Established risk factors for the metabolic syndrome as diabetes and arterial hypertension are believed to be the cause of arteriosclerosis and subsequently following diseases like coronary heart disease, apoplexy, or chronic renal failure. Based on broad evidence from the already available experimental literature and clinical experience, an alternative hypothesis is presented that puts an increased vessel and organ stiffness to the beginning of the pathophysiological scenario. The stiffness itself is caused by a persistent activation of mechano-sensitive cation channels like the epithelial/endothelial sodium channel. A further enhancement takes place by proteins like JACD and RhoA coupled phospholipase C coupled G-protein receptors and integrins. A self-enhancing positive feedback loop by activation of YAP/TAZ signaling is a further central pillar of this theory. Further investigations are necessary to verify this hypothesis. If this hypothesis could be confirmed fundamental changes regarding the pharmacologic therapy of the diseases that are currently summarizes as metabolic syndrome would be the consequence.
Metabolic Syndrome , Vascular Stiffness , Humans , Diabetes Mellitus/etiology , Diabetes Mellitus/physiopathology , Epithelial Sodium Channels/metabolism , Hypertension/etiology , Hypertension/physiopathology , Metabolic Syndrome/ethnology , Metabolic Syndrome/physiopathology , Signal Transduction , YAP-Signaling Proteins/metabolism , Transcriptional Coactivator with PDZ-Binding Motif Proteins/metabolism
