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박선양(Seon Yang Park),계경채(Kyung Chae Kye),김병국(Byoung Kook Kim),김노경(Noe Kyeong Kim),이문호(Moon Ho Lee),이규섭(Kye Sup Lee),박문규(Moon Kye Park),박근조(Keun Jo Park) 대한내과학회 1989 대한내과학회지 Vol.36 No.2
N/A It has been suggested that impaired fibrinolysis plays a role in the development of deep vein thrombosis. The net fibrinolytic activity of blood is dependent on the sum of different types of plasminogen activators (PAs) and plasminogen activator inhibitors (PAIs). Therefore, assessment of each component of the fibrinolytic system is important in order to understand the underlying basis of thrombotic disorders. Certain pathological conditions may exhibit elevated plasma PAI which may inactivate endogenous PA by forming PA-PAI complexes. These enzymatically inactive complexes will not be detected by most functional assays. As PAs released into the circulation are captured within minutes by the excess of PAIs, it is reasonable to assume that PAIs may play an important role in regulating the activity of PAs, and hence the net fibrinolytic activity of the blood. Among the different forms of PAIs, PAI-1 synthesizd and secreted by the endothelial cells and found in the platelets has been suggested to play a major role in the regulation of fibrinolytic activity of the blood. For these reasons, we developed an enzyme-linked immunosorbent assay specific of human PAI-1 and measured its plasma levels in normal Korean subjects and in patients with deep vein thrmbosis. 1) Our ELISA for PAI-l measured both the free PAI-1 and u-PA-PAI-1 complexes. 2) The PAI-1 concentration of our PAI-1 standard, a conditioned medium of cultured human umbilical vein endothelial cells, was 257 ng/ml. 3) The PAI-1 concentrations of EDTA plasma in 16 normal Korean subjects ranged from 0-12,8 ng/ ml (4. 8+ 3.4 ng/ml). 4) The plasma PAI-1 levels in 13 patients with deep vein thrombosis were elevated to 2.8-38.4 ng/ml (16.6+ 9.8 ng/ml). This difference was statistically significant when compared to normal subjects (p<0.001). 5) With a cut-off value of 15.0 ng/ml (up to 3 SD from the mean) for normal plasma PAI-1 concentrations, 6 of the 13 patients (46.2%) with deep vein thrombosis were found to have elevated PAI-1 levels in their plasma, while all the normal subjects had their plasma PAI-1 levels in the normal range.
노재경,김계남,윤견일,박이갑,박문규,최용만,한운섭 梨花女子大學校 醫科大學 醫科學硏究所 1984 EMJ (Ewha medical journal) Vol.7 No.4
The nonfunctioning islet cell tumors of pancreas are not associated with obvious sign and symptoms of hormone overproduction. Symptoms, most commonly pain and jaundice, are due to the mass effect of the tumor and invasion of the surrounding structures, and unlike functioning tumors, the location of the tumor has a direct bearing on the patient's symptoms. We have experienced a case of benign nonfunctioning islet cell tumor of the pancreas in 47-year-old female. She was admitted to our hospital due to palpable large mass of her abdomen. She had no obvious sign and symptoms of hormone overproduction. The exploratory laparatomy was done under the impression of retroperitoneal tumor with the information of radiologic finding and abdominal C-T scan. The pathologic diagnosis was benign nonfunctioning is-let cell tumor of the pancreas.