PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9784914-7 1998 In the male rat, castration decreases while oestrogen and testosterone, but not 5 alpha-dihydrotestosterone (5 alpha-DHT), increase the density of 5-HT2A receptors in forebrain. Testosterone 58-70 5-hydroxytryptamine receptor 2A Rattus norvegicus 147-153