Chapter title |
Dual Behavior of Exosomes in Septic Cardiomyopathy
|
---|---|
Chapter number | 7 |
Book title |
Exosomes in Cardiovascular Diseases
|
Published in |
Advances in experimental medicine and biology, January 2017
|
DOI | 10.1007/978-981-10-4397-0_7 |
Pubmed ID | |
Book ISBNs |
978-9-81-104396-3, 978-9-81-104397-0
|
Authors |
Valter Vinícius Silva Monteiro, Jordano Ferreira Reis, Rafaelli de Souza Gomes, Kely Campos Navegantes, Marta Chagas Monteiro |
Abstract |
Sepsis is one of the main causes of ICU hospitalization worldwide, with a high mortality rate, and is associated with a large number of comorbidities. One of the main comorbidities associated with sepsis is septic cardiomyopathy. This process occurs mainly due to mechanisms of damage in the cardiovascular system that will lead to changes in cardiovascular physiology, such as decreased Ca(2+) response, mitochondrial dysfunction and decreased β-adrenergic receptor response. Within this process the exosomes play an important role in the pathophysiology of this disease, in which the exosomal content is related to mechanisms that will trigger its development. After platelet activation through ROS exposition, exosomes containing high concentrations of NADPH are released in heart blood vessels, those exosomes will be internalized in endothelial cells leading to cell death and cardiac dysfunction. On the opposite, exosomes derived from mesenchymal stem cells contain miR-223, that have anti-inflammatory properties, are released in less quantities in septic patients causing an imbalance that leads to cardiac dysfunction. |
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Demographic breakdown
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Professor | 2 | 6% |
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Unknown | 10 | 30% |