Group (n = 20)

Max Contract

Control normal

2.15 ± 0.15

L-NAME untreated hypertensive gp.

4.34 ± 0.22^ac

Sitaglipten treated gp.

2.45 ± 0.17^abc

Captopril treated gp.

2.37 ± 0.32^abc

Sitaglipten and captopril treated gp.

1.98 ± 0.16^b

F (p)

201.552^* (<0.001)