Figure 5.

Heart rate and diastolic blood pressure restoration in αβγ^−/− mice. (A) Example trace showing heart rate after activation of the depressor reflex in aged wild-type and αβγ^−/− mice. (B) Example trace showing diastolic blood pressure after activation of the pressor reflex in aged wild-type and αβγ^−/− mice. (C) Combined data showing maximum change (overshoot) in heart rate above baseline after activation of the depressor reflex in aged, young wild-type and αβγ^−/− mice). (D) Combined data showing maximum change in diastolic blood pressure above baseline after activation of the pressor reflex in aged, young wild-type and αβγ^−/− mice. Means ± S.E.M were compared with a Mann–Whitney U rank test.