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급성 연쇄상구균 감염후 사구체 신염에 동반된 고혈압성 뇌병증 3례의 MRI 소견
김형노,윤성민,김종신,이창연,Kim Hyoung-No,Yoon Sung-Min,Kim Jong-Shin,Lee Chang-Youn 대한소아신장학회 1997 Childhood kidney diseases Vol.1 No.1
The hypertensive encephalopathy is one of sudden convulsive cause in patients with acute post-streptococcal glomerulonephritis, but commonly, after the episode we can observe only mild to moderately hypertension in APSGN at ER. So these remains some question of what causes the convulsion in patients with APSGN. In this article, we report 3 cases of convulsion in APSGN with only moderate hypertension, the etiology of which proved to be due to hypertensive encephalopathy by the brain MRI. We believe that the brain MRI is a very useful test to diagnose the etiology of convulsion in APSGN and if brain edema in occipital lobe is detected by brain MRI, the convulsion would be due to hypertensive encephalopathy and the prognosis will be very good.
Streptomyces alboniger 가 생산하는 Protease 의 특성에 관한 연구
한강완,김강신,김형노 한국농화학회 1984 Applied Biological Chemistry (Appl Biol Chem) Vol.27 No.3
Some physico-chemical properties of proteolytic enzyme produced from Streptomyces alboniger Hesseltine were characterized. The optimal pH and temperature of the enzyme; were around pH 9.0 and 40℃, respectively. The enzyme was stable between pH 6.0∼10.8 and the enzyme activity was not inactivated by heat treatment in lower temperature than 40℃. However the enzyme activity decreased by 70% of the initial activity for 10minutes at 70℃. The Km value was 7.1μM with Hammarsten casein and 333.3μM with cytochrom C. The activity of enzyme was inhibited by metal ions in the order of Fe^(+++)$gt;Hg^(++)$gt;Cu^(++$gt;Pb^(++)$gt;Zn^(++), whereas Ca++ increased the enzyme activity. There was no effect of Mg^(++) and Co+t on the enzyme activity. The enzyme was inhibited by EDTA strongly. When Ca^(++) was added to the EDTA-denaturated enzyme, the activity of enzyme was restored.