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Commonly used diabetes drug may help to prevent primary liver cancer
Date:3/31/2012

Baltimore, MD March 31, 2012. Metformin, a drug widely used to treat Type II diabetes, may help to prevent primary liver cancer, researchers at the University of Maryland Marlene and Stewart Greenebaum Cancer Center report in the April 2012 issue of Cancer Prevention Research. Primary liver cancer, or hepatocellular carcinoma, is an often-deadly form of cancer that is on the rise worldwide and is the fastest-growing cause of cancer-related deaths among American men.

Patients with Type II diabetes have a two- to three-fold increased relative risk of developing primary liver cancer. Also at risk are people who are obese, have hepatitis or non-alcoholic fatty liver disease (NAFLD). Metformin, which is derived from the French lilac, is used to treat NAFLD as well as diabetes, and currently is being studied in connection with the prevention of a variety of cancers. This pre-clinical study is the first to focus on liver cancer.

"Our research demonstrated that metformin prevents primary liver cancer in animal models. Mice treated with metformin had significantly smaller and fewer tumors than those who did not receive the medication," says the study's senior author, Geoffrey D. Girnun, Ph.D., assistant professor of biochemistry and molecular biology at the University of Maryland School of Medicine and a research scientist at the University of Maryland Greenebaum Cancer Center. "Based on these findings, we believe metformin should be evaluated as a preventive agent in people who are at high risk. Many patients with diabetes already are taking this medication, with few side effects."

Dr. Girnun adds, "There have been several retrospective epidemiological studies linking metformin with reduced risk of liver cancer, but our study is the first to formally test whether metformin can protect against carcinogenesis not just tumor growth and development, but actual tumor formation in the liver." He says he will seek federal funding for a c
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Contact: Karen Warmkessel
kwarmkessel@umm.edu
410-328-8919
University of Maryland Medical Center
Source:Eurekalert

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