Studies in human mineral metabolism

Walker, Alexander; Fox, F. W.; Irving, J. T.

doi:10.1042/bj0420452

Cited by 145 publications

(8 citation statements)

References 11 publications

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“…It may be argued that these results only apply to short-term balances and that normal people can adapt to restricted calcium intake by lowering their urinary calcium and possibly by improving their calcium absorption. This is certainly the view of Hegsted, Moscoso & Collazos (1952) and is supported by the work of Walker, Fox & Irving (1948). However, the fact that some people can adapt to calcium restriction does not mean that everyone can do so.…”

Section: Calcium Requirement Calcium Intakementioning

confidence: 77%

Osteoporosis and calcium deficiency

Nordin

1960

Proc. Nutr. Soc.

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Section: Calcium Requirement Calcium Intakementioning

confidence: 77%

Osteoporosis and calcium deficiency

Nordin

1960

Proc. Nutr. Soc.

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“…McCance & Widdowson (1935) observed that human subjects on a highphytate, low-calcium diet develop a negative calcium balance, and this observation provided the basis for the present practice of adding calcium carbonate to high-extraction flours. If phytate is hydrolysed by phytase then the immobilization of calcium will be decreased, and the interesting observation of Walker, Irving & Fox (1948), that in some subjects on high-phytate, low-calcium diets there is a gradual adaptation so that calcium balance is eventually restored, may perhaps be explained by an increased phytase activity of the intestinal flora.…”

mentioning

confidence: 99%

The phytase of wheat

Peers

1953

Biochemical Journal

192

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“…In human faecal studies, the dietary phytate degradation rate varied between 50 and 90% (Joung et al, 2007;McCance & Widdowson, 1935;Walker et al, 1948). In a human trial with both young and elderly women, it was also reported that the diet with high phytate content could enhance phytate degradation (Joung et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Is it true aleurone in the thick aleurone rice mutant?

Howitt

et al. 2021

Preprint

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Background Diet-related non communicable diseases (NCDs) impose a heavy burden on human health worldwide. Rice is a good target for diet-related disease prevention strategies because it is widely consumed. Liu et al. demonstrated that increasing the number of cell layers and thickness of putative aleurone in ta2-1 (thick aleurone 2-1) mutant rice enhances simultaneously the content of multiple micronutrients. However, the increases of aleurone-associated nutrients were not proportional to the increases in the aleurone thickness. Results In this study, first, cytohistological analyses and transmission electron microscopy demonstrated that the multilayer in ta2-1 exhibited aleurone cell structural features. Second, we detected an increase in insoluble fibre and insoluble bound-phenolic compounds, a shift in aleurone-specific NNSP (neutral non-starch polysaccharide) profile, enhancement of phytate and minerals such as iron, zinc, potassium, magnesium, sulphur, and manganese, enrichment of triacylglycerol and phosphatidylcholine but slight reduction in free fatty acid, and an increase in oleic fatty acid composition. Conclusion These findings support our hypothesis that the expanded aleurone-like layers in ta2-1 maintained the distinctive aleurone features and composition associated with true aleurone. We provide perspectives to achieve even greater filling of this expanded micronutrient sink to alleviate the burden of NCDs.

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Studies in human mineral metabolism

Cited by 145 publications

References 11 publications

Osteoporosis and calcium deficiency

Osteoporosis and calcium deficiency

The phytase of wheat

Is it true aleurone in the thick aleurone rice mutant?

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