Table 1.

Characteristics of coronary arterioles of dogs

	Low Salt (n = 7/14)	Low Salt + Losartan (n = 2/8)	Normal Salt (n = 5/10)
AD, μm	83.7 ± 5.9	102.1 ± 8.7	80.5 ± 4.7
PD, μm	133.7 ± 5.2	158.1 ± 14.4	130.3 ± 4.7
Basal tone, %PD	62.9 ± 4.4	64.5 ± 3.6	61.8 ± 2.7
MAP, mmHg	97.6 ± 4.3*		110.8 ± 3.1

Values are means ± SE; n, no. of dogs/no. of isolated arterioles. AD, active diameter; PD, passive diameter; MAP, mean aortic pressure.

^*Significant difference from dogs fed a normal-salt diet.