Semaglutide may lower Alzheimer's risk in type 2 diabetes patients

Researchers at the Case Western Reserve School of Medicine have found that, when compared to seven other anti-diabetic drugs, semaglutide, a popular diabetes and weight-loss drug, may lower the risk of Alzheimer's disease in people with type 2 diabetes (T2D).

Alzheimer's disease is a brain disorder that slowly destroys memory and thinking skills. According to the Alzheimer's Association, nearly 7 million Americans 65 and older are living with the disease, and there are more deaths from Alzheimer's than breast and prostate cancer combined.

The study, published today in the journal Alzheimer's & Dementia: The Journal of the Alzheimer's Association, suggests T2D patients taking semaglutide had a significantly lower risk of developing Alzheimer's disease. These results were consistent across different subgroups, including obesity status, gender and age.

Semaglutide, a glucagon-like peptide receptor (GLP-1R) molecule that decreases hunger and helps regulate blood sugar in T2D, is also the active component in the diabetes and weight-loss drugs Wegovy and Ozempic.

The research team-;led by biomedical informatics professor Rong Xu-;analyzed three years of electronic records of nearly 1 million U.S. patients with T2D. The researchers used a statistical approach that mimics a randomized clinical trial.

They found patients prescribed semaglutide had a significantly lower risk for Alzheimer's disease, compared to those who had taken any of seven other anti-diabetic medications, including other types of GLP-1R-targeting medications.

About 120,000 Americans die from Alzheimer's disease each year, with the disease listed as the seventh-leading cause of death nationally, according to the CDC.

"This new study provides real-world evidence for its impact on Alzheimer's disease, even though preclinical research has suggested that semaglutide may protect against neurodegeneration and neuroinflammation," said Xu, who also directs the medical school's Center for AI in Drug Discovery and is a member of the Cancer Genomics Epigenomics Program at the Case Cancer Comprehensive Center.

Although their findings potentially support the idea that semaglutide could prevent Alzheimer's disease, the study's limitations restrict the researchers from making firm causal conclusions, she said.

Our results indicate that further research into semaglutide's use will need to be further investigated through randomized clinical trials so alternative drugs can be tested as potential treatment for this debilitating illness."

Rong Xu, biomedical informatics professor

Research reported in this press release was supported by the National Institute on Aging and the National Center for Advancing Translational Sciences, both parts of the National Institutes of Health, under award numbers AG057557, AG061388, AG062272, AG076649, and TR004528. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.

Source:
Journal reference:

Wang, W., et al. (2024) Associations of semaglutide with first-time diagnosis of Alzheimer's disease in patients with type 2 diabetes: Target trial emulation using nationwide real-world data in the US. Alzheimer's & Dementia: The Journal of the Alzheimer's Association. doi.org/10.1002/alz.14313.

Comments

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of News Medical.
Post a new comment
Post

While we only use edited and approved content for Azthena answers, it may on occasions provide incorrect responses. Please confirm any data provided with the related suppliers or authors. We do not provide medical advice, if you search for medical information you must always consult a medical professional before acting on any information provided.

Your questions, but not your email details will be shared with OpenAI and retained for 30 days in accordance with their privacy principles.

Please do not ask questions that use sensitive or confidential information.

Read the full Terms & Conditions.

You might also like...
Could vitamin D be the missing link in managing type 2 diabetes? Recent study weighs in