Results 21 to 30 of about 4,887 (219)

Assisted Oocyte Activation following Intracytoplasmic Sperm Injection: A Sensible Option for Infertile Couples with Severe Teratozoospermia [PDF]

open access: yesInternational Journal of Fertility and Sterility, 2023
The intracytoplasmic sperm injection (ICSI) has significantly improved male factor infertility treatment; however, complete fertilization failure still occurs in 1-5% of ICSI treatment cycles mainly due to oocyte activation failure.
Marziyeh Tavalaee   +3 more
doaj   +1 more source

ACTN4 Mediates SEPT14 Mutation-Induced Sperm Head Defects

open access: yesBiomedicines, 2020
Septins (SEPTs) are highly conserved GTP-binding proteins and the fourth component of the cytoskeleton. Polymerized SEPTs participate in the modulation of various cellular processes, such as cytokinesis, cell polarity, and membrane dynamics, through ...
Yu-Hua Lin   +8 more
doaj   +1 more source

miR-508-5p and mir-510-5p expressions and their relationships with spermatozoa motility and morphology [PDF]

open access: yesJournal of Shahrekord University of Medical Sciences, 2020
Background and aims:miRNAs have regulatory functions in developmental processes. The stages of spermatogenesis can also be affected by miRNAs. We tried to detect a relationship between the expression of miR-508-5p and miR-510-5p and male infertility. The
Tahere Hasheminiya   +3 more
doaj   +1 more source

Effect of metabolic and antioxidant supplementation on sperm parameters in oligo-astheno-teratozoospermia, with and without varicocele: a double-blind placebo-controlled study [PDF]

open access: yes, 2018
Since sperm require high energy levels to perform their specialised function, it is vital that essential nutrients are available for spermatozoa when they develop, capacitate and acquire motility.
Agarwal, A.   +8 more
core   +1 more source

Evaluation of SEPT2 and SEPT4 transcript contents in spermatozoa from men with asthenozoospermia and teratozoospermia

open access: yesHealth Science Reports, 2021
Background and aims Motility and morphological defects of spermatozoa can cause male infertility. Sperm RNAs are related to sperm quality. They are considered to have clinical values as a biomarker for assessing sperm quality and fertility potential. The
Madiheh Mazaheri Moghaddam   +6 more
doaj   +1 more source

The Role of Long Noncoding RNAs on Male Infertility: A Systematic Review and In Silico Analysis

open access: yesBiology, 2022
Male infertility is a complex disorder affecting many couples worldwide. Long noncoding RNAs (lncRNAs) regulate important cellular processes; however, a comprehensive understanding of their role in male infertility is limited.
Maria-Anna Kyrgiafini   +2 more
doaj   +1 more source

Minor sperm abnormalities in young male post-pubertal patients with juvenile dermatomyositis [PDF]

open access: yes, 2008
The objective of the present study was to identify sperm abnormalities in young male patients with juvenile dermatomyositis (JDM). In 2005, 18 male JDM patients, diagnosed according to the criteria of Bohan and Peter, were followed at the Pediatric ...
CASEMIRO, R.   +5 more
core   +2 more sources

Determination of the semen quality in male partners of infertile couples in Aminu Kano Teaching Hospital, Kano: A three year review

open access: yesIbom Medical Journal, 2011
Context Male infertility contributes a lot to the causes of infertility among couples attending Gynaecology clinics in our environment. Objectives: To determine semen quality in male partners of infertile couples attending Gynaecology Clinic in Aminu
Ibrahim SA, Muhammad Z
doaj   +1 more source

Expression of Apoptosis-Related Genes in Cat Testicular Tissue in Relation to Sperm Morphology and Seasonality—A Preliminary Study

open access: yesAnimals, 2021
Apoptosis is a crucial process in spermatogenesis, responsible for the elimination of abnormal sperm cells and testicular regression out of breeding season.
Sylwia Prochowska   +2 more
doaj   +1 more source

Is there a relationship between sperm chromosome abnormalities and sperm morphology? [PDF]

open access: yes, 2006
This review explores the relationship between sperm chromosomal constitution and morphology. With the advent of techniques for obtaining information on the chromosome complements of spermatozoa, this relationship has been studied in fertile men and in ...
Ko Evelyn, Sun Fei, Martin Renée H
core   +2 more sources

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