Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers
Abstract Plant-based diets like vegetarian or vegan diets might influence circulating levels of inflammatory biomarkers, thereby reducing the risk of chronic diseases. This systematic review and meta-analysis aimed to investigate the associations of veganism and vegetarianism with circulating inflam...
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Nature Portfolio
2020
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oai:doaj.org-article:ce84c45d8cb949beb72c5db6de233ba02021-12-02T11:43:36ZSystematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers10.1038/s41598-020-78426-82045-2322https://doaj.org/article/ce84c45d8cb949beb72c5db6de233ba02020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78426-8https://doaj.org/toc/2045-2322Abstract Plant-based diets like vegetarian or vegan diets might influence circulating levels of inflammatory biomarkers, thereby reducing the risk of chronic diseases. This systematic review and meta-analysis aimed to investigate the associations of veganism and vegetarianism with circulating inflammatory biomarkers in comparison to omnivores. Literature search was conducted in Pubmed and EMBASE until April 2020 and mean differences of biomarkers were assessed for: C-reactive protein (CRP), interleukin-6 (IL-6), interleukin-18 (IL-18), interleukin-1 receptor antagonist (IL-1 RA), tumor necrosis factor-alpha (TNF-ɑ), E-selectin, intercellular adhesion molecule-1 (ICAM-1), monocyte chemoattractant protein-1 (MCP-1), adiponectin, omentin-1 and resistin. Of initially identified 1073 publications, 21 cross-sectional studies met the inclusion criteria and were included in the systematic review and meta-analysis. Vegan diet was associated with lower levels of CRP compared to omnivores [mean difference − 0.54 mg/l, 95%-CI: − 0.79 to − 0.28, p < 0.0001]. This association was less pronounced in vegetarians [mean difference − 0.25 mg/l, 95%-CI: − 0.49 to 0.00, p = 0.05]. In patients with impaired kidney function, the association between vegetarian nutrition and CRP was much stronger with − 3.91 mg/l (95%-CI: − 5.23 to − 2.60; p < 0.0001). No substantial effects were observed for all other inflammatory biomarkers. Despite strong associations between CRP and a vegan or vegetarian diet were seen, further research is needed, as most inflammatory biomarkers were investigated only in single studies so far.Juliane MenzelAfraa JabakhanjiRonald BiemannKnut MaiKlaus AbrahamCornelia WeikertNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020) |
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Medicine R Science Q Juliane Menzel Afraa Jabakhanji Ronald Biemann Knut Mai Klaus Abraham Cornelia Weikert Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
description |
Abstract Plant-based diets like vegetarian or vegan diets might influence circulating levels of inflammatory biomarkers, thereby reducing the risk of chronic diseases. This systematic review and meta-analysis aimed to investigate the associations of veganism and vegetarianism with circulating inflammatory biomarkers in comparison to omnivores. Literature search was conducted in Pubmed and EMBASE until April 2020 and mean differences of biomarkers were assessed for: C-reactive protein (CRP), interleukin-6 (IL-6), interleukin-18 (IL-18), interleukin-1 receptor antagonist (IL-1 RA), tumor necrosis factor-alpha (TNF-ɑ), E-selectin, intercellular adhesion molecule-1 (ICAM-1), monocyte chemoattractant protein-1 (MCP-1), adiponectin, omentin-1 and resistin. Of initially identified 1073 publications, 21 cross-sectional studies met the inclusion criteria and were included in the systematic review and meta-analysis. Vegan diet was associated with lower levels of CRP compared to omnivores [mean difference − 0.54 mg/l, 95%-CI: − 0.79 to − 0.28, p < 0.0001]. This association was less pronounced in vegetarians [mean difference − 0.25 mg/l, 95%-CI: − 0.49 to 0.00, p = 0.05]. In patients with impaired kidney function, the association between vegetarian nutrition and CRP was much stronger with − 3.91 mg/l (95%-CI: − 5.23 to − 2.60; p < 0.0001). No substantial effects were observed for all other inflammatory biomarkers. Despite strong associations between CRP and a vegan or vegetarian diet were seen, further research is needed, as most inflammatory biomarkers were investigated only in single studies so far. |
format |
article |
author |
Juliane Menzel Afraa Jabakhanji Ronald Biemann Knut Mai Klaus Abraham Cornelia Weikert |
author_facet |
Juliane Menzel Afraa Jabakhanji Ronald Biemann Knut Mai Klaus Abraham Cornelia Weikert |
author_sort |
Juliane Menzel |
title |
Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
title_short |
Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
title_full |
Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
title_fullStr |
Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
title_full_unstemmed |
Systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
title_sort |
systematic review and meta-analysis of the associations of vegan and vegetarian diets with inflammatory biomarkers |
publisher |
Nature Portfolio |
publishDate |
2020 |
url |
https://doaj.org/article/ce84c45d8cb949beb72c5db6de233ba0 |
work_keys_str_mv |
AT julianemenzel systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers AT afraajabakhanji systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers AT ronaldbiemann systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers AT knutmai systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers AT klausabraham systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers AT corneliaweikert systematicreviewandmetaanalysisoftheassociationsofveganandvegetariandietswithinflammatorybiomarkers |
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