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Type 2 diabetes mellitus and cognitive function: understanding the connections.
Lisa Dao1, Sarah Choi2, Matthew Freeby1
1Division of Endocrinology, Diabetes and Metabolism, David Geffen School of Medicine UCLA.
Current Opinion in Endocrinology, Diabetes, and Obesity
|November 17, 2022
Summary
Type 2 diabetes increases the risk of cognitive decline, impacting conditions like Alzheimer's disease. While risk factors are known, effective prevention and treatment strategies for cognitive dysfunction in diabetes require further research.
Area of Science:
- Neuroscience
- Endocrinology
- Geriatrics
Background:
- Type 2 diabetes is a significant risk factor for cognitive dysfunction, including mild cognitive decline, Alzheimer's disease, and vascular dementia.
- Factors such as diabetes duration, comorbidities, and glycemic variability (hyperglycemia and hypoglycemia) can exacerbate cognitive impairment.
Approach:
- This review synthesizes current knowledge on the epidemiology, pathophysiology, risk factors, and potential prevention and treatment strategies for cognitive dysfunction in individuals with type 2 diabetes.
- It examines emerging evidence for diabetes medications like metformin, GLP-1 receptor agonists, and SGLT2 inhibitors regarding their effects on cognition.
Key Points:
- The link between type 2 diabetes and cognitive decline is well-established, with defined epidemiological patterns and risk factors.
- Current evidence-based guidelines for preventing cognitive dysfunction in the diabetic population are lacking.
- Certain diabetes medications show potential benefits for cardiovascular health and may influence cognitive function.
Conclusions:
- Individuals with type 2 diabetes face an elevated risk of cognitive decline, necessitating further investigation into effective interventions.
- While risk factors are understood, robust prevention and treatment strategies remain limited.
- Annual cognitive screening is recommended for adults with diabetes aged 65 and older as part of standard care.
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