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Spices Inhibit the Formation and Absorption of Malondialdehyde From Hamburger Meat

24. oktober 2018 opdateret af: Zhaoping Li, University of California, Los Angeles

Absorption, Metabolism and Antioxidant Effects of Common Herbs

Polyphenols belong to the largest group of secondary metabolites produced by plants, mainly, in response to biotic or abiotic stresses such as infections, wounding, UV irradiation, exposure to ozone, pollutants, and other hostile environmental conditions. It is thought that the molecular basis for the protective action of polyphenols in plants is their antioxidant and free radical scavenging properties. These numerous phenolic compounds are major biologically active components of spices, aromas, essential oils, and traditional medicines. In order to investigate the impact of spice polyphenols on postprandial cytotoxic lipid peroxidation products (MDA) levels in humans, the investigators propose to achieve the following specific aims using a randomized crossover study design:

  1. To determine the effect of a ground beef patty meal with and without spices on postprandial levels of plasma malondialdehyde (MDA).
  2. To determine the effect of a ground beef patty meal with and without a spice blend on MDA accumulation in urine.

This study will determine whether spice polyphenols exert a beneficial effect by inhibition of the absorption of MDA. These findings may help to explain the potentially harmful effects of oxidizable fats found in foods and the important benefit of dietary polyphenols in ameliorating this potentially harmful effect.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

10 male subjects with type 2 diabetes mellitus who will be recruited based on inclusion and exclusion criteria. The study will be carried out in accordance with the guidelines of the Human Subjects Protection Committee of the University of California, Los Angeles. All subjects will give written informed consent before the study begins. After the screening visit, each subject will come to the Center for Human Nutrition on two 1-day test phases separated by at least one week. At each of phases, subjects will consume, in a random order, two different test meals consisting of either: a) a ground dark meat beef patty seasoned with salt only, or b) a ground dark meat beef patty seasoned with a spice mixture and salt. The subjects will be asked to avoid eating meat, poultry, or fish products for 3 days before the day of each of the two experimental phases

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

11

Fase

  • Ikke anvendelig

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

20 år til 45 år (Voksen)

Tager imod sunde frivillige

Ingen

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Male or female, 20-45 years of age
  • Non-smokers, or smoke < 1 cigarette per day
  • Not exercising heavily (< 4 x 30 minutes aerobic exercise per week)
  • Willing to maintain normal activity and eating patterns for the duration of the study
  • Willing to avoid meat, fish or poultry for three days on two occasions prior to the test procedure
  • Consuming less than two alcoholic drinks per day
  • Not taking dietary supplements
  • No known allergy to beef, cloves, cinnamon, oregano, turmeric, cumin, rosemary, sage, red pepper, ginger, black pepper, paprika or garlic

Exclusion Criteria:

  • Metabolic disorders
  • Taking dietary supplements
  • Smoking >1 cigarette/day
  • Exercising heavily (>4x30 min of aerobic exercise/wk)
  • Drinking more than 2 glasses of wine, 2 cocktails or two beers /day.
  • Allergic to beef, cloves, cinnamon, oregano, turmeric, cumin, rosemary, sage, red pepper, ginger, black pepper, paprika or garlic
  • Known HIV positive

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: Ingen (Åben etiket)

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Aktiv komparator: Hamburger meat patty with Spice Blend
Hamburger meat patty containing spice blend will be consumed on 3 separate occasions
Andet: Hamburger meat patty with spice blend
hamburger meat cooked with spice mixture
Placebo komparator: Hamburger meat patty with salt
Hamburger meat patty containing salt will be consumed on 3 separate occasions
Andet: Hamburger meat patty with salt
hamburger meat cooked with salt

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change in plasma and urinary MDA after consumption of hamburg with or without spice mixture added
Tidsramme: 2 days
Change in plasma and urinary MDA after consumption of 250 g hamburg meat with 11.3 g spice mixture added or without spice
2 days

Samarbejdspartnere og efterforskere

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

Sponsor

University of California, Los Angeles

Efterforskere

  • Ledende efterforsker: Zhaoping Li, MD, PhD, David Geffen School of Medicine, UCLA Center for Human Nutrtiion

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Generelle publikationer

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

1. juni 2008

Primær færdiggørelse (Faktiske)

1. oktober 2008

Studieafslutning (Faktiske)

1. maj 2009

Datoer for studieregistrering

Først indsendt

13. august 2009

Først indsendt, der opfyldte QC-kriterier

4. december 2009

Først opslået (Skøn)

7. december 2009

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

26. oktober 2018

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

24. oktober 2018

Sidst verificeret

1. oktober 2018

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Andre undersøgelses-id-numre

  • 08-03-008-01

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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