Table 1. The effect of EP on the WT and WA of the pulmonary arteries.

Groups	Small pulmonary artery
	Diameter	%WT	%WA
Model group	35.97 ± 9.37	63.13 ± 6.94	85.98 ± 45.96
Therapy group	35.14 ± 8.13	35.51 ± 5.95*	58.09 ± 8.16*
Control group	35.81 ± 8.38	63.46 ± 5.43	86.39 ± 4.39

Compared with model group: ^* P <0.01

EP: ethyl pyruvate; WA: wall area; WT: wall thickness