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Can Hyperbaric Oxygen Therapy Reverse Dementia Development?

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A research team in Israel has succeeded in reversing brain trauma using hyperbaric oxygen therapy (HBOT)—the first time in the scientific world that non-drug therapy has been proven effective in preventing the core biological processes responsible for the development of Alzheimer’s disease, reports Israel 21c’s recent article entitled “Hyperbaric oxygen therapy may reverse dementia development.”

HBOT involves having patients sit in a special chamber where the atmospheric pressure is much higher than normal, breathing air composed of 100% oxygen. This form of therapy is considered safe for treating many medical conditions. It also can induce the repair of damaged brain tissue and renewed growth of blood vessels and nerve cells in the brain.

A specific HBOT protocol devised by Tel Aviv University and Shamir Medical Center researchers Prof. Shai Efrati, Prof. Uri Ashery, Dr. Ronit Shapira, Dr. Pablo Blinder and Dr. Amir Hadanny resulted in cerebral blood flow improving in elderly patients by 16-23%, alleviating vascular dysfunction, reducing the volume of pre-existing amyloid plaques and slowing the formation of new ones. These protein plaques are linked to severe degenerative conditions, such as Alzheimer’s. Their findings were published in the journal Aging.

This research, part of a comprehensive program that looks at aging and accompanying ailments as a reversible disease, could lead to a new strategic approach to preventing Alzheimer’s. The first stage of the study was conducted on an animal model. It showed that the therapeutic protocol improves vascular function, creates new blood vessels, prevents the deposit of new amyloid plaques and even leads to the removal of existing amyloid plaque deposits. The second stage was carried out on humans over age 65 with cognitive decline, specifically memory loss — a stage preceding Alzheimer’s and dementia. After 60 HBOT sessions over 90 days, effects were evaluated by high-resolution perfusion MRI.

The unique hyperbaric treatment protocol resulted in the following:

  • Increased blood flow in the range of 16%-23%;
  • An average 16.5% improvement in memory; and
  • Significant improvement in attention and information processing speed.

“After a series of hyperbaric treatments, elderly patients who were already suffering from memory loss showed an improvement of blood flow to the brain, as well as a real improvement in cognitive performance,” said Ashery.

The results show the potential of using HBOT to treat neurologic conditions that originate from hypoxia — a deficiency of oxygen reaching the cells.

Efrati said the ideal approach would be “to commence therapy before the onset of clinical symptoms of dementia and before deterioration and loss of extensive brain tissue. This is the stage at which blood vessels become occluded and the blood flow and the oxygen supply to the brain are diminished — a phenomenon that can already take place at a relatively early age.”

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Reference: Israel 21c (Sep. 12, 2021) “Hyperbaric oxygen therapy may reverse dementia development”