White Matter Microstructure and Cognitive Decline in Metabolic Syndrome: a Review of Diffusion Tensor Imaging

Overview

Journal Metabolism

Specialty Endocrinology

Date 2017 Sep 19

PMID 28920863

Citations 48

Authors

Freddy J Alfaro

Anna Gavrieli

Patricia Saade-Lemus

Vasileios-Arsenios Lioutas

Jagriti Upadhyay

Vera Novak

Affiliations

Soon will be listed here.

Abstract

Metabolic syndrome is a cluster of cardiovascular risk factors defined by the presence of abdominal obesity, glucose intolerance, hypertension and/or dyslipidemia. It is a major public health epidemic worldwide, and a known risk factor for the development of cognitive dysfunction and dementia. Several studies have demonstrated a positive association between the presence of metabolic syndrome and worse cognitive outcomes, however, evidence of brain structure pathology is limited. Diffusion tensor imaging has offered new opportunities to detect microstructural white matter changes in metabolic syndrome, and a possibility to detect associations between functional and structural abnormalities. This review analyzes the impact of metabolic syndrome on white matter microstructural integrity, brain structure abnormalities and their relationship to cognitive function. Each of the metabolic syndrome components exerts a specific signature of white matter microstructural abnormalities. Metabolic syndrome and its components exert both additive/synergistic, as well as, independent effects on brain microstructure thus accelerating brain aging and cognitive decline.

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