Results 61 to 70 of about 31,236 (235)

Update on male reproductive endocrinology. [PDF]

open access: yes, 2018
Practitioners of male reproductive and sexual medicine must have an intimate understanding of the physiology of male reproductive endocrinology, as such a knowledge is the cornerstone on which hormonal treatments are based.
Clavijo, Raul, Hsiao, Wayland
core   +1 more source

A genome-wide survey of segmental duplications that mediate common human genetic variation of chromosomal architecture. [PDF]

open access: yes, 2004
Recent studies have identified a small number of genomic rearrangements that occur frequently in the general population. Bioinformatics tools are now available for systematic genome-wide surveys of higher-order structures predisposing to such common ...
Freimer, Nelson B   +2 more
core   +2 more sources

TXNDC2 joint molecular marker is associated with testis pathology and is an accurate predictor of sperm retrieval

open access: yesScientific Reports, 2021
The association of PRM1/2 with male azoospermia is well-documented, but the relationship between TXNDC2 deficiency and the azoospermia phenotype, sperm retrieval, and pathology has not been elucidated.
Seyed-Morteza Javadirad   +1 more
doaj   +1 more source

Prevalence of Y chromosome deletions in a Brazilian population of nonobstructive azoospermic and severely oligozoospermic men [PDF]

open access: yes, 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

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

open access: yesNature 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   +19 more
doaj   +1 more source

A case of azoospermia in a non-destructive testing worker exposed to radiation

open access: yesAnnals of Occupational and Environmental Medicine, 2017
Background Interest in radiation-related health problems has been growing with the increase in the number of workers in radiation-related jobs. Although an occupational level of radiation exposure would not likely cause azoospermia, several studies have ...
Jaechan Park   +3 more
doaj   +1 more source

Nonobstruktif azospermi olgularında yeni yaklaşımlar [PDF]

open access: yes, 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

The importance of semen analysis in the context of azoospermia

open access: yesClinics, 2013
Azoospermia is a descriptive term referring to ejaculates that lack spermatozoa without implying a specific underlying cause. The traditional definition of azoospermia is ambiguous, which has ramifications on the diagnostic criteria.
Nabil Aziz
doaj  

Chromosomal disorders and male infertility [PDF]

open access: yes, 2015
Male factor infertility is considered a complex disorder with a largely unknown etiology that affects about 7% of men. In general, genetic abnormalities account for 15%-30% of condition and Y chromosome microdeletions are also frequent.
Alves, C.   +11 more
core  

Meiotic recombination and male infertility: from basic science to clinical reality? [PDF]

open access: yes, 2011
Infertility is a common problem that affects approximately 15% of the population. Although many advances have been made in the treatment of infertility, the molecular and genetic causes of male infertility remain largely elusive. This review will present
Hann, Michael C.   +2 more
core   +1 more source

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