Immunohistoblot analysis on whole human hemispheres from normal and Alzheimer diseased brains

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We demonstrate the feasibility and usefulness of the histoblot immunostaining of cryosections of whole hemispheres of healthy and Alzheimer diseased (AD) human brains by localizing a neuron-specific marker, the anti-neuronal nuclei (NeuN) antigen. As expected, cortical NeuN-immunopositive regions were generally thinner and lighter in the AD brains than in the controls. The advantages of using whole hemisphere histoblots: (1) they provide a low-resolution overview/outline of the antigen distribution in a large surface area, (2) large, thick, and/or unfixed tissue sections from post-mortem samples (perhaps of inferior tissue quality) can be compared, and (3) subsequent immunohistochemistry can be performed on the tissue sections used for the histoblots.

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