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Xiao-Qin Zhan, Jin-Jing Yao, Dong-Dong Liu, Qianqian Ma and Yan-Ai Mei Aβ40 modulates GABAA receptor α6 subunit expression and rat cerebellar granule neuron maturation through the ERK/mTOR pathway Journal of Neurochemistry 128

Version of Record online: 24 OCT 2013 | DOI: 10.1111/jnc.12471

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In addition to its neurotoxic role in Alzheimer's disease, Aβ is known to play important physiological roles. Whether Aβ improves neuronal development and maturation remains elusive. Our results demonstrate that low concentrations of Aβ40 significantly increase the GABAA receptor α6 subunit expression and associated current in cerebellar granule neurons (CGNs) via the p75NTR and MEK/ERK pathway. Aβ also increases the thickness of the internal granule layer in APP−/− mice cerebellum. Our data provide new evidence for the role of Aβ40 in regulating the maturation of CGNs.

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