A rare case of de novo balanced reciprocal Y:1 chromosomal translocation in patient presenting with azoospermia. 2019

Afreen Aftab, and Thankam R Varma, and Bibhas Kar
Center for Genetic Studies and Research, The Madras Medical Mission, Chennai, India.

Presence of chromosomal anomalies is well known to be associated with reproductive failures where the incidence of chromosomal translocations is higher. Y:1 chromosomal translocations are reported to be rare and may have variable phenotypic effects such as infertility amongst others. The patient presented with azoospermia and dyslipidemia and coronary arterial disease. Cytogenetic tests such as karyotyping revealed the translocation, and fluorescent in situ hybridisation was performed to investigate the presence or absence of SRY gene. The SRY gene was found to be located on the p arm of the derivative Y chromosome. The test for Y chromosome microdeletions was reported to be negative for the AZF gene regions tested. Here we report the first case of Y:1 chromosomal translocation involving the break points (q11.2;p21) from India.

UI MeSH Term Description Entries
D007194 India A country in southern Asia, bordering the Arabian Sea and the Bay of Bengal, between Burma and Pakistan. The capitol is New Delhi. Republic of India
D007621 Karyotyping Mapping of the KARYOTYPE of a cell. Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D008297 Male Males
D010375 Pedigree The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition. Family Tree,Genealogical Tree,Genealogic Tree,Genetic Identity,Identity, Genetic,Family Trees,Genealogic Trees,Genealogical Trees,Genetic Identities,Identities, Genetic,Tree, Family,Tree, Genealogic,Tree, Genealogical,Trees, Family,Trees, Genealogic,Trees, Genealogical
D002878 Chromosomes, Human, Pair 1 A specific pair of human chromosomes in group A (CHROMOSOMES, HUMAN, 1-3) of the human chromosome classification. Chromosome 1
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014178 Translocation, Genetic A type of chromosome aberration characterized by CHROMOSOME BREAKAGE and transfer of the broken-off portion to another location, often to a different chromosome. Chromosomal Translocation,Translocation, Chromosomal,Chromosomal Translocations,Genetic Translocation,Genetic Translocations,Translocations, Chromosomal,Translocations, Genetic
D053713 Azoospermia A condition of having no sperm present in the ejaculate (SEMEN).
D041322 Chromosomes, Human, Y The human male sex chromosome, being the differential sex chromosome carried by half the male gametes and none of the female gametes in humans. Y Chromosome, Human,Chromosome, Human Y,Chromosomes, Human Y,Human Y Chromosome,Human Y Chromosomes,Y Chromosomes, Human

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