Results 1 to 10 of about 18,276 (118)

JAGGED1 modulates bull spermatozoa acrosome reaction and fertilization [PDF]

open access: yesReproduction and Fertility
To acquire fertilizing ability, mammalian spermatozoa (SPZ) must undergo acrosome reaction, which is associated with protein remodeling and relocation. Previous studies showed that Notch ligand JAGGED1 is relocated from the apical to the post-equatorial ...
Patrícia Diniz   +5 more
doaj   +2 more sources

Mechanism of Acrosome Biogenesis in Mammals

open access: yesFrontiers in Cell and Developmental Biology, 2019
During sexual reproduction, two haploid gametes fuse to form the zygote, and the acrosome is essential to this fusion process (fertilization) in animals.
Khawar Mb, , Khawar Muhammad Babar
exaly   +3 more sources

Novel HYDIN variants associated with male infertility in two Chinese families

open access: yesFrontiers in Endocrinology, 2023
IntroductionInfertility is a major disease affecting human life and health, among which male factors account for about half. Asthenoteratozoospermia accounts for the majority of male infertility.
Hui Yu   +52 more
doaj   +1 more source

Molecular Analysis of DPY19L2, PICK1 and SPATA16 in Italian Unrelated Globozoospermic Men

open access: yesLife, 2021
This study aims to evaluate genetic contribution and sperm DNA fragmentation (SDF) in a cohort of 18 unrelated globozoospermic Italian men (Group G). Semen samples were assessed according to the WHO 2010 Laboratory Manual and compared with 31 fertile ...
Fabiana Faja   +7 more
doaj   +1 more source

Semen abnormalities in patients with human papillomavirusassociated infertility detected by electron transmission microscopy

open access: yesВестник урологии, 2023
Introduction. Recent research have suggested a link between human papillomavirus (HPV) and declining male fertility.Objective. To study the pathomorphological changes in ejaculate of patients with human papillomavirus-associated infertility using ...
Kh. S. Ibishev   +4 more
doaj   +1 more source

Differential Expression and Localization of EHBP1L1 during the First Wave of Rat Spermatogenesis Suggest Its Involvement in Acrosome Biogenesis

open access: yesBiomedicines, 2022
The identification and characterization of new proteins involved in spermatogenesis is fundamental, considering that good-quality gametes are basic in ensuring proper reproduction.
Massimo Venditti, Sergio Minucci
doaj   +1 more source

Hypoosmotic Test Combined with Coomassie Blue Staining in Llama Sperm [PDF]

open access: yesSPERMOVA, 2018
To stablish sperm fertilization capacity membrane integrity and functionality are important characteristics to determine. The objectives of the present study were: 1) to evaluate the functionality of the plasma membrane over time by the hypoosmotic test (
M,I, Carretero   +3 more
doaj   +1 more source

Inceptor facilitates acrosomal vesicle formation in spermatids and is required for male fertility

open access: yesFrontiers in Cell and Developmental Biology, 2023
Spermatogenesis is a crucial biological process that enables the production of functional sperm, allowing for successful reproduction. Proper germ cell differentiation and maturation require tight regulation of hormonal signals, cellular signaling ...
Sara Bilekova   +18 more
doaj   +1 more source

Sperm Differentiation from a Cytoskeletal Perspective with a Focus on the Microtubulome: A New Window into Unknown Aspects of Male Infertility [PDF]

open access: yesمجله دانشکده پزشکی اصفهان, 2000
According to the World Health Organization, infertility refers to a couple's inability to conceive following at least one year of regular unprotected sexual intercourse.
Mina Za,mani Almasi   +6 more
doaj   +1 more source

Validation of Calcein Violet as a New Marker of Semen Membrane Integrity in Domestic Animals

open access: yesAnimals, 2023
Many fluorochromes routinely used in semen quality analysis emit in the green and red channels, limiting their possible combination for multiple parameter analysis.
Sophie Egyptien   +5 more
doaj   +1 more source

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