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. In order to obtain the data needed for the study, the researchers tracked 1,288 people and monitored their health status until they reached the end of their life. on their eventual death.
Study participants, all aged 65 and over, did not suffer from dementia and had agreed to donate their brains for autopsy to death at the beginning of the year. study. Of the 1,288 participants in the study, there were approximately 640 clergy, The Atlanta Journal-Constitution.
The average age at death of participants was 89.
Blood pressure was documented annually for participants.
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When performing autopsies, researchers found that nearly half of participants had dead tissue in their brains. The presence of dead tissue in the brain could be a sign that a person has suffered from what is called a "silent stroke".
Participants who had high blood pressure were even more at risk of having dead tissue in their brains. 19659003] The results remained the same after the researchers took into account the use of drugs designed to counter high blood pressure.
The researchers also noted a connection between participants with high blood pressure and entanglements in their brains. This is important because tau is known as one of the hallmarks of Alzheimer's disease.
However, they failed to locate amyloid plaques in the brain, which is another revealing sign of the disease
. that their discoveries related to Alzheimer's disease and high blood pressure are still difficult to understand at this stage. James Hendrix, director of global scientific initiatives at the Alzheimer's Association, said the researchers conducted a "pretty strong study" because of the need for extensive research to understand exactly what is going on. past.
An expert who participated in the study, Dr. David Knopman of the Mayo Clinic, said that one of the important findings of the study is that "the treatment of Blood pressure is important throughout life "
. Other news regarding the study conducted by Arvanitakis and other researchers is expected to be available in the future.
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