Abstract
The associations between serum β-endorphin levels and clinical and metabolic variables as well as β-endorphin changes after surgically induced weight loss were investigated in 43 morbidly obese patients. A significant positive correlation between β-endorphin and body weight, degree of body weight increase and ACTH was found preoperatively. Only body weight was independently associated with β-endorphin levels. Twelve months following vertical banded gastroplasty, there was an extensive weight loss in all patients and improvement in their metabolic profile. A significant reduction in β-endorphin levels which was proportional to the extent of weight loss was also observed.
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