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Pulses Consumption and Its Role in Managing Systemic Inflammation, Insulin Sensitivity and Gut Microbiome in Human (PS)

Primary Purpose

Insulin Sensitivity, Overweight or Obesity, Inflammatory Response

Status
Active
Phase
Not Applicable
Locations
United States
Study Type
Interventional
Intervention
Control
Black bean
Chickpea
Sponsored by
Clinical Nutrition Research Center, Illinois Institute of Technology
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional other trial for Insulin Sensitivity focused on measuring Pulses, gut microbiota

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesAccepts Healthy Volunteers

Inclusion Criteria:

  • Men or women, age 18 or older
  • BMI ≥ 25 kg/m2
  • Fasting blood glucose concentration between 100 mg/dL and 125 mg/dL at the screening visit
  • Nonsmokers (Past smokers can be allowed if they have abstinence for a minimum of 2 years)
  • Judged to be in good health on the basis of the medical history ie., no clinical evidence of cardiovascular, metabolic, respiratory, renal, gastrointestinal or hepatic disease
  • Not taking any medications that would interfere with outcomes of the study, i.e. lipid-lowering medications, anti-inflammatory drugs, dietary supplements, etc.
  • Able to provide informed consent
  • Able to comply and perform the procedures requested by the protocol (including dietary restrictions, consumption of study treatments, records of food diary and GI-tract questionnaire, sample collection procedures and study visit schedule)
  • Able to maintain the usual physical activity pattern
  • Able to abstain from alcohol consumption and avoid vigorous physical activity for 24 hours prior to and during the study visit

Exclusion Criteria:

  • Men and women who smoke
  • Men and women with known or suspected intolerance, allergies or hypersensitivity to study foods or treatments
  • Men and women who have blood pressure >160 mmHg (systolic)/100 mmHg (diastolic) at the screening visit
  • Men and women who have fasting blood glucose concentration <100 or >125 mg/dL at the screening visit
  • Men and women with documented vascular disease, e.g., heart failure, myocardial infarction, stroke, angina, related surgeries, etc. that, in the opinion of the investigator, could interfere with the interpretation of the study results
  • Men and women with cancer other than non-melanoma skin cancer in the previous 5 years
  • Men and women diagnosed with chronic constipation, diarrhea or other chronic gastrointestinal complaints (e.g. irritable bowel syndrome)
  • Women who are known to be pregnant or who are intending to become pregnant over the course of the study
  • Women who are lactating
  • Taking medication or dietary supplements that may interfere with the outcomes of the study; e.g., antioxidant supplement, anti-inflammation, lipid-lowering medication, blood pressure-lowering medication, etc... Subjects may choose to go off dietary supplements (requires 30 days washout); e.g., fish oil, probiotics, etc...
  • Men and women who have participated in prebiotics or laxative trial within 3 months prior to enrollment or any other clinical trial within 1 month
  • Major trauma or a surgical event within 2 months or longer depending on trauma or event and after consultation with PI.
  • Vegan or other extreme dietary regimens (e.g., Atkins diet, etc.) as judged by the investigator.
  • Taking the fiber supplements and/or on high fiber diets
  • Has used antibiotics within the previous 2 months
  • Had gastrointestinal barium opaque meal within 3 months
  • Has used prebiotics, probiotics, or drugs active on gastrointestinal motility, or a laxative of any class within 1 month
  • History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional
  • Substance (alcohol or drug) abuse within the last 2 years
  • Excessive coffee and tea consumers (> 4 cups/d)
  • Donated blood within last 3 months
  • Men and women who do excessive exercise regularly or are an athlete
  • Unstable weight: gained or lost weight +/- 5 kg (11 lbs) in previous 2 months
  • Women who are taking unstable dose and brand of hormonal contraceptives and/or stable dose and brand less than 6 months
  • Unusual working hours i.e., working overnight (e.g. 3rd shift)

