Is Type 2 Diabetes an Independent Risk Factor for Alzheimer Patients with Depression?

Research Paper Title

Analysis of Risk Factors for Depression in Alzheimer’s Disease Patients.

Background

Depression, which affects about 52% of Alzheimer’s disease (AD) patients, can worsen cognitive impairment and increase mortality and suicide rates.

The researchers hope to provide clinical evidence for the prevention and treatment of depression in AD patients by investigating related risk factors of depression in AD patients.

Methods

158 AD inpatients of the Department of Neurology, Daping Hospital from September 2017 to March 2019 were enrolled. General information, laboratory tests, cognitive and emotional function assessments of the inpatients were collected.

Logistic regression was used to analyse the risk factors of depression in AD patients, and the relationship between 17 Hamilton depression scale scores and HbA1c levels in AD patients was further analysed.

Results

The prevalence of age, gender, hypertension, hyperlipidemia, Type 2 diabetes mellitus (T2DM), and white matter lesions (WML) in the AD with depression group was significantly different from without depression group.

Hypertension, T2DM, and WML are independent risk factors for depression in AD patients.

The depression scores of AD patients with HbA1c>6.5% were significantly higher than AD patients with HbA1c ≤ 6.5%, and there were significant difference in depression scale scores between using anti-diabetes drugs group and not using anti-diabetes drugs group whose HbA1c level is >6.5%, while no difference in depression scores between using anti-diabetes drugs group and not using anti-diabetes drugs group whose HbA1c level is ≤6.5%.

Conclusions

T2DM is an independent risk factor for AD patients with depression.

Increased HbA1c levels aggravate depression in AD patients, and controlling HbA1c levels and anti-diabetes drugs can reduce the severity of depression in AD patients.

Reference

Yang, H., Hong, W., Chen, L., Tao, Y., Peng, Z. & Zhou, H. (2020) Analysis of Risk Factors for Depression in Alzheimer’s Disease Patients. The International Journal of Neuroscience. 1-6. doi: 10.1080/00207454.2020.1730369. Online ahead of print.

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