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Panel a, elastase treatment (0.05 U/ml; 5 mins) does not cause lengthening of cerebral arteries (n = 8) despite causing lengthening of cremaster arterioles (n = 8). Panel b, elastase treatment causes an upward and leftward shift in the passive pressure – diameter relationship for cerebral vessels showing a decrease in distensibility (n = 6). Results are shown as mean ± SEM. * P < 0.05.
