Improved Biocompatibility of Novel Biodegradable Scaffold Composed of Poly-L-lactic Acid and Amorphous Calcium Phosphate Nanoparticles in Porcine Coronary Artery

Table 2

Serum levels of NO and VEGF between the period before operation and 28 days after implantation.

Parameters	PLLA group		PLLA/ACP group		values
	Before operation	28 days	Before operation	28 days
NO (mol/L)	171.85 ± 10.90	79.55 ± 16.55	176.15 ± 20.63	129.96 ± 9.52	0.017
VEGF (pg/mL)	187.81 ± 69.45	222.04 ± 55.16	205.00 ± 57.88	309.86 ± 49.37	0.011

NO: nitric oxide; VEGF: vascular endothelial growth factor.
values are for comparison between the PLLA group and the PLLA/ACP group at 28 days after implantation.