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Why binge drinking is bad for your bones
Date:10/23/2008

MAYWOOD, Il. -- Studies in recent years have demonstrated that binge drinking can decrease bone mass and bone strength, increasing the risk of osteoporosis.

Now a Loyola University Stritch School of Medicine study has found a possible mechanism: Alcohol disturbs genes necessary for maintaining healthy bones.

The findings could help in the development of new drugs to minimize bone loss in alcohol abusers. Such drugs also might help people who don't abuse alcohol but are at risk for osteoporosis.

"Of course, the best way to prevent alcohol-induced bone loss is to not drink or to drink moderately," said bone biologist John Callaci, PhD. "But when prevention doesn't work, we need other strategies to limit the damage."

Callaci is co-author of the study, published recently in the journal Alcoholism: Clinical and Experimental Research. He is an assistant professor in Stritch's Department of Orthopaedic Surgery and Rehabilitation.

Callaci's co-authors are Frederick Wezeman, PhD, professor in the Department of Orthopaedic Surgery and Rehabilitation and Ryan Himes, a research assistant in the Burn and Shock Trauma Institute.

The National Osteoporosis Foundation says that many people who abuse alcohol do not get enough calcium. Alcohol also can affect the body's calcium supply. And drinking too much can increase the risk of falls and broken bones. The foundation advises drinking no more than two drinks per day.

Loyola's Alcohol Research Program was among the first centers to demonstrate that rats given an amount of alcohol equivalent to binge drinking show significant decreases in bone mineral density and bone strength. (In humans, binge drinking is defined as a woman having at least four drinks or a man having at least five drinks in two hours.) But surprisingly little was known about the mechanisms responsible for these effects.

In the new study, researchers injected rats with an amount of al
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Contact: Jim Ritter
jritter@lumc.edu
708-216-2445
Loyola University Health System
Source:Eurekalert

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