PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 33673282-5 2021 The reduction of the BDNF serum level after co-administration of DPCPX and istradefylline with Mg2+ and Zn2+ was noted. 1,3-dipropyl-8-cyclopentylxanthine 65-70 brain derived neurotrophic factor Mus musculus 21-25