Increased absorption of aluminium from a normal dietary intake in dementia

Roberts, N. B.; Clough, Alexander J.; Bellia, J.P.; Kim, J.Y

doi:10.1016/s0162-0134(97)10015-0

Cited by 67 publications

(54 citation statements)

References 13 publications

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“…L'essentiel est de trouver un bon compromis pour des éléments comme le silicium dont une forte teneur garantit une bonne mise en forme en fonderie, mais une mauvaise résistance en corrosion. On privilégiera donc les alliages issus du milieu alimentaire (canette) et de celui de plaque d'imprimerie (Roberts et al, 1998) qui peuvent être mélangés avec d'autres, issus du milieu automobile (culasses, carters) ou de celui issu du bâtiment (cadre de fenêtre). Ces résultats sont en bon accord avec d'autres travaux de recherche (Caceres et al, 1999 ;Dinnis et al, 2006 ;Bartolomé et al, 2006 ).…”

Section: Discussionunclassified

Caractérisations chimiques des ustensiles de cuisine artisanale en aluminium fabriqués au Burkina Faso : cas de Ouagadougou

Sawadogo¹,

Nisol²,

Bougouma³

et al. 2015

Int. J. Bio. Chem. Sci

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RÉSUMÉDans le cadre de la valorisation des matériaux d'origine artisanale du Burkina Faso, deux (02) types d'échantillons d'ustensiles de cuisine (marmites artisanales) en aluminium prélevés dans les différentes zones de la ville de Ouagadougou, ont subi une série d'analyses chimiques. L'artisanat pose le problème de la qualité des produits finis du pays surtout quand on sait qu'ils sont utilisés pour la cuisine de tous les jours. Ainsi, aucun de ces alliages ne devrait être utilisé pour la fabrication d'ustensiles de cuisine, si nous nous référons à la norme française EN 601 en juillet 2004. Ce travail est une contribution à la caractérisation physique et chimique des marmites artisanales au centre du Burkina Faso. L'analyse à la fluorescence X (XRF) indique que la majeure partie des échantillons étudiés, contiennent environ 87,3% d'aluminium. La diffraction aux rayons X (DRX), la spectrométrie de photoélectrons (XPS), la microscopie optique (MO) montrent que les éléments constitutifs essentiels des échantillons d'ustensiles de cuisine sont : Aluminium, Silicium, cuivre, Magnésium et de Zinc. Enfin, une mesure par colorimétrie permet de mettre en évidence la présence de l'aluminium en solution.

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Section: Discussionunclassified

Caractérisations chimiques des ustensiles de cuisine artisanale en aluminium fabriqués au Burkina Faso : cas de Ouagadougou

Sawadogo¹,

Nisol²,

Bougouma³

et al. 2015

Int. J. Bio. Chem. Sci

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“…Silicon in urine was measured by direct current plasma emission spectrometry (Thermo Electron Products, Warrington, UK) as reported previously [14]. Both techniques gave good precision for serum and or urine analysis of from 3À10% for concentrations of aluminum between 0.1À5.0 lmol/L and silicon 5À500 lmol/L [3,14]. varying amounts of aluminum hydroxide in a volume of 5 mL.…”

Section: Assessment Of Aluminum and Silicon In Serum And Urinementioning

confidence: 95%

“…The collection tubes were shown to be free of extraneous aluminum, that is, at less than 0.05 lmol/L. Analyses of aluminum in serum, urine, and various test solutions and serum silicon were performed by graphite furnace atomic absorbance spectrometry with Zeeman background correction (model Z-5700, Hitachi Instruments, Japan ) [3]. Silicon in urine was measured by direct current plasma emission spectrometry (Thermo Electron Products, Warrington, UK) as reported previously [14].…”

Section: Assessment Of Aluminum and Silicon In Serum And Urinementioning

confidence: 99%

“…This is because the actual amounts of Al absorbed are small, the changes in serum aluminum are also likely to be small and these in turn are related to problems of sampling time relative to the absorption pro®le. However, urine, which is a ®ltrate of human plasma collected over at least several hours, will contain relatively more aluminum and changes are therefore more likely to be observed in this medium [3]. This is why both urine and serum analysis are required for any study on aluminum intake i.e.…”

