Cited by 88Fatty Acid Research and HealthAdipokines, Inflammation, and Metabolic DiseasesFood composition and properties

Effect of Flaxseed Intervention on Inflammatory Marker C-Reactive Protein: A Systematic Review and Meta-Analysis of Randomized Controlled Trials

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Ren, Guan-Yu, Chen, Chun-Yang, Chen, Guo-Chong, Chen, Wei-Guo, Pan, An, Pan, Chen-Wei, Zhang, Yong-Hong, Qin, Li-Qiang +1 more·2016·Nutrients

Abstract

Functional food-flaxseed and its derivatives (flaxseed oil or lignans) are beneficial for human health, possibly because of their anti-inflammatory effects. C-reactive protein (CRP), a sensitive marker of inflammation was chosen to evaluate the anti-inflammatory effects of flaxseed. We searched randomized controlled trials from PubMed and the Cochrane Library in October 2015 and conducted a meta-analysis to evaluate the effectiveness of flaxseed and its derivatives on CRP. The mean differences (net change) in CRP (mg/L) concentrations were pooled with a random- or a fixed-effects model depending on the results of heterogeneity tests. Overall, flaxseed interventions had no effects on reduction of CRP (p = 0.428). The null effects were consistent in the subgroup analysis with multiple studies and population characteristics. Significant heterogeneity was observed in most of the analyses. Meta-regression identified baseline body mass index (BMI) as a significant source of heterogeneity (P-interaction = 0.032), with a significant reduction in CRP of 0.83 mg/L (95% confidence interval −1.34 to −0.31; p = 0.002) among subjects with a BMI of ≥30 kg/m2. In conclusion, our meta-analysis did not find sufficient evidence that flaxseed and its derivatives have a beneficial effect on reducing circulating CRP. However, they may significantly reduce CRP in obese populations.

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Authors
Ren, G.-Y., Chen, C.-Y., Chen, G.-C., Chen, W.-G., Pan, A., Pan, C.-W., Zhang, Y.-H., Qin, L.-Q., & Chen, L.-H.
Affiliations
  • Soochow University (CN)
  • Department of Urology, The First Affiliated Hospital of Soochow University, Soochow University, 188 Shizi street, Suzhou 215006, China
  • Huazhong University of Science and Technology (CN)
  • Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Department of Nutrition and Food Hygiene, School of Public Health, Soochow University, 199 Renai Road, Dushu Lake Higher Education Town, Suzhou 215123, China
Venue
Nutrients
Publisher
MDPI AG
Published
2016-03-04
Volume
8
Issue
3
Pages
136
ISSN
2072-6643 (ISSN-L)
OpenAlex
W2291962780
Cited by
88
References
63
Citations by year
2026: 3 · 2025: 6 · 2024: 7 · 2023: 8 · 2022: 6 · 2021: 18 · 2020: 14 · 2019: 10 · 2018: 5 · 2017: 8 · 2016: 2 · 2012: 1
FWCI
1.12
Type
journal article
Language
en
Open access
Locations
  • Nutrients (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • National University of Singapore (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
  • Natural Science Foundation of Jiangsu Province (BK20140372)
  • Postgraduate Innovation Cultivating Project in Jiangsu Province (SJLX_0572)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Fatty Acid Research and Health
  • Health Sciences › Medicine › Epidemiology › Adipokines, Inflammation, and Metabolic Diseases
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
Keywords
flaxseed, C-reactive protein, inflammation, anti-inflammatory activity, functional foods, linseed oil, lignans, obesity, body mass index, circulating inflammatory markers
MeSH terms
Adult, C-Reactive Protein, Diet, Female, Humans, Inflammation, Linseed Oil, Male, Middle Aged, Obesity, Risk Factors, Seeds, Biomarkers, Body Mass Index, Randomized Controlled Trials as Topic, Treatment Outcome, Lignans, Inflammation Mediators, Flax

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