip Lee Theo Tak Kwong Chan Can Yin Fun Yuen Department of Ophthalmology Caritas Medical Centre Department of Anatomy Faculty of MedicineUniversity of Hong Kong

AIM: To evaluate the outcome after surgery for unilateral superior oblique(SO) palsy in ***: The medical records of 39 patients that underwent surgery for unilateral SO palsy between January 2003 and December 2012 at Caritas Medical Centre, Hong Kong, were retrospectively reviewed. All surgeries were performed by a single surgeon. Pre-operative assessments for vertical deviation, cyclo-deviation, and Knapp’s classification were obtained to determine the nature and degree of surgical *** deviation was measured at 1wk; 1, 6mo and on last follow-up day post-operatively. Cyclo-deviation was measured on last follow-up day ***: During the 10 y period, 39 subjects were recruited. The most common etiology was congenital(94.9%). Knapp’s Type III(66.7%) and Type I(12.8%)classifications were the most common subtypes. To treat SO palsy, the most common surgical procedures were:isolated inferior oblique(IO) anteriorization(41.0%),isolated IO myectomy(10.3%), and isolated IO recession(10.3%). At 3.5 ±2.1y post-operatively, the vertical deviation was significantly reduced(15.1 ±6.2 PD versus0.5±1.4 PD, P <0.0001) without significant improvement in cyclo-deviation(P =0.5). Initial vertical deviation was correlated with cyclo-torsion(r =0.4, P =0.007). Those with over-correction had greater initial vertical deviation(19.4±7.2 PD versus 13.2±4.3 PD, P =0.003). After a single operation, 84.6% of subjects achieved a vertical deviation within ±3 PD.· CONCLUSION: The majority of subjects achieved corrected vertical deviation after a single surgery although there was no improvement in *** with over-correction of primary position deviation had greater preoperative vertical deviation and it may be related to simultaneous multiple muscle surgery.

关键词： superior oblique palsy vertical deviation surgery diplopia

Is it safe to perform operation for colorectal malignancy in Chinese patients without DVT prophylaxis？ An 8-year experience from a regional hospital in Hong Kong

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Chinese Medical Journal 2010年第15期123卷 1973-1975页

作者： Day Weida Lau Ying Yu Patrick yip wai Chun Andrew Department of Surgery Kwong Wah Hospital Hong Kong China

Background Colorectal surgery was regarded as one of the high risk surgery for post-operative deep vein thrombosis （DVT） and pulmonary embolism. This study aimed at investigating the incidence of venous thromboembolism （VTE） after colorectal surgery for *** Data were collected from the prospective database of colorectal malignancy from 2000 to 2008. A total of 1421 colorectal （open and laparoscopic） operations were performed for the colorectal malignancy without DVT *** Only seven patients （0.5%） developed symptomatic DVT and one of them had complication of pulmonary embolism without mortality. Open operation for colorectal malignancy was identified as possible risk factor of DVT,however, risk factors like operative time, low anterior resection, sex, age etc. were not *** Risk of venous thromboembolism after colorectal operation is low in Chinese of our locality and it might be safe to perform colorectal operation for malignancy without DVT prophylaxis.

关键词： colorectal carcinoma deep vein thrombosis

Virtual reality based multiple life skill training for intellectual disability:A multicenter randomized controlled trial

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Engineered Regeneration 2022年第2期3卷 121-130页

作者： James Chung-wai Cheung Ming Ni Andy Yiu-Chau Tam Tim Tin-Chun Chan Alyssa Ka-Yan Cheung Ocean Yu-Hong Tsang Chi-Bun yip Wing-Kai Lam Duo wai-Chi Wong Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Research Institute for Smart Ageing The Hong Kong Polytechnic UniversityHong Kong 999077China Jockey Club Smart Ageing Hub Department of Biomedical EngineeringFaculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Department of Orthopaedics Pudong New Area People’s Hospital Affiliated to Shanghai Jiaotong UniversityShanghai 201299China Social Service Department Yan Chai HospitalHong Kong 999077China C2 Innovations and Research Limited Hong Kong 999077China Department of Kinesiology Shenyang Sport UniversityShenyang 110102China Sports Information and External Affairs Centre Hong Kong Sports InstituteHong Kong 999077China

