The Effect of Prebiotics on Gastrointestinal Functioning and Metabolism
Effect of Prebiotic Fibre on Intestinal Health and Functioning
Studieoversikt
Status
Status
Forhold
Forhold
Intervensjon / Behandling
Intervensjon / Behandling
Detaljert beskrivelse
Studietype
Studietype
Registrering (Faktiske)
Registrering
Fase
Fase
- Ikke aktuelt
Deltakelseskriterier
Kvalifikasjonskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Beskrivelse
Inclusion Criteria:
- Overweight to obese men and women (BMI ≥ 25 kg/m2 <35 kg/m2)
- Aged 20-50 years
- Caucasian
- Normal fasting glucose (<6.1 mmol/L.)
- Normal blood pressure (systolic blood pressure 100-140 mmHg, diastolic blood pressure 60-90 mmHg)
- Weight stable in last 3 months (±2 kg)
- A low defecation frequency, <4 times/week and no constipation or underlying pathology, as determined by gastro-intestinal questionnaires).
- A slow whole gut transit (>35h)
Exclusion Criteria:
- Woman lactating, pregnant (where pregnancy is defined as the state of a female after conception and until the termination of gestation, confirmed by a positive hCG laboratory test) or (post)-menopausal
- Regular smokers
- People with intensive fitness training, eg. athletes (≥3 per week ≥ 1 hour training)
- Diabetes Mellitus (defined as FPG ≥ 7.0 mmol/l and or 2h PG ≥ 11.1 mmol/l)
- Gastro-intestinal diseases or abdominal surgery, cardiovascular diseases, cancer, liver or kidney malfunctioning (determined based on ALAT and creatinine levels, respectively) disease with a life expectation shorter than 5 years
- Following a hypocaloric diet
- Gluten intolerance
- Regular use of laxation products, or use of antibiotics, probiotics or prebiotics 3 months prior to the start of the study
More than 2 symptoms occurring over a period of 12 weeks in the preceding 12 months such as
- Straining in >1/4 defecations;
- Lumpy or hard stools in >1/4 defecations;
- Sensation of incomplete evacuation in >1/4 defecations;
- Sensation of anorectal obstruction/blockade in >1/4 defecations
- Manual maneuvers to facilitate >1/4 defecations (e.g., digital evacuation, support of the pelvic floor); and/or
- <3 defecations/week
- Current use of medication interfering with study intervention or interfering with study endpoints/hypotheses
- Not to be able to understand the study information
- Blood donation 2 months prior to the study and during the study
- Participation in other studies
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Grunnvitenskap
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Trippel
Antall våpen
Våpen og intervensjoner
Deltakergruppe / ArmDeltakergruppe / Arm |
Intervensjon / BehandlingIntervensjon / Behandling |
|---|---|
|
Placebo komparator: Placebo
12 weeks placebo maltodextrin 15g/day ( 5 g in beverage, to be consumed three times a day)
|
12 weeks daily intake of 15g of maltodextrin
Andre navn:
|
|
Eksperimentell: soluble wheat bran fibre
12 weeks soluble wheat bran fibre 15g/day (5 g in beverage, to be consumed three times a day)
|
12 weeks daily intake of 15g of soluble wheat bran fibre
|
Hva måler studien?
Primære resultatmål
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Whole gut transit time [hours]
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Whole gut transit time as measured by radio-opaque marker method
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
|
Gastric emptying [min]
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Gastric emptying measured by isotope breath test
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Oro-cecal transit time [min]
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Oro-cecal transit time measured by hydrogen breath test
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Defecation frequency (bowel movement per day)
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Defecation frequency as measured via questionnaire
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Energy expenditure
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Energy expenditure measured by indirect calorimetry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Substrate oxidation
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Fat and carbohydrate oxidation measured by indirect calorimetry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Plasma inflammatory cytokines Interleukin-6,8 and 1 (pg/ml)
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
IL-6, IL8,IL-1 measured by enzyme linked immunosorbent assay
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Adipose tissue gene expression
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Adipose tissue gene expression measured by quantitative real time polymerase chain reaction
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Gut permeability
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Gut permeability as measured by multi sugar assay
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Microbiota composition
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Microbiota composition as measured by illumina sequencing in feces
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Fecal Short chain fatty acid concentrations
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Fecal Short chain fatty acid concentrations measured by ion exchange chromatography with conductivity detection
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
|
Plasma short chain fatty acid concentrations
Tidsramme: measured at baseline at week 1 and directly after the 12 week supplementation
|
Plasma short chain fatty acid concentrations measured by liquid chromatography-mass spectrometry
|
measured at baseline at week 1 and directly after the 12 week supplementation
|
Samarbeidspartnere og etterforskere
Sponsor
Sponsor
Publikasjoner og nyttige lenker
Studierekorddatoer
Studer hoveddatoer
Studiestart
Studiestart
Primær fullføring (Faktiske)
Primær fullføring
Studiet fullført (Faktiske)
Studiet fullført
Datoer for studieregistrering
Først innsendt
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Anslag)
Først lagt ut
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Sist oppdatering lagt ut
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Andre studie-ID-numre
Andre studie-ID-numre
- NL52300.068.15
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