Evaluation of Pulse Fibre Supplementation on Obesity and the Metabolic Syndrome
Evaluation of Pulse Fibre Supplementation in Obesity and the Metabolic Syndrome: Generating Evidence in Support of Health Claims
調査の概要
詳細な説明
The main objective of our study is to assess the effects of pulse fibre supplementation on weight loss in an overweight and obese adult population.
Primary objective - To determine the effects of a 12 week intake of 15g/day of pea hull fibre on weight loss supported by body composition measures.
Secondary objective - To measure glucose control and appetite regulation in overweight and obese adults consuming 15g/day of pea hull fibre compared to a placebo control with the use of plasma HbA1c and an oral glucose tolerance test (OGTT).
Tertiary objective - To examine mechanisms of action of pulse fibre supplementation by determining the impact of pulse fibre supplementation on gut microbiota, serum metabolomics and fecal short-chain fatty acid and bile acid concentrations.
研究の種類
入学 (実際)
段階
- 適用できない
連絡先と場所
研究場所
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Alberta
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Calgary、Alberta、カナダ、T2N 1N4
- University Of Calgary
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Males and females
- Age 18 - 70 years
- BMI 25 - 38 kg/m-2
- Stable body weight for at least 3 months prior to the study
Exclusion Criteria:
- Concomitant use of any weight loss medication, diet or exercise regime
- Use of corticosteroids, anti-depressants, anti-epileptic medications, lipid lowering medication, diabetes medications
- Previous bariatric or other intestinal surgeries
- Pregnancy or lactation
- Weight loss > 3 kg within preceding 3 months to enrollment
- Use of bulk laxatives or probiotics/prebiotics supplements
- Antibiotic use in the past month
- Clinically significant cardiovascular or respiratory or liver disease
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:Pulse Fibre
The intervention group will receive a biscuit containing 5g/serving of yellow pea fibre to be eaten 3 times per day approximately 30 minutes prior to their 3 largest meals.
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Yellow pea hull fibre incorporated into a biscuit at 5 g/serving.
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プラセボコンパレーター:Control
The placebo group will receive a biscuit an isocaloric control biscuit that is similar in taste and texture and without pulse fibre to be eaten 3 times per day approximately 30 minutes prior to their 3 largest meals.
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Control biscuit with no yellow pea hull fibre.
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change in Fat Mass at 12 Weeks
時間枠:Value at 12 weeks minus value at baseline
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Value at 12 weeks minus value at baseline assessed with dual energy x-ray absorptiometry.
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Value at 12 weeks minus value at baseline
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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HbA1c at 12 Weeks
時間枠:12 weeks
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Assessed via HbA1c
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12 weeks
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Change in Objective Appetite at 12 Weeks
時間枠:12 weeks minus baseline
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Value at 12 weeks minus baseline energy intake during weighed lunch buffet.
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12 weeks minus baseline
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その他の成果指標
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Cholesterol Profile at 12 Weeks
時間枠:12 weeks
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Serum LDL (low density lipoprotein) cholesterol
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12 weeks
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Serum Cytokine at 12 Weeks
時間枠:12 weeks
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Serum cytokine IL-6 measured at 12 weeks
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12 weeks
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Alpha Diversity of Gut Microbiota at 12 Weeks
時間枠:12 weeks
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Gut microbiota alpha diversity measured at 12 weeks as Chao index.
Chao index is an abundance-based estimator of species richness within a sample.
There are no preset minimum and maximum values but scores typically range from 0 to 4000.
A higher score is generally regarded as better.
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12 weeks
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Serum Metabolomics at 12 Weeks
時間枠:12 weeks
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Serum metabolomics measured at 12 weeks using 1H-NMR analysis.
Principal component analysis is used to see if two or more groups of samples separate into distinct clusters.
The principal components generated in this analysis range from 0-100%.
A higher value means that more variability among the samples is explained by this principal component.
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12 weeks
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Fecal Short-chain Fatty Acid Concentrations
時間枠:12 weeks
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Fecal acetate concentration measured at 12 weeks
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12 weeks
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Fecal Bile Acid Concentration
時間枠:12 weeks
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Fecal cholic acid concentration measured at 12 weeks
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12 weeks
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協力者と研究者
スポンサー
捜査官
- 主任研究者:Raylene Reimer, PhD, RD、University Of Calgary
出版物と役立つリンク
一般刊行物
- Lambert JE, Parnell JA, Han J, Sturzenegger T, Paul HA, Vogel HJ, Reimer RA. Evaluation of yellow pea fibre supplementation on weight loss and the gut microbiota: a randomized controlled trial. BMC Gastroenterol. 2014 Apr 8;14:69. doi: 10.1186/1471-230X-14-69.
- Lambert JE, Parnell JA, Tunnicliffe JM, Han J, Sturzenegger T, Reimer RA. Consuming yellow pea fiber reduces voluntary energy intake and body fat in overweight/obese adults in a 12-week randomized controlled trial. Clin Nutr. 2017 Feb;36(1):126-133. doi: 10.1016/j.clnu.2015.12.016. Epub 2016 Jan 11.
- Mayengbam S, Lambert JE, Parnell JA, Tunnicliffe JM, Nicolucci AC, Han J, Sturzenegger T, Shearer J, Mickiewicz B, Vogel HJ, Madsen KL, Reimer RA. Impact of dietary fiber supplementation on modulating microbiota-host-metabolic axes in obesity. J Nutr Biochem. 2019 Feb;64:228-236. doi: 10.1016/j.jnutbio.2018.11.003. Epub 2018 Nov 26.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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