Results 121 to 130 of about 90,106 (297)

Optical mapping reveals a higher level of large‐scale structural variants in a family with paternally transmitted myotonic dystrophy and independent Parkinson's disease

The Journal of Pathology, EarlyView.
Abstract Myotonic dystrophy type 1 (DM1) is a clinically challenging multisystem neuromuscular hereditary disorder, with generational increase in severity and earlier age at onset. It is caused by an unstable cytosine‐thymine‐guanine repeat expansion at the DMPK locus, accompanied by associated genetic and epigenetic modifications.
Md Mehedi Hasan, Jenna Craddock, Tingting Gong, Ruth J Lyons, Igor Stevanovski, Sanjog R Chintalaphani, Ira W Deveson, Weerachai Jaratlerdsiri, Kishore R Kumar, Vanessa M Hayes   +9 more
wiley   +1 more source

Speciation with gene flow

PLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long, Xu Zhang, Yue Yu, Gregory L. Owens, Diana J. Rennison, Clarisse Palma‐Silva, Daniel Ortiz‐Barrientos, Loren H. Rieseberg   +7 more
wiley   +1 more source

m6A modification of a 3′ UTR site reduces RME1 mRNA levels to promote meiosis

Nature Communications, 2019
Ime4p is a yeast N6-methyladenosine (m6A) methyltransferase with an unknown role in meiosis. Rme1p is a repressor of meiosis. Here the authors show that Ime4p methylates RME1 3′ UTR to reduce its expression and enable meiosis, thus providing an example ...
G. Guy Bushkin, David Pincus, Jeffrey T. Morgan, Kris Richardson, Caroline Lewis, Sze Ham Chan, David P. Bartel, Gerald R. Fink   +7 more
doaj   +1 more source

Interaction Between Rec8 and Mis4 Is Required for Axis-Loop Chromatin Formation and Homologous Chromosome Recombination During Meiosis. [PDF]

Genes Cells
We identified a Mis4 cohesin loader mutant that is specifically defective in chromatin axis formation and homologous recombination while retaining normal sister chromatid cohesion. The mis4‐LR mutant, carrying the L1150S and R1159G amino acid substitutions, exhibited reduced interaction between Mis4 and Rec8, suggesting a meiosis‐specific role for the ...
Sakuno T, Murayama Y, Haraguchi T, Hiraoka Y.   +3 more
europepmc   +2 more sources

Reproductive Challenges of the Ageing Female: A Comprehensive Narrative Review

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Changes in societal norms over the last few decades have resulted in novel family planning trends, notably delayed childbearing and increased maternal age at the birth of the first child. Despite advances in reproductive medicine, ageing poses significant challenges.
Sofia Bitzika, Meletios P. Nigdelis, Angelos Daniilidis, Erich‐Franz Solomayer, Irene Lambrinoudaki, Efstratios M. Kolibianakis, Dimitrios G. Goulis   +6 more
wiley   +1 more source

Mechanisms of cohesin protection and removal during meiosis in Saccharomyces cerevisiae [PDF]

, 2019
Meiosis is a specialised form of cell division which results in the formation of haploid cells from a diploid progenitor, and thus meiosis halves the chromosome content of the parental cell.
Barton, Rachael Emilia
core  

Effect of Salinity Stress on Gut–Brain–Gonad Axis in the Red‐Eared Slider (Trachemys scripta elegans)

Integrative Zoology, EarlyView.
The increase in salinity leads to changes in the gut microbiota and metabolites of Trachemys scripta elegans, affecting the synthesis and secretion of neurotransmitters or precursors, which can inhibit the secretion of reproductive hormones and affect the self‐renewal and differentiation process of spermatogonial stem cells.
Qiongyu Zhang, Na Li, Xue Tang, Hanru Chen, Meiling Hong, Li Ding   +5 more
wiley   +1 more source

Testicular histopathology and its association with germ cell numbers, serum concentrations of reproductive hormones, and semen quality

Andrology, EarlyView.
Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas, Nina Mørup, Trine H. Johannsen, Anders Juul, Lise Aksglaede, Sofia B. Winge, Kristian Almstrup   +6 more
wiley   +1 more source

The use of deidentified organ donor testes for research

Andrology, EarlyView.
Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova, Marnie W. Skinner, Juliana I. Candelaria, Stephen R. Wellard, Philip W. Jordan   +4 more
wiley   +1 more source

Functional characterization of the Caenorhabditis elegans gene fcd-2 during meiosis and in maintenance of genomic stability [PDF]

, 2009
Fanconi anemia (FA) is a complex cancer susceptibility disorder associated with defects in the repair of DNA interstrand cross-links (ICLs) resulting in occasional developmental defects and in ICL hypersensitivity of patient cells, yet the precise role ...
Silva, Nicola
core