1.Dermatological disorders at the emergency department of a tertiary hospital in Singapore.
Eugene St TAN ; Mark By TANG ; Li Lee PENG
Annals of the Academy of Medicine, Singapore 2013;42(3):155-156
Adolescent
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Adult
;
Aged
;
Aged, 80 and over
;
Emergency Service, Hospital
;
Female
;
Humans
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Male
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Middle Aged
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Singapore
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Skin Diseases
;
diagnosis
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Tertiary Care Centers
;
Young Adult
2.The making of a good male infertility microsurgeon: learning experience at Weill Cornell Medical College of Cornell University.
Fu-Jun ZHAO ; Jing PENG ; Philip S LI ; Richard LEE ; Marc GOLDSTEIN
National Journal of Andrology 2014;20(7):595-604
Male infertility microsurgery represents the fastest growing sub-specialty in urology and clinical andrology over the past two decades. The importance of microsurgery for male infertility has risen as a part of the urologist's armamentarium in the medical and surgical management of male infertility. Despite the advances in male infertility microsurgery in China, the lack of standardized and well-organized training programs for male infertility microsurgery remains a serious problem affecting its development. In this article, Zhao and Peng have shared their experience with the learning curve of male infertility microsurgery at the Center for Male Reproductive Medicine and Microsurgery, Weill Medical College of Cornell University, which centers on how to pay attention to the details and basic principles of microsurgery. Male infertility microsurgery is physically, technically and mentally challenging, and must be first learned in the laboratory. Clinical success depends heavily upon appropriate training in a microsurgical laboratory. Good training can significantly reduce operation time and surgical errors as well as improve the quality of outcomes.
Andrology
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education
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Humans
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Infertility, Male
;
surgery
;
Male
;
Microsurgery
;
education
3.Evaluating a weekly face-to-face informal discussion forum for final year medical students
Samuel Easaw ; Toh Peng Yeow ; Li Ching Lee ; Wai Sun Choo ; Tow Shung Tan ; Amir Sharifuddin Mohd Khir ; Li Cher Loh
International e-Journal of Science, Medicine and Education 2012;6(1):36-37
Realising possible unmet needs of final year
medical students we initiated a weekly informal face-toface
discussion forum between them and the teaching
faculty of the department of medicine. Various academic
and non-academic topics, as dictated by the students,
were discussed in 19 weekly sessions. Evaluation by the
students was subsequently done by means of an on-line
questionnaire after the final examinations. The aim of
this study was to evaluate this forum, undertaken for the
first time in our institution, by assessing student feedback. We conclude that although the number of attendees and responders were small, feedback was generally positive. This type of forum can be improved upon and serve as another portal for benefitting students.
4.Impact of Chronic Kidney Disease on Long-Term Outcome in Coronary Bypass Candidates Treated with Percutaneous Coronary Intervention.
Jian Rong PENG ; Chi Jen CHANG ; Chun Li WANG ; Ying Chang TUNG ; Hsin Fu LEE
Korean Circulation Journal 2017;47(1):50-55
BACKGROUND AND OBJECTIVES: The aim of this study was to identify clinical, lesional, and procedural predictors for adverse outcomes of coronary angioplasty and stenting in coronary bypass candidates. SUBJECTS AND METHODS: This cohort study included 107 consecutive candidates for coronary artery bypass surgery who underwent percutaneous coronary intervention with multiple coronary stents between Jan 2004 and Dec 2011. The study endpoint was major adverse cardiovascular events (MACEs) including all-cause mortality, nonfatal myocardial infarction, repeat revascularization, and stent thrombosis. Follow up was from the date of index percutaneous coronary intervention to the date of the first MACE, date of death, or December 31, 2015, whichever came first. RESULTS: In this study (age 62.3±11.2 years, 86% male), 38 patients (36%) had MACE. Among baseline, angiographic, and procedural parameters, there were significant differences in lower left ventricular ejection fraction (LVEF) and worse renal function. In a Cox regression model, LVEF and chronic kidney disease (CKD) were significant predictors for MACE. After a multivariate adjustment, CKD remained a significant predictor of MACEs (hazard ratio: 2.97, 95% confidence interval: 1.50-5.90). CONCLUSIONS: For coronary bypass candidates who were treated with coronary angioplasty and stenting, CKD seems to be the strongest predictor for adverse outcomes compared with other traditional factors.
Angioplasty
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Cohort Studies
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Coronary Artery Bypass
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Coronary Artery Disease
;
Follow-Up Studies
;
Humans
;
Mortality
;
Myocardial Infarction
;
Percutaneous Coronary Intervention*
;
Renal Insufficiency, Chronic*
;
Stents
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Stroke Volume
;
Thrombosis
6.Chemical Constituents from Leaves of Acanthopanax henryi (II).
