Results 1 to 10 of about 20,184 (239)
Redox Biology, 2023 During spermatogenesis, mitochondria extend along the whole length of spermatid tail and offer a structural platform for microtubule reorganization and synchronized spermatid individualization, that eventually helps to generate mature sperm in Drosophila.
Jun Yu
exaly +3 more sources
Clinical efficacy of spermatid conception: analysis using a new spermatid classification scheme [PDF]
Human Reproduction, 1999 Fertilization and pregnancy outcomes of 50 round spermatid injection (ROSI) and 20 elongated spermatid injection (ELSI) treatment cycles are related to various characteristics of the cycles, with particular reference to spermatid developmental stage as assessed by using a classification scheme adapted to this purpose.
Alberto Barros, Mário Sousa
exaly +3 more sources
Development of a procedure for isolation, identification and quality assessment of bovine spermatids and evaluation of their fertilizing ability in vitro [PDF]
Frontiers in Bioengineering and BiotechnologyIntracytoplasmic spermatid injection into oocytes has limited efficiency in cattle, with no offspring generated so far, partly due to ambiguous spermatid identification.
Rolando Pasquariello +10 more
doaj +2 more sources
Jurnal Kedokteran Hewan, 2023 The objective of this study was to determine the effect of ethanol extract of neem (Azadirachta indica) leaves on the number of spermatids and androgen receptor expression in the testicular tissue of New Zealand White (NZW) rabbits.
Usma Aulia +6 more
doaj +1 more source
Frontiers in Plant Science, 2023 Autophagy is a highly conserved system that delivers cytoplasmic components to lysosomes/vacuoles. Plastids are also degraded through autophagy for nutrient recycling and quality control; however, the involvement of autophagic degradation of plastids in ...
Takuya Norizuki +5 more
doaj +1 more source
Fly, 2023 Valosin-containing protein (VCP) is a versatile and ubiquitously expressed AAA+ ATPase that regulates multiple stages of Drosophila spermatogenesis. While VCP has documented roles in mitotic spermatogonia and meiotic spermatocytes, it is also highly ...
Tyler J. Butsch +2 more
doaj +1 more source
Animals, 2020 Sexual hormones are essential for the process of spermatogenesis in the testis. However, the effect of maternal genistein (GEN) on the pups’ testicular development remain-unclear.
Zhicheng Shi +8 more
doaj +1 more source
Exploring the role of mononuclear phagocytes in the epididymis
Asian Journal of Andrology, 2015 The onslaught of foreign antigens carried by spermatozoa into the epididymis, an organ that has not demonstrated immune privilege, a decade or more after the establishment of central immune tolerance presents a unique biological challenge.
Nicolas Da Silva, Tegan B Smith
doaj +1 more source
“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
Asian Journal of Andrology, 2015 Biomarker-based sperm analysis elevates the treatment of human infertility and ameliorates reproductive performance in livestock. The negative biomarker-based approach focuses on proteins and ligands unique to defective spermatozoa, regardless of their ...
Peter Sutovsky +3 more
doaj +1 more source