PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 16309197-5 2005 Western blot analysis indicated that the induction of apoptosis by GA and ursolic acid was accompanied with an activation of caspase-8 and a reduction in the anti-apoptotic proteins, Bcl-2 and Bcl-xL, although the pro-apoptotic proteins, Bax and Bak, remained unaffected. ursolic acid 74-86 BCL2 associated X, apoptosis regulator Homo sapiens 238-241