ArticleThe journal of physiological sciences : JPS2018
Gastric vascular and motor responses to anaphylactic hypotension in anesthetized rats, in comparison to those with hemorrhagic or vasodilator-induced hypotension.
Article in The journal of physiological sciences : JPS, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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3 citing papers in PubMed, 6 citations in OpenAlex.
- PPAR-γ Activation Alleviates Intestinal Dysfunction and Lactose Malabsorption in Experimental Food Allergy Rats.Nutrients · 2026Article
- Tonic contraction develops in the colon during anaphylactic hypotension in anesthetized rats.The journal of physiological sciences : JPS · 2019Article
- Renal response to anaphylaxis in anesthetized rats and isolated perfused rat kidneys: roles of nitric oxide.The journal of physiological sciences : JPS · 2018Article
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Authors and funding
6 authors at 3 institutions in 2 countries.
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Abstract
Anaphylactic shock is life-threatening, but pathophysiology of the stomach lesion remains unclear. We determined gastric hemodynamics and gastric functions during anaphylactic hypotension, as compared to hypotension induced by hemorrhage or sodium nitroprusside (SNP) in anesthetized and ovalbumin-sensitized Sprague-Dawley rats. Systemic arterial pressure, portal venous pressure, and gastric arterial blood flow were measured, and gastric vascular resistance (GVR) was determined. Separately, the intragastric pressure (IGP) and gastric effluent, as a measure of gastric flux, were continuously measured. During anaphylaxis, GVR decreased only transiently at 0.5 min, followed by an increase. IGP increased markedly, while gastric flux decreased. During hemorrhage, GVR and IGP increased, while gastric flux did not change. When SNP was injected, both GVR and IGP decreased and gastric flux increased only just after injection. In conclusion, gastric vasodilatation occurs only transiently after antigen injection, and gastric motility increases, but gastric emptying deceases during anaphylactic hypotension in anesthetized rats.
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