alexa A novel approach to rapidly prevent age-related cognitive decline.
Neurology

Neurology

Journal of Alzheimers Disease & Parkinsonism

Author(s): Adlard PA, Sedjahtera A, Gunawan L, Bray L, Hare D, , Adlard PA, Sedjahtera A, Gunawan L, Bray L, Hare D,

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Abstract The loss of cognitive function is a pervasive and often debilitating feature of the aging process for which there are no effective therapeutics. We hypothesized that a novel metal chaperone (PBT2; Prana Biotechnology, Parkville, Victoria, Australia) would enhance cognition in aged rodents. We show here that PBT2 rapidly improves the performance of aged C57Bl/6 mice in the Morris water maze, concomitant with increases in dendritic spine density, hippocampal neuron number and markers of neurogenesis. There were also increased levels of specific glutamate receptors (alpha-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid and N-methyl-D-aspartate), the glutamate transporter (VGLUT1) and glutamate itself. Markers of synaptic plasticity [calmodulin-dependent protein kinase II (CaMKII) and phosphorylated CaMKII, CREB, synaptophysin] were also increased following PBT2 treatment. We also demonstrate that PBT2 treatment results in a subregion-specific increase in hippocampal zinc, which is increasingly recognized as a potent neuromodulator. These data demonstrate that metal chaperones are a novel approach to the treatment of age-related cognitive decline. © 2013 The Authors. Aging Cell published by the Anatomical Society and John Wiley & Sons Ltd.
This article was published in Aging Cell and referenced in Journal of Alzheimers Disease & Parkinsonism

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