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Additives in hot dogs may not cut incidences of colon cancer


October 25, 2011 - Washington

It was mandated that that amount of nitrite in hot dogs should be reduced, as it was believed that the compound could cause Colon cancer.

Since the directives in 1978, ascorbate (vitamin C) or its close relative, erythorbate, are added to reduce the amount of nitrite in processed meat used in hot dogs.

But a new study has refuted the role of hot dog-derived N-nitroso compounds in Colon cancer.

Though there is a steep drop in the death rate from Colon cancer after the enforcement of the directives, the incidence rate for the disease has apparently not changed much since 1978, according to 2011 data from the SEER Cancer Statistics Review from the National Cancer Institute.

"It was proposed that N-nitroso compounds in hot dogs and other processed meats can cause Colon cancer," said Sidney S. Mirvish, Ph.D., professor emeritus at the Eppley Institute for Research in Cancer and Allied Diseases at the University of Nebraska Medical Centre in Omaha.

Mirvish and colleagues discussed the view that Colon cancer was induced by components of the apparent nonvolatile N-nitroso compounds that occur in processed (nitrite-preserved) meat.

If the level of N-nitroso compounds was an important cause of Colon cancer, "the drop in N-nitroso compound content caused by the mandated changes in processed meat should have been accompanied by a drop in the incidence of colon cancer," said Mirvish.

In fact, since the mandated changes were introduced 33 years ago, the death rate for Colon cancer has dropped sharply.

"This may have been due mostly to earlier detection and better treatment of this disease," he claimed.

Mirvish concluded that the role of hot dog-derived N-nitroso compounds in the causation of Colon cancer remains unclear.

The findings were reported at the 10th AACR International Conference on Frontiers in Cancer Prevention Research, held Oct. 22-25, 2011.

ANI

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