PubMed · 10337724
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T Kubota, A Sakurai. 1999. [Gonorrhea].. https://pubmed.ncbi.nlm.nih.gov/10337724/
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At the very time when the nation's syphilis infection rates are declining and when new tests make it easier to detect and treat chlamydia, there is a dark cloud on the horizon: more than 60% of the cities that have been hardest hit by gonorrhea infection have experienced increases in the infection rate between 1999 and 2000.
AIM: The effects of certain uropathogenic microorganisms (Neisseria gonorrhoeae, Staphylococcus aureus, Staphylococcus epidermidis and Mycobacterium tuberculosis) on human sperm motility characteristics were studied in vitro. METHODS: In 10 healthy fertile men, ejaculates were aseptically obtained by masturbation and with a swim-up technique, a sperm suspension of high motility and purity was obtained. Several uropathogenic bacteria were obtained from outpatients with genitourinary tract infections. The sperm suspension was incubated with the pathogens at a bacteria: sperm ratio of 50:1 at 37deg. The sperm mobility parameters were estimated with a computer-assisted sperm analyzer (CASA) provided with a multiple-exposure photography system (Madi Corp., Zhejiang, China). Measurements were carried out at 0, 2 and 4 hours of incubation. RESULTS: Staphylococcus aureus significantly decreased the sperm motility and viability, but Staphylococcus epidermidis, Mycobacterium tuberculosis and Neisseria gonorrhoeae did not. CONCLUSION: Staphylococcus aureus has an inhibitory effect on human sperm motility in vitro.