and necrozoospermia (pathological decrease in sperm vitality) is important in directing further investigation and management of infertile patients.
Missing: fluid consequent
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The deterioration in semen quality has a direct impact on a couple's reproductive potential. It has been reported for a few decades that semen quality is ...
Jul 30, 2021 · In 1992, a study found a global 50% decline in sperm counts in men over the previous 60 years. Multiple studies over subsequent ... semen health.
Feb 22, 2023 · Our review suggests that older males have lower antioxidant levels but higher oxidative stress markers in their seminal fluid, and thus may have ...
Missing: vitality | Show results with:vitality
Jul 1, 2020 · Declining ejaculate performance with male age is taxonomically widespread and has broad fitness consequences. Ejaculate success requires fully ...
Older men had more abnormal sperm morphology with decreasing numbers of normal forms (mean 14% versus 25%; P <0.0001) and reduced vitality (mean 51% versus 80%; ...
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Despite a significant decrease on day 5 of abstinence, no further decline in the mean sperm concentration during the following days was observed. Among the ...
This comprehensive, evidence-based meta-analysis concisely presents the evidence of decreased sperm concentration in European male over the past 50 years to ...
Missing: consequent | Show results with:consequent
Hypospermia is a condition in which a man has an unusually low ejaculate (or semen) volume, less than 1.5 mL. It is the opposite of hyperspermia, which is a ...
If the semen is being cryopreserved, a precipitous decline in post-thaw motility may occur at this stage. Subsequently, sperm numbers generally start to decline ...