RT info:eu-repo/semantics/article
T1 Pomegranate juice exacerbates oxidative stress and nigrostriatal degeneration in Parkinson's disease
A1 Tapias, Victor
A1 Cannon, Jason R.
A1 Greenamyre, J. Timothy
AB Numerous factors contribute to the death of substantia nigra (SN) dopamine (DA) neurons in Parkinson's disease (PD). Compelling evidence implicates mitochondrial deficiency, oxidative stress, and inflammation as important pathogenic factors in PD. Chronic exposure of rats to rotenone causes a PD-like syndrome, in part by causing oxidative damage and inflammation in substantia nigra. Pomegranate juice (PJ) has the greatest composite antioxidant potency index among beverages, and it has been demonstrated to have protective effects in a transgenic model of Alzheimer's disease. The present study was designed to examine the potential neuroprotective effects of PJ in the rotenone model of PD. Oral administration of PJ did not mitigate or prevent experimental PD but instead increased nigrostriatal terminal depletion, DA neuron loss, the inflammatory response, and caspase activation, thereby heightening neurodegeneration. The mechanisms underlying this effect are uncertain, but the finding that PJ per se enhanced nitrotyrosine, inducible nitric oxide synthase, and activated caspase-3 expression in nigral DA neurons is consistent with its potential pro-oxidant activity.
SN 0197-4580
YR 2014
FD 2014
LK https://uvadoc.uva.es/handle/10324/63881
UL https://uvadoc.uva.es/handle/10324/63881
LA eng
NO Neurobiology of Aging, Mayo 2014, vol. 35, n. 5. p. 1162-1176
NO Producción Científica
DS UVaDOC
RD 30-jun-2024