The Effect of Nutrient Intake on the Microbiome, Weight, and Glucoregulation (NI-MWG)
| Status: | Completed |
|---|---|
| Conditions: | Obesity Weight Loss |
| Therapuetic Areas: | Endocrinology |
| Healthy: | No |
| Age Range: | 18 - 65 |
| Updated: | 8/25/2018 |
| Start Date: | March 8, 2017 |
| End Date: | December 31, 2017 |
Is Weight Change and Glucoregulation Related to Dietary Intake, the Gut Microbiome or the Interaction Between The Two Variables?
The purpose of this study is to investigate a persons dietary intake and its effect on the
gut microbiome and the association of those two variables on weight and glucoregulation.
Specifically, the investigators will compare the gut microbiota, fasting glucose and insulin,
c-peptide and hemoglobin A1-c in three groups of subjects: obese patients (BMI ≥ 30 kg/m2)
with type 2 diabetes mellitus (T2DM), obese patients without T2DM, and normal weight lean
controls without T2DM. Each patient will also complete a detailed dietary recall (ASA-24) to
investigate the association with diet, microbiome and weight/glucoregulation.
gut microbiome and the association of those two variables on weight and glucoregulation.
Specifically, the investigators will compare the gut microbiota, fasting glucose and insulin,
c-peptide and hemoglobin A1-c in three groups of subjects: obese patients (BMI ≥ 30 kg/m2)
with type 2 diabetes mellitus (T2DM), obese patients without T2DM, and normal weight lean
controls without T2DM. Each patient will also complete a detailed dietary recall (ASA-24) to
investigate the association with diet, microbiome and weight/glucoregulation.
Inclusion Criteria:
1. Female
2. Age 18-65 (inclusive, at time of informed consent)
3. BMI ≥ 30 kg/m2 with T2DM
4. BMI ≥ 30 kg/m2 without T2DM
5. Normal weight lean controls without T2DM
Exclusion Criteria:
1. Tobacco use in past three months - will add unnecessary confound to the data.
2. Taking a medication on a routine/recent basis which is known to significantly
influence gastrointestinal transit time or affect the microbiome or other variables
significantly (as determined by study pharmacist/MD)
3. Has taken an oral or injectable antibiotic in the past 3 months
4. Has taken a commercially prepared probiotic and/or prebiotic agent in the 3 months
5. History of significant intestinal disease or disorder (e.g., crohn's disease,
ulcerative colitis)
6. History of gastrointestinal surgery that may impact measures of biological variables,
as determined by the investigator
7. Medical condition expected to impact the biological variables of interest or interfere
with providing a sample, as determined by the investigator.
8. Unable to speak/read English
9. Breastfeeding, pregnant, or planning to become pregnant within the duration of the
study as assessed through self-report on medical history
10. Unwilling to use a medically acceptable form of contraception during study
involvement. Medically acceptable forms of contraception include oral contraception,
physical barrier methods and/or abstinence.
11. Any known infectious disease such as Viral Hepatitis or HIV (as determined by study
pharmacist/MD)
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