Year: 2014
Type: article
Study design: Observational Study
Abstract: PROJECT: Data about the influence of aging on urinary excretion of iron and zinc are scarce. The objective of the present study was to compare the concentration of zinc and iron in the urine of healthy elderly subjects and younger adults. PROCEDURE: Seven healthy elderly subjects and seven younger adults were selected and submitted to biochemical, clinical, and nutritional tests. After a fasting period, 12-hour urine was collected for the determination of iron and zinc concentrations by graphite furnace atomic absorption spectrophotometry. RESULTS: Urinary zinc and iron concentrations of the elderly subjects were not significantly different from that of younger adults. However, the total zinc and iron urinary clearance in 24 hours for the elderly was significantly higher compared with that of younger adults. CONCLUSION: There is an increase in urinary iron and zinc clearance with aging. The values reported in this manuscript may be used as references in future studies.
Source: Nutrition and Metabolic Insights
DOI: 10.4137/nmi.s12977
Institution: Universidade de São Paulo
Language: English
Topic: Trace Elements in Health
Subfield: Nutrition and Dietetics
Field: Nursing
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,650
OpenAlex ID: W1986759104