PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14741437-7 2004 These data suggest that interactions between RXR and morphine are involved in the immune effects of retinoids on TNF-alpha production by activated U937 cells. Retinoids 100-109 retinoid X receptor alpha Homo sapiens 45-48