نتایج جستجو برای: chromosome microdeletions introduction

تعداد نتایج: 492961  

Journal: :Yeni üroloji dergisi 2021

Objective: Advances in the science of genetics and development assisted reproductive techniques focus on genetic causes infertility. The aim this research is to reveal abnormalities terms sex chromosome aneuploidy Y microdeletions. Material Methods: A total 350 patients with azoospermia or severe oligozoospermia were selected. After general examination laboratory investigations performed, carto...

Journal: :journal of paramedical sciences 0
farhad shaveisi-zadeh department of medical genetics, school of medicine, shahid beheshti university of medical sciences, tehran, iran kimia davarian department of medical genetics, school of medicine, shahid beheshti university of medical sciences, tehran, iran abolfazl movafagh department of medical genetics, school of medicine, shahid beheshti university of medical sciences, tehran, iran reza mirfakhraie molecular pathology research center, imam reza hospital, kermanshah university of medical sciences, kermanshah, iran zahra rostami-far department of biochemistry, school of medicine, kermanshah university of medical sciences, kermanshah, iran reza alibakhshi department of biochemistry, school of medicine, kermanshah university of medical sciences, kermanshah, iran.

about 15% of couples have infertility problems, half of which are related to male factors. cytogenetic and genetic disorders account for about 10% of the male infertility problems. the aim of this study was to determine the frequency and types of both cytogenetic abnormalities and azf microdeletions of y chromosome in idiopathic azoospermic and oligospermic infertile men in west of iran. in thi...

2014
Fadlalla Elfateh Dai Rulin Yun Xin Li Linlin Zhu Haibo Rui-Zhi Liu

BACKGROUND In some cases infertile men showed small deletions of specific genes in the Y chromosome. It had been confirmed, these deleted genes are greatly associated with spermatogenic failure. However, the frequency and the patterns of such microdeletions among infertile men are not clearly clarified. OBJECTIVE We sought to determine the frequency and the patterns of Y chromosome microdelet...

2015
Atefeh Biabangard zak Masoud Golalipour Gholamreza Hadadchi

BACKGROUND Microdeletions of the Y chromosome are one of the most frequent genetic causes of spermatogenic failure in infertile men. But their role in gaining weight is unclear. The present study investigated the possible association of these partial microdeletions and obesity. METHODS In a case-control study, 180 males were selected. The prevalence of microdeletions was assessed using PCR in...

2017

About 30–40% of male infertility is due to unknown reasons. Genetic contributions to the disruption of spermatogenesis are suggested and amongst the genetic factors studied, Y chromosome microdeletions represent the most common one. Screening for microdeletions in AZFa, b and c region of Y chromosome showed a big variation among different studies. The purpose of this study was to investigate th...

2017

About 30–40% of male infertility is due to unknown reasons. Genetic contributions to the disruption of spermatogenesis are suggested and amongst the genetic factors studied, Y chromosome microdeletions represent the most common one. Screening for microdeletions in AZFa, b and c region of Y chromosome showed a big variation among different studies. The purpose of this study was to investigate th...

Journal: :Genetics and molecular research : GMR 2010
C Ceylan G G Ceylan T A Serel

We looked for a possible association between Klinefelter syndrome (KFS) and microdeletions in the Y chromosome in Turkish KFS patients. We examined the frequency of KFS in male patients with proven non-obstructive azoospermia and the types of Y chromosome microdeletions in these KFS patients. Fifty azoospermic patients and 50 fertile men were included in this study. KFS was found in 14 azoosper...

Journal: :Asian journal of andrology 2006
Anurag Mitra Rima Dada Rajeev Kumar Narmada Prasad Gupta Kiran Kucheria Satish Kumar Gupta

AIM To study the occurrence of Y chromosome microdeletions in azoospermic patients with Klinefelter's syndrome (KFS). METHODS Blood and semen samples were collected from azoospermic patients with KFS (n = 14) and a control group of men of proven fertility (n = 13). Semen analysis was done according to World Health Organization (WHO) guidelines. Blood samples were processed for karyotyping, fl...

2017

About 30–40% of male infertility is due to unknown reasons. Genetic contributions to the disruption of spermatogenesis are suggested and amongst the genetic factors studied, Y chromosome microdeletions represent the most common one. Screening for microdeletions in AZFa, b and c region of Y chromosome showed a big variation among different studies. The purpose of this study was to investigate th...

Journal: :Journal of Experimental & Clinical Assisted Reproduction 2006
Ali Hellani Saad Al-Hassan Muhammed A Iqbal Serdar Coskun

About 30-40% of male infertility is due to unknown reasons. Genetic contributions to the disruption of spermatogenesis are suggested and amongst the genetic factors studied, Y chromosome microdeletions represent the most common one. Screening for microdeletions in AZFa, b and c region of Y chromosome showed a big variation among different studies. The purpose of this study was to investigate th...

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