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  • Title: [Activation of hypothalamic-pituitary-adrenocortical system as important gastroprotective component of stress reaction].
    Author: Filaretova LP.
    Journal: Ross Fiziol Zh Im I M Sechenova; 2006 Feb; 92(2):249-61. PubMed ID: 16739658.
    Abstract:
    The review is focused on the action of glucocorticoids released during activation of hypothalamic-pituitary-adrenocortical axis, on the susceptibility of gastric mucosa to injury. The data support the idea that glucocorticoids produced in response to acute stress or other ulcerogenic stimuli have a gastroprotective action but not ulcerogenic one as it has generally been considered for some decades. It has been shown that gastroprotective action of glucocorticoids may be mediated by multiple actions, including maintenance of glucose homeostasis, gastric mucosal blood flow, mucus production and attenuation of enhanced gastric motility and microvascular permeability. For maintenance of gastric mucosal integrity glucocorticoids may cooperate with other gastroprotective factors. Glucocorticoid hormones exert a pivotal role in the maintenance of gastric mucosal integrity in the case of impaired gastroprotective mechanisms provided by prostaglandins, nitric oxide and capsaicin-sensitive sensory neurons. These findings indicate that activation of hypothalamic-pituitary-adrenocortical system could be considered as a significant hormonal gastroprotective component of stress reaction and therefore glucocorticoid hormones are natural gastroprotective factors.
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