Table 1.

IC50 values calculated additive concentrations and osmolalities required to achieve 50% drop in viability for THP-1 cells or fibroblasts for each of the salts; raw data displayed in Fig. 1.

Additives	THP-1 cells		Fibroblast
	[Salt], mM	mOsm/kg	[Salt], mM	mOsm/kg
Arg·Glu	141.1	449.1	119.1	417.4
NaCl	99.6	456.4	114.7	482.9
Arg·HCl	94.3	360.6	128.0	400.7
NaGlu	158.6	474.3	171.1	489.7