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Depression: 21st Century Solutions + The Dark Side of Wheat

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Abstract Title:

Protective Effect of Carvacrol on Oxidative Stress and Cellular DNA Damage Induced by UVB Irradiation in Human Peripheral Lymphocytes.

Abstract Source:

J Biochem Mol Toxicol. 2015 Nov ;29(11):497-507. Epub 2010 May 21. PMID: 26768646

Abstract Author(s):

Balakrishnan Aristatile, Khalid S Al-Numair, Abdullah H Al-Assaf, Chinnadurai Veeramani, Kodukkur Viswanathan Pugalendi

Article Affiliation:

Balakrishnan Aristatile

Abstract:

Exposure to ultraviolet B (UVB; 280-320 nm) radiation induces the formation of reactive oxygen species (ROS) in the biological system. In this study, we examined the protective effect of carvacrol on UVB-induced lipid peroxidation and oxidative DNA damage with reference to alterations in cellular an-tioxidant status in human lymphocytes. A series of in vitro assays (hydroxyl radical, superoxide, nitric oxide, DPPH (2,2-Diphenyl-1-picryl hydrazyl), and ABTS (2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging assays) demonstrate antioxidant property of carvacrol in our study. UVB exposure significantly increased thiobarbituric acid reactive substances (TBARS), lipid hydroperoxides (LHPs), % tail DNA and tail moment; decreased % cell viability and antioxidant status in UVB-irradiated lymphocytes. Treatment with carvacrol 30 min prior to UVB-exposure resulted in a significant decline of TBARS, LHP, % tail DNA, and tail moment and increased % cell viability as carvacrol concentration increased. UVB irradiated lymphocytes with carvacrol alone (at 10μg/mL) gave no significant change in cell viability, TBARS, LHP, % tail DNA, and tail moment when compared with normal lymphocytes. On the basis of our results, we conclude that carvacrol, a dietary antioxidant, mediates its protective effect through modulation of UVB-induced ROS.

Study Type : Human In Vitro

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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