human tissue human 72 Article 71 Humans 63 controlled study 60 genetics 57 unclassified drug 46 adult 45 female 44 pathology 44 gene expression regulation 42 male 42 gene expression 40 Gene Expression Regulation, Neoplastic 38 metabolism 37 human cell 35 Female 32 down regulation 31 middle aged 31 upregulation 31 Male 30 Middle Aged 29 protein expression 28 major clinical study 27 prognosis 25 aged 22 cell proliferation 22 cancer prognosis 21 tumor marker 21 Cell Proliferation 20