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- W1983854802 abstract "In a cross-sectional retrospective study, the age-dependency of semen parameters of men with specific andrological diseases was investigated in 3,698 men (mean age 33 years; range 19-63 years) attending a tertiary referral clinic for couple infertility. In all, 1,853 patients suffered from idiopathic infertility (mean age 33.2 years; range 19-60 years), 388 from infections of the accessory glands (34.2; 20-61), 363 had a history of maldescended testes (32.0; 20-51) and 833 a varicocele (33.6; 20-63). In 172 patients, a varicocele and an infection (34.3; 24-54) and in 94 a varicocele and a history of maldecended testes (32.5; 21-53) were found. Semen analysis was performed according to WHO criteria. An age-related decrease in testicular volume was not observed in any group. Total sperm count decreased significantly with advancing age only in patients with an infection of the accessory glands. We found no evidence for age-dependent progressive deterioration of semen variables in the other groups. It may be concluded that the causes for the spermatogenetic defects in men with idiopathic infertility, a history of maldescended testes or varicocele are acquired before adolescence and do not progress during adulthood. In contrast, infections of the accessory glands may lead to decreased sperm counts by functional impairment or partial occlusion of the seminal ducts. Thus, if in the general population declining sperm counts are observed, genital tract infections may be suspected as a contributing factor." @default.
- W1983854802 created "2016-06-24" @default.
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- W1983854802 date "2002-09-01" @default.
- W1983854802 modified "2023-09-26" @default.
- W1983854802 title "Age-related disease pattern in infertile men: increasing incidence of infections in older patients" @default.
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- W1983854802 doi "https://doi.org/10.1046/j.1439-0272.2002.00505.x" @default.
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