نتایج جستجو برای: non enzymatic antioxidant systems

تعداد نتایج: 2512727  

2009
Palanisamy Pasupathi J. Farook

ISSN:0975-1459 Oxidative stress plays an important role in the pathogenesis of some diseases such as lung cancer, chronic obstructive pulmonary disease, and atheroscleorosis. Smoking may enhance oxidative stress not only through the production of reactive oxygen radicals in smoke but also through weakening of the antioxidant defense systems. Cigarette smoke may promote atherogenesis by producin...

Kathiresan Maithily Suttur Malini,

Background:Several studies have reported the toxicological implications of inhalation of petroleum hydrocarbon fumes in animal models. But, there is certainly little or no documentation of the exposure to petroleum hydrocarbon fuel on oxidative stress levels in humans, unlike the pulmonary physiology. The present study was carried out to evaluate the effects of constituents of the hydrocarbon f...

Journal: :European review for medical and pharmacological sciences 2011
K Shagirtha M Muthumani S Milton Prabu

BACKGROUND Cadmium is a potent neurotoxic heavy metal, which induces oxidative stress and membrane disturbances in brain. Melatonin is an effective antioxidant and free radical scavenger against oxidative stress. The present study was designed to investigate the neuroprotective efficacy of melatonin in protecting the Cd induced changes in the activity of acetylcholinesterase (AChE), levels of l...

Journal: :Indian Journal of Pharmaceutical Education and Research 2023

Abstract: Aim: To investigate chemo-preventive effect of methanolic fruit extract Cucumis melo var. agrestis on DEN (diethyl-nitrosamine) induced hepatocellular carcinoma in Sprague Dawley rats. Materials and Methods: Five groups rats randomly selected comprising 6 animals each group, all groups, except Group-1 were administered single dose (200 mg/kg, i.p. dissolved PBS) for the induction HCC ...

2015
Zhiyong Zhang Xin Zhang Zebing Hu Sufang Wang Jinbao Zhang Xiaojing Wang Qinglian Wang Baohong Zhang

Coronatine [COR] is a novel type of plant growth regulator with similarities in structure and property to jasmonate. The objective of this study was to examine the relationship between increased root vitality induced by 10 nM COR and reactive oxygen species scavenging under potassium (K)-replete (2.5 mM) and K-deficient (0.05 mM) conditions in hydroponic cultured cotton seedlings. K-replete and...

2013
Parichehr Hanachi Afsaneh Shemshaki

Physical activity is well known to induce free radicals and reactive oxygen species (ROS). There are enzymatic and non-enzymatic defense systems against ROS in aerobic organisms. The aim of this study was to investigate the acute effect of eccentric and concentric training on activities of the antioxidant enzymes in physical education student's blood samples. Twenty four females students volunt...

2017
Min Liu Xinling Song Jianjun Zhang Chen Zhang Zheng Gao Shangshang Li Huijuan Jing Zhenzhen Ren Shouxian Wang Le Jia

The present work investigated the protective effects on liver, kidneys and pancreas of spent mushroom compost polysaccharide (SCP) and its hydrolysates (enzymatic- (ESCP) and acid-hydrolyzed SCP (ASCP)) from Hypsizigus marmoreus, in streptozotocin (STZ)-induced diabetic mice. The results showed that enzymatic (superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) and catalase (CAT)) and n...

Journal: :Indian journal of experimental biology 2001
S Sharma R Sharma

Free radicals are produced through biological processes and environmental interactions. They are metabolised by the enzymatic and non-enzymatic antioxidants present in the tissues. In this study, a 90 days long feeding of high fat diet to rats, resulted in significantly elevating the lipid and oxidative stress levels of the rat liver and blood as became evident from the changes in the levels of...

Journal: :Romanian journal of morphology and embryology = Revue roumaine de morphologie et embryologie 2011
Ioana Scrobotă Teodora Mocan C Cătoi P Bolfă Adriana Mureşan G Băciuţ

Aerobic life is connected with continuous production of free radicals, particularly reactive oxygen species (ROS). Cells posses an enzymatic and non-enzymatic antioxidant system to maintain redox homeostasis. Oxidant-antioxidant imbalance resulting in excessive accumulation of ROS is defined as oxidative stress. Oral lichen planus (OLP) is a chronic inflammation of unknown etiology. Several res...

Journal: :African journal of traditional, complementary, and alternative medicines : AJTCAM 2008
P Pavana S Sethupathy K Santha S Manoharan

The aim of the present study was to evaluate the effects of aqueous seed extract of Tephrosia purpurea (TpASet) on blood glucose and antioxidant status in streptozotocin induced diabetic rats. Hyperglycemia associated with an altered hexokinase and glucose-6-phosphatase activities, elevated lipid peroxidation, disturbed enzymatic [Superoxide dismutase (SOD), catalase (CAT) and glutathione perox...

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