Abstract Title:

High-fat diet, adipokines and low-grade inflammation are associated with disrupted tendon healing: a systematic review of preclinical studies.

Abstract Source:

Br Med Bull. 2021 May 28. Epub 2021 May 28. PMID: 34057461

Abstract Author(s):

Silvia Elli, Gabriele Schiaffini, Marina Macchi, Matteo Spezia, Emanuele Chisari, Nicola Maffulli

Article Affiliation:

Silvia Elli


BACKGROUND: The aetiopathogenesis of tendinopathy is uncertain, but inflammation may play a role in the early phase of tendinopathy and in tendon healing response. We investigated the most up-to-date evidence about the association between obesity, high-fat diet and tendinopathy, focusing on the role of adipokines, inflammatory pathways and molecular changes.

SOURCES OF DATA: A systematic review was performed searching PubMed, Embase and Cochrane Library databases following the PRISMA guidelines. We included studies of any level of evidence published in peer-reviewed journals. The risk of bias (SIRCLE) was assessed, as was the methodological quality (CAMARADES) of the included studies. We excluded all the articles with a high risk of bias and/or low quality after the assessment. After applying the inclusion and exclusion criteria, we included 14 studies of medium or high quality.

AREAS OF AGREEMENT: A high-fat diet negatively affects tendon quality, increasing the risk of rupture and tendinopathy.

AREAS OF CONTROVERSY: Controversial evidence exists on both tendon fat infiltration secondary to a dysregulation of the lipid metabolism and of a molecular effect of inflammatory pathways.

GROWING POINTS: The secretion of adipokines is strictly related to fat ingestion and body composition and can potentially act on tendon physiology and injury.

AREAS TIMELY FOR DEVELOPING RESEARCH: Adipokines, low-grade inflammation and fat intake play a role in disrupting tendon healing and setting up tendinopathy. Further high-quality research is needed to better define the molecular pathways involved.

Study Type : Review

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