1.c-myc DNA amplification and DNA ploidy analysis in cervical cancer of uterus.
Soo Kyung PARK ; Sang Kyun HAN ; Jong Sub PARK ; Jing Woo KIM ; Ku Taek HAN ; Sung Eun HAMKOONG ; Seung Jo KIM ; Hun Young LEE
Korean Journal of Obstetrics and Gynecology 1993;36(1):75-88
No abstract available.
DNA*
;
Ploidies*
;
Uterine Cervical Neoplasms*
;
Uterus*
2.Intussusception and Jejunal Atresia Caused by an Ectopic Pancreas in a Newborn
Han-Sol KIM ; Sun-Young LEE ; Song-Hee HAN ; So-Hyun NAM ; Chae-Ku JO ; Myo-Jing KIM
Neonatal Medicine 2021;28(2):72-76
Ectopic pancreas is defined as an abnormally located pancreatic tissue not sufficiently connected with the normal pancreas, which rarely occurs in neonates. To our knowledge, only a few cases of ectopic pancreas have been reported in newborns in South Korea. We report a case of ectopic pancreas as the cause of intussusception and jejunal atresia in a newborn. This clinical association is extremely rare, and this is the first report in South Korea.
3.Intussusception and Jejunal Atresia Caused by an Ectopic Pancreas in a Newborn
Han-Sol KIM ; Sun-Young LEE ; Song-Hee HAN ; So-Hyun NAM ; Chae-Ku JO ; Myo-Jing KIM
Neonatal Medicine 2021;28(2):72-76
Ectopic pancreas is defined as an abnormally located pancreatic tissue not sufficiently connected with the normal pancreas, which rarely occurs in neonates. To our knowledge, only a few cases of ectopic pancreas have been reported in newborns in South Korea. We report a case of ectopic pancreas as the cause of intussusception and jejunal atresia in a newborn. This clinical association is extremely rare, and this is the first report in South Korea.
5.Urinary trypsin inhibitor attenuates lipopolysaccharide-induced neutrophil activation.
Seong Heon LEE ; Hwi Jin KIM ; Hui Jing HAN ; Mei LI ; Sang Hyun KWAK ; Sanghee PARK
Korean Journal of Anesthesiology 2012;63(6):540-546
BACKGROUND: Urinary trypsin inhibitor (UTI), which is speculated to have anti-inflammatory effects, is one of serine protease inhibitors found in human urine and blood. The present study was conducted to clarify the effect of urinary trypsin inhibitor (UTI) on human neutrophil activation and its intracellular signaling mechanism in vitro. METHODS: To assess the possible interactions between UTI and lipopolysaccharide (LPS) in neutrophil activation, neutrophils from human blood were incubated with varying concentrations of UTI (1, 10, 100, 1,000 and 10,000 U/ml) plus LPS (100 ng/ml) or LPS alone in 24-well plates (5 x 106 cells/well). We measured protein levels for interleukin (IL)-6 and tumor necrosis factor-alpha (TNF-alpha) using enzyme-linked immunosorbent assay (ELISA) kits after 4 hours of incubation period. To elucidate the intracellular signaling pathway, we also measured the levels of phosphorylation of p38, ERK1/2 and JNK via Western blot analysis. Moreover, the nuclear levels of nuclear factor-kappa B (NF-kappaB) were determined with electrophoretic mobility shift assays (EMSA). RESULTS: UTI decreased the expression of inflammatory cytokines, including TNF-alpha and IL-6, and activation of intracellular signaling pathways, such as JNK, but not P38, ERK1/2 and nuclear translocation of NF-kappaB. CONCLUSIONS: UTI can attenuate LPS-induced neutrophil responses and may partially contribute to the treatment of neutrophil-mediated inflammatory diseases.
Blotting, Western
;
Cytokines
;
Electrophoretic Mobility Shift Assay
;
Enzyme-Linked Immunosorbent Assay
;
Glycoproteins
;
Humans
;
Interleukin-6
;
Interleukins
;
Mitogen-Activated Protein Kinases
;
Neutrophil Activation
;
Neutrophils
;
Phosphorylation
;
Serine Proteinase Inhibitors
;
Trypsin
;
Tumor Necrosis Factor-alpha
6.Galectin-3 inhibits cardiac contractility via a tumor necrosis factor alpha-dependent mechanism in cirrhotic rats
Ki Tae YOON ; Hongqun LIU ; Jing ZHANG ; Sojung HAN ; Samuel S. LEE
Clinical and Molecular Hepatology 2022;28(2):232-241
Background/Aims:
Galectin-3 plays a key pathogenic role in cardiac hypertrophy and heart failure. The present study aimed to investigate the effects of galectin-3 on cardiomyopathy – related factors and cardiac contractility in a rat model of cirrhotic cardiomyopathy.
