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  • Monitoring of chemical elements and oxidative damage in patients affected by Alzheimer's disease.

Monitoring of chemical elements and oxidative damage in patients affected by Alzheimer's disease.

Annali dell'Istituto superiore di sanita (2005-10-26)
Beatrice Bocca, Giovanni Forte, Francesco Petrucci, Anna Pino, Francesca Marchione, Giuseppe Bomboi, Oreste Senofonte, Franco Giubilei, Alessandro Alimonti
ABSTRACT

The haematic concentration of 26 metals and the oxidative damage in 60 patients (20 males and 40 females) affected by Alzheimer's disease and 44 healthy individuals (33 males and 11 females) were compared. In patients, the following significant (p < or = 0.05) discrepancies were found: i) increment of Ca, Cd, Hg, Mg, Si and Sn, and decrement of Al, Co, Fe and Zn in serum; ii) higher concentrations of Cu, Li, Mn, Sn and Zr and lower of Fe, Hg, Mo in blood; iii) overproduction of oxidant species (SOS) and decrease of the anti-oxidant capacity (SAC) (p < or = 0.001, for both). Variables that, joined, better discriminated between patients and controls resulted to be Si, SOS, SAC, Co, Ca, Al in serum (94% of cases correctly classified) and Cu, Zr, Mo and Fe in blood (90% of cases properly categorized).

MATERIALS
Product Number
Brand
Product Description

Supelco
Glycine, analytical standard, for nitrogen determination according to Kjeldahl method
Supelco
L-Proline, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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Cobalt, Carbon coated magnetic, nanopowder, <50 nm particle size (TEM), ≥99%
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L-Leucine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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Glycine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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L-Aspartic acid, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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L-Valine, Pharmaceutical Secondary Standard; Certified Reference Material
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Aluminum, powder, <5 μm particle size, 99.5% trace metals basis
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Zinc, sputtering target, diam. × thickness 3.00 in. × 0.125 in., 99.995% trace metals basis
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Aluminum, sputtering target, diam. × thickness 3.00 in. × 0.125 in., 99.9995% trace metals basis
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Tin (impurities), manufactured by MBH Analytical Ltd (71X SR0)
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Copper (impurities), manufactured by MBH Analytical Ltd (39X 17868)
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L-Aspartic acid, Pharmaceutical Secondary Standard; Certified Reference Material
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Sorbitol, Pharmaceutical Secondary Standard; Certified Reference Material
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Mannitol, Pharmaceutical Secondary Standard; Certified Reference Material
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Glycine, Pharmaceutical Secondary Standard; Certified Reference Material
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L-Threonine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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L-Tyrosine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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L-Valine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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L-Cystine, certified reference material, TraceCERT®, Manufactured by: Sigma-Aldrich Production GmbH, Switzerland
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Adonitol, ≥99%
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L-Aspartic acid, reagent grade, ≥98% (HPLC)
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L-Proline, BioUltra, ≥99.5% (NT)
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L-Aspartic acid, BioUltra, ≥99.5% (T)
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L-Tyrosine, BioUltra, ≥99.0% (NT)
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trans-4-Hydroxy-L-proline, BioXtra, ≥99.0% (NT)
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Glycine, tested according to Ph. Eur.
Mannitol, European Pharmacopoeia (EP) Reference Standard
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Tin, powder, -100 mesh, 99.99% trace metals basis
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L-Tyrosine, Pharmaceutical Secondary Standard; Certified Reference Material