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Semen

About: Semen is a research topic. Over the lifetime, 14571 publications have been published within this topic receiving 407739 citations. The topic is also known as: come & ejaculate.


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Journal ArticleDOI
TL;DR: In the present study, the authors evaluated the diagnostic importance and the clinical significance of sperm DFI tests in infertile males with different clinical conditions.
Abstract: Recent studies show that spermatozoal DNA integrity is essential for normal fertilization and transmission of paternal genetic information to the offspring Additionally, fertilization and embryo development depend on the sperm DNA structure (1,2) Generally, while fertile men have high levels of sperm with intact DNA structure associated with normal semen parameters, infertile men have decreased DNA integrity usually associated with abnormal semen parameters (3,4) However, this association is not unequivocal, as there have been several studies indicating that increased sperm DNA damage can occur in men with conventional sperm parameters within normal reference ranges (3,5,6) Increased sperm DNA damage is defined as the percentage by which the number of cells with defects in protamination of DNA structure in the evaluated sperm cells is calculated and expressed as the sperm DNA fragmentation index (DFI) (3) It is generally accepted that there is a significant negative correlation particularly between the abnormal sperm morphology percentage and DFI (3,6) In the present study, the authors evaluated the diagnostic importance and the clinical significance of sperm DFI tests in infertile males with different clinical conditions (7)

129 citations

Journal ArticleDOI
B.W. Pickett1, J.J. Sullivan1, W.W. Byers1, M.M. Pace1, E.E. Remmenga1 
TL;DR: Motility was depressed by high and low concentrations of seminal plasma, and with a dried skim milk extender, prefreeze and postfreeze motility was greater in samples containing 20% seminal plasma.

129 citations

Journal ArticleDOI
TL;DR: Leukocyte contamination of human sperm preparations can be detected readily by FMLP-induced, luminol-dependent chemiluminescence and the results have an important bearing on the fertilizing capacity of the spermatozoa in vitro.

129 citations

Journal ArticleDOI
TL;DR: Comparisons within bulls for pairs of measurements revealed no significant difference in the number of sperm recovered from the rete testis, from the cauda epididymidis, or representing one-half of those ejaculated daily before surgery.

129 citations

Journal ArticleDOI
TL;DR: The addition of semen extender increases the antioxidative activity in seminal plasma of stallions as well as in undiluted and extender-diluted seminal plasma, and lipid peroxidation does not increase substantially during semen storage.

129 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20241
2023973
20222,093
2021538
2020530
2019498