The investigators wish to study the effects of three forms of bariatric surgery: gastric bypass, sleeve gastrectomy, and lap banding. The surgery is not part of the clinical trial. If insurance does not cover the procedure, then the patient is responsible for payment of the surgical process. The investigators are doing pre- and post-surgery testing to provide a better understanding of the effect of bariatric surgery-induced weight loss on 1) alcohol absorption, distribution and elimination from the body; 2) the effects of alcohol on blood sugar; and 3) the effects of alcohol on mood.
The study includes seven groups of women: One group will be undergoing gastric bypass, another group will be undergoing lap banding, a third group will be undergoing sleeve gastrectomy, the fourth group will be women who underwent gastric bypass 1-5 years ago, the fifth group will be women who underwent lap banding 1-5 years ago, the sixth group will be women who underwent sleeve gastrectomy 1-5 years ago, and the seventh group will be a control group who have not undergone bariatric surgery.
Study Type
OBSERVATIONAL
Enrollment
100
Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion (visit 1 alcohol, visit 2 placebo).
Subjects will be assessed in two testing sessions about 1 week apart, in which their response to alcohol or nonalcoholic (placebo) beverage will be evaluated in a randomized cross-over fashion (visit 1 placebo, visit 2 alcohol).
University of Illinois at Urbana Champaign
St Louis, Missouri, United States
Change from before bariatric surgery in alcohol's Tmax, Cmax, area under the curve and elimination rates at approximately 9 months after bariatric surgery
Time to reach maximum peak blood alcohol levels, alcohol area under the time-concentration curve and alcohol's constant of elimination will be examined before and after surgery and compared between those who had gastric bypass versus lap banding.
Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.
Change from before bariatric surgery in alcohol subjective effects at approximately 9 months after bariatric surgery
Validated instruments (such as the Addiction Research Center Inventory) will be used to measured alcohol's subjective effects at different timepoints after drinking an alcoholic or a non-alcoholic (control) beverage.
Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.
Change from before bariatric surgery on alcohol's effects on glucose homeostasis at approximately 9 months after bariatric surgery
Time frame: Subjects in the longitudinal arm of the study will be assessed before surgery and approximately 9 months after surgery. A group of subjects will be assessed 1-5 years after surgery only.
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