Table 2.

In vitro VEC biological features and correlation with in vivo hemodynamic parameters.

VEC biological features	Hemodynamic parameters
	Resistance index (RI)	Reflux time (RT)
	R (P value)*	R (P value)*
Cell proliferation index	n.s.	−0.6 (0.027)
Cell migration index	n.s.	n.s.
Expression levels of ICAM-1	−0.4 (0.002)	0.4 (0.007)
Expression levels of VCAM-1	n.s.	n.s.
Expression levels of OPG	n.s.	0.5 (0.013)
Expression levels of TRAIL	0.4 (0.048)	n.s.

*Correlation coefficients were determined by Spearman's analysis; n.s.: not statistically significant.