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Biotilgængelighed fra kikærter måltider hos ileostomister?

10. november 2026 opdateret af: University of Ulster

Biotilgængelighed af makronæringsstoffer og bioaktive forbindelser fra kikærter måltider: en ileostomistudie.

The matrix of a food can significantly affect how well humans can absorb and use nutrients. Plants like fruits, vegetables, nuts, grains, and legumes have cell walls that form a network around their cells. These cell walls are a barrier for the digestive system to break down completely, which can make it harder to digest the food and get energy from it. This study will explore how the integrity of plant cell walls affects how well humans can absorb macronutrients (protein, fat and carbohydrates) and beneficial compounds e.g. phytochemicals. The study will compare two chickpea meals that have similar nutrients and energy content but differ in the amount of intact plant cell walls e.g. chickpea salad meal (INTACT diet) and chickpea burger meal (BROKEN diet).

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The energy content of food can be in principle calculated by multiplying the content of each energy-yielding substrate by the corresponding heat of combustion. However, only part of this energy yielding substrates is converted to energy because of their incomplete digestion and absorption in the gastrointestinal tract. The structural composition of foods, known as the food matrix, significantly affects nutrient bioavailability. One such structural feature is the integrity of plant tissues characterised by the interconnected, continuous network of cell walls which surround and protect plant cells. When cellular integrity is retained, macronutrients are naturally "encapsulated" within cell walls which effectively reduces the rate and the extent of their digestibility by 6-7% compared to a diet poor in plant-based foods. This study aims to investigate the effect of plant tissue integrity on the total energy excretion of a diet, bioavailability of macronutrients and bioactive compounds, and on plasma levels of glucose, essential amino acids and triglycerides. The investigators will do this by comparing two diets which have (approximately) the same composition in macronutrients and energy but different levels of plant tissues integrity, namely a diet rich in intact plant tissues (INTACT diet), and a diet poor in such intact plant tissues (BROKEN diet). The investigators will use an ileostomy model to be able to determine the difference in energy excretion at the level of the terminal ileum.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

13

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • N.Ireland
      • Coleraine, N.Ireland, Det Forenede Kongerige, BT52 1SA
        • Human Intervention Studies Unit, Ulster University

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 60 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Previously had an ileostomy
  • ≥1.5-years post-operative
  • Aged 18-60 years
  • Males and females (not currently pregnant/lactating)
  • Non-smokers
  • Not allergic to nuts and celery

Exclusion Criteria:

  • Never had an ileostomy
  • <1.5-year post-operative
  • Not aged 18-60 years
  • Pregnant/lactating female
  • Smokers
  • Allergic to nuts and celery

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Andet
  • Tildeling: Randomiseret
  • Interventionel model: Crossover opgave
  • Maskning: Enkelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Intakt måltid

Salad meal containing intact chickpeas

Eksperimentel: Brudt måltid

Burger meal containing chickpea flour

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Ileal fluid energy content
Tidsramme: Change over 8 hours comparison between treatments

Energy content calculated by dry matter (g/100g dry basis)

Change over 8 hours comparison between treatments

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Cirkulerende triglyceridniveauer
Tidsramme: Skift over 8 timers sammenligning mellem behandlinger
Skift over 8 timers sammenligning mellem behandlinger
Ileal fluid macronutrient content
Tidsramme: Change over 8 hours comparison between treatments

Measured by dry matter (g/100g dry basis)

Change over 8 hours comparison between treatments
Ileal fluid alkylresorcinol content
Tidsramme: Change over 8 hours comparison between treatments

Measured by Mass Spec

Change over 8 hours comparison between treatments
Ileal fluid carotenoid content
Tidsramme: Change over 8 hours comparison between treatments

Measured by Mass Spec

Change over 8 hours comparison between treatments
Circulating glucose concentration
Tidsramme: Change over 8 hours comparison between treatments

Blood concentrations of glucose using glucometer

Change over 8 hours comparison between treatments
Urinary phenolic content
Tidsramme: Change over 8 hours comparison between treatments

Phenolic concentration e.g. hippuric acid in urine

Change over 8 hours comparison between treatments
Circulating insulin, levels
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating essential amino acid levels
Tidsramme: Change over 8 hours comparison between treatments

Blood concentrations of amino acids

Change over 8 hours comparison between treatments
Circulating levels of GLP-1
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating levels of GIP
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating levels of ghrelin
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating levels of CKK
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating levels of leptin
Tidsramme: Change over 8 hours comparison between treatments

Measured by ELISA in μg/mL.

Change over 8 hours comparison between treatments
Circulating levels of bioactive peptides
Tidsramme: Change over 8 hours comparison between treatments

Blood concentrations of legume bioactives

Change over 8 hours comparison between treatments

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Samarbejdspartnere

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

19. marts 2025

Primær færdiggørelse (Faktiske)

15. juli 2025

Studieafslutning (Faktiske)

15. juli 2025

Datoer for studieregistrering

Først indsendt

25. marts 2025

Først indsendt, der opfyldte QC-kriterier

3. april 2025

Først opslået (Faktiske)

10. april 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

12. november 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

10. november 2026

Sidst verificeret

1. november 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • REC/24/0083

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

INGEN

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