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Portal venous gas and thrombosis in a Chinese patient with fulminant Crohn’s colitis: A case report with literature review

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World Journal of Gastroenterology 2006年第34期12卷 5582-5586页

作者： Simon Siu-man Ng Raymond Ying-Chang Yiu Janet Fung-Yee Lee jimmy chak-man li Ka-Lau Leung Department of Surgery The Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong SAR China

Ever since its earliest reports, portal venous gas (PVG) has been associated with numerous intraabdominal catastrophes and has served as an indication for urgent surgical exploration. It is traditionally regarded to be an ominous finding of impending death, with highest mortality reported in patients with underlying bowel ischemia. Today, computed tomography has demonstrated a wider range of clinical conditions associated with PVG, some of which are ‘benign’ and do not necessarily require surgery, unless when there are signs of intraabdominal catastrophe or systemic toxicity. One of these ‘benign’ conditions is Crohn’s disease. The present report describes a 19-year-old Chinese boy with Crohn’s pancolitis who presented with septic shock associated with PVG and portal vein thrombosis, and was successfully managed surgically. To our knowledge, this is the fi rst report of PVG and portal vein thrombosis associated with Crohn’s disease in a Chinese patient. In addition, we have also reviewed the reports of another 18 Crohn’s patients with PVG previously described in the English literature. Specifi c predisposing factors for PVG were identified in 8 patients, including barium enema, colonoscopy, blunt abdominal trauma, and enterovenous f istula. The patients who developed PVG following barium enema and blunt trauma were all asymptomatic and no specifi c treatment was necessary. Eleven patients (58%) who presented with signs of intraabdominal catastrophe or systemic toxicity required either immediate or eventual surgery. The overall mortality rate among the 19 patients was only 11%. The present literature review has shown that the f inding of PVG associated with Crohn’ s disease does not always mandate surgical intervention. It is the clinical features and the related complications that ultimately determine the treatment approaches. The overall outcome of PVG associated with Crohn’s disease has been favourable.

关键词：静脉血栓形成大肠炎病理

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Telerobotic-assisted laparoscopic abdominoperineal resection for low rectal cancer: Report of the first case in Hong Kong and China with an updated literature review

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World Journal of Gastroenterology 2007年第17期13卷 2514-2518页

作者： Simon Siu-man Ng Janet Fung-Yee Lee Raymond Ying-Chang Yiu jimmy chak-man li Sophie Sok-Fei Hon Department of Surgery The Chinese University of Hong Kong Prince of Wales Hospital Shatin Hong Kong SAR China

Telerobotic surgery is the most advanced development in the field of minimally invasive surgery. The da Vinci surgical system, which is currently the most widely used telerobotic device, was approved by the Food and Drug Administration of the United States of America for clinical use in all abdominal operations in July 2000. The first da Vinci surgical system in China was installed in November 2005 at our institution. We herein report the first telerobotic-assisted laparoscopic abdominoperineal resection using the 3-arm da Vinci surgical system for low rectal cancer in Hong Kong and China, which was performed in August 2006. The operative time and blood loss were 240 min and 200 mL, respectively. There was no complication, and the patient was discharged on postoperative day five. An updated review of published literature on telerobotic-assisted colorectal surgery is included in this report, with special emphasis on its advantages and limitations.

关键词：低位直肠癌远程机器人辅助手术腹腔镜腹部手术切除香港

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A giant gas-filled abdominal mass in an elderly female:A case report

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World Journal of Gastroenterology 2011年第31期17卷 3659-3662页

作者： Hoi man Deon Chong Fung Yee Janet Lee Anthony Lo chak man jimmy li Department of Surgery Prince of Wales Hospital Department of Anatomical and Cellular Pathology Prince of Wales Hospital

We report an extremely rare case of gas-filled abdominal mass caused by an ovarian teratoma fistulating to the sigmoid colon The patient was an 85-year-old female,who presented with severe abdominal distension Urgent computed tomography scan showed a huge abdominal mass with air fluid level and fecal matter inside Communication between the mass and the sigmoid colon was suspected She underwent emergency laparotomy The mass was resected with the involved segment of colon Pathology confirmed squamous cell carcinoma arising from mature cystic teratoma of the ovary.

