1.Histopathologic Analysis of the Repeated Renal Biopsies in the Course of Lupus Nephropathy.
Korean Journal of Pathology 1997;31(5):436-445
Lupus nephropathy shows a variable clinical course including remission, relapse and progression to renal failure. To examine the clinical or morphological parameters which might be related to the progression of lupus nephropathy, we have analyzed renal biopsies of 19 patients (M : F=5 : 14), who underwent repeated renal biopsies by morphology and morphometry. The average age of the patients was 22.8+/-9.0 years. The mean interval between two biopsies was 34.5+/-13.3 months. The first renal biopsies of these patients were diagnosed with WHO class IV (74%), class II (11%), class I (5%), class III (5%), and class V (5%). According to the clinical data the patients were divided into 3 groups, static, relapsing and progressive. At the time of the first biopsies, the amount of proteinuria in both the static and relapsing groups was significantly higher than that in the progressive group (P<0.05). The volume density of the renal cortical interstitium of the first biopsies in the progressive group was significantly greater than that in the static and relapsing groups (0.14+/-0.07 micrometer3/micrometer3 vs. 0.05+/-0.02 micrometer3/micrometer3, P<0.05; 0.14+/-0.07 micrometer3/micrometer3 vs. 0.05+/-0.04 micrometer3/micrometer3, P<0.05). The activity index of the second biopsies in the relapsing group was significantly higher than that in the static group (2.7+/-0.6 vs 1.2+/-1.0, P<0.05). In the progressive group, the percentage of glomeruli with global sclerosis and the volume density of the renal cortical interstitium in the second biopsies was elevated over the first biopsies (P<0.05). Half of the patients in the static and relapsing groups underwent a morphologic transformation on the second biopsy. However, of the 7 patients in the progressive group, only one showed a transformation from WHO class IV to class III, suggesting that the transformation is not related to the progression of lupus nephropathy. These results suggest that interstitial expansion and heavy proteinuria at the time of the first renal biopsy may bode for poor prognosis in lupus nephropathy. Furthermore, they suggest that an increased histologic activity index could be related to the relapse of the disease.
Biopsy*
;
Humans
;
Prognosis
;
Proteinuria
;
Recurrence
;
Renal Insufficiency
;
Sclerosis
2.The Effects of TGF-beta1 & TGF-beta2 on the Proliferation of the Lumbar Facet Joint Capsule in Tissue Culture.
Kyu Yeol LEE ; Young Hyun YOO ; Kwang Woo CHO
Journal of Korean Society of Spine Surgery 1998;5(1):25-32
STUDY DESIGN: This study was undertaken to document the effect of TGF-beta 1 and TGF-beta2 on the proliferation of lumbar facet joint capsule. OBJECTIVES: To study the effect of TGF-beta1 and TGF-beta2 on the proliferation of lumbar facet joint capsule and their proliferation mechanism. SUMMARY OF LITERATURE REVIEW: TGF-beta1 and TGF-beta proliferated mesenchymal tissue . This proliferatine mechanism was involved of PLC-gamma- 1 and tyrosine kinase in signalling. MATERIAL AND METHODS: Three lumbar facet joint capsule was cultured in DMEM-20 media. Its proliferatine and inhibited effect was studied under the metabolic inhibitors and trasnsforming growth factors . RESULTS: TGF-beta1, and TGF-beta2, increased cell proliferation dependent on time and dosage. Both of TGF-beta1, and TGF-beta 2, specific antisense oligonucleotide blocked tile autoc.me effect of growth factor, PLC-gamma-1 specific antisense oligonucleotide inhibited the effect of TGF-beta 1, and TGF-beta2, Genistin inhibited the effect of TGF-beta 1, and TGF-beta2, in time and dosage dependent manner. CONCLUSION: The cell proliferation of lumbar facet joint capsule was involved in PLC- gamma-1 and tyrosine kinase in signalling.
Cell Proliferation
;
Intercellular Signaling Peptides and Proteins
;
Protein-Tyrosine Kinases
;
Transforming Growth Factor beta
;
Transforming Growth Factor beta1*
;
Transforming Growth Factor beta2*
;
Zygapophyseal Joint*
3.Surgical treatment of pulmonary aspergillosis.
Jae Ho JO ; Jin Woo CHANG ; jae Hyun CHANG ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(5):380-383
No abstract available.
Pulmonary Aspergillosis*
4.Correlation between Fatigue and Quality of Life Caused by Stress of Researchers' Work.
Hye Joo PARK ; Yun Young KIM ; Ki Hyun PARK ; Si Woo LEE ; Jong Hyang YOO
Korean Journal of Occupational Health Nursing 2014;23(3):171-179
PURPOSE: The purpose of this research was to provide baseline data by utilizing solutions to health problems caused by work-related stress and to examine a way of treatment by comparing and analyzing how the stresses link to fatigue and quality of researchers' life. METHODS: A survey was conducted with 50 researchers working for in H research institute in Daejeon Metropolitan City from April 10th to May 10th, 2012 to examine the correlation of work stress, fatigue and quality of life. The data were analyzed using the Kruskal-Wallis test to look into examine the difference in work stress, fatigue, and quality of life. Also, the correlation of work stress, fatigue and quality of life was measured through by the Pearson correlation coefficient. The data collected through the questionnaires was were analyzed by SPSS 21.0 based on the significant level with a p-value, 0.05. RESULTS: The results showed that fatigue was caused by work stresses in researchers and quality of life was ranked in a relatively low level. Correlation of work stresses, quality of life and fatigue and work stresses against mental health index was negative and fatigue against physical index was also negative. CONCLUSION: It is necessary to maintain more detailed provisions in order to improve mental health and stress level of researchers. Moreover, systematic, in-depth evaluation should be done to reduce researcher's work-related stress and fatigue. In addition, stress management and prevention program should be implemented for these researchers.
