Anti-diabetic drug reduces the risk of Lung-CancerDiabetese

February 02, 2015 13:10
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An anti-diabetic drug, metformin, may lower lung cancer risk in diabetic nonsmokers, as per the new study. The research at the Kaiser Permanente Division of Research in Oakland, California, suggested that metformin may prevent cancer, but the data from human studies is not supporting the report and said conflicting information.

Metformin use was not actually associated with lowering lung cancer risk overall, however, the risk was 43 percent lower among diabetic patients who had never smoked and the risk appeared to decrease with longer use.

Nonsmokers who used metformin for five years or longer had a 52 percent reduction in lung cancer risk, but this finding was not statistically acceptable. Five or more years of metformin usage was associated with a 31 percent decrease in the risk for adenocarcinoma of lung, the most common type of lung cancer diagnosed in nonsmokers, and an 82 percent increase in the risk for small-cell carcinoma, a type of lung cancer often diagnosed in smokers, but neither of these findings was statistically significant.

In an interview, researcher Lori Sakoda said that metformin use was not associated with lung cancer risk when they looked at all patients with diabetes. Sakoda said that their results suggest that risk might differ by smoking history, with metformin decreasing risk among nonsmokers and increasing risk among current smokers, suggesting that the risk associated with metformin might differ by smoking history were unexpected.

Sakoda added that additional large, well-conducted studies are needed to clarify whether metformin may be used to prevent lung or other cancers, particularly in specific subpopulations, such as nonsmokers.

The study appears in Cancer Prevention Research, a journal of the American Association for Cancer Research.

Source: ANI


-Kannamsai

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