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Possible role of elongated spermatids in control of stage-dependent changes in the diameter of the lumen of the rat seminiferous tubule
elongated spermatids stage-dependent changes rat seminiferous tubule
2009/2/23
Adult male rats were treated with a single dose of 650 mg/kg methoxy acetic acid to deplete the seminiferous tubules specifically of pachytene and later spermatocytes. The effect of this treatment a...
Round spermatids show normal testis-specific H1t but reduced cAMP-responsive element modulator and transition protein 1 expression in men with round-spermatid maturation arrest
ene expression human testis spermatogenic impairme
2009/2/18
During spermiogenesis, histones are replaced by transition proteins, which in turn are replaced by protamines. The TNP1 gene-encoding TP1 (transition protein 1) protein contains a cAMP-responsive el...
Round spermatids from prepubertal mouse testis can develop into normal offspring
ICSI genomic imprinting centriole
2009/2/17
We investigated fertilization and embryo development after intracytoplasmic injection of round spermatids collected from mice before puberty. The rates of normal fertilization, blastocyst formation,...
Spermatids from mice after cryptorchid and reversal operations can initiate normal embryo development
Fertility ICSI cryptorchidism
2009/2/17
We investigated fertilization and embryo development following intracytoplasmic injection of round spermatids collected from mice after cryptorchid and reversal operations. The rates of oocyte ac...
Testicular composition, number of A spermatogonia, germ cell ratios, and number of spermatids in three different breeds of boars
Breed boar testis composition
2009/2/16
Seminal quality, including the number of spermatozoa in the ejaculate, varies among breeds of boars. Variation in seminal quality may be explained by breed differences in testicular size and compo...
Preparation and short-term culture of enriched populations of guinea pig spermatocytes and spermatids
spermatogenesis spermatocyte spermatid
2009/2/6
In order to study acrosome biogenesis in vitro, the authors developed techniques for the isolation and culture of enriched populations of guinea pig spermatogenic cells using a modification of the t...
Lack of significant morphological differences between human X and Y spermatozoa and their precursor cells（spermatids）exposed to different prehybridization treatments
significant morphological huma X and Y spermatozoa precursor cells
2008/12/26
Human X and Y spermatozoa were previously compared by several nonmolecular techniques. Recent studies show that in many of the previous investigations, the methods used to identify the spermatozoa wer...
Acute Adverse Effects of the Indenopyridine CDB-4022 on the Ultrastructure of Sertoli Cells, Spermatocytes, and Spermatids in Rat Testes：Comparison to the Known Sertoli Cell Toxicant Di-n-pentylphthalate（DPP）
Antifertility morphology ultrastructure seminiferous epithelium germ cells
2008/12/24
Acute effects of CDB-4022 on testicular ultrastructure were determined. Rats were treated orally with vehicle or a maximally effective single dose of CDB-4022 or Di-n-pentylphthalate (DPP). Prese...
Stage-Specific Expression of the Atce1/Tisp40 Isoform of CREB3L4 in Mouse Spermatids
AIbZIP endoplasmic reticulum unfolded protein response
2008/12/24
The maturation of haploid spermatids into spermatozoa relies on the timely production of proteins required for spermatid differentiation. The mammalian CREB3L4 (cAMP responsive element binding pr...
Appearance of Hyaluronan Binding Protein 1 Proprotein in Pachytene Spermatocytes and Round Spermatids Correlates With Spermatogenesis
Pachytene spermatids round spermatids developing rat testis spermatogenic arrest
2008/12/24
The proprotein form of hyaluronan binding protein 1 (HABP1) has been reported to be present in the pachytene spermatocytes and the round spermatids of the adult testis. To explore the role of HAB...
Diagnostic Value of Differential Quantification of Spermatids in Obstructive Azoospermia
Male infertility testicular biopsy germ cell quantitation
2008/12/19
Testicular biopsies from 80 azoospermic young men were revised and the average numbers per cross-sectioned tubule of each germ cell type were calculated and compared with those of control normal tes...