关键词：病例报告腹部女性气体老年填充鳞状细胞癌断层扫描

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Energy Spectra of a Magnetic Quantum Ring with an Off-Center Impurity

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Communications in Theoretical Physics 2006年第4期45卷 737-740页

作者： LEE chak-man li Jun-Qin RUAN Wen-Ying Richard LEE chak-Hong Department of Material Science and Engineering Shenzhen University Shenzhen 518060 China Department of Electrical and Computer Engineering University of Illinois at Urbana-Champaign Urbana IL61801 USA Department of Applied Physics South China University of Technology Guangzhou 510641 China

In this paper,we calculate the low-lying spectra of a single-electron magnetic quantum ring with an off-center Coulomb impurity,where the magnetic field is zero within the ring and constant *** impurity,eitheran acceptor or a donor,is located at a distance d as measured from the plane of the ring along the vertical z *** magnetic moments are found in order to get visible discontinuities at the points of the ground-state orbital angularmomentum L transitions induced by magnetic fields.

关键词：磁量子环 Meissner效应磁力矩光谱

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Using the theory of coevolution to predict protein-protein interactions in non-small cell lung cancer

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Chinese Journal of Cancer 2013年第2期32卷 91-98页

作者： Meng Zhang man-Him Chan Wen-Jian Tu li-Ran He chak-man Lee Miao He School of life Sciences Sun Yat-sen University Department of Architecture Cardiff University College of Software Technology South China Agricultural University BEE Xergy Consultant Ltd

Systems biology has become an effective approach for understanding the molecular mechanisms underlying the development of lung *** this study,sequences of 100 non-small cell lung cancer (NSCLC)-related proteins were downloaded from the National Center for Biotechnology Information (NCBI) *** Theory of Coevolution was then used to build a protein-protein interaction (PPI) network of *** the reverse thinking approach,we analyzed the NSCLC proteins one at a *** key proteins were identified and categorized into a special protein family F(K),which included Cyclin D1 (CCND1),E-cadherin (CDH1),Cyclin-dependent kinase inhibitor 2A (CDKN2A),chemokine (C-X-C motif) ligand 12 (CXCL12),epidermal growth factor (EGF),epidermal growth factor receptor (EGFR),TNF receptor superfamily,member 6(FAS),FK506 binding protein 12-rapamycin associated protein 1 (FRAP1),O-6-methylguanine-DNA methyltransferase (MGMT),parkinson protein 2,E3 ubiquitin protein ligase (PARK2),phosphatase and tensin homolog (PTEN),calcium channel voltage-dependent alpha 2/delta subunit 2 (CACNA2D2),tubulin beta class I (TUBB),SWI/SNF-related,matrix-associated,actin-dependent regulator of chromatin,subfamily a,member 2 (SMARCA2),and wingless-type MMTV integration site family,member 7A (WNT7A).Seven key nodes of the sub-network were identified,which included PARK2,WNT7A,SMARCA2,FRAP1,CDKN2A,CCND1,and *** PPI predictions of EGFR-EGF,PARK2-FAS,PTEN-FAS,and CACNA2D2-CDH1 were confirmed experimentally by retrieving the Biological General Repository for Interaction Datasets (BioGRID) and PubMed *** proposed that the 7 proteins could serve as potential diagnostic molecular markers for *** accordance with the developmental mode of lung cancer established by Sekine et al.,we assumed that the occurrence and development of lung cancer were linked not only to gene loss in the 3p region (WNT7A,3p25) and genetic mutations in the 9p region but also to similar events in the reg

关键词：蛋白质相互作用非小细胞肺癌理论预测协同进化表皮生长因子受体细胞周期蛋白D1 DNA甲基转移酶系统生物学

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MicroRNA-142-3p and microRNA-142-5p are downregulated in hepatocellular carcinoma and exhibit synergistic effects on cell motility

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Frontiers of Medicine 2015年第3期9卷 331-343页

作者： Felice Ho-Ching Tsang Sandy Leung-Kuen Au Lai Wei Dorothy Ngo-Yin Fan Joyce man-Fong Lee Carmen chak-Lui Wong Irene Oi-lin Ng Chun-Ming Wong State Key Laboratory for liver Research and Department of Pathology Li Ka Shing Faculty of Medicine The University of Hong Kong HongKong SAR China

MicroRNAs （miRNAs）, an important class of small non-coding RNAs, regulate gene expression at the post-transcriptional level, miRNAs are involved in a wide range of biological processes and implicated in different diseases, including cancers. In this study, miRNA profiling and qRT-PCR validation revealed that miR-142-3p and miR-142-5p were significantly downregulated in hepatocellular carcinoma （HCC） and their expression levels decreased as the disease progressed. The ectopic expression of miR-142 significantly reduced HCC cell migration and invasion. Overexpression of either miR-142-3p or miR-142-5p suppressed HCC cell migration, and overexpression of both synergistically inhibited cell migration, which indicated that miR-142-3p and miR-142-5p may cooperatively regulate cell movement, miR-142-3p and miR-142-5p, which are mature miRNAs derived from the 3＇- and 5＇-strands of the precursor miR-142, target distinct pools of genes because of their different seed sequences. Pathway enrichment analysis showed a strong association of the putative gene targets of miR-142-3p and miR-142-5p with several cell motility-associated pathways, including those regulating actin cytoskeleton, adherens junctions, and focal adhesion. Importantly, a number of the putative gene targets were also significantly upregulated in human HCC cells. Moreover, overexpression of miR-142 significantly abrogated stress fiber formation in HCC cells and led to cell shrinkage. This study shows that mature miR-142 pairs collaboratively regulate different components of distinct signaling cascades and therefore affects the motility of HCC cells.

