In rats, higher levels of certain mouth bacteria were linked to lower blood pressure, showing how the mouth's bacteria might help control blood pressure.

Evidence Quality Assessment

Claim Status

appropriately stated

Study Design Support

Design supports claim

Appropriate Language Strength

association

Can only show association/correlation

Assessment Explanation

The study is an animal model showing association between bacterial abundance and blood pressure. The verb 'showed significant inverse correlations' is appropriate for this correlational finding in an animal study.

More Accurate Statement

“Wistar rats using a nitrate-containing mouth rinse were associated with significant inverse correlations between diastolic blood pressure and the relative abundance of specific bacteria (Staphylococcus, Veillonella, Streptococcus, and Neisseria), suggesting a link between oral microbiome composition and blood pressure regulation.”

Evidence from Studies

Supporting (1)

Functional mouth rinse containing inorganic nitrate and antioxidants bolsters the enterosalivary pathway and lowers blood pressure in Wistar rats

Randomized Controlled Trial

Animal

2025 Jul 23

Contradicting (0)

No contradicting evidence found

Source Study

Functional mouth rinse containing inorganic nitrate and antioxidants bolsters the enterosalivary pathway and lowers blood pressure in Wistar rats

Score: 16

DOI: 10.1038/s41598-025-12060-0

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