title: [Effect of peptide with histidine and isoleucine amide on isolated circular muscle of portal vein of guinea pig].
mesh_terms: D000818:Animals; D005260:Female; D006168:Guinea Pigs; D066298:In Vitro Techniques; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009131:Muscle, Smooth, Vascular / Q000187:drug effects; D010451:Peptide PHI / Q000494:pharmacology*; D011169:Portal Vein; D014660:Vasoactive Intestinal Peptide / Q000037:antagonists & inhibitors
chemical_list: D010451:Peptide PHI; D014660:Vasoactive Intestinal Peptide