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The cingulate cortex and gastric pathology

P G Henke, R J Savoie

    Brain Research Bulletin
    |May 1, 1982
    PubMed
    Summary
    This summary is machine-generated.

    Lesioning the posterior cingulate cortex worsened stress-induced stomach issues in rats. Conversely, anterior cingulate cortex lesions protected against immobilization stress, highlighting distinct roles of these brain regions in the stress response.

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    Area of Science:

    • Neuroscience
    • Stress Research
    • Gastroenterology

    Background:

    • The cingulate cortex, a key component of the limbic system, plays a role in emotional and cognitive processing.
    • Stress is known to exacerbate various physiological conditions, including gastric pathology.
    • Understanding the neural mechanisms underlying stress responses is crucial for developing effective interventions.

    Purpose of the Study:

    • To investigate the differential effects of anterior and posterior cingulate cortex lesions on stress-induced gastric pathology in a rat model.
    • To elucidate the role of specific cingulate cortex subregions in mediating the physiological consequences of immobilization stress.

    Main Methods:

    • Bilateral lesions were surgically induced in the anterior or posterior cingulate cortex of rats.

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  • Following a recovery period, rats were subjected to 24 hours of immobilization stress.
  • Gastric pathology was assessed and compared between lesioned and control groups under both stress and non-stress conditions.

    • Main Results:

    • Posterior cingulate cortex lesions significantly increased the severity of gastric pathology, both under restraint and non-restraint conditions.
    • Anterior cingulate cortex lesions attenuated the negative effects of immobilization on gastric pathology.
    • These findings suggest a differential involvement of anterior and posterior cingulate cortex in the stress-induced gastric response.

    Conclusions:

    • The posterior cingulate cortex appears to play a facilitatory role in the development of stress-induced gastric pathology.
    • The anterior cingulate cortex may exert a protective effect against immobilization-induced gastric damage.
    • These results contribute to understanding the telencephalic limbic mechanisms involved in the stress-gastric interaction.