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카이틴 , 카이토산 , EDTA , DTPA 의 방사성스트론튬 ( Sr-85 ) 착화물 형성에 관한 비교 연구
범희승,김영호,김지열 ( Hee Seung Bom,Young Ho Kim,Ji Yeul Kim ) 대한핵의학회 1998 핵의학 분자영상 Vol.32 No.4
Purpose : Chitin and chitosan are nontoxic natural chelators that chelate radiostrontium effectively. The purpose of this study was to compare radiostrontium chelation of chitin and chitosan with that of well known chemical chelators, namely EDTA and DTPA. Materlats and Methods : The chelaton rates of chitin, chitosan, EDTA and DTPA were compared using a column chromatography method (Sephadex G-25M, Sweden). Three kinds of chitins and four kinds of chitosans were used. All of them were water soloble. Results : Phosphated chitosan showed the highest chelation yield of more than 97% at pH 7. All of chitins, chitosans, EDTA and DTPA showed chelation yield of more than 90% independent of varing pH level. Conclusion : Chitin and chitosan have similar chelation rate as compared with EDTA and DTPA. (Korean J Nucl Med 1998;32;391-5)
범희승,김성렬,양건호,윤종만,김석빈,박일종,박광숙 대한소화기내시경학회 1985 Clinical Endoscopy Vol.5 No.1
Esophagopericardial fistala is a rare and usually life threatening complication of both benign and malignant esophageal disease. A case of pyopneumopericarduim in 45 year-old female is reported. Streptocoeeus viridana in pas celtore was isolated from pericardial pus. The disorder resulted from eaqyhagoyericardial fistula which probably developed as a complication of esophageal diverticnlum. The diagnasis of the fistula was established preoperatively on the basis of chest X-ray, esophagogram and. endoeeopic findings. The treatment was thoracotorny with drainage of pericardium, diverticulectomy and antimicrobial chemotherapy. The patient improved postoperatively.