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양성 및 악성 위 , 십이지장병변시 위액에서의 Glycoprotein 및 Alcian Blue Binding Capacity
송인성 ( In Sung Song ),김정룡 ( Chung Yong Kim ),장세경 ( Sae Kyung Chang ),김해련 ( Hae Ryun Kim ),임판식 ( Pan Sik Lim ),윤용범 ( Yong Bum Yun ),정원재 ( Won Jae Jung ) 대한소화기학회 1987 대한소화기학회지 Vol.19 No.2
To identify the difference in the composition of the glycoproteins of gastric juice in patients with benign and malignant peptic ulear disease, binding capacity of alcian blue and concentration of N-acetyl neuraminic acid of gastric juice were assayed in patietns with erosive gastritis, benign gastric ulcer, advanced gastric cancer and duodenal ulcer. The results were as follows. 1) Protein concentrations of gastric juice were higher only in patients with advanced gastric cancer compared with those of controls. 2) Alcain blue binding capacities of gastric juice were increased in patients with erosive gastritis, benign gastic ulcer and duodenal ulcer, but there was no difference between active and healing stage of duodenal ulcer. 3) Concentration of N-acetyl neuraminic acid of gastric juice in patients with advanced gastric cancer were higher compared with those of control and benign gastric ulcer. The above data suggest that some substance(s) other than N-acetyl neuraminic acid which binds
간암의 크기와 혈청 Alpha - Fetoprotein 치 및 초음파 밀도와의 상호관계
송인성(In Sung Song),김정룡(Chung Yong Kim),이효석(Hyo Suk Lee),정영화(Young Hwa Chung),윤용범(Yong Bum Yun),정현채(Hyun Chae Jung),이진호(Jin Ho Lee),김용태(Yong Tae Kim) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.3
N/A The patients with hepatocellular carcinoma (HCC) show a wide range of serum alpha-fetoprotein (AFP). The ultrasonographic (US) echogenicity of HCC is also variable. The determinant factors of serum AFP level and US echogenicity are unclear. There are still a lot of controversies on the adequate criteria of the earlier detection of HCC. This study was designed to reevaluate the relationship between the size of 75 HCCs and serum AFP and between the size and US echogenicity, and then to propose a more adequate detecton criteria for smaller HCCs which can still be resectable. The results were as following; 1) There was no significant correlation between the diameter of HCC (in cm) and the logrithmic values of serum AFP when all the HCC (n=75) were included. However, a closer correlation between the diameter and those of serum AFP when only 37 HCCs with serum AFP higher than 100 ng/ml were selected (r=0.53, p<0.01). 2) HCCs less than 4 cm in diameter were hypoechoic on US in 61%, while those, the size of which were between 4 cm and 8 cm and larger than 8 cm were hyperechoic in 78% and 92%, respectively (p < 0.01). 3) The echogenicity of HCC was significantly correlated with serum AFP level (p<0.05), but was not related to tumor location in the liver, HBsAg positivity, associated liver cirrhosis and pathological type of HCC (p>0.05). These findings suggested that when serum AFP is above 100 ng/ml, the increment of the size can be expected by the elevation of serum AFP and that there is a pitfall in the US detection of HCC; the HCCs with the diameter of around 4 cm which can be isoechoic. Therfore, we proposed that US be used in complement with follow-up serum AFP to detect smaller HCC.
소화성 궤양 , 위염 및 기능성 위장장애 환자에서 Campylobacter Pylori 의 검출과 이에 대한 혈청 IgG 항체가의 의미
송인성(In Sung Song),김정룡(Chung Yong Kim),이효석(Hyo Suk Lee),최상운(Sang Woon Choi),최규완(Kyu Wan Choi),윤용범(Yong Bum Yun),정현채(Hyun Chae Jung),송영욱(Yung Wook Song),김의종(Eui Chong Kim),김우호(Wu Ho Kim) 대한소화기학회 1988 대한소화기학회지 Vol.20 No.1
N/A To assess the detection rate of Campylobactes pylori, the frequency of histological gastritis and the serum level of IgG antibody to C. pylori, we have studied 142 patients with upper gastrointestinal disorders including peptic ulcer, erosive gastritis and non-ulcer dyspepsia. The results were as follows: 1) There was no difference of detection rate of C. pylori among the peptic ulcer, erosive gastritis and endoscopically normal subjects. 2) There was no difference of serum level of IgG antibody to C. pylori measured by ELISA method among the various disease states. 3) When C. pylori was present in the gastric mucosa, histological active gastritis was detected more frequently (p < 0.005). 4) In patients with histological chronic or active gastritis accompanied by gastric C. pylori, the serum level of IgG antibody to C. pylori was higher than that in persons with normal histology and negative C. pylori. 5) Among the endoscopically normal patients, the serum level of IgG antibody to C. pylori of the patients complaining hunger pain was higher than that of no pain. In conclusion, C. pylori may be one of the etiologies of gastritis and non-ulcer dyspepsia rather than the etiology of peptic ulcer.
