. 2020 May 14;113(12):870–875. doi: 10.1093/qjmed/hcaa164

Table 2.

Proinflammatory mediators before and after hydrogen inhalation

		Before inhalation	After inhalation	P value
COPD
Peripheral blood (pg/mL)	MCP1	564.70 + 164.67	451.51 + 166.39	0.019^*
Exhaled breath condensate (pg/mL)	sCD40L	1.07 + 0.18	1.16 + 0.11	0.031^*
Exhaled breath condensate (pg/mL)	IL-4	0.80 + 0.15	0.64 + 0.07	0.025^*
Asthma
Peripheral blood (pg/mL)	MCP1	386.39 + 154.72	332.76 + 189.07	0.033^*
Peripheral blood (pg/mL)	IL-8	5.25 + 2.10	4.49 + 2.79	0.023^*
Exhaled breath condensate (pg/mL)	IL-6	0.06 + 0.01	0.05 + 0.01	0.007^*

P values were obtained by paired samples t test after taking natural logarithms.

MCP1: monocyte chemoattractant protein-1; sCD40L: soluble cluster of differentiation-40 ligand; IL-4: interleukin-4; IL-8: interleukin-8; IL-6: interleukin-6.

Values indicate significant differences (P < 0.05).