Endothelial Function is improved by Inducing Microbial Polyamine Production in the Gut: A Randomized...

Area of Science:

• Cardiovascular Health
• Gut Microbiome Research
• Nutritional Science

Background:

• Spermidine-induced autophagy is linked to reduced cardiovascular disease risk in mice.
• Intestinal bacteria are a primary source of polyamines like spermidine.
• Previous research showed Bifal and arginine increase putrescine, a spermidine precursor, in the gut.

Purpose of the Study:

• To investigate the impact of Bifal and Arg consumption on endothelial function in healthy individuals.
• To assess the effects of a Bifal + Arg yogurt intervention on vascular health markers.

Main Methods:

• A 12-week randomized, double-blinded, placebo-controlled study.
• 44 healthy participants with BMI near 25 consumed either Bifal + Arg yogurt or placebo yogurt.
• Endothelial function was measured using the reactive hyperemia index (RHI) via EndoPAT.

Main Results:

• The Bifal + Arg yogurt group showed a significantly greater improvement in RHI compared to the placebo group.
• Fecal and serum putrescine and serum spermidine levels were significantly higher in the Bifal + Arg yogurt group.
• Improved endothelial function and increased polyamine levels were observed.

Conclusions:

• Consuming Bifal + Arg yogurt enhances endothelial function in healthy individuals.
• The intervention leads to increased putrescine and spermidine production.
• This suggests a potential role for Bifal + Arg yogurt in preventing or reducing atherosclerosis risk.