PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 27448526-2 2016 The three age groups did not differ at baseline in plasma corticosterone or progesterone concentrations, and P35 had lower concentrations of testosterone than did both P45 and P75 rats, which did not differ. Testosterone 141-153 cyclin-dependent kinase 5 regulatory subunit 1 Rattus norvegicus 109-112