Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function

Turner's syndrome is a sporadic disorder of human females in which all or part of one X chromosome is deleted. Intelligence is usually normal but social adjustment problems are common. Here we report a study of 80 females with Turner's syndrome and a single X chromosome, in 55 of which the...

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Main Authors: Skuse, D, James, R, Bishop, D, Coppin, B, Dalton, P, Aamodt-Lepper, G, Bacarese-Hamilton, M, Cresswell, C, McGurk, R, Jacobs, P
Format: Journal article
Published: Nature Publishing Group 1997
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author Skuse, D
James, R
Bishop, D
Coppin, B
Dalton, P
Aamodt-Lepper, G
Bacarese-Hamilton, M
Cresswell, C
McGurk, R
Jacobs, P
author_facet Skuse, D
James, R
Bishop, D
Coppin, B
Dalton, P
Aamodt-Lepper, G
Bacarese-Hamilton, M
Cresswell, C
McGurk, R
Jacobs, P
author_sort Skuse, D
collection OXFORD
description Turner's syndrome is a sporadic disorder of human females in which all or part of one X chromosome is deleted. Intelligence is usually normal but social adjustment problems are common. Here we report a study of 80 females with Turner's syndrome and a single X chromosome, in 55 of which the X was maternally derived (45,Xm) and in 25 it was of paternal origin (45,Xp). Members of the 45,Xp group were significantly better adjusted, with superior verbal and higher-order executive function skills, which mediate social interactions. Our observations suggest that there is a genetic locus for social cognition, which is imprinted and is not expressed from the maternally derived X chromosome. Neuropsychological and molecular investigations of eight females with partial deletions of the short arm of the X chromosome indicate that the putative imprinted locus escapes X-inactivation, and probably lies on Xq or close to the centromere on Xp. If expressed only from the X chromosome of paternal origin, the existence of this locus could explain why 46,XY males (whose single X chromosome is maternal) are more vulnerable to developmental disorders of language and social cognition, such as autism, than are 46,XX females.
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spelling oxford-uuid:b45819a1-50b2-41aa-957c-e1f54736b3352022-03-27T04:25:26ZEvidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive functionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b45819a1-50b2-41aa-957c-e1f54736b335Symplectic Elements at OxfordNature Publishing Group1997Skuse, DJames, RBishop, DCoppin, BDalton, PAamodt-Lepper, GBacarese-Hamilton, MCresswell, CMcGurk, RJacobs, PTurner's syndrome is a sporadic disorder of human females in which all or part of one X chromosome is deleted. Intelligence is usually normal but social adjustment problems are common. Here we report a study of 80 females with Turner's syndrome and a single X chromosome, in 55 of which the X was maternally derived (45,Xm) and in 25 it was of paternal origin (45,Xp). Members of the 45,Xp group were significantly better adjusted, with superior verbal and higher-order executive function skills, which mediate social interactions. Our observations suggest that there is a genetic locus for social cognition, which is imprinted and is not expressed from the maternally derived X chromosome. Neuropsychological and molecular investigations of eight females with partial deletions of the short arm of the X chromosome indicate that the putative imprinted locus escapes X-inactivation, and probably lies on Xq or close to the centromere on Xp. If expressed only from the X chromosome of paternal origin, the existence of this locus could explain why 46,XY males (whose single X chromosome is maternal) are more vulnerable to developmental disorders of language and social cognition, such as autism, than are 46,XX females.
spellingShingle Skuse, D
James, R
Bishop, D
Coppin, B
Dalton, P
Aamodt-Lepper, G
Bacarese-Hamilton, M
Cresswell, C
McGurk, R
Jacobs, P
Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title_full Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title_fullStr Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title_full_unstemmed Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title_short Evidence from Turner's syndrome of an imprinted X-linked locus affecting cognitive function
title_sort evidence from turner s syndrome of an imprinted x linked locus affecting cognitive function
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