Effects of Dietary Supplementation of Carnosine on Mitochondrial Dysfunction, Amyloid Pathology, and Cognitive Deficits in 3xTg-AD Mice
2011

Effects of Carnosine on Alzheimer's Disease in Mice

Sample size: 35 publication Evidence: moderate

Author Information

Author(s): Corona Carlo, Frazzini Valerio, Silvestri Elena, Lattanzio Rossano, La Sorda Rossana, Piantelli Mauro, Canzoniero Lorella M. T., Ciavardelli Domenico, Rizzarelli Enrico, Sensi Stefano L.

Primary Institution: University “G. d'Annunzio”, Chieti-Pescara, Italy

Hypothesis

Carnosine supplementation may reduce mitochondrial dysfunction and amyloid pathology in a mouse model of Alzheimer's disease.

Conclusion

Carnosine supplementation reduces intraneuronal amyloid deposition and restores mitochondrial function but does not significantly improve cognitive deficits in treated mice.

Supporting Evidence

  • Carnosine supplementation significantly reduced intraneuronal Aβ accumulation in the hippocampus.
  • Carnosine restored mitochondrial function in 3xTg-AD mice.
  • Cognitive performance showed a positive trend but did not reach statistical significance.

Takeaway

Carnosine is a substance that might help with some problems in the brain caused by Alzheimer's, but it doesn't completely fix memory issues.

Methodology

The study used 3xTg-AD mice and assessed the effects of dietary carnosine supplementation on amyloid pathology, mitochondrial function, and cognitive performance using the Morris Water Maze test.

Limitations

The study did not address tau pathology, which may limit the cognitive benefits of carnosine supplementation.

Participant Demographics

Male 3xTg-AD mice were used in the study.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017971

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