Results 51 to 60 of about 35,229 (220)

Genetic and sex hormone analysis of infertile men

open access: yesJournal of International Medical Research, 2020
Objective Genetic defects and endocrine-related factors are the leading causes of male infertility. This study was performed to analyze the genetic characteristics and sex hormone levels in different types of male infertility.
Xiaolei Xie   +5 more
doaj   +1 more source

Hormonal Treatment of Men with Nonobstructive Azoospermia: What Does the Evidence Suggest?

open access: yesJournal of Clinical Medicine, 2021
Hormonal stimulation of spermatogenesis prior to surgery has been tested by some authors to maximize the sperm retrieval yield in patients with nonobstructive azoospermia.
E. Caroppo, G. Colpi
semanticscholar   +1 more source

Cellular Therapy via Spermatogonial Stem Cells for Treating Impaired Spermatogenesis, Non-Obstructive Azoospermia

open access: yesCells, 2021
Male infertility is a major health problem affecting about 8–12% of couples worldwide. Spermatogenesis starts in the early fetus and completes after puberty, passing through different stages.
Nesma Abdelaal   +7 more
semanticscholar   +1 more source

Sperm retrieval techniques in azoospermic patients: PESA, MESA, TESA, TESE and MICROTESE [PDF]

open access: yesEinstein (São Paulo), 2009
Azoospermia is defined as the absence of mature spermatozoa in semen analysis after centrifugation. The causes of azoospermia may be related to spermatogenesis defects and classified as non-obstructive azoospermia, or to the obstruction of the efferent ...
Marcelo Vieira, Sidney Glina
doaj  

Sperm recovery and ICSI outcomes in men with non-obstructive azoospermia: a systematic review and meta-analysis.

open access: yesHuman Reproduction Update, 2019
BACKGROUND Factor affecting sperm retrieval rate (SRR) or pregnancy rates (PR) after testicular sperm extraction (TESE) in patients with non-obstructive azoospermia (NOA) have not been systematically evaluated.
G. Corona   +18 more
semanticscholar   +1 more source

Building families—Implementing balanced sexual and reproductive health

open access: yesInternational Journal of Gynecology &Obstetrics, EarlyView.
Abstract One of the main initiatives of the World Health Organization (WHO) is the promotion of Sexual and Reproductive Health (SRH). Sexuality, infertility, and contraception are three interconnected pillars of SRH, each essential for achieving global equity in family planning and family building.
Peter Y. Liu   +9 more
wiley   +2 more sources

Testicular cytology in azoospermia [PDF]

open access: yes, 2017
Background: Male infertility is a common problem and needs a minimally invasive method to arrive at the appropriate diagnosis. Alternative to open testicular biopsy the fine needle aspiration cytology of the testis is being increasingly used as a ...
Prasad, Uma, Prasad, Usha
core   +1 more source

Identification of spermatogonial stem cell-like cell differentiation in vitro from azoospermia patient using modified human embryonic stem cell (HESC) media [PDF]

open access: yes, 2015
Background:Spermatogenesis is a process where proliferation and differentiation of spermatogonial stem cell (SSC) into haploid sperm cells in the testis.
Ramli, Roszaman   +2 more
core   +1 more source

Analysis of Y Chromosome Microdeletions and Mutation in Exon7 of the STAG3 Gene in Iranian Infertile Men with Idiopathic Non-Obstructive Azoospermia [PDF]

open access: yesMajallah-i dānishgāh-i ̒ulūm-i pizishkī-i Arāk, 2016
Background: Azoospermia is defined as the absence of sperm in the semen and is divided in two types; obstructive and non-obstructive azoospermia. Non-obstructive azoospermia include approximately 60% of azoospermia patients.
Sara Pouriamanesh   +5 more
doaj  

Sperm recovery and IVF after testicular sperm extraction (TESE): effect of male diagnosis and use of off-site surgical centers on sperm recovery and IVF. [PDF]

open access: yesPLoS ONE, 2013
Determine whether testicular sperm extractions and pregnancy outcomes are influenced by male and female infertility diagnoses, location of surgical center and time to cryopreservation.One hundred and thirty men undergoing testicular sperm extraction and ...
Kenan Omurtag   +6 more
doaj   +1 more source

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