Chapter 1

Atherogenesis and Inflammation

First published: 06 May 2022

Summary

This chapter reviews the multifaceted pathology of atherosclerosis leading to plaque progression and destabilisation, with a recent update in coronary imaging modalities and novel developments in computer modelling as promising tools to help improve the understanding of cardiovascular diseases. Acute inflammation involves the rapid recruitment of neutrophils and the stimulation of the endothelium, both type I and type II activation. Enormous researches demonstrated that the oxidisation of low-density lipoprotein particles including reactive oxygen species formation in the intimal wall due to metal ion catalysis could initiate atherogenesis. Anatomical characteristics of vulnerable plaques which are prone to rupture were identified by the histological studies to have fibrous caps that are thin and rich in macrophages overlying a lipid pools. In atherosclerotic plaques, neovascularization proliferates from the adventitia into the arterial wall in order to supply nutrition and inflammatory cell accumulation to the lesion.

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