2.Missed Appointments at a Diabetes Centre: Not a Small Problem.
Serena Km LOW ; Jonathon Kc KHOO ; Subramaniam TAVINTHARAN ; Su Chi LIM ; Chee Fang SUM
Annals of the Academy of Medicine, Singapore 2016;45(1):1-5
Adult
;
Age Factors
;
Ambulatory Care
;
Appointments and Schedules
;
Asian Continental Ancestry Group
;
China
;
Cohort Studies
;
Diabetes Mellitus
;
therapy
;
Ethnic Groups
;
statistics & numerical data
;
European Continental Ancestry Group
;
Female
;
Humans
;
India
;
Logistic Models
;
Malaysia
;
Male
;
Middle Aged
;
Multivariate Analysis
;
No-Show Patients
;
statistics & numerical data
;
Outpatient Clinics, Hospital
;
ROC Curve
;
Referral and Consultation
;
Reminder Systems
;
Retrospective Studies
;
Seasons
;
Sex Factors
;
Singapore
;
Text Messaging
3.Study on Therapeutic Effect of Pentoxifylline on Developmet of Multiple Organ Dysfuction Caused by Endotoxin in Rat.
Gyum Cheol LEE ; Sung Soo JEONG ; Chung Kee KIM ; Dae Hong SU ; Hong Seb LIM ; Chi Dae KIM ; Ki Whan HONG
Korean Journal of Medicine 1998;54(5):587-597
OBJECTIVES: Septic shock is characterized by the circulatory failure including vasodilation, hyporeactivity to vasoconstrictor agents and organ ischemia in association with multiple organ failure and increased platelet aggregation and blood coagulation. In the present study, we investigated the preventive effects of N-nitro-L-arginine methyl ester (L-NAME, 30mg/kg, i.p.), a non-selective nitric oxide synthase (NOS) inhibitor, S-methylisothiourea sulfate (SMT, 5mg/kg, i.p.) and pentoxifylline (PTX,10mg/kg, i.p.) on the multiple organ dysfunction in a rat model of circulatory shock induced by bacterial endotoxin (E. coli lipopolysaccharide: LPS) and discussed the mechanism underlying the development of multiple organ failure. METHODS: The effect of each other N-nitro-L-arginine methyl ester(L-NAME, 30 mg/kg, i.p.), a non-selective nitric oxide synthase(NOS) inhibitor, S-methyli-sothiourea sulfate(SMT, 5mg/kg, i.p.) and pentoxifylline (PTX, 10mg/kg, i.p.) were comparatively evaluated following inducing circulatory shock by means of infusion of bacterial endotoxin to the rat model. RESULTS: 1) The systemic mean arterial blood pressure decreased by 48.7mmHg and vascular hyporeactivity to noradrenaline injection(1 g/kg, i.v.) upon intravenous administration of LPS. 2) Endotoxemia for 6hours resulted in little change in the numbers of white blood cells and neutrophils but a significant reduction in the numbers of platelets. The variables were not affected by the inhibitors. 3) Endotoxemia for 6hours caused a significant increase in serum nitric oxide level (P<0.01) which was inhibited by SMT, but not by L-NAME and PTX. 4) Upon injection of LPS, serum creatinine(0.65+/-0.08mg/dl) and urea(28.7+/-5.9mg/dl) were significantly elevated to 0.92+/-0.12 (P<0.05) and 54.3+/-2.1mg/dl (P< 0.01). These elevated levels were significantly attenuated by PTX but not by L-NAME and SMT. 5) Endotoxemia for 6 hours resulted in a significant increases in serum ALT(988.8+/-28.2 IU/L, P<0.01) and AST levels(1470.5+/-396.5 IU/L, P<0.01) from basal levels of ALT(67.8+/- 11.7IU/L) and AST(170.3+/-14.8IU/L). These increased activities were significantly attenuated by PTX, but not by L-NAME and SMT. The level of LDH(1279.8+/-156.2IU/L) was significantly increased by LPS treatment to 2932.0+/-519.9IU/L (P<0.05), which was inhibited by PTX. 6) Upon LPS treatment, the myeloperoxidase activity in the lung homogenate was significantly increased by LPS treatment (P<0.05), whereas that in the liver showed less change. The increased activity was reduced by PTX (P<0.05), but not by L-NAME and SMT. 7) The level of serum malondialdehyde, an index of lipid peroxidation by oxygen free radicals, was little influenced by LPS. CONCLUSION: Based on these results, it is summarized that PTX characteristically inhibited the development of multiple ogran dysfunction in a murine model of endotoxemia. Thus, it is concluded that the formation of TNF and increased activity of neutrophils may importantly contribute to the development of LPS-induced endotoxemia.
