Lipid peroxidation injury and endoplasmic reticulum stress in Al-induced apoptosis / 中华劳动卫生职业病杂志

ABSTRACT

<p><b>OBJECTIVE</b>To study the role of lipid peroxidation injury and endoplasmic reticulum stress in Al-induced apoptosis.</p><p><b>METHODS</b>Neurons from 0-3 day rats were cultured and treated with different concentrations of AlCl3.6H2O. Morphologic changes of neurons and endoplasmic reticulum were observed under fluorescent and transmission electron microscope; activities of superoxide dismutase (SOD), malondialdehyde (MDA) and ATP enzymes were detected.</p><p><b>RESULTS</b>Typical morphologic changes in neurons apoptosis and endoplasmic reticulum were found under fluorescent and transmission electron microscope; SOD enzyme viability and ATP enzyme viability were significantly increased in the low-dosage group, but reduced in mid and high-dosage group (P < 0.01), whereas MDA levels decreased in the low-dosage group, but increased in mid and high-dosage group (P < 0.01).</p><p><b>CONCLUSION</b>Aluminum may induce neurons apoptosis, and lipid peroxidation injury in endoplasmic reticulum plays an important role in the apoptosis progression.</p>