Researchers are close to finding early cancer with a blood test. They may soon do the same with Alzheimer’s disease. A new blood test called p-tau217 has shown great promise in diagnosing people with the disease, according to findings published online July 28, 2020, by JAMA.
The test looks for a specific type of tau protein in the blood. In people with Alzheimer’s, tau protein in the brain forms tangles. Accumulation of tau protein tangles along with beta-amyloid deposits is thought to play a key role in how the disease develops.
For this study, the researchers combined the results of three separate studies that used the p-tau217 blood test. One study looked at brain autopsies. Another examined people with and without a clinical diagnosis of Alzheimer’s. The third compared people who have a genetic mutation highly associated with Alzheimer’s to those without the mutation. Based on blood samples taken from a total of 1,402 people, the blood test was highly accurate in determining whether cognitive changes and memory loss were likely due to the disease. It also accurately identified Alzheimer’s before dementia occurred.
More studies are needed to verify the findings. While there is no cure for Alzheimer’s, the test could help identify the disease as early as 20 years before cognitive issues appear, says the researchers.
Bible verses for today’s meditation and inspiration: Matthew E. McLaren
Set your minds on things above, not on earthly things. 3 For you died, and your life is now hidden with Christ in God. 4 When Christ, who is your life, appears, then you also will appear with him in glory. 5 Put to death, therefore, whatever belongs to your earthly nature: sexual immorality, impurity, lust, evil desires and greed, which is idolatry. Collation 3:2-5
5 Let this mind be in you, which was also in Christ Jesus: 6 Who, being in the form of God, thought it not robbery to be equal with God:
7 But made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men:
8 And being found in fashion as a man, he humbled himself, and became obedient unto death, even the death of the cross.
9 Wherefore God also hath highly exalted him, and given him a name which is above every name:
10 That at the name of Jesus every knee should bow, of things in heaven, and things in earth, and things under the earth;
11 And that every tongue should confess that Jesus Christ is Lord, to the glory of God the Father. Philippians 2:5-11 (KJV)
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