title: Sperm motility changes after coincubation with various uropathogenic microorganisms: an in vitro experimental study.
abstract: OBJECTIVE
  We investigated the relationship between semen motility and various uropathogenic microorganisms.
  
  
  METHODS
  Semen specimens from healthy donors were divided into portions and incubated with uropathogenic microorganisms in concentrations varying from 2 x 10 to 2 x 10(7) microorganisms/ml(-1). Uninfected suspensions of spermatozoa served as controls. In all samples, sperm motility was examined at the second, fourth, and sixth hours after incubation in order to assess motility as a function of time. Enterobacter aerogenes, Staphylococcus epidermidis, S. aureus, Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli were used as bacterial agents. Besides these bacterial strains, Candida albicans was also used.
  
  
  CONCLUSIONS
  Observed negative impact on sperm motility was not correlated with microorganism concentration. However, until a certain concentration threshold, this impact was prominent. Regardless of the microorganism, this deleterious effect could not be confirmed in specimens coincubated with lower microorganism concentration. No or poor correlation was found between motility and bacteria concentration except with E. aerogenes at the second hour. The data indicates that sperm function impairment is not related to direct sperm and bacteria interaction. Instead, bacterial concentration enough to change the environment or to consume high energy might result in motility loss.
authors.affiliation: Microbiology, Yuzuncü Yil University Medical Faculty, Cumhuriyet Cad., 65200 Van, Turkey.
authors.forename: Mustafa
authors.initials: M
authors.lastname: Berktas
authors.forename: Sabahattin
authors.initials: S
authors.lastname: Aydin
authors.forename: Yuksel
authors.initials: Y
authors.lastname: Yilmaz
authors.forename: Kursat
authors.initials: K
authors.lastname: Cecen
authors.forename: Hamza
authors.initials: H
authors.lastname: Bozkurt
mesh_terms: D000293:Adolescent; D000328:Adult; D001419:Bacteria / Q000472:pathogenicity*; D002176:Candida albicans / Q000472:pathogenicity; D021902:Enterobacter aerogenes / Q000472:pathogenicity; D006801:Humans; D066298:In Vitro Techniques; D007711:Klebsiella pneumoniae / Q000472:pathogenicity; D008297:Male; D011550:Pseudomonas aeruginosa / Q000472:pathogenicity; D012661:Semen / Q000382:microbiology*; D013081:Sperm Motility; D013211:Staphylococcus aureus / Q000472:pathogenicity; D013212:Staphylococcus epidermidis / Q000472:pathogenicity; D013997:Time Factors