Results 21 to 30 of about 22,975 (207)
Genetically haploid spermatids are phenotypically diploid
, 1989 Because chromosomal homologues segregate from one another during meiosis, spermatids are genetically different. Post-meiotic gene expression could lead to gametic differences, some of which might lead to preferential transmission of ...
Richard R. Behringer +9 more
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Are spermatid injections of any clinical value? ROSNI and ROSI revisited. Round spermatid nucleus injection and round spermatid injection [PDF]
Human Reproduction, 1998 Tiny numbers of spermatozoa can be extracted from an extensive testis biopsy and be used successfully for intracytoplasmic sperm injection (ICSI) in ∼60% of cases of non-obstructive azoospermia caused by testicular failure (e.g. maturation arrest, Sertoli cell only, cryptorchid atrophy, post-chemotherapy, or even Klinefelter's syndrome).
S J, Silber, L, Johnson
openaire +2 more sources
FNDC3A is required for adhesion between spermatids and Sertoli cells [PDF]
, 2006 Symplastic spermatids (sys) male mice are sterile due to a recessive mutation that causes defective adhesion between spermatids and Sertoli cells within the seminiferous epithelium.
MacGregor, Grant R. +3 more
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A potential role for the clathrin adaptor GGA in
BMC Cell Biology, 2011 Background GGAs (Golgi-localised, γ-ear containing, ADP ribosylation factor-binding) are a family of clathrin adaptors that sort a number of biologically important transmembrane proteins into clathrin-coated vesicles.
Carmichael Jenny, Hirst Jennifer
doaj +1 more source
The Journal of Reproduction and Development, 2020 The structure of microtubules is essential for the fertilizing ability of spermatozoa. Acetylation of α-tubulin plays an important role in flagellar elongation and spermatozoa motility.
Rin YANAI +5 more
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PLoS Genetics, 2023 Haploid males of hymenopteran species produce gametes through an abortive meiosis I followed by meiosis II that can either be symmetric or asymmetric in different species.
Zhiyong Yin +7 more
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“Breaking news” from spermatids [PDF]
Basic and Clinical Andrology, 2013 Abstract During the haploid phase of spermatogenesis, spermatids undergo a complex remodeling of the paternal genome involving the finely orchestrated replacement of histones by the highly-basic protamines. The associated striking change in DNA topology is characterized by a transient surge of both single- and double-stranded DNA breaks in ...
Gouraud, Anne +6 more
openaire +2 more sources
Ovozoa: Journal of Animal ReproductionThis study aims to determine the effect of oral administration of white guava fruit juice (Psidium guajava L.) on the spermatogenic cells of rats (Rattus norvegicus) exposed orally to lead acetate.
Muhammad Faizal Adiutomo +5 more
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Structural characterization of procentrioles in Drosophila spermatids
, 2015 Male gametogenesis in insects is unusual in that the centrioles do not duplicate during the second meiosis and the differentiating spermatids inherit only one centriole.
Maria Giovanna Riparbelli +5 more
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Folia Histochemica et Cytobiologica, 2010 The results of presented study demonstrate expression of ghrelin, its functional receptor GHSR-1a and their genes in spermatogenic cells of rat testis suggesting their functioning within seminiferous epithelium.
Marcin Ruciński +7 more
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