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Dietary patterns and associations with biomarkers of inflammation in adults: a systematic review of observational studies

Hart, Michael, Torres, Susan, McNaughton, Sarah and Milte, Catherine 2021, Dietary patterns and associations with biomarkers of inflammation in adults: a systematic review of observational studies, Nutrition Journal, vol. 20, no. 1, pp. 1-14, doi: 10.1186/s12937-021-00674-9.

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Title Dietary patterns and associations with biomarkers of inflammation in adults: a systematic review of observational studies
Author(s) Hart, Michael
Torres, SusanORCID iD for Torres, Susan orcid.org/0000-0002-2599-1934
McNaughton, SarahORCID iD for McNaughton, Sarah orcid.org/0000-0001-5936-9820
Milte, CatherineORCID iD for Milte, Catherine orcid.org/0000-0003-0035-6405
Journal name Nutrition Journal
Volume number 20
Issue number 1
Article ID 24
Start page 1
End page 14
Total pages 14
Publisher BMC
Place of publication London, Eng.
Publication date 2021
ISSN 1475-2891
1475-2891
Keyword(s) Science & Technology
Life Sciences & Biomedicine
Nutrition & Dietetics
Systematic review
Dietary patterns
Dietary intake
Inflammation
Biomarker
C-reactive protein
CRP
Interleukin
Summary Abstract Background Evidence indicates that low-grade inflammation is involved in manychronic diseases of ageing. Modifiable lifestyle factors including dietcan affect low-grade inflammation. Dietary patterns allow assessment of the complex interactions of food nutrients and health and may be associated with inflammatory status. This systematic review aimed to summarises current evidence from observational studies for associations between dietary patterns and inflammatory biomarkers in the general adult population. This review followed the PRISMA guidelines. Methods We conducted a systematic search in Embase, CINAHL Complete, Global Health and MEDLINE complete databases. Search terms included terms for diet (“dietary patterns”, “diet scores”) and inflammation (“inflammation“, “c-reactive protein“, “interleukin“). Results The search produced 7161 records. Duplicates were removed leaving 3164 for screening. There were 69 studies included (60 cross-sectional, 9 longitudinal). Papers included studies that were: 1) observational studies; 2) conducted in community-dwelling adults over 18 years of age; 3) assessed dietary patterns; 4) measured specified biomarkers of inflammation and 5) published in English. Dietary patterns were assessed using diet scores (n = 45), data-driven approaches (n = 22), both a data-driven approach and diet score (n = 2). The most frequently assessed biomarkers were CRP (n = 64) and/or IL-6 (n = 22). Cross-sectionally the majority of analyses reported an association between higher diet scores (mostly Mediterranean and anti-inflammatory diet scores) and lower inflammatory markers with 82 significant associations from 133 analyses. Only 22 of 145 cross-sectional analyses using data-driven approaches reported an association between a dietary patterns and lower inflammatory markers; the majority reported no association. Evidence of an association between dietary patterns and inflammatory markers longitudinally is limited, with the majority reporting no association. Conclusions Adherence to healthy, Mediterranean and anti-inflammatory dietary scores, appear to be associated with lower inflammatory status cross-sectionally. Future research could focus on longitudinal studies using a potential outcomes approach in the data analysis. Trial registration PROSPERO Registration Number CRD42019114501.
Language eng
DOI 10.1186/s12937-021-00674-9
Indigenous content off
Field of Research 1111 Nutrition and Dietetics
HERDC Research category C1 Refereed article in a scholarly journal
Free to Read? Yes
Persistent URL http://hdl.handle.net/10536/DRO/DU:30149253

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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.