Study: coffee protects against Alzheimer’s

Posted Jun 29, 2011 by Martin Laine
More good news for coffee drinkers - researchers at a Southern Florida University have found that regular coffee drinking can help protect against the onset of Alzheimer’s disease. And it’s not just the coffee nor the caffeine, but a combination.
The study was published in this week’s edition of the Journal of Alzheimer’s disease. It is the latest in a recent series of studies showing a variety of positive health effects of coffee, including reducing the risk of diabetes and as a source for a beneficial antioxidant,
There has been some observational evidence that daily coffee drinking later in life. Other experiments have shown that caffeine inhibits the production of beta-amyloid, a protein thought to be a cause of Alzheimer’s.
In this latest study, mice were bred with symptoms similar to Alzheimer’s. Mice given caffeinated coffee developed higher levels granulocyte colony stimulating factor (GCSF) a growth hormone which has been found to be beneficial in treating Alzheimer’s.
“Caffeinated coffee provides a natural increase in blood GCSF levels,” said USF neuroscientist Dr. Chuanhai Cao, the lead author of the study. “The exact way that this occurs is not understood. There is a synergistic interaction between caffeine and some mysterious component of coffee that provides this beneficial increase in blood GCSF levels.”
In their experiment only caffeinated coffee showed this result. Neither caffeine alone for decaffeinated coffee had the same result.
The average American drinks 1.5 – 2 cups of coffee per day, but to enjoy the benefits would require drinking 4-5 cups per day, what the researchers regard as a safe, moderate amount.
“We do believe that moderate coffee consumption can appreciably reduce your risk of this dreaded disease or delay its onset,” Dr. Cao said.