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Τρίτη 14 Μαρτίου 2017

Saturated fatty acids recognition by the CD14-TLR4-MD2 complex may engage in the presurgical anxiety-induced persistent postsurgical pain

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Publication date: Available online 14 March 2017
Source:Medical Hypotheses
Author(s): Zuoxia Zhang, Zhengliang Ma
It has been proved that presurgical anxiety can induce the development and progression of persistent postsurgical pain through elevating circulating corticosterone levels and activating the glucocorticoids receptor. Under stressful circumstances, the concentration of blood saturated fatty acids (SFAs) increases rapidly to provide enough ATP for individuals' survival owing to stress hormones such as glucocorticoid, catecholamine and glucagon. It is reported that SFAs can trigger an inflammatory response through CD14-TLR4-MD2 complex. The role of TLR4 and its downstream signaling pathway has been confirmed in the pathogenesis of cancer pain and inflammatory pain. Furthermore, a newly clinical research uncovers that the children with recurrent abdominal pain, which is triggered by early psychosomatic stress, have higher levels of SFAs than healthy individuals. We therefore put forward the hypothesis that the elevated level of SFAs induced by stress hormones may be engaged in the presurgical anxiety-induced persistent postsurgical pain. If established, it's of important clinical significance, which will make great contributions to the prevention and treatment of the presurgical anxiety-induced persistent postsurgical pain.



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