Type 2 Diabetes Linked to Increased Risk of Dementia

Researchers in Canada have discovered a link between type 2 diabetes and an increased risk of dementia in the elderly population. The study, published in Neurological Research, found that type 2 diabetes is associated with an increased incidence of atherosclerosis, a condition in which the arteries become hardened and narrowed due to the buildup of plaque. This, in turn, increases the risk of coronary heart disease and stroke, which are significant risk factors for cognitive decline and dementia. The study suggests that the detrimental effects of protracted impaired glucose regulation on the central nervous system, as well as associated complications such as cerebrovascular disease, are likely to be the main causes of observed processing speed and reaction time decrements.

Key Takeaways:

• Researchers at the University of Ottawa found a link between type 2 diabetes and an increased risk of dementia in the elderly population.
• Type 2 diabetes is associated with an increased incidence of atherosclerosis, which increases the risk of coronary heart disease and stroke.
• The study suggests that the detrimental effects of protracted impaired glucose regulation on the central nervous system are likely to be the main cause of observed processing speed and reaction time decrements.
• Cerebrovascular disease is a significant risk factor for dementia in diabetic patients.
• Longitudinal studies suggest that diabetes is an independent risk factor for cognitive decline and dementia.
• The pattern of neuropsychological performance observed in type 2 diabetic patients is likely the result of multiple interacting processes developing over time.
• The study highlights the importance of managing diabetes and preventing associated complications to reduce the risk of dementia.

Statistics:

• The study found that type 2 diabetes is associated with an increased incidence of atherosclerosis.
• The risk of coronary heart disease and stroke is significantly increased in patients with type 2 diabetes.
• Longitudinal studies suggest that diabetes is an independent risk factor for cognitive decline and dementia, with a 2-3-fold increased risk.
• The study found that cerebrovascular disease is a significant risk factor for dementia in diabetic patients.

Sources:

• Messier, C., et al. (2004). The relationships between atherosclerosis, heart disease, type 2 diabetes and dementia. Neurol Res, 26(5), 567-572.
• Gagnon, M. (Contact person for University of Ottawa). School of Psychology, University of Ottawa.
• Maney Publishing. (2004). Neurological Research.