Complication : Iconcept Press : 9781922227461 : 1922227463 : 24 Mar 2018 : Chapter 1 presents a comprehensive review of placental chorioangioma, the most common type of non-trophoblastic placental tumor with no risk of metastasis. They are usually small, single and asymptomatic. Chapter 2 discusses the role of Lipoic acid (LA) as antioxidants in lowering the incidence of some pathologies of cardiovascular diseases as well as for anti-aging. LA is a natural antioxidant which is believed to have a beneficial effect on oxidative stress parameters in relation to diseases of the cardiovascular system. Chapter 3 studies the role of pericytes in human atherogensis. Pericytes are capable of proliferation, active accumulation of lipids, production of various signaling molecules and differentiation into other cell types. Chapter 4 describes a health care economic model to estimate the direct health care costs and quality-adjusted life years of coflex-treated patients compared to patients treated