
WHAT A RELIEF, WHEW!
Is my heading and initial comment whimsical? You bet it is! It is intentional, not occasioned by accident or mistake! And here's why:
We are so intent on finding a cure we overlook means at hand to handle the disease we are trying to cure. I have no objection to a cure. I am on the other hand a realist.
Looking at what we can really expect my observations are these:
1. A cure will be difficult to tie down in that there are so many variations of biochemical change that cause AD
2. We can do something with mice, something with rats, but seem to have done little more in finding a curt
3. Ohmygod I hpe we find one but suspect it will not be within my life span!
4. There is so much that needs our emphasis and concentration in care and reducing the cost of it
5. The cost of it currently is confiscatory if you are not super rich or very poor
6. The cost of it confiscates the surviving spouses life time support caring for the afflicted spouse.
7. Having AD is bad enough. The affect on my spouse is reprehensible
8. Care for early stage AD afflicted will slow the slipping into later stage longer saving the eventual cost of care
9. These are tangibles, efforts that produce promise
10. This is where our attention is needed.
Let me close this comment with this: I am sincerely happy with what is being done for the 50 Florida mice in the cohort study!
Coffee 'may reverse Alzheimer's'
Drinking five cups of coffee a day could reverse memory problems seen in Alzheimer's disease, US scientists say.
The Florida research, carried out on mice, also suggested caffeine hampered the production of the protein plaques which are the hallmark of the disease.
Previous research has also suggested a protective effect from caffeine.
But British experts said the Journal of Alzheimer's disease study did not mean that dementia patients should start using caffeine supplements.
“ The results are particularly exciting in that a reversal of pre-existing memory impairment is more difficult to achieve ”
Dr Gary Arendash University of Florida
The 55 mice used in the University of Florida study had been bred to develop symptoms of Alzheimer's disease.
First the researchers used behavioural tests to confirm the mice were exhibiting signs of memory impairment when they were aged 18 to 19 months, the equivalent to humans being about 70.
Then they gave half the mice caffeine in their drinking water. The rest were given plain water.
The mice were given the equivalent of five 8 oz (227 grams) cups of coffee a day - about 500 milligrams of caffeine.
The researchers say this is the same as is found in two cups of "specialty" coffees such as lattes or cappuccinos from coffee shops, 14 cups of tea, or 20 soft drinks.
When the mice were tested again after two months, those who were given the caffeine performed much better on tests measuring their memory and thinking skills and performed as well as mice of the same age without dementia.
Those drinking plain water continued to do poorly on the tests.
In addition, the brains of the mice given caffeine showed nearly a 50% reduction in levels of the beta amyloid protein, which forms destructive clumps in the brains of dementia patients.
Further tests suggested caffeine affects the production of both the enzymes needed to produce beta amyloid.
The researchers also suggest that caffeine suppresses inflammatory changes in the brain that lead to an overabundance of the protein.
Earlier research by the same team had shown younger mice, who had also been bred to develop Alzheimer's but who were given caffeine in their early adulthood, were protected against the onset of memory problems.
'Safe drug'
Dr Gary Arendash, who led the latest study, told the BBC: "The results are particularly exciting in that a reversal of pre-existing memory impairment is more difficult to achieve.
"They provide evidence that caffeine could be a viable 'treatment' for established Alzheimer's disease and not simply a protective strategy.
"That's important because caffeine is a safe drug for most people, it easily enters the brain, and it appears to directly affect the disease process."
The team now hope to begin human trials of caffeine to see if the mouse findings are replicated in people.
They do not know if a lower amount of caffeine would be as effective, but said most people could safely consume the 500 milligrams per day.
However they said people with high blood pressure, and pregnant women, should limit their daily caffeine intake.
Rebecca Wood, chief executive of the Alzheimer's Research Trust, said: "In this study on mice with symptoms of Alzheimer's, researchers found that caffeine boosted their memory. We need to do more research to find out whether this effect will be seen in people.
"It is too early to say whether drinking coffee or taking caffeine supplements will help people with Alzheimer's.
Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/2/hi/health/8132122.stm
Published: 2009/07/05 22:10:54 GMT
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