Table 1.

Dilatation of the rat arterial mesenteric bed territory induced by perfusion with ATP or selective purinergic agonists.

	Controls	STZ-treated rats
Vasodilatation (%, x ± SEM)
100 μM ATP	63.4 ± 4.3 (n = 5)	60.6 ± 9.1 (n = 4)
100 nM 2-MeSADP	85.4 ± 6.1 (n = 5)	87.1 ± 3.6 (n = 4)
1 μM UTP	22.1 ± 6.7 (n = 5)	5.5 ± 5.5 (n = 3)
30 μM BzATP	–89.7 ± 14.4 (n = 5)	–114.5 ± 9.2 (n = 5)

Negative vasodilation indicates vasocontraction induced by BzATP.