WebTo determine meiotic delay, first meiotic metaphases (MMI) were counted in slide areas in which 1000 mid-pachytene nuclei were counted. Spermatocyte micro-spreading and … Web17 mei 1999 · The meiotic delay was not accompanied by an induction of hyperploid MMII spermatocytes. This can be due to the fact that only one sampling time was used in the present study. Previously, it was shown with colchicine (COL) that hyperploid …
The chemotherapeutic agents nocodazole and amsacrine cause meiotic …
Web4 nov. 2007 · Single intraperitoneal injections with NOC (35 mg/kg) and AMSA (15 mg/kg) caused a meiotic delay of 24h. The timing of sperm sampling for the sperm-FISH assay was adjusted accordingly, i.e. 23 days after treatment. Mice were treated with 18, 35 and 50 mg/kg of NOC, or 5, ... WebMeiotic recombination is a fundamental biological process that plays a central role in the evolution and breeding of plants. We have developed a new seed-based assay for … programme arthaud
Variation of mouse oocyte sensitivity to griseofulvin‐induced ...
Web4 apr. 2024 · This is either done by administering 5,000U (half the traditional dosage) or by administering, a 250mcg (rather than 500mcg) of DNA recombinant form of hCGr (Ovidrel/Ovitrel) in the hope that by doing so the risk of critical OHSS developing will be lowered. While this indeed might be true, it is my opinion, that the reduced dosage is … Web6 sep. 2024 · This work demonstrates that (1) inhibition of Rad51 during Phase 1 is important to prevent competition with Dmc1 for DSB repair, (2) Rad51-mediated meiotic recombination intermediates are initially processed differently than those made by Dmc1, (3) the meiotic recombination checkpoint provides time during prophase 1 for processing of … Web12 aug. 2016 · To identify signatures for meiotic substage-specific gene expression, we developed a novel permutation-based maximum covariance analysis (PMCA), which maps groups of co-expressed genes to combinatorial cytological marker-based staging based antibodies to STRA8, SYCP3, phosphorylated H2AFX, and HISTH1T. programme anthea antibes 2022 2023