chemistry Article 73 controlled study 61 nonhuman 58 Animals 55 animal 55 unclassified drug 52 human 50 Humans 48 metabolism 45 plant extract 45 Plant Extracts 42 male 39 drug effect 37 Male 36 animal experiment 36 isolation and purification 30 animal model 26 plant leaf 26 rat 25 article 24 Antioxidants 23 IC50 23 Plant Leaves 23 antioxidant 23 chemical structure 23 drug effects 22 Rats 21 mouse 21 Molecular Structure 20