Section: Introductionmentioning

confidence: 99%

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Further studies on the interrelationship of aluminum and silicon in patients receiving aluminum hydroxide therapy for dyspepsia and factors that relate to the solubilization of aluminum

Roberts

Zhu

Kim

et al. 2002

J Trace Elements Exper Med

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It is known that the intake of aluminum-containing antacids is related to increases in serum concentration and the urinary output of aluminum, and that silicon intake as orthosilicic acid may facilitate renal excretion of aluminum. However, how either the amount of antacid ingested or the therapy period affects these and the subsequent interrelationship of aluminum and silicon has not been fully investigated. In addition, factors that affect the solubility of aluminum hydroxide need further clarification. A study of 122 patients with dyspepsia who were receiving aluminum hydroxide therapy and 144 healthy controls confirmed that, in the patients, serum and urine aluminum (0.39 0.21 and 2.02 2.0 lmol/L, mean 1 SD, respectively) were slightly but significantly increased (P < 0.05) compared with the controls (0.21 0.13 and 1.55 0.89). However, there was no evidence of any association between these changes and the amount ingested or the therapy period. Urine silicon although increased in the patients (716 488 lmol/L) compared with the controls (472 333 lmol/L) was not aected by the amount or time of therapy but was just signi®cantly correlated with the urine (r = +0.19, P = 0.03) and serum aluminum (r = +0.13, P = 0.05) in the combined groups. Thus, the renal excretion of silicon and aluminum may in some part be interdependent. Studies into factors that aect the solubility of aluminum from aluminum hydroxide indicated that at a pH > 3.5 the solubility of aluminum reduced signi®cantly. However, addition of 5 or 20 mmol/L phosphate had no signi®cant eect. With a synthetic food, solubility of aluminum was markedly increased even at the elevated pH 5.5. Thus, the pH, as well as the chemical complexity of the mixture, is an important factor in aecting solubilization of aluminum. The potential of increased exposure to aluminum could be dependent on co-ingestion with food components and may explain the increased risk to renal failure patients on aluminum-containing phosphate binders. J. Trace Elem. Exp. Med. 15:9À19,

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“…Aluminum is recognized as an important toxic substance [1][2][3][4][5] causing considerable morbidity and mortality in humans. Dialysis dementia, renal osteodystrophy and Alzheimer's disease have been associated with exposure in medical treatment and excess intake of pharmaceuticals containing aluminum, which indicates the importance for internal aluminum monitoring.…”

Section: Introductionmentioning

confidence: 99%

Spectrophotometric Determination of Aluminum with m-Carboxyphenylfluorone, a Novel Chemical Probe, and Its Application

et al. 2005

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A highly spectrophotometric method for the determination of aluminum was developed. This method used the color reaction between m-carboxyphenylfluorone (MCPF) as a novel chemical probe and aluminum in the presence of a surfactant, poly(N-vinylpyrrolidone) (PVP, K-90) (0.03 -1.40 µg of aluminum in a final volume of 10 ml at 561 nm). The proposed method showed excellent sensitivity (molar absorptibity of 1.70 × 10 5 l mol -1 cm -1 ) and reproducibility (within-day precision: RSD = 0.35% n = 6, between-day precision: RSD = 0.44% n = 6). Linearity was achieved over the range 3 -140 µg L -1 with a correlation coefficient of 0.9999, and the effects of foreign substances were low.

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Increased absorption of aluminium from a normal dietary intake in dementia

Cited by 67 publications

References 13 publications

Caractérisations chimiques des ustensiles de cuisine artisanale en aluminium fabriqués au Burkina Faso : cas de Ouagadougou

Caractérisations chimiques des ustensiles de cuisine artisanale en aluminium fabriqués au Burkina Faso : cas de Ouagadougou

Further studies on the interrelationship of aluminum and silicon in patients receiving aluminum hydroxide therapy for dyspepsia and factors that relate to the solubilization of aluminum

Spectrophotometric Determination of Aluminum with m-Carboxyphenylfluorone, a Novel Chemical Probe, and Its Application

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