2.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
3.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
4.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
5.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
6.Evaluation of ABO Antibody Titration Using Tube and Column Agglutination Techniques.
Chi Hyun CHO ; Ha Nui KIM ; Seung Gyu YUN ; Gye Ryung CHOI ; Jae Yeoul CHOI ; Jang Su KIM ; Chae Seung LIM ; Young kee KIM ; Kap No LEE
Laboratory Medicine Online 2011;1(1):57-63
BACKGROUND: ABO antibody titration is useful for the evaluation of ABO-incompatible bone marrow or solid organ transplantations, yet the results quite vary between different test methods used. We compared the results of microcolumn agglutination and tube methods. METHODS: Anti-A and anti-B isoagglutionin titers were determined in 63 healthy individuals (23 O, 20 A, and 20 B blood groups) using 4 different methods: immediate spin tube (tube), microcolumn agglutination without anti-human globulin (AHG) (CAT), tube with AHG (tube-AHG) and microcolumn agglutination with AHG (CAT-AHG). RESULTS: The median (range) titers of anti-A and anti-B in group O individuals by tube, CAT, tube-AHG, and CAT-AHG methods were 64 (8-512), 64 (8-512), 128 (8-2,048), and 128 (16-2,048); 64 (16-128), 128 (16-256), 128 (16-512), and 256 (16-512), respectively. The median (range) titers of anti-A in group B and anti-B in group A individuals by the four methods were 64 (16-128), 128 (8-128), 128 (8-256), and 256 (8-256); 64 (8-128), 64 (8-128), 32 (8-128), and 64 (8-256), respectively. The isoagglutinin titer measured by CAT-AHGmethod was the highest. The titers measured by CAT and CAT-AHG methods were 0-1 titer higher than those by tube and tube-AHG methods, respectively. Whatever method was used, the isoagglutinin titers were higher in women than in men. CONCLUSIONS: CAT-AHG was the most sensitive method among the four methods tested. Since AHG titer values are critical for the clinical management and CAT has less manual procedures than tube method, CAT-AHG method could be used for the standardization of ABO antibody titration in different institutions.
Agglutination
;
Animals
;
Bone Marrow
;
Cats
;
Female
;
Humans
;
Organ Transplantation
;
Transplants
7.Retrospective Study on Hepatic Enzyme Changes in Patients Treated with Risperidone and Olanzapine.
Hyun Kook LIM ; Chi Un PAE ; Shuk Jun PARK ; Jung Jin KIM ; Chang Uk LEE ; Su Jung LEE ; Chul LEE ; In Ho PAIK
Journal of Korean Neuropsychiatric Association 2004;43(3):283-287
OBJECTIVES: Hetapic dynfunction caused by the use of atypical antipsychotics in patients with psychiatric disorders has not been frequently reported compared to the use of typical antipsychotics. This retrospective study was aimed at assessing the differences of hepatic dysfunctions between patients treated with risperidone and olanzapine through reviewing computerized-medical records. METHODS: Charts of 667 risperidone- and olanzapin treated patients hospitalized at the department of psychiatray, Kangnam St. Mary's Hostpital, between 1998 and 2002, were reviewed. The frequencies of hepatic enzyme elevation in association with clinical variables such as time course of the use of antipsychotics were analyzed. RESULTS: Significant elevation in alanine aminotransferase (ALT) to upper reference range and 2 fold range were seen in olanzapine monotherapy patients, but not in risperidone monotherapy group. There was no difference between olanzapine and risperidone monotherapy groups in time course of hepatic dysfunction. There was no difference in hepatic enzyme elevation between resperidon and olanzapine combination therapy groups. CONCLUSION: The results suggest potential difference in degree of antipsychotic induced hepatic dysfunction between risperidone and olanzapine treatment. Well-desigend prospective study would be nessassary to extend our putative results.
Alanine Transaminase
;
Antipsychotic Agents
;
Humans
;
Reference Values
;
Retrospective Studies*
;
Risperidone*
8.Autoimmune thyroiditis with minimal change disease presenting acute kidney injury.
Ji Su KIM ; Chi Young PARK ; Suk Pyo SHIN ; Yeong Min LIM ; Eun Jung KO ; Hyung Jong KIM
Yeungnam University Journal of Medicine 2014;31(2):127-130
Autoimmune thyroiditis is the most common cause of hypothyroidism in the world. It is characterized clinically by gradual thyroid failure, goiter formation, or both, because of the autoimmune-mediated destruction of the thyroid gland. Renal involvement presenting proteinuria in autoimmune thyroiditis is not uncommon, occurring in 10% to 30% of the cases. Glomerulonephropathy associated with autoimmune thyroiditis, however, is a rare disease. Most reports of autoimmune thyroiditis with glomerulonephropathy have demonstrated a mixed pathological morphology and have been predominantly associated with membranous glomerulopathy. The case of minimal-change disease associated with thyroiditis presenting acute kidney injury is a rare disease that has not been reported in South Korea. Reported herein is the case of a 16-year-old man diagnosed with Hashimoto's thyroiditis, with minimal-change disease presenting acute kidney injury. He revealed hypothyroidism, proteinuria, and impaired renal function. Renal biopsy showed minimal-change disease and minimal tubular atrophy. The patient was treated with thyroid hormone, and his renal function and proteinuria improved. Therefore, for patients with autoimmune thyroiditis presenting unexplained proteinuria, glomerulonephropathy should be ruled out. Conversely, for patients with glomerulonephropathy and persistent proteinuria despite proper treatment, thyroid function and antibody tests should be performed.
Acute Kidney Injury*
;
Adolescent
;
Atrophy
;
Biopsy
;
Glomerulonephritis, Membranous
;
Goiter
;
Humans
;
Hypothyroidism
;
Korea
;
Nephrosis, Lipoid*
;
Proteinuria
;
Rare Diseases
;
Thyroid Gland
;
Thyroiditis
;
Thyroiditis, Autoimmune*
9.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
10.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