Sites / Locations

  • Clinical Nutrition Research Center

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Active Comparator

Active Comparator

Placebo Comparator

Arm Label

Black bean

Chickpea

Control

Arm Description

A cup of black bean 7 days/week over a 12-week period

A cup of chickpea 7 days/week over a 12-week period

A cup of white rice 7 days/week over a 12-week period

Outcomes

Primary Outcome Measures

Plasma biomarkers and measures of inflammation: Nrf2/ NF-κB
Investigate Nrf2/ NF-κB activation in PBMC
Changes in plasma systemic and gut inflammatory markers
Collected plasma samples will be used to measure selected inflammatory markers (IL6, hs-CRP and TNF-α) using ELISA methods
Determination of GLP-2 in plasma
Analysis of GLP-2 will be done in plasma samples before and after chronic exposure to the study foods using enzyme Immunoassay (EIA) kit as per manufacturer's instructions.
Determination of TLR-2/4 gene expression in Human PBMC
Determination of TLR-2/4 gene expression in Human PBMC using RT-PCR method
Gut inflammatory markers: Calprotectin, zonulin, and IgA in fecal samples
The concentration of calprotectin, zonulin, and IgA in fecal samples will be determined by enzyme-linked immunosorbent assay (ELISA) as per kit providers' instructions before and after chronic exposure to study foods.
Describe functional metagenomics alterations in gut microbiome
Fecal samples will be collected with standard collection kits and stored at -80°C until analysis. Metagenomic and transcriptomic analyses will be performed

Secondary Outcome Measures

Characterize metabolite profiles
Polyphenolic metabolites (phenolic acids and derivatives components) will be identified and quantified in urine and plasma.Metabolites in samples will be identified and quantified using an Agilent 6550 iFunnel UHPLC-QTOF-MS and 6460 UHPLC-QQQ-MS, respectively.
Characterize bile acid metabolite pool
Bile acids in plasma and fecal samples will be determined using UHPLC-QQQ-MS.

Full Information

First Posted
February 5, 2020
Last Updated
August 9, 2023
Sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Collaborators
USDA Beltsville Human Nutrition Research Center
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1. Study Identification

Unique Protocol Identification Number
NCT04267705
Brief Title
Pulses Consumption and Its Role in Managing Systemic Inflammation, Insulin Sensitivity and Gut Microbiome in Human
Acronym
PS
Official Title
Understanding the Pulse-Gut Relationship and it's Role in Modifying Systemic Inflammation and Insulin Sensitivity in Humans
Study Type
Interventional

2. Study Status

Record Verification Date
August 2023
Overall Recruitment Status
Active, not recruiting
Study Start Date
February 24, 2020 (Actual)
Primary Completion Date
September 30, 2023 (Anticipated)
Study Completion Date
September 30, 2023 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Collaborators
USDA Beltsville Human Nutrition Research Center

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
No

5. Study Description

Brief Summary
Objective 1: Characterize indices of systemic inflammation and gut microbiota composition and function after chronic (12 weeks) intake of pulses compared to control diet in human OW/OB-IR participants. Objective 2: Characterize dietary- and microbial-derived metabolite pools after regular intake of pulses (12 weeks) in human participants with OW/OB-IR compared to control diet. Objective 3: Characterize cognitive functioning after chronic (12 weeks) intake of pulses compared to control diet in human OW/OB-IR participants.
Detailed Description
The proposed study will be conducted in humans according to Good Clinical Practice (GCP) guidelines. All subjects will review and sign an Informed Consent Form approved by the Illinois Institute of Technology's Institutional Review Boards (IRB) prior to screening. The proposed study is a randomized, 3-arm, parallel, placebo-controlled design to investigate the effects of pulses consumption compared to non-pulse foods on indices of systemic inflammation and gut microbiota composition and function over a 12-week period. Potential changes in cognition will also be assessed. The study will test 3 treatment conditions in overweight (OW)/obese (OB) human subjects with insulin resistant (IR). Eighty-three men and women will be recruited, aiming for a completer set of Sixty-six subjects. Participants will be randomized into one of the three study food intervention groups: Control group, (n=22): This group will receive a cup of white rice 7 days/week over a 12-week period. Black bean group, (n=22): This group will receive a cup of black bean 7 days/week over a 12-week period. Chickpea group, (n=22): This group will receive a cup of chickpea 7 days/week over a 12-week period. Each subject will be asked to come for 1 Screening Visit, 4 biweekly food pick-up/compliance visits and 3 Test Day Visits (two of which will also include cognitive testing). The initial screening visit will provide subjects with their site-specific, IRB-approved informed consent document prior to the start of any study-related procedures. Following 1-week diet stabilization and wash in from anthocyanins and ellagitannins, eligible subjects will be randomized to receive 1 of 3 test treatments based on a randomization schedule. The three main Test Day visits will occur at week 0 (day 1; baseline), end of week 6 (mid-point) and at the end of week 12 (end-point). Cognitive testing will occur during the baseline Test Day at week 0, and again at end-point Test Day at week 12. Subjects will be given a breakfast meal before cognitive testing. Pick-up Visits will occur at week 2, 4, 8, and 10. Subjects will pick-up study foods receive dietary counseling, confirm diet compliance and have anthropometrics checked during pick-up visits. Each of the 3 Test Day Visits will last about 2.5-3 h (not including cognitive testing) and involve blood pressure (BP) measurements, anthropometric (weight, waist circumference; body composition) assessment, and an oral glucose tolerance test (OGTT) will be performed. Urine and fecal samples will be collected to monitor modifications occurring in the metabolites during the supplementation. The two-Test Day Visits (baseline and end-point) will also include an additional 1-1.25 h of cognitive testing, for a total of 3.75-4.5 h of total subject time (as there will be a short break between OGTT and cognitive testing). Subjects will maintain daily food and GI-tract diary during the 12-week feeding trial. The diary will include questions about food intake and the condition of gastrointestinal tolerance and bowel function.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Insulin Sensitivity, Overweight or Obesity, Inflammatory Response
Keywords
Pulses, gut microbiota