Zhi LI ; Xiao Jun LI ; Ok Kyoung KWON ; Xiang WANG ; Qin Peng ZOU ; Xiang Qian LIU ; Hyeong kyu LEE
Natural Product Sciences 2015;21(3):196-204
Nineteen compounds, including one organic acid (1), one anthraquinone (2), one amide (3), and sixteen triterpenoid saponins (4 - 19) were isolated from the leaves of Acanthopanax henryi (Oliv.) Harms (Araliaceae). Their structures were determined on the basis of physicochemical properties and spectral analyses (HR-MS and NMR). Among them, compounds 2, 3, 7, 12 and 19 were new within Araliaceae. Compounds 4, 5, 9 - 11, 13, 14, 16 and 18 were reported for the first time from the Acanthopanax genus. Except for compounds 4 and 9, other compounds were isolated from A. henryi (Oliv.) Harms for the first time. The rare anthraquinone, compound 2, significantly decreased the production of NO and the levels of other inflammatory factors, such as TNF-alpha and IL-6, in lipopolysaccharide (LPS)-stimulated macrophages in a dose-dependent manner. This is the first time to report anti-inflammatory effect of this compound.
Eleutherococcus*
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Araliaceae
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Interleukin-6
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Macrophages
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Nitric Oxide
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Saponins
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Tumor Necrosis Factor-alpha
7.Health Care Utilization and Expenditures of Patients with Diabetes Comorbid with Depression Disorder: A National Population-Based Cohort Study.
Chun Jen HUANG ; Hui Min HSIEH ; Herng Chia CHIU ; Peng Wei WANG ; Mei Hsuan LEE ; Chih Yi LI ; Ching Hua LIN
Psychiatry Investigation 2017;14(6):770-778
OBJECTIVE: The study investigated to compare health care utilization and expenditures between diabetic patients with and without depression in Taiwan. METHODS: Health care utilization and expenditure among diabetic patients with and without depression disorder during 2000 and 2004 were examined using Taiwan's population-based National Health Insurance claims database. Health care utilization included outpatient visits and the use of inpatient services, and health expenditures were outpatient, inpatient, and total medical expenditures. Moreover, general estimation equation models were used for analyzing the factors associated with outpatient visits and expenditures. Multiple logistic regression analysis was applied for identifying the factors associated with hospitalization. RESULTS: The average annual outpatient visits and annual total medical expenditures in the study period were 44.23–52.20; NT$87,496–133,077 and 30.75–32.92; NT$64,411–80,955 for diabetic patients with and without depression. After adjustment for covariates, our results revealed that gender and complication were associated with out-patient visits. Moreover, the time factor was associated with the total medical expenditure, and residential urbanization and complication factors were associated with hospitalization. CONCLUSION: Health care utilization and expenditures for diabetic patients with depression were significantly higher than those without depression. Sex, complications, time, and urbanization are the factors associated with health care utilization and expenditures.
Cohort Studies*
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Delivery of Health Care*
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Depression*
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Health Expenditures*
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Hospitalization
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Humans
;
Inpatients
;
Logistic Models
;
National Health Programs
;
Outpatients
;
Patient Acceptance of Health Care*
;
Taiwan
;
Time Factors
;
Urbanization
8.Penetrability of interleukin-1beta and its effect on the concentration of tumor necrosis factor-alpha and interleukin-6 in the aqueous humor of rabbits treated with interleukin-1beta.
Xiao-yan PENG ; Feng-hua CHEN ; Ning-li WANG ; Jian-min MA ; Ping-yu LEE ; Ke-gao LIU ; Steven M PODOS
Chinese Medical Journal 2009;122(18):2165-2168
BACKGROUNDInterleukin (IL)-1beta may effectively decrease introcular pressure (IOP) when administered by subconjunctival injection in normal rabbit. However, IL-1beta is a large molecular agent and an inflammation factor. The aim of this study was to evaluate the penetrability of IL-1beta, and the concentrations of both tumor necrosis factor (TNF)-alpha and IL-6 in the aqueous humor of normal rabbits treated with IL-1beta.
METHODSA total of 170 rabbits were used in the study and were assigned to several different treatment groups as follows: 125 of the rabbits were assigned to two groups. In one group, 33 rabbits were injected subconjunctivally with IL-1beta and 39 were injected with saline alone. In the other group, 27 rabbits were given eye drops containing IL-1beta (400 ng/ml) and 26 were given saline alone. Aqueous humor (AH) was drawn and the concentration of IL-1beta within the fluid measured. The IOP was measured in another six rabbits after administration of eye drops containing IL-1beta (400 ng/ml). A further 20 rabbits were assigned to 3 groups as follows: eight untreated normal controls; six injected subconjunctivally with IL-1beta; and six injected subconjunctivally with saline alone. AH was drawn and the concentration of TNF-alpha in the fluid was measured. Another 19 rabbits were assigned to 3 groups as follows: seven untreated normal controls; and six injected subconjunctivally with IL-1beta; and six injected subconjunctivally with saline alone. AH was drawn and the concentration of IL-6 in the fluid measured. Measurement of cytokine concentration was by radio-immunoassay in all cases.
