1.Videothoracoscopic operation.
Hae Kyoon KIM ; Doo Yun LEE ; Yong Han YOON ; Ki Man BAE
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(2):86-88
No abstract available.
2.Lobectomy with video-assisted thoracoscopy.
Yong Han YOON ; Doo Yun LEE ; Hae Hyoon KIM ; Gi Man BAE
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(3):236-240
No abstract available.
Thoracoscopy*
3.A Case of Anti-Thrombin III Deficiency Discovered by Myocardial Infarction.
Eun Chul SHIN ; Young Cheoul DOO ; Rok Yun LEE ; Hyun Soo KIM ; Heung Kook OH ; Tae Ho HAN ; You Mi SEO ; Yoon Chang HAN ; Chong Yun RIM
Korean Circulation Journal 1995;25(1):102-105
Anti-thrombin III deficiency is known as a disease of autosomal dominant trait and relatively common, but in Korea, exact incidence and mortality is not known, In general, Anti-thrombin III deficiency is expressed to venous thromboembolism like deep vein thrombosis or pulmonary embolism. But, arterial embolism is very rare. We experienced a case of Antithrombin III deficiency expressed as myocardial infarction of inferior wall by huge thrombosis in the mid and distal right coronary artery.
Antithrombin III Deficiency
;
Coronary Vessels
;
Embolism
;
Incidence
;
Korea
;
Mortality
;
Myocardial Infarction*
;
Pulmonary Embolism
;
Thrombosis
;
Venous Thromboembolism
;
Venous Thrombosis
4.Grades IV and V Renal Injury: How to Treat?.
Doo Han KIM ; Yun Su JEON ; Nam Kyu LEE
Korean Journal of Urology 2002;43(9):727-732
PURPOSE: Management of major renal injury caused by blunt trauma is still somewhat controversial. We investigated the characteristics of grades IV and V blunt renal injury patients who underwent conservative or operative treatment, and determined the feasibility of conservative treatment of such injury. MATERIALS AND METHODS: We retrospectively reviewed the records of 25 patients who presented our hospital with grades IV or V blunt renal injury. The 10 patients treated conservatively were assigned to group 1, and the 15 patients treated surgically to group 2. Each group was compared with respect to initial evaluation, radiologic findings, associated injuries, duration of hospital and intensive care unit stay, transfusion requirements, complications and follow-up imaging. RESULTS: We found that shock was the only characteristic sign of the surgical treatment group and that the degree of hematuria did not correlate with treatment options. Radiologic findings which differed significantly between the 2 groups were the proportion of devitalized segments to total renal parenchyma and the presence of ureteral opacification despite urinary extravasation. Patients in group 1 had lower transfusion requirements but longer hospitalization, both significantly. Follow-up imaging of group 1 patients revealed functioning renal parenchyma with resolution of retroperitoneal hematoma in 8 of the 10 cases (80%). CONCLUSIONS: This study shows that conservative treatment of blunt grades IV and V renal injury should be considered for patients with hemodynamic stability, no significant associated intra-abdominal organ injuries, devitalized segments less than 25% of renal parenchyma and ureteral opacification despite urinary extravasation on radiologic finding.
Follow-Up Studies
;
Hematoma
;
Hematuria
;
Hemodynamics
;
Hospitalization
;
Humans
;
Intensive Care Units
;
Kidney
;
Retrospective Studies
;
Shock
;
Ureter
5.A Clinical Study on Pseudomembranous Colitis.
Pan Sik LIM ; Han Doo YUN ; Kyong Wook YIM ; In Sung SONG ; Kyoo Wan CHOI ; Chung Yong KIM
Korean Journal of Gastrointestinal Endoscopy 1987;7(1):13-17
The purpose of this study is to review the clinical and pathological features of pseudomembranous colitis in Korea. Ten cases of psedomembranous colitis, which were diagnosed by sigmoidoscopy and biopsy at the Seoul National University Hospital from May 1982 to occtober 1985, were analyzed in terms of the age and sex distribution, underlying diseases, presumptive causative antimicrobials, symptomatology, involved site and tratment. 1) The disease was more prevalent above sixth decade with a slight preponderance on the female. 2) The underlying diseases of the patients were the uterine cervix cancer in 3 cases and one case each of the nasal polyp, cataract, degenerative arthritis, tuberculous gradmuloma, SLE with menngitis, CVA and gingival abscess. 3) As for the presumptive causative drugs, cephalosporin were assaciated in 6 cases, aminoglycoside m 7 cases, penlcillin in 3 cases, Bactrim in 3 cases, antituberculosis drugs in 1 case and anticancer drugs in 1 case. 4) As for the anatotmical distribution of the lesion, the rectum was involved in 5 cases, the rectum and sigmoid colon in 4 cases and up to the descending colon in 1 case. 5) All the cases were cured by medical treatment. In 5 cases, discontinuation of the antimicrobial drugs and supportive care only were effective and in other 5 cases, vancamycin and/or metronidazole together vrith cholestyramine were added to the regimen.
