A study in humans demonstrated that the mir-4797-5p was selected from a microarray but showed no specific amplification in pooled samples of vaginal secretion, semen, saliva, venous blood, or menstrual body fluids [Sauer et al. DOI:10.1016/j.fsigen.2016.01.018]. A study in humans demonstrated that the mir-4797-5p was differentially expressed and shared across two pairs of monozygotic twins, as identified through miRNA microarray analysis of blood samples from Han Chinese twin pairs, suggesting its potential role as a biomarker for distinguishing genetically identical individuals [Xiao et al. DOI:10.1016/j.fsigen.2019.05.003].