Douglas L. Vermillion

Learn More
We examined the release of acetylcholine (ACh) from jejunal longitudinal muscle-myenteric plexus preparations in noninfected control rats and in rats infected 6, 23, or 40 days previously with Trichinella spiralis. ACh release was assessed by preincubating the tissue with [3H]choline and measuring the evoked release of tritium. The uptake of 3H was(More)
  • R. Maria Saleth, Ariel Dinar, +32 authors Fulvia Toppin
  • 1999
ii ACKNOWLEDGEMENTS This study was supported by the budget allocation from the Rural Cluster within the Development Research Group, Visiting Research Fellows Program, and supplemental funds of the Rural Development Department, the World Bank. While the intellectual contributions of all the experts met in the sample countries are gratefully acknowledged,(More)
These studies were directed toward better characterization of the abnormalities of motor function in the large intestine of mutant mice with congenital aganglionosis and megacolon. Analysis of pressure-volume relations in the megacolon and aganglionic terminal segment showed increased intestinal wall compliance in the dilated colon and reduced wall(More)
Intrinsic inhibitory neurons to guinea pig taenia coli and small bowel circular muscle were activated by transmural electrical stimulation, and the postinhibitory contractile response of the muscle was utilized to evaluate whether or not the neuronal action of 5-hydroxytryptamine (5HT) was associated with the inhibitory neurons. The postinhibitory(More)
  • 1