Results 21 to 30 of about 6,674 (223)

Proteomic profile of human spermatozoa in healthy and asthenozoospermic individuals

open access: yesReproductive Biology and Endocrinology, 2018
Asthenozoospermia is considered as a common cause of male infertility and characterized by reduced sperm motility. However, the molecular mechanism that impairs sperm motility remains unknown in most cases.
Xiaodan Cao   +6 more
doaj   +1 more source

Biometric analysis spermograms of men of different age groups in normal and pathology in Lviv region, Ukraine

open access: yesБіологічні студії, 2022
Background. Analysis of the causes of infertility revealed an increase in the proportion of male factors over the past 20 years by an average of 10–12 %.
A. V. Tarnovska, A. B. Heneha
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

Adnexal Gland Secretion Markers in Unexplained Asthenozoospermia [PDF]

open access: yesArchives of Andrology, 1994
Prostatic acid phosphatase, prostate-specific antigen, and zinc as markers of prostate, and fructose as marker of seminal vesicles were investigated in the seminal plasma of 35 idiopathic asthenozoospermic and 20 normal subjects to evaluate their relationship with sperm motility.
Carpino A   +6 more
openaire   +4 more sources

A correlative interaction between thyroid dysfunction and semen parameters in male infertility: A prospective case control study

open access: yesActa Medica Martiniana, 2022
The role of thyroid function on sperm quality has not been well studied from a pathological aspect. This study aimed to report the degree of association between the status of thyroid hormones, sperm quality and aetiology in infertile men compared to ...
Venkateswara Rao M.   +3 more
doaj   +1 more source

Essential role of CFTR in PKA-dependent phosphorylation, alkalinization, and hyperpolarization during human dperm capacitation [PDF]

open access: yes, 2017
Mammalian sperm require to spend a limited period of time in the female reproductive tract to become competent to fertilize in a process called capacitation.
Austin   +63 more
core   +1 more source

Heterogeneous Immunolocalisation of Zinc Transporters ZIP6, ZIP10 and ZIP14 in Human Normo- and Asthenozoospermic Spermatozoa

open access: yesCurrent Issues in Molecular Biology, 2022
Zinc (in the form of Zn2+) is necessary for male fertility. Both Zn2+ quantity and its localisation have been detected in seminal plasma and ejaculated spermatozoa, suggesting its active uptake via zinc import transporters (ZIPs).
Isidora Protic   +4 more
doaj   +1 more source

Proteomic Landscape of Human Sperm in Patients with Different Spermatogenic Impairments

open access: yesCells, 2023
Although the proteome of sperm has been characterized, there is still a lack of high-throughput studies on dysregulated proteins in sperm from subfertile men, with only a few studies on the sperm proteome in asthenozoospermic and oligoasthenozoospermic ...
Lea Simone Becker   +6 more
doaj   +1 more source

Human sperm ion channel (dys)function:implications for fertilization [PDF]

open access: yes, 2019
BACKGROUND: Intensive research on sperm ion channels has identified members of several ion channel families in both mouse and human sperm. Gene knock-out studies have unequivocally demonstrated the importance of the calcium and potassium conductances in ...
Barratt, Christopher L. R.   +3 more
core   +4 more sources

Linggui Yangyuan paste for patients with male infertility: a study protocol for a multicenter, double-blind, double-dummy, randomized controlled trial [PDF]

open access: yesJournal of Men's Health, 2023
Male infertility affects millions of men worldwide and is increasing in prevalence, with asthenozoospermia (AS) and oligoasthenozoospermia (OA) being the most frequent causes, and current treatments are limited.
Sheng-jing Liu   +7 more
doaj   +1 more source

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