[Electroneutrality of the gastric fluids in the dog in vivo with Heidenhain denervated gastric pouches].
Ionic fluxes and electroneutrality were studied during HCl and fatty acids perfusion through canine Heidenhain pouches. Fatty acids at low concentrations were incapable of modifying the percentages of ionic movements observed during HCl perfusion. In spite fatty acids induced modest signs of gastric mucosal injury like increased disappearance of H+, increased appearance of Na+ in the contents, reduction in potential difference. Results obtained either in the presence or absence of fatty acids showed: 1. at low HCl concentration exchange-diffusion of Na+ for H+ occurred at 1:1 mole basis; 2. at high HCl concentrations increased movement of H+ to blood and decreased movement of Na+ to gastric contents caused a greater diffusion of Cl- out of pouches.
D000818:Animals; D002712:Chlorides / Q000032:analysis; D004285:Dogs; D005750:Gastric Juice / Q000032:analysis; D005753:Gastric Mucosa / Q000378:metabolism*; D011188:Potassium / Q000032:analysis; D012964:Sodium / Q000032:analysis; D013270:Stomach / Q000502:physiology*
D002712:Chlorides; D012964:Sodium; D011188:Potassium
Elettroneutralita' dei fluidi gastrici nel cane "in vivo" con tasche gastriche denervate alla Heidenhain.