- ICH GCP
- US Clinical Trials Registry
- Klinisk forsøg 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.
Studieoversigt
Status
Betingelser
Intervention / Behandling
Undersøgelsestype
Tilmelding (Faktiske)
Fase
- Ikke anvendelig
Kontakter og lokationer
Studiesteder
-
-
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Frederiksberg, Danmark, 1958
- Department of Nutrition, Exercise and Sports, University of Copenhagen
-
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Deltagelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
Tager imod sunde frivillige
Køn, der er berettiget til at studere
Beskrivelse
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
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
- Primært formål: Forebyggelse
- Tildeling: Randomiseret
- Interventionel model: Crossover opgave
- Maskning: Ingen (Åben etiket)
Våben og indgreb
Deltagergruppe / Arm |
Intervention / Behandling |
---|---|
Eksperimentel: 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).
|
Eksperimentel: High PUFA diet (fish oil supplement)
|
Patients will be provided with a fish oil supplement (capsules), containing 3-4g of N-3 fatty acids (Axellus A/S, Ishøj, Denmark).
|
Hvad måler undersøgelsen?
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Change in gut microbiota composition
Tidsramme: Week 0, 4, 8, 12
|
Gut microbiota composition will be analyzed by use of fecal samples.
|
Week 0, 4, 8, 12
|
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Change in markers for insulin sensitivity
Tidsramme: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
Change in markers for lipid metabolism
Tidsramme: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
Change in markers for inflammation
Tidsramme: Week 0, 4, 8, 12
|
Will be measured by use of fasting blood samples
|
Week 0, 4, 8, 12
|
Faecal SCFA and bile acid composition
Tidsramme: Week 0, 4, 8, 12
|
Will be analyzed by use of fecal samples.
|
Week 0, 4, 8, 12
|
Lipidomics
Tidsramme: Week 0, 4, 8, 12
|
Will be analyzed by use of fasting blood samples and fecal samples.
|
Week 0, 4, 8, 12
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Metabolomics
Tidsramme: Week 0, 4, 8, 12
|
Will be analyzed by use of fasting blood samples, urine and fecal samples.
|
Week 0, 4, 8, 12
|
Andre resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
---|---|---|
Change in energy expenditure
Tidsramme: 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
Tidsramme: 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).
|
Week 0, 4, 8, 12
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Compliances markers
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Samarbejdspartnere
Efterforskere
- Ledende efterforsker: Lesli H Larsen, PhD, Department of Nutrition, Exercise and Sports, University of Copenhagen
Publikationer og nyttige links
Generelle 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.
Hjælpsomme links
Datoer for undersøgelser
Studer store datoer
Studiestart
Primær færdiggørelse (Faktiske)
Studieafslutning (Faktiske)
Datoer for studieregistrering
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først opslået (Skøn)
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
- MyNewGut, Task 3.3
- Grant Agreement no: 613979 (Andet bevillings-/finansieringsnummer: EU 7th Framework Programme)
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