- ICH GCP
- Amerikanska kliniska prövningsregistret
- Klinisk prövning NCT02215343
Effect of Prebiotic and PUFA on the Gut Microbiota and Metabolic Risk Markers (MyNewGut)
Effect of Prebiotic Fibre and Polyunsaturated Fatty Acid (PUFA) on the Gut Microbiota and Metabolic Risk Markers in a Metabolically Challenged Population
The main objective of this study is to investigate in detail how a high-(prebiotic)fibre diet and a high-PUFA diet affect the gut microbiota composition in a metabolic challenged population, and if the diet-induced modulation of the gut microbiota mediates changes in metabolic risk markers.
Intake of both experimental diets over 4 weeks are expected to induce beneficial changes in the gut microbiota composition and to affect markers for insulin sensitivity, lipid metabolism and inflammation. The investigators hypothesize that the effect of both interventions on the metabolic risk markers will be partly mediated by the diet-induced changes in the gut microbiota composition.
Studieöversikt
Status
Betingelser
Intervention / Behandling
Studietyp
Inskrivning (Faktisk)
Fas
- Inte tillämpbar
Kontakter och platser
Studieorter
-
-
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Frederiksberg, Danmark, 1958
- Department of Nutrition, Exercise and sports, University of Copenhagen
-
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Deltagandekriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria:
- BMI: 25-40 kg/m2
- Non-smoking
- Indices of the Metabolic Syndrome defined by the International Diabetes Federation (IDF 2006):
Central obesity (waist circumference; men: ≥94 cm and women: ≥80 cm) + any one of the following; raised triglyceride level (≥1.7 mmol/L), reduced HDL cholesterol (men: <1.03 mmol/L, women: <1.29 mmol/L), raised BP (systolic ≥130 mm Hg or diastolic ≥85 mm Hg) or raised fasting plasma glucose (≥5.6 mmol/L).
Exclusion Criteria:
- Use of antibiotics
- Weight change >3 kg 2 months prior to study start
- Intensive physical training/ elite athlete
- Medication for dyslipidemia, type 2 diabetes or elevated blood pressure
- Dietary supplements with pro/prebiotics, dietary fibre or fish oil supplement
- Lactation, pregnancy or planning of pregnancy during the study
- Gastro intestinal and liver disorders
- Chronic inflammatory disorders
- Diagnosed psychiatric disorder including treatment required depression
- Surgical treatment of obesity and abdominal surgery
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Förebyggande
- Tilldelning: Randomiserad
- Interventionsmodell: Crossover tilldelning
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Experimentell: High fibre diet (wheat bran extract)
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Patients will be provided with 15g of wheat bran extract (WBE) (Cargill R&D Centre Europe).
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Experimentell: High PUFA diet (fish oil supplement)
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Patients will be provided with a fish oil supplement (capsules), containing 3-4g of N-3 fatty acids (Axellus A/S, Ishøj, Denmark).
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Change in gut microbiota composition
Tidsram: Week 0, 4, 8, 12
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Gut microbiota composition will be analyzed by use of fecal samples.
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Week 0, 4, 8, 12
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Change in markers for insulin sensitivity
Tidsram: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
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Change in markers for lipid metabolism
Tidsram: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
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Change in markers for inflammation
Tidsram: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
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Faecal SCFA and bile acid composition
Tidsram: Week 0, 4, 8, 12
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Will be analyzed by use of fecal samples.
|
Week 0, 4, 8, 12
|
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Lipidomics
Tidsram: Week 0, 4, 8, 12
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Will be analyzed by use of fasting blood samples and fecal samples.
|
Week 0, 4, 8, 12
|
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Metabolomics
Tidsram: Week 0, 4, 8, 12
|
Will be analyzed by use of fasting blood samples, urine and fecal samples.
|
Week 0, 4, 8, 12
|
Andra resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
|
Change in energy expenditure
Tidsram: Week 0, 4, 8, 12
|
Resting energy expenditure will be measured by indirect calorimetry in a ventilated hood system
|
Week 0, 4, 8, 12
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Gene expression
Tidsram: Week 0, 4, 8, 12
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Adipose tissue biopsies will be used for epigenetic analyses, gene and protein expression (no whole genome or exome sequencing).
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Week 0, 4, 8, 12
|
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Compliances markers
Tidsram: Week 0, 4, 8, 12
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Compliance will be evaluated from 3-days diet registration and self-reported intake of dietary supplements, PUFA complance markes (fatty acid composition) and body composition
|
Week 0, 4, 8, 12
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Samarbetspartners och utredare
Sponsor
Samarbetspartners
Utredare
- Huvudutredare: Lesli H Larsen, PhD, Department of Nutrition, Exercise and sports, University of Copenhagen
Publikationer och användbara länkar
Allmänna publikationer
- Benitez-Paez A, Kjolbaek L, Gomez Del Pulgar EM, Brahe LK, Astrup A, Matysik S, Schott HF, Krautbauer S, Liebisch G, Boberska J, Claus S, Rampelli S, Brigidi P, Larsen LH, Sanz Y. A Multi-omics Approach to Unraveling the Microbiome-Mediated Effects of Arabinoxylan Oligosaccharides in Overweight Humans. mSystems. 2019 May 28;4(4):e00209-19. doi: 10.1128/mSystems.00209-19.
- Kjolbaek L, Benitez-Paez A, Gomez Del Pulgar EM, Brahe LK, Liebisch G, Matysik S, Rampelli S, Vermeiren J, Brigidi P, Larsen LH, Astrup A, Sanz Y. Arabinoxylan oligosaccharides and polyunsaturated fatty acid effects on gut microbiota and metabolic markers in overweight individuals with signs of metabolic syndrome: A randomized cross-over trial. Clin Nutr. 2020 Jan;39(1):67-79. doi: 10.1016/j.clnu.2019.01.012. Epub 2019 Feb 19.
Användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Primärt slutförande (Faktisk)
Avslutad studie (Faktisk)
Studieregistreringsdatum
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- MyNewGut, Task 3.3
- Grant Agreement no: 613979 (Annat bidrag/finansieringsnummer: EU 7th Framework Programme)
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