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. 2020 Apr 27;147(9):1008–1018. doi: 10.1017/S0031182020000657

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© The Author(s) 2020

This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 5. — Reductase activities in crude extracts of G. lamblia trophozoites. The assays were performed as described in ‘Materials and methods’ section using either NADH (white bars) or NADPH (black bars) as cofactors. A, NAD(P)H oxidase; B, quinone reductase with menadione as a substrate; C, nitroreductase with 7-nitrocoumarin as a substrate. Mean values ± one standard deviation for three independent assays are given. Values superscribed by different letters are significantly different (two-sided t-tests; P < 0.05).