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Significant scientific advance in Alzheimer detection techniques

More accurate results than cognitive tests and CT scans in primary care. Findings that could facilitate accessible detection of the disease....
Author: Patricia Alegsa
29-07-2024 21:25







  1. A Promising Advance in Alzheimer's Diagnosis
  2. The Importance of Early Detection of Pathology
  3. A Future with Blood Tests in Primary Care Consultations
  4. Future Perspectives and Challenges



A Promising Advance in Alzheimer's Diagnosis



Scientists have taken another significant step toward the long-sought goal of diagnosing Alzheimer’s disease with a simple blood test.

A recent study published in the journal JAMA shows that this test is significantly more accurate than physicians' interpretations of cognitive tests and CT scans for detecting the disease.

Approximately 90% of the time, the blood test correctly identified whether patients with memory issues had Alzheimer’s, notably outperforming the 73% accuracy of dementia specialists and the 61% of primary care doctors.

Early diagnosis in the detection of cognitive problems in older adults.



The Importance of Early Detection of Pathology



Detecting Alzheimer's pathology in its early stages is crucial, as the disease can begin to develop up to 20 years before symptoms appear. However, experts warn that blood tests should be used with caution.

These tests should be reserved for individuals with memory loss and other symptoms of cognitive decline, not for cognitively healthy individuals.

There are still no effective therapies for those who do not show symptoms, which could result in anxiety if the disease is detected in asymptomatic stages.


A Future with Blood Tests in Primary Care Consultations



The research, conducted in Sweden, highlights the possibility that in the future blood tests could become a routine tool in primary care consultations, similar to mammograms and PSA tests for cancer.

As treatments that can delay cognitive decline are developed, early detection will become even more crucial.

However, experts insist that blood tests should only be a part of a diagnostic process that also includes cognitive tests and CT scans.



Future Perspectives and Challenges



The study included around 1,200 patients with mild memory problems and showed that blood analysis is particularly accurate in more advanced stages of dementia.

However, the implementation of this test in the United States still requires confirmation in a more diverse population and efficient integration into laboratory systems.

The hope is that these advances will improve access to Alzheimer's detection, especially for low-income communities and racial and ethnic minorities.

In conclusion, blood analysis for the diagnosis of Alzheimer’s represents a significant advancement in the search for more accessible and accurate methods to detect this devastating disease.

Over time, this could change the way diagnoses are made and treatments are initiated, thereby improving the quality of life for millions of people around the world.



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