Abstract
Aging is an unavoidable phenomenon, often afflicting structure and functionality of body, marked with onset of age associated manifestations. Parkinson's disease (PD), the second most common form of dementia is manifested with Lewy body formation and dopaminergic dysfunction. Present study explores silymarin, a known hepatoprotective regimen for its efficacy in Aging and PD using Caenorhabditis elegans. Silymarin positively modulated longevity, reduced oxidative stress, independent of feeding behaviour. Up-regulation of longevity and stress related genes daf-16, sod-3, gst-4 and skn-1 indicate the possible involvement of these genes for regulating longevity. In-addition silymarin alleviated PD symptoms by reducing α-synuclein levels, lipid accumulation and enhanced dopamine function. Silymarin executes its beneficial effects through mitigation of free radicals, while achieving alleviation in Parkinsonism possibly through pdr-1 mediated recruitment of ubiquitin proteasome system as evident from qPCR studies. Altogether, silymarin emerged as a potent molecule for investigation in Aging and age related disorders.
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