PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 12686872-10 2003 This change in erectile function was a result of eNOS over expression with an increase in eNOS protein expression and constitutive NOS activity as well as an increase in nitric oxide biosynthesis, as reflected by an increase in cavernous nitrate plus nitrite formation. Nitrates 238-245 nitric oxide synthase 3 Rattus norvegicus 49-53