Results 21 to 30 of about 1,568,056 (388)

Temporal trends in sperm count: a systematic review and meta-regression analysis. [PDF]

open access: yesHum Reprod Update, 2017
Levine H   +7 more
europepmc   +2 more sources

Temporal trends in sperm count: a systematic review and meta-regression analysis of samples collected globally in the 20th and 21st centuries.

open access: yesHuman Reproduction Update, 2022
BACKGROUND Numerous studies have reported declines in semen quality and other markers of male reproductive health. Our previous meta-analysis reported a significant decrease in sperm concentration (SC) and total sperm count (TSC) among men from North ...
H. Levine   +7 more
semanticscholar   +1 more source

Trend of change of sperm count and concentration over the last two decades: A systematic review and meta‐regression analysis

open access: yesAndrology, 2023
Since the 1970s, several studies found that sperm concentration (SC) and total sperm count (TSC) constantly worsened over time, mainly in high‐income countries.
S. Cipriani   +7 more
semanticscholar   +1 more source

Predictive value of sperm morphology and progressively motile sperm count for pregnancy outcomes in intrauterine insemination. [PDF]

open access: bronzeFertility and Sterility, 2016
L. Lemmens   +10 more
semanticscholar   +2 more sources

Influence of ejaculatory abstinence period on semen quality of 5165 normozoospermic and oligozoospermic Nigerian men: A retrospective study

open access: yesHealth 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]

open access: yesThe 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]

open access: yesمجلة 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

Trends in sperm count in Finnish men [PDF]

open access: bronzeInternational Journal of Andrology, 2011
Bonde, Jens Peter   +5 more
openaire   +5 more sources

In Utero and Postnatal Exposure to High Fat, High Sucrose Diet Suppressed Testis Apoptosis and Reduced Sperm Count. [PDF]

open access: yesSci Rep, 2018
Obesity affects male fertility and maternal diabetes affects the offspring sperm epigenome. However, the effects of in utero exposure to maternal glucose intolerance in combination with postnatal high fat, high sucrose (HFHS) diet consumption on ...
Mao J   +6 more
europepmc   +2 more sources

Evidence for decreasing sperm count in African population from 1965 to 2015. [PDF]

open access: yesAfr Health Sci, 2017
PURPOSE This meta-analysis, following our previous reports those documented an overall 57% diminution in mean sperm concentration around the globe over past 35 years and 32.5% decline in past 50 years in European population, attempts to report the ...
Sengupta P   +4 more
europepmc   +2 more sources

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