Results 71 to 80 of about 3,756 (234)

Successful fertilization and embryo development after spermatid injection: A hope for nonobstructive azoospermic patients

open access: yesJournal of Human Reproductive Sciences, 2015
Spermatids are the earliest male germ cells with haploid set of chromosomes. Spermatid injection was introduced in human assisted reproduction for the treatment of men with non-obstructive azoospermia.
Geeta Goswami   +2 more
doaj   +1 more source

A WHO 2021‐based comprehensive scheme outlining sperm parameters’ associations with IVF outcomes in PGT‐A cycles

open access: yesAndrology, Volume 13, Issue 7, Page 1745-1756, October 2025.
Abstract Objective To examine the association between semen parameters, assessed according to World Health Organization (WHO)‐2021 criteria, and paternal body mass index (BMI) and age, with embryological and clinical outcomes in ICSI cycles involving preimplantation genetic testing for aneuploidy (PGT‐A).
Rossella Mazzilli   +16 more
wiley   +1 more source

Focus Issue on Male Infertility

open access: yesAdvances in Urology, 2012
Male infertility problems can occur when sperms are limited in number or function. In this paper, we describe the clinical evaluation of male infertility. A detailed history, physical examination, and basic semen analysis are required.
Hideyuki Kobayashi   +2 more
doaj   +1 more source

Serum FSH levels and testicular histology in infertile men with non obstructive azoospermia and Y chromosome microdeletions

open access: yesIndian Journal of Urology, 2006
Objectives: Men with nonobstructive azoospermia may father a child through intracytoplasmic injection of testicular sperms. This can result in transmission of genetic defects such as Y chromosome microdeletions which primarily caused the infertility and ...
Rajeev Kumar   +3 more
doaj   +1 more source

Correlation of serum FSH and rate of testicular sperm retrieval in non-obstructive azoospermia

open access: yesIndian Journal of Endocrinology and Metabolism, 2023
Background: Sperm retrieval from men with azoospermia has evolved in recent times, providing patient hope for fulfilling their dream of having their own genetic child through testicular sperm extraction followed by intracytoplasmic sperm injection (TESE ...
Kaberi Banerjee   +2 more
doaj   +1 more source

Mutations in SOHLH1 gene associate with nonobstructive Azoospermia

open access: yesHuman Mutation, 2010
In a previous study, we found SOHLH1 (spermatogenesis and oogenesis-specific basic helix-loop-helix 1) as the first testis-specific basic helix-loop-helix transcription factor essential for spermatogonial differentiation. SOHLH1 therefore represents an excellent candidate gene for testicular failure such as nonobstructive azoospermia (NOA). We analyzed
Youngsok, Choi   +14 more
openaire   +3 more sources

Compound Heterozygous Variants in ZSWIM7 Gene Linked to Infertility and Its Role in Gonadal Development

open access: yesAmerican Journal of Medical Genetics Part A, Volume 197, Issue 9, September 2025.
ABSTRACT This study aims to elucidate the role of the ZSWIM7 gene in the etiology of infertility, focusing on its potential association with premature ovarian insufficiency and azoospermia. We investigated an 18‐year‐old female patient who presented with primary amenorrhea, hypoplasia of the uterus and ovaries, Tanner stage II breast and pubic hair ...
Denise M. Christofolini   +8 more
wiley   +1 more source

Pre-biopsy modelling of condition of germinogenic epithelium in azoospermia using endocrine and genetic predictors

open access: yesВестник хирургии имени И.И. Грекова, 2017
OBJECTIVE. The study revealed clinical, endocrine and genetical predictors of safety of spermatogenic epithelium in patients with nonobstructive azoospermia. MATERIAL AND METHODS.
S. Yu. Borovets   +2 more
doaj   +1 more source

Mutational analysis of the GATA4 gene in Chinese men with nonobstructive azoospermia

open access: yesAsian Journal of Andrology, 2021
As a crucial transcription factor for spermatogenesis, GATA-binding protein 4 (GATA4) plays important roles in the functioning of Sertoli and Leydig cells.
Xu Zhang   +8 more
doaj   +1 more source

Fertility outcome after intracytoplasmic sperm injection with surgically retrieved sperm in obstructive and non-obstructive azoospermia [PDF]

open access: yes, 2022
Background: Azoospermia is a highly upcoming subject in the last few decades. In the past, use of donor sperm was the only option providing a realistic chance of conception for couples affected by azoospermia.
Devi, Geeta   +2 more
core   +2 more sources

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