확률론적인 신뢰도기준에 의한 적정설비예비율의 결정에 관한 연구
朴正濟(Jeong-Jae Park),崔在錫(Jae-Seok Choi),尹用範(Yong-Bum Yun),鄭永範(Young-Bum Jung) 대한전기학회 2008 전기학회논문지 Vol.57 No.8
This paper proposes an alternative methodology for deciding an optimum deterministic reliability level (IRR; Installed Reserve Rate) by using probabilistic reliability criterion (LOLE; Loss of Load Expectation). Additionally, case studies using the proposed method induce the characteristics of relationship between the probabilistic reliability index (LOLE) and deterministic reliability index (IRR) for 2008 and 2010 years in Korea power system. The case study presents a possibility that an optimum IRR level in Korea can be assessed using the proposed method. Korea power system has been using the LOLE criterion to determine the adequacy of installed capacity (ICAP) requirement. The criterion in Korea is that the loss of load expectation shall not exceed the available capacity more than five day in ten years (=0.5[days/year]). The probabilistic reliability evaluation and production cost simulation program which is called PRASim is used in order to evaluate the relationship and optimum IRR in this paper.
만성특발성 변비 및 당뇨병성 변비 환자에 대한 대장통과시간의 비교 연구
노임환(Im Hwan Roe),정현채(Hyun Chae Jung),김성연(Sung Yun Kim),이효석(Hyo Suk Lee),윤용범(Yong Bum Yoon),송인성(In Sung Song),최규완(Kyoo Wan Choi),김정룡(Chung Yong Kim),최병인(Byun In Choi) 대한내과학회 1990 대한내과학회지 Vol.39 No.5
N/A Measurement of colonic transit time with radiopaque markers is a simple and useful modality in evaluating canstipation. We calculated the segmental colonic transit time in healthy controls (n=34), chronic idiopathic constipated patients, and constipated patients with diabetic autonomic neuropathy (n=14), Total colonic transit time was 24.1±8.1 hrs for the healthy controls, 21.1±8.8 hrs for men, and 25.8±5.3 hrs in women. Also, the segmental transit time was 3.9±1.7 hrs for the right colon, 11.8±5.2 hrs for the left colon, and 8.5±5.5 hrs for the rectosigmoid. The mean colonic transit time did not differ significantly by age or sex. The proportion of the transit time in the right colon, left colon, and the rectosigmoid were 17.4%, 51.6%, and 32.4%, respectively. The chronic idiopathic constipated patients were 14 females, whose total and segmental transit times were delayed markedly; 74.2±40.9, 18.7±14.4, 33.4±51.6, and 22.1±15.7 hrs for the total colon, right colon, left colon, and rectosigmaid, respectively (p<0.001). These proportions showed no significant difference compared with the healthy controls: 24.0%, 50,5%, and 24.7% for the right colon, left colon, and rectosigmoid, respectively, In 14 cases with constipated diabetic autonomic neuropathy, the colonic transit time was also delayed: 55.1±16.8, 16.2±7.0, 17.0±8.8, and 22.0±11.7 hrs for the total colon, right colon, left colon, and rectosigmoid, respectively. These proportions showed a significant delay of transit time in the rectosigmoid: 29.9%, 31.0%, and 41.2% in the right colon, left colon, and rectosigmoid, respectively, p<0.05, Also, in the non-constipated patients with diabetic autonomic neuropathy, the proportion of colonic transit in the rectosigmoid was as high as 46.6%, even though the transit time was not delayed compared with the healthy controls. It was remarkable that transit in the rectosigmoid was prolonged in the diabetic autonomic neuropathy.