نتایج جستجو برای: unexplained male infertility

تعداد نتایج: 361991  

Journal: :Environmental Health Perspectives 2003

Journal: :JBRA Assisted Reproduction 2013

2013
Mohammad Ebrahim Parsanezhad Nasrin Dadras Najmeh Maharlouei Leila Neghahban Peghah Keramati Madihe Amini

BACKGROUND Unexplained infertility is still a challenging issue as to its causes, appropriate management and treatment. Evidence implicates early embryopathy or implantation failure as likely causes. OBJECTIVE This study aims to investigate the effect of local endometrial injury on pregnancy rate in selected unexplained infertile patients. MATERIALS AND METHODS This was a randomized clinica...

Journal: :Reproduction 2015
Chencheng Yao Yun Liu Min Sun Minghui Niu Qingqing Yuan Yanan Hai Ying Guo Zheng Chen Jingmei Hou Yang Liu Zuping He

Spermatogenesis is composed of three distinctive phases, which include self-renewal of spermatogonia via mitosis, spermatocytes undergoing meiosis I/II and post-meiotic development of haploid spermatids via spermiogenesis. Spermatogenesis also involves condensation of chromatin in the spermatid head before transformation of spermatids to spermatozoa. Epigenetic regulation refers to changes of h...

Journal: :Tropical Journal of Obstetrics and Gynaecology 2002

2017
Willem Ombelet

According to a number of high quality studies intrauterine insemination (IUI) with homologous semen should be the first choice treatment in case of unexplained and moderate male factor subfertility. IVF and ICSI are clearly over-used in this selected group of infertile couples. The limited value of IUI in infertility treatment as mentioned in the 2013 NICE guidelines was surely a premature stat...

Journal: :Evidence Based Women's Health Journal 2020

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