The invention relates to the technical field of
biology, in particular to a biomarker related to
obesity and application of the biomarker. According to the method, the correlation between the Irisin level in the
plasma exosome and
animal fat metabolism is utilized, rat models with different
obesity degrees are established, and the correlation between the Irisin level in the
plasma and the
plasma exosome and various fat related indexes is compared and analyzed. The result shows that the Irisin level in the plasma
exosome is positively correlated with the
body weight, the
fat mass, the fat rate and the like and is negatively correlated with the lean
mass rate, and the correlation is higher than that of the plasma Irisin level. The Irisin level in the plasma exosome is detected, so that the fat rate of an
animal body can be more accurately evaluated, the problems of complicated operation, incapability of quantification, narrow application range and the like of an existing fat detection method are solved, a more effective detection means is provided for related fields, and
weight control of obese people is facilitated.