نتایج جستجو برای: uniparental disomy
تعداد نتایج: 1450 فیلتر نتایج به سال:
Silver-Russell syndrome (SRS) is characterised by intrauterine and postnatal growth failure accompanied by a variable number of dysmorphic features. It is usually sporadic although a few familial cases have been described. In a prospective study of 33 patients with sporadic SRS, we have studied the parent of origin of chromosome 7 using variable number tandem repeat (VNTR) or microsatellite rep...
Sixteen newly established cell lines with small supernumerary marker chromosomes (sSMC) derived from chromosomes 1, 2, 4, 6, 7, 8, 14, 15, 16, 18, 19, 21, and 22 are reported. Two sSMC are neocentric and derived from 15q24.1-qter and 2q35-q36, respectively. Two further cases each present with two sSMC of different chromosomal origin. sSMC were characterized by multicolor fluorescence in situ hy...
Congenital adrenal hyperplasia (CAH) due to 21-hydroxylase deficiency results in excess androgen production which can lead to early epiphyseal fusion and short stature. Prader-Willi syndrome (PWS) is a genetic disorder resulting from a defect on chromosome 15 due to paternal deletion, maternal uniparental disomy, or imprinting defect. Ninety percent of patients with PWS have short stature. In t...
We report a new lethal multiple congenital abnormality (MCA) syndrome of exomphalos, short limbs, nuchal web, macrogonadism, and facial dysmorphism in seven fetuses (six males and one female) belonging to three unrelated families. X rays showed enlarged and irregular metaphyses with a heterogeneous pattern of mineralisation of the long bones. Pathological examination showed adrenal cytomegaly, ...
A patient with Angelman syndrome and a 46,XY/47,XY,+inv dup(15)(pter-->q11: q11-->pter) karyotype and a patient with Prader-Willi syndrome and a 46,XY/47,XY,+inv dup(15)(pter-->q12: q12-->pter) karyotype were investigated with molecular markers along chromosome 15. Paternal uniparental isodisomy was found for all informative markers in the first case which indicates that this, rather than the p...
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