PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 32782734-8 2020 In addition, tramadol induced a significant decrease in Bcl-2 gene expression, and increase in Bax gene expression. Tramadol 13-21 BCL2 associated X, apoptosis regulator Rattus norvegicus 95-98