Mosaic maternal uniparental disomy of chromosome 11 in a patient with Silver-Russell syndrome

被引:57
作者
Bullman, H. [1 ]
Lever, M. [1 ]
Robinson, D. O. [1 ,2 ]
Mackay, D. J. G. [1 ,2 ]
Holder, S. E. [3 ]
Wakeling, E. L. [3 ]
机构
[1] Salisbury Dist Hosp, Wessex Reg Genet Lab, Salisbury SP2 8BJ, Wilts, England
[2] Univ Southampton, Div Human Genet, Southampton, Hants, England
[3] Kennedy Galton Ctr, N W Thames Reg Genet Serv, Northwick Pk & St Marks NHS Trust, Harrow, Middx, England
关键词
D O I
10.1136/jmg.2007.057059
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
Silver-Russell syndrome (SRS) is a clinically heterogeneous disorder characterised mainly by intrauterine and postnatal growth retardation. While maternal uniparental disomy of chromosome 7 is found in 5-10% of SRS patients, recently genetic and epigenetic mutations affecting the imprinting centres on chromosome 11p15 have been reported in up to 64% of patients. Chromosome 11p15 abnormalities reported in SRS include methylation defects in the imprinting centre 1 (ICR1) and maternally inherited duplications involving all or part of the imprinted region of 11p15. Here we report the first published case of SRS with mosaic maternal uniparental disomy of chromosome 11.
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页码:396 / 399
页数:4
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