Related Experiment Videos
Metabolic abnormalities in bulimia nervosa
M J Devlin1, B T Walsh, J G Kral
1Department of Psychiatry, Columbia University College of Physicians and Surgeons, New York, NY.
Archives of General Psychiatry
|February 1, 1990
Summary
Women with bulimia nervosa have a lower resting metabolic rate and fasting blood glucose compared to healthy controls. This suggests an energy regulation disturbance in bulimia nervosa, though its cause remains unclear.
Area of Science:
- Metabolic research
- Eating disorder pathophysiology
- Human physiology
Background:
- Bulimia nervosa is an eating disorder characterized by binge eating and compensatory behaviors.
- Energy regulation is crucial for maintaining homeostasis and is often disrupted in eating disorders.
Purpose of the Study:
- To investigate resting metabolic rate (RMR) and related metabolic markers in women with bulimia nervosa.
- To compare RMR and metabolic profiles between individuals with bulimia nervosa and healthy controls.
Main Methods:
- Measured RMR in 22 women with bulimia nervosa and 19 matched controls using indirect calorimetry.
- Assessed fasting blood glucose and thyroid function indexes (including basal thyrotropin).
- Evaluated body fat mass, fat cell size, and lipoprotein lipase activity.
Main Results:
- Patients with bulimia nervosa exhibited significantly lower mean RMR (1229 +/- 221 kcal/24 h) compared to controls (1342 +/- 107 kcal/24 h).
- Lower mean fasting blood glucose levels were observed in patients (4.0 +/- 0.6 mmol/L) versus controls (4.6 +/- 0.6 mmol/L).
- Basal thyrotropin levels were lower in patients, but other thyroid indexes, body fat, fat cell size, and lipoprotein lipase activity did not differ.
Conclusions:
- Findings suggest a disturbance in energy regulation in women with bulimia nervosa.
- The observed lower RMR and fasting glucose may contribute to the pathophysiology of bulimia nervosa.
- Further research is needed to elucidate the origins and precise role of these metabolic disturbances.