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Basic Science and Pathogenesis.

Maryam Moosavi1, Samaneh Reiszadeh Jahromi2

  • 1Nanomedicine and Nanobiology Research Center, Shiraz, Fars, Iran (Islamic Republic of).

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Summary
This summary is machine-generated.

Curcumin, a natural compound, protects against aluminum nanoparticle (AlNP)-induced cognitive decline by enhancing brain-derived neurotrophic factor (BDNF) and Akt signaling pathways.

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Area of Science:

  • Neuroscience
  • Toxicology
  • Pharmacology

Background:

  • Aluminum (Al) exposure is implicated in Alzheimer's Disease (AD).
  • Aluminum nanoparticles (AlNPs) demonstrate greater neurotoxicity than Al ions.
  • Curcumin is a natural compound with known neuroprotective properties.

Purpose of the Study:

  • To investigate curcumin's efficacy in mitigating AlNP-induced cognitive impairment.
  • To explore the underlying molecular mechanisms of curcumin's neuroprotection against AlNPs.

Main Methods:

  • Adult male Swiss mice were exposed to AlNPs and treated with varying doses of curcumin.
  • Cognitive function was assessed using the passive avoidance test.
  • Hippocampal levels of BDNF and phosphorylated Akt were analyzed via Western blot.

Main Results:

  • AlNP exposure significantly impaired cognitive function and reduced hippocampal BDNF and phosphorylated Akt levels.
  • Curcumin treatment, especially at 25 mg/kg, ameliorated cognitive deficits.
  • Curcumin administration increased BDNF and phosphorylated Akt levels, suggesting activation of the BDNF-Akt pathway.

Conclusions:

  • Curcumin exhibits significant neuroprotective effects against AlNP-induced cognitive impairment.
  • The mechanism involves the enhancement of the hippocampal BDNF-Akt signaling pathway.
  • Curcumin shows potential as a natural therapeutic agent against AlNP neurotoxicity.