Results 51 to 60 of about 754,638 (394)

Male cancer patient sperm cryopreservation for fertility preservation: 10-year monocentric experience

open access: yesBasic and Clinical Andrology, 2021
Résumé Contexte Lacryoconservation des spermatozoïdes, méthode efficace pour préserver lafertilité masculine, est très avantageuse pour les hommes atteints de cancer.Malheureusement, comme les médecins et les patients atteints de cancersignorent les ...
Xiao Liu   +11 more
doaj   +1 more source

Sperm defects in primary ciliary dyskinesia and related causes of male infertility

open access: yesCellular and Molecular Life Sciences, 2019
The core axoneme structure of both the motile cilium and sperm tail has the same ultrastructural 9 + 2 microtubular arrangement. Thus, it can be expected that genetic defects in motile cilia also have an effect on sperm tail formation.
A. Sironen   +4 more
semanticscholar   +1 more source

Evidence of the presence of calcium/calmodulin-dependent protein kinase IV in human sperm and its involvement in motility regulation [PDF]

open access: yes, 2005
The mechanisms involved in the regulation of mammalian sperm motility are not well understood. Calcium ions (Ca(2+)) have been suggested to play a key role in the maintenance of motility; nevertheless, how Ca(2+) modulates this process has not yet been ...
Buffone, Mariano Gabriel   +6 more
core   +1 more source

Semen parameters are seriously affected in acephalic spermatozoa syndrome

open access: yesBasic and Clinical Andrology, 2022
Résumé Contexte Des études antérieures ont rapporté que certains patients qui avaient des spermatozoïdes sans tête présentaient une mauvaise qualité du sperme, mais il n’y a eu aucune analyse systématique publiée sur la qualité du sperme chez les ...
Li-juan Ying   +7 more
doaj   +1 more source

Small RNAs are trafficked from the epididymis to developing mammalian sperm

open access: yesbioRxiv, 2017
RNAs present in mature mammalian sperm are delivered to the zygote at fertilization, where they have the potential to affect early development. The biogenesis of the small RNA payload of mature sperm is therefore of great interest, as it may be a target ...
Upasna Sharma   +7 more
semanticscholar   +1 more source

Re-sperm collection with a short abstinence time: a strategy for successful cryopreservation in cryptozoospermia [PDF]

open access: yesJournal of Men's Health
Background: Recent studies suggest that short-term abstinence may improve semen parameters; however, its impact on cryptozoospermia remains underexplored.
Wen-Rui Zhao   +7 more
doaj   +1 more source

Effect of seven oriental herbs mixture (Jogyeongbohyeoldan) on the restoration of ovarian aging in aged mice

open access: yesClinical and Experimental Obstetrics & Gynecology, 2021
Purpose of Investigation: Ovarian aging remains a difficult problem in infertility treatment. The traditional oriental herbs have been widely used for female infertility treatment.
Jong-Kil Joo   +7 more
doaj   +1 more source

Co-evolution of male and female reproductive traits across the Bruchidae (Coleoptera) [PDF]

open access: yes, 2008
1. Despite the obvious importance of spermatozoa to individual reproductive success a general explanation of variation in spermatozoan form and function is still lacking. In species with internal fertilization, sperm not only have to interact with the
Andrés   +57 more
core   +1 more source

Leydig cell metabolic disorder act as a new mechanism affecting for focal spermatogenesis in Klinefelter syndrome patients: a real world cross-sectional study base on the age

open access: yesFrontiers in Endocrinology, 2023
BackgroundKlinefelter’s syndrome (KS) was once considered infertile due to congenital chromosomal abnormalities, but the presence of focal spermatozoa changed this.
Huang Liu   +12 more
doaj   +1 more source

Cryopreservation of common carp sperm [PDF]

open access: yes, 2003
Experiments were carried out to investigate the effect of five extenders (sucrose, glucose, fructose, KCl and a saline carp sperm extender) and two cryoprotectants (dimethyl-sulfoxide (DMSO) and methanol) on the cryopreservation of common carp sperm ...
Horváth, Ákos   +2 more
core   +1 more source

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