نتایج جستجو برای: azfa

تعداد نتایج: 158  

Journal: :international journal of reproductive biomedicine 0
mohammad ali zaimy seyyed mehdi kalantar mohammad hasan sheikhha tahere jahaninejad hossein pashaiefar jalal ghasemzadeh

background: about 15% of couples have infertility problems which 40% of them are related to the male factors. genetic factors are candidate for about 10% of male infertility conditions. among these, azfa, azfb, azfc and azfd regions on the yq are considered most important for spermatogenesis. microdeletions of these regions are thought to be involved in some cases of azoospermic or oligospermic...

Journal: :Molecular human reproduction 1998
P H Vogt

Human chromosome deletions in Yq11 seem to occur frequently as de novo mutation events in men with idiopathic azoospermia or severe oligozoospermia. However, the molecular extensions of these deletions are variable. They can be large and therefore visible under the microscope or small, not visible under the microscope, and containing the deletion of one or more DNA loci recently mapped in an ap...

Journal: :Annales de biologie clinique 2014
Wajih Hammami Olfa Kilani Mariem Ben Khelifa Wiem Ayed Sonia Abdelhak Abderrezzak Bouzouita Fethi Zhioua Ahlem Amouri

Yq microdeletions are the leading genetic cause of male infertility and its detection in clinically relevant for appropriate genetic counseling. The objective of this study was to determine the frequency of Y microdeletion in a group of Tunisian infertile men and to compare the prevalence of these abnormalities with other countries and other Tunisian reported series. Totally, 105 Tunisian idiop...

2017
Delnya Gholami Hamideh Jafari-Ghahfarokhi Maryam Nemati-Dehkordi Hossien Teimori

Background Genetic factors are candidates for about 30% of male infertility with sperm production-related abnormalities. Y chromosome microdeletions are responsible for around 10% of male infertility. These microdeletions generally occur in azoospermia factor on the Yq. That is often associated with the quantitative reduction of sperm. Objective The aim of this cross-sectional study was to de...

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