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Hair trace elementary profiles in aging rodents and primates: links to altered cell homeodynamics and disease

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Abstract

Aging is associated with an increased incidence of pathological conditions such as neurodegeneration, cardiovascular and renal disease, and cancer. These conditions are believed to be linked to a disruption in cell homeodynamics, which is regulated by essential trace elements. In this study we used hair elementary analysis by inductively coupled plasma mass spectrometry (ICPMS) to examine age-related profiles of 47 elements in both rats and common marmoset monkeys. Hair was collected from young adult (6 months) and aged (18 months) Long–Evans male rats, and young adult (2 years), middle-aged (4 years) and aged (>8 years) marmosets. The results revealed that aging reduces content levels of cobalt, potassium and selenium while content levels of aluminium, arsenic, boron, mercury, molybdenum, and titanium were elevated in aged rats. Similarly, aged marmosets showed reduced levels of cobalt and elevated levels of aluminium. Case studies in aged rats revealed that myocardial infarction was associated with elevated levels of sodium, potassium and cadmium and reduced zinc, while renal failure was linked to elevated content of potassium, chloride and boron and reduced contents of manganese. Carcinoma was linked to elevated arsenic and reduced selenium levels. These findings indicate that hair elementary profiles in healthy aging and age-related diseases reflect altered cell and organ metabolic functions. Cobalt and aluminium in particular may serve as biomarkers of aging in animal models. Thus, elementary deposition in hair may have predictive and diagnostic value in age-related pathological conditions, including cardiovascular and kidney disease and cancer.

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Acknowledgments

The authors thank Cornelia Heckmann for assistance with the experiments. The authors acknowledge support by the Alberta Innovates-Health Solutions Interdisciplinary Team Grant No. 200700595 “Preterm Birth and Healthy Outcomes”, the Natural Sciences and Engineering Research Council of Canada, and the Canadian Institutes of Health Research No. 102652 (GAM). GAM is an AI-HS Alberta Heritage Medical Senior Scholar.

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Correspondence to Gerlinde A. Metz.

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Ambeskovic, M., Fuchs, E., Beaumier, P. et al. Hair trace elementary profiles in aging rodents and primates: links to altered cell homeodynamics and disease. Biogerontology 14, 557–567 (2013). https://doi.org/10.1007/s10522-013-9464-1

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  • DOI: https://doi.org/10.1007/s10522-013-9464-1

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