7. Study Design

Primary Purpose
Other
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Model Description
The proposed study is a randomized, 3-arm, parallel, placebo-controlled design
Masking
Participant
Allocation
Randomized
Enrollment
103 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Black bean
Arm Type
Active Comparator
Arm Description
A cup of black bean 7 days/week over a 12-week period
Arm Title
Chickpea
Arm Type
Active Comparator
Arm Description
A cup of chickpea 7 days/week over a 12-week period
Arm Title
Control
Arm Type
Placebo Comparator
Arm Description
A cup of white rice 7 days/week over a 12-week period
Intervention Type
Other
Intervention Name(s)
Control
Intervention Description
This group will receive a cup of rice 7 days/week over a 12-week period
Intervention Type
Other
Intervention Name(s)
Black bean
Intervention Description
This group will receive a cup of black bean7 days/week over a 12-week period
Intervention Type
Other
Intervention Name(s)
Chickpea
Intervention Description
This group will receive a cup of chick pea 7 days/week over a 12-week period
Primary Outcome Measure Information:
Title
Plasma biomarkers and measures of inflammation: Nrf2/ NF-κB
Description
Investigate Nrf2/ NF-κB activation in PBMC
Time Frame
Baseline to 12 weeks
Title
Changes in plasma systemic and gut inflammatory markers
Description
Collected plasma samples will be used to measure selected inflammatory markers (IL6, hs-CRP and TNF-α) using ELISA methods
Time Frame
Baseline to 12 weeks
Title
Determination of GLP-2 in plasma
Description
Analysis of GLP-2 will be done in plasma samples before and after chronic exposure to the study foods using enzyme Immunoassay (EIA) kit as per manufacturer's instructions.
Time Frame
Baseline to 12 weeks
Title
Determination of TLR-2/4 gene expression in Human PBMC
Description
Determination of TLR-2/4 gene expression in Human PBMC using RT-PCR method
Time Frame
Baseline to 12 weeks
Title
Gut inflammatory markers: Calprotectin, zonulin, and IgA in fecal samples
Description
The concentration of calprotectin, zonulin, and IgA in fecal samples will be determined by enzyme-linked immunosorbent assay (ELISA) as per kit providers' instructions before and after chronic exposure to study foods.
Time Frame
Baseline to 12 weeks
Title
Describe functional metagenomics alterations in gut microbiome
Description
Fecal samples will be collected with standard collection kits and stored at -80°C until analysis. Metagenomic and transcriptomic analyses will be performed
Time Frame
Baseline to 12 weeks
Secondary Outcome Measure Information:
Title
Characterize metabolite profiles
Description
Polyphenolic metabolites (phenolic acids and derivatives components) will be identified and quantified in urine and plasma.Metabolites in samples will be identified and quantified using an Agilent 6550 iFunnel UHPLC-QTOF-MS and 6460 UHPLC-QQQ-MS, respectively.
Time Frame
Baseline to 12 weeks
Title
Characterize bile acid metabolite pool
Description
Bile acids in plasma and fecal samples will be determined using UHPLC-QQQ-MS.
Time Frame
Baseline to 12 weeks
Other Pre-specified Outcome Measures:
Title
Cognitive assessment: learning
Description
California Verbal Learning Test® | Second Edition (CVLT®-II) will be measured in baseline and 12 weeks
Time Frame
Baseline to 12 weeks
Title
Cognitive assessment: basic attention, and working memory.
Description
A subtest of the WAIS-IV, Digit Span will be measured in baseline and 12 weeks
Time Frame
Baseline to 12 weeks
Title
Cognitive assessment: verbal phonemic (letter) and semantic (category) fluency
Description
Verbal Fluency: FAS + Animals test will be measured in baseline and 12 weeks
Time Frame
