Results 111 to 120 of about 855,599 (268)

Achiasmy: Male fruit flies are not ready to mix

Frontiers in Cell and Developmental Biology, 2016
Maintenance of the chromosomal copy number over generations and recombination between homologous chromosomes is a hallmark of meiotic cell division.
Alphy John, Kavya Vinayan, Jishy Varghese   +2 more
doaj   +1 more source

Advent of NK3R Antagonists for the Treatment of Menopausal Hot Flushes: A Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT The menopause transition is marked by symptoms predominantly attributed to declining oestrogen levels. Approximately 80% of women experience associated symptoms, and 25% experience severe symptoms. The commonest are vasomotor symptoms (VMS), collectively referring to hot flushes and/or night sweats.
Aaran H. Patel, Aureliane Pierret, Edouard G. Mills, Alexander N. Comninos, Waljit S. Dhillo, Ali Abbara   +5 more
wiley   +1 more source

Errors in chromosome segregation during oogenesis and early embryogenesis [PDF]

, 2010
Errors in chromosome segregation occurring during human oogenesis and early embryogenesis are very common. Meiotic chromosome development during oogenesis is subdivided into three distinct phases.
A Dyban, A Kuliev, A Kuliev, A Mantzouratou, A Pujol, AL Barlow, C Gutierrez-Mateo, C Gutierrez-Mateo, C Staessen, C Tease, C Tease, C Tease, C Yuncken, CM Conn, CM Conn, D Wells, D Wells, E Bendsen, E Fragouli, E Fragouli, E Fragouli, E Fragouli, E Iwarsson, EY Cheng, F Pellestor, F Pellestor, G Sher, HE Hall, J Cohen, J Cozzi, JD Delhanty, JD Delhanty, JD Delhanty, JD Delhanty, KT Jones, L Gianaroli, L Gras, L Voullaire, L Voullaire, L Wilton, M Hultén, M Sandalinas, M Simopoulou, MA Hultén, ML Lenzi, NV Kovaleva, P Platteau, PA Almeida, PA Hunt, R Angell, R Mahmood, S Cupisti, S Evsikov, S Mastenbroek, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, S Munné, T Anahory, T Hassold, TR Oliver, Y Verlinsky   +65 more
core   +1 more source

Understanding the Variability of Peanut‐Oral Immunotherapy Responses by Multi‐Omics Profiling of Immune Cells

Allergy, EarlyView.
This study analyzes molecular drivers of OIT responsiveness. Multi‐omics profiling of peanut‐stimulated PBMCs in a controlled peanut‐OIT trial identifies immune, transcriptomic, and epigenetic changes distinguishing complete responders from incomplete responders. Key findings highlight gastrointestinal immune mechanisms, including extracellular exosome
Aleix Arnau‐Soler, Sarah E. Ashley, Ahla Ghauri, Alexander C. S. N. Jeanrenaud, Ingo Marenholz, Katharina Blumchen, Penelope Cibin, Alisa Iakupova, Norbert Hubner, Kirsten Beyer, Young‐Ae Lee   +10 more
wiley   +1 more source

The Bacillus subtilis signaling protein SpoIVB defines a new family of serine peptidases [PDF]

, 2002
The protein SpoIVB plays a key role in signaling in the sigma (K) checkpoint of Bacillus subtilis. This regulatory mechanism coordinates late gene expression during development in this organism and we have recently shown SpoIVB to be a serine peptidase ...
Brannigan, J A, Cutting, S M, Hoa, N T
core   +2 more sources

YKT6 Is Essential for Male Fertility by Promoting Meiosis Progression During Spermatogenesis of Mice

Cell Proliferation, EarlyView.
Specifically ablating Ykt6 in pre‐meiotic germ cells and meiotic spermatocytes leads to complete sterility and meiotic arrest in conditional knockout male mice. YTK6 is required for stabilising intercellular bridges between spermatocytes due to its key role in maintaining protein homeostasis and vesicular transport‐dependent functions in spermatocytes,
Jie Cen, Xiaochen Yu, Ziqi Wang, Wenbo Liu, Jianze Xu, Qian Fang, Fei Gao, Yongzhi Cao, Hongbin Liu   +8 more
wiley   +1 more source

Cell-Cycle Kinases Coordinate the Resolution of Recombination Intermediates with Chromosome Segregation

Cell Reports, 2013
Homologous recombination leads to the formation of DNA joint molecules (JMs) that must be resolved to allow chromosome segregation, but how resolution is temporally coupled with chromosome segregation is unknown.
Joao Matos, Miguel G. Blanco, Stephen C. West   +2 more
doaj   +1 more source

Structural analysis of the NifL‐NifA complex reveals the molecular basis of anti‐activation of nitrogen fixation gene expression in Azotobacter vinelandii

The FEBS Journal, EarlyView.
Using cryo‐EM combined with biochemical and genetic approaches, we mapped the interaction surface between NifL and NifA to gain insights into the regulation of nitrogen fixation genes in A. vinelandii. Our findings suggest that NifL, a homolog of histidine kinases lacking phosphorylation activity, evolved to act as a steric block of NifA activity ...
Marcelo Bueno Batista, Jake Richardson, Michael W. Webster, Dmitry Ghilarov, John W. Peters, David M. Lawson, Ray Dixon   +6 more
wiley   +1 more source

ATF7IP2, a meiosis-specific partner of SETDB1, is required for proper chromosome remodeling and crossover formation during spermatogenesis [PDF]

, 2023
Qiqi Shao, Yanan Zhang, Yanlei Liu, Yongliang Shang, Si Li, Lin Liu, Guoqiang Wang, Xu Zhou, Ping Wang, Jinmin Gao, Jun Zhou, Liangran Zhang, Shunxin Wang   +12 more
openalex   +1 more source

Explaining Adaptation in Genetic Algorithms With Uniform Crossover: The Hyperclimbing Hypothesis

, 2012
The hyperclimbing hypothesis is a hypothetical explanation for adaptation in genetic algorithms with uniform crossover (UGAs). Hyperclimbing is an intuitive, general-purpose, non-local search heuristic applicable to discrete product spaces with rugged or
Burjorjee, Keki M.
core   +2 more sources