Abstract
The clinical relationship between Type II diabetes mellitus and Alzheimers disease has been debated for over a decade. While several studies have not shown a clear clinical correlation, others have demonstrated that Type II diabetes is an independent risk factor for Alzheimers disease. Why diabetes would increase the likelihood of Alzheimers disease is not immediately clear, although recent studies have demonstrated an impact of insulin abnormalities, insulin resistance and advanced glycation end products on both the development of neural amyloid plaques and neurofibrillary tangles. Although endodermal in embryologic development, the pancreas is a highly innervated organ that shares a number of molecular similarities with brain at the level of the transcriptome and proteome. Type II diabetes and Alzheimers disease are characterized by localized amyloid deposits that progress during the course of the disease. Comparing amyloid deposition in the brain and pancreas reveals some striking pathophy siologic similarities. Neurodegeneration in pancreatic islets, as manifested by neurofibrillary tangles, is less well studied than in Alzheimers disease but may also occur. This review summarizes what is currently known about the clinical and biological relationships and similarities between Type II diabetes and Alzheimers disease.
Keywords: Type II Diabetes Mellitus, Alzheimers disease, islet, pancreas, islet transplantation
Current Alzheimer Research
Title: The Clinical and Biological Relationship between Type II Diabetes Mellitus and Alzheimers Disease
Volume: 1 Issue: 1
Author(s): Mark R. Nicolls
Affiliation:
Keywords: Type II Diabetes Mellitus, Alzheimers disease, islet, pancreas, islet transplantation
Abstract: The clinical relationship between Type II diabetes mellitus and Alzheimers disease has been debated for over a decade. While several studies have not shown a clear clinical correlation, others have demonstrated that Type II diabetes is an independent risk factor for Alzheimers disease. Why diabetes would increase the likelihood of Alzheimers disease is not immediately clear, although recent studies have demonstrated an impact of insulin abnormalities, insulin resistance and advanced glycation end products on both the development of neural amyloid plaques and neurofibrillary tangles. Although endodermal in embryologic development, the pancreas is a highly innervated organ that shares a number of molecular similarities with brain at the level of the transcriptome and proteome. Type II diabetes and Alzheimers disease are characterized by localized amyloid deposits that progress during the course of the disease. Comparing amyloid deposition in the brain and pancreas reveals some striking pathophy siologic similarities. Neurodegeneration in pancreatic islets, as manifested by neurofibrillary tangles, is less well studied than in Alzheimers disease but may also occur. This review summarizes what is currently known about the clinical and biological relationships and similarities between Type II diabetes and Alzheimers disease.
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Nicolls R. Mark, The Clinical and Biological Relationship between Type II Diabetes Mellitus and Alzheimers Disease, Current Alzheimer Research 2004; 1 (1) . https://dx.doi.org/10.2174/1567205043480555
DOI https://dx.doi.org/10.2174/1567205043480555 |
Print ISSN 1567-2050 |
Publisher Name Bentham Science Publisher |
Online ISSN 1875-5828 |
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