EurekaMag
+ Translate
+ Most Popular
The pigeon tick (Argas reflexus): its biology, ecology, and epidemiological aspects
Prevalence of hemoglobin abnormalities in Kebili (Tunisian South)
Lipogranuloma: a preventable complication of dacryocystorhinostomy
Value of basal plasma cortisol assays in the assessment of pituitary-adrenal insufficiency
Bees from the Belgian Congo. The acraensis group of Anthophora
Placing gingival retraction cord
Total serum IgE, allergy skin testing, and the radioallergosorbent test for the diagnosis of allergy in asthmatic children
Acariens plumicoles Analgesoidea parasites des oiseaux du Maroc
Injuries of terminal phalanges of the fingers in children
Biology of flowering and nectar production in pear (Pyrus communis)
Das Reliktvorkommen der Aspisviper (Vipera aspis L.) im Schwarzwald
Hydrological modelling of drained blanket peatland
Pathologic morphology and clinical significance of the anomalous origin of the left circumflex coronary artery from the right coronary artery. General review and autopsy analysis of 30 cases
Cyto genetic analyses of lymphocyte cultures after exposure to calcium cyclamate
Axelrodia riesei, a new characoid fish from Upper Rio Meta in Colombia With remarks concerning the genus Axelrodia and description of a similar, sympatric, Hyphessobrycon-species
Favorable evolution of a case of tuberculosis of pancreas under antibiotic action
RIFM fragrance ingredient safety assessment, Valencene, CAS Registry Number 4630-07-3
Parenteral microemulsions: an overview
Temperate pasture: management for grazing and conservation
Evaluation of a new coprocessed compound based on lactose and maize starch for tablet formulation
Thermal expansion and cracking of three confined water-saturated igneous rocks to 800C
Revision of the genera of the tribe Stigmoderini (Coleoptera: Buprestidae) a discussion of phylogenetic relationships
Anal tuberculosis. Report of a case
Gastric tuberculosis in the past and present
Adaptive responses of the cardiovascular system to prolonged spaceflight conditions: assessment with Holter monitoring

Non-step intracellular voltage response of epithelial and oxyntic cells in frog gastric mucosa


Non-step intracellular voltage response of epithelial and oxyntic cells in frog gastric mucosa



Biochimica et Biophysica Acta 514(1): 145-151



ISSN/ISBN: 0006-3002

PMID: 309770

DOI: 10.1016/0005-2736(78)90084-6

Intracellular analyses of the electrical potential response to current pulses were performed in epithelial and oxyntic cells of the frog gastric mucosa. Independently of the use of Cl- or SO(2-)4 solutions and of the transmucosal potential difference measured, the resistance and slow potential changes observed across the mucosal surface of epithelial cells are not different from those registered across the serosal surface. In the oxyntic cells the resistance and slow potential changes are significantly higher across the mucosal than across the serosal surface, when the solution in contact with the serosal surface is positive with respect to the solution in contact with the mucosal surface. These differences were not observed when the transmucosal potential difference was reversed. It is proposed that the ionic concentration changes, by effect of current flow across the mucosa, occur in the oxyntic cells and that these changes are the origin of the slow transmucosal potential change. The epithelial cells act as a passive shunt.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 040815035

Download citation: RISBibTeXText

Related references

Histamine reduces intracellular chloride concentration in surface epithelial cells of frog gastric mucosa evidence for ionic coupling of surface epithelial and oxyntic cells. Renal Physiology: 95, 1986

Intracellular pH in oxyntic cells of intact frog gastric mucosa Role of bicarbonate. Gastroenterology 104(4 Suppl. ): A189, 1993

Intracellular pH in oxyntic cells of intact frog gastric mucosa Role of luminal acid. Gastroenterology 104(4 Suppl. ): A200, 1993

Relative conductances in surface epithelial and oxyntic cells in frog gastric mucosa. Biophysical Society Annual Meeting Abstracts 15: 80A, 1971

Histamine reduces Cl- activity in surface epithelial cells of frog gastric mucosa. Suggestive evidence for ionic coupling between surface epithelial and oxyntic cells. Pflugers Archiv: European Journal of Physiology 406(2): 204-211, 1986

Histamine reduces chloride activity in surface epithelial cells of frog gastric mucosa suggestive evidence for ionic coupling between surface epithelial and oxyntic cells. Pfluegers Archiv European Journal of Physiology 406(2): 204-211, 1986

Asymmetrical response of oxyntic cells to direct current in nonstimulated frog gastric mucosa. Biochimica et Biophysica Acta 219(2): 518-520, 1970

Effects of elevated potassium ion on transient voltage response of frog gastric mucosa to step currents. Federation Proceedings 33(5 Part 2): 1513, 1974

Unstirred layer model and voltage response to step currents in in vitro frog gastric mucosa. Biophysical Society Annual Meeting Abstracts 14: 32A, 1970

Intracellular potassium activity in epithelial cells of frog fundic gastric mucosa. Pflugers Archiv: European Journal of Physiology 383(2): 99-103, 1980

A method for preparing oxyntic cells from frog gastric mucosa. Journal of Applied Physiology 32(5): 714-717, 1972

Cl- - and K+-related fluctuations of ionic current through oxyntic cells in frog gastric mucosa. American Journal of Physiology 245(6): G797-G807, 1983

Transport properties of the basolateral membrane of the oxyntic cells in frog fundic gastric mucosa. Pflugers Archiv: European Journal of Physiology 414(4): 469-476, 1989

Mechanism of base exit across the basolateral membrane of oxyntic cells of frog gastric mucosa. Pfluegers Archiv European Journal of Physiology 406(Suppl.): R52, 1986

Permeability to the passive movement of ions through the epithelial and oxyntic cells in gastric mucosa. Acta Cientifica Venezolana 22(Suppl. 1): 15, 1971