Administration, Intravenous
;
Animals
;
Arterial Pressure
;
Blood Coagulation
;
Endotoxemia
;
Free Radicals
;
Ischemia
;
Leukocytes
;
Lipid Peroxidation
;
Liver
;
Lung
;
Malondialdehyde
;
Models, Animal
;
Multiple Organ Failure
;
Neutrophils
;
NG-Nitroarginine Methyl Ester
;
Nitric Oxide
;
Nitric Oxide Synthase
;
Norepinephrine
;
Oxygen
;
Pentoxifylline*
;
Peroxidase
;
Platelet Aggregation
;
Rats*
;
Shock
;
Shock, Septic
;
Vasoconstrictor Agents
;
Vasodilation
4.Aneurysamal bone cyst: report of a case
Seok Kyun LIM ; Hwan Ho YEO ; Young Kyun KIM ; Su Gwan KIM ; Jae Hyu CHI
Journal of the Korean Association of Maxillofacial Plastic and Reconstructive Surgeons 1998;20(3):237-240
Aneurysm
;
Bone Cysts
;
Curettage
;
Cytochrome P-450 CYP1A1
;
Female
;
Humans
;
Joints
;
Mandible
;
Maxilla
;
Middle Aged
;
Tooth
;
Transplants
5.Using Genotyping to Identify an A1B(weak) Blood Group.
Chi Hyun CHO ; Byong Joon YOO ; Seung Gyu YUN ; Gye Ryung CHOI ; Jae Yeoul CHOI ; Jang Su KIM ; Chae Seung LIM ; Young Kee KIM ; Kap No LEE
Korean Journal of Blood Transfusion 2010;21(2):158-164
Since an exact ABO blood type match is essential for transfusion therapy, any ABO discrepancies should be resolved prior to the issuing of blood. The authors confirmed the ABO blood group of a 50-year-old male using genotyping. On a routine blood group test, the cell type was A+; however, anti-B was undetected in his serum. To determine the cause of this ABO discrepancy, an adsorption elution test and saliva test were performed. The presence of a weak B substance was suspected despite no evidence of the B antigen on red blood cells. Polymerase-chain-reaction restriction-fragment-length-polymorphism (PCR-RFLP) and sequencing analysis of exons 6 and 7 demonstrated that his blood type was A1Bweak (the A allele tested as the A105 subtype, while the B allele was most similar to the B302 subtype). Again, using genotyping, we subsequently confirmed the A1Bweak blood type in a leukemic patient who was in complete remission.
Adsorption
;
Alleles
;
Erythrocytes
;
Exons
;
Humans
;
Leukemia
;
Male
;
Middle Aged
;
Saliva
6.Apoptosis of T Lymphocytes Isolated from Peripheral Blood of Patients with Acute Exacerbation of Chronic Obstructive Pulmonary Disease.
Sung Chul LIM ; Jin Yung JU ; Su Young CHI ; Hee Jung BAN ; Yong Soo KWON ; In Jae OH ; Kyu Sik KIM ; Yu Il KIM ; Young Chul KIM
Yonsei Medical Journal 2011;52(4):581-587
PURPOSE: Chronic obstructive pulmonary disease (COPD) is characterized by chronic inflammation of the airways and progressive destruction of lung parenchyma. Apoptosis is critical for the maintenance of normal tissue homeostasis and is in equilibrium with proliferation and differentiation. This study was undertaken to investigate relationship between apoptosis of peripheral blood lymphocytes during exacerbation of COPD and inflammatory response that characterizes this condition. MATERIALS AND METHODS: Seventeen patients with COPD exacerbation, 21 stable COPD, and 12 control subjects were included. T lymphocytes were isolated from peripheral blood using MACS. Apoptosis of T lymphocytes was assessed with FACS using annexin V and 7-aminoactinomycin. Serum levels of interleukin (IL)-6, IL-8 and tumor necrosis factor (TNF)-alpha were determined by an immunoassay technique. RESULTS: There was significantly increased percentage of apoptotic lymphocytes, CD 4+, and CD 8+ T cells in the peripheral blood of patients with exacerbation of COPD compared with stable COPD. Serum levels of IL-6, IL-8, and TNF-alpha were significantly increased in patients with exacerbation of COPD compared with stable COPD. Only TNF-alpha presented a positive correlation with apoptotic lymphocytes in patients with exacerbation of COPD. CONCLUSION: Increased apoptotic lymphocytes may be associated with upregulation of TNF-alpha in the peripheral blood of patients with acute exacerbation of COPD.
