Impact of Aging on Urinary Excretion of Iron and Zinc
نویسندگان
چکیده
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.
منابع مشابه
Zinc concentration in patients with iron overload receiving oral iron chelator 1,2-dimethyl-3-hydroxypyrid-4-one or desferrioxamine.
AIMS To determine the changes in serum zinc concentration and the extent of urinary zinc excretion in patients with iron overload receiving the oral iron chelator 1,2-dimethyl-3-hydroxypyrid-4-one (L1) or desferrioxamine (DFX), and to correlate these results with blood glucose concentration. METHODS Serum zinc and ferritin concentrations, urinary zinc and iron excretion were regularly assayed...
متن کاملThe Comparison of Efficacy of Original Brand Deferoxamine with Generic Iranian Made Deferoxamine in Urinary Iron Excretion in Patients with Thalassemia Major
Background: Deferoxamine mesylate is still the conventional and well-known iron chelator for patients with thalassemia major. However, due to some marketing issues the well-known original brand, Desferal®, produced by Novartis Pharmaceuticals Company is not as available as before. The generic brands of Deferoxamine have been introduced in many parts of the world including Iran; however, they ar...
متن کاملEffect of deferiprone on urinary zinc excretion in multiply transfused children with thalassemia major.
A prospective multi-centric study was conducted to determine if iron-chelating agent deferiprone also chelates zinc. Twenty four-hour urinary zinc levels were compared in multiply transfused children with thalassemia major not receiving any chelation therapy (Group A, n = 28), those receiving deferiprone (Group B, n = 30) and age and sex-matched controls of subjects in Group B (Group C, n = 29)...
متن کاملCorrelation between Mineral Intake and Urinary Excretion in Free-Living Japanese Young Women
To clarify whether the urinary excretion of calcium, magnesium, phosphorus, iron, zinc, copper, manganese, selenium and molybdenum can be used as an index of their intake, the association between urinary excretion and intake in free-living individuals was examined. A total of 102 healthy free-living female university dietetics students aged 18 33 years voluntarily participated in this study, of...
متن کاملCombined effects of steroids, ethanol and protein deficiency on tissue content and urinary and faecal excretion of zinc, copper and iron.
This study was performed in order to determine the relative and combined effects of ethanol, a low protein diet and steroid treatment on bone, muscle, liver, and urinary and faecal excretion of zinc, copper and iron in 64 rats divided into eight groups treated following the Lieber-DeCarli liquid diet technique, with and without dexamethasone, 1 mg/l. Steroids showed a lack of effect on liver zi...
متن کامل