Santamaria-Juarez C, Atonal-Flores F, Diaz A, Sarmiento-Ortega VE, Garcia-Gonzalez M, Aguilar-Alonso P, Lopez-Lopez G, Brambila E, Treviño S. Aortic dysfunction by chronic cadmium exposure is linked to multiple metabolic risk factors that converge in anion superoxide production.
Arch Physiol Biochem 2022;
128:748-756. [PMID:
32067514 DOI:
10.1080/13813455.2020.1726403]
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Abstract
CONTEXT
The chronic exposure to Cadmium (Cd) constitute an risk to develop hypertension and cardiovascular diseases associated with the increase of oxidative stress.
OBJECTIVE
In this study, we investigate the role of metabolic changes produced by exposure to Cd on the endothelial dysfunction via oxidative stress.
METHODS
Male Wistar rats were exposed to Cd (32.5-ppm) for 2-months. The zoometry and blood pressure were evaluated, also glucose and lipids profiles in serum and vascular reactivity evaluated in isolated aorta rings.
RESULTS
Rats exposed to Cd showed an increase of blood pressure and biochemical parameters similar to metabolic syndrome. Additionally, rats exposed to Cd showed a reduced relaxation in aortic rings, which was reversed after the addition of SOD and apocynin an inhibitor of NADPH.
CONCLUSION
The Cd-exposition induced hypertension and endothelial injury by that modifying the vascular relaxation and develop oxidative stress via NADPH oxidase, superoxide and loss nitric oxide bioavailability.
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