It is well known that tau proteins form specific clusters in areas of the brain that are extremely important for the process of memory formation. However, until recently, no direct evidence was obtained that it is tau proteins that cause Alzheimer's disease. Studies have shown that clusters of toxic proteins move to the most important organs as the symptoms of senile dementia progresses.
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And now, researchers at Johns Hopkins University have suggested that the analysis of cerebrospinal fluid can be a tool for early diagnosis of Alzheimer's disease. Now this disease is incurable, but there are many experimental drugs that could stop it at the stage without symptoms. Unfortunately, at such stages, Alzheimer's disease is not diagnosed.