Table 2.

Correlation analysis of the study population

	Compared parameter (after stimulation in the same conditions)
Parameter	Stimulation type	SOD2	SIRT1	HSP70intr	HSP70surf	TNF	IFN-γ	Carbonyl groups
SIRT1	none	ns
	IL-2	0.222
	LPS	ns
	PMA/ion	0.231
HSP70intr	none	ns	0.967
	IL-2	0.235	0.957
	LPS	ns	0.975
	PMA/ion	0.315	0.926
HSP70surf	none	0.694	ns	ns
	IL-2	0.825	0.232	0.287
	LPS	0.747	ns	ns
	PMA/ion	0.652	ns	ns
TNF	none	ns	0.406	0.445	ns
	IL-2	ns	0.313	0.354	0.375
	LPS	ns	0.390	0.403	0.276
	PMA/ion	0.461	0.435	0.421	0.446
IFN-γ	none	ns	0.415	0.464	ns	0.361
	IL-2	ns	0.424	0.451	ns	0.301
	LPS	0.257	0.371	0.421	0.369	0.368
	PMA/ion	ns	ns	ns	ns	ns
Carbonyl groups	none	ns	ns	−0.315	ns	ns	ns
	IL-2	ns	ns	ns	ns	ns	ns
	LPS	ns	ns	ns	ns	ns	− 0.346
	PMA/ion	−0.313	ns	−0.33	ns	ns	ns
8-Isoprostanes	none	ns	ns	−0.407	ns	−0.416	ns	ns
	IL-2	ns	ns	ns	ns	−0.437	ns	ns
	LPS	ns	−0.438	ns	ns	ns	ns	ns
	PMA/ion	ns	ns	ns	ns	ns	ns	ns

All values are presented as statistically significant (p < 0.05) Spearman’s correlation coefficients (R). ‘ns’ denotes statistically not significant. ‘HSP70^intr’ intracellular HSP70, ‘HSP70^surf’ surface HSP70, ‘PMA/ion’ PMA + ionomycin