title: Novel X-chromosomal defect associated with abnormal ovarian function.
abstract: Abstract Premature ovarian failure (POF) may be idiopathic or may be associated with genetic or autoimmune disorders. It is well known that chromosomal defects can impair ovarian development and its function. It is estimated that X-chromosome abnormalities occur in 10-25% of women with abnormal ovarian function. Of these, the common chromosome defects reported are either true Turner's karyotype or its variants. We describe a novel X-chromosome aberration in a woman with primary amenorrhea. Cytogenetic and fluorescence in situ hybridization analysis revealed a short-arm deletion of X-chromosome as a Turner's variant [mos,45,XO/46,Xdel(X)(p11.1-p22.3)]. This interesting and rare case with unique X-chromosome defect reveals an additional mechanism for the cause of POF.
authors.affiliation: Centre for Cellular and Molecular Biology, Hyderabad, India.
authors.forename: Lakshmi
authors.initials: L
authors.lastname: Rao
authors.forename: Arvind
authors.initials: A
authors.lastname: Babu
authors.forename: Venkata
authors.initials: V
authors.lastname: Padmalatha
authors.forename: Murthy
authors.initials: M
authors.lastname: Kanakavalli
authors.forename: Mamata
authors.initials: M
authors.lastname: Deenadayal
authors.forename: Lalji
authors.initials: L
authors.lastname: Singh
mesh_terms: D000328:Adult; D002869:Chromosome Aberrations; D041321:Chromosomes, Human, X / Q000235:genetics*; D005260:Female; D006801:Humans; D017404:In Situ Hybridization, Fluorescence; D016649:Primary Ovarian Insufficiency / Q000235:genetics*