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Quantitative real time RT-PCR expression of iNOS, nNOS and eNOS in the cerebellar cortex of CO-exposed rats. Fig. (a) iNOS mRNA was significantly up-regulated (asterisk) in group B, followed by groups A and C, group D shows the normal expression. (b) nNOS and (c) eNOS mRNA in groups A, B and C, showed no significant changes with respect to control group-D. Results represent standard error of the mean from 3 experiments for each group.
