phytic acid protects against 6-hydroxydopamine-induced dopaminergic neuron apoptosis in normal and iron excess conditions in a cell culture model
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2011
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Abstract
Iron may play an important role in Parkinson's disease (PD) since it can induce oxidative stress-dependent neurodegeneration. The objective of this study was to determine whether the iron chelator, phytic acid (IP6) can protect against 6-hydroxydopamine- (6-OHDA-) induced apoptosis in immortalized rat mesencephalic dopaminergic cells under normal and iron-excess conditions. Caspase-3 activity was increased about 6-fold after 6-OHDA treatment (compared to control; 𝑃<.001) and 30 μmol/L IP6 pretreatment decreased it by 38% (𝑃<.05). Similarly, a 63% protection (𝑃<.001) against 6-OHDA induced DNA fragmentation was observed with IP6 pretreatment. Under iron-excess condition, a 6-fold increase in caspase-3 activity (𝑃<.001) and a 42% increase in DNA fragmentation (𝑃<.05) with 6-OHDA treatment were decreased by 41% (𝑃<.01) and 27% (𝑃<.05), respectively, with 30 μmol/L IP6. Together, our data suggest that IP6 protects against 6-OHDA-induced cell apoptosis in both normal and iron-excess conditions, and IP6 may offer neuroprotection in PD.
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| Reference Key |
xu2011parkinson'sphytic
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|---|---|
| Authors | ;Qi Xu;Anumantha G. Kanthasamy;Manju B. Reddy |
| Journal | heat and mass transfer/waerme- und stoffuebertragung |
| Year | 2011 |
| DOI |
10.4061/2011/431068
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| URL | |
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