Life skill-based training is essential for intellectual disabled individuals to regain autonomy and social *** reality(VR)could deliver a nascent application that is more engaging and *** objective of this study was to evaluate the training effects of the VR-based multiple life skill training program on life skill perfor-mance,self-efficacy,memory,cognitive and behavioral functions via a multicenter randomized controlled trial.A total of 145 intellectual disabled participants were recruited for a randomized controlled trial with three in-tervention arms:VR(n=42);traditional(n=53);and control(n=50).The life skill tasks for the interventions included 1)grocery shopping,2)cooking,and 3)kitchen *** measures were performance scores for the three tasks,self-efficacy scale,digit span score,and Frontal Assessment Battery score,graded by blinded ***-after effects of each group were evaluated using separated Wilcoxon Signed-rank *** sig-nificantly improved cooking,cleaning performance,and memory span,while traditional training significantly improved shopping,cooking,and cleaning *** generalized estimating equation evaluated effects between groups adjusted for age,gender and intelligence quotient(IQ).VR had significantly larger improvement effects in cooking and cleaning than the control group and memory span compared to traditional training and controls *** appeared to be a significant confounder on the training *** work may consider developing artificial intelligence to customize programs depending on IQ level.

关键词： Mental retardation Intellectual development X-reality Immersive rehabilitation Metaverse

A new osteogenic protein isolated from Dioscorea opposita Thunb accelerates bone defect healing through the mTOR signaling axis

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Bioactive Materials 2023年第9期27卷 429-446页

作者： John Akrofi Kubi Augustine Suurinobah Brah Kenneth Man Chee Cheung Yin Lau Lee Kai-Fai Lee Stephen Cho Wing sze Wei Qiao Kelvin wai-Kwok Yeung Department of Orthopaedics and Traumatology Li Ka Shing Faculty of MedicineThe University of Hong Kong(HKU)Hong Kong S.A.R.PR China Shenzhen Key Laboratory for Innovative Technology in Orthopaedic Trauma HKU-Shenzhen HospitalShenzhen518053PR China Department of Obstetrics and Gynaecology Li Ka Shing Faculty of MedicineHKU21 Sassoon RoadHong Kong S.A.RPR China Shenzhen Key Laboratory of Fertility Regulation Reproductive Medicine CenterHKU-Shenzhen HospitalShenzhenPR China Department of Biology Faculty of ScienceHong Kong Baptist UniversityKowloon TongHong Kong S.A.RPR China Golden Meditech Center for NeuroRegeneration Sciences Hong Kong Baptist UniversityKowloon TongHong Kong S.A.RPR China Applied Oral Sciences and Community Dental Care Faculty of DentistryHong Kong S.A.RPR China

Delayed bone defect repairs lead to severe health and socioeconomic impacts on patients. Hence, there are increasing demands for medical interventions to promote bone defect healing. Recombinant proteins such as BMP-2 have been recognized as one of the powerful osteogenic substances that promote mesenchymal stem cells (MSCs) to osteoblast differentiation and are widely applied clinically for bone defect repairs. However, recent reports show that BMP-2 treatment has been associated with clinical adverse side effects such as ectopic bone formation, osteolysis and stimulation of inflammation. Here, we have identified one new osteogenic protein, named ‘HKUOT-S2’ protein, from Dioscorea opposita Thunb. Using the bone defect model, we have shown that the HKUOT-S2 protein can accelerate bone defect repair by activating the mTOR signaling axis of MSCs-derived osteoblasts and increasing osteoblastic biomineralization. The HKUOT-S2 protein can also modulate the transcriptomic changes of macrophages, stem cells, and osteoblasts, thereby enhancing the crosstalk between the polarized macrophages and MSCs-osteoblast differentiation to facilitate osteogenesis. Furthermore, this protein had no toxic effects in vivo. We have also identified HKUOT-S2 peptide sequence TKSSLPGQTK as a functional osteogenic unit that can promote osteoblast differentiation in vitro. The HKUOT-S2 protein with robust osteogenic activity could be a potential alternative osteoanabolic agent for promoting osteogenesis and bone defect repairs. We believe that the HKUOT-S2 protein may potentially be applied clinically as a new class of osteogenic agent for bone defect healing.

