Research Article

Amyloidosis, Inflammation, and Oxidative Stress in the Heart of an Alkaptonuric Patient

Figure 5

Congo Red staining of AKU aortic valve amyloid deposits. Different sections of the valve are shown. Desquamation of endothelial coverage and tissue destruction were evident. Valve tissue was ever stained red (“congophilic”). The pigmented areas (arrows) were also birefringent, indicating overlapping of ochronosis and amyloid. Magnification 40x.
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