The Molecular Basis for the Link between Maternal Health and the origin of Fetal Congenital Abnormalities: An Overview of Association with Oxidative Stress


Bashir M. Matata , Maqsood M. Elahi

DOI: 10.2174/97816080528681110101
eISBN: 978-1-60805-286-8, 2011
ISBN: 978-1-60805-536-4

Indexed in: Chemical Abstracts, Scopus, EBSCO.

This e-book discusses the molecular relationship between biological systems and risk factors for in-utero oxidative insults, maternal ...[view complete introduction]
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Maternal and Fetal Metabolic Dysfunction in Pregnancy Diseases Associated with Vascular Oxidative and Nitrative Stress

- Pp. 98-115 (18)

Marcelo Gonzalez, Ernesto Munoz, Carlos Puebla, Enrique Guzman-Gutierrez, Fredi Cifuentes, Jyh K Nien, Fernando Abarzua and Andrea


<p>Molecular mechanisms are increasingly being reported allowing a better understanding of the mother health and fetal metabolic abnormalities in pregnancies that are affected by diseases. Most aspects of cellular function are regulated by a tuned equilibrium between the ability of cells to synthesize oxidants and antioxidants, and preventing the formation or blocking the actions of antioxidants. Oxidative and nitrative stresses are causative agents in human pregnancy-related disorders, including preeclampsia, intrauterine growth restriction, pre-gestational and gestational diabetes and premature delivery. An equilibrium between abundance and/or activity of reactive oxygen (ROS) and nitrogen (RNS) derived species, and antioxidant and nitrative enzyme systems are crucial in gestation. Hydrogen peroxide and superoxide radicals as well as NADPH oxidase and nitric oxide synthases (NOS) play significant contributions to maintain this physiological equilibrium in the human fetoplacental endothelium. Alterations in this relationship lead to abnormal cell function, where the endothelium is one of the targeted cells affected by these pathological conditions. Thus, altered ROS and RNS production, i.e., over the physiological permitted levels, leads to altered endothelial function, a phenomenon associated with endothelial dysfunction in pregnancy diseases. This chapter briefly reviews general aspects of oxidative and nitrative stress in the vasculature in diseases of pregnancy, and a role to NADPH oxidase, NOS and adenosine is summarized.</p>

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