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Impairment of blood perfusion in gastric mucosa results in the formation of erosions and ulcers. Nitric oxide (NO), produced via activity of NO-synthase (NOS), appears to be a one of major factors, involved in the regulation of the gastric blood flow (GBF). Inhibition of this enzyme by N-nitro-L-arginine (L-NNA) results in local decrease of NO production, reduces GBF and impairs gastric mucosal integrity,...
Gastric microcirculation plays an important role in the maintenance of the gastric mucosal barrier and mucosal integrity. Sensory nerves are involved in the regulation of mucosal blood circulation and mucosal defense. Therefore, the ablation of these nerves by neurotoxic doses of capsaicin provides the possibility of determination of their role in gastric mucosal integrity. Stress ulceration represents...
The experimental model of acute gastritis such as water immersion restraint (WRS) stress-induced gastric injury is useful tool in examination of pathomechanism of acute gastritis. Nitric oxide (NO) plays an important role in the maintenance of gastric barrier, however, the interaction between reactive oxygen species (ROS) and NO on gastric mucosal integrity has been little studied. The purpose of...
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