Journal
ANTIOXIDANTS
Volume 10, Issue 8, Pages -Publisher
MDPI
DOI: 10.3390/antiox10081162
Keywords
blueberries; antioxidants; prediabetes; hepatic dysmetabolism; gut microbiota dysbiosis
Funding
- European Regional Development Fund (FEDER), through Programa Operacional Factores de Competitividade COMPETE2020 [CENTRO-01-0145-FEDER-000012-HealthyAging2020]
- Portuguese Science and Technology Foundation (FCT) [UID/NEU/04539/2013, UID/NEU/04539/2019, UIDB/04539/2020, UIDP/04539/2020, SFRH/BD/109017/2015, PTDC/SAU-NUT/31712/2017]
- COMPETE-FEDER funds [POCI-01-0145-FEDER-007440, POCI-01-0145-FEDER-031712]
- Fundação para a Ciência e a Tecnologia [IF/00951/2014/CP1222/CT0006, PRAXIS XXI/BD/3261/94, IF/00405/2014/CP1222/CT0007, PRAXIS XXI/BD/3259/94, IF/00631/2014/CP1221/CT0004, PRAXIS XXI/BD/3250/94] Funding Source: FCT
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Prediabetes is a risk factor for developing type 2 diabetes and associated complications, and lifestyle therapy is the first-line treatment. Blueberries, with their beneficial phytochemicals like antioxidants, can help manage prediabetes and potentially prevent its progression. Future research should focus on longer-term studies to provide more robust evidence for the effective use of blueberries in prediabetes.
Prediabetes, a subclinical impairment between euglycemia and hyperglycemia, is a risk factor for the development of type 2 diabetes mellitus (T2DM) and associated micro- and macrovascular complications. Lifestyle therapy, the first-line treatment of prediabetes, includes physical exercise and dietary regimens enriched in phytochemicals with health-related properties. Blueberries (Vaccinium spp.), given their pleasant taste and great abundance in beneficial phytochemicals, have gained public interest all over the world. Along with a high antioxidant activity, this functional fruit is also well-recognized due to its hypoglycemic and insulin-sensitizing effects and has been recommended for overt T2DM management. Yet blueberries target several other pathophysiological traits, namely gut microbiota dysbiosis and hepatic dysmetabolism, that ensue when prediabetes begins and for which pharmacological interventions tend to be delayed. In this work, we revisited preclinical data from in vitro assays, animal models and human studies, aiming to disclose the potential mechanisms by which blueberries may be a fruitful source of phytochemicals able to prevent (pre)diabetes progression. Collectively, future efforts should focus on longer-term studies with standardized interventions and readouts, particularly in humans, that will hopefully bring more robust evidence and concrete guidance for blueberries' effective use in prediabetes.
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