Dietary Arachidonic Acid, Obesity and Atopic Respiratory Disease

NCT ID: NCT02525354

Last Updated: 2015-08-17

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

60 participants

Study Classification

OBSERVATIONAL

Study Start Date

2001-10-31

Study Completion Date

2003-05-31

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Allergy Obesity

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Eligibility Criteria

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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.
Minimum Eligible Age

18 Years

Maximum Eligible Age

40 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of New Hampshire

OTHER

Sponsor Role lead

Responsible Party

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Anthony R. Tagliaferro

Professor of Human Nutrition

Responsibility Role PRINCIPAL_INVESTIGATOR

References

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Other Identifiers

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UNH-01-2536-01

Identifier Type: -

Identifier Source: org_study_id

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