3 years ago

D-galactose-induced brain ageing model: A systematic review and meta-analysis on cognitive outcomes and oxidative stress indices

Javad Mahmoudi, Malcolm R. Macleod, Sarah K. McCann, Saeed Sadigh-Eteghad, Manouchehr S. Vafaee, Alireza Majdi

by Saeed Sadigh-Eteghad, Alireza Majdi, Sarah K. McCann, Javad Mahmoudi, Manouchehr S. Vafaee, Malcolm R. Macleod

Animal models are commonly used in brain ageing research. Amongst these, models where rodents are exposed to d-galactose are held to recapitulate a number of features of ageing including neurobehavioral and neurochemical changes. However, results from animal studies are often inconsistent. To better understand the characteristics of the model and effects of d-galactose on neurobehavioral and neurochemical outcomes in rodents we performed a systematic review and meta-analysis. We applied random-effects meta-analysis to evaluate the effect of study features. Our results give an overview of the characteristics of the d-galactose rodent ageing model, including neurobehavioral and neurochemical outcomes. We found that few studies took measures to reduce risks of bias, and substantial heterogeneity in the reported effects of d-galactose in included studies. This highlights the need for improvements in the use of the d-galactose rodent ageing model if it is to provide useful in the development of drugs to treat human ageing.

Publisher URL: http://journals.plos.org/plosone/article

DOI: 10.1371/journal.pone.0184122

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