EPCAM and obesity due to melanocortin 4 receptor deficiency: A study compared the exosomal markers and miRNAs of milk from 47 mothers with normal body weight before pregnancy and 18 mothers with obesity, and reported that CD326 (EpCaM) was the most expressed marker in both groups, and miRNA-30b-5p, miRNA-4454, miRNA-494-3p, and let-7 were the most abundant miRNAs [114].