Results 1 to 10 of about 15,364,011 (346)

Associations between semen phytoestrogens concentrations and semen quality in Chinese men

open access: yesEnvironment International, 2019
Background: Phytoestrogens (PEs) are naturally estrogen-like chemicals, and increasing evidences have indicated their endocrine disruption effects on male reproductivity, but the conclusions from previous epidemiological studies were controversial ...
Guanxiang Yuan   +8 more
doaj   +4 more sources

Study on Influencing Factors of Semen Quality in Fertile Men

open access: yesFrontiers in Physiology, 2022
ObjectiveTo establish a system for evaluation of semen quality in fertile men by factor analysis (FA).MethodsThe FA method was used to analyze five sperm test indicators for fertile men (sperm pH, sperm motility, sperm progressive motility, semen density,
Ning Wang   +9 more
doaj   +3 more sources

Influence of Single Layer Centrifugation with Canicoll on Semen Freezability in Dogs

open access: yesAnimals, 2022
This study evaluated how semen selection by single layer centrifugation (SLC) with Canicoll affects semen freezability in dogs. A total of eighteen ejaculates, collected from dogs with optimal and suboptimal semen quality (optimal: normal morphology (NM)
Guillaume Domain   +7 more
doaj   +1 more source

Semen Quality Traits of Two Thai Native Chickens Producing a High and a Low of Semen Volumes

open access: yesVeterinary Sciences, 2023
Semen quality traits such as semen volume, sperm motility, sperm concentration, pH, and color are very important, since they can determine the fertility potential of the semen.
Ngassa Julius Mussa   +2 more
doaj   +1 more source

Decline in semen quality among 30,636 young Chinese men from 2001 to 2015

open access: yesFertility and Sterility, 2017
Chuan Huang, Liqing Fan, Wenbing Zhu
exaly   +2 more sources

Impact of environmental factors on human semen quality and male fertility: a narrative review

open access: yesEnvironmental Sciences Europe, 2022
Background Worldwide rising trend in infertility has been observed in the past few years with male infertility arising as a major problem. One main reason for the rise in male infertility cases is declining semen quality.
Naina Kumar, A. Singh
semanticscholar   +1 more source

Regulation of semen quality by fatty acids in diets, extender, and semen

open access: yesFrontiers in Veterinary Science, 2023
Fatty acids (FAs) are classified into different types according to the degree of hydrocarbon chain saturation, including saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), omega-3 polyunsaturated fatty acids (omega-3 PUFAs) and omega-6 ...
Chong-Shan Yuan, Jun Wang, Wen-Fa Lu
semanticscholar   +1 more source

From Oxidative Stress to Male Infertility: Review of the Associations of Endocrine-Disrupting Chemicals (Bisphenols, Phthalates, and Parabens) with Human Semen Quality

open access: yesAntioxidants, 2022
Exposure to endocrine-disrupting chemicals (EDCs) may result in oxidative stress and endocrine system disturbance, which can have an impact on human reproduction and development.
I. Virant-Klun   +2 more
semanticscholar   +1 more source

Spatiotemporal trends in human semen quality

open access: yesNature reviews. Urology, 2022
Over the past four decades, studies of various designs have reported spatial and temporal trends in human semen quality. Several standardized-methodology studies in homogeneous populations that compare specific cities within a country or a continent ...
Jacques Auger   +3 more
semanticscholar   +1 more source

Association between ambient particulate matter exposure and semen quality in fertile men

open access: yesEnvironmental Health, 2022
Background Several studies have suggested adverse effects of particulate matter (PM) exposure on male reproductive health; few have investigated the association between PM exposure and semen quality in a large population of fertile men.
Wei Wu   +9 more
semanticscholar   +1 more source

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