关键词： hepatocellular carcinoma microRNA metastasis cytoskeletal reorganization

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Phenylketonuria in Hong Kong Chinese： a call for hyperphenylalaninemia newborn screening in the Special Administrative Region, China

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Chinese Medical Journal 2011年第16期124卷 2556-2558页

作者： Chloe Miu Mak Chun-hung Ko Ching-wan Lam Wai-ling Lau Wai-kwan Siu Sammy Pak-lam Chen Chun-yiu Law Chi-kong Lai chak-man Yu Albert Yan-wo Chan Kowloon West Cluster Laboratory Genetic Service ChemicalPathology Laboratory Department of Pathology Princess MargaretHospital Hong Kong China Department of Paediatrics and Adolescent Medicine CaritasMedical Centre Hong Kong China Department of Pathology Li Ka Shing Faculty of Medicine TheUniversity of Hong Kong Hong Kong China

Hyperphenylalaninemia is one of the commonest inborn errors of metabolism affecting approximately 1 in 15 000 live births. Among Chinese, BH4 deficiency leading to hyperphenylalaninemia is much commoner than in Caucasians. Exact diagnosis is important for the treatment and genetic counseling. In 2000, newborn screening for phenylketonuria is mandatory by law in China throughout the whole country. However, it is not yet included in the newborn screening program of the Hong Kong Special Administrative Region, China. Published data on hyperphenylalaninemia among Hong Kong Chinese are largely lacking. We report a 1-year-old Hong Kong Chinese girl with severe 6-pyruvoyl-tetrahydropterin synthase （PTPS） deficiency. The patient presented with infantile hypotonia and was misdiagnosed as cerebral palsy. She had very mild hyperphenylalaninemia （95 IJmol/L）, significantly high phenylalnine-to-tyrosine ratio （3.1）, and ele~,ated prolactin of 1109 m lU/L. Genetic analysis confirmed a homozygous known disease-causing mutation PTS NM_000317.1： c.259C〉T; NP_000308.1： p.P87S in the proband. In our local experience, while the estimated prevalence of hyperphenylalaninemia due to PTPS deficiency was reported to be 1 in 29 542 live births, not a single case of phenylalanine hydroxylase deficiency has been reported. Furthermore, there is a general lack of awareness of inherited metabolic diseases in the community as well as among the medical professionals. Very often, a low index of clinical suspicion will lead to delay in diagnosis, multiple unnecessary and costly investigations, prolonged morbidity and anxiety to the family affected. We strongly recommend that expanded newborn screening for hyperphenylalaninemia should be implemented for every baby born in the Hong Kong Special Administrative Region, China.

关键词： Hong Kong Chinese hyperphenylalaninemia newborn screening phenylketonuria 6-pyruvoyl-tetrahydropterin synthase deficiency

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A cross-sectional study on compliance with topical glaucoma medication and its associated socioeconomic burden for a Chinese population

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International Journal of Ophthalmology(English edition) 2017年第2期10卷 293-299页

作者： man-Hin Lui Jason Chun Ho Lam Yi Lee Kwong Tak Siu Wong Pak Long Cheung Sherri Shun Yan Lai Pak Lun Yuen Wai Yiu Lam Ho Yan Chan Yiu Fai Wong jimmy Shiu Ming Lai Kendrick Co Shih li Ka Shing Faculty of Medicine the University of Hong KongPokfulamHong KongChina Department of Ophthalmology Li Ka Shing Faculty of Medicinethe University of Hong KongPokfulamHongKongChina Department of Ophthalmology Queen Mary HospitalPokfulamHong KongChina

