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구광호,이상용,유언호 중앙대학교 의과대학 의과학연구소 1984 中央醫大誌 Vol.9 No.2
A number of studies have been performed to reduce myocardial ischemic injury with various pharmacological agents which include β-blockade, nitroglycerin, mannitol, hyaluronidase, glucose-K-insulin and adrenal steroids in the laboratory animal since knowledge of fact that extent of myocardial infarction is closely related to patient survival. The present study was undertaken to investigate how glucocorticoid exert its pharmacological effects on the isoproterenol-induced experimental myocardial infarction in rats. Young rats of the Sprague Dawley strain were used in this investigation and the preliminary study was carried out to establish the normal values of serum enzymes and electrocardiogram in 15 control rats. The experiment was divided into 3 groups, a prednisolone untreated infarction group(80 rats) and a prednisolone single dose treated infarction group(80 rats) and a prednisolone double dose treated infarction group(80 rats). The motality rates, the extent of infarction, changes of serum enzyme level, and electrocardiographic findings were compared between each experimental group. The results were summarized as follows: 1. The mortality rates of rats were 20% in the prednisolone untreated infarction group, 16.3% in the prednisolone single dose treated infarction group and 18.8% in the prednisolone double dose treated infarction group. 2. The extent of myocardial infarction after 36 hours was increased in the prednisolone double dose treated infarction group compared with that of the untreated infarction group. 3. The elevation of serum enzyme in the prednisolone treated infarction group was greater than in the untreated infarction group. 4. The summation of J-point elevation in electrocardiogram after 24 hours was increased in the prednisolone double dose treated infarction group compared with that of the untreated infarction group. 5. The summation of J-point elevation and R wave amplitude showed significant correlation with the extent of myocardial infarction in all study groups. These results suggest that prednisolone exert hazardous effect in the treatment of experimental myocardial infarction in rats.
이기환,구광호,이상용,이규용,유언호,김종숙 ( Ki Whan Lee,Kwang Hoo Koo,Sang Yong Lee,Kyu Yong Lee,Un Ho Ryoo,Chong Sook Kim ) 대한소화기학회 1974 대한소화기학회지 Vol.6 No.1
The measurements of sium amylase and urine amylase for 2-1 and 2 hrs were caried ou normal perso,-s, 118 pat;:enls vith disardei s in the upp r alimentary tract, 184 patie.,ts v, ith h;le- cystopathy and 26 patients ivith acute pancreatitis. The follosving rc.su1ts were drawn: In the normal prsons, the average determination of serum amylas was 5-l. I L 21, 9. Units ' 100 m]. It shov;ed no difference by sex and age. 2 The frequezcy manifesting raise of serum amylase (the value higher than mean+2S.I),,, v,as 5 ] y in the patients with the upper G.I. Disorders, an<l 6, l,jj in the patients of chiIccys'.:>p.ithy v, ith normal features in cholecys.ograms. It, however, showed 2S. 7, of frequeny appeaiing nis:.. of serv,m an.ylase in the patients of cholecystopathy with abnorrnalities in roentgenographic exa!ii- ;iations indicating a mean value of 86. 4 31. 67 units,'l0(l ml. 3, The determination of s rum amylase in the pat,ents of acute pancreatitis was 12a. ] un!ts,'100 ml on the initial day, and it showed ahrupt diminution thereafter. 4. Each dete:mination of urine amylase for 24 and 2 hnurs was 1394. 3 .867. 43 and 15 4 -(j;, Hi units in the normal pers1ns, but there was no significant shift in the group of the uppr:.;- G,I disorders, and a little raise in the group of cholecystopathy. In the group of acute panc:eatili:., ii showed marked rais of urine amylas, ,6562, 9---4526, 3<J units for 24 hours on the se ond cia o!' ailment), revealins: subs quent gradual cle rease, (30i;>. 9 l 1927. 92 units on the sexth day',. It must b emphasized that in picture of urine amylase should be a great help for c!iagnos!.ng tli. Conditions.