As unlikely as it sounds, green tomatoes may hold the answer to bigger, stronger muscles.
Using a screening method that previously identified a compound in apple peel as a muscle-boosting agent, a team of University of Iowa scientists has now discovered that tomatidine, a compound from green tomatoes, is even more potent for building muscle and protecting against muscle atrophy.
Muscle atrophy, or wasting, is caused by aging and a variety of illnesses and injuries, including cancer, heart failure, and orthopedic injuries, to name a few. It makes people weak and fatigued, impairs physical activity and quality of life, and predisposes people to falls and fractures. The condition affects more than 50 million Americans annually, including 30 million people over age 60, and often forces people into nursing homes or rehabilitation facilities.
"Muscle atrophy causes many problems for people, their families, and the health care system in general," says Christopher Adams, M.D., Ph.D., UI associate professor of internal medicine and molecular physiology and biophysics. "However, we lack an effective way to prevent or treat it. Exercise certainly helps, but it's not enough and not very possible for many people who are ill or injured."
More muscle, less fat
In a new study, published online April 9 in the Journal of Biological Chemistry, Adams searched for a small molecule compound that might be used to treat muscle atrophy. He zeroed in on tomatidine using a systems biology tool called the Connectivity Map, which was developed at the Broad Institute of MIT and Harvard University. Adams discovered that tomatidine generates changes in gene expression that are essentially opposite to the changes that occur in muscle cells when people are affected by muscle atrophy.
After identifying tomatidine, Adams and his team tested its effects on skeletal muscle. They first discovered that tomatidine stimulates grow
|Contact: Jennifer Brown|
University of Iowa Health Care