Results 61 to 70 of about 40,908 (256)

Impact of alcohol on male reproductive hormones, oxidative stress and semen parameters in Sprague–Dawley rats

open access: yesMiddle East Fertility Society Journal, 2015
Objective: To investigate the impact of alcohol on the reproductive hormones, oxidative stress and semen parameters. Design: This is an experimental animal study.
A.A. Oremosu, E.N. Akang
doaj   +1 more source

Early stages of tooth development in the harbor porpoise Phocoena phocoena

open access: yesThe Anatomical Record, EarlyView.
Abstract Here we describe the stages of tooth development in toothed whales on the basis of the harbor porpoise (Phocoena phocoena). The aim of the study was to find out whether these stages are identical to those of other mammals analyzed so far although toothed whales are homodont and monophyodont.
Lasse M. Mathes   +2 more
wiley   +1 more source

Effect of age on semen parameters in infertile men after varicocelectomy

open access: yesTherapeutics and Clinical Risk Management, 2011
Kamaleddin Hassanzadeh-Nokashty1, Parisa Yavarikia2, Alireza Ghaffari3, Samad Hazhir1, Mohammadali Hassanzadeh11Department of Urology, 2Faculty of Nursery and Midwifery, 3Department of Internal Medicine, Tabriz University of Medical Sciences, Tabriz ...
Hassanzadeh-Nokashty K   +4 more
doaj  

Ursolic Acid Alleviates Orchitis via Modulating Ferroptosis in Peritubular Myoid Cells of Testis

open access: yesAnimal Research and One Health, EarlyView.
Ursolic acid modulates key ferroptosis‐related pathways in the peritubular myoid cells of the testis in forest musk deer. ABSTRACT Chronic stress adversely affects reproductive health, increasing susceptibility to pathologies such as orchitis. Additionally, the maintenance of iron homeostasis is essential for preserving the function of the testicles ...
Yang Wang   +11 more
wiley   +1 more source

Sperm Counts Are Falling Worldwide

open access: yes, 2021
Claims that sperm counts have fallen worldwide are based on meta-analysis of sperm concentration data taken from a variety of published studies that were never designed to answer this question. Since methods of counting sperm in the laboratory over time have changed so markedly, both in terms of the techniques used and in terms of the staff training ...
openaire   +2 more sources

Myo‐Inositol Mitigates Oxidative Stress in Bovine Mammary Epithelial Cells via Activation of the SIRT5/Nrf2 Signaling Axis

open access: yesAnimal Research and One Health, EarlyView.
Myo‐inositol alleviates oxidative stress in dairy cow mammary epithelial cells via the Sirt5/Nrf2 pathway to promote mitochondrial fusion. This graphical abstract was created with BioRender.com. ABSTRACT High‐yielding dairy cows are susceptible to mammary gland oxidative stress due to prolonged intensive lactation, leading to redox imbalance.
Yufei Zhang   +8 more
wiley   +1 more source

CORRELATION OF SPERM PARAMETERS WITH SEMINAL PLASMA CREATINE PHOSPHOKINASE AND CHOLESTEROL LEVELS IN FERTILE AND INFERTILE MEN

open access: yesUrology Research and Practice, 2019
In the study correlation between sperm parameters and seminal plasma creatine phosphokinase (CPK) and cholesterol levels in fertile and infertile subjects has been investigated.
A. Verit, Ö. Erel, D. Ünal, E. Yeni
doaj   +2 more sources

Heat Stress in Quail: Impacts on Health and Productivity, and Mitigation Strategies

open access: yesAnimal Research and One Health, EarlyView.
Heat stress disrupts physiological homeostasis in quail, inducing oxidative stress, immune dysregulation, and metabolic imbalance, which impair growth, reproduction, product quality, and welfare. Integrating nutritional, environmental, and genetic–epigenetic strategies enhances thermotolerance, sustains productivity, and supports climate‐smart quail ...
T. A. Eletu   +6 more
wiley   +1 more source

Radioprotective and Radiomitigative Effects of Resveratrol in Radiation-Induced Reproductive Toxicity in Male Mice

open access: yesToxics
Background: Agents with free radical-scavenging functions may act as radiation modifiers, protectors, or mitigators. Methods: We investigated whether supplementation with resveratrol (RSV) in mice, at different times after the beginning of X-irradiation,
Małgorzata M. Dobrzyńska   +1 more
doaj   +1 more source

Hepatotoxicity of Nonesterified Fatty Acids to Dairy Cows: Pathophysiological Mechanisms and Prospective Solutions

open access: yesAnimal Research and One Health, EarlyView.
Unregulated inflammation increases non‐esterified fatty acids (NEFAs), and triggers multi‐pathway hepatocyte damage including oxidative stress, mitochondrial dysfunction, and metabolic disorders in dairy cows. ABSTRACT Circulating concentrations of nonesterified fatty acids (NEFAs) are elevated due to lipid mobilization from adipose tissue in ...
Siqing Mao   +12 more
wiley   +1 more source

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