When rats have a heart attack and are given metformin, their blood shows changes in certain natural chemicals—some go down, like arginine and tryptophan, while others, like azelaic acid, go up.

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Evidence from Studies

Supporting (1)

10

Community contributions welcome

10

Metformin attenuates post-infarction cardiac remodelling in rats, associated with changes in oxidative stress, energy metabolism, gut microbiota and metabolomics

Cohort Study

Animal

The scientists gave metformin to rats after heart attacks and found that it changed certain chemicals in their blood exactly as the claim says — some went down, some went up.

Contradicting (0)

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No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Source Study

Metformin attenuates post-infarction cardiac remodelling in rats, associated with changes in oxidative stress, energy metabolism, gut microbiota and metabolomics

Score: 10

DOI: 10.1093/eurheartj/ehaf784.1910

Similar Assertions

When rats have a heart attack, giving them metformin (a common diabetes drug) seems to help lower harmful stress in their heart tissue, compared to rats that don’t get the drug.

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When rats have a heart attack and are given metformin, their hearts show less thickening and scarring, even though the size of the damage and overall heart function don’t get better or worse.

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In diabetic rats and mice, a common diabetes drug called metformin helps protect the heart after a heart attack by making the body use insulin better and lowering harmful stress in the cells.

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