Abscess
;
Biopsy
;
Cataract
;
Cervix Uteri
;
Cholestyramine Resin
;
Colitis
;
Colon, Descending
;
Colon, Sigmoid
;
Enterocolitis, Pseudomembranous*
;
Female
;
Humans
;
Korea
;
Metronidazole
;
Nasal Polyps
;
Osteoarthritis
;
Rectum
;
Seoul
;
Sex Distribution
;
Sigmoidoscopy
;
Trimethoprim-Sulfamethoxazole Combination
;
Trimethoprim, Sulfamethoxazole Drug Combination
6.Surgical removal of a telemetry system in a cynomolgus monkey (Macaca fascicularis):a 12-month observation study
Doo-Wan CHO ; Hyoung-Yun HAN ; Mi-Jin YANG ; Dong Ho WOO ; Su-Cheol HAN ; Young-Su YANG
Laboratory Animal Research 2021;37(4):320-323
Background:
Telemetry is a wireless implanted device that measures biological signals in conscious animals and usually requires surgery for its removal when the study is finished. After removing the device, the animals are either used for other studies or euthanatized.Case presentation: Herein, we report the case of a living cynomolgus monkey (Macaca fascicularis) that was used for the entire experimental period, instead of euthanasia, after surgical removal of an implanted telemetry system.Radiography was used to determine the status of the implanted telemetry, following which, a repair surgery was performed for removing the system; clinical signs were used to preserve the life of the cynomolgus monkey. Postoperative clinical signs, food consumption, hematology, and serum biochemistry were examined during the 12-month observational period. No abnormal readings or conditions were observed in the subject after implant removal.
Conclusions
This study may be a useful case report for living cynomolgus monkeys in telemetry implantations used throughout the study period. We suggest minimizing the suffering and improving the welfare of these animals.
7.Role of Casein Kinase 2 in Parkinsonian Toxin 1-Methyl-4-phenylpyridinium-induced Cell Death.
Seung Yeon LEE ; Jung Yun HWANG ; Jeong Ho HAN ; Doo Eung KIM ; Chung Soo LEE
Journal of the Korean Neurological Association 2010;28(3):157-165
BACKGROUND: Protein casein kinase 2 is involved in signal transduction, cell growth, and apoptosis. However, it has not been elucidated whether parkinsonian toxin 1-methyl-4-phenylpyridinium (MPP+)-induced neuronal cell death is mediated by a casein-kinase-2-mediated pathway. METHODS: We monitored apoptosis-related protein activation, changes in the level of casein kinase 2, nuclear damage, and apoptosis in differentiated PC12 cells exposed to MPP+ in combination with casein kinase 2 inhibitor. RESULTS: Casein kinase 2 inhibitors [4,5,6,7-tetrabromobenzotriazole (TBB), 5,6-dichloro-1-beta-D-ribofuranosylbenzimidazole, and apigenin] reduced MPP+- and rotenone-induced cell death in differentiated PC12 cells. TBB inhibited the MPP+-induced activation of apoptosis-related proteins (decreases in Bid and Bcl-2 levels, increase in Bax levels, cytochrome c release, and caspase-3 activation), increase in casein kinase 2 levels, and nuclear damage. CONCLUSIONS: Administering casein kinase 2 inhibitor TBB at concentrations that do not induce toxic effects may reduce MPP+-induced cell death in differentiated PC12 cells by suppressing the apoptosis-related protein activation that leads to cytochrome c release and subsequent activation of caspase-3. The results suggest that MPP+-induced cell death process is mediated by a casein kinase 2 pathway.