RESULTSThe IL-1beta concentration in the AH was higher in those animals in which it had been administered subconjunctivally (P < 0.01). The IL-1beta concentration in the AH of the animals given eye drops was almost the same as that in the controls (P > 0.05). The administration of IL-1beta in the form of eye drops had little effect upon IOP reduction. Lower TNF-alpha concentrations were seen in the AH after the subconjunctival administration of IL-1beta, but the concentration of IL-6 was the same as in the normal controls.
CONCLUSIONSIL-1beta shows good corneal penetrability after subconjunctival injection into normal rabbit eyes. The IOP reduction induced by IL-1beta is unlikely be associated with an inflammatory response.
Animals ; Aqueous Humor ; drug effects ; metabolism ; Interleukin-1beta ; pharmacology ; Interleukin-6 ; metabolism ; Rabbits ; Tumor Necrosis Factor-alpha ; metabolism
9.Certification of poliomyelitis eradication in Singapore and the challenges ahead.
Hwee Ching LEE ; Joanne TAY ; Cynthia Y H KWOK ; Moi Kim WEE ; Li Wei ANG ; Yuske KITA ; Jeffery L CUTTER ; Kwai Peng CHAN ; Suok Kai CHEW ; Kee Tai GOH
Annals of the Academy of Medicine, Singapore 2012;41(11):518-528
INTRODUCTIONThis study reviewed the epidemiological trends of poliomyelitis from 1946 to 2010, and the impact of the national immunisation programme in raising the population herd immunity against poliovirus. We also traced the efforts Singapore has made to achieve certification of poliomyelitis eradication by the World Health Organisation.
MATERIALS AND METHODSEpidemiological data on all reported cases of poliomyelitis were obtained from the Communicable Diseases Division of the Ministry of Health as well as historical records. Coverage of the childhood immunisation programme against poliomyelitis was based on the immunisation data maintained by the National Immunisation Registry, Health Promotion Board. To assess the herd immunity of the population against poliovirus, 6 serological surveys were conducted in 1962, 1978, 1982 to 1984, 1989, 1993 and from 2008 to 2010.
RESULTSSingapore was among the fi rst countries in the world to introduce live oral poliovirus vaccine (OPV) on a mass scale in 1958. With the comprehensive coverage of the national childhood immunisation programme, the incidence of paralytic poliomyelitis declined from 74 cases in 1963 to 5 cases from 1971 to 1973. The immunisation coverage for infants, preschool and primary school children has been maintained at 92% to 97% over the past decade. No indigenous poliomyelitis case had been reported since 1978 and all cases reported subsequently were imported.
CONCLUSIONSingapore was certified poliomyelitis free along with the rest of the Western Pacific Region in 2000 after fulfilling all criteria for poliomyelitis eradication, including the establishment of a robust acute flaccid paralysis surveillance system. However, post-certification challenges remain, with the risk of wild poliovirus importation. Furthermore, it is timely to consider the replacement of OPV with the inactivated poliovirus vaccine in Singapore's national immunisation programme given the risk of vaccine-associated paralytic poliomyelitis and circulating vaccine-derived polioviruses.
Adolescent ; Certification ; Child ; Child, Preschool ; Disease Eradication ; organization & administration ; Female ; Humans ; Infant ; Male ; Poliomyelitis ; epidemiology ; prevention & control ; virology ; Poliovirus ; immunology ; Singapore ; epidemiology
10.Viva-Asia Blood and Marrow Transplantation Groups - A Survey of Consortium Activity over a 12-year Period (2000 to 2011).
Ah Moy TAN ; Christina HA ; Chun Fu LI ; Godfrey Cf CHAN ; Vincent LEE ; Poh Lin TAN ; Suradej HONGENG ; Kleebsabai SANPAKIT ; Anselm C LEE ; Hai Peng LIN ; Maria Luz Uy El ROSARIO ; Jing CHEN
Annals of the Academy of Medicine, Singapore 2016;45(3):106-109
Anemia, Aplastic
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therapy
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Bone Marrow Transplantation
;
statistics & numerical data
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China
;
Cooperative Behavior
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Family
;
Hematopoietic Stem Cell Transplantation
;
statistics & numerical data
;
Hemoglobinopathies
;
therapy
;
Hong Kong
;
Humans
;
Immunologic Deficiency Syndromes
;
therapy
;
Leukemia
;
therapy
;
Lymphoma
;
therapy
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Malaysia
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Myelodysplastic Syndromes
;
therapy
;
Peripheral Blood Stem Cell Transplantation
;
statistics & numerical data
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Philippines
;
Singapore
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Thailand
;
Tissue Donors
;
statistics & numerical data
;
Transplantation, Autologous
;
statistics & numerical data
;
Transplantation, Homologous
;
statistics & numerical data