AIM： To estimate the overall drug compliance for local Chinese glaucoma patients on long-term topical ***： This was a retrospective cross-sectional ***-seven primary glaucoma patients from the subspecialty clinic of a publicly-funded tertiary care hospital in Hong Kong completed a questionnaire on compliance with topical glaucoma medication,attitude towards glaucoma and therapy and vision related quality of *** was defined as reporting missing more than or equal to 10% of the prescribed topical glaucoma medication during the 2wk immediately prior to the *** between noncompliance and demographics,attitude,disease and treatment status was *** was estimated with quality of life and direct medical cost involved with *** logistic regression on noncompliance was performed on selected ***： Compliance was calculated as 75%（95% CI： 64%-87%） among 57 subjects（mean age 69 y,female 51%）.No statistical significant relationship was established between noncompliance and any single factors or ***（P=0.048） and forgetfulness（P=0.064） were found to be marginally significant predictive factors on noncompliance in multivariable logistic *** might be related（P=0.130） to poorer self-rated vision-associated quality of *** societal cost of noncompliance was estimated to be over 2510 life-years and US$ 3.7 million ***： The compliance of Chinese glaucoma patients in Hong Kong is comparable to other parts in the world,and carries detrimental impacts on individual and societal *** and forgetfulness are two possible independent predictors for noncompliance.

关键词： glaucoma eye drop compliance quality of life

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2021皮肤红斑狼疮的诊断、治疗和长期管理指南

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中国合理用药探索 2022年第10期19卷 27-40页

作者： Qianjin Lu Hai Long Steven Chow Syarief Hidayat Retno Danarti Yulianto listiawan Danqi Deng Qing Guo Hong Fang Juan Tao Ming Zhao Leihong Xiang Nan Che Fen li Hongjun Zhao chak Sing Lau Fong Cheng Ip King man Ho Arnelfa C.Paliza Chan Vicheth Kiran Godse Soyun Cho Chew Swee Seow Yoshiki Miyachi Tran Hau Khang Rataporn Ungpakorn Hassan Galadari Rashmikant Shah Kehu Yang Youwen Zhou Carlo Selmi Amr HSawalha Xuan Zhang Yaolong Chen Chrang-Shi lin 姚文鑫不详首都医科大学附属北京世纪坛医院药学部北京100038

皮肤红斑狼疮(CLE)是一种炎症性自身免疫性疾病,其分型较多,包括急性、亚急性、慢性和间歇性CLE。其中,慢性CLE可以进一步分为红斑狼疮(LE)的几个亚型,如盘状LE、疣状LE、深在性LE、冻疮样LE和Blaschko线状LE等。为了给皮肤科医生和风... 详细信息

皮肤红斑狼疮(CLE)是一种炎症性自身免疫性疾病,其分型较多,包括急性、亚急性、慢性和间歇性CLE。其中,慢性CLE可以进一步分为红斑狼疮(LE)的几个亚型,如盘状LE、疣状LE、深在性LE、冻疮样LE和Blaschko线状LE等。为了给皮肤科医生和风湿科医生提供CLE的诊断、治疗和长期管理的实用指导建议,本证据和共识指南根据卫生保健实践指南的报告条目(国际RIGHT工作组)目录编制,并在国际实践指南注册平台注册。在亚洲皮肤科学会(ADA)、亚洲皮肤病性病学会(AADV)以及中华医学会皮肤性病学分会(CSD)红斑狼疮研究中心的共同努力下,来自亚洲、美洲、欧洲等16个国家或地区的25名皮肤科医生、7名风湿科医生、1名红斑狼疮领域专家和2名方法学家参与了本指南的制定。所有建议均取得了32名医生中至少80%的同意。作为共识,CLE的诊断主要基于临床和组织病理学表现的评估,并且通过对全身多系统损伤的评估,排除系统性红斑狼疮(SLE)。外用糖皮质激素和钙调磷酸酶抑制剂是局部CLE的一线治疗。对于泛发或严重的CLE皮损和/或局部耐药的病例,可以合并全身治疗,包括抗疟药和/或短期全身使用糖皮质激素。值得注意的是,抗疟药是所有类型CLE的一线全身治疗药物,同样可用于妊娠期患者和儿童。二线治疗用药包括沙利度胺、类维生素A类药物、氨苯砜和甲氨蝶呤,而霉酚酸酯是三线治疗用药。最后,脉冲染料激光或手术可作为四线治疗,用于局部以及发生在不可修饰部位的慢性、难治性CLE皮损。贝利尤单抗亦可作为四线治疗用药,用于活动性SLE患者的泛发性CLE皮损或糖皮质激素逐渐减量期间复发的急性CLE。对于疾病的管理,患者教育和长期随访是必要的。建议在每次随访时适当评估疾病活动度、皮肤和其他器官损伤、生活质量、合并症及可能发生的不良事件。

关键词：红斑狼疮共识循证妊娠期儿童脉冲染料激光

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