Sulfur dioxide, a double-faced molecule in mammals
Xin-Bao Wang1, Jun-Bao Du2, Hong Cui1
1Department of Pediatrics, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, PR China.
Abstract:
Sulfur dioxide (SO2) is a common air pollutant and is detrimental to many organs. Its toxic effects including oxidative damage, deoxyribonucleic acid (DNA) damage and inflammation have been extensively studied. However, recent studies showed that SO2 can be generated endogenously in mammals. In contrast to the toxic effects of SO2, protective effects have also been found in mammals. Endogenous SO2 has antioxidant, anti-inflammatory, anti-hypertension, and anti-atherogenic effects and regulates vascular tone and cardiac function in mammals. SO2 may have a dual role in regulating physiological and pathophysiological effects in mammals. The biological effects of SO2 in mammals are reviewed in this study.
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