. Author manuscript; available in PMC: 2016 Apr 1.

Published in final edited form as: Toxicol Lett. 2014 Aug 2;230(1):57–61. doi: 10.1016/j.toxlet.2014.07.029

TABLE 1.

Direct assay measurement of substrate hydrolysis by human serum PON1. Activities are expressed as micromoles of substrate hydrolyzed per minute per liter of serum, means ± SD, n=10. [Data on paraoxon and diazoxon were calculated for this subset of subjects only, but were collected for and methods were described in the Coombes et al. (2011) study.] Values within a substrate with the same superscript letter are not statistically different (p≤0.05).

Substrate	High RR	Low RR	High QQ	Low QQ
Chlorpyrifos-oxon	11,023 ± 722^A	9,467 ± 798^B	8,809 ± 672^B	6,030 ± 1015^C
Paraoxon	720 ± 40^A	530 ± 53^B	259 ± 53^C	139 ± 21^D
Diazoxon	9,255 ± 1,040^A	5,699 ± 669^B	13,250 ± 381^C	6,892 ± 620^D