FN1 and diabetic kidney disease: Wang et al. found that FN1 was associated with immune infiltration in diabetic nephropathy [43], Su et al. reported that FN1 could regulate the process of renal fibrosis [44], Zhao et al. disclosed that FN1 was involved in rat H9C2 cardiomyocyte growth by regulating cell cycle arrest [45], and Patel et al. discovered that the expression of FN1 increased in patients with sudden cardio death [46].