Results 31 to 40 of about 6,377,761 (299)

Differences of size and shape of active and inactive X-chromosome domains in human amniotic fluid cell nuclei [PDF]

open access: yes, 1993
It is a widely held belief that the inactive X-chromosome (Xi) in female cell nuclei is strongly condensed as compared to the largely decondensed active X-chromosome (Xa).
Cremer, Thomas   +11 more
core   +1 more source

Self-assembly and DNA binding of the blocking factor in X chromosome inactivation [PDF]

open access: yes, 2007
X chromosome inactivation (XCI) is the phenomenon occurring in female mammals whereby dosage compensation of X-linked genes is obtained by transcriptional silencing of one of their two X chromosomes, randomly chosen during early embryo development. The
Prisco, Antonella   +7 more
core   +2 more sources

Memories of an X-chromosome [PDF]

open access: yesStem Cell Investigation, 2017
Peer ...
Lamas Toranzo, Ismael   +2 more
openaire   +3 more sources

Female chromosome X mosaicism is age-related and preferentially affects the inactivated X chromosome

open access: yesNature Communications, 2016
It is unclear how often genetic mosaicism of chromosome X arises. Here, the authors examine women with cancer and cancer-free controls and show that X chromosome mosaicism occurs more frequently than on autosomes, especially on the inactive X chromosome,
Mitchell J. Machiela   +175 more
doaj   +1 more source

Mean Expression of the X-Chromosome is Associated with Neuronal Density. [PDF]

open access: yes, 2012
peer reviewedBackground: Neurodegenerative diseases are characterized by key features such as loss of neurons, astrocytosis, and microglial activation/proliferation. These changes cause differences in the density of cell types between control and disease
Pascal F. Durrenberger   +43 more
core   +1 more source

Chromosome assignment of two cloned DNA probes hybridizing predominantly to human sex chromosomes [PDF]

open access: yes, 1984
In situ hybridization experiments were carried out with two clones, YACG 35 and 2.8, which had been selected from two genomic libraries strongly enriched for the human Y chromosome.
Back, W.   +5 more
core   +1 more source

The inexorable spread of a newly arisen neo-Y chromosome [PDF]

open access: yes, 2008
This work was financially supported by a Natural Environment Research Council grant to RAN. (NER-B-S-2003-00859) and a studentship from Queen Mary University of London to PV.A newly arisen Y-chromosome can become established in one part of a species ...
Keller, Irene   +13 more
core   +2 more sources

A case of acute lymphoblastic leukemia with additional chromosomes X and 5 associated with a Philadelphia chromosome in the bone marrow

open access: yesTurkish Journal of Hematology, 2010
We report herein a very rare case of acute lymphoblastic leukemia having a chromosomal constitution of 48,XY,+X,+5,t(9;22)(q34;q11) in the bone marrow.
Burak Durmaz   +5 more
doaj   +3 more sources

Detectable chromosome X mosaicism in males is rarely tolerated in peripheral leukocytes

open access: yesScientific Reports, 2021
Age-related male Y and female X chromosome mosaicism is commonly observed in large population-based studies. To investigate the frequency of male X chromosome mosaicism, we scanned for deviations in chromosome X genotyping array intensity data in a ...
Weiyin Zhou   +5 more
doaj   +1 more source

Large-Scale Analysis of X Inactivation Variations between Primed and Naïve Human Embryonic Stem Cells

open access: yesCells, 2022
X chromosome inactivation is a mammalian dosage compensation mechanism, where one of two X chromosomes is randomly inactivated in female cells. Previous studies have suggested that primed human embryonic stem cells (hESCs) maintain an eroded state of the
Roni Sarel-Gallily, Nissim Benvenisty
doaj   +1 more source

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