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American Focus > Blog > Tech and Science > HIV Drugs Dramatically Lower Risk of Alzheimer’s Disease, Study Finds : ScienceAlert
Tech and Science

HIV Drugs Dramatically Lower Risk of Alzheimer’s Disease, Study Finds : ScienceAlert

Last updated: May 11, 2025 11:05 pm
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HIV Drugs Dramatically Lower Risk of Alzheimer’s Disease, Study Finds : ScienceAlert
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Promising New Class of Treatments for Alzheimer’s Disease

A recent study has identified a potential breakthrough in the treatment of Alzheimer’s disease, utilizing drugs that are already commonly used to treat HIV and hepatitis B. These drugs, known as nucleoside reverse transcriptase inhibitors (NRTIs), have shown promising results in inhibiting the activation of inflammasomes, which are key triggers of inflammation in the body.

The research team in the United States conducted a comprehensive analysis of data from two large health insurance databases, encompassing over 271,198 individuals aged 50 and above with either HIV or hepatitis B. The study revealed that individuals who had a history of taking NRTIs experienced significant reductions in their risk of developing Alzheimer’s disease compared to those receiving other treatments.

Dementia chart
The researchers mapped the development of Alzheimer’s over time in groups of people with and without exposure to NRTI treatment. (Magagnoli et al., Alzheimer’s Dement., 2025)

Further analysis in the Veterans Health Administration database and the MarketScan database showed consistent risk reductions of 6 percent and 13 percent, respectively, for every year of NRTI treatment. While the study’s observational nature prevents definitive causation, the strong association warrants further investigation.

According to the researchers, the inhibitory effect of NRTIs on inflammasomes, which are implicated in Alzheimer’s disease progression, could offer a potential avenue for treatment. Neuroinflammation triggered by the accumulation of amyloid-beta and tau proteins is believed to play a crucial role in the development of Alzheimer’s.

Repurposing existing drugs like NRTIs could expedite the development of Alzheimer’s treatments. Clinical trials are now being considered to explore the efficacy of NRTIs in treating Alzheimer’s disease. Additionally, a new inflammasome-blocking drug called K9 has been developed as a safer and more effective alternative to NRTIs, with plans for testing in Alzheimer’s disease underway.

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As research progresses in understanding Alzheimer’s disease, the potential impact of regulating inflammation in the body is becoming increasingly evident. The findings of this study, though focused on specific medical conditions, highlight the importance of further research into inflammation modulation.

Dr. Jayakrishna Ambati from the University of Virginia emphasizes the significance of these findings, suggesting that taking these drugs could potentially prevent approximately 1 million new cases of Alzheimer’s disease annually. With over 10 million new cases reported worldwide each year, the implications of these findings are substantial.

The study has been published in Alzheimer’s & Dementia and presents a promising step forward in the quest for effective Alzheimer’s treatments.

TAGGED:AlzheimersdiseasedramaticallyDrugsfindsHIVRiskScienceAlertStudy
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