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7 Brain Benefits of Turmeric Derivative for Dementia Prevention

Thursday, April 20, 2017 17:45
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The Salk team expanded upon their previous development of a drug candidate, called J147, which takes a different tack by targeting Alzheimer’s major risk factor–old age. In the new work, the team showed that the drug candidate worked well in a mouse model of aging not typically used in Alzheimer’s research. When these mice were treated with J147, they had better memory and cognition, healthier blood vessels in the brain and other improved physiological features, 
 
“Initially, the impetus was to test this drug in a novel animal model that was more similar to 99 percent of Alzheimer’s cases,” says Antonio Currais, the lead author and a member of Professor David Schubert’s Cellular Neurobiology Laboratory at Salk. “We did not predict we’d see this sort of anti-aging effect, but J147 made old mice look like they were young, based upon a number of physiological parameters.”

Alzheimer’s disease is a progressive brain disorder, recently ranked as the third leading cause of death in the United States and affecting more than five million Americans. It is also the most common cause of dementia in older adults, according to the National Institutes of Health.

“While most drugs developed in the past 20 years target the amyloid plaque deposits in the brain (which are a hallmark of the disease), none have proven effective in the clinic,” says Schubert, senior author of the study.Expanding the Fight to More Common DementiasSeveral years ago, Schubert and his colleagues began to approach the treatment of the disease from a new angle. Rather than target amyloid, the lab decided to zero in on the major risk factor for the disease–old age. Using cell-based screens against old age-associated brain toxicities, they synthesized J147.

Previously, the team found that J147 could prevent and even reverse memory loss and Alzheimer’s pathology in mice that have a version of the inherited form of Alzheimer’s, the most commonly used mouse model. However, this form of the disease comprises only about 1 percent of Alzheimer’s cases. For everyone else, old age is the primary risk factor, says Schubert. The team wanted to explore the effects of the drug candidate on a breed of mice that age rapidly and experience a version of dementia that more closely resembles the age-related human disorder.Young Mice, Old Mice and J147-fed MiceIn this latest work, the researchers used a comprehensive set of assays to measure the expression of all genes in the brain, as well as over 500 small molecules involved with metabolism in the brains and blood of three groups of the rapidly aging mice. The three groups of rapidly aging mice included one set that was young, one set that was old and one set that was old but fed J147 as they aged.7 BenefitsThe old mice fed J147 saw the following benefits:

  1. They performed better on memory and other tests for cognition
  2.  
  3. They displayed more robust motor movements.
  4.  
  5. They had fewer pathological signs of Alzheimer’s in their brains.
  6.  
  7. J147 prevented the leakage of blood from the microvessels in the brains of old mice. “Damaged blood vessels are a common feature of aging in general, and in Alzheimer’s, it is frequently much worse,” says Currais.

    Importantly, because of the large amount of data collected on the three groups of mice, it was possible to demonstrate that many aspects of gene expression and metabolism in the old mice fed J147 were very similar to those of the young animals. These included:

  8.  
  9. markers for increased energy metabolism,
  10.  
  11. reduced brain inflammation and
  12.  
  13. reduced levels of oxidized fatty acids in the brain.

Human Clinical TrialsCurrais and Schubert note that while these studies represent a new and exciting approach to Alzheimer’s drug discovery and animal testing in the context of aging, the only way to demonstrate the clinical relevance of the work is to move J147 into human clinical trials for Alzheimer’s disease.

“If proven safe and effective for Alzheimer’s, the apparent anti-aging effect of J147 would be a welcome benefit,” adds Schubert. The team aims to begin human trials next year.

Related Article:
Curry Derivative J147 Beats Aricept for Alzheimer’s

MORE INFORMATION:

  • Other authors on the paper include Oswald Quehenberger of the University of California, San Diego; and Joshua Goldberg, Catherine Farrokhi, Max Chang, Marguerite Prior, Richard Dargusch, Daniel Daugherty and Pamela Maher of the Salk Institute.
  •  
  • This study was supported by the Salk Institute Pioneer Fund Postdoctoral Scholar Award and the Salk Nomis Fellowship Award, fellowships from the Hewitt Foundation and Bundy Foundation, and grants from the Burns Foundation and NIH.

SOURCE:

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Source: http://dementiaviews.blogspot.com/2017/04/7-brain-benefits-of-turmeric-derivative.html

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