title: Sperm immobilization by dental focus microorganisms.
abstract: Focal infections and their ability to produce alterations in different tissues have been in dispute for long time. The purpose of this work was to observe "in vitro" the effect of an Escherichia coli filtrate obtained from open pulpar necrosis on human sperm motility. It was observed that the E. coli filtrate produced a loss in sperm motility. The immobilizating factor was studied and characterized as a heat-stable, resistant to lyophilization and non-dializable substance, which could via blood stream reach the male reproductive system and affect sperm motility.
mesh_terms: D003790:Dental Pulp Necrosis / Q000382:microbiology; D004305:Dose-Response Relationship, Drug; D004355:Drug Stability; D004926:Escherichia coli / Q000378:metabolism*; D005491:Focal Infection, Dental / Q000382:microbiology*; D006358:Hot Temperature; D006801:Humans; D066298:In Vitro Techniques; D008297:Male; D013078:Sperm Immobilizing Agents / Q000378:metabolism / Q000494:pharmacology*; D013081:Sperm Motility / Q000187:drug effects
chemical_list: D013078:Sperm Immobilizing Agents