(MBF Biosciences) was used to quantify nitrotyrosine, cleaved caspase 3, and
NeuN immuno-reactive cells in the hippocampal dentate gyrus region. For all
measurements, six sections were obtained to cover the entire impact region,
−1.60 mm to −6.3 mm from Bregma, corresponding to every 12 serial sections for
each brain. For the stereological quantitation, we used a grid spacing of 75 μm
× 75 μm in the x and y-axis and guard zones of 2 μm at the top and bottom of
each section where immuno-positive cell bodies were counted. The total number of
nitrotyrosine, cleaved caspase 3, and NeuN-positive cells in the volume of
interest were automatically determined and expressed as
cells/mm3.
Image J software (NIH) was used to measure immunoblot protein band signal
intensity, the internal length, and the central width of each endothelial
nucleus.