AZT treatment decreases axial force during pressure–diameter tests. Axial force was also measured during the pressure–diameter mechanical tests. Analysis of the axial force revealed that the AZT treated mice had significantly lower forces at pressures from 10–80 mmHg for the subphysiological and physiological stretch and from 10–70 mmHg for the superphysiological stretch. (■ is physiological stretch, ▲ is subphysiological stretch, and ● is superphysiological stretch, * indicates p < 0.05, n = 8, and data is mean ± SEM). No differences were found in the carotids.