PMID-sentid	Pub_year	Sent_text		comp_official_name	comp_offsetprotein_name	organism	prot_offset
28474563-6	2017	Long-term exposure to morphine and oxycodone has proven to up-regulate the expression of ABC transporters, such as P-gp, BCRP and MRPs, at the BBB, which may lead to increased tolerance to the antinociceptive effects of such drugs.	Oxycodone	35-44	ATP binding cassette subfamily G member 2 (Junior blood group)	Homo sapiens	121-125