Effect of trace elements on the seminal oxidative status and correlation to sperm motility in infertile Saudi males.

The impact of trace elements, especially zinc, selenium, copper, and magnesium, on male fertility has gained great interest and significance. Increased oxidative stress and altered trace element levels are probable etiological factors underlying male reproductive dysfunction and infertility. The present study focused on the evaluation of seminal oxidative markers, such as reactive oxygen species (ROS), malondialdehyde (MDA), and total antioxidant capacity (TAC), and trace element levels in the normozoospermic fertile control group (n = 40) and asthenozoospermic infertile group (n = 30).

Dissecting Sex-Related Cognition between Alzheimer's Disease and Diabetes: From Molecular Mechanisms to Potential Therapeutic Strategies.

The brain is a sexually dimorphic organ that implies different functions and structures depending on sex. Current pharmacological approaches against different neurological diseases act distinctly in male and female brains. In all neurodegenerative diseases, including Alzheimer's disease (AD), sex-related outcomes regarding pathogenesis, prevalence, and response to treatments indicate that sex differences are important for precise diagnosis and therapeutic strategy.

Epigallocatechin gallate and coenzyme Q10 attenuate cisplatin-induced hepatotoxicity in rats via targeting mitochondrial stress and apoptosis.

Despite the extensive use of cisplatin (CP) as a chemotherapeutic agent, its clinical use is often restricted by undesirable side effects, such as toxicity to normal tissues. The aim of this study was to probe the effect of a combinatorial treatment of low multiple doses of antioxidants on CP-induced toxicity and the mitochondrial apoptotic pathway in hepatocytes. Animals received a single toxic dose of CP (7.

Possible Prophylactic Approach for SARS-CoV-2 Infection by Combination of Melatonin, Vitamin C and Zinc in Animals.

SARS-CoV-2, an epidemic, causes severe stress in both human and animals and may induce oxidative stress (OS) and increases susceptibility to infection. Domestic animals are found infected by their COVID-2 suffering owners. Chronic immobilization stress (CIS), a model of psychological and physical stress of confinement, can trigger depression and anxiety in animals.

Eco friendly silver nanoparticles synthesis by Brassica oleracea and its antibacterial, anticancer and antioxidant properties.

Production of environmentally amenable silver nanoparticles (AgNPs) has garnered the interest of the scientific community owing to their broad application primarily in the field of optronics, sensing and extensively in pharmaceuticals as promising antioxidant, antimicrobial and anticancer agents. The current study emphases on production of ecofriendly silver nanoparticles from Brassica oleracea (BO) and investigated their antibacterial, anticancer and antioxidant activity. The characteristics of synthesized BO-AgNPs were studied by ultraviolet-visible spectroscopy, particle size analysis, electro kinetic/zeta potential analysis, and Transmission electron microscope (TEM).

Restraint stress abates the antioxidant potential of melatonin on dimethyl benz (a) anthracene (DMBA) induced carcinogenesis.

Free radical involvement in initiation, promotion and progression of carcinogenesis, implicates that scavengers of free radicals may act as inhibitors in the carcinogenic process. Melatonin, an antioxidant was used in the present study to evaluate its effectiveness on skin carcinogenesis induced by DMBA both with and without chronic restraint stress (CRS). Fifty Swiss albino young male rats were divided into five groups of 10 rats each as controls, topical DMB alone, Pre CRS-DMBA, melatonin DMBA and Pre-CRS-DMBA-melatonin treated groups.

Molecular Insight into the Crosstalk of UPS Components and Alzheimer's Disease.

The ubiquitin (Ub)-proteasome system (UPS) targets various cellular proteins for degradation. It has been found that defects in the UPS play a crucial role in the pathogenesis of Alzheimer's disease (AD), as the existence of Ub immunoreactivity in AD-linked neuronal inclusions, including neurofibrillary tangles, is observed in all types of AD cases. Current investigations have shown that components of the UPS can be connected with the early stage of AD, which is characterized by synaptic dysfunction, and to the late phases of the disease, marked by neurodegeneration.

