Results 31 to 40 of about 12,760 (248)
Ultrastructure of early spermatocyte development in H. membranacea.
, 2023 (A) TEM image of a spermatocyte in prophase of meiosis I. The nucleus (N) exhibits condensed chromatin (Chr) with synaptonemal complexes. Other organelles like the Golgi apparatus (G), the endoplasmic reticulum (ER) and mitochondria (M) are positioned in
Chukwuebuka William Okafornta (16699188) +7 more
core +1 more source
Asian Journal of Andrology, 2015 Importin proteins were originally characterized for their central role in protein transport through the nuclear pores, the only intracellular entry to the nucleus.
Kate L. Loveland +5 more
doaj +1 more source
Are sperm capacitation and apoptosis the opposite ends of a continuum driven by oxidative stress?
Asian Journal of Andrology, 2015 This chapter explores the possibility that capacitation and apoptosis are linked processes joined by their common dependence on the continued generation of reactive oxygen species (ROS).
Robert J Aitken +2 more
doaj +1 more source
Primary spermatocyte cysts following dicentric chromosome induction.
, 2014 Phase contrast views of a normal testis and yw/DcY(H1); hsFLP2B/+ testis five days after heat shock. The apical portion of a normal testis (A) is filled with cysts, with primary spermatocyte cysts occupying most of the volume.
Jayaram Bhandari (528445) +3 more
core +1 more source
Sperm DNA fragmentation, recurrent implantation failure and recurrent miscarriage
Asian Journal of Andrology, 2015 Evidence is increasing that the integrity of sperm DNA may also be related to implantation failure and recurrent miscarriage (RM). To investigate this, the sperm DNA fragmentation in partners of 35 women with recurrent implantation failure (RIF ...
Carol Coughlan +7 more
doaj +1 more source
Human sperm chromatin epigenetic potential: genomics, proteomics, and male infertility
Asian Journal of Andrology, 2015 The classical idea about the function of the mammalian sperm chromatin is that it serves to transmit a highly protected and transcriptionally inactive paternal genome, largely condensed by protamines, to the next generation.
Judit Castillo +3 more
doaj +1 more source
New insights into the regulation of cholesterol efflux from the sperm membrane
Asian Journal of Andrology, 2015 Cholesterol is an essential component of the mammalian plasma membrane because it promotes membrane stability without comprising membrane fluidity. Given this important cellular role, cholesterol levels are tightly controlled at multiple levels.
Tamara Leahy, Bart M Gadella
doaj +1 more source
Progression through M I in Cap-D3EY00456/ Df spermatocyte.
, 2021 Cap-D3EY00456/ Df spermatocytes expressing Cenp-A/Cid-EGFP and His2Av-mRFP were analyzed by time-lapse imaging at 45 sec intervals. Progression through M I, as observed in the spermatocyte presented in Fig 4F, is shown in a maximum intensity projection ...
Christian F. Lehner (9449522) +1 more
core +1 more source
The spermatocytic seminoma: views on pathogenesis [PDF]
International Journal of Andrology, 1987 The spermatocytic seminoma has clinical and histological characteristics which differ from those of other germ cell tumours of the testis. Classical seminomas and teratomas are believed to originate from intratubular carcinoma‐in‐situ (CIS), which is almost invariably found adjacent to these neoplasms. In addition, DNA analysis of these tumours and the
J, Müller +2 more
openaire +2 more sources
PSMA8‐Containing 20S Proteasome Regulates Spermiogenesis and Male Fertility
Advanced Science, EarlyView.PSMA8 assembles s20S proteasome that degrades specific substrates in elongating spermatids. Degradation of s20S‐substrates activates translation of FXR1‐target mRNAs, which are essential for mitochondrial sheath formation and sperm morphogenesis.
Huiwen Cao +7 more
wiley +1 more source