alexa C-reactive protein immunohistochemical localization in normal and atherosclerotic human aortas.
Reproductive Medicine

Reproductive Medicine

Gynecology & Obstetrics

Author(s): Reynolds GD, Vance RP

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Abstract We examined immunohistochemically 104 formaldehyde-fixed, paraffin-embedded, human autopsy aortic specimens for C-reactive protein (CRP) presence and localization. In addition, we correlated immunoreactivity with a spectrum of the following histologic categories: normal aorta, fatty streak, atheromatous plaque, and fibrous plaque. Using appropriate controls, we confirmed CRP immunoreactivity in 3.3\% of normal specimens, 75\% of fatty streaks, 90.2\% of atheromatous plaques, and 64.6\% of fibrous plaques. Immunoreactivity in fatty streaks was located around collections of foam cells. Immunoreactivity in atheromatous plaques was in a bandlike distribution corresponding to the pale-staining insudative zone frequently seen in such lesions. The correlation and localization of CRP immunoreactivity in atherosclerotic lesions presented here suggests a functional role for CRP in the pathogenesis of atherosclerosis. Our results encourage efforts to determine more precisely the physiologic contributions of CRP to the development and exacerbation of atherosclerosis.
This article was published in Arch Pathol Lab Med and referenced in Gynecology & Obstetrics

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