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| Name | Class |
|---|---|
| Manitoba Pulse Growers | OTHER |
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This is a single site, blinded, randomized, controlled study designed to examine phytochemical absorption, metabolism and excretion, as well as vascular health and satiety, after ingestion of 4 different bean varieties (pinto, navy, red kidney, black). Eligible participants will attend 6 in-person clinic visits for comparative testing of the 4 bean varieties versus lentils and rice.
This is a single site, blinded, randomized, controlled study designed to examine phytochemical absorption, metabolism and excretion, as well as vascular health and satiety, after ingestion of 4 different bean varieties (pinto, navy, red kidney, black).
Recruitment will consist of a total of 8 volunteers. Volunteers will be recruited through advertisement from the local community.
The study will be conducted at the I.H. Asper Clinical Research Institute,located at the St. Boniface Hospital. Participants will be asked to provide written informed consent prior to participation in the study. Participants who have provided written consent will be asked to attend an in-patient visit to provide a fasting blood sample. Should the participant be eligible to participate, they will be scheduled for six study visits to assess the bioavailability, metabolism and excretion of phytochemicals present in beans compared to lentils and white rice.
Uptake, metabolism and excretion of phytochemicals present in different varieties of beans during acute phase testing in healthy individuals will be examined. Possible relationships between phytochemical composition of the beans, arterial function and satiety will be investigated as the secondary objective.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Navy Beans (cooked) | Active Comparator | At one of the six visits, participants will consume a ¾ cup of cooked navy beans. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
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| Red Kidney Beans (cooked) | Active Comparator | At one of the six visits, participants will consume a ¾ cup of cooked red kidney beans. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
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| Pinto Beans (cooked) | Active Comparator | At one of the six visits, participants will consume a ¾ cup of cooked pinto beans. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Navy Beans (cooked) | Other | One time consumption of 3/4 cup of cooked navy beans. |
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| Measure | Description | Time Frame |
|---|---|---|
| Composite measure of Absorption, Metabolism and Excretion of Phytochemicals | Blood and urine samples will be analyzed using a differential analysis for metabolites (p<0.01 and fold changes ≥ 2) which will be achieved via principle component analysis (PCA), and partial least square (PLS). | Timepoint 0 (prior to consumption), 0.5, 1.0, 1.5, 2, 4 and 6 hours post consumption |
| Measure | Description | Time Frame |
|---|---|---|
| Changes in parameters of arterial stiffness through pulse wave analysis (PWA) | A measure of changes in arterial stiffness as assessed via pulse wave analysis (PWA) using a Mobil-O-Graph PWA Monitor prior to consumption, at 2 hours and 6 hours post-consumption. | Time points 0 (prior to consumption) and 2 and 6 hours post consumption. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Peter Zahradka, PhD | University of Manitoba | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| St.Boniface Hospital | Winnipeg | Manitoba | R2H 2A6 | Canada |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 24063808 | Background | Hanson MG, Zahradka P, Taylor CG. Lentil-based diets attenuate hypertension and large-artery remodelling in spontaneously hypertensive rats. Br J Nutr. 2014 Feb;111(4):690-8. doi: 10.1017/S0007114513002997. Epub 2013 Sep 24. | |
| 24075762 | Background | Zahradka P, Wright B, Weighell W, Blewett H, Baldwin A, O K, Guzman RP, Taylor CG. Daily non-soy legume consumption reverses vascular impairment due to peripheral artery disease. Atherosclerosis. 2013 Oct;230(2):310-4. doi: 10.1016/j.atherosclerosis.2013.07.048. Epub 2013 Aug 6. |
| Label | URL |
|---|---|
| Canadian Centre for Agri-Food Research in Health and Medicine | View source |
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| ID | Term |
|---|---|
| D003296 | Cooking |
| ID | Term |
|---|---|
| D005511 | Food Handling |
| D019649 | Food Industry |
| D007221 | Industry |
| D013676 | Technology, Industry, and Agriculture |
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| Black Beans (cooked) | Active Comparator | At one of the six visits, participants will consume a ¾ cup of cooked navy beans. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
|
| Lentils (cooked) | Active Comparator | At one of the six visits, participants will consume a ¾ cup of cooked lentils. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
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| White Rice (cooked) | Placebo Comparator | At one of the six visits, participants will consume a ¾ cup of cooked white rice. Participants will be provided with 100 ml of water with the food, and will be allowed to drink water whenever necessary during the 6 hour test period. The participants will not be blinded to the order and the type of food product they receive at a visit, however, the samples will be assigned a number to ensure the analytical team is blinded to the test product until the end of the study. Should the need to re-administer a test product arise, the participant will receive the test product from the same treatment number again at an extra visit after the original 6 visits have been completed. |
|
| Red Kidney Beans (cooked) |
| Other |
One time consumption of 3/4 cup of cooked red kidney beans. |
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| Pinto Beans (cooked | Other | One time consumption of 3/4 cup of cooked pinto beans. |
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| Black Beans (cooked) | Other | One time consumption of 3/4 cup of cooked black beans. |
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| Lentils (cooked) | Other | One time consumption of 3/4 cup of cooked lentils. |
|
| White Rice | Other | One time consumption of 3/4 cup of cooked white rice. |
|
| Satiety Questionnaire |
Participants will complete a Satiety Questionnaire 5 hours after consumption of the study product. |
| 5 hours after consumption of study product |
| 24957762 | Background | Vinaixa M, Samino S, Saez I, Duran J, Guinovart JJ, Yanes O. A Guideline to Univariate Statistical Analysis for LC/MS-Based Untargeted Metabolomics-Derived Data. Metabolites. 2012 Oct 18;2(4):775-95. doi: 10.3390/metabo2040775. |
| 24261687 | Background | Nyamundanda G, Gormley IC, Fan Y, Gallagher WM, Brennan L. MetSizeR: selecting the optimal sample size for metabolomic studies using an analysis based approach. BMC Bioinformatics. 2013 Nov 21;14:338. doi: 10.1186/1471-2105-14-338. |