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장티푸스균 Vi 항원의 정제와 만성 보균자 검출을 위한 혈청학적 검색법 개발
이광호,조명제,박정규,임동균,국윤호,차창룡 대한감염학회 1988 감염 Vol.20 No.4
The Vi antigen was purified to improve the usefulness of Vi serology to detect typhoid carriers. The purification of Vi antigen from S. typhi Ty 2 and C. feundii was carried out through saline extraction, enzyme treatment, and cationic detergent treatment. The recovery rate of Vi antigen from S. typhi Ty 2 and C. freundii was 0.024%, 0.096%, respectively. The purified antigens were identified by the double immuno-diffusion test and the mouse protective activity test. The 50% protective dese for the mice challenged intraperitoneally with ?? cells of S. typhi Ty 2 per mouse was 13.8 ng. The quantity of contamination of lipopolysaccharide was less than 15 ng per 10 ㎍ of purfied Vi antigen. The purified Vi antigen was incorporated into a passive haemagglutination(PHA) test and an enzyme immunosorbent assy(ELISA). The optimal concentration of Vi antigen for the sensitization of sheep RBC was 10 ug per ml in the passive haemagglutination test. The optimal condition for coating Vi antigen to polystyrene(PS) plate was pH 10.6 and 10 μlg/ml in the enzyme immunosorbent assay. These methods were sensitive and specific for measuring the anti-Vi antibody titers of rabbits immunized with the S. typhi Ty 2.
마종기.정호승.최승호.송재학.고진하의 최근 시집을 읽고
차창룡,Cha, Chang-Ryong 대한출판문화협회 1997 출판저널 Vol.216 No.-
적막한 시가 자본주의 사회에서 외로운 행보를 계속한다. 올 상반기에 나온 여러권의 시집은 창조와 파괴의 장소, 그 적막한 생명의 원천을 보여준다. 그러기에 지금이야말로 시의 여백의 시대, 아니 시의 르네상스가 도래할 시기인지도 모른다.