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Phytic Acid Protects against 6-Hydroxydopamine-Induced Dopaminergic Neuron Apoptosis in Normal and Iron Excess Conditions in a Cell CultureModel
Parkinson’s Disease
  • Qi Xu, Shanghai University of Traditional Chinese Medicine and Pharmacology
  • Anumantha G. Kanthasamy, Iowa State University
  • Manju B. Reddy, Iowa State University
Document Type
Article
Publication Date
1-13-2011
DOI
10.4061/2011/431068
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.
Comments

This article is from the Parkinson's Disease, 7(2011): 1-6, doi:10.4061/2011/431068. Posted with permission.

Rights
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright Owner
Qi Xu
Language
en
File Format
application/pdf
Citation Information
Qi Xu, Anumantha G. Kanthasamy and Manju B. Reddy. "Phytic Acid Protects against 6-Hydroxydopamine-Induced Dopaminergic Neuron Apoptosis in Normal and Iron Excess Conditions in a Cell CultureModel" Parkinson’s Disease Vol. 7 (2011) p. 1 - 6
Available at: http://works.bepress.com/manju_reddy/27/