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Effect of adenosine diphosphate (ADP; 10-5 M, 10-4 M) on CO production by piglet astrocytes in the absence and in the presence of CrMP (2 × 10-5 M). Mean ± SEM relative to control. N = 6 experiments. *P < 0.05 compared with no ADP.† = P < 0.05 compared to before CrMP.
