Diabetes Mellitus, Experimental 74 Rats 50 rat 50 animal experiment 48 Male 46 article 42 endocrine system 42 Animals 40 nonhuman 40 Animal 34 diabetes mellitus 30 animal model 28 male 28 radioisotope 28 streptozocin 28 priority journal 26 Rats, Inbred Strains 22 animal cell 22 experimental diabetes mellitus 22 Female 20 streptozocin diabetes 20 Support, Non-U.S. Gov't 18 animal 18 insulin 18 unclassified drug 18 metabolism 16 Estradiol 14 Insulin 14 acetylsalicylic acid 14 central nervous system 14