Results 61 to 70 of about 22,975 (207)

Occurrence of bio-immunactive inhibin in rat spermatids

, 1981
Levels of inhibin in the spermatocyte and spermatid enriched fractions of rat testicular extract were estimated using a specific and sensitive radioimmunoassay. The fraction enriched in spermatids had the highest amounts of inhibin activity.
Dandekar, Sucheta P., Sheth, A. R., Seethalakshmi, N.   +2 more
core   +1 more source

Massive DNA damage in piRNA-deficient round spermatids.

, 2012
(A) Schematic representation of the expression of several proteins involved in chromatin remodeling during mouse spermiogenesis. (B) Phosphorylation of histone H2AX during normal spermatogenesis. Note the presence of γH2AX in three distinct types of germ
P. Jeremy Wang (119396), Ke Zheng (119395)   +1 more
core   +1 more source

Elovl4 and Fa2h expression during rat spermatogenesis: a link to the very-long-chain PUFAs typical of germ cell sphingolipids[S]

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, Daniel A. Peñalva, Jessica M. Luquez, Natalia E. Furland, Claudia Vásquez, Juan G. Reyes, Marta I. Aveldaño, Gerardo M. Oresti   +7 more
doaj   +1 more source

PHF7 Modulates BRDT Stability and Histone-to-Protamine Exchange during Spermiogenesis

Cell Reports, 2020
Summary: Spermatogenesis is a complex process of sperm generation, including mitosis, meiosis, and spermiogenesis. During spermiogenesis, histones in post-meiotic spermatids are removed from chromatin and replaced by protamines.
Chang Rok Kim, Taichi Noda, Hyunkyung Kim, Gibeom Kim, Seongwan Park, Yongwoo Na, Seiya Oura, Keisuke Shimada, Injin Bang, Jun-Yeong Ahn, Yong Ryoul Kim, Se Kyu Oh, Hee-Jung Choi, Jong-Seo Kim, Inkyung Jung, Ho Lee, Yuki Okada, Masahito Ikawa, Sung Hee Baek   +18 more
doaj   +1 more source

Production of mouse offspring from zygotes fertilized with freeze-dried spermatids

Scientific Reports, 2022
Mouse cloning by nuclear transfer using freeze-drying (FD) somatic cells is now possible, but the success rate is significantly lower than that of FD spermatozoa.
Sayaka Wakayama, Daiyu Ito, Masatoshi Ooga, Teruhiko Wakayama   +3 more
doaj   +1 more source

Human fertilization with round and elongated spermatids [PDF]

Human Reproduction, 1997
Human spermatids from ejaculate and testicular tissue have been utilized for evaluating human fertilization by intracytoplasmic sperm injection (ICSI) and, where possible, compared with spermatozoa utilizing sibling oocytes. Round and elongated spermatids obtained from ejaculates were either prepared through Percoll gradients or isolated and washed ...
S, Fishel, S, Green, A, Hunter, F, Lisi, L, Rinaldi, R, Lisi, H, McDermott   +6 more
openaire   +2 more sources

Parp1-XRCC1 and the repair of DNA double strand breaks in mouse round spermatids. [PDF]

, 2010
Contains fulltext : 89842.pdf (Publisher’s version ) (Closed access)The repair of DNA double strand breaks (DSBs) in male germ cells is slower and differently regulated compared to that in somatic cells. Round spermatids show DSB repair
de Rooij, Dirk G., Kal, H.B., Ahmed, E.A., Boer, P. de, Philippens, M.E.P., Kal, Henk B., Rooij, D.G. de, Ahmed, Emad A., de Boer, Peter, Philippens, Marielle E. P.   +9 more
core   +1 more source

Location of histones H3 and H4 in spermatids of E. sinensis.

, 2015
(A–C) Immunofluorescent localization of histone H3 in early spermatids. (D) Ultrastructural localization of histone H3 in early spermatids. (E) Ultrastructural localization of histone H3 in intermediate spermatids. (a–c) Immunofluorescent localization of
Ming-Shen Guo (741185), Xian-Jiang Kang (741184), Jiang-Li Wu (741183), Zhao-Hui Zhang (324834), Shu-Mei Mu (741186)   +4 more
core   +1 more source

Identification of novel Y chromosome encoded transcripts by testis transcriptome analysis of mice with deletions of the Y chromosome long arm. [PDF]

, 2005
BACKGROUND The male-specific region of the mouse Y chromosome long arm (MSYq) is comprised largely of repeated DNA, including multiple copies of the spermatid-expressed Ssty gene family.
Ojarikre, Obah A., Obah A Ojarikre, Loveland, Kate, Clemente, Emily J., Reynard, Louise, Affara, Nabeel A., Affara, Nabeel, Peter Ellis, Mahadevaiah, Shantha K., Ellis, Peter J.I., Mahadevaiah, Shantha, Ball, Penny A.F., Peter JI Ellis, Burgoyne, P, Shantha K Mahadevaiah, Nabeel A Affara, Ojarikre, Obah, Loveland, Kate L., Burgoyne, Paul S., Louise Reynard, Kate L Loveland, Aminata Touré, Clemente, Emily, Touré, Aminata, Emily J Clemente, Ball, Penny, Penny AF Ball, Ellis, Peter, Paul S Burgoyne   +28 more
core   +7 more sources

STRESS CAN UNDERMINE THE PROCESS OF SPERMATOGENESIS IN MICE

Jurnal Ners, 2017
Introduction: This study aimed to determine the effect of stress on the process of spermatogenesis and testosterone levels of mice (Mus musculus) male. Method: This was an experimental study using a completely randomized design.
Yuni Sufyanti Arief
doaj   +1 more source