Title : Dietary nitrate supplementation alters the oral microbiome but does not improve the vascular responses to an acute nitrate dose.

Pub. Date : 2019 Aug 1

PMID : 31051259






4 Functional Relationships(s)
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1 Nitrate (NO3-) contained in food and beverages can transiently increase nitric oxide (NO) availability following a stepwise reduction to nitrite (NO2-) by commensal bacteria in the oral cavity. Nitrogen Dioxide NBL1, DAN family BMP antagonist Homo sapiens
2 We tested the hypothesis that regular ingestion of dietary NO3- would influence the oral microbiome, the capacity to reduce NO3- to NO2- in saliva, and the vascular responses to an acute dose of NO3-. Nitrogen Dioxide NBL1, DAN family BMP antagonist Homo sapiens
3 As expected, saliva and plasma NO2- and NO3- were significantly elevated after NO3- supplementation (all P < 0.05) but not placebo. Nitrogen Dioxide NBL1, DAN family BMP antagonist Homo sapiens
4 Despite these alterations to the oral microbiota, an acute dose of NO3- increased salivary and plasma NO2-, reduced systolic blood pressure and increased the response to flow mediated dilation to a similar extent before and after 7 days of supplementation (P > 0.05). Nitrogen Dioxide NBL1, DAN family BMP antagonist Homo sapiens