How aluminum, an intracellular ROS generator promotes hepatic and neurological diseases: the metabolic tale.

How aluminum, an intracellular ROS generator promotes hepatic and neurological diseases: the metabolic tale.

Cell biology and toxicology (2013-03-07)

Sungwon Han, Joseph Lemire, Varun P Appanna, Christopher Auger, Zachary Castonguay, Vasu D Appanna

ABSTRACT

Metal pollutants are a global health risk due to their ability to contribute to a variety of diseases. Aluminum (Al), a ubiquitous environmental contaminant is implicated in anemia, osteomalacia, hepatic disorder, and neurological disorder. In this review, we outline how this intracellular generator of reactive oxygen species (ROS) triggers a metabolic shift towards lipogenesis in astrocytes and hepatocytes. This Al-evoked phenomenon is coupled to diminished mitochondrial activity, anerobiosis, and the channeling of α-ketoacids towards anti-oxidant defense. The resulting metabolic reconfiguration leads to fat accumulation and a reduction in ATP synthesis, characteristics that are common to numerous medical disorders. Hence, the ability of Al toxicity to create an oxidative environment promotes dysfunctional metabolic processes in astrocytes and hepatocytes. These molecular events triggered by Al-induced ROS production are the potential mediators of brain and liver disorders.

MATERIALS

Product Number

Brand

Product Description

653608

Sigma-Aldrich

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733369

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326941

Sigma-Aldrich

Aluminum, pellets, 3-8 mesh, ≥99.999% trace metals basis

433705

Sigma-Aldrich

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266558

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518573

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266515

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11009

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326887

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Aluminum, IRMM^®, certified reference material, 1.0 mm wire

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GF96312326

Aluminum, honeycomb, 600x600mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin carbon fiber / epoxy, 99.9%

GF26773230

Aluminum, honeycomb, 300x300mm, thickness 13.9mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin aluminum 0.55mm, 99.9%

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Aluminum, honeycomb, 600x600mm, thickness 5mm, cell size 13mm, cell wall 0.1mm, core density 0.062g/cm³, phenolic adhesive (resin), 99.5%

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Aluminum, honeycomb, 300x300mm, thickness 26.5mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin aluminum 0.55mm, 99.9%

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Aluminum, foam, 150x150mm, thickness 30mm, bulk density 0.2g/cm³, porosity 0.93, aluminum 6101 grade, 98.5%

GF31987525

Aluminum, honeycomb, 300x300mm, thickness 10mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), 99.5%

GF03467202

Aluminum, honeycomb, 300x300mm, thickness 52.3mm, cell size 6.3mm, cell wall 0.064mm, core density 0.083g/cm³, phenolic adhesive (resin), facing skin glass fiber 0.75mm, 99.9%

GF37306267

Aluminum, foam, 150x150mm, thickness 6.35mm, bulk density 0.2g/cm³, porosity 0.93, 2 pores/cm, aluminum 6101 grade, 98.5%

310360

Sigma-Aldrich

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