This experiment was performed to elucidate the cytologic origin of chemically induced MFH in Wistar rats. The tumor was produced by injections of DMBA(9,10-dimethyl-1,2-benzanthracene). With the produced MFH, cell culture and cloning were performed, followed by establishment of a cell strain, which was investigated by immunohistochemical and electron microscopic studies. The results were as follows. A) By immunohistochemistry of the tumor tissue, fibroblastic cells were positive for MEP-1(specific antibody for fibroblastlike cell of MFH, Takeya, 1993) and Anti-hPH(beta)(Anti-prolyl 4-hydroxylase beta), but negative for TRPM-3 and F4/80. Histiocytelike cells were positive for TRPM-3 and F4/80, but negative for MEP-1 and Anti-hPH(beta). In immunoelectron microscopy, normal spleen macrophage showed linear reactivity in cell membrane for TRPM-3, whereas histiocytelike cells of the tumor disclosed negative reaction. B) At 5 weeks of the primary tumor cell culture, the cells exhibited typical storiform pattern of MFH. C) The established cell strain revealed immunoreactivity for MEP-1 and Anti-hPH(beta), but negative for TRPM-3. The cloned tumor cells showed morphologic characteristics of undifferentiated fibroblastic cell. Latex particle (0.80 micrometer size) phagocytosis was negative in the cloned cell strain. The results of the current study support the concept that principal component cells of MFH is of fibroblastic cell origin.
9,10-Dimethyl-1,2-benzanthracene* ; Animals ; Cell Culture Techniques* ; Cell Membrane ; Clone Cells* ; Cloning, Organism* ; Fibroblasts ; Histiocytoma, Malignant Fibrous* ; Immunohistochemistry ; Macrophages ; Microscopy, Immunoelectron ; Microspheres ; Phagocytosis ; Rats* ; Rats, Wistar ; Spleen

No abstract available.
Hematoma*

BACKGROUND: Through the control of tuberculosis at 22 public health centers under the National Tuberculosis Control Program, this study is purposed to examine the situation of the tuberculous patients and the characteristics of the therapeutic regimens. METHODS: The data was obtained from 8091 medical records of pulmonary tuberculous patients who were registered for treatment at public health center in Seoul during the year of 1993. It was comparatively analysed by the general characteristics(gender, age, chest X-ray findings, sputum results, treatment results, side effects, combined diseases and accompanied extra-pulmonary tuberculosis) according to various regimens of the tuberculosis. RESULTS: The male patients were 5144, the female were 2947. 34.1% of patients were between 21 and 30years of age. Short course regimen was 97.1% and long course regimen was 2.9%. According to chest X-ray findings minimal 53.5%, moderately advanced 41.2%, far advanced 5.3%. Sputum AFB negative was 52.2% and positive was 47.8%. Therapeutic efficiency was high in short course regimen. Among the side effects, dermatologic problems was high and at the regimen of EHRZ side effects were developed highly. Combined diseases were liver diseases(5.2%), DM(4.2%). Accompanied extrapulmonary tuberculosis were pleurisy(5.4% ), superficial lymphadenitis(0.4% ). CONCLUSIONS: There was great effects in the treatment of tuberculosis with short course regimen in the National Tuberculosis Control Program. But only 38% among the expected patients were treated in this country. So the greater efforts were needed to find and treat more patients effectively.
Female ; Humans ; Liver ; Male ; Medical Records ; Public Health* ; Seoul* ; Sputum ; Thorax ; Tuberculosis ; Tuberculosis, Pulmonary*

No abstract available.

No abstract available.
Child* ; Humans ; Nephrotic Syndrome*

No abstract available.
Hemolytic-Uremic Syndrome*

No abstract available.
Asphyxia* ; Evoked Potentials, Auditory* ; Humans ; Infant* ; Infant, Newborn ; Infant, Premature* ; Parturition*

No abstract available.
Liver* ; Neoplasm Metastasis*

No abstract available.
Head* ; Neck*

Thrombomodulin (TM) is thrombin receptor present on the luminal surface of endothelial cells. Because the thrombin-TM complex acts as an anticoagulant, the functional variants or deficiency of TM may lead to increment of thrombotic tendency. In this study, we screened the genetic variants of the TM gene in patients with myocardial infarction (MI) and analyzed the genotype to elucidate the effects of genetic variations of TM gene on the development of the MI. We screened a promoter region and coding sequence of the TM gene using single strand conformation polymorphism-heteroduplex analysis and identified three common genetic variants: those were TM G-33A, TM Ala455Val, and TM C1922T. The genotype frequencies were investigated in the patients with MI (n=234) and control subjects (n=291) by the method of allele-specific oligomer hybridization. The frequencies of mutant genotypes (TM -33A, TM 455Val, and TM 1922T) were higher in patient group compared to the control subjects in males while there were no significant differences in females. In the multiple logistic regression analysis, TM 455Val and TM 1922T alleles were independent risk factors for MI (OR[95% CI: 1.799[1.125-2.878] p=0.014 and 5.624[1.019-31.025], p=0.048, respectively) in males. However, the genetic variations were not independent risk factors for MI in females. There were significant linkage disequilibriums among three genetic variants. These linkage disequilibriums explain the similar effects of three genetic variants on the development of MI. To investigate the effect of the TM G-33A mutation on TM promoter activity, the two TM promoter constructs (pTM-355 and pTM-125, bearing TM -33G or TM -33A) containing of firefly luciferase gene were transfected into HepG2, BAE, and CHO cells. The promoter activities were higher in the promoter constructs with TM -33G compared to the constructs with TM -33A in pTM-355. These results suggest the possibility of the positive predisposing effect of TM -33A allele on MI in males. The functional study for TM Ala455Val and TM C1922T should be followed to elucidate the genotype effects of these mutations on the development of MI. In this study, we identified three genetic variants of TM gene and showed the significant associations between genetic variants and MI in males. These results proposed that TM gene is an attractive candidate for genetic risk factor for MI in Koreans.
Alleles ; Animals ; CHO Cells ; Clinical Coding ; Cricetinae ; Endothelial Cells ; Female ; Fireflies ; Genetic Variation ; Genotype ; Humans ; Linkage Disequilibrium ; Logistic Models ; Luciferases ; Male ; Myocardial Infarction* ; Phenobarbital ; Promoter Regions, Genetic ; Receptors, Thrombin ; Risk Factors* ; Thrombomodulin