Results 11 to 20 of about 16,641 (207)

Reprogramming of round spermatids by the germinal vesicle cytoplasm in mice. [PDF]

open access: yesPLoS ONE, 2013
The birthrate following round spermatid injection (ROSI) remains low in current and evidence suggests that factors in the germinal vesicle (GV) cytoplasm and certain substances in the GV such as the nucleolus might be responsible for genomic ...
Peng-Cheng Kong   +5 more
doaj   +1 more source

Ultrastructural investigation and in vitro recapitulation of spermatid differentiation in a potential bio-indicator species - The marine invertebrate Galeolaria gemineoa (Polychaeta: Serpulidae). [PDF]

open access: yesPLoS ONE, 2017
Galeolaria gemineoa is a sessile broadcast-spawning marine invertebrate, whose spermatozoa have been regarded as a sensitive indicator for water quality monitoring.
Yonggang Lu   +2 more
doaj   +1 more source

Adverse effects of bisphenol A on the testicular parenchyma of zebrafish revealed using histomorphological methods

open access: yesVeterinární Medicína, 2016
The purpose of this study was to evaluate the consequences of bisphenol A (BPA) exposure in zebrafish (Danio rerio). Short-term effects at a testes level were assessed by means of different biomarkers in 60 male zebrafish exposed for 14 days in aquariums
A.J. Lora   +5 more
doaj   +1 more source

Some morphometric and histological description of the seminiferous ,striaghted and rete testis tubules in the testis of indogenous male goats (two years old)

open access: yesKufa Journal for Veterinary Medical Sciences, 2011
    The present Study was carried out on (15) testis indogenous male goats(two years)old . The testes was surrounded by capsule mean thickness (230±3.5) micrometer.The internal structures of the testes represented by seminiferous tubules mean diameters (
Abdul Hadi Sallal Mohammed   +2 more
doaj   +1 more source

Descriptive Analysis of LAP1 Distribution and That of Associated Proteins throughout Spermatogenesis

open access: yesMembranes, 2017
Spermatogenesis comprises highly complex differentiation processes. Nuclear envelope (NE) proteins have been associated with these processes, including lamins, lamina-associated polypeptide (LAP) 2 and the lamin B-receptor.
Joana B. Serrano   +6 more
doaj   +1 more source

Influence of rainfall and temperature on the spermatogenesis of Leptodactylus macrosternum (Anura: Leptodactylidae)

open access: yesZoologia (Curitiba), 2017
In the semi-arid environment, the reproductive success of anurans depends on adaptations in their life cycle, which synchronizes with ideal environmental conditions to maximize the number of offspring.
Marcio F. Chaves   +6 more
doaj   +1 more source

“Breaking news” from spermatids [PDF]

open access: yesBasic 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

A potential role for the clathrin adaptor GGA in Drosophila spermatogenesis

open access: yesBMC 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

Are spermatid injections of any clinical value? ROSNI and ROSI revisited. Round spermatid nucleus injection and round spermatid injection [PDF]

open access: yesHuman 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

Expression and localization of alpha-tubulin N-acetyltransferase 1 in the reproductive system of male mice

open access: yesThe 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
doaj   +1 more source

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