[原著］腸管及び尿路からの病原性大腸菌の諸性状に関する検討

概要

論文の詳細を見る
Fifty strains of diarrheagenic E. coli (isolated from human diarrheal stool specimens) and 49 strains of uropathogenic E. coli (from human infected urinary specimens) were characterized for their biological behaviors: 38.9% of the latter strains produced hemolysin, while only 10% of the former did so. Resistance to human serum was identified in approximately 20% of the two groups. However, high susceptibility to the bactericidal effect of human serum was more commonly observed in the diarrheagenic strains. Protease productivity, extracellular protein secretion, and presence of Type I pili were observed in an equivalent population of the two groups. In contrast, the presence of hemagglutinin other than Type I pili were observed in 45.9% , of diarrheagenic group compared to 23.1% of the uropathogenic group. SDS-PAGE profiles of whole cell lysates showed some differences in protein distribution between the two groups for some selected strains.
琉球医学会,Ryukyu Medical Associationの論文