title: Bacteriology of cervix in cases of infertility: effect on human sperm.
abstract: Microorganisms such as Escherichia coli, Pseudomonas aeruginosa, and Bacillus subtilis isolated from cervices of infertile females possessed spermicidal activity. They also agglutinated the human spermatozoa in vitro and showed tail-to-tail agglutination. Cell-free supernatant of these organisms was found to be spermicidal but did not agglutinate spermatozoa in vitro. Spermicidal activity was increased with increase in age of the culture.
mesh_terms: D018407:Bacterial Physiological Phenomena; D002470:Cell Survival; D002584:Cervix Uteri / Q000382:microbiology*; D005260:Female; D006801:Humans; D007247:Infertility, Female / Q000209:etiology / Q000382:microbiology*; D008297:Male; D013073:Sperm Agglutination; D013081:Sperm Motility; D013089:Spermatocidal Agents / Q000378:metabolism; D013094:Spermatozoa / Q000502:physiology*
chemical_list: D013089:Spermatocidal Agents