*Apoptosis
;
CD4-Positive T-Lymphocytes/pathology
;
CD8-Positive T-Lymphocytes/pathology
;
Flow Cytometry
;
Humans
;
Interleukin-6/blood
;
Interleukin-8/blood
;
Pulmonary Disease, Chronic Obstructive/blood/*pathology
;
T-Lymphocytes/*pathology
;
Tumor Necrosis Factor-alpha/blood
7.Induction of growth inhibition and apoptosis in human endometrial cancer cells by histone deacetylase inhibitors.
Su Yeon LIM ; June Kuk CHOI ; So Jin SHIN ; Sang Hoon KWON ; Chi Heum CHO ; Soon Do CHA ; Dong Kum SONG
Korean Journal of Obstetrics and Gynecology 2009;52(9):911-919
OBJECTIVE: Endometrial cancer is the most common malignant tumor of the female genital tract. Its incidence has increased in recent years, making up 13% of female genital cancers. Nevertheless, the search for agents effective in the treatment of either advanced or recurrent endometrial cancer has been disappointing. Histone deacetylase inhibitors (HDACIs) were recently found to be well-tolerated in patients with hematologic and solid malignancies. HDACIs have been shown to inhibit cancer cell proliferation, stimulate apoptosis, and induce cell cycle arrest. Our purpose was to investigate the antiproliferative effects of the HDACIs (sodium butyrate and HDAC-I1) against endometrial cancer cell line (Hec 1A) and normal endometrial cell line (T-HESCs). METHODS: MTS reduction assay was carried out to determine the cell viability. Cell cycle analysis and DNA fragmentation assay was done by fluorescent activated cell sorter analysis. The expression of cell cycle-regulatory and apoptosis-related proteins were evaluated by Western blot. Caspase 3 and 7 activity were measured by immuno-flouorescent staining. RESULTS: Each sodium butyrate and HDAC-I1 induced growth inhibition in a dose and time dependent manner in endometrial cancer cells but did not induce growth inhibition in normal endometrial cells. Treatment with each drugs in endometrial cancer cells increased the percentage of cells in subG1 phase. The expression of p53, p21, p27, FAS, and FAS legand were increased and it was associated with increased p21 and p27 expression in a p53-dependent manner. Activation of caspase-3, 7, 8, 9 and down-regulation of Bcl-2, up-regulation of Bax, with concomitant increase in PARP cleavage, were observed. CONCLUSION: These results demonstrate that sodium butyrate induced growth inhibition and apoptosis in human endometrial cancer cells rising their possibility applicable against human endometrial cancers.
Apoptosis
;
Blotting, Western
;
Butyrates
;
Caspase 3
;
Cell Cycle
;
Cell Cycle Checkpoints
;
Cell Line
;
Cell Proliferation
;
Cell Survival
;
DNA Fragmentation
;
Down-Regulation
;
Endometrial Neoplasms
;
Female
;
Histone Deacetylase Inhibitors
;
Histone Deacetylases
;
Histones
;
Humans
;
Incidence
;
Proteins
;
Sodium
;
Up-Regulation
8.Comparison of Amisulpride and Risperidone in the Treatment of Psychosis in Patients with Dementia of the Alzheimer's Type.