Hepato-protective effect of Allium sativum against immobilization stress in rats.

The purpose of the current study was to examine immobilization stress-induced antioxidant defense changes and estimation of the antioxidant potential of pre and post stress treatment of aqueous garlic extract in rat's liver. For this purpose, male Albino Wistar rats were treated with aqueous garlic extract both pre and after 6 h of immobilization stress. Pro-oxidant status of rat liver was evaluated by determining the levels of reduced glutathione (GSH), thiobarbituric acid reactive substances (TBARS), aspartate aminotransferase (AST), alanine transaminase (ALT), alkaline phosphatase (ALP), glucose, uric acid and the activities of super oxide dismutase (SOD), catalase (CAT) and glutathione-S-transferase (GST).

Antioxidant Potential of Aqueous Leaves Extract in Modulating Restraint Stress-Induced Changes in Rat's Liver.

Introduction: This study was carried out to evaluate the antioxidant potential of crude extract of leaves and its active constituents as treatment against restraint stress in rat's liver.

Methods: For this purpose, male albino Wistar rats were treated with crude extract of leaves and its alkaloid and flavonoid fractions both before and after 6 h of acute restraint stress. Prooxidant status of rat liver was assessed by determining the levels of thiobarbituric acid reactive substances, reduced glutathione, alkaline phosphatase, alanine transaminase, aspartate aminotransferase, and the activities of antioxidant enzymes superoxide dismutase (SOD), catalase (CAT), and glutathione S-transferase (GST).

Pre-Exposure to Chronic Unpredictable Stress Suppresses the Chemopreventive Potential of Aloe Vera (Av) Leaf Gel Against 7,12-Dimethylbenz(a)anthracene (DMBA) Induced Carcinogenesis.

The present study evaluates the topical application of aloe vera (Av) leaf gel as a protective natural product against 7,12-dimethylbenz(a)anthracene (DMBA)-induced skin lesions in Swiss albino mice and as an antioxidant for the systemic toxicity of DMBA in the presence and absence of chronic unpredictable stress (CUS). Animals were randomized into seven groups and sacrificed after 16 weeks of treatment. Av gel application along with DMBA + 12-O-tetradecanoylphorbol-13-acetate (TPA) was found to be effective in reducing tumor incidence, cumulative number of papillomas, tumor burden and tumor yield when compared to untreated groups.

Exacerbation of -nitrosodiethylamine Induced Hepatotoxicity and DNA Damage in Mice Exposed to Chronic Unpredictable Stress.

Psychological stress contributes to increased susceptibility to a number of diseases including cancer. The present study was designed to assess the effect of chronic unpredictable stress on -nitrosodiethylamine induced liver toxicity in terms of antioxidant status and DNA damage in Swiss albino mice. The animals used in this study were randomized into different groups based on the treatment with -nitrosodiethylamine or chronic unpredictable stress alone and post-stress administration of -nitrosodiethylamine.

Garlic extract attenuates immobilization stress-induced alterations in plasma antioxidant/oxidant parameters and hepatic function in rats.

Objective: To investigate the oxidative stress induced by 6 h of immobilization stress in Albino Wistar rats. Further, the pre- and post-treatment of aqueous garlic extract was studied to evaluate its preventive and curative efficacy on stress-induced altered oxidative parameters in rats.

Methods: Albino Wistar rats were exposed to 6 h of immobilization stress, and received garlic extract (100 mg/kg body weight) treatment pre- or post-stress exposure.

Combined treatment of epigallocatechin gallate and Coenzyme Q10 attenuates cisplatin-induced nephrotoxicity via suppression of oxidative/nitrosative stress, inflammation and cellular damage.

Cisplatin (CP), a platinum based anticancer drug is used as one of the first-line therapy for the treatment of different types of solid tumors. However, CP-induced side effects particularly, nephrotoxicity is a major concern. A single nephrotoxic dose (7 mg/kg body weight) of CP was administered in rats with or without, pre and post combined multidoses of epigallocatechin gallate (EGCG) and coenzyme Q10 (CoQ10) (15 and 5 mg/kg body weight respectively).

Integrating Qualitative and Quantitative Tools for the Detection and Identification of Lectins in Major Human Diseases.

Lectins are the (glyco)proteins that recognize and bind to specific sugar moieties without altering their structure. Galectins are mammalian lectins characterized by the presence of conserved 134 amino acids carbohydrate recognition domain and specificity for β-galactosides. The involvement of lectins in diverse biological spectrum, especially some deadly human diseases like cancer, neurological disorders and cardiovascular disorders has proclaimed them as one of the important components of glycobiology, thereby seeking the methods of their detection and identification heavily desirable.

Studies on the role of goat heart galectin-1 as a tool for detecting post-malignant changes in glycosylation pattern.

Galectins are mammalian lectins established to play a crucial role in the progression of various cancer types by the virtue of their differential expression in normal and cancerous cells. In the present study, goat heart galectin-1 (GHG-1) was purified and investigated for its potential role in the detection of post-malignant changes in glycosylation pattern. When exposed to superoxide radicals generated from a pyrogallol auto-oxidation system, GHG-1 treated erythrocyte suspension released higher amount of oxyhemoglobin than the unagglutinated erythrocytes.

Altered galectin glycosylation: potential factor for the diagnostics and therapeutics of various cardiovascular and neurological disorders.

Galectins are β-galactoside binding mammalian proteins characterized by the presence of a conserved carbohydrate recognition domain, expressed in almost all taxa of living organisms and involved in broad range of significant biological and physiological functions. Previously, we reported the purification and extensive characterization of galectin-1 from goat (Capra hircus) heart. Interestingly, the purified protein was found to have significant level of glycosylation.

Effect of pre- and post-combined multidoses of epigallocatechin gallate and coenzyme Q10 on cisplatin-induced oxidative stress in rat kidney.

The nephroprotective effect of coenzyme Q10 and epigallocatechin gallate was investigated in rats with acute renal injury induced by a single nephrotoxic dose of cisplatin. Two days prior to cisplatin administration, epigallocatechin gallate and coenzyme Q10 alone and in four different combinations were given for 6 days. The treatment with antioxidants significantly protected the cisplatin-induced increase in the levels of blood urea nitrogen and serum creatinine.

Protective Effect of Solanum nigrum Leaves Extract on Immobilization Stress Induced Changes in Rat's Brain.

The prophylactic or curative antioxidant efficacy of crude extract and the active constituent of S. nigrum leaves were evaluated in modulating inherent antioxidant system altered due to immobilization stress in rat brain tissues, in terms of measurement of glutathione (GSH), lipid peroxidation (thiobarbituric acid reactive substances, TBARS), and free radical scavenging enzymes activities. Rats were treated with single dose of crude extract of S.

Evaluation of oxidative stress and DNA damage in benign prostatic hyperplasia patients and comparison with controls.

In the present study, oxidative stress and lymphocytic DNA damage in both pre-op and post-op benign prostrate hyperplasia (BPH) patients with age >50 years was evaluated and compared with normal healthy subjects (controls- without any evidence of disease) of the same sex and age group. From December 2007 to November 2009, oxidative stress in 45 BPH patients were evaluated both before (pre-op patients) and after 7 days of surgery (post-op patients) in terms of measurements of plasma levels of (1) various anti-oxidative enzymes, (2) non-enzymatic antioxidants and (3) malondialdehyde which is a product of lipid peroxidation. The lymphocyte DNA damage was also evaluated by single cell alkaline gel electrophoresis in terms of tail length migration in these patients.

Effect of chronic unpredictable stress on short term dietary restriction and its modulation by multivitamin-mineral supplementation.

Dietary restriction (DR) lowers steady-state levels of oxidative stress and alters behavioral, physiological and biochemical responses in mammals. However, various factors effect its application in humans like socio-cultural, appetite and the daily life stress. Physiological and psychological stress owing to fast-paced lifestyles, translates into oxidative stress.