Table 1.

Response of the ex vivo mouse DA to vasoactive cytokines

Marker	Regression Coefficient	P
CXCL-12	−0.027	0.001
IFN-γ	−0.014	0.001
IL-13	−0.022	0.003
IL-15	0.002	0.708
MIP-2	−0.004	0.502
TNF-α	−0.020	0.000

Regression values indicate ductus arteriosus (DA) constriction (negative values) or dilation (positive value) in response to cytokine exposure.

CXCL-12, CXC chemokine ligand 12; MIP-2, macrophage-inflammatory protein 2.