Results 51 to 60 of about 16,641 (207)
Andrology, EarlyView.Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas +6 more
wiley +1 more source
Aquaculture ReportsRapid 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
Arachidonic acid triggers [Ca2+]i increases in rat round spermatids by a likely GPR activation, ERK signalling and ER/acidic compartments Ca2+ release. [PDF]
PLoS 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
The use of deidentified organ donor testes for research
Andrology, EarlyView.Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova +4 more
wiley +1 more source
Journal 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]
PLoS 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
Is there a future for spermatid injections? [PDF]
Human Reproduction, 1998 Microinjection of spermatids into oocytes has proven to be a successful assisted reproduction procedure in the animal model. In the human, low fertilization and cleavage to the 4-cell stage were reported after intracytoplasmic sperm injection (ICSI) with round spermatids.
P, Vanderzwalmen +9 more
openaire +2 more sources
The role of iron in normal and impaired testicular function
Andrology, EarlyView.Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer +2 more
wiley +1 more source
Journal of Lipid Research, 2018 The sphingolipids (SLs) of rodent spermatogenic cells (spermatocytes, spermatids) and spermatozoa contain nonhydroxylated and 2-hydroxylated versions of very-long-chain (C26–C32) PUFAs (n-V and h-V, respectively) not present in Sertoli cells (SCs). Here,
Florencia X. Santiago Valtierra +7 more
doaj +1 more source
Andrology, EarlyView.ABSTRACT Background More than 1000 genes have been identified as predominantly expressed in the human testis. Advances in gene editing technologies have enabled the rapid and efficient generation of genetically engineered mice. This approach facilitates the screening of genes essential for spermatogenesis by analyzing knockout mouse models.
Yumiao Qiu +2 more
wiley +1 more source