Results 11 to 20 of about 2,405,716 (326)
The future of sperm: a biovariability framework for understanding global sperm count trends
Human Fertility, 2021 The past 50 years have seen heated debate in the reproductive sciences about global trends in human sperm count. In 2017, Levine and colleagues published the largest and most methodologically rigorous meta-regression analysis to date and reported that ...
M. Boulicault +6 more
semanticscholar +2 more sources
Effects of Normal Morphology Sperm Count on Fertilization Time in Infertile Couples with Teratospermic Males: An Evaluation with an Embryoscope [PDF]
Journal of Urological Surgery, 2022 Objective:Incubation of the embryo is the vital step in assisted reproductive techniques. Embryoscope systems are incubators that keep the embryo stable and allow for continuous observation without opening the lid.
Elif Ganime Aygun, Emine Karabük
doaj +2 more sources
Middle East Fertility Society Journal, 2013 Objective: To correlate late spermatid score and sperm count in men with normal semen analysis and oligozoospermia undergoing intracytoplasmic sperm injection (ICSI) to set the average threshold of spermatids/tubule of testicular tissue needed for normal
Ibrahim Fahmy +3 more
doaj +2 more sources
Effect of sorafenib on sperm count and sperm motility in male Swiss albino mice
Journal of Advanced Pharmaceutical Technology & Research, 2015 The issue of male germ line mutagenesis and the effects on developmental defects in the next generation has become increasingly high profile over recent years. Mutagenic substance affects germinal cells in the testis.
S. Shetty, L. Bairy
semanticscholar +2 more sources
Psychological and physiological adaptations to sperm competition in humans [PDF]
, 2005 Postcopulatory competition between males, in the form of sperm competition, is a widespread phenomenon in many animal species. The extent to which sperm competition has been an important selective pressure during human evolution remains controversial ...
Pound, N, Goetz, AT, Shackelford, TK
core +6 more sources
Health Science Reports, 2022 Background and Aims Several studies have shown that the length of ejaculatory abstinence alters sperm quality. However, the available data are conflicting and none seems to exist in a Nigerian population.
Roland E. Akhigbe +3 more
doaj +1 more source
Abnormal Human Sperm Parameters Contribute to Sperm DNA Fragmentation in Men with Varicocele [PDF]
The World Journal of Men's Health, 2018 Purpose: This study was performed to evaluate and compare threshold sperm parameters and sperm DNA fragmentation index (DFI), and further analyzed whether sperm DFI could be predicted from sperm parameters in men with varicocele.
Yong-Seog Park +5 more
doaj +1 more source
Effect of Aerobic Bacterial Infection to The Semen Parameters [PDF]
مجلة التربية والعلم, 2007 Semen analysis and culture assay were done ( 1 00) patients suspected tobe subfertile men attended the male infertility clinic at Al-Khansa'ahospital in Mosul.
Asma'a Al-Taee, Abbas Al-Dajaily
doaj +1 more source
The association between sperm aneuploidy and male infertility: Screening, aetiology and possible routes to alternative therapy [PDF]
, 2003 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.One in six couples wishing to start a family are infertile.
Tempest, Helen Ghislaine
core +6 more sources