Results 231 to 240 of about 30,688 (283)
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Human Reproduction, 2020
STUDY QUESTION Can a machine-learning-based model trained in clinical and biological variables support the prediction of the presence or absence of sperm in testicular biopsy in non-obstructive azoospermia (NOA) patients?
A. Zeadna +8 more
semanticscholar +1 more source
STUDY QUESTION Can a machine-learning-based model trained in clinical and biological variables support the prediction of the presence or absence of sperm in testicular biopsy in non-obstructive azoospermia (NOA) patients?
A. Zeadna +8 more
semanticscholar +1 more source
Systems Biology in Reproductive Medicine, 2021
miRNAs are involved in different biological processes, including proliferation, differentiation, and apoptosis. Interestingly, 38% of the X chromosome-linked miRNAs are testis-specific and have crucial roles in regulating the renewal and cell cycle of ...
Yeganeh Rastgar Rezaei +10 more
semanticscholar +1 more source
miRNAs are involved in different biological processes, including proliferation, differentiation, and apoptosis. Interestingly, 38% of the X chromosome-linked miRNAs are testis-specific and have crucial roles in regulating the renewal and cell cycle of ...
Yeganeh Rastgar Rezaei +10 more
semanticscholar +1 more source
2014
Azoospermia is defined as the complete absence of sperm in the ejaculate even after centrifugation. With a prevalence of 1 % among the general male population and 10-15 % among infertile men, it can be classified in two large groups: Obstructive and non-obstructive azoospermia (OA and NOA).
Franco G., Misuraca L., Tuderti G.
openaire +2 more sources
Azoospermia is defined as the complete absence of sperm in the ejaculate even after centrifugation. With a prevalence of 1 % among the general male population and 10-15 % among infertile men, it can be classified in two large groups: Obstructive and non-obstructive azoospermia (OA and NOA).
Franco G., Misuraca L., Tuderti G.
openaire +2 more sources
Secondary azoospermia after vasovasostomy
Fertility and Sterility, 2004To determine the frequency of secondary azoospermia after microsurgical vasovasostomy and to determine what factors increase the risk of its occurrence.We performed a retrospective review of three surgeons' experience. Patency was defined as the presence of sperm in at least one postoperative semen sample.
Peter N, Kolettis +5 more
openaire +2 more sources
Molecular mechanisms of cellular dysfunction in testes from men with non-obstructive azoospermia
Nature reviews. Urology, 2023Arina Piechka +4 more
semanticscholar +1 more source
Forensic Science International, 1982
Abstract The frequency of azoospermia was found to be 1.9% in seminal stains on swabs examined in sexual assault cases.
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Abstract The frequency of azoospermia was found to be 1.9% in seminal stains on swabs examined in sexual assault cases.
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Imaging of obstructive azoospermia
European Radiology, 1997Obstructive azoospermia represents approximately 10 % of cases of male hypofertility. It is classified according to the volume of ejaculate. When the latter is normal a proximal obstruction is suspected. Scrotal sonography can help to detect dilation of the epididymal head when clinical findings are equivocal.
F, Cornud +5 more
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Human Reproduction, 2019
STUDY QUESTION What is the diagnostic potential of next generation sequencing (NGS) based on a 'mouse azoospermia' gene panel in human non-obstructive azoospermia (NOA)?
A. Riera-Escamilla +13 more
semanticscholar +1 more source
STUDY QUESTION What is the diagnostic potential of next generation sequencing (NGS) based on a 'mouse azoospermia' gene panel in human non-obstructive azoospermia (NOA)?
A. Riera-Escamilla +13 more
semanticscholar +1 more source
Archives of Andrology, 1989
Oligo/azoospermia contributes significantly to infertility in male Nigerians, being responsible for most of the problem. By definition, it would appear that the criteria for the diagnosis of this problem in Nigerians should be sperm density below 10 million/ml, total sperm ejaculate below 25 million, motility below 40%, and normal forms below 40% in ...
S F, Kuku, D N, Osegbe
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Oligo/azoospermia contributes significantly to infertility in male Nigerians, being responsible for most of the problem. By definition, it would appear that the criteria for the diagnosis of this problem in Nigerians should be sperm density below 10 million/ml, total sperm ejaculate below 25 million, motility below 40%, and normal forms below 40% in ...
S F, Kuku, D N, Osegbe
openaire +2 more sources
Genetic Architecture of Azoospermia-Time to Advance the Standard of Care.
European Urology, 2022M. J. Wyrwoll +21 more
semanticscholar +1 more source