Results 81 to 90 of about 23,134,952 (376)

A new perspective on semen quality of aged male: The characteristics of metabolomics and proteomics

open access: yesFrontiers in Endocrinology, 2023
BackgroundSemen quality is negatively correlated with male age and is mainly quantified by a routine semen analysis, which is descriptive and inconclusive.
Yi Guo   +9 more
doaj   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Semen analysis and sperm function tests: How much to test?

open access: yesIndian Journal of Urology, 2011
Semen analysis as an integral part of infertility investigations is taken as a surrogate measure for male fecundity in clinical andrology, male fertility, and pregnancy risk assessments.
S S Vasan
doaj   +1 more source

A Web-Based Global Educational Model for Training in Semen Analysis during the COVID-19 Pandemic

open access: yesThe World Journal of Men's Health, 2021
Purpose: In response to the COVID-19 pandemic, the American Center for Reproductive Medicine (ACRM) transitioned its annual training in assisted reproductive technology (ART) from a hands-on, laboratory-based training course to a fully online training ...
Ashok Agarwal   +25 more
doaj   +1 more source

Penerapan Prinsip Good Corporate Governance (GCG) Pada Bumn Berorientasi Global (Studi Kasus Pada PT. Semen Indonesia (Persero) Tbk. Dalam Mengelola Thang Long Cement Joint Stock Company) [PDF]

open access: yes, 2016
This research aims to describe the strategy from PT. Semen Indonesia (Persero) Tbk. in implementing GCG principles in Thang Long Cement Joint Stock Company (TLCC); and identifying the obstacle which faced by PT. Semen Indonesia (Persero) Tbk. in order to
Mawardi, M. K. (Mukhammad)   +2 more
core  

On the Origins of the Semen Analysis: A Close Relationship with the History of the Reproductive Medicine

open access: yesJournal of Human Reproductive Sciences, 2017
The spermatozoa were first seen in ejaculates in the 17th century. However, the basic mechanisms of human fertilization have been only fully understood after the discovery of ovum in 1827.
F. Andrade-Rocha
semanticscholar   +1 more source

Mechanisms of parasite‐mediated disruption of brain vessels

open access: yesFEBS Letters, EarlyView.
Parasites can affect the blood vessels of the brain, often causing serious neurological problems. This review explains how different parasites interact with and disrupt these vessels, what this means for brain health, and why these processes matter. Understanding these mechanisms may help us develop better ways to prevent or treat brain infections in ...
Leonor Loira   +3 more
wiley   +1 more source

The association between sperm quality and asymptomatic chlamydial infection in infertile men at a private fertility clinic in Nigeria

open access: yesNigerian Journal of Medicine, 2019
BACKGROUND: Association between chlamydia trachomatis infection and male infertility is debated in literature. There is little or no information from Nigeria.
Folasade A Bello   +4 more
doaj   +1 more source

Effect of thyroxine replacement on leydig cell and sertoli cell function in men with hypothyroidism

open access: yesIndian Journal of Endocrinology and Metabolism, 2020
Context: Thyroid hormones play an important role in reproductive and sexual function in both sexes. Comprehensive information on the ill-effects of hypothyroidism on Leydig cell, Sertoli cell and germ cell function is lacking in the existing literature ...
Jayakumar S Ambigapathy   +4 more
doaj   +1 more source

Comparison of five different methods to assess the concentration of boar semen [PDF]

open access: yes, 2010
Both for research and practical purposes, accurate and repeatable methods are required to assess the concentration of boar semen samples. Since the method which is used may influence the results considerably, the aim of the present study was to compare 5
Deley, W   +5 more
core  

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