نتایج جستجو برای: unexplained male infertility

تعداد نتایج: 361991  

Journal: :East African medical journal 2006
U Larsen G Masenga J Mlay

BACKGROUND Previous research on the aetiology of infertility in sub-Saharan Africa was generally clinic based and it is not known whether findings from this work are representative of the general population. A better understanding of the medical causes of infertility is crucial for reducing the incidence of infertility and for improving the clinical management. OBJECTIVE To determine the type...

Ahmad Reza Baghestani Elham Amirchaghmaghi Fahimeh Kashfi Hossein Kashani Mohammad Kamali, Shahram Tavajohi

Background Infertility is defined as failure in pregnancy after one year of unprotected intercourse. Several centers have reported different causes of infertility. The most common causes of infertility are: male factor such as sperm disturbance, female factor such as ovulation dysfunction and tubal factor, both male and female factor, and unexplained infertility .The aim of this study was to su...

2013
Hossein Pashaiefar Mohammad Hasan Sheikhha Seyyed Mehdi Kalantar Tahereh Jahaninejad Mohammad Ali Zaimy Nasrin Ghasemi

BACKGROUND Meiotic genes are very important candidates for genes contributing to female and male infertility. Mammalian MutL homologues have dual roles in DNA mismatch repair (MMR) after replication errors and meiotic reciprocal recombination. The MutL homologs, MLH1 and MLH3, are crucial for meiotic reciprocal recombination and human fertility. In this study the functional polymorphisms of MLH...

Journal: :Human reproduction 2001
Z Pandian S Bhattacharya A Templeton

BACKGROUND Increased maternal and fetal risks have been reported in pregnancies following unexplained infertility. Our aims were to examine the obstetric and perinatal outcome of singleton pregnancies in couples with unexplained infertility and explore the impact of fertility treatment. METHODS Women with unexplained infertility were identified from the Aberdeen Fertility Clinic Database. The...

Journal: :Best Practice & Research Clinical Obstetrics & Gynaecology 2012

2018
Mehran Dorostghoal Hamid-o-allah Ghaffari Farideh Moramezi Narjes Keikhah

Background Failure in the endometrial receptivity may account for a significant number of infertility cases including unexplained infertility in women. Reduction in the endometrial estrogen receptor-alpha (ER-α) expression during implantation may be a critical event that coincides with the expression of specific genes and the formation of a receptive endometrium. The aim of the present study wa...

Journal: :Physiological research 2004
L Radojcić S Marjanović L Vićovac M Kataranovski

Concept of autoimmune basis of infertility is still controversial, particularly regarding the presence of non-organ specific autoantibodies. Non-organ specific anticardiolipin (aCL) and antithyroglobulin (TgAt) antibodies were detected in infertile women. Both partners were evaluated according to the criteria of The American Society for Reproductive Medicine. All the results were normal in case...

2009
Shirin Ghazizadeh Maryam Bagheri

Background: To assess the usefulness of premature luteinization hormone (LH) surge prevention in an intrauterine insemination (IUI) cycle by GnRH antagonist administration. Materials and Methods: Sixty patients with unexplained or mild male infertility or minimal to mild endometriosis were enrolled in this prospective randomized controlled trial. There were twenty patients in group A (with GnRH...

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