Results 51 to 60 of about 22,975 (207)

Sphingomyelins and ceramides with VLCPUFAs are excluded from low-density raft-like domains in differentiating spermatogenic cells

open access: yesJournal of Lipid Research, 2017
Rat spermatogenic cells contain sphingomyelins (SMs) and ceramides (Cers) with very long-chain PUFAs (VLCPUFAs) in nonhydroxylated (n-V) and 2-hydroxylated (h-V) forms. How these atypical species distribute among membrane fractions during differentiation
Florencia X. Santiago Valtierra   +3 more
doaj   +1 more source

Wide-spread transcriptional perturbations in Baz1a-deficient spermatids.

open access: yes, 2013
(A) Differential expression in normal spermatids vs. spermatocytes. Each point plots expression of a microarray probe averaged between samples. Red, significantly up regulated in spermatids (≥2-fold, q = 0.05); blue, significantly down regulated; gray ...
Scott Keeney (47164)   +7 more
core   +1 more source

Intracellular pH regulation in rat round spermatids [PDF]

open access: yes, 1997
Intracellular pH has been shown to be an important physiological parameter in cell cycle control and differentiation, aspects that are central to the spermatogenic process.
Reyes, Juan G.   +3 more
core   +1 more source

Rapid spermatogenesis and structural analysis of the manchette in Chinese soft-shelled turtle, Pelodiscus sinensis

open access: yesAquaculture Reports
Rapid spermatogenesis is a special mode of sperm development pattern discovered in Chinese soft-shelled turtles (Pelodiscus sinensis). During the breeding season, numerous immature round spermatids are found in the seminiferous tubules of P.
Xi He   +8 more
doaj   +1 more source

TEM images of cell junctions between sertoli cells and spermatids.

open access: yes, 2013
A) Elongated spermatids are shown around the lumen from a wild-type stage VII tubule before spermiation. The residual spermatid cytoplasm can be seen around the spermatid nucleus (N) as a cytoplasmic lobe (CL).
Phillip J. Muckett (338414)   +5 more
core   +1 more source

Outcomes with intracytoplasmic sperm injection using fresh vs. frozen elongated spermatids from microsurgical testicular sperm extraction

open access: yesF&S Reports
Objective: To evaluate the reproductive outcomes of intracytoplasmic sperm injection (ICSI) using fresh and frozen-thawed elongated spermatids obtained from microsurgical testicular sperm extraction (mTESE) from men with nonobstructive azoospermia ...
Jason E. Elliott, M.D.   +4 more
doaj   +1 more source

Arachidonic acid triggers [Ca2+]i increases in rat round spermatids by a likely GPR activation, ERK signalling and ER/acidic compartments Ca2+ release. [PDF]

open access: yesPLoS ONE, 2017
Arachidonic acid (AA), a compound secreted by Sertoli cells (SC) in a FSH-dependent manner, is able to induce the release of Ca2+ from internal stores in round spermatids and pachytene spermatocytes. In this study, the possible site(s) of action of AA in
Joaquin Paillamanque   +7 more
doaj   +1 more source

Is There a Place for Round and Elongated Spermatids Injection inAssisted Reproduction? [PDF]

open access: yes, 2008
Spermatids are the earliest male germ cells with one set of haploid chromosomes. After experiments, mainly in rodents, the spermatid injection was introduced in human assisted reproduction to the treatment of men with non-obstructive azoospermia ...
Nikolettos, Nikos   +2 more
core   +2 more sources

Prophylactic effects of vitamin E and selenium on di(n-butyl) phthalate-induced testicular damage in prepubertal rats

open access: yesJournal of Advanced Biotechnology and Experimental Therapeutics, 2018
Di (n-butyl) phthalate (DBP), a potential endocrine disruptor, adversely affects male reproductive function via activation of oxidative stress. This study was conducted to investigate the protective effects of vitamin E (Vit E) and selenium (Se) on DBP ...
Mohammad Shah Alam; Md Nazmul Hoque
doaj   +1 more source

Transcriptomic Variation during Spermiogenesis in Mouse Germ Cells. [PDF]

open access: yesPLoS ONE, 2016
To explore variations in the transcription activity during spermiogenesis, round and elongated spermatids were collected from ICR/CD1 model mice using laser capture microdissection (LCM) and cauda epididymal sperm samples.
Haiyang Zuo   +7 more
doaj   +1 more source

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