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RESEARCH PRODUCT

Endothelial function, adipokine serum levels and white matter hyperintesities in subjects with diabetic foot syndrome.

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Abstract Context No study has analyzed the prevalence of white matter hyperintensities (WMHs) in subjects with diabetic foot syndrome (DFS) and their relationship to adipokine serum levels and indexes of endothelial and cognitive performance. Objective To evaluate omentin and vaspin serum levels and the prevalence of WMHs in subjects with DFS and to analyze their relationship with other endothelial, arterial stiffness, and cognitive functions. Design Case-control study enrolling 40 subjects with DFS, 40 diabetic subjects without foot complications, 40 controls with foot lesions without diabetes, and 40 patients without diabetes mellitus. Main Outcome Measures Pulse wave velocity (PWV), augmentation index, reactive hyperemia index (RHI), serum vaspin and omentin levels, Fazekas score, and Mini-Mental State Examination (MMSE). Results Subjects with DFS showed higher mean PWV values when compared with diabetic controls and lower RHI values when compared with controls. They also showed a lower mean MMSE score, significantly lower omentin serum levels, and a higher prevalence of grade 2 severity of periventricular hyperintensities (PVHs). We observed a significant positive correlation between PWV and PVH and between Fazekas score and PWV among diabetic subjects, whereas among subjects with diabetic foot we observed a significant negative correlation between PVH and RHI. Conclusions Diabetes seems to be more associated with endothelial function disturbance in comparison with patients with diabetic foot that exhibit a more strict association with microvascular brain damage as indicated by our significant finding of an association with PVHs.