Abstract
Angiotensinogen mediates an important role in the pathophysiology of preeclampsia, a disorder of pregnancy characterized by hypertension and proteinuria usually after 20weeks of gestation. Angiotensinogen is found in two distinct posttranslational forms in the plasma, an oxidized and a reduced (free thiol) form. Higher levels of the oxidized form are associated with an increased risk of preeclampsia. We have developed novel ELISA assays to quantitate the levels of total and free thiol angiotensinogen allowing for calculation of the amount of oxidized angiotensinogen species. We describe the methodology for performing these assays.
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