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A Pilot Study on the Metabolic Impact of Mediterranean Diet in Type 2 Diabetes: Is Gut Microbiota the Key?

dc.contributor.authorIsmael, S
dc.contributor.authorSilvestre, MP
dc.contributor.authorVasques, M
dc.contributor.authorAraújo, JR
dc.contributor.authorMorais, J
dc.contributor.authorDuarte, MI
dc.contributor.authorPestana, D
dc.contributor.authorFaria, A
dc.contributor.authorPereira-Leal, JB
dc.contributor.authorVaz, J
dc.contributor.authorRibeiro, P
dc.contributor.authorTeixeira, D
dc.contributor.authorMarques, C
dc.contributor.authorCalhau, C
dc.date.accessioned2021-05-10T15:37:49Z
dc.date.available2021-05-10T15:37:49Z
dc.date.issued2021-04-08
dc.description.abstractThe Mediterranean diet (MD) has been recommended for type 2 diabetes (T2D) treatment. The impact of diet in shaping the gut microbiota is well known, particularly for MD. However, the link between MD and diabetes outcome improvement is not completely clear. This study aims to evaluate the role of microbiota modulation by a nonpharmacological intervention in patients with T2D. In this 12-week single-arm pilot study, nine participants received individual nutritional counseling sessions promoting MD. Gut microbiota, biochemical parameters, body composition, and blood pressure were assessed at baseline, 4 weeks, and 12 weeks after the intervention. Adherence to MD [assessed by Mediterranean Diet Adherence Screener (MEDAS) score] increased after the intervention. Bacterial richness increased after 4 weeks of intervention and was negatively correlated with fasting glucose levels and Homeostatic Model Assessment for Insulin Resistance (HOMA-IR). Prevotella to Bacteroides ratio also increased after 4 weeks. In contrast, glycated haemoglobin (HbA1c) and HOMA-IR were only decreased at the end of study. Alkaline phosphatase activity was assessed in fecal samples and was negatively correlated with HbA1c and positively correlated with bacterial diversity. The results of this study reinforce that MD adherence results in a better glycemic control in subjects with T2D. Changes in gut bacterial richness caused by MD adherence may be relevant in mediating the metabolic impact of this dietary intervention.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationNutrients. 2021 Apr 8;13(4):1228pt_PT
dc.identifier.doi10.3390/nu13041228pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.17/3692
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.subjectMediterranean dietpt_PT
dc.subjectGut microbiotapt_PT
dc.subjectDiabetes Type 2pt_PT
dc.subjectHCC ENDpt_PT
dc.titleA Pilot Study on the Metabolic Impact of Mediterranean Diet in Type 2 Diabetes: Is Gut Microbiota the Key?pt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.issue4pt_PT
oaire.citation.startPage1228pt_PT
oaire.citation.titleNutrientspt_PT
oaire.citation.volume13pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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