Methods:
Rats were divided into two sets, one for a functional study, the other for cardiac contractile-related protein evaluation. There were four groups in each set: sham operated and sham plus N-acetyllactosamine (N-Lac, a galectin-3 inhibitor; 5 mg/kg); bile duct ligated (BDL) and BDL plus N-Lac. Four weeks after surgery, ventricular level of galectin-3, collagen I and III ratio, tumor necrosis factor alpha (TNFα), and brain natriuretic peptide (BNP) were measured either by Western blots or immunohistochemistry or enzyme-linked immunosorbent assay. Blood pressure was measured by polygraph recorder. Cardiomyocyte contractility was measured by inverted microscopy.
Results:
Galectin-3 and collagen I/III ratio were significantly increased in cirrhotic hearts. TNFα and BNP were significantly increased in BDL serum and heart compared with sham controls. Galectin-3 inhibitor significantly decreased galectin-3, TNFα, and BNP in cirrhotic hearts but not in sham controls. N-Lac also significantly improved the blood pressure, and systolic and diastolic cardiomyocyte contractility in cirrhotic rats but had no effect on sham controls.
Conclusion
Increased galectin-3 in the cirrhotic heart significantly inhibited contractility via TNFα. Inhibition of galectin-3 decreased the cardiac content of TNFα and BNP and reversed the decreased blood pressure and depressed contractility in the cirrhotic heart. Galectin-3 appears to play a pathogenic role in cirrhotic cardiomyopathy.
7.Prospective audit of post-chemotherapy febrile neutropenia in patients with solid cancer and lymphoma in two Singaporean cancer centres.
Mabel WONG ; Jing JIN ; Min Han TAN ; Yee Mei LEE ; Ten Eng LEE ; Ying DING ; Hong Chan YONG ; Siew Eng LIM ; Louis Ya CHAI ; Noan Minh CHAU ; Li Yang HSU
Annals of the Academy of Medicine, Singapore 2012;41(7):287-293
INTRODUCTIONFebrile neutropenia (FN) is a significant cause of mortality and morbidity in oncology and haematology units worldwide. The overall mortality in hospital surveys in Singapore surveys on post-chemotherapy FN has ranged between 3.0% and 8.8%. However, recent evidence indicates that outpatient management of patients with low-risk FN is safe and cost-effective.
MATERIALS AND METHODSWe conducted a prospective audit on a cohort of adult patients with post-chemotherapy FN seen at 2 local public sector cancer centres over a 1-year period in order to define their epidemiological characteristics and outcomes, and also to assess the uptake of early discharge/outpatient management strategies for these patients.
RESULTSWe reviewed 306 FN episodes from 248 patients. Patient characteristics and outcomes were similar between both institutions. Eleven (3.7%) FN episodes were managed as outpatient and none developed complications. Overall 30-day mortality was 6.6%, while the median length of stay (LOS) was 7 days (IQR: 4 to 11 days). The only independent risk factor for mortality was severe sepsis (OR:13.19; 95% CI: 1.98 to 87.7; P = 0.008). Factors independently associated with a longer LOS were vancomycin prescription (coefficient: 0.25; 95% CI: 0.08 to 0.41; P = 0.003), longer duration of intravenous antibiotics (coefficient: 0.08; 95% CI: 0.06 to 0.10; P <0.001), and prior review by an infectious diseases physician (coefficient: 0.16; 95% CI: 0.01 to 0.31; P = 0.034).
CONCLUSIONThis audit demonstrated that mortality from FN in our 2 cancer centres is low and comparable to international institutions. It also demonstrates that outpatient management of FN is safe in selected patients, and can be further expanded for right-siting of resources.
Adult ; Anti-Bacterial Agents ; therapeutic use ; Antineoplastic Agents ; adverse effects ; Bacterial Infections ; epidemiology ; Cohort Studies ; Female ; Fever ; epidemiology ; etiology ; Humans ; Male ; Middle Aged ; Mycoses ; epidemiology ; Neoplasms ; complications ; drug therapy ; Neutropenia ; epidemiology ; etiology ; Prospective Studies ; Singapore ; epidemiology
8.Evaluating the Clinical Symptoms of Neonates with Suspected Dysphagia.
