日批在线视频_内射毛片内射国产夫妻_亚洲三级小视频_在线观看亚洲大片短视频_女性向h片资源在线观看_亚洲最大网

Hot dogs may cause genetic mutations


Updated: 2006-08-16 15:22
Large Medium Small
Everyone knows hot dogs aren't exactly healthy for you, but in a new study chemists find they may contain DNA-mutating compounds that might boost one's risk for cancer.

Hot dogs may cause genetic mutationsScientists note there is an up to 240-fold variation in levels of these chemicals across different brands.

"One could try and find out what the difference in manufacturing techniques are between the brands, and if it's decided these things are a hazard, one could change the manufacturing methods," researcher Sidney Mirvish, a chemist at the University of Nebraska Medical Center in Omaha, told LiveScience.

Mirvish and his colleagues examined hot dogs because past research had linked them with colon cancer. Hot dogs are preserved with sodium nitrite, which can help form chemicals known as N-nitroso compounds, most of which cause cancer in lab animals.

Extracts from hot dogs bought from the supermarket, when mixed with nitrites, resulted in what appeared to be these DNA-mutating compounds. When added to Salmonella bacