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The subunit protein of the neurofibrillary tangle, the core protein of the neuritic plaque, and the amyloid of the cerebrovasculature in Alzheimer disease and normal aging is a unique 42-amino acid protein (amyloid beta-protein), suggesting a common origin for these pathological entities. However, the expression of the amyloid precursor protein mRNA (APP(More)
A total of seven different isolates of Hantaviruses from five mammalian species and six geographical areas were examined by a double sandwich ELISA with biotin-avidin amplification system. Three serotypes were recognized by comparing antigen titres to homologous and heterologous antibody and blocking antibody titres to homologous and heterologous antigens.(More)
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