Results 41 to 50 of about 3,756 (234)
Prevalence of Y chromosome deletions in a Brazilian population of nonobstructive azoospermic and severely oligozoospermic men [PDF]
, 2003 We determined the prevalence of Y chromosome deletions in a population of 60 Brazilian nonobstructive azoospermic and severely oligozoospermic men. PCR-based screening of microdeletions was performed on lymphocyte DNA for the presence of 14 sequence ...
Avellar, Maria Christina Werneck +6 more
core +2 more sources
Journal of Urological Surgery, 2017 EDITORIAL COMMENT This study evaluated 72 studies to answer the question how varicocele repair (VR) impacts pregnancy rates and live birth rates in infertile couples undergoing assisted reproduction wherein the male partner has oligospermia or ...
Emre Bakırcıoğlu
doaj +1 more source
Nonobstruktif azospermi olgularında yeni yaklaşımlar [PDF]
, 2019 Azospermi semende hiç sperm bulunamaması durumudur. Obstrüktif ve nonobstrüktif olmak üzere iki kategoriye ayrılır. Azospermi tanısı alan hastalardan elde edilen spermatozoayla, ilk gebelik ICSI (intrasitoplazmik sperm enjeksiyonu) işlemiyle 1993 ...
Özer, Mehmet Caner +1 more
core +1 more source
Surgical management of nonobstructive azoospermia
Asian Journal of Urology, 2015 Nonobstructive azoospermia (NOA) is characterized by the complete absence of sperm in the ejaculate due to testicular failure. The evaluation and management of patients with NOA offer a challenge to the reproductive urologist. In the era of in vitro fertilization with intracytoplasmic sperm injection, surgical sperm extraction techniques can afford men
Tiseo, Bruno Camargo +2 more
openaire +3 more sources
Sperm retrieval rate and pregnancy rate in infertile couples undergoing in-vitro fertilisation and testicular sperm extraction for non-obstructive azoospermia in Hong Kong [PDF]
, 2016 published_or_final_versio
Chai, J +9 more
core +1 more source
Shared genetics between nonobstructive azoospermia and primary ovarian insufficiency [PDF]
F&S Reviews, 2021 Primary ovarian insufficiency (POI) and Non-obstructive azoospermia (NOA) both represent disease states of early, and often complete, failure of gametogenesis. Because oogenesis and spermatogenesis share the same conserved steps in meiosis I, it is possible that inherited defects in meiosis I could lead to shared causes of both POI and NOA.
Lauren Verrilli +3 more
openaire +2 more sources
Taiwanese Journal of Obstetrics & Gynecology, 2015 Objective: To evaluate and compare the clinical outcomes and development of children born between obstructive azoospermia (OA) couples and nonobstructive azoospermia couples (NOA) after testicular sperm extraction (TESE) and intracytoplasmic sperm ...
Yi-Ru Tsai +5 more
doaj +1 more source
Whole-genome sequencing identifies new candidate genes for nonobstructive azoospermia. [PDF]
Andrology, 2022 AbstractBackgroundGenetic causes that lead to spermatogenetic failure in patients with nonobstructive azoospermia (NOA) have not been yet completely established.ObjectiveTo identify low‐frequency NOA‐associated single nucleotide variants (SNVs) using whole‐genome sequencing (WGS).Materials and methodsMen with various types of NOA (n= 39), including ...
Malcher A +9 more
europepmc +5 more sources
Infertility and hypergonadotropic hypogonadism as first evidence of hereditary apolipoprotein A-I amyloidosis [PDF]
, 2007 Purpose: We report that primary infertility and hypergonadotropic hypogonadism in young patients may be caused by testicular amyloidosis and it is associated with the presence of a mutation in the apoA-I gene, resulting in the replacement of proline for ...
BIASI L +7 more
core +1 more source
Journal of Human Reproductive Sciences, 2021 Background: Primary infertility is a common occurrence which affects approximately 15% of couples who desire to begin their family. Chromosomal abnormalities are well-established causes of pregnancy loss but may also have a role in explaining the cause ...
Paresh Singhal +5 more
doaj +1 more source