Table 1. The selected NADPH-related redox biomarkers and the proposed protocols.

NADPH-related redox biomarker	Proposed protocol
NADPH	Wagner and Scott [20]
NADH	Wagner and Scott [20]
NAD+ kinase	Outten and Culotta [21]; Pollak et al. [22]
NADPH oxidase	Someya et al. [23]; Hua et al. [24]
Peroxiredoxin	Nelson and Parsonage [25]
Thioredoxin	Kumar and Holmgren [26]
TrxR	Kumar and Holmgren [26]
NOS	Abdelkawy and Salem [27]