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Relationship between genital tract infections, sperm antibodies in seminal fluid, and infertility
Abstract:
To explore possible relationships between genital tract infections, sperm antibodies, and infertility, seminal fluid from 100 men was analyzed. Sperm antibodies, measured by an enzyme-linked immunosorbent assay, were detected in 14 of 29 men (48%) with culture-positive asymptomatic infections, 8 of 17 men (47%) with a history of prostatitis or urethritis, 11 of 33 men (33%) with either a varicocele or an abnormal semen analysis, and only 1 of 21 men (5%) with no infection and a normal semen analysis. The incidence of sperm antibodies in the men with infections or urethritis or prostatitis was significantly higher than in the control subjects (P less than 0.005). The sperm antibody isotype in men with infections was mainly IgA, although IgG or IgM were also sometimes present. Of the men with asymptomatic infections, urethritis or prostatitis, significantly (P less than 0.025) more men without sperm antibodies (12 of 24, 50%) were fertile than were those with sperm antibodies (3 of 22, 13%). Men with genital tract infections have a high incidence of antibodies, reactive with spermatozoa, which is associated with reduced fertility.
Insights
Genital tract infections in men are linked to a higher incidence of sperm antibodies, which significantly reduces fertility. This study highlights the impact of infections on male reproductive health.
Area of Science:
- Reproductive Immunology
- Urology
- Andrology
Background:
- Genital tract infections and sperm antibodies are potential causes of male infertility.
- Understanding the relationship between these factors is crucial for diagnosing and treating infertility.
Purpose of the Study:
- To investigate the association between genital tract infections, sperm antibodies, and male infertility.
- To determine the prevalence of sperm antibodies in men with various urogenital conditions.
Main Methods:
- Seminal fluid analysis from 100 men.
- Detection of sperm antibodies using enzyme-linked immunosorbent assay (ELISA).
- Correlation of antibody presence with infection status, medical history, and semen analysis results.
Main Results:
- Sperm antibodies were significantly more prevalent in men with infections (48%) and history of prostatitis/urethritis (47%) compared to controls (5%).
- The primary antibody isotype found was IgA, with occasional presence of IgG or IgM.
- Fertility rates were substantially lower in men with sperm antibodies (13%) compared to those without (50%) among infected individuals.
Conclusions:
- Genital tract infections are associated with a high incidence of sperm antibodies.
- The presence of sperm antibodies in men with genital infections is linked to reduced fertility.
- Sperm antibodies may play a significant role in infection-related male infertility.