Key result
AMI linked to higher culprit artery sCD40, sCD40L, TNFα, and sTNF-RI levels versus angina.
Why the study?
There is little known about concentrations of pro-inflammatory mediators in the cardiac milieu of patients suffering from acute myocardial infarction.
Are levels of pro-inflammatory mediators (sCD40, sCD40L, TNFα, and TNF-RI) elevated in the culprit coronary artery during acute myocardial infarction compared to stable and unstable angina?
Observational (n=110)
Are levels of pro-inflammatory mediators (sCD40, sCD40L, TNFα, and TNF-RI) elevated in the culprit coronary artery during acute myocardial infarction compared to stable and unstable angina?
Answers are grounded in this paper and cite their sources.
Pro-inflammatory mediators are significantly elevated in the local coronary blood flow at the site of infarction during AMI, highlighting the localized inflammatory response.
Inflammatory processes are involved in the pathogenesis of coronary artery disease and acute myocardial infarction (AMI). Yet there is little known about concentrations of pro-inflammatory mediators in the cardiac milieu of patients suffering from AMI. The aim of this study was to evaluate blood samples directly obtained from the culprit coronary artery during AMI. Serum samples were obtained from the culprit coronary artery of AMI patients (n=39) using a X-sizer thrombectomy system. Sera from patients with stable angina (SA, n=34) and unstable angina (UA, n=37) served as controls. Levels of sCD40, sCD40L, TNFα, and sTNF-RI were determined by enzyme-linked immunosorbent assays. Levels of sCD40L and sCD40 were increased in the AMI group when compared to patients suffering from SA and UA. Levels of both inflammatory markers were highest in the culprit coronary artery. Increased concentrations of TNFα and sTNF-RI evidenced a further inflammatory response at the site of infarction. We conclude that mediators of inflammation are heightened in the coronary blood flow during myocardial infarction. Our observations extend the current knowledge of the inflammatory cascade during myocardial infarction.
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Höetzenecker et al. (2009) conducted an observational in Acute myocardial infarction (n=110). Acute myocardial infarction vs. Stable angina and unstable angina was evaluated on Levels of sCD40, sCD40L, TNFα, and sTNF-RI. Acute myocardial infarction was associated with increased levels of sCD40, sCD40L, TNFα, and sTNF-RI in the culprit coronary artery compared to stable and unstable angina.
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