Hyun Kook LIM ; Su Jin KIM ; Chi Un PAE ; Chul LEE ; Chang Uk LEE
Journal of Korean Geriatric Psychiatry 2007;11(1):35-39
This study compared the effectiveness and tolerability of amisulpride and risperidone in patients with psychosis associated with dementia of the Alzheimer's type (DAT). This 8-week open label study randomized 72 patients with DAT associated psychosis either to amisulpride (n=36) and risperidone (n=36). The effectiveness of the treatments was assessed with the Korean version of Neuropsychiatry Inventory (K-NPI) psychosis subscale and total K-NPI and the Clinical Global Impression-Severity of Illness (CGI-S) scale. The Simpson-Angus Rating Scale, the Barnes Akathisia Rating Scale and the Abnormal Involuntary Movement Scale were used for the assessment of side effects. The K-NPI psychosis subscale, total K-NPI and CGI-S scores were significantly decreased over time in both treatment groups without any significant group difference and time by the group interaction effect. There were no serious adverse events in both groups. This study showed that either amisulpride or risperidone would be effective and tolerable for treating psychotic symptom associated with DAT. Adequately powered studies with a head-to-head comparison design will be mandatory to draw any definite conclusion.
Dementia*
;
Dyskinesias
;
Humans
;
Neuropsychiatry
;
Psychomotor Agitation
;
Psychotic Disorders*
;
Risperidone*
9.A Case of Hemophagocytic Lymphohistiocytosis with Clonal Karyotype Abnormalities.
Gae Ryung CHOI ; Ha Nui KIM ; Chi Hyun CHO ; Byoung Joon YOO ; Myung Han KIM ; Jang Su KIM ; Chae Seung LIM ; Kap No LEE
Laboratory Medicine Online 2011;1(2):110-114
There have been a few reports of hemophagocytic lymphohistiocytosis (HLH) with chromosomal abnormalities. Clonal chromosomal abnormalities in HLH patients are usually found in association with hematologic malignancies and rarely with epstein-barr virus (EBV) infection. Here, we report a fatal case of HLH with clonal karyotype abnormalities. A 75-yr-old man was admitted with persistent anorexia and high fever. Laboratory data revealed pancytopenia, hypofibrinogenemia, hyperferritinemia, prolonged prothrombin time and activated partial thromboplastin time, and marked elevated level of serum transaminases. In real time-PCR using whole blood, EBV DNA was not detected but cytomegalovirus (CMV) DNA was detected. The bone marrow aspiration smear showed hyperplasia of mature histiocytes with prominent hemophagocytosis. In chromosomal analysis of bone marrow aspirates, complex chromosomal abnormalities were found. In spite of steroid pulse therapy and antibiotic treatment, he died of disseminated intravascular coagulopathy.
Anorexia
;
Bone Marrow
;
Chromosome Aberrations
;
Cytomegalovirus
;
DNA
;
Fever
;
Hematologic Neoplasms
;
Herpesvirus 4, Human
;
Histiocytes
;
Humans
;
Hyperplasia
;
Karyotype
;
Lymphohistiocytosis, Hemophagocytic
;
Pancytopenia
;
Partial Thromboplastin Time
;
Prothrombin Time
;
Transaminases
10.Significance of Repeated Polymerase Chain Reaction (PCR) Testing for Diagnosis of Pulmonary Tuberculosis.
Soo Ok KIM ; Yoon Hee KIM ; Su Young CHI ; Hee Jung BAN ; In Jae OH ; Yong Soo KWON ; Kyu Sik KIM ; Yu Il KIM ; Sung Chul LIM ; Young Chul KIM
Tuberculosis and Respiratory Diseases 2010;68(6):345-349
BACKGROUND: The polymerase chain reaction (PCR) test is important for the confirmatory diagnosis of tuberculosis (TB) caused by Mycobacterium tuberculosis. The aim of this study was to analyze the yield of repeated PCR testing in patients with confirmed pulmonary TB. METHODS: The medical records of 130 patients, who had more than two consecutive PCR tests and a M. tuberculosis-positive sputum culture from August, 2006 to December, 2007, were retrospectively reviewed for the purposes of this study. A positive TB-PCR test was defined as at least one positive test result. RESULTS: The cumulative positive PCR test rate was 80% (104/130), with gradually increasing rates of positive findings upon the first, second and third TB-PCR tests with 52.3%, 68.5% and 75.4%, respectively. However, further testing did not increase the positive rate further. CONCLUSION: Repeated PCR testing at least three times for M. tuberculosis is helpful for diagnosis of pulmonary TB.
Humans
;
Medical Records
;
Mycobacterium tuberculosis
;
Polymerase Chain Reaction
;
Retrospective Studies
;
Sputum
;
Tuberculosis
;
Tuberculosis, Pulmonary