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  • Title: Scalp hair as an indicator of aluminium exposure: comparison to bone and plasma.
    Author: Wilhelm M, Passlick J, Busch T, Szydlik M, Ohnesorge FK.
    Journal: Hum Toxicol; 1989 Jan; 8(1):5-9. PubMed ID: 2785480.
    Abstract:
    1. Aluminium concentrations were measured in hair, plasma and bone samples from different groups of chronic renal insufficient patients and from a control group (75 healthy volunteers plus 21 deceased subjects). A cross-sectional study with 40 haemodialysis patients and two longitudinal studies were undertaken, the first comprising of 12 home haemodialysis patients and the second 16 patients undergoing continuous ambulatory peritoneal dialysis (CAPD). 2. Before introduction of water treatment by reverse osmosis, the hair aluminium levels of home haemodialysis patients were elevated compared to controls. Aluminium in the hair of all other groups were within the normal range. Hair aluminium levels were not related to the daily aluminium intake, nor to the cumulative aluminium intake, nor to bone and plasma aluminium concentrations. 3. Plasma aluminium concentrations in all patients were higher than in the controls. Dialysis without reverse osmosis water treatment increased aluminium plasma levels. After installation of reverse osmosis units there was a decrease in the aluminium concentrations in plasma. In CAPD patients insignificant increases in the aluminium levels in plasma were observed. When low contaminated dialysis fluid was available the plasma aluminium concentrations returned to the initial level. 4. Aluminium concentrations in bone were increased in renal insufficient patients compared with controls. Aluminium bone content increased with increasing cumulative aluminium intake by phosphate binding therapy. 5. Hair analysis is of very limited value for the diagnosis of aluminium exposure. Bone analysis is suitable for the assessment of the individual body burden.
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