alexa Blocking beta2-adrenergic receptor attenuates acute stress-induced amyloid beta peptides production.
Neurology

Neurology

Journal of Alzheimers Disease & Parkinsonism

Author(s): Yu NN, Wang XX, Yu JT, Wang ND, Lu RC,

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Abstract Environmental factors play an important role in the Alzheimer's disease (AD) development and stress may accelerate the progression of AD. Beta-adrenergic receptors are activated by stress and may influence different aspects of cognitive function. So, it was hypothesized that stress may accelerate the pathological progression of AD by the activation of beta(2)-adrenergic receptor (beta(2)-AR). We have investigated the role of acute stress and activation of beta(2)-AR in amyloid beta (Abeta) peptides production in a mouse model of acute restraint stress. Injections of the beta(2)-AR-selective agonist clenbuterol hydrochloride enhanced the production of acute stress-induced Abeta peptides production; the beta(2)-AR-selective antagonist ICI 118,551 reduced Abeta peptides production. It is suggested that acute stress induces abnormal activation of beta(2)-AR which subsequently enhances Abeta peptides (the main neuropathological hallmarks of AD) production possibly resulting in the onset of AD. The findings indicate that new therapeutic strategies designed to blocking beta(2)-AR might be valuable for the prevention and treatment of AD. 2010 Elsevier B.V. All rights reserved. This article was published in Brain Res and referenced in Journal of Alzheimers Disease & Parkinsonism

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