Circadian rhythm in gastric mucosal blood flow in fasting rat stomach

1991 ◽  
Vol 51 (4) ◽  
pp. 275-280 ◽  
Author(s):  
Kenneth R. Larsen ◽  
Merril T. Dayton ◽  
John G. Moore
Keyword(s):  
Blood Flow ◽  
Circadian Rhythm ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Rat Stomach

Adenosine A2-receptor mediates ethanol-induced arteriolar dilation in rat stomach

1996 ◽  
Vol 271 (6) ◽  
pp. G1028-G1033 ◽  
Author(s):  
H. Nagata ◽  
E. Sekizuka ◽  
T. Morishita ◽  
M. Tatemichi ◽  
T. Kurokawa ◽  
...  
Keyword(s):  
Blood Flow ◽  
Receptor Antagonist ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Human Calcitonin ◽  
Rat Stomach ◽  
Microscopy Technique ◽  
Vasoactive Substances ◽  
Adenosine A2 Receptor

Topical application of ethanol to the gastrointestinal mucosa induces vasodilation. Using an in vivo microscopy technique, we studied the effect of topical ethanol on the submucosal microvessels that control mucosal blood flow in the rat stomach and identified vasoactive substances and receptors that mediate the ethanol vasoaction. Topical ethanol (1-20%) dilated submucosal arterioles dose dependently, but did not change venular diameters. An inhibitor of alcohol dehydrogenase, 1 mM 4-methylpyrazole, did not alter the ethanol vasoaction. Ethanol-induced arteriolar dilation was eliminated by adenosine deaminase, but other vasodilator inhibitors such as atropine, pyrilamine, indomethacin, human calcitonin gene-related peptide-(8-37), and N omega-nitro-L-arginine methyl ester did not prevent it. Ethanol-induced arteriolar dilation was inhibited by an adenosine A2-receptor antagonist, but not by an A1-receptor antagonist, whereas an A2-agonist, but not an A1-agonist, dose dependently dilated arterioles. Exogenous adenosine (10(-5)-10(-3) M) dilated arterioles to a similar extent as ethanol. This response was inhibited by an A2-antagonist. We conclude that nonmetabolized ethanol increases gastric mucosal blood flow via A2-receptors in submucosal arterioles.

An autoradiographic study of regional distribution of gastric mucosal blood flow

1988 ◽  
Vol 254 (4) ◽  
pp. G566-G574
Author(s):  
W. J. Angerson ◽  
J. G. Geraghty ◽  
D. C. Carter
Keyword(s):  
Blood Flow ◽  
Regional Distribution ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Autoradiographic Study ◽  
Acute Injury ◽  
Antral Mucosa ◽  
Blood Flows ◽  
Greater Curvature ◽  
Mucosal Folds

Iodo[14C]antipyrine autoradiography was used to measure gastric mucosal blood flow in anesthetized rats and to study regional distribution. Blood flows of 61 +/- 8 ml.100 g-1.min-1 (means +/- SE) in corpus and 84 +/- 9 ml.100 g-1.min-1 in antral mucosa compared well with previously reported measurements by hydrogen clearance. Blood flow in the crests of corpus mucosal folds was significantly higher than in the valleys between folds, indicating that the greater susceptibility of the former areas to acute injury, documented in several studies, is not associated with a perfusion defect in the resting stomach. Corpus mucosal blood flow was also higher in the side walls of the stomach than in the greater curvature region, and in distal than in proximal locations. No systematic regional variations within antral mucosa were demonstrated.

Gastric Mucosal Blood Flow Before and After TAE

1991 ◽  
Vol 3 (4) ◽  
pp. 513-518 ◽  
Author(s):  
Tadatoshi TSUCHIGAME ◽  
Kohshiro ITOH ◽  
Masafumi HAR ◽  
Okimitsu WATANABE ◽  
Youichi OHYAMA ◽  
...  
Keyword(s):  
Blood Flow ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Before And After

Endoscopic measurements of gastric mucosal blood flow in dogs

1985 ◽  
Vol 38 (5) ◽  
pp. 416-423 ◽  
Author(s):  
Stanley W. Ashley ◽  
Zhong-Yu Yan ◽  
David I. Soybel ◽  
Laurence Y. Cheung
Keyword(s):  
Blood Flow ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow

Gastric Mucosal Blood Flow Response to Stimulation and Inhibition of Gastric Acid Secretion

1988 ◽  
Vol 95 (3) ◽  
pp. 642-650 ◽  
Author(s):  
Josep M. Pique ◽  
Felix W. Leung ◽  
Heck W. Tan ◽  
Edward Livingston ◽  
Oscar U. Scremin ◽  
...  
Keyword(s):  
Blood Flow ◽  
Acid Secretion ◽  
Gastric Acid Secretion ◽  
Gastric Acid ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Blood Flow Response ◽  
Flow Response

Effect of Irsogladine Maleate on NSAID-Induced Reduction of Gastric Mucosal Blood Flow in Anesthetized Dogs

Digestion ◽  
2009 ◽  
Vol 79 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Motonori Sato ◽  
Noriaki Manabe ◽  
Jiro Hata ◽  
Manabu Ishii ◽  
Tomoari Kamada ◽  
...  
Keyword(s):  
Blood Flow ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow ◽  
Irsogladine Maleate ◽  
Anesthetized Dogs

scholarly journals Neural Control of Gastric Mucosal Blood Flow in the Rat

1975 ◽  
Vol 69 (4) ◽  
pp. 935-940 ◽  
Author(s):  
Paul H. Guth ◽  
Esther Smith
Keyword(s):  
Blood Flow ◽  
Neural Control ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow

scholarly journals Focal Gastric Mucosal Blood Flow in Aspirin-induced Ulceration

1987 ◽  
Vol 205 (4) ◽  
pp. 399-403 ◽  
Author(s):  
THEOPHILUS J. GANA ◽  
ROMAN HUHLEWYCH ◽  
JARLEY KOO
Keyword(s):  
Blood Flow ◽  
Mucosal Blood Flow ◽  
Gastric Mucosal Blood Flow
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