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Abstract #4327

Mitochondrial Catalase Overexpression recovers axonal transport deficits and improves hippocampal long-term potentiation in APP/PS1 mice

Tabassum Majid 1,2 , Caiwei Guo 3 , Tao Ma 4 , Erik Klann 4 , and Robia Pautler 1,2

1 Translational Biology and Molecular Medicine, Baylor College of Medicine, Houston, Texas, United States, 2 Molecular Physiology & Biophysics, Baylor College of Medicine, Houston, Texas, United States, 3 Department of Neuroscience, Baylor College of Medicine, Houston, Texas, United States, 4 New York University, New York, New York, United States

Antioxidant therapies for Alzheimer's disease (AD) have been met with limited success. Previous work from our lab has demonstrated that genetic superoxide dismutase 2 overexpression can ameliorate Alzheimer's pathology in the Tg2576 mouse model of AD. After establishing the role of superoxide in the pathogenesis of AD, we sought to explore the role of catalase overexpression in an aggressive AD model (APP/PS1). We report improvements in axonal transport rate as well as significant improvements in long-term potentiation within the hippocampus. From our findings, we add evidence to elucidate the role of specific redox species in AD.

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