Depression and Cardiovascular Autonomic Control

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DEPRESSION AND CARDIOVASCULAR AUTONOMIC CONTROL: A MATTER OF VAGUS AND SEX PARADOX.

Abstract
Depression is a well-established stress-related risk factor for several diseases, mainly for those with cardiovascular outcomes. The mechanisms that link depression disorders with cardiovascular diseases (CVD) include dysfunctions of the autonomic nervous system. Heart rate variability analysis is a widely-used non-invasive method that can simultaneously quantify the activity of the two branches of cardiac autonomic neural control and provide insights about their pathophysiological alterations. Recent scientific literature suggests that sex influences the relationship between depressive symptoms and cardiac autonomic dysfunction. Moreover, a few studies highlight a possible sex paradox: depressed women, despite a greater vagal tone, experience a higher risk of adverse cardiovascular events than depressed men. Although there are striking sex differences in the incidence of depression, scanty data on this topic are available. Lastly, studies on the heart-brain axis bidirectionality and the role of sex are fundamental not only to clarify the biological bases of depression-CVD comorbidity, but also to develop alternative therapies, where vagus nerve appears to be a promising target of non-invasive neuromodulation techniques.

PMID: 32598983 [PubMed – as supplied by publisher]

Neurosci Biobehav Rev. 2020 Jun 26;:

Authors: Tobaldini E, Carandina A, Toschi-Dias E, Erba L, Furlan L, Sgoifo A, Montano

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