Clinical Study

Immune Biomarker Response Depends on Choice of Experimental Pain Stimulus in Healthy Adults: A Preliminary Study

Table 2

Bivariate correlations between cortisol, catastrophizing and pain ratings with immune biomarker concentrations changes (post-pre) after cold pain (ΔCPT) and hot pain (ΔFHP) stimulation.

Cortisol Cortisol PCSPCSPPR£PPR
ΔCPT*ΔFHP*ΔCPT ΔFHPΔCPT
ΔFHP
r (P-value)r (P-value)r (P-value)r (P-value)r (P-value)r (P-value)

IL-1β−0.57 (0.140)0.31 (0.455)−0.64 (0.087)0.22 (0.601)−0.35 (0.395)0.64 (0.087)
TNF-α−0.38 (0.353)0.20 (0.635)−0.29 (0.486)0.18 (0.670)−0.46 (0.251)0.26 (0.534)
IFN-γ−0.34 (0.410)0.24 (0.567)−0.18 (0.670)0.15 (0.723)−0.25 (0.550)0.63 (0.094)
IL-8−0.70 (0.053)0.17 (0.687)−0.52 (0.187)0.22 (0.601)−0.50 (0.207)0.64 (0.087)
IL-12−0.46 (0.251)0.25 (0.550)−0.35 (0.395)0.16 (0.705)−0.41 (0.313)0.65 (0.081)
MCP-1−0.58 (0.132)0.02 (0.963)−0.36 (0.381)0.33 (0.425)−0.49 (0.218)0.85 (0.008)
αMSH0.05 (0.906)0.20 (0.635)0.08 (0.851)0.00 (0.998)0.17 (0.687)0.13 (0.759)
IL-60.64 (0.087)0.50 (0.207)0.44 (0.275)0.16 (0.705)0.55 (0.158)0.65 (0.081)
IL-100.30 (0.470)−0.36 (0.381)0.22 (0.601)−0.49 (0.218)0.35 (0.395)−0.64 (0.087)

*Positive values indicate an increase in biomarker concentrations, while negative values represent a decrease in biomarker concentrations.
PCS = Pain Catastrophizing Scale scores.
£PPR = Peak Pain Ratings.