TGF‐β1 can be induced by many mediators of DKD, such as high glucose concentration, reactive oxygen species, advanced glycation end products, activated protein kinase C, renin‐angiotensin II‐aldosterone system components and endothelin,8, 9, 10 and are associated with the development of obesity and diabetes.11, 12. This evidence concerns the gene TGFB1 and diabetic kidney disease.