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A protein recently found in the brain -- gamma secretase activating protein or GSAP -- increases the production of beta-amyloid, the presumed culprit in Alzheimer’s disease. In a mouse model, reducing GSAP led to reduced beta-amyloid disposition ( Nature, 2010, 467, pp 95-99.) This prompts in turn the appealing notion that a drug could be found to inhibit GSAP and thereby forestall or prevent the onset of Alzheimer’s disease.
Imatinib (Gleevec, used to treat chronic myelocytic leukemia or CML) does inhibit GSAP and, in laboratory models, reduces beta-amyloid creation. Unfortunately, imatinib does not cross the blood brain barrier so it cannot be used clinically. A search is now on for a compound that acts like imatinib yet can get into the brain. If found, it would be a very exciting discovery.
Tuesday, October 26, 2010
New Finding May Aid Alzheimer’s Treatment Options
Labels:
Alzheimer’s disease,
Gleevec,
GSAP,
imatinib
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Praise for Dr Schimpff
The craft of science writing requires skills that are arguably the most underestimated and misunderstood in the media world. Dumbing down all too often gets mistaken for clarity. Showmanship frequently masks a poor presentation of scientific issues. Factoids are paraded in lieu of ideas. Answers are marketed at the expense of searching questions. By contrast, Steve Schimpff provides a fine combination of enlightenment and reading satisfaction. As a medical scientist he brings his readers encyclopedic knowledge of his subject. As a teacher and as a medical ambassador to other disciplines he's learned how to explain medical breakthroughs without unnecessary jargon. As an advisor to policymakers he's acquired the knack of cutting directly to the practical effects, showing how advances in medical science affect the big lifestyle and economic questions that concern us all. But Schimpff's greatest strength as a writer is that he's a physician through and through, caring above all for the person. His engaging conversational style, insights and fascinating treasury of cutting-edge information leave both lay readers and medical professionals turning his pages. In his hands the impact of new medical technologies and discoveries becomes an engrossing story about what lies ahead for us in the 21st century: as healthy people, as patients of all ages, as children, as parents, as taxpayers, as both consumers and providers of health services. There can be few greater stories than the adventure of what awaits our minds, bodies, budgets, lifespans and societies as new technologies change our world. Schimpff tells it with passion, vision, sweep, intelligence and an urgency that none of us can ignore.
-- N.J. Slabbert, science writer, co-author of Innovation, The Key to Prosperity: Technology & America's Role in the 21st Century Global Economy (with Aris Melissaratos, director of technology enterprise at the John Hopkins University).
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This post was very well written, and it also contains many useful facts. I appreciated your professional way of writing the post. Thanks, you have made it very easy for me to understand.
This post was very well written, and it also contains many useful facts. I appreciated your professional way of writing the post.
This post was very well written, and it also contains many useful facts. I appreciated your professional way of writing the post.
Very Nice post.
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