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chromosome inactivation

No evidence that skewing of X chromosome inactivation patterns is transmitted to offspring in humans

No evidence that skewing of X chromosome inactivation patterns is transmitted to offspring in humans

... Skewing of X chromosome inactivation (XCI) can occur in normal females and increases in tissues with age. The mechanisms underlying skewing in normal females, however, remain controversial. To better ...

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Skewed X-chromosome inactivation in patients with esophageal carcinoma

Skewed X-chromosome inactivation in patients with esophageal carcinoma

... Abstract: Skewed X-chromosome inactivation (SXCI) was found in some apparently healthy females mainly from Western countries. It has been linked to development of ovarian, breast and pulmonary carcinomas. ...

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X chromosome inactivation revealed by the X linked lacZ transgene activity in periimplantation mouse embryos

X chromosome inactivation revealed by the X linked lacZ transgene activity in periimplantation mouse embryos

... X chromosome inactivation occurs first in the trophec- toderm of ...X- inactivation has been considered to be coupled with cell differen- tiation (Monk and Harper, ...

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Detailed analysis of X chromosome inactivation in a 49,XXXXX pentasomy

Detailed analysis of X chromosome inactivation in a 49,XXXXX pentasomy

... X chromosome inactivation is usually random [32], consequently to which every X chro- mosome may be inactivated in a given cell during early development; once inactivated, this state is stably main- tained ...

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Skewed X-chromosome inactivation in scleroderma.

Skewed X-chromosome inactivation in scleroderma.

... X-chromosome inactivation (6,7) have been proposed as the underlying pathophysiological mechanisms leading to the female prevalence of autoimmune ...X- inactivation mosaicism (12) have been shown to ...

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X chromosome inactivation in the cycle of life

X chromosome inactivation in the cycle of life

... X chromosome inactivation (XCI), which leads to mono-allelic expression of most X-linked ...X chromosome (Xp) is initiated in the female cleavage-stage embryo and is maintained in extra-embryonic ...

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X-chromosome inactivation, DNA methylation and imprinting

X-chromosome inactivation, DNA methylation and imprinting

... whole chromosome (Monk, 1986; Riggs, ...X- chromosome inactivation in female cells, many correlations between méthylation and X-linked gene function have been recorded (reviewed by Monk, ...

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A skewed view of X chromosome inactivation

A skewed view of X chromosome inactivation

... X chromosome inactivation involves a random choice to silence either X chromosome early in mammalian female ...X chromosome inactiva- tion is observed in a percentage of ...X chromosome ...

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Low RNA Binding Strength of Human X Chromosome May Explain X Chromosome Inactivation

Low RNA Binding Strength of Human X Chromosome May Explain X Chromosome Inactivation

... X chromosome in early embryonic development and all the daughter cells produced from these cells retain the same feature of X chromosome inactivation, which is called X chromosome ...

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X Chromosome Inactivation in Opioid Addicted Women

X Chromosome Inactivation in Opioid Addicted Women

... X chromosome inactivation (XCI), leads to gene dosage equivalence between females and males who have only one X chromosome (Pollex & Heard, ...X chromosome in each cell remains inacti- ...

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A new model for random X chromosome inactivation

A new model for random X chromosome inactivation

... X chromosome inactivation (XCI) is a process by which mammals reduce the number of active X chromosomes to one per diploid set of autosomes, thereby allowing for dosage equality between the ...the ...

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Meiotic sex chromosome inactivation

Meiotic sex chromosome inactivation

... X chromosome inactivation (XCI) (see Table ...X chromosome from which it is transcribed (termed acting in-cis) (Penny et ...X chromosome that induce gene silencing by catalysing methylation, ...

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The Evolution of Genomic Imprinting and X Chromosome Inactivation in Mammals

The Evolution of Genomic Imprinting and X Chromosome Inactivation in Mammals

... X chromosome dosage compensation in female eutherian ...X chromosome inactivation (XCI) and autosomal genomic imprinting that have long been noted ...Once inactivation was fixed on the X chro- ...

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An investigation into the role of sex chromosome synapsis in meiotic sex chromosome inactivation and fertility

An investigation into the role of sex chromosome synapsis in meiotic sex chromosome inactivation and fertility

... on chromosome XU with rDNA on multi-copy circular plasmids also disrupts checkpoint function, even though the plasmids form a ‘pseudonucleolus’ in which Pch2 is ...

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The role of X chromosome inactivation in female predisposition to autoimmunity

The role of X chromosome inactivation in female predisposition to autoimmunity

... X inactivation in the thymic dendritic cell population, a particular thymocyte might not come into contact with dendritic cells that express one of the two X ...X inactivation should only be directed at ...

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Carrier detection in X linked severe combined immunodeficiency based on patterns of X chromosome inactivation

Carrier detection in X linked severe combined immunodeficiency based on patterns of X chromosome inactivation

... X chromosome bearing the XSCID mutation was inactivated early in ...X inactivation pattern in XSCID carriers and their female ...X chromosome bearing the XSCID mutation was consistently ...X ...

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Mammalian X chromosome inactivation evolved as a dosage compensation mechanism for dosage sensitive genes on the X chromosome

Mammalian X chromosome inactivation evolved as a dosage compensation mechanism for dosage sensitive genes on the X chromosome

... XY chromosome evolution, be- cause males only have one copy of the X ...X chromosome global expression is about half the expression of autosomes in both male and female ...

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Nonrandom X Chromosome Inactivation Is Influenced by Multiple Regions on the Murine X Chromosome

Nonrandom X Chromosome Inactivation Is Influenced by Multiple Regions on the Murine X Chromosome

... background differences and tissues chosen for the analysis did not affect the outcome. However, there was a greater variance in gene expression measurements when tail RNA was used for the analysis instead of toe and ear ...

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Chromosome silencing mechanisms in X chromosome inactivation: unknown unknowns

Chromosome silencing mechanisms in X chromosome inactivation: unknown unknowns

... Xist-mediated chromosome silencing: first, that Xist produces a functional non-coding (nc) RNA that recruits factors required for heterochromatin formation; and second that the active Xist locus somehow ...

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REGULATION OF X-CHROMOSOME INACTIVATION IN MAMMALS

REGULATION OF X-CHROMOSOME INACTIVATION IN MAMMALS

... Experimental evidence demonstrates a strict parallel between heterochromatization and genetic inactivity; in general, as shown by conventional genetic markers (BROWN and WEI[r] ...

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