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Related Experiment Videos

Satiety and cholecystokinin

K M Pirke1, M B Kellner, E Friess

  • 1Department of Psychoendocrinology, University of Trier, Germany.

The International Journal of Eating Disorders
|January 1, 1994
PubMed
Summary

This study found that cholecystokinin (CCK) 8-S levels did not correlate with satiety in patients with anorexia nervosa or bulimia nervosa, suggesting CCK is not involved in short-term satiety regulation for these eating disorders.

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Area of Science:

  • Neuroscience
  • Gastroenterology
  • Psychiatry

Background:

  • Eating disorders like anorexia nervosa and bulimia nervosa are associated with altered appetite regulation.
  • Cholecystokinin (CCK) is a gut hormone known to influence satiety.
  • Previous research has explored the role of CCK in eating disorders with mixed results.

Purpose of the Study:

  • To investigate the relationship between plasma cholecystokinin (CCK) 8-S levels and subjective satiety in individuals with anorexia nervosa, bulimia nervosa, and healthy controls.
  • To determine if CCK 8-S plays a role in the altered satiety experienced by patients with these eating disorders.

Main Methods:

  • A standardized 800 kcal test meal, rich in fat and protein, was administered to participants.
  • Subjective satiety ratings were collected from all participants.

Related Experiment Videos

  • Plasma levels of cholecystokinin (CCK) 8-S were measured before and after the test meal.
  • Participants included acutely ill anorectic patients, weight-recovered former anorectic patients, normal weight bulimic patients, and healthy controls.

    • Main Results:

    • Subjective satiety ratings were significantly higher in acutely ill anorectic and bulimic patients compared to controls.
    • Plasma CCK 8-S levels were stimulated by the test meal in all groups except bulimic patients.
    • Bulimic patients exhibited significantly lower CCK 8-S values compared to other groups.
    • Acutely ill and weight-recovered anorectic patients had normal CCK 8-S values before and after the meal.

    Conclusions:

    • The findings suggest that cholecystokinin (CCK) 8-S is not directly involved in the regulation of short-term satiety in anorexia nervosa and bulimia nervosa.
    • Altered satiety in these eating disorders may be mediated by other neurobiological or psychological factors.
    • Further research is needed to elucidate the complex mechanisms underlying appetite dysregulation in eating disorders.