关键词： Dioscorea spp protein Mesenchymal stem cells(MSCs) Osteoblast differentiation Bone mineral density(BMD) Bone defect repair mTOR signaling pathway

Rare case of intussusception in an adult with acute myeloid leukemia

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World Journal of Gastroenterology 2015年第2期21卷 688-693页

作者： Man Fai Law Cheuk Kei Wong Chun Yin Pang Hay Nun Chan Ho Kei Lai Chung Yin Ha Celia Ng Yiu Ming Yeung sze Fai yip Department of Medicine Tuen Mun Hospital Department of Medicine and Therapeutics Prince of Wales Hospital Department of Radiology Kwong Wah Hospital Department of Pathology Tuen Mun Hospital

Intussusception is rarely reported in adult patients with acute leukemia. We report a case of intussusception in a 29-year-old woman with acute myeloid leukemia(AML). She developed right lower quadrant pain, fever, and vomiting on day 16 of induction *** examination showed tenderness and guarding at the right lower quadrant of the abdomen. Abdominal computed tomography(CT) showed distension of the cecum and ascending colon, which were filled with loops of small bowel, and herniation of the ileocecal valve into the cecum. We proceeded to laparotomy and revealed ileocecal intussusception with the ileocecal valve as the leading point. The terminal ileum was thickened and invaginated into the cecum, which showed gangrenous changes. Right hemicolectomy was performed and microscopic examination of the colonic tissue showed infiltration of leukemic cells. The patient recovered after the operation and was subsequently able to continue treatment for AML. This case demonstrates that the diagnosis of intussusception is difficult because the presenting symptoms can be non-specific, but abdominal CT can be informative for preoperative diagnosis. Resection of the involved bowel is recommended when malignancy is suspected or confirmed. Intussusception should be considered in any leukemia patients presenting with acute abdomen. A high index of clinical suspicion is important for early diagnosis.

关键词： Intussusception Acute leukemia Abdominal pain Colo

Dual ultra-wideband(UWB)radar-based sleep posture recognition system:Towards ubiquitous sleep monitoring

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Engineered Regeneration 2023年第1期4卷 36-43页

作者： Derek Ka-Hei Lai Li-Wen Zha Tommy Yau-Nam Leung Andy Yiu-Chau Tam Bryan Pak-Hei So Hyo-Jung Lim Daphne sze Ki Cheung Duo wai-Chi Wong James Chung-wai Cheung Department of Biomedical Engineering Faculty of EngineeringThe Hong Kong Polytechnic UniversityHong Kong 999077China Department of Bioengineering Imperial CollegeLondon SW72AZUnited Kingdom Research Institute of Smart Ageing The Hong Kong Polytechnic UniversityHong KongChina School of Nursing The Hong Kong Polytechnic UniversityHong KongChina

Sleep posture monitoring is an essential assessment for obstructive sleep apnea(OSA)*** objective of this study is to develop a machine learning-based sleep posture recognition system using a dual ultra-wideband radar *** collected radiofrequency data from two radars positioned over and at the side of the bed for 16 patients performing four sleep postures(supine,left and right lateral,and prone).We proposed and evaluated deep learning approaches that streamlined feature extraction and classification,and the traditional machine learning approaches that involved different combinations of feature extractors and *** results showed that the dual radar system performed better than either single *** statistical features with random forest classifier yielded the best accuracy(0.887),which could be further improved via an ablation study(0.938).Deep learning approach using transformer yielded accuracy of 0.713.

