Metabolic syndrome as a risk factor for neurological disorders |
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Authors: | Email author" target="_blank">Akhlaq?A?FarooquiEmail author Tahira?Farooqui Francesco?Panza Vincenza?Frisardi |
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Institution: | (1) Department of Molecular and Cellular Biochemistry, Ohio State University, Columbus, OH 43221, USA;(2) Geriatric Unit and Gerontology-Geriatric Research Laboratory, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Italy |
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Abstract: | The metabolic syndrome is a cluster of common pathologies: abdominal obesity linked to an excess of visceral fat, insulin
resistance, dyslipidemia and hypertension. At the molecular level, metabolic syndrome is accompanied not only by dysregulation
in the expression of adipokines (cytokines and chemokines), but also by alterations in levels of leptin, a peptide hormone
released by white adipose tissue. These changes modulate immune response and inflammation that lead to alterations in the
hypothalamic ‘bodyweight/appetite/satiety set point,’ resulting in the initiation and development of metabolic syndrome. Metabolic
syndrome is a risk factor for neurological disorders such as stroke, depression and Alzheimer’s disease. The molecular mechanism
underlying the mirror relationship between metabolic syndrome and neurological disorders is not fully understood. However,
it is becoming increasingly evident that all cellular and biochemical alterations observed in metabolic syndrome like impairment
of endothelial cell function, abnormality in essential fatty acid metabolism and alterations in lipid mediators along with
abnormal insulin/leptin signaling may represent a pathological bridge between metabolic syndrome and neurological disorders
such as stroke, Alzheimer’s disease and depression. The purpose of this review is not only to describe the involvement of
brain in the pathogenesis of metabolic syndrome, but also to link the pathogenesis of metabolic syndrome with neurochemical
changes in stroke, Alzheimer’s disease and depression to a wider audience of neuroscientists with the hope that this discussion
will initiate more studies on the relationship between metabolic syndrome and neurological disorders. |
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