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Zelicha, H.* ; Kaplan, A.* ; Yaskolka Meir, A.* ; Rinott, E.* ; Tsaban, G.* ; Blüher, M. ; Klöting, N. ; Ceglarek, U.* ; Isermann, B.* ; Stumvoll, M.* ; Chassidim, Y.* ; Shelef, I.* ; Hu, F.B.* ; Shai, I.*

Altered proteome profiles related to visceral adiposity may mediate the favorable effect of green Mediterranean diet: The DIRECT-PLUS trial.

Obesity, DOI: 10.1002/oby.24036 (2024)
Publ. Version/Full Text DOI PMC
Open Access Gold (Paid Option)
Creative Commons Lizenzvertrag
OBJECTIVE: The objective of this study was to explore the effects of a green Mediterranean (green-MED) diet, which is high in dietary polyphenols and green plant-based protein and low in red/processed meat, on cardiovascular disease and inflammation-related circulating proteins and their associations with cardiometabolic risk parameters. METHODS: In the 18-month weight loss trial Dietary Intervention Randomized Controlled Trial Polyphenols Unprocessed Study (DIRECT-PLUS), 294 participants with abdominal obesity were randomized to basic healthy dietary guidelines, Mediterranean (MED), or green-MED diets. Both isocaloric MED diet groups consumed walnuts (28 g/day), and the green-MED diet group also consumed green tea (3-4 cups/day) and green shakes (Mankai plant shake, 500 mL/day) and avoided red/processed meat. Proteome panels were measured at three time points using Olink CVDII. RESULTS: At baseline, a dominant protein cluster was significantly related to higher phenotypic cardiometabolic risk parameters, with the strongest associations attributed to magnetic resonance imaging-assessed visceral adiposity (false discovery rate of 5%). Overall, after 6 months of intervention, both the MED and green-MED diets induced improvements in cardiovascular disease and proinflammatory risk proteins (p < 0.05, vs. healthy dietary guidelines), with the green-MED diet leading to more pronounced beneficial changes, largely driven by dominant proinflammatory proteins (IL-1 receptor antagonist protein, IL-16, IL-18, thrombospondin-2, leptin, prostasin, galectin-9, and fibroblast growth factor 21; adjusted for age, sex, and weight loss; p < 0.05). After 18 months, proteomics cluster changes presented the strongest correlations with visceral adiposity reduction. CONCLUSIONS: Proteomics clusters may enhance our understanding of the favorable effect of a green-MED diet that is enriched with polyphenols and low in red/processed meat on visceral adiposity and cardiometabolic risk.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords Interleukin-1 Receptor Antagonist; Stem-cell Factor; Serum-levels; Weight-loss; Obesity; Tissue; Fat; Inflammation; Biomarkers; Risk
ISSN (print) / ISBN 1930-7381
e-ISSN 1930-739X
Journal Obesity
Publisher Wiley
Publishing Place 111 River St, Hoboken 07030-5774, Nj Usa
Non-patent literature Publications
Reviewing status Peer reviewed
Institute(s) Helmholtz Institute for Metabolism, Obesity and Vascular Research (HI-MAG)
Grants The California Walnuts Commission