Anti-inflammatory Effects of the Fiber

NCT ID: NCT02868788

Last Updated: 2024-10-17

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-06-14

Study Completion Date

2018-07-01

Brief Summary

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This study will help elucidate the mechanism underlying the cardioprotective and anti-diabetes effect of dietary fiber by exploring a comprehensive set of inflammatory and oxidative stress markers, based on a contemporary understanding of this process. In addition, there have been very few studies that explored the immediate change in oxidative stress and incretin secretion after fiber intake. In this study, the investigators will be able assess the short term metabolic impact of dietary fiber at great details. The result will contribute to dietary recommendation or designing of fiber supplementation for prevention/treatment of diabetes, obesity and cardiovascular disease.

Detailed Description

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Baseline labs include complete blood count (CBC), comprehensive metabolic panel (CMP), Hemoglobin A1C, and lipid profile. All labs will be drawn in the fasting state

Visit 1: Subjects will arrive after having fasted overnight (10 hours) at 7 to 7:30 am. An indwelling intravenous cannula will be placed in the anterior cubital vein for blood draws. A blood sample of the research labs and a urine sample will be collected. Blood pressure, heart rate and weight will be measured. Subjects will consume either a High Fat High Calorie (HFHC) meal or HFHC meal plus fiber (FiberOne Original cereal) according to randomization. Fiber will be consumed before and after the HFHC meal (28 grams in total, 14 grams before and after the meal). HFHC meal includes an egg muffin sandwich, a sausage muffin sandwich and two hash browns which contain 88g carbohydrate, 51 g fat (33% saturated) and 34 g protein. 35 ml of blood will be obtained at 1h , 2h, 3h and 5 h and 5 ml at 15 min,30 min,45 min,75 min and 90 min. A total of 165 ml (11 tablespoon) blood will be collected.

. Visit 2: Subjects will return 1 week later after overnight fasting (10 hours) at 7 to 7:30 am. Blood pressure, heart rate and weight will be measured. Baseline blood and urine samples will be collected again and subjects will be crossed over to receive the second meal (HFHC only or HFHC with fiber). Visit details are similar to visit 1. After this, the subject will be discharged from the study.

Conditions

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Type 2 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

BASIC_SCIENCE

Blinding Strategy

NONE

Study Groups

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high fat high calorie meal (HFHC)

Subjects in this arm will receive high fat high calorie (HFHC) meal only

Group Type OTHER

HFHC meal

Intervention Type OTHER

910 Calorie HFHC meal

HFHC plus fiber

Subjects in this arm will receive HFHC meal plus dietary fiber supplementation

Group Type EXPERIMENTAL

dietary fiber

Intervention Type DIETARY_SUPPLEMENT

Fiber one supplement (32 grams of fiber) will be consumed with 910 Calorie HFHC meal

HFHC meal

Intervention Type OTHER

910 Calorie HFHC meal

Interventions

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dietary fiber

Fiber one supplement (32 grams of fiber) will be consumed with 910 Calorie HFHC meal

Intervention Type DIETARY_SUPPLEMENT

HFHC meal

910 Calorie HFHC meal

Intervention Type OTHER

Other Intervention Names

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Fiber One

Eligibility Criteria

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Inclusion Criteria

1. Men and women 18 to 80 years of age
2. Non-smoker (last cigarette at least one month ago)
3. Type 2 diabetes for at least 1 year
4. Body mass index \> 30 kg/m2

Exclusion Criteria

1. Participation in any other concurrent clinical trials
2. Pregnancy or premenopausal women who are trying to be pregnant
3. Patients who are incompetent to give consent
4. Patients on non-steroidal anti-inflammatory drugs or steroids
5. Concurrent disease that could disrupt intestinal epithelium and increase permeability to endotoxin, ie Celiac and Crohns disease.
6. Hepatic disease (transaminase \> 3 times normal)
7. Renal impairment (serum creatinine \> 1.5 mg/dl)
8. History of drug or alcohol abuse
9. Use of over the counter or prescribed probiotic supplements.
10. Recent or current antibiotic use.
11. Coronary artery disease (CAD): documented by history of myocardial infarction, angioplasty/stent placement, angina, exercise EKG positive for ischemia or angiographic evidence of CAD
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University at Buffalo

OTHER

Sponsor Role lead

Responsible Party

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Paresh Dandona

SUNY Distinguished Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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ECMC Ambulatory Center, 3rd Floor

Buffalo, New York, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol and Statistical Analysis Plan

View Document

Other Identifiers

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1977

Identifier Type: -

Identifier Source: org_study_id

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