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Related Experiment Videos

Endocrine function in alcoholic Korsakoff's syndrome

R A Emsley1, M C Roberts, C Aalbers

  • 1Department of Psychiatry, University of Stellenbosch, Tygerberg, South Africa.

Alcohol and Alcoholism (Oxford, Oxfordshire)
|March 1, 1994
PubMed
Summary

Alcoholic Korsakoff's syndrome patients show abnormal cortisol regulation. Chronically elevated cortisol may contribute to cognitive deficits in this neurological condition.

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Area of Science:

  • Neuroendocrinology
  • Alcohol-related disorders

Background:

  • Alcoholic Korsakoff's syndrome is a severe neurological disorder.
  • Endocrine system dysfunction may play a role in its pathogenesis.

Purpose of the Study:

  • To investigate hypothalamic-pituitary function in alcoholic Korsakoff's syndrome.
  • To compare endocrine responses between patients with Korsakoff's syndrome, non-amnesic alcoholics, and healthy controls.

Main Methods:

  • Dynamic endocrine testing, including a combined thyrotropin-releasing hormone and gonadorelin stimulation test.
  • Dexamethasone suppression test to assess cortisol regulation.
  • Measurement of thyroid-stimulating hormone, prolactin, follicle-stimulating hormone, and luteinizing hormone levels.
  • Assay of basal and post-dexamethasone serum cortisol levels.

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Main Results:

  • No significant differences in thyroid-stimulating hormone, prolactin, follicle-stimulating hormone, or luteinizing hormone responses were observed between groups.
  • Patients with alcoholic Korsakoff's syndrome exhibited significantly higher basal serum cortisol levels compared to controls.
  • Korsakoff patients also showed significantly higher 08:00 hr post-dexamethasone cortisol levels than non-alcoholic controls.

Conclusions:

  • Hypothalamic-pituitary-adrenal axis dysregulation, specifically elevated cortisol, is present in alcoholic Korsakoff's syndrome.
  • Chronically elevated cortisol levels may be a contributing factor to the cognitive impairment observed in this condition.