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Brain Res. 2006 Dec 18;1126(1):50-5. Epub 2006 Sep 7.

Sex differences in brain expression of X- and Y-linked genes.

Author information

1
Department of Pathology, University of Washington, Seattle, WA 98195, USA. junxu05@u.washington.edu

Abstract

The X chromosome plays an important role in brain development and function, as evidenced by its disproportionately high content of genes whose mutations cause mental retardation. These X-linked brain genes may play a role in sexual differentiation if they are expressed at a higher level in XX females than in XY males, due to incomplete X inactivation in females. The expression of several X escapee genes is indeed higher in brain tissues from females when compared to males. In mouse, some of the sex differences are only found in adult brains but not in other tissues. Determining the brain expression pattern of these X escapee genes is important for a better understanding of their role in the neurological phenotypes of XO Turner syndrome.

PMID:
16962077
DOI:
10.1016/j.brainres.2006.08.049
[Indexed for MEDLINE]

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