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Dementia

Benefits of insulin in Alzheimer’s disease analysed in mouse study

Research found that intranasal insulin was absorbed rapidly into the brain of the Alzheimer's disease (AD) mice and improved learning and memory. In the image, mouse models in a laboratory

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Insulin was administered intranasally to mice with a model of Alzheimer’s disease and it was found to improve learning and memory  

For patients with Alzheimer’s disease (AD), studies have shown that insulin can improve cognition. However, in humans these benefits are less impressive in women and in patients with certain biomarkers. To determine how insulin has this beneficial effect, researchers carried out experiments in a male mouse model of AD. 

The researchers found that intranasal insulin was absorbed rapidly into the brain of the AD mice and improved learning and memory. Absorption was affected differently when various cellular inhibitors were administered at the same time as the insulin. But importantly, there was little absorption into the bloodstream outside the brain.

“The results presented here provide [a] framework for enhancing intranasal administration so that it could potentially treat [an] increased number of patients with AD, including females,” the authors conclude in the Journal of Alzheimer’s Disease (2015;47:715–728)[1].

Citation: The Pharmaceutical Journal DOI: 10.1211/PJ.2015.20069163

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  • Research found that intranasal insulin was absorbed rapidly into the brain of the Alzheimer's disease (AD) mice and improved learning and memory. In the image, mouse models in a laboratory

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