female human 119 Humans 106 Article 104 male 100 genetics 99 Female 97 controlled study 94 adult 84 Male 69 gene expression 67 metabolism 63 gene expression regulation 59 middle aged 55 unclassified drug 54 major clinical study 53 Middle Aged 52 pathology 52 down regulation 49 upregulation 47 human tissue 44 Gene Expression Regulation, Neoplastic 43 human cell 37 aged 36 protein expression 34 Adult 33 nonhuman 31 Aged 28 case control study 28 cell proliferation 27