关键词： Obstructive sleep apnea Deep learning Sleep monitoring Feature extraction Ablation study

Helicobacter pylori associated gastric intestinal metaplasia:Treatment and surveillance

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World Journal of Gastroenterology 2016年第3期22卷 1311-1320页

作者： Kevin sze-Hang Liu Irene Oi-Ling Wong wai K Leung Department of Medicine Li Ka Shing Faculty of MedicineUniversity of Hong KongHong KongChina School of Public Health Li Ka Shing Faculty of MedicineUniversity of Hong KongHong KongChina

Gastric cancer(GC) is one of the leading causes of cancer related death in the world, particularly in East Asia. According to the Correa's cancer cascade, noncardia GC is usually developed through a series of mucosal changes from non-atrophic gastritis to atrophic gastritis(AG), intestinal metaplasia(IM), dysplasia and adenocarcinoma. Atrophic gastritis and IM are therefore generally considered to be pre-neoplastic gastric lesions. Helicobacter pylori(H. pylori) infection is an important initiating and promoting step of this gastric carcinogenesis cascade. Emerging long-term data showed that eradication of H. pylori reduced the risk of subsequent cancer development. It however remains confusing whether eradication of the bacterium in individuals with pre-neoplastic gastric lesions could regress these changes as well as in preventing cancer. Whilst H. pylori eradication could likely regress AG, the presence of IM may be a point of no return in this cascade. Hence, surveillance by endoscopy may be indicated in those with extensive IM or those with incomplete IM, particularly in populations with high GC risk. The optimal interval and the best tool of surveillance endoscopy remains to be determined in future studies.

关键词： Helicobacter pylori Gastric cancer Intestinalmetaplasia Treatment Surveillance

Depletion of the IKBKAP ortholog in zebrafish leads to hirschsprung disease-like phenotype

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World Journal of Gastroenterology 2015年第7期21卷 2040-2046页

作者： William wai-Chun Cheng Clara sze-Man Tang Hong-Sheng Gui Man-Ting So Vincent Chi-Hang Lui Paul Kwong-Hang Tam Maria-Mercè Garcia-Barcelo Department of Surgery Li Ka Shing Faculty of Medicine the University of Hong Kong Department of Psychiatry Li Ka Shing Faculty of Medicine the University of Hong Kong Center for Genomic Sciences of the Li Ka Shing Faculty of Medicine the University of Hong Kong Centre for Reproduction Development and Growth Li Ka Shing Faculty of Medicine the University of Hong Kong

AIM:To investigate the role of IKBKAP(inhibitor of kappa light polypeptide gene enhancer in B-cells,kinase complexassociated protein)in the development of enteric nervous system(ENS)and Hirschsprung disease(HSCR).METHODS:In this study,we injected a morpholino that blocked the translation of ikbkap protein to 1-cell stage zebrafish *** phenotype in the ENS was analysed by antibody staining of the pan-neuronal marker Hu C/D followed by enteric neuron *** mean numbers of enteric neurons were compared between the morphant and the *** also studied the expressions of ret and phox2bb,which are involved in ENS development,in the ikbkap morpholino injected embryos by quantitative reverse transcriptase polymerase chain reaction and compared them with the ***:We observed aganglionosis(χ2,P<0.01)and a reduced number of enteric neurons(38.8±9.9 vs50.2±17.3,P<0.05)in the zebrafish embryos injected with ikbkap translation-blocking morpholino(morphant)when compared with the control *** of the morpholino was confirmed by similar results obtained using a second non-overlapping morpholino that blocked the translation of *** further studied the morphant by analysing the expression levels of genes involved in ENS development such as ret,phox2bb and sox10,and found that phox2bb,the ortholog of human PHOX2B,was significantly down-regulated(0.51±0.15 vs 1.00±0,P<0.05).Although we also observed a reduction in theexpression of ret,the difference was not ***:Loss of IKBKAP contributed to HSCR as demonstrated by functional analysis in zebrafish embryos.

关键词： Hirschsprung disease Enteric nervous system IKBKAP