Table 4

Ferritin concentrations in Caco-2 cells exposed to samples of maize only and maize-based diet digests; and Fe concentrations in samples of maize only and maize-based diet digests1
Tested sample Caco-2 Cell Ferritin2, ng/mg of total protein Fe concentration3, μg/g sample
High Fe maize only 22.51±0.9c 20.9 ±0.2c
Low Fe maize only 13.40 ±0.6d 20.0 ±0.9c
"High + Fe" diet 74.36 ±1.6a 65.3 ±0.9a
"Low + Fe" diet 56.89 ±1.1b 66.1 ±2.4a
"High" diet 6.55 ±0.5e 24.5 ±1.0b
"Low" Diet 1.31 ±0.4f 23.6 ±0.2bc

1Values are means ± SEM, n = 6.

a,b,c,d,e,f Within a column (ferritin or Fe concentrations), means without a common letter differ, P < 0.05.

2Caco-2 bioassay procedures and preparation of the digested samples are described in the materials and methods section.

3Dietary iron concentrations analysis is described in the materials and methods section.

Tako et al.

Tako et al. Nutrition Journal 2013 12:3   doi:10.1186/1475-2891-12-3

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