Results 81 to 90 of about 42,377 (234)

Exosomal microRNAs in seminal plasma are markers of the origin of azoospermia and can predict the presence of sperm in testicular tissue

open access: yesHuman Reproduction, 2018
STUDY QUESTION Are exosomal microRNAs (miRNAs) in seminal plasma (SP) useful as markers of the origin of azoospermia and the presence of sperm in the testis?
Marie-Odile Barcelo   +3 more
semanticscholar   +1 more source

Over‐expression of hsa_circ_0000116 in patients with non‐obstructive azoospermia and its predictive value in testicular sperm retrieval

open access: yesAndrology, 2020
Non‐obstructive azoospermia (NOA), identified in approximately 10% of infertile males, is a multifactorial disease whose molecular mechanisms remain unknown.
M. Lv   +5 more
semanticscholar   +1 more source

Predictive factors for sperm retrieval from males with azoospermia who are eligible for testicular sperm extraction (TESE)

open access: yesSystems Biology in Reproductive Medicine, 2020
The aim of this study was to evaluate the predictive value of factors in infertile male patients to retrieve sperm from their testicles before they undergo testicular sperm extraction (TESE). In total, 64 males were enrolled in this study.
Doroteja Pavan-Jukić   +3 more
semanticscholar   +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

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

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  

Effect of FSH on testicular morphology and spermatogenesis in gonadotrophin-deficient hypogonadal mice lacking androgen receptors [PDF]

open access: yes, 2010
Follicle stimulating hormone (FSH) and androgen act to stimulate and maintain spermatogenesis. FSH acts directly on the Sertoli cells to stimulate germ cell number and acts indirectly to increase androgen production by the Leydig cells.
Abel, M.H.   +4 more
core   +2 more sources

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

Prediction model for clinical pregnancy for ICSI after surgical sperm retrieval in different types of azoospermia.

open access: yesHuman Reproduction, 2020
STUDY QUESTION Can a counselling tool be developed for couples with different types of azoospermia to predict the probability of clinical pregnancy in ICSI after surgical sperm retrieval? SUMMARY ANSWER A prediction model for clinical pregnancy in ICSI
Jingyu Song   +9 more
semanticscholar   +1 more source

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