Study2025Open access

Inflammatory and lipemic response to red meat intake in women with and without Rheumatoid Arthritis: a single meal study within a randomized controlled trial

Sällström T, Bärebring L, Hulander E, Gjertsson I, Winkvist A, Lindqvist HM

BMC nutrition · 1 citation

Review labels

Controlled feeding

Neutral facts our review recorded about how this study was done. They describe method, never whether we like the result.

How it was studied

Design
Randomized controlled trial (classified by our AI screen)
Studied in
People
Main outcome
Health markers and function
Intake measured by
Food provided by researchers

Who paid for it

Funding
Independent funding
Government
Vetenskapsrådet
University or hospital
Göteborgs Universitet
Government
Forskningsrådet om Hälsa, Arbetsliv och Välfärd
University or hospital
University of Gothenburg
Nonprofit
Magnus Bergvalls Foundation
Government
Swedish government under the ALF agreement
Grants
Vetenskapsrådet (2021-00954); Forskningsrådet om Hälsa, Arbetsliv och Välfärd (2017-00318)

Based on 6 listed funder(s) and full-text disclosure statement.

Publication

Published
2025-04-11 · BMC Nutr · vol. 11 · issue 1 · p. 74
Publisher
BioMed Central
Cited
1 citation · more than 69% of similar papers · 0.8× the field average
References
73 works
Access
Open access (journal) · CC-BY
Research areas
Rheumatoid Arthritis Research and Therapies · Nutritional Studies and Diet · Adipokines, Inflammation, and Metabolic Diseases
Keywords
Postprandial, Medicine, Rheumatoid arthritis, Internal medicine, Meal, Lipid profile, Very low-density lipoprotein, Endocrinology, Lipoprotein, Cholesterol, Clinical nutrition, Body mass index, Insulin

6 authors

From SE

  • Torsten SällströmUniversity of Gothenburg
  • Linnea BärebringUniversity of Gothenburg
  • Erik HulanderUniversity of Gothenburg
  • Inger GjertssonUniversity of Gothenburg
  • Anna WinkvistUniversity of Gothenburg
  • Helen M. Lindqvist · correspondingUniversity of Gothenburg

Abstract

Background

The risk of atherosclerotic cardiovascular disease (ASCVD) is increased in Rheumatoid Arthritis (RA). Previous research has suggested that lipid metabolism is altered in RA, but research under postprandial conditions is scarce. The aim of this study was to investigate whether women with RA have a different lipemic and inflammatory response to a mixed meal containing red meat compared to women without RA.

Methods

Twenty-two women with RA, with modest disease activity, and 22 women without RA matched for age and body mass index (BMI) at the group level consumed a hamburger meal containing ca. 700 kcal (53 E% from fat, 27 E% from carbohydrate). Venous blood was sampled in the fasted state and after 30 min, 1, 2, 3 and 5 h and analysed for lipid species using nuclear magnetic resonance spectroscopy. Postprandial inflammation was measured by interleukin- 6 (IL- 6). The postprandial lipid response was calculated as the incremental area under the curve minimal value, and serial measurements were analysed by repeated measures analysis of variance. Lipid and inflammatory responses were compared by linear regression analysis, adjusted for age, BMI, physical activity, and baseline plasma concentration.

Results

Plasma concentrations of IL- 6, triglycerides (TGs) and very low-density lipoprotein (VLDL) particles increased significantly after the meal compared to baseline within both groups, but no differences were observed between groups. However, the women with RA had a less pronounced response in cholesterol carried in VLDL particles (p = 0.03) and in TGs in the subfraction of VLDL particles with highest density (p = 0.03). No association was found between the response in TGs and IL- 6.

Conclusion

This study does not provide compelling evidence for any difference in the lipemic or inflammatory response in women with RA compared with age- and BMI-matched women without RA following ingestion of a mixed, high-fat meal containing red meat. The modest disease activity in women with RA should be considered when interpreting these findings. Subtle group differences found in the lipids carried by VLDL particles warrant further investigation.

Trial registration

The PIRA (Postprandial Inflammation in Rheumatoid Arthritis) trial was registered 2020-01 - 28 at Clinicaltrials.gov (NCT04247009).

Abstract via Europe PMC. Copyright remains with the authors or publisher (CC BY).

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