Results 81 to 90 of about 103,424 (339)
Journal of Animal Reproduction and Biotechnology, 2016 The recovery of epididymal sperm in animals is considered as one of the important tools to preserve high value or endangered species. However, there are no appropriate castrating indicators such as months of age in bull, sperm morphology, and motility ...
Sung-Sik Kang +11 more
doaj +1 more source
Reproductive Biology and Endocrinology, 2023 Background Previous studies have demonstrated an association between male sperm quality and assisted reproduction outcomes, focusing on the effects of individual parameters and reaching controversial conclusions.
Tianwen Peng +7 more
doaj +1 more source
Urologicheskie vedomosti, 2013 The present study gives an overview of the current knowledge on mechanisms providing sperm motility and forward progression. The role of multiple mechanic and chemical factors is described.
Artem Viktorovich Matveyev +3 more
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Advanced Science, EarlyView.This study reports for the first time an oral targeted nanomedicine that conducts ion exchange through engineered Ganoderma‐derived extracellular vesicle, managing both the in‐copper and ex‐copper in a multi‐pronged approach, offering a promising therapeutic strategy for addressing WD with reproductive dysfunction.
Tingting Wang +12 more
wiley +1 more source
Objective Measurement of Sperm Motility
Poultry Science, 1973 Abstract An experiment was designed to develop an objective technique for measuring rooster sperm motility. A Beckman Spectronic 20 spectrophotometer was used to measure optical densities of sperm suspensions while they were flowing through the spectrophotometer.
M. A. Boone, K. A. Wall
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Collective motility of sperm in confined cells [PDF]
Computer Methods in Biomechanics and Biomedical Engineering, 2013 Mammalian fertility analysis is an important industrial issue because of the selection for breeding. This is one reason, beside fundamental interest, for which many studies analyse the individual motion of the spermatozoon (Gaffney et al. 2011). On the other hand, more recent reviews suggest that neither individual motion indicators or molecular ...
Creppy, Adama Kpatagnon +3 more
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Advanced Science, EarlyView.RSPO2 and GDF9:BMP15 heterodimers—core components of oocyte‐secreted factors (OSFs)—coordinate to shape the molecular architecture of preantral granulosa cells via gene‐specific synergistic and antagonistic regulation, mediated through CTNNB1–SMAD2 signaling crosstalk.
Yingmei Wang +7 more
wiley +1 more source
Signaling Enzymes Required for Sperm Maturation and Fertilization in Mammals
Frontiers in Cell and Developmental Biology, 2019 In mammals, motility and fertilizing ability of spermatozoa develop during their passage through the epididymis. After ejaculation, sperm undergo capacitation and hyperactivation in the female reproductive tract – a motility transition that is required ...
Souvik Dey +2 more
doaj +1 more source
In Vitro Fertility of Post-thawed Epididymal Ram Spermatozoa After Storage at 5 °C Before Cryopreservation [PDF]
, 2013 This study addressed the effects of storage duration of epididymides at 5 °C before sperm collection and their fertility after cryopreservation in vitro.
fahrudin, M. (M) +2 more
core
Therapeutic Repair of Sperm Quality Decline Caused by Polytetrafluoroethylene
Advanced Science, EarlyView.Exposure to PTFE (teflon), a commonly used microplastic in non‐stick cookware, significantly reduces sperm quality in both humans and mice. Specifically, PTFE induces the disruption of sperm cytoskeleton and F‐actin assembly through targeting SKAP2 in haploid spermatid.
Shiming Gan +15 more
wiley +1 more source