Figure 2From: Quinolinic acid toxicity on oligodendroglial cells: relevance for multiple sclerosis and therapeutic strategies Quinolinic acid (QUIN) time-course study. N19 (top row) and N20.1 cells (bottom row) treated with specified concentration of QUIN for 0, 30, 60 and 90Â minutes. Treated cells were analyzed by immunohistochemistry for QUIN uptake.Back to article page