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A High Blood Pressure Protein May Prevent Alzheimer’s

Alissa Sauer
By Alissa SauerOctober 12, 2018

Last Updated: October 12, 2018

A study from the Journal of Clinical Investigation shows that a high blood pressure protein may prevent Alzheimer’s and cognitive decline by destroying beta-amyloid proteins that are highly associated with the disease. High Blood Pressure Protein May Prevent Alzheimer's

Learn more about Alzheimer’s and its correlation to high blood pressure.

ACE – A High Blood Pressure Protein – and Alzheimer’s

ACE is an acronym for “angiotensin converting enzyme” and is a naturally occurring protein found in tissues throughout the body. ACE helps to control blood pressure by regulating the number of fluids in the body.

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People with high blood pressure often take ACE inhibitors to treat congestive heart failure and hypertension. An ACE inhibitor will lower blood pressure by limiting ACE activity and widening blood vessels. While the high activity of the enzyme needs to be controlled for blood pressure, scientists now think that high amounts of ACE may prevent Alzheimer’s and cognitive decline.

A study from the Journal of Clinical Investigation shows that ACE can induce an immune response in the brain and boost brain power in laboratory mice.

Researchers at Cedars-Sinai Medical Center found that by targeting certain immune blood cells, they could overproduce ACE which broke down beta-amyloid proteins associated with Alzheimer’s and slowed cognitive decline.

The results were so shocking that researcher Maya Koronyo-Hamaoui, PhD, assistant professor of neurosurgery in the Department of Neurosurgery and the Department of Biomedical Sciences at Cedars-Sinai Medical Center said:

“We were absolutely astonished by the lack of Alzheimer’s-associated pathology in the crossed mice at the age of 7 months and again at a 13-month follow-up. At first, we thought we had a genotyping error in identifying these mice as carriers of the aggressive familial Alzheimer’s mutations.”

Previous studies have shown that an increase of ACE elevates immunity against tumors and bacterial infections. Researchers say that while the future of Alzheimer’s treatment could involve ACE overexpression, the most informative part of their study was proving the effectiveness of a combined approach that destroys beta-amyloid proteins, which are highly associated with the disease.

Studies Support Findings That Alzheimer’s and High Blood Pressure Medication Are Linked

To further support the findings, a new study from Brigham Young University (BYU) found that anti-hypertensive drugs can protect the brain from Alzheimer’s.

Researchers analyzed the genetic data from over 17,000 people with Alzheimer’s and over 37,000 people without the disease. Their analysis found that there is a correlation between high blood pressure and a decreased risk of Alzheimer’s.

Researchers are careful to note that it is most likely not high blood pressure leading to the protective benefits, but rather the anti-hypertensive drugs that people who have high blood pressure are exposed to.

Associate Professor of Biology at BYU and researcher, John Kauwe, said, “It’s likely that this protective effect is coming from anti-hypertensive drugs. These drugs are already FDA approved. We need to take a serious look at them for Alzheimer’s prevention.”

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Alissa Sauer
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Alissa Sauer

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