Table 3. Laboratory blood analysis (mean ± SE).

	Heart failure n = 15	Healthy n = 10
NT-proBNP, ng/L	5286 ± 893*	251 ± 85
Hemoglobin, g/L	121 ± 3.6	130 ± 1.5
Sodium, mmol/L	141 ± 1.1	141 ± 0.6
Potassium, mmol/L	4.0 ± 0.1	4.2 ± 0.1
Creatinine, μmol/L	132.2 ± 12.1#	78.8 ± 4.1
Uric acid, μmol/L	579 ± 40#	281 ± 21
CRP, mg/L	15.0 ± 3.7#	1.4 ± 0.3
IL-6, ng/L	28.2 ±10.6#	3.6 ± 0.5
IL-2r, kU/L	967 ± 131#	406 ± 39
eGFR, mL/min	42.1 ± 4.6*	64.8 ± 4.2

CRP: sensitive C reactive protein; eGFR: estimated glomeruli filtration rate (Cockcroft-Gaults adults); IL: interleukin; IL-2r: soluble IL 2 receptor; NT-proBNP: nerve terminal-pro-brain natriuretic peptide. Statistical analysis was performed using the non-parametric Mann-Whitney's test. *P < 0.05, ^#P < 0.01 compared to healthy subjects.