vasoactive-intestinal-peptide and bepafant

vasoactive-intestinal-peptide has been researched along with bepafant* in 2 studies

Other Studies

2 other study(ies) available for vasoactive-intestinal-peptide and bepafant

Article	Year
Effect of platelet-activating factor and its antagonists on colonic dysmotility and tissue levels of colonic neuropeptides. European journal of pharmacology, 1994, Apr-11, Volume: 256, Issue:1 We investigated whether platelet-activating factor (PAF) alters colonic tissue levels of substance P and vasoactive intestinal peptide (VIP), two neuropeptides that regulate colonic motility. Left colons were harvested from NZ White Rabbits and underwent vascular perfusion via the inferior mesenteric artery. Strain gauge transducers were sewn onto the serosal surface of the colon to evaluate colonic motility. Colons were perfused with either buffered saline alone or with 5.0 x 10(-5) M PAF. PAF administration increased tissue VIP and substance P levels and decreased the force of colonic contractions. Pretreatment with WEB-2170 or alprazolam decreased concentrations of both tissue neuropeptides, and decreased the force of colonic contractions and minute motility index. These results suggest that both VIP and substance P are stimulated by PAF and may participate in colonic dysmotility during inflammatory states. Topics: Alprazolam; Animals; Azepines; Colitis; Colon; Gastrointestinal Motility; In Vitro Techniques; Iodine Radioisotopes; Neuropeptides; Platelet Activating Factor; Rabbits; Substance P; Triazoles; Vasoactive Intestinal Peptide	1994
Nitric oxide synthase inhibitors 7- and 6-nitroindazole relax smooth muscle in vitro. European journal of pharmacology, 1994, Apr-11, Volume: 256, Issue:1 7-Nitroindazole induced concentration-dependent relaxation of precontracted rabbit aorta, dog middle cerebral artery, rat anococcygeus muscle and rat stomach fundus. Relaxations to 7-nitroindazole in rabbit aorta were unaffected by nitric oxide synthase blockade or endothelial removal. 6-Nitroindazole also caused concentration-dependent relaxation in dog middle cerebral artery and rabbit aorta, being equipotent with 7-nitroindazole in both tissues. These data suggest that indazole derivatives can induce an endothelium- and nitric oxide synthase-independent relaxation of smooth muscle in vitro. Topics: Alprazolam; Animals; Azepines; Colitis; Colon; Gastrointestinal Motility; In Vitro Techniques; Iodine Radioisotopes; Neuropeptides; Platelet Activating Factor; Rabbits; Substance P; Triazoles; Vasoactive Intestinal Peptide	1994

Article

Year

Effect of platelet-activating factor and its antagonists on colonic dysmotility and tissue levels of colonic neuropeptides.

European journal of pharmacology, 1994, Apr-11, Volume: 256, Issue:1

We investigated whether platelet-activating factor (PAF) alters colonic tissue levels of substance P and vasoactive intestinal peptide (VIP), two neuropeptides that regulate colonic motility. Left colons were harvested from NZ White Rabbits and underwent vascular perfusion via the inferior mesenteric artery. Strain gauge transducers were sewn onto the serosal surface of the colon to evaluate colonic motility. Colons were perfused with either buffered saline alone or with 5.0 x 10(-5) M PAF. PAF administration increased tissue VIP and substance P levels and decreased the force of colonic contractions. Pretreatment with WEB-2170 or alprazolam decreased concentrations of both tissue neuropeptides, and decreased the force of colonic contractions and minute motility index. These results suggest that both VIP and substance P are stimulated by PAF and may participate in colonic dysmotility during inflammatory states.

Topics: Alprazolam; Animals; Azepines; Colitis; Colon; Gastrointestinal Motility; In Vitro Techniques; Iodine Radioisotopes; Neuropeptides; Platelet Activating Factor; Rabbits; Substance P; Triazoles; Vasoactive Intestinal Peptide

1994

Nitric oxide synthase inhibitors 7- and 6-nitroindazole relax smooth muscle in vitro.

European journal of pharmacology, 1994, Apr-11, Volume: 256, Issue:1

7-Nitroindazole induced concentration-dependent relaxation of precontracted rabbit aorta, dog middle cerebral artery, rat anococcygeus muscle and rat stomach fundus. Relaxations to 7-nitroindazole in rabbit aorta were unaffected by nitric oxide synthase blockade or endothelial removal. 6-Nitroindazole also caused concentration-dependent relaxation in dog middle cerebral artery and rabbit aorta, being equipotent with 7-nitroindazole in both tissues. These data suggest that indazole derivatives can induce an endothelium- and nitric oxide synthase-independent relaxation of smooth muscle in vitro.

1994