Results 1 to 10 of about 8,465 (222)

The significance of karyotyping and azoospermia factor analysis in patients with nonobstructive azoospermia or oligozoospermia

open access: yesTaiwanese Journal of Obstetrics and Gynecology, 2022
Objective: We present our study about the significance of karyotyping and azoospermia factor(AZF) analysis in patients with azoospermia or oligozoospermia.
Shin-Wen Chen   +2 more
exaly   +3 more sources

Men with oligozoospermia had lower level of seminal plasma pyridoxine compared to normozoospermic men

open access: yesHeliyon, 2022
The contribution of pyridoxine on various human disorders has been revealed in so many studies; however, this contribution on poor semen quality has yet to be investigated.
Saleem Ali Banihani
exaly   +3 more sources

Mechanisms of oligozoospermia: an oxidative stress perspective [PDF]

open access: yesSystems Biology in Reproductive Medicine, 2014
Infertile patients presenting with poor semen concentration, motility, and morphology have significantly higher levels of reactive oxygen species (ROS). In this cross-sectional study, our goal was to: 1) determine how semen parameters such as concentration, motility, morphology, as well as ROS are altered in oligozoospermic men alone and those in ...
Ashok Agarwal   +2 more
exaly   +3 more sources

Methylation Status Of MTHFR Promoter And Oligozoospermia Risk: An Epigenetic Study And In Silico Analysis [PDF]

open access: yesCell Journal, 2021
Objective: In this study, we evaluated the effects of promoter methylation of MTHFR on oligozoospermia risk, followed by an in silico analysis. Materials and Methods: In a case-control study, semen samples were collected from infertile and healthy ...
Atefeh Rezaeian   +2 more
doaj   +1 more source

From azoospermia to macrozoospermia, a phenotypic continuum due to mutations in the ZMYND15 gene

open access: yesAsian Journal of Andrology, 2022
Thanks to tremendous advances in sequencing technologies and in particular to whole exome sequencing (WES), many genes have now been linked to severe sperm defects.
Zine-Eddine Kherraf   +7 more
doaj   +1 more source

Evaluation of five candidate genes from GWAS for association with oligozoospermia in a Han Chinese population. [PDF]

open access: yesPLoS ONE, 2013
BACKGROUND: Oligozoospermia is one of the severe forms of idiopathic male infertility. However, its pathology is largely unknown, and few genetic factors have been defined.
Miaofei Xu   +13 more
doaj   +1 more source

Assessment of Thyroid Functions and its Relationship With Semen Quality in Men [PDF]

open access: yesInternational Journal of Basic Science in Medicine, 2023
Introduction: In recent years, a partial relationship has been discovered between thyroid hormones and the formation of germ cells and the process of spermatogenesis.
Luay Qasim Abdulhameed
doaj   +1 more source

Nonsurgical Management of Oligozoospermia

open access: yesThe Journal of Clinical Endocrinology & Metabolism, 2020
AbstractMale infertility secondary to oligozoospermia is surprisingly common. Although a majority of cases are idiopathic, oligozoospermia can be caused by endocrine dysfunction, anatomic abnormalities, medications, or environmental exposures. The work-up includes excluding reversible factors such as hormonal deficiency, medication effects, and ...
Jeremy T, Choy, John K, Amory
openaire   +3 more sources

Genomic study of TEX15 variants: prevalence and allelic heterogeneity in men with spermatogenic failure

open access: yesFrontiers in Genetics, 2023
Introduction: Human spermatogenesis is a highly intricate process that requires the input of thousands of testis-specific genes. Defects in any of them at any stage of the process can have detrimental effects on sperm production and/or viability.
Sidra Qureshi   +18 more
doaj   +1 more source

Assessment of Correlation between Androgen Receptor CAG Repeat Length and Infertility in Infertile Men Living in Khuzestan, Iran [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2015
Background The androgen receptor (AR) gene contains a polymorphic trinucleotide repeat that encodes a polyglutamine tract in its N-terminal transactivation domain (N- TAD).
Saeid Reza Khatami   +4 more
doaj   +1 more source

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