Results 11 to 20 of about 6,305,601 (337)

Association of X Chromosome Aberrations with Male Infertility

open access: yesActa Medica Bulgarica, 2021
Male infertility is caused by spermatogenetic failure, clinically noted as oligoor azoospermia. Approximately 20% of infertile patients carry a genetic defect.
Xharra S.   +5 more
doaj   +1 more source

Immunoglobulins and the X-chromosome [PDF]

open access: yesBMJ, 1969
Serum levels of immunoglobulins (Ig) G, M, and A were determined in 28 women with an additional X-chromosome (XXX), and in equal numbers of age-matched normal women and men. Mean IgM levels were found to be highest in the XXX group, intermediate in normal women, and lowest in men; these differences were statistically significant.
M. E. Monk-Jones   +3 more
openaire   +7 more sources

Epigenetic-structural changes in X chromosomes promote Xic pairing during early differentiation of mouse embryonic stem cells

open access: yesBiophysics and Physicobiology, 2022
X chromosome inactivation center (Xic) pairing occurs during the differentiation of embryonic stem (ES) cells from female mouse embryos, and is related to X chromosome inactivation, the circadian clock, intra-nucleus architecture, and metabolism. However,
Tetsushi Komoto   +2 more
doaj   +1 more source

Association of Parental Origin with Clinical Profile in Klinefelter Syndrome [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2015
Introduction: Several genomic imprinting mechanisms have been postulated to report the parent-of-origin in Klinefelter syndrome. It was stated in the literature, parental origin has an effect on behavioral phenotype of Klinefelter individuals, but the
Ranganath Vallabhajosyula   +2 more
doaj   +1 more source

Genomic Structure, Evolutionary Origins, and Reproductive Function of a Large Amplified Intrinsically Disordered Protein-Coding Gene on the X Chromosome (Laidx) in Mice

open access: yesG3: Genes, Genomes, Genetics, 2020
Mouse sex chromosomes are enriched for co-amplified gene families, present in tens to hundreds of copies. Co-amplification of Slx/Slxl1 on the X chromosome and Sly on the Y chromosome are involved in dose-dependent meiotic drive, however the role of ...
Martin F. Arlt   +4 more
doaj   +1 more source

A second X chromosome contributes to resilience in a mouse model of Alzheimer’s disease

open access: yesScience Translational Medicine, 2020
The second X chromosome confers resilience in a mouse model of Alzheimer’s disease potentially through the X-linked gene Kdm6a. The advantage of an extra X Whether sex chromosomes contribute to sex difference in Alzheimer’s disease (AD) is unknown. In AD,
Emily J. Davis   +26 more
semanticscholar   +1 more source

X chromosome inactivation in human development

open access: yesDevelopment, 2020
X chromosome inactivation (XCI) is a key developmental process taking place in female mammals to compensate for the imbalance in the dosage of X-chromosomal genes between sexes.
C. Patrat   +2 more
semanticscholar   +1 more source

X-Chromosome Inactivation [PDF]

open access: yesCurrent Biology, 1994
In female mammals, all X chromosomes except one are transcriptionally inactivated early in embryonic development. This is known as X-chromosome inactivation and is a form of dosage compensation, giving equal dosage of the products of X-linked genes in males and females. The mechanism is of considerable interest as an example of differential behavior of
openaire   +4 more sources

Enhanced chromatin accessibility contributes to X chromosome dosage compensation in mammals

open access: yesGenome Biology, 2021
Background Precise gene dosage of the X chromosomes is critical for normal development and cellular function. In mice, XX female somatic cells show transcriptional X chromosome upregulation of their single active X chromosome, while the other X ...
Irene Talon   +13 more
doaj   +1 more source

Landscape of X chromosome inactivation across human tissues

open access: yesNature, 2016
X chromosome inactivation (XCI) silences transcription from one of the two X chromosomes in female mammalian cells to balance expression dosage between XX females and XY males. XCI is, however, incomplete in humans: up to one-third of X-chromosomal genes
T. Tukiainen   +19 more
semanticscholar   +1 more source

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