Kyeong Woo LEE ; Sang Beom KIM ; Jong Hwa LEE ; Tae Hyoung KIM ; Dong Wook HAN ; Myo Jing KIM
Journal of the Korean Academy of Rehabilitation Medicine 2011;35(2):265-271
OBJECTIVE: To evaluate the prevalence of dysphagia in neonates who showed abnormal findings on videofluoroscopic swallowing studies (VFSSs), and to compare the accuracy of the clinical evaluation with the VFSS results. METHOD: A clinical investigation of 142 neonates admitted to a neonatal intensive care unit was carried out to evaluate the presence of low O2 saturation (<80%), symptoms of cyanosis, coughing and/or vomiting, nasal regurgitation, drooling saliva, voice change and crying during feeding. VFSSs were performed on the neonates who had at least one of these clinical abnormalities. RESULTS: Of the 142 patients, 37 (26.1%) had at least one of the clinical symptoms of dysphagia. Twenty two of 37 (59.5%) showed abnormal findings on the VFSS. The patients exhibiting cyanosis and coughing during feeding had a higher incidence of aspiration (11 of 11, 100%) on the VFSSs than did the patients with other symptoms: cyanosis (3 of 13, 30.8%), cyanosis with vomiting (0 of 2, 0.0%), coughing without cyanosis (2 of 5, 40.0%), voice change (2 of 2, 100%) and nasal regurgitation (1 of 3, 33.3%). CONCLUSION: The prevalence of laryngeal penetration or subglottic aspiration among those neonates who were clinically suspected of dysphagia was 59.5%. Coughing with cyanosis during feeding was the best predictor of both these abnormalities.
Cough
;
Crying
;
Cyanosis
;
Deglutition
;
Deglutition Disorders
;
Humans
;
Incidence
;
Infant, Newborn
;
Intensive Care, Neonatal
;
Prevalence
;
Saliva
;
Sialorrhea
;
Voice
;
Vomiting
9.The Histologic Cut-off Point for Adjacent and Remote Non-neoplastic Liver Parenchyma of Hepatocellular Carcinoma in Chronic Hepatitis B Patients.
Hae Yoen JUNG ; Soo Hee KIM ; Jin JING ; Jae Moon GWAK ; Chul Ju HAN ; Ja June JANG ; Kyoung Bun LEE
Korean Journal of Pathology 2012;46(4):349-358
BACKGROUND: The molecular profile of peritumoral non-neoplastic liver parenchyma (PNLP) has recently been suggested as predictive factor of early and late recurrence of hepatocellular carcinoma (HCC). However, there is no definite cut-off point for tumor-free PNLP in terms of either histological or molecular changes. Therefore, our aim is to determine the numerical cut-off point for separating adjacent PNLP and remote PNLP in histopathologic perspective. METHODS: Peritumoral tissues from 20 resected HCC patients were sampled from 0 to 40 mm distance from the tumor border (divided into 5-mm columns). Histopathologic parameters such as necroinflammatory activity, fibrosis, bile ductular reaction, hepatic venulitis, peliosis, and steatosis were compared between each column. RESULTS: The morphologic changes just adjacent to the tumor were notably severe and faded with distance. The parenchyma within 10 mm of the tumor showed significantly severe inflammation, fibrosis, peliosis and hepatic venulitis compared with those from farther areas. The histopathologic changes of the parenchyma became stable beyond 20 mm. CONCLUSIONS: Results of this study revealed that the parenchyma within 10 mm distance from the tumor, or adjacent PNLP, has histopathologic changes that are directly affected by the tumor, and the parenchyma beyond 20 mm as the remote PNLP without tumor effect.
Bile
;
Carcinoma, Hepatocellular
;
Fibrosis
;
Hepatitis B, Chronic
;
Hepatitis, Chronic
;
Humans
;
Inflammation
;
Liver
;
Recurrence
10.Extensive Necrotizing Fasciitis after Fat Grafting for Bilateral Breast Augmentation: Recommended Approach and Management.
Chong Han PEK ; Jane LIM ; Hui Wen NG ; Han Jing LEE ; Wei Chen ONG ; Anthony Tun Lin FOO ; Chwee Ming LIM ; Mark THONG ; Sandeep Jacob SEBASTIN ; Thiam Chye LIM
Archives of Plastic Surgery 2015;42(3):365-367
No abstract available.
Breast*
;
Fasciitis, Necrotizing*
;
Transplants*