1-Methyl-4-phenylpyridinium
;
Animals
;
Apoptosis
;
Casein Kinase II
;
Casein Kinases
;
Caseins
;
Caspase 3
;
Cell Death
;
Cytochromes c
;
Neurons
;
PC12 Cells
;
Proteins
;
Signal Transduction
;
Triazoles
8.Growth Inhibition After Exposure to Transforming Growth Factor-beta1 in Human Bladder Cancer Cell Lines.
Changho LEE ; Sang Han LEE ; Doo Sang KIM ; Yun Soo JEON ; Nam Kyu LEE ; Sang Eun LEE
Korean Journal of Urology 2014;55(7):487-492
PURPOSE: Transforming growth factor-beta1 (TGF-beta1) plays a dual role in apoptosis and in proapoptotic responses in the support of survival in a variety of cells. The aim of this study was to determine the function of TGF-beta1 in bladder cancer cells. MATERIALS AND METHODS: The role of TGF-beta1 in bladder cancer cells was examined by observing cell viability by using the tetrazolium dye (MTT) assay after treating the bladder cancer cell lines 253J, 5637, T24, J82, HT1197, and HT1376 with TGF-beta1. Among these cell lines, the 253J and T24 cell lines were coincubated with TGF-beta1 and the pan anti-TGF-beta antibody. Fluorescence-activated cell sorter (FACS) analysis was performed to determine the mechanism involved after TGF-beta1 treatment in 253J cells. RESULTS: All six cell lines showed inhibited cellular growth after TGF-beta1 treatment. Although the T24 and J82 cell lines also showed inhibited cellular growth, the growth inhibition was less than that observed in the other 4 cell lines. The addition of pan anti-TGF-beta antibodies to the culture media restored the growth properties that had been inhibited by TGF-beta1. FACS analysis was performed in the 253J cells and the 253J cells with TGF-beta1. There were no significant differences in the cell cycle between the two treatments. However, there were more apoptotic cells in the TGF-beta1-treated 253J cells. CONCLUSIONS: TGF-beta1 did not stimulate cellular proliferation but was a growth inhibitory factor in bladder cancer cells. However, the pattern of its effects depended on the cell line. TGF-beta1 achieved growth inhibition by enhancing the level of apoptosis.
Antineoplastic Agents/administration & dosage/*pharmacology
;
Apoptosis/drug effects
;
Cell Line, Tumor/drug effects/pathology
;
Cell Proliferation/drug effects
;
Cell Separation/methods
;
Dose-Response Relationship, Drug
;
Drug Screening Assays, Antitumor/methods
;
Flow Cytometry/methods
;
Humans
;
Transforming Growth Factor beta1/administration & dosage/*pharmacology
;
Urinary Bladder Neoplasms/*pathology
9.A Case of Ecthyma Gangrenosum Associated with Liver Abscess and Renal Abscess.
Chong Yun KIM ; Hyo Sook AUM ; Yon Hee KIM ; Doo Han KIM
Korean Journal of Dermatology 2003;41(11):1521-1524
Ecthyma gangrenosum is usually seen in the immunocompromised patients or in the patients with underlying malignancy. Ecthyma gangrenosum is a rapidly progressing skin infection characterized by edema, hemorrhage, bullae and necrosis. We experienced the case of a 13-month-old male who had ecthyma gangrenosum associated with liver absess and renal abscess. The patient initially presented with skin lesions of multiple well defined central necrotic black colored large erythematous bullae. The multiple liver abscess with hepatomegaly and multifocal pyelonephritis with focal renal abscess revealed by abdominal ultrasonogram and computed tomogram. In the bacterial cultures of skin, urine and liver aspiration fluid, Pseudomonas aeruginosa was grown. The patient had no immune deficiency disease. We report this case with a review of related literatures.
Abscess*
;
Deficiency Diseases
;
Ecthyma*
;
Edema
;
Hemorrhage
;
Hepatomegaly
;
Humans
;
Immunocompromised Host
;
Infant
;
Liver Abscess*
;
Liver*
;
Male
;
Necrosis
;
Pseudomonas aeruginosa
;
Pyelonephritis
;
Skin
;
Ultrasonography
10.Comparison of long-term results of hancock and carpentier-edwards bioprosthetic valves.
Joung Teak KIM ; Meyun Shick KANG ; Bum Koo CHO ; Sung Nok HONG ; Pill Whoon HONG ; Doo Yun LEE ; Yong Han YOON
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(1):24-31
No abstract available.