Hypertension Clinical Trial
Official title:
Nitrite Modulation of Hypertension, Platelet Activation, and Endothelial and Mitochondrial Function
The objective of the study is to investigate effects of inorganic sodium nitrite on the cardiometabolic and hormonal disturbances observed in a targeted population of overweight/obese adults with metabolic syndrome and hypertension, at risk for insulin resistance and endothelial dysfunction.
Cardiovascular disease remains the leading cause of death in the United States and worldwide. Several studies have demonstrated that fruit and vegetable rich diets significantly reduced blood pressure and reduced the risk of ischemic stroke and cardiovascular disease in general, the exact mechanisms remain poorly understood. Preclinical and clinical research over the last decade has revealed the important vasoprotective effects of nitrates and nitrites with regards to reduction in blood pressure, vascular inflammation and endothelial dysfunction. More recent findings suggest that inorganic nitrate and nitrite therapy may be involved in the regulation of glucose-insulin homeostasis. For this reason, development of an oral formulation of nitrite salt represents a rational avenue of exploration for the treatment of cardiovascular diseases, whereby nitrite would ensure rapid acting effects upon absorption. Nitrite could then be oxidized to nitrate via the enterosalivary circulation pathway. In this pathway, about 25% of circulating nitrate is concentrated in the saliva and reduced to nitrite by commensal mouth bacteria with nitrate reductase enzymes. The proposal will investigate the inorganic nitrite effects (in any form) on insulin sensitivity in a targeted population of overweight/obese adults with metabolic syndrome and hypertension, at risk for insulin resistance and endothelial dysfunction. This will be the third human trial using orally delivered nitrite (previously as aqueous solution). ;
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