PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 14639089-1 2003 Although nifedipine and other conventional calcium antagonists elicit preferential vasodilation of renal afferent arterioles, we demonstrate that mibefradil and nickel, T-type calcium channel blockers, reverse the angiotensin II-induced constriction of both afferent and efferent arterioles. Nickel 161-167 angiotensinogen Rattus norvegicus 214-228