Friday, August 26, 2011

Nutrition and Alzheimer's disease: The detrimental role of a high carbohydrate diet

Nutrition and Alzheimer's disease: The detrimental role of a high carbohydrate diet

Alzheimer's disease is a devastating disease whose recent increase in incidence rates has broad implications
for rising health care costs. Huge amounts of research money are currently being http://www.blogger.com/img/blank.gifinvested in seeking the
underlying cause, with corresponding progress in understanding the disease progression. In this paper, we
highlight how an excess of dietary carbohydrates, particularly fructose, alongside a relative deficiency in
dietary fats and cholesterol, may lead to the development of Alzheimer's disease. A first step in the
pathophysiology of the disease is represented by advanced glycation end-products in crucial plasma proteins
concerned with fat, cholesterol, and oxygen transport. This leads to cholesterol deficiency in neurons, which
significantly impairs their ability to function. Over time, a cascade response leads to impaired glutamate
signaling, increased oxidative damage, mitochondrial and lysosomal dysfunction, increased risk to microbial
infection, and, ultimately, apoptosis. Other neurodegenerative diseases share many properties with
Alzheimer's disease, and may also be due in large part to this same underlying cause.
© 2011 European Federation of Internal Medicine. Published by Elsevier B.V. All rights reserved.

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