Healthy ParticipantsObese But Otherwise Healthy Participants
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
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At a Glance
Age
20 – 55
Sex
Any
Study type
Interventional
Purpose
Basic Science
Participants needed
40 (estimated)
Sponsor
Touro University, California · Other
Who this trial is looking for
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This study will test the hypothesis that within a defined range of fructose intake, the ability to convert fructose to glucose (via gluconeogenesis) in the small intestine plays a protective role for the liver, shielding it from the deleterious effects of fructose. We will investigate whether this protective effect of the intestine is impaired in individuals with obesity.
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Eligibility Criteria
Inclusion Criteria:
* BMI 30 to 38 kg/m2 (obese group) or BMI 19 to 25 kg/m2 (lean group)
Exclusion Criteria:
* Pregnancy or lactation within the past six months;
* Type 1 or 2 diabetes mellitus (including fasting glucose ≥126 mg/dL, HgbA1c ≥6.5%);
* History of liver disease or AST and ALT 2x abo…
Inclusion Criteria:
* BMI 30 to 38 kg/m2 (obese group) or BMI 19 to 25 kg/m2 (lean group)
Exclusion Criteria:
* Pregnancy or lactation within the past six months;
* Type 1 or 2 diabetes mellitus (including fasting glucose ≥126 mg/dL, HgbA1c ≥6.5%);
* History of liver disease or AST and ALT 2x above the upper limit of normal;
* Fasting triglyceride \> 300 mg/dl; total cholesterol levels above the 95th percentile for age and sex;
* Hemoglobin (Hgb) \<12.5g/d or hematocrit\<3x Hgb value;
* Report of HIV or hepatitis B or C infection;
* History of cancer, other than basal cell or squamous cell carcinoma or kidney disease stage 3 or higher or patients currently on dialysis;
* Use of any anti-diabetic medications or hypolipidemic agents in the past six months;
* History of surgical procedure for obesity;
* Change in body weight \>5% in the past six months (by self-report);
* History of other conditions known to affect insulin sensitivity and lipid metabolism (e.g., polycystic ovary syndrome), history of galactosemia, hereditary fructose intolerance, or who test positive for fructose malabsorption at screening;
* Known intolerance to acetaminophen.
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