Academies and Institutes
;
Fatigue*
;
Humans
;
Mental Health
;
Quality of Life*
;
Surveys and Questionnaires
;
Research Personnel
5.Long term results and clinical evaluation of lung cancer.
Jae Hyun CHANG ; Jae Ho CHO ; Jin Woo CHANG ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(6):463-469
No abstract available.
Lung Neoplasms*
;
Lung*
6.Clinical evaluation of 32 cases aortocoronary bypass with saphenous vein.
Jae Hyun CHANG ; Jin Woo CHANG ; Jae Ho CHO ; Won Young SONG ; Byung Ha YOO
The Korean Journal of Thoracic and Cardiovascular Surgery 1993;26(6):452-456
No abstract available.
Coronary Artery Bypass*
;
Saphenous Vein*
7.Factors Affecting Pulmonary Function in the Elderly Ex-Smokers.
Belong CHO ; Keun Seok LEE ; Sangwoo OU ; Woo Kyung KIM ; Taiwoo YOO ; Hyun Wook BAIK
Journal of the Korean Geriatrics Society 2001;5(1):56-66
BACKGROUND: The elderly ex-smokers are not free from the effect of previously exposed smoking, and have a tendency to participate in health promoting behavior eagerly. This study was designed to evaluate factors that affect pulmonary function in the elderly ex-smokers. METHODS: The ex-smokers with normal chest radiological findings who visited Seoul National University Hospital Health Promotion Center were analyzed. The effect of various factors including age, height, smoking amount, and duration of smoking cessation on pulmonary function indices were analyzed with bivariate correlation analysis. Multiple regression analysis was performed using factors indentified significant in bivariate correlation tests. RESULTS: Multiple regression analyses were done for the all age group and the elderly group. Factors significantly affecting Forced vital capacity(FVC) were height,age and duration of smoking cessation for both grroups. Smoking amount was not significant. Forced expiratory volume in 1 second(FEV1) was significantly influenced by height, age, duration of smoking cessation, and smoking amount for both group. In the all age group, peak expiratory flow(PEF) was siginificantly influenced by age, regular exercise, and duration of smoking cessation. In the elderly group, PEF was significantly affected by height, age, regular exercise, and duration of smoking cessation. The factors significantly affectiong FEV1/FVC were age, smoking amount in the all age group, and regular exercise, smoking amount in the elderly group. CONCLUSION: Smoking amount was a significant factor decreasing FEV1 in the elderly ex-smoker. Duration of smoking cessation was significant in normalization of pulmonary function indices in both the all age group and the elderly group. It is inferred that smoking cessation is beneficial in reversing the adver sely affected pulmonary function indices even in the elderly.
Aged*
;
Forced Expiratory Volume
;
Health Promotion
;
Humans
;
Seoul
;
Smoke
;
Smoking
;
Smoking Cessation
;
Thorax
8.A Case of Angiosarcoma of the Face and Scalp.
Kwang Hyun CHO ; Seung Joo KANG ; Yoo Shin LEE ; Chul Woo KIM
Korean Journal of Dermatology 1986;24(6):882-886
We report a case of angiosarcoma of the face and scalp in a 76-year-old man. Immunochemical staining with factor 8-related antigen and ultrastructural find ings confirm that this tumor was origined from endothelium. The patient had a good initial response to treatment with radiotherapy.
Aged
;
Endothelium
;
Factor VIII
;
Hemangiosarcoma*
;
Humans
;
Radiotherapy
;
Scalp*
9.A Case of Subacute Cutaneous Lupus Erythematosus.
Seung Joo KANG ; Kwang Hyun CHO ; Yoo Shin LEE ; Chang Woo LEE
Korean Journal of Dermatology 1986;24(6):848-852
Subacute cutaneous lupus erythematosus is a recently recognized distinct subset of lupus erythematosus, having characteristics of clinical, pathologic, serologic, irnrnunologic features. We present a case of subacute cutaneous lupus erythematosus in a 29-year-old woman with symmetric, superficial, nonscarring papulosquamous lesion on the face, scalp, and the extensor surface of the upper extremities. She has a mild systemic illness of musculoskeletal complaints. Serologic abnormalities of the patients are positive rheumatoid factor and anti-Ro antibody test, but fluorescent antinuclear antibody test is negative, which is done by the conventional methods uaing rodent tissue for the substrate. The histopathologic finding of the lesion show the sarne general pattern of the cutaneous lupus erythematosus, and lupus band test is positive.
Adult
;
Female
;
Fluorescent Antibody Technique
;
Humans
;
Lupus Erythematosus, Cutaneous*
;
Rheumatoid Factor
;
Rodentia
;
Scalp
;
Upper Extremity
10.A case of polyarteritis nodosa associated with systemic lupus erythematosus.
Han Joong KIM ; Dae Hyun YOO ; Seong Yoon KIM ; Chang Woo LEE
Korean Journal of Dermatology 1991;29(3):451-455
No abstract available.
Lupus Erythematosus, Systemic*
;
Polyarteritis Nodosa*