1.Neonatal cholestasis and biliary atresia: perspective from Malaysia
Journal of University of Malaya Medical Centre 2010;13(2):72-79
The liver is an important organ of the human body, playing a major role in the metabolism
and storage of nutrients, synthesis of protein and other nutrients, as well as detoxifying many
metabolic by-products. The response of the foetal and newborn liver to external insult and injury
is limited. This is because the ability of the closely interdependent structures of a developing
liver of expressing in the face of a variety of insults is limited as well. Thus most infants with
insults to the liver present as cholestatic jaundice with variable degree of pale stools, enlarged
liver and conjugated hyperbilirubinaemia. Biliary atresia, an idiopathic condition characterized by
progressive fibrosing obliteration of both intra- and extrahepatic bile ducts, is the most important
cause of neonatal cholestasis worldwide, including Malaysia. It is also the most important
indication for childhood liver transplantation the world over. Challenges facing infants with
biliary atresia include a delay in the diagnosis and late surgery, leading to a poor outcome. This
often results from a failure to recognise the potential serious nature of an infant with prolonged
cholestatic jaundice and pale stools among health care professionals. (JUMMEC 2010; 13(2): 72-79)
Biliary Atresia
2.The Significance of Tartrate Resistant Acid Phosphatase as a Marker of osteoclast
SH LEE ; DJ CHAE ; WS JANG ; SJ JEON ; JS CHANG
The Journal of the Korean Orthopaedic Association 1996;31(1):124-130
Tatrate resistant acid phosphatase (TRAP) has been widely used as histochemical marker to identify osteoclast in studies of bone metabolism. However, the value of TRAP as an osteoclast marker is still in discussion. Authors isolated and characterized the cells from synovium of 6 patients of sero-positive rheumatoid arthritis and 4 patients of osteoarthritis, and observed the activity of acid phosphatase (AP) and TRAP. The activity of TRAP was negative in cell cultures in early phase, but the activity of TRAP was increased with time, and at one week the activity of TRAP was as strong as that of AP. If the cultured tissue contained bone, there were observed TRAP positive mononuclear cells and giant cells even in early phase of cultures (1 day, 3 day), and the phenotype of these cells were same as that of osteoclasts and osteoclast precursors by immunocytochemistry. In conclusion, the activity of TRAP was positive in cultured macrophage. TRAP is not a specific marker for osteoclast, and its use for the identification of osteoclast seems meaningful only in the early stage of cell culture.
Acid Phosphatase
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Arthritis, Rheumatoid
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Cell Culture Techniques
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Giant Cells
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Humans
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Immunohistochemistry
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Macrophages
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Metabolism
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Osteoarthritis
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Osteoclasts
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Phenotype
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Synovial Membrane
3.Zika Virus: An Evolving Public Health Threat.
Chee Fu YUNG ; Chia Yin CHONG ; Kee Thai YEO ; Christina LIEW ; Lee Ching NG ; Natalie Wh TAN ; George Sh YEO ; Nancy Ws TEE ; Raymond Tp LIN ; Thiam Chye TAN ; Victor S RAJADURAI ; Jerry Ky CHAN ; Koh Cheng THOON
Annals of the Academy of Medicine, Singapore 2016;45(4):148-151
4.Non-alcoholic fatty liver disease increases risk of carotid atherosclerosis and ischemic stroke: An updated meta-analysis with 135,602 individuals
Ansel Shao Pin TANG ; Kai En CHAN ; Jingxuan QUEK ; Jieling XIAO ; Phoebe TAY ; Margaret TENG ; Keng Siang LEE ; Snow Yunni LIN ; May Zin MYINT ; Benjamin TAN ; Vijay K SHARMA ; Darren Jun Hao TAN ; Wen Hui LIM ; Apichat KAEWDECH ; Daniel HUANG ; Nicholas WS CHEW ; Mohammad Shadab SIDDIQUI ; Arun J SANYAL ; Mark MUTHIAH ; Cheng Han NG
Clinical and Molecular Hepatology 2022;28(3):483-496
Background/Aims:
Non-alcoholic fatty liver disease (NAFLD) is associated with the development of cardiovascular disease. While existing studies have examined cardiac remodeling in NAFLD, there has been less emphasis on the development of carotid atherosclerosis and stroke. We sought to conduct a meta-analysis to quantify the prevalence, risk factors, and degree of risk increment of carotid atherosclerosis and stroke in NAFLD.
Methods:
Embase and Medline were searched for articles relating to NAFLD, carotid atherosclerosis, and stroke. Proportional data was analysed using a generalized linear mixed model. Pairwise meta-analysis was conducted to obtain odds ratio or weighted mean difference for comparison between patients with and without NAFLD.
Results:
From pooled analysis of 30 studies involving 7,951 patients with NAFLD, 35.02% (95% confidence interval [CI], 27.36–43.53%) had carotid atherosclerosis with an odds ratio of 3.20 (95% CI, 2.37–4.32; P<0.0001). Pooled analysis of 25,839 patients with NAFLD found the prevalence of stroke to be 5.04% (95% CI, 2.74–9.09%) with an odds ratio of 1.88 (95% CI, 1.23–2.88; P=0.02) compared to non-NAFLD. The degree of steatosis assessed by ultrasonography in NAFLD was closely associated with risk of carotid atherosclerosis and stroke. Older age significantly increased the risk of developing carotid atherosclerosis, but not stroke in NAFLD.
Conclusions
This meta-analysis shows that a stepwise increment of steatosis of NAFLD can significantly increase the risk of carotid atherosclerosis and stroke development in NAFLD. Patients more than a third sufferred from carotid atherosclerosis and routine assessment of carotid atherosclerosis is quintessential in NAFLD.
5.Branchial Anomalies in Korea: A Survey by the Korean Association of Pediatric Surgeons
WH PARK ; SI KWON ; SY KIM ; SC KIM ; SK KIM ; WK KIM ; IK KIM ; JE KIM ; HH KIM ; KW PARK ; YS PARK ; JS PARK ; YT SONG ; WS AHN ; NK OH ; SM OH ; SY YOO ; NH LEE ; OS LEE ; MD LEE ; SC LEE ; SK LEE ; SI CHANG ; YS CHUN ; ES CHUNG ; SY CHUNG ; SE CHUNG ; PM CHUNG ; MH CHO ; KJ CHOI ; SO CHOI ; SH CHOI ; SJ HAN ; YS HUH ; C HONG ; EH WHANG
Journal of the Korean Association of Pediatric Surgeons 1996;2(2):119-128
The survey on branchial anomalies was conducted by Korean Association of Pediatric Surgeons. A total of 173 cases were reported, which were managed by 36 members and cooperators during the three years from January 1, 1993 through December 31, 1995. The following results were obtained by retrospective analysis of the 173 cases of branchial anomalies. The presenting symptoms were cervical mass in 101 cases, pit with or without discharge in 71, cervical abscess in 47 and respiratory difficulty in 3. The average age of the patients with cervical abscess was 52 months. Seventy(79%) of 89 patients with branchial anomalies and a cystic mass had their first clinical manifestations by 1 year of age, while 40(51%) of 78 patients with only a branchial cyst had their first clinical manifestation in first year of life. Radiologic studies were carried out in 77 patients(43%). The preferred diagnostic modalities were ultrasonography(47 patients), simple neck radiogram(l9) and CT scan(17). Preoperative diagnosis was correctly made in 156(91%) of 173 patients. Seventeen patients were incorrectly diagnosed as thyroglossal duct cyst in 5 patients, cystic hygroma in 4, dermoid cyst in 3, and lymphadenopathy in 3. There were no remarkable difference in sex and laterality of presentation but bilateral lesions were found in 9(5%) patients and unusual locations of the anomalies were the manubrium, left subclavicular area, median cervial area, preauricular and parotid area. There were 78(45%) patients with cyst, 52(30%) patients with sinus, 35(20%) patients with fistula and 8(5%) patient with skin tag. Embryological classification was possible in only 64(37%) patients. The 2nd branchial anomaly was present in 50 (78%), the 1st branchial anomaly in 10(18%), and the 3rd or 4th branchial anomaly in 4(6%). Histopathological study of the lining epithelium(N=134) is recorded that 45% were lined with squamous epithelium, 17% with respiratory epithelium, 6% with. squamous and respiratory epithelium, 14% with inflammatory change. Lymphoid tissue was common(62%) in the wall of the lesions. Twelve(7%) of 158 patients had postoperative complications including wound complication, recurrence and facial nerve palsy.
Abscess
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Branchioma
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Child
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Classification
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Dermoid Cyst
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Diagnosis
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Epithelium
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Facial Nerve
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Fistula
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Humans
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Korea
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Lymphangioma, Cystic
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Lymphatic Diseases
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Lymphoid Tissue
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Manubrium
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Neck
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Paralysis
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Postoperative Complications
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Recurrence
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Respiratory Mucosa
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Retrospective Studies
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Skin
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Surgeons
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Thyroglossal Cyst
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Wounds and Injuries