insulin receptor 26 article 20 controlled study 20 nonhuman 20 insulin 18 Animals 16 animal experiment 16 metabolism 16 Insulin 14 human 14 Female 12 Receptor, Insulin 12 animal 12 animal cell 12 female 12 insulin resistance 12 protein expression 12 protein kinase B 12 protein phosphorylation 12 signal transduction 12 Mice 10 cell proliferation 10 down regulation 10 human cell 10 mouse 10 obesity 10 priority journal 10 rat 10 Endocytosis 8 Humans 8