[Regulation of mitophagy and mitochondrial biogenesis by monocarbonyl analogues of curcumin in the cerebral cortex of rats in experimental Alzheimer's disease].

OBJECTIVE

To evaluate the effect of monocarbonyl analogues of curcumin on changes in the processes of mitophagy and mitochondrial biogenesis in the cerebral cortex of rats with experimental Alzheimer's disease.

MATERIAL AND

METHODS

Alzheimer's disease was modeled in Wistar rats of both sexes by injection of β-amyloid fragments into the hippocampus of the animal. Compounds (1E, 4E)-1.5-bis (3.4.5-trimethoxyphenyl) penta-1.4-diene-3-one (AZBAX4 code) and (1E, 4E)-1.5-bis (2.4.6-trimethoxyphenyl) penta-1.4-diene-3-one (AZBAX6 code) at a dose of 20 mg/ kg (orally) and the reference drug donepezil at a dose of 50 mg/kg (orally) were administered for 30 days, after which changes in the activity of succinate dehydrogenase, cytochrome-c oxidase and citrate synthase as enzymatic biomarkers of mitochondrial biogenesis and mitophagy, respectively, were evaluated in the mitochondrial fraction of the cerebral cortex.

RESULTS

The administration of AZBAX4 and AZBAX6 compounds led to an increase in the activity of succinate dehydrogenase; cytochrome-c oxidase, as well as citrate synthase in relation to the same indicators of the group of untreated animals. The use of the analyzed compounds was equally effective in both female and male rats. At the same time, it should be noted that the analyzed compounds significantly exceeded the activity level of the reference donepezil.

CONCLUSION

AZBAX4 and AZBAX6 contribute to an increase in the intensity of mitochondrial biogenesis and mitophagy reactions in the cerebral cortex of rats with Alzheimer's disease, which makes them potentially effective neuroprotective compounds.