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Protective effect of 6-MFA, an interferon inducer against acrylamide neurotoxicity
R Husain1, V K Khanna, S A Mall
1Industrial Toxicology Research Centre, Lucknow, India.
Abstract:
Protective effect of 6-MFA, an interferon inducer and antiviral agent of fungal origin, was investigated against the neurotoxic effects induced by acrylamide in rats. Animals of 6-MFA (2.5, 5, 10 mg/100 gm, i.p.) pretreated plus acrylamide (ACR) group exhibited a reduction in development of hind limb paralysis which was 34, 25 and 20 (%) with increasing doses of 6-MFA respectively. Corpus striatal dopamine binding was significantly raised in the ACR treated rats while 6-MFA (10 mg) plus ACR group showed no significant change, in comparison to respective controls. Increased binding in the 6-MFA (2.5, 5 mg) pretreated plus ACR group was also evident. Glutathione-s-transferase (GST) activity was markedly reduced (66%) in ACR alone rats while no change was noted in rats pretreated with either dose of 6-MFA alone. However, a significant reversal was noted in animals of 6-MFA plus ACR group in a dose related manner. Conservation of glutathione levels and involvement of microglia, gamma-interferon and other lymphokines has been suggested for the observed protective effect of 6-MFA against neurotoxicity of ACR.
Insights
6-MFA, a fungal-derived interferon inducer, protected rats against acrylamide neurotoxicity by reducing hind limb paralysis and restoring dopamine binding and glutathione-s-transferase activity.
Area of Science:
- Neuroscience
- Toxicology
- Pharmacology
Background:
- Acrylamide (ACR) is a neurotoxin causing hind limb paralysis and altering neurotransmitter systems.
- Fungal-derived compounds are explored for therapeutic potential against toxic insults.
- Interferon inducers may possess neuroprotective properties.
Purpose of the Study:
- To investigate the neuroprotective effects of 6-MFA against acrylamide-induced neurotoxicity in rats.
- To evaluate the impact of 6-MFA on motor function, dopamine binding, and oxidative stress markers.
Main Methods:
- Rats were pretreated with varying doses of 6-MFA before acrylamide administration.
- Hind limb paralysis was assessed, and corpus striatal dopamine binding was measured.
- Glutathione-s-transferase (GST) activity and glutathione levels were analyzed.
Main Results:
- 6-MFA pretreatment dose-dependently reduced acrylamide-induced hind limb paralysis.
- ACR-induced increase in corpus striatal dopamine binding was normalized by 6-MFA.
- 6-MFA reversed the decrease in GST activity caused by ACR, preserving glutathione levels.
Conclusions:
- 6-MFA exhibits significant neuroprotective effects against acrylamide toxicity in rats.
- The protective mechanism may involve modulation of dopamine pathways, glutathione metabolism, and immune responses.
- 6-MFA's ability to induce interferon suggests a role for immune mediators in its neuroprotection.