Results 21 to 30 of about 10,513,345 (205)

Management of non‐obstructive azoospermia [PDF]

Reproductive Medicine and Biology, 2016
AbstractNon‐obstructive azoospermia (NOA) is defined as no sperm in the ejaculate due to failure of spermatogenesis and is the most severe form of male infertility. The etiology of NOA is either intrinsic testicular impairment or inadequate gonadotropin production.
Koji, Chiba, Noritoshi, Enatsu, Masato, Fujisawa   +2 more
openaire   +2 more sources

Exploratory Evaluation of Combined Hormonal Indices in Non-Obstructive Azoospermia: Diagnostic Performance and Prediction of TESE Success. [PDF]

J Clin Med
Background: The aim of this study was to evaluate the diagnostic performance of combined testicular function indices in patients with non-obstructive azoospermia and to investigate the clinical value of these indices in predicting the diagnosis of non ...
Aydın SM, Gumusburun N, Gurkan N, Yurtcu N, Calıskan CS, Yılmaz Z, Yılmaz MS.   +6 more
europepmc   +2 more sources

Clinical and laboratory differences between chromosomal and undefined causes of non-obstructive azoospermia: A retrospective study

São Paulo Medical Journal, 2022
BACKGROUND: Knowledge of clinical and laboratory differences between chromosomal and undefined causes aids etiological research on non-obstructive azoospermia.
Luísa Riccetto, Tarsis Paiva Vieira, Nilma Lucia Viguetti-Campos, Tais Nitsch Mazzola, Mara Sanches Guaragna, Helena Fabbri-Scallet, Maricilda Palandi de Mello, Antonia Paula Marques-de-Faria, Andrea Trevas Maciel-Guerra, Gil Guerra Junior   +9 more
doaj   +1 more source

ThePGAM4gene in non-obstructive azoospermia [PDF]

Systems Biology in Reproductive Medicine, 2013
Non-obstructive azoospermia (NOA) is considered to be a severe infertility factor due to impaired spermatogenesis with the consequent absence of spermatozoa in the ejaculate. However, the underlying etiology and mechanism(s) remain elusive. The aim of this study was to investigate the mutation and association of single nucleotide polymorphisms (SNPs ...
Qi, Jin, Hong, Pan, Binbin, Wang, Jing, Wang, Tao, Liu, Xiaoying, Yu, Chao, Jia, Xiang, Fang, Yifeng, Peng, Xu, Ma   +9 more
openaire   +2 more sources

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

, 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.
Hooda, Ruchi, Devi, Geeta, Gopinathan, K. K.   +2 more
core   +1 more source

Proposed age-stratified reference intervals of FSH derived from normozoospermic men

Asian Pacific Journal of Reproduction, 2021
Objective: To demonstrate that serum follicle-stimulating hormone (FSH) in men rises with age, and to explore FSH reference intervals of age-related partitioning.
Emily-Jane Waller, Jason Conceicao, Phillip Matson, John L Yovich   +3 more
doaj   +1 more source

Single-cell analysis of developing and azoospermia human testicles reveals central role of Sertoli cells

Nature Communications, 2020
Non-obstructive azoospermia affects 1% of men. Here, authors perform single-cell transcriptomic analysis of human testicular cells from healthy donors and non-obstructive azoospermia patients and find that inhibition of Wnt signaling promotes the ...
LiangYu Zhao, ChenCheng Yao, XiaoYu Xing, Tao Jing, Peng Li, ZiJue Zhu, Chao Yang, Jing Zhai, RuHui Tian, HuiXing Chen, JiaQiang Luo, NaChuan Liu, ZhiWen Deng, XiaoHan Lin, Na Li, Jing Fang, Jie Sun, ChenChen Wang, Zhi Zhou, Zheng Li   +19 more
doaj   +1 more source

Altered microRNA expression in patients with non-obstructive azoospermia [PDF]

Reproductive Biology and Endocrinology, 2009
Abstract Background MicroRNAs (miRNAs), a class of small non-coding RNA molecules, are indicated to play essential roles in spermatogenesis. However, little is known about the expression patterns or function of miRNAs in human testes involved in infertility.
Li Xin, Liang Chaozhao, Wang Yong, Liang Ning, Tian Hui, Zhang Xiansheng, Lian Jie, Sun Fei   +7 more
openaire   +3 more sources

Difficulties in differential diagnosis between obstructive and non-obstructive azoospermia

Вестник урологии, 2022
Introduction. The difference between obstructive and non-obstructive azoospermia (OA and NOA) is important for the choice of treatment tactics and adequate counseling of a married couple.Objective.
S. I. Gamidov, T. V. Shatylko, A. Kh. Tambiev, N. G. Gasanov, A. Yu. Popova, A. A.A. Alravashdeh   +5 more
doaj   +1 more source

Building families—Implementing balanced sexual and reproductive health

International 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, Edgar Mocanu, Linda Giudice, Marcos Horton, Meletios P. Nigdelis, Antti Perheentupa, Andrea Sansone, Giovanni Corona, Luca Gianaroli, Dimitrios G. Goulis   +9 more
wiley   +2 more sources