Fish Oil and Inflammation in Overweight Subjects

NCT ID: NCT00885053

Last Updated: 2010-01-26

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

Clinical Phase

NA

Total Enrollment

50 participants

Study Classification

INTERVENTIONAL

Study Start Date

2009-04-30

Study Completion Date

2009-12-31

Brief Summary

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The aim of this study is to investigate the effects of acute and short-term intervention with fish oil on inflammatory markers in overweight subjects.

Detailed Description

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Being overweight is associated with metabolic syndrome, cardiovascular disease, and diabetes mellitus (type 2). Adipose tissue can be regarded as an active organ, which produces an array of inflammatory mediators. This creates a state of chronic low-grade inflammation. Inflammation has been proven to be a key element in the development of atherosclerotic plaques.

The marine n-3 polyunsaturated fatty acids (PUFAs) have beneficial effects on cardiovascular disease. These effects are partly attributed to the anti-inflammatory effect of the n-3 PUFAs.

Previous studies have shown an anti-inflammatory effect of n-3 PUFAs in overweight subjects, but the studies have been conducted with a high daily dose of n-3 PUFA. We want to examine the effect of a lower dose of 1 g n-3 PUFA/day (the dose recommended by the Danish Heart Foundation).

The study is randomized, placebo-controlled and double blinded. Fifty subjects aged 30 - 75 years (postmenopausal women; waist circumference \> 80 cm and men; waist circumference \> 94 cm) will be included.

Blood samples and fatty tissue biopsies will be collected at baseline, after 1 day and after 6 weeks.

Conditions

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Overweight

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Fish oil

Group Type EXPERIMENTAL

fish oil

Intervention Type DIETARY_SUPPLEMENT

Capsules. Approximately 1000 mg n-3 PUFA daily. One day + 6 weeks

Olive oil

Group Type PLACEBO_COMPARATOR

olive oil

Intervention Type DIETARY_SUPPLEMENT

Capsules. Approximately 1 g olive oil daily. One day + 6 weeks

Interventions

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fish oil

Capsules. Approximately 1000 mg n-3 PUFA daily. One day + 6 weeks

Intervention Type DIETARY_SUPPLEMENT

olive oil

Capsules. Approximately 1 g olive oil daily. One day + 6 weeks

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Waist circumference ≥ 80 cm (females) or ≥ 94 cm (males)
* Postmenopausal (females)

Exclusion Criteria

* Daily intake of fish oil capsules
* Daily intake of NSAIDs
* HbA1c ≥ 8%
* Serum creatinine ≤ 30 mL/min
* Chronic inflammatory disease
* Other serious illness
* Inability to informed consent
Minimum Eligible Age

30 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Aalborg University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Department of Cardiology, Aalborg Hospital, Aarhus University Hospital, Denmark

Locations

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Aalborg Hospital, Aarhus University Hospital

Aalborg, , Denmark

Site Status

Countries

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Denmark

References

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Hajer GR, van Haeften TW, Visseren FL. Adipose tissue dysfunction in obesity, diabetes, and vascular diseases. Eur Heart J. 2008 Dec;29(24):2959-71. doi: 10.1093/eurheartj/ehn387. Epub 2008 Sep 5.

Reference Type BACKGROUND
PMID: 18775919 (View on PubMed)

Balkau B, Deanfield JE, Despres JP, Bassand JP, Fox KA, Smith SC Jr, Barter P, Tan CE, Van Gaal L, Wittchen HU, Massien C, Haffner SM. International Day for the Evaluation of Abdominal Obesity (IDEA): a study of waist circumference, cardiovascular disease, and diabetes mellitus in 168,000 primary care patients in 63 countries. Circulation. 2007 Oct 23;116(17):1942-51. doi: 10.1161/CIRCULATIONAHA.106.676379.

Reference Type BACKGROUND
PMID: 17965405 (View on PubMed)

Libby P, Ridker PM, Maseri A. Inflammation and atherosclerosis. Circulation. 2002 Mar 5;105(9):1135-43. doi: 10.1161/hc0902.104353.

Reference Type BACKGROUND
PMID: 11877368 (View on PubMed)

Calder PC. n-3 polyunsaturated fatty acids, inflammation, and inflammatory diseases. Am J Clin Nutr. 2006 Jun;83(6 Suppl):1505S-1519S. doi: 10.1093/ajcn/83.6.1505S.

Reference Type BACKGROUND
PMID: 16841861 (View on PubMed)

Schmidt EB, Arnesen H, de Caterina R, Rasmussen LH, Kristensen SD. Marine n-3 polyunsaturated fatty acids and coronary heart disease. Part I. Background, epidemiology, animal data, effects on risk factors and safety. Thromb Res. 2005;115(3):163-70. doi: 10.1016/j.thromres.2004.09.006.

Reference Type BACKGROUND
PMID: 15617737 (View on PubMed)

Schmidt EB, Arnesen H, Christensen JH, Rasmussen LH, Kristensen SD, De Caterina R. Marine n-3 polyunsaturated fatty acids and coronary heart disease: Part II. clinical trials and recommendations. Thromb Res. 2005;115(4):257-62. doi: 10.1016/j.thromres.2004.09.007. No abstract available.

Reference Type BACKGROUND
PMID: 15668184 (View on PubMed)

Browning LM, Krebs JD, Moore CS, Mishra GD, O'Connell MA, Jebb SA. The impact of long chain n-3 polyunsaturated fatty acid supplementation on inflammation, insulin sensitivity and CVD risk in a group of overweight women with an inflammatory phenotype. Diabetes Obes Metab. 2007 Jan;9(1):70-80. doi: 10.1111/j.1463-1326.2006.00576.x.

Reference Type BACKGROUND
PMID: 17199721 (View on PubMed)

Kris-Etherton PM, Harris WS, Appel LJ; AHA Nutrition Committee. American Heart Association. Omega-3 fatty acids and cardiovascular disease: new recommendations from the American Heart Association. Arterioscler Thromb Vasc Biol. 2003 Feb 1;23(2):151-2. doi: 10.1161/01.atv.0000057393.97337.ae. No abstract available.

Reference Type BACKGROUND
PMID: 12588750 (View on PubMed)

Other Identifiers

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ADIPOMEGA

Identifier Type: -

Identifier Source: org_study_id

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