ArticleFrontiers in cardiovascular medicine2025
Effects of fasting on endothelial function in type 2 diabetes mellitus patients: cohort study.
Article in Frontiers in cardiovascular medicine, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: The aim of this study was to investigate the effect of Ramadan fasting (RF) on markers of endothelial function and metabolic parameters in patients with type 2 diabetes mellitus (T2DM) and healthy controls. Methods: This cohort study involved 305 subjects: 167 T2DM and 138 healthy volunteers subjects. The following parameters were evaluated: body mass index (BMI), diet inflammatory index (DII), serum glucose and lipid profile and high-sensitivity C-reactive protein (hs-CRP) during three separate visits, before Ramadan (baseline), the last week of Ramadan, and during the last week of the month following Ramadan. In each visit, reactive hyperaemia index (RHI) in all participants was assessed. In diabetic patients, serum homocyteine (Hcys) was mesured at baseline and during RF. The primary endpoint was change in RHI, a validated and non-invasive measure of endothelial function. The secondary end point was change in clinical, metabolic parameters, and Hcys. Analyses used non-parametric tests and multivariable regression with multiple imputation. Results: RF significantly decreased RHI [-0.2 UI (95% CI -0.3 to -0.09); Conclusion: RF seems to be associated with unfavorable effects on endothelial function in diabetic patients but not in healthy subjects. RHI testing could help identifying diabetic patients who should not observe RF or should be closely monitored during fasting.
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