Alteration of gut microbiota by a Westernized lifestyle and its correlation with insulin resistance in non‐diabetic Japanese men

摘要

The severity of insulin resistance is higher in Japanese‐American people with American lifestyles than in native Japanese people with Japanese lifestyles. Recently, the role of gut microbiota in the control of host metabolic homeostasis and organ physiology has been recognized. In addition, gut microbiota alterations have been suggested to contribute to pathogenesis of insulin resistance. The principle aim of the present study was to evaluate the impact of a Westernized lifestyle on the gut microbiota of Japanese‐Americans versus native Japanese, and its correlation with insulin resistance.