Animals 197 animal nonhuman 114 male 105 Article 95 controlled study 95 metabolism 94 Male 92 animal experiment 81 human 80 Humans 75 chemistry 72 rat 69 drug effect 65 Rats 63 female 60 animal model 59 Female 55 animal tissue 54 mouse 52 unclassified drug 50 pathology 48 Sprague Dawley rat 47 Rats, Sprague-Dawley 46 Mice 45 article 40 drug effects 37 Plant Extracts 35 antioxidant 35 plant extract 35