Figure 1.

True and false color photomicrographs of human neurons (A-C). Control culture after trypan blue exclusion assay in true color (A) and false color (B). Cultures exposed to HIV proteins 40 nM Tat plus 32.5 pM gp120 and 1.6 μM cocaine show synergistic toxicity trypan blue exclusion assay in true color (C) and false color (D).

Kendall et al. BMC Neuroscience 2005 6:40   doi:10.1186/1471-2202-6-40
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