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Methods to Characterize Spontaneous and Startle-induced Locomotion in a Rotenone-induced Parkinson's Disease Model of Drosophila
Published on: August 17, 2014
Modulatory effects of hesperidin on rotenone-induced neurotoxicity in Drosophila melanogaster
Iqra Subhan1, Yasir Hasan Siddique1
1Laboratory of Alternative Animal Model, Section of Genetics, Department of Zoology, Aligarh Muslim University, Aligarh, Uttar Pradesh, India.
Abstract:
Neurodegenerative disorders are closely associated with oxidative stress, mitochondrial dysfunction, and apoptosis. Rotenone, a potent inhibitor of mitochondrial complex I, is widely used to model Parkinson-like pathology because it induces oxidative damage and selective loss of dopaminergic neurons. In the present study, Drosophila melanogaster was employed to investigate rotenone-induced neurotoxicity and to evaluate the protective potential of hesperidin, a naturally occurring flavonoid known for its antioxidant and anti-apoptotic activities. Exposure to rotenone resulted in reduced survival rates, impaired locomotion and climbing ability, elevated reactive oxygen species (ROS) levels, increased protein oxidation, and heightened caspase-3 activity, reflecting neurodegenerative changes. Notably, co-treatment with hesperidin mitigated these adverse effects by enhancing motor performance, decreasing oxidative stress markers, and suppressing apoptotic signaling. Collectively, these findings suggest that hesperidin offers significant protection against rotenone-induced neurotoxicity in D. melanogaster, highlighting its potential as a therapeutic candidate for neurodegenerative disorders.
Insights
Hesperidin, an antioxidant flavonoid, protects against rotenone-induced neurotoxicity in fruit flies by reducing oxidative stress and apoptosis. This highlights its therapeutic potential for neurodegenerative disorders.
Area of Science:
- Neuroscience
- Biochemistry
- Pharmacology
Background:
- Neurodegenerative disorders are linked to oxidative stress, mitochondrial dysfunction, and apoptosis.
- Rotenone models Parkinson-like pathology by inducing oxidative damage and dopaminergic neuron loss.
- Hesperidin is a flavonoid with known antioxidant and anti-apoptotic properties.
Purpose of the Study:
- To investigate rotenone-induced neurotoxicity in Drosophila melanogaster.
- To evaluate the neuroprotective effects of hesperidin against rotenone exposure.
- To explore hesperidin's mechanism in mitigating oxidative stress and apoptosis.
Main Methods:
- Utilized Drosophila melanogaster as a model organism.
- Administered rotenone to induce neurotoxicity.
- Co-treated with hesperidin to assess protective potential.
- Measured survival rates, locomotion, reactive oxygen species (ROS), protein oxidation, and caspase-3 activity.
Main Results:
- Rotenone exposure reduced survival and impaired motor function.
- Rotenone increased ROS levels, protein oxidation, and caspase-3 activity.
- Hesperidin co-treatment reversed rotenone-induced deficits, reduced oxidative stress, and suppressed apoptosis.
Conclusions:
- Hesperidin demonstrates significant neuroprotection against rotenone-induced toxicity in Drosophila.
- Hesperidin mitigates neurodegeneration by combating oxidative stress and apoptosis.
- Hesperidin shows promise as a therapeutic agent for neurodegenerative diseases.
