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NEW YORK (Reuters Health) – A new study suggests that exercise can protect against Alzheimer's disease by stimulating a hormone that helps regenerate brain cells.
Scientists have known for some time that sports reduce the risk of dementia, but they have not been able to tell if there is a direct link or if patients simply can not do it. # 39; exercise.
A new series of studies has shown that the hormone released during exercise, called irisin, decreases in the brains of people with Alzheimer's disease and helps to protect against the loss of brain memory and brain damage.
Mice that swam almost daily for five weeks did not develop twice as much memory, although they received the injection of beta-amyloid protein, the protein responsible for blocking the immune system. Brain cells linked to Alzheimer's disease.
Not only does sport protect against dementia, but it can also be the answer to preventing kidney disease.
New drug rejuvenates Alzheimer's disease and depression
This is not possible for seniors with age-related diseases, such as heart disease, arthritis or dementia, "said Dr. Otavio Arancio, professor of pathology and cytology at Columbia University. There is therefore a particular need for drugs mimicking the effects of irisin, protection of synapses and prevention of cognitive regression. "
Despite decades of research and testing, no drug has been able to reverse or prevent this disease, and many large pharmaceutical companies have completely withdrawn from testing.
Recent research has shown that ERSIN promotes brain cell growth in the hippocampus, a region of the brain related to memory and learning.
Using tissue samples taken from the brain library, the researchers found that ersin hormone was present in the hippocampus region of the human brain and that its concentrations were lower in people with Alzheimer's disease.
Studies in animals have shown that when aerosine is turned off in healthy mice, its synapses have a weakened memory.
Scientists are looking for compounds that can increase brain hormone levels or mimic their work, and publish their research in the journal Nature Medicine.
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