free radicals and antioxidants “oxidative stress” in cadmium exposure workers

Free radicals, metals and antioxidants in oxidative stress-induced cancer.

Oxygen-free radicals, more generally known as reactive oxygen species (ROS) along with reactive nitrogen species (RNS) are well recognised for playing a dual role as both deleterious and beneficial species. The "two-faced" character of ROS is substantiated by growing body of evidence that ROS within cells act as secondary messengers in intracellular signalling cascades, which induce and maintai...

Effect of Free Radicals & Antioxidants on Oxidative Stress: A Review

Associate Professor, Department of Biochemistry, Sinhgad Dental College and Hospital, Pune 411 041, Maharashtra, India. email: [email protected] Associate Professor, Department of Biochemistry, Govt Medical College, Miraj 416 410, Maharashtra, India. Professor of Head, Department of Biochemistry, Dr. Vasantrao Pawar Medical College, Nashik 422 003, Maharashtra, India. * Abstract Rece...

Free radicals, oxidative stress and importance of antioxidants in human health

Received 13 March 2011 Revised 04 May 2011 Accepted 14 June 2011 Early online 01 July 2011 Print 31 July 2011 Reactive oxygen species (ROS) is a collective term used for oxygen containing free radicals, depending on their reactivity and oxidizing ability. ROS participate in a variety of chemical reactions with biomolecules leading to a pathological condition known as oxidative stress. Antioxida...

Molecular mechanisms of oxidative stress in aging: free radicals, aging, antioxidants and disease

Exercise, free radicals and oxidative stress.

This article reviews the role of free radicals in causing oxidative stress during exercise. High intensity exercise induces oxidative stress and although there is no evidence that this affects sporting performance in the short term, it may have longer term health consequences. The mechanisms of exercise-induced oxidative stress are not well understood. Mitochondria are sometimes considered to b...

Free Radicals, Oxidative Stress and Oxidative Damage in Parkinson's Disease

Parkinson’s disease (PD) is an adult-onset disease of unknown etiology, with a prevalence of 0.3% in the entire population, affecting more than 1% of humans over 60 years of age. Primary degeneration occurs in pigmented dopamine-containing neurons in the pars compacta of the substantia nigra, with projections to the striatum and typical motor signs that appear with a loss of 60% of the dopamine...