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Morin Mitigates Methamphetamine-Induced Neurotoxicity: Effects on Motor and Cognitive Function
Godson E Anyanwu1,2, Amarachukwu Vivian Umeano3, Vivian O Ojiakor1,4
1Department of Anatomy, Faculty of Biomedical Sciences, Kampala International University, Kampala, Uganda.
Journal of Experimental Pharmacology
|June 17, 2025
Summary
Morin, a natural flavonoid, effectively reverses methamphetamine (METH)-induced neurotoxicity and improves motor and cognitive deficits in rats by reducing oxidative stress and inflammation.
Area of Science:
- Neuroscience
- Pharmacology
- Toxicology
Background:
- Neurodegenerative diseases present significant public health challenges.
- Methamphetamine (METH) exposure causes persistent neurological damage, including neuronal loss and functional deficits.
- Identifying therapeutic agents to counteract METH-induced neurotoxicity is crucial.
Purpose of the Study:
- To investigate the neuroprotective potential of Morin against METH-induced neurotoxicity.
- To evaluate Morin's efficacy in reversing motor and cognitive impairments caused by METH.
- To explore the underlying mechanisms of Morin's action, including its effects on oxidative stress and inflammation.
Main Methods:
- Adult rats were exposed to METH and subsequently treated with varying doses of Morin or fluoxetine.
- Neurobehavioral tests assessed motor and cognitive functions.
- Biochemical assays measured oxidative stress markers, inflammatory cytokines, dopamine, and acetylcholine.
- Histological and immunohistochemical analyses examined neuronal integrity in the basal ganglia.
Main Results:
- METH exposure led to increased oxidative stress, inflammation, altered neurotransmitter levels, and impaired motor/cognitive functions, with associated neuronal loss.
- Morin administration dose-dependently ameliorated METH-induced neurobehavioral deficits and neuronal damage.
- Morin treatment significantly reduced oxidative stress and inflammatory markers in METH-exposed rats.
Conclusions:
- Morin demonstrates significant neuroprotective effects against METH-induced neurotoxicity.
- Morin mitigates METH-induced neurological damage by reducing oxidative stress and suppressing inflammation.
- Morin shows potential as a therapeutic agent for addressing the neurological consequences of methamphetamine misuse.
Keywords:
Morinacetylcholinecognitive functiondopaminemethamphetaminemotor functionneurodegenerationneurotoxicityMore Related Videos
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