Functional food science and defence against reactive oxidative species
نویسندگان
چکیده
منابع مشابه
Oxidative stress in the lung tissue--sources of reactive oxygen species and antioxidant defence.
Reactive oxygen species are oxygen-based molecules readily reacting with various compounds. It is already known that they play significant role in many physiological as well as pathological body processes. The aim of our review is to briefly summarize our knowledge of possible ROS sources in the lung tissue.
متن کاملPathological Roles of Reactive Oxygen Species and Their Defence Mechanisms
ion, hydrogen addition or electron transfer, while superoxide anion reacts via only hydrogen abstraction and electron transfer (Section 1.2) (5). Although, hydrogen peroxide and singlet oxygen are classified as ROS, they are not radicals and do not necessarily interact with tissue through radical reactions directly (6). Hence, they are not toxic per se but in presence of free radicals or cataly...
متن کاملOxidative stress and reactive oxygen species.
This article discusses different aspects concerning classification/nomenclature, biochemical properties and pathophysiological roles of reactive oxygen species (ROS) which are pivotal to interpret the concept of oxidative stress. In vitro studies in both the prokaryotes and eukaryotes clearly demonstrate that exogenous or constitutive and inducible endogenous sources of ROS together with cofact...
متن کاملReactive oxygen species and oxidative DNA damage.
Reactive oxygen species (ROS) such as the superoxide anion radical (O2.-) hydrogen peroxide (H2O2) and hydroxyl radical (.OH) have been implicated in the pathophysiology of various states, including ischemia reperfusion injury, haemorrhagic shock, atherosclerosis, heart failure, acute hypertension and cancer. The free radicals, nitric oxide (NO) and O2.- react to form peroxynitrite (ONOO-), a p...
متن کاملReactive oxygen species: Oxidative damage and pathogenesis
Reactive oxygen species (ROS) such as O2 – , H2O2 and .OH are highly toxic to cells. Cellular antioxidant enzymes, and the free-radical scavengers normally protect a cell from toxic effects of the ROS. However, when generation of the ROS overtakes the antioxidant defense of the cells, oxidative damage of the cellular macromolecules (lipids, proteins, and nucleic acids) occurs, leading finally t...
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ژورنال
عنوان ژورنال: British Journal of Nutrition
سال: 1998
ISSN: 0007-1145,1475-2662
DOI: 10.1079/bjn19980106