An excess of chromosome 1 breakpoints in male infertility
نویسندگان
چکیده
منابع مشابه
Y chromosome and male infertility.
Recent genome analysis of the Y chromosome has increased the number of genes found on this chromosome markedly. Many of these genes in the part of the Y chromosome that does not undergo recombination with the X chromosome are members of gene families. Evolutionary considerations imply that genes on the Y chromosome will degenerate unless they have male advantageous or female deleterious functio...
متن کامل[Y chromosome microdeletions in male infertility].
A genetic basis of infertility may exist in many men currently classified as having idiopathic infertility. Approximately 7% of infertile men harbour submicroscopic deletions of the Y chromosome that are not detectable on routine karyotype. Two candidate gene families, namely the RNA-binding motif-containing gene family, and the deleted-in-azoospermia gene family, have been cloned by deletion m...
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As you know, for penile erection, a sufficient amount of testosterone-induced nitric oxide is needed in the smooth muscle of the penile arterial wall. With aging, LOH syndrome and so on, the serum testosterone level decreases, resulting in a decline of penile erectile function. Furthermore, it is known that the enzyme PDE5 in the penile artery wall also inhibits that function. Even so, it may b...
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Male factor is the sole reason or a component for infertility in 20 and 30% of cases respectively. The management of the disease may be via medical or surgical treatment. The surgical approach is classified as techniques which improves sperm production and delivery in order to achieve spontaneous pregnancy or sperm retrieval techniques prior to assisted reproductive techniques (ART). Varicocele...
متن کاملThe role of Y chromosome deletions in male infertility.
Male infertility affects approximately 2-7% of couples around the world. Over one in ten men who seek help at infertility clinics are diagnosed as severely oligospermic or azoospermic. Recent extensive molecular studies have revealed that deletions in the azoospermia factor region of the long arm of the Y chromosome are associated with severe spermatogenic impairment (absent or severely reduced...
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ژورنال
عنوان ژورنال: European Journal of Human Genetics
سال: 2004
ISSN: 1018-4813,1476-5438
DOI: 10.1038/sj.ejhg.5201263