[Y chromosome microdeletions in male infertility].
نویسندگان
چکیده
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 mapping of infertile men with Y microdeletions and proposed as candidates for the putative azoospermia factor. The precise function of these two gene families remains unclear. It is likely that additional Y-specific and autosomal genes will be implicated in other subsets of male infertility. Recognition of the association of Y deletions and other genetic defects with male infertility has implications for the diagnosis, treatment, and genetic counselling of infertile men, particularly those who are being considered for intracytoplasmic sperm injection.
منابع مشابه
Multiplex-Polymerase Chain Reaction for Detecting Microdeletions in The Azoospermia Factor Region of Y Chromosome in Iranian Couples with Non-Obstructive Infertility and Recurrent Pregnancy Loss
Objective Approximately 15 percent of couples are infertile. The male factor is responsible for approximately 50% of the cases. One of the main genetic factors playing a role in male infertility is Y chromosomal microdeletion within the proximal long arm of the Y chromosome (Yq11), named azoospermia factor (AZF) region. Recent studies have also demonstrated that there is a potential connection ...
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Background: Microdeletions of the long arm of the chromosome Y are the most common molecular genetic cause of severe infertility in men which affect three regions of AZFa, AZFb and AZFc (Azoospermia factor). These regions contain various genes involved in spermatogenesis. The effect of ethnicity on the patterns of Y chromosome microdeletions has not been extensively studied, particulary in Iran...
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Y chromosome microdeletions are the second genetic cause of male infertility. The incidence of Y chromosome microdeletions can vary considerably depending on several factors, including patient selection criteria, population composition, and diagnostic protocols. They are associated with spermatogenic failure and lead to azoospermia or oligozoospermia. The advance in assisted reproductive techno...
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متن کامل
Assessment of Correlation between Androgen Receptor CAG Repeat Length and Infertility in Infertile Men Living in Khuzestan, Iran
Background The androgen receptor (AR) gene contains a polymorphic trinucleotide repeat that encodes a polyglutamine tract in its N-terminal transactivation domain (NTAD). We aimed to find a correlation between the length of this polymorphic tract and azoospermia or oligozoospermia in infertile men living in Khuzestan, Iran. MaterialsAndMethods In this case-control study during two years till 20...
متن کاملThe prevalence of Y chromosome microdeletions in Pakistani infertile men
BACKGROUND Microdeletions of the azoospermia factor locus of the long arm of Y chromosome are an etiological factor of severe oligozoospermia or azoospermia. OBJECTIVE The aim of this study was to investigate the prevalence of Y-chromosome microdeletions in AZF region and their role in infertility in Pakistani population. MATERIALS AND METHODS The type of deletions in AZF locus were detecte...
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ورودعنوان ژورنال:
- Human fertility
دوره 1 1 شماره
صفحات -
تاریخ انتشار 1997