 simultaneous chronic administration of GA (0 and 00 μg kg^−0^ per min). Data were expressed as mean±s.e.m. from 0--0 independent experiments. ^\*\*^*P*\<0.00 *vs.* control. ^\#\#^*P*\<0.00 *vs.* vehicle. A full color version of this figure is available at the *Hypertension Research* journal online.](hr000000f0){#fig0}  ![Effect of GA on impaired 