Baseline to 12 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Men or women, age 18 or older BMI ≥ 25 kg/m2 Fasting blood glucose concentration between 100 mg/dL and 125 mg/dL at the screening visit Nonsmokers (Past smokers can be allowed if they have abstinence for a minimum of 2 years) Judged to be in good health on the basis of the medical history ie., no clinical evidence of cardiovascular, metabolic, respiratory, renal, gastrointestinal or hepatic disease Not taking any medications that would interfere with outcomes of the study, i.e. lipid-lowering medications, anti-inflammatory drugs, dietary supplements, etc. Able to provide informed consent Able to comply and perform the procedures requested by the protocol (including dietary restrictions, consumption of study treatments, records of food diary and GI-tract questionnaire, sample collection procedures and study visit schedule) Able to maintain the usual physical activity pattern Able to abstain from alcohol consumption and avoid vigorous physical activity for 24 hours prior to and during the study visit Exclusion Criteria: Men and women who smoke Men and women with known or suspected intolerance, allergies or hypersensitivity to study foods or treatments Men and women who have blood pressure >160 mmHg (systolic)/100 mmHg (diastolic) at the screening visit Men and women who have fasting blood glucose concentration <100 or >125 mg/dL at the screening visit Men and women with documented vascular disease, e.g., heart failure, myocardial infarction, stroke, angina, related surgeries, etc. that, in the opinion of the investigator, could interfere with the interpretation of the study results Men and women with cancer other than non-melanoma skin cancer in the previous 5 years Men and women diagnosed with chronic constipation, diarrhea or other chronic gastrointestinal complaints (e.g. irritable bowel syndrome) Women who are known to be pregnant or who are intending to become pregnant over the course of the study Women who are lactating Taking medication or dietary supplements that may interfere with the outcomes of the study; e.g., antioxidant supplement, anti-inflammation, lipid-lowering medication, blood pressure-lowering medication, etc... Subjects may choose to go off dietary supplements (requires 30 days washout); e.g., fish oil, probiotics, etc... Men and women who have participated in prebiotics or laxative trial within 3 months prior to enrollment or any other clinical trial within 1 month Major trauma or a surgical event within 2 months or longer depending on trauma or event and after consultation with PI. Vegan or other extreme dietary regimens (e.g., Atkins diet, etc.) as judged by the investigator. Taking the fiber supplements and/or on high fiber diets Has used antibiotics within the previous 2 months Had gastrointestinal barium opaque meal within 3 months Has used prebiotics, probiotics, or drugs active on gastrointestinal motility, or a laxative of any class within 1 month History of an eating disorder (e.g., anorexia nervosa, bulimia nervosa, or binge eating) diagnosed by a health professional Substance (alcohol or drug) abuse within the last 2 years Excessive coffee and tea consumers (> 4 cups/d) Donated blood within last 3 months Men and women who do excessive exercise regularly or are an athlete Unstable weight: gained or lost weight +/- 5 kg (11 lbs) in previous 2 months Women who are taking unstable dose and brand of hormonal contraceptives and/or stable dose and brand less than 6 months Unusual working hours i.e., working overnight (e.g. 3rd shift)
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Indika Edirisinghe, Ph.D
Organizational Affiliation
Illinois Insititute of Technology
Official's Role
Principal Investigator
Facility Information:
Facility Name
Clinical Nutrition Research Center
City
Chicago
State/Province
Illinois
ZIP/Postal Code
60616
Country
United States

12. IPD Sharing Statement

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Pulses Consumption and Its Role in Managing Systemic Inflammation, Insulin Sensitivity and Gut Microbiome in Human

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