Table 1.

Effect of pharmacological agents on resting diameters

Branch order	Control	I + L	T + U	I + L + T + U
FA	38 ± 2	32 ± 1*	29 ± 2*	30 ± 2*
1A	30 ± 1	27 ± 2	30 ± 2	25 ± 2*
2A	19 ± 1	15 ± 1	19 ± 2	19 ± 2
3A	9 ± 1	7 ± 1	10 ± 1	9 ± 1

Resting ID (μm) decreased in FA during I + L, T + U, I + L + T + U and in 1A during I + L + T + U. Resting ID of 2A and 3A were not significantly altered under the respective conditions.

I, indomethacin (10⁻⁵ m); L, l‐NAME (10⁻⁴ m); T, TRAM 34 (10⁻⁵ m); U, UCL 1684 (10⁻⁶ m). ^* P < 0.05 versus control (n = 11 for control, n = 6 for I + L, n = 5 for T + U, n = 10 for I + L + T + U).