title: Enzymatic antioxidants and its role in oral diseases.
abstract: Antioxidants are substances that when present at very low concentration inhibits the oxidation of a molecule. It has the capacity to nullify the ill effects of oxidation caused by free radicals in the living organisms. The unpaired electrons of these free radicals are highly reactive and neutralize the harmful reactions of human metabolism. Protection of the body against free radicals is provided by some enzymes which come under a distinctive group, concerned solely with the detoxification of these radicals. Superoxide dismutase (SOD), glutathione peroxidase (GPX) and catalase are the key enzymatic antioxidants of this defense system by which the free radicals that are produced during metabolic reactions are removed. This review highlights the mechanism of action of enzymatic antioxidants SOD, GPX and catalase and its role in oral disease.
authors.affiliation: Department of Oral Pathology and Microbiology, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: J Sathiya
authors.initials: JS
authors.lastname: Jeeva
authors.affiliation: Department of Oral Pathology and Microbiology, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: J
authors.initials: J
authors.lastname: Sunitha
authors.affiliation: Department of Oral Pathology and Microbiology, Thai Moogambigai Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: R
authors.initials: R
authors.lastname: Ananthalakshmi
authors.affiliation: Department of Oral Pathology and Microbiology, Sathyabama Dental College and Hospital, Chennai, Tamil Nadu, India.
authors.forename: S
authors.initials: S
authors.lastname: Rajkumari
authors.affiliation: Department of Oral Pathology and Microbiology, Vinayaka Mission Dental College and Hospital, Salem, Tamil Nadu, India.
authors.forename: Maya
authors.initials: M
authors.lastname: Ramesh
authors.affiliation: Department of Pedodontics, Vinayaka Mission Dental College and Hospital, Salem, Tamil Nadu, India.
authors.forename: Ramesh
authors.initials: R
authors.lastname: Krishnan
keywords: Catalase; enzymatic antioxidant; glutathione peroxidase; oral disease; superoxide dismutase