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New Blood Thinners May Help Slow Down Alzheimer's Disease

Mayur Tembhare
  1. ,308 people were part of the study, all of whom had both atrial fibrillation and Alzheimer's disease.

  2. The researchers found that NOACs slowed down cognitive decline compared to warfarin or no medication.

  3. People taking NOACs also had lower risks of death, stroke, blood clots, and fractures.

  4. Warfarin was associated with higher risks of major bleeding.

New Blood Thinners May Help Slow Down Alzheimer's Disease

Topic: Health

Researchers from Karolinska Institutet found that people with both atrial fibrillation and Alzheimer's disease who took newer blood thinners called NOACs experienced slower cognitive decline compared to those taking older blood thinners or no medication. This study was published in the European Heart Journal.

People with atrial fibrillation, a common heart rhythm condition in older adults, often develop Alzheimer's disease as well. Doctors give them blood thinners to prevent blood clots and strokes.

A team of researchers from Karolinska Institutet in Sweden wanted to know if these blood thinners could also help slow down cognitive decline in people with Alzheimer's disease. They analyzed data from 7,308 people who had both conditions and were taking either newer NOACs or older warfarin blood thinners.

The researchers found that those taking NOACs showed a slower decline in cognitive function compared to those taking warfarin or no medication. This was measured using the Mini-Mental State Examination (MMSE), which is a standard test for thinking and memory skills.

In addition to slowing down cognitive decline, people taking NOACs also had lower risks of death, stroke, blood clots, and fractures compared to those not taking anticoagulants. Warfarin was associated with lower risks of death and stroke, but higher risks of major bleeding.

Why It Matters

This study is important for Indians because it shows that newer blood thinners may help slow down cognitive decline in people with Alzheimer's disease. As India's population ages, this could have significant implications for healthcare and social services.

Key Facts

  • 7,308 people were part of the study, all of whom had both atrial fibrillation and Alzheimer's disease.
  • The researchers found that NOACs slowed down cognitive decline compared to warfarin or no medication.
  • People taking NOACs also had lower risks of death, stroke, blood clots, and fractures.
  • Warfarin was associated with higher risks of major bleeding.

Key Terms

Atrial fibrillation
a common heart rhythm condition in older adults
NOACs
newer blood thinners that are more effective and have fewer side effects
Warfarin
an older type of blood thinner

Implications

This study is important for Indians because it shows that newer blood thinners may help slow down cognitive decline in people with Alzheimer's disease. As India's population ages, this could have significant implications for healthcare and social services.

Source: https://www.sciencedaily.com/releases/2026/09/260917003732.htm

Journal reference:

  1. Nanbo Zhu, Hong Xu, Sara Garcia-Ptacek, Sumonto Mitra, Maria Eriksdotter. Oral anticoagulants, cognition, and clinical outcomes in atrial fibrillation and Alzheimer’s disease: a Swedish nationwide study. European Heart Journal, 2026; DOI: 10.1093/eurheartj/ehag584

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