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Dietary Arachidonic Acid, Obesity and Atopic Respiratory Disease

13. august 2015 opdateret af: Anthony R. Tagliaferro, University of New Hampshire

Obesity and Atopic-related Respiratory Disease: Possible Role of Dietary Omega 6 and 3 Fatty Acids

Epidemiological studies have shown obesity to be a risk factor of asthma. Research evidence of obesity and atopic(ie. allergic)-related respiratory diseases, has been less clear. The purpose of the present study was to test the hypothesis that the relationship between obesity and atopic-related respiratory disease in premenopausal women is mediated by a dietary imbalance of omega 6 and 3 polyunsaturated fatty acids.

Studieoversigt

Status

Afsluttet

Betingelser

Detaljeret beskrivelse

Sixty young adult obese and non obese women, with, and without asthma, were studied using a cross-sectional design. Body composition was measured by plethysmography. A fasted blood sample was taken to measure: specific and total immunoglobulin (IgE) antibodies,biochemical markers of atopy; glucose and insulin to measure insulin sensitivity; estrogen(17β-estradiol) and sex hormone-binding globulin to measure estrogen status of the women; hormone-products of fat tissue ( leptin, adiponectin, resistin, tumor necrosis factor alpha (TNFα), interleukins (IL-6,IL-18), that have been associated with both obesity and immune processes involved in asthma and allergy. Dietary intake of omega 6: linoleic acid (LA), arachidonic acid(AA); and omega 3 fatty acids: α linolenic (ALA), eicosapentanoic (EPA) and docosahexanoic (DHA) and other nutrients were assessed by food frequency questionnaire.

Undersøgelsestype

Observationel

Tilmelding (Faktiske)

60

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 40 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Kvinde

Prøveudtagningsmetode

Ikke-sandsynlighedsprøve

Studiebefolkning

Female subjects were recruited from the University and surrounding local communities, using posted flyers, website announcements, personal announcements in classes, referrals from local physicians, and word of mouth. Prospective subjects were interviewed initially by telephone.

Beskrivelse

Inclusion Criteria:

  • For asthmatics, only individuals that were willing and capable of not using asthma medications for two days prior to laboratory testing.

Exclusion Criteria:

  • An individual was excluded from the study if she had a history of high blood pressure, diabetes, heart disease, cigarette smoking, or eating disorders.
  • Women that were pregnant or lactating.

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Predictors of serum concentration of specific and total IgE antibodies in obesity
Tidsramme: one day
Measures of insulin sensitivity, plasma concentrations of leptin, adiponectin, , estrogen, IL-18,and dietary arachidonic, eicosapentanoic, docosahexanoic fatty acids were entered as independent variables; and serum concentration of specific and total IgE antibodies as dependent variable, in a forward stepwise multivariate linear regression analysis to identify which factor(s) had the greatest influence on serum concentrations of IgE antibodies in obesity.
one day

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Relationship between dietary levels of arachidonic, eicosapentanoic, docosahexanoic fatty acids and plasma concentration of leptin in obesity
Tidsramme: one day
Dietary intake of the omega 6 and 3 fatty acids of were analyzed in relation to plasma concentration of leptin in obese and non obese women.
one day
Correlation between dietary arachidonic, eicosapentanoic,and docoshexanoic fatty acids and plasma concentration of adiponectin in obesity
Tidsramme: one day
Dietary intake of the omega 6 and 3 fatty acids of were analyzed in relation to plasma concentration of adiponectin in obese and non obese women.
one day

Samarbejdspartnere og efterforskere

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

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. oktober 2001

Primær færdiggørelse (Faktiske)

1. maj 2003

Studieafslutning (Faktiske)

1. maj 2003

Datoer for studieregistrering

Først indsendt

15. juni 2015

Først indsendt, der opfyldte QC-kriterier

13. august 2015

Først opslået (Skøn)

17. august 2015

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

17. august 2015

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

13. august 2015

Sidst verificeret

1. juli 2015

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • UNH-01-2536-01

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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