نتایج جستجو برای: oligozoospermia

تعداد نتایج: 482  

Journal: :medical journal of islamic republic of iran 0
h najmabadi from the welfare science and rehabilitation university (hn), tehran, iran; karimi-nejad pathology & genetic center (hn, ss, fs), tehran, iran; division of endocrinology, metabolism, and molecularmedicine (kk. wt, lr, an, mg, sb) and department of obstetrics and gynecology (bs), charles r.drew university of medicine and science, los angeles, ca, usa; department of obstetrics andgynecology, university of melbourne, australia; institute of reproduction and development (dmdk,rim. kal), monash university, melbourne, australia, and prince henry:s medical research institute (rimc), and karolinska institute, stokholm, sweden (s a). dm de kretser s arver w taylor c mallidis hw gorden baker

it is now agreed that 10-25% of infertile men with azoospermia have submicroscopic deletions of the y chromosome long ann (yq), consistent with the proposed location of the azoospermia locus (azf) in yq 11.23. however, it is not known whether yq microdeletions are unique to men with azoospermia or whether they are also observed in infertile men with less severe defects of spermatogenesis (oligo...

Journal: :Reproductive Medicine and Biology 2012

Journal: :Molecular human reproduction 1998
E Kanavakis M Tzetis T Antoniadi G Pistofidis S Milligos C Kattamis

Congenital bilateral absence of the vas deferens (CBAVD) found in otherwise healthy infertile males, is associated with a high incidence of mutated cystic fibrosis transmembrane conductance regulator (CFTR) alleles, and is considered a genital form of cystic fibrosis (CF). The CF gene may also be involved in the aetiology of male infertility in cases other than CBAVD. The present study was unde...

2013
Chuncheng Lu Miaofei Xu Ying Wang Yufeng Qin Guizhen Du Wei Wu Xiumei Han Chao Ji Yanli Yang Aihua Gu Yankai Xia Ling Song Shoulin Wang Xinru Wang

BACKGROUND The meiotic program initiation pathway genes (CYP26B1, NANOS1 and STRA8) have been proposed to play key roles in spermatogenesis. OBJECTIVE To elucidate the exact role of the genetic variants of the meiosis initiation genes in spermatogenesis, we genotyped the potential functional genetic variants of CYP26B1, NANOS1 and STRA8 genes, and evaluated their effects on spermatogenesis in...

2017
Antonio MacKenna Javier Crosby Cristián Huidobro Eduardo Correa Gonzalo Duque

OBJECTIVE The main objective of this study was to assess semen characteristics of patients with testicular cancer before cryopreservation and after thawing, to evaluate the consequences of this technique on sperm quality in patients with testicular cancer. METHODS Five hundred eighty-nine samples from 543 patients with testicular cancer were cryopreserved between 1995 and 2015, one aliquot pe...

ژورنال: مجله علمی پژوهان 2019

 Introduction: The CGA gene encodes alpha subunit of glycoprotein hormones that are involved in the fertility process. The aim of this study was to evaluate the relationship between glycoprotein hormones, alpha polypeptide (CGA)  rs6631A> T gene polymorphism with the risk of men with azoospermia or severe oligozoospermia. Methods:  This study was conducted in a case-control study on 200 bloo...

Journal: :Saudi medical journal 2010
Omar F Abdul-Rasheed Yahya Y Farid Ussama S Al-Nasiri

OBJECTIVE To evaluate seminal plasma coenzyme Q10 (CoQ10) levels and oxidative stress in patients with different types of male infertility. METHODS A case-control study was carried out in the Department of Chemistry and Biochemistry, College of Medicine, Al-Nahrain University, Baghdad, Iraq from the period of November 2004 to July 2006. Sixty patients with male infertility were recruited from...

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