BACKGROUND : The aim of the current study was to investigate the role of p55 TNF Receptor (p55 TNFR) , the main signaling receptor for the pro-inflammatory cytokine tumor necrosis factor (TNF) , in the development of two vascular disorders : atherosclerosis and angiotensin (Ang) II-induced abdominal aortic aneurysms (AAA).
The interactions of inflammatory cells , cytokines , and cell adhesion molecules (CAM) may be important in the pathogenesis of vascular diseases such as abdominal aortic aneurysms (AAA) , in which inflammation plays a role.
The nuclear enzyme poly (ADP-ribose) synthetase (PARS) has been shown to play an important role in the pathogenesis of ischemia/reperfusion injury and circulatory shock.
Poly (adenosine 5 ' - diphosphoribose) synthetase (PARS) is a nuclear enzyme which , when activated by DNA strand breaks , adds up to 100 adenosine 5 ' - diphosphoribose (ADP-ribose) units to nuclear proteins such as histones and PARS itself.