A longitudinal study of semen quality among Chinese sperm donor candidates during the past 11 years
نویسندگان
چکیده
منابع مشابه
Decline of semen quality among Chinese sperm bank donors within 7 years (2008–2014)
Semen from 5210 sperm bank donors was analyzed and trends in semen quality were evaluated at Shandong Human Sperm Bank between 2008 and 2014. After 2-7 days of abstinence, semen samples were collected. Measurements of semen volume, sperm concentration, sperm forward motility, and total sperm count were performed. There were significant declining trends in semen volume, sperm concentration, sper...
متن کاملEvidence for decreasing quality of semen during past 50 years.
OBJECTIVE To investigate whether semen quality has changed during the past 50 years. DESIGN Review of publications on semen quality in men without a history of infertility selected by means of Cumulated Index Medicus and Current List (1930-1965) and MEDLINE Silver Platter database (1966-August 1991). SUBJECTS 14,947 men included in a total of 61 papers published between 1938 and 1991. MAI...
متن کاملDecline in semen quality among infertile men in Brazil during the past 10 years.
PURPOSE To investigate whether the semen quality of men undergoing conventional semen analysis is deteriorating over time. MATERIALS AND METHODS We analyzed and compared the sperm count, motility and morphology of 2300 semen samples provided by males undergoing conventional seminal analysis, from years 2000 to 2002 and 2010 to 2012. The incidences of severe oligozoospermia and azoospermia ove...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-67707-x