PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9068945-9 1997 As measured by rhodopsin levels 2 weeks after light exposure, DMTU-treated rats exhibited no loss of photoreceptor cells, whereas those not given the antioxidant lost over 50% of their photoreceptors. 1,3-dimethylthiourea 62-66 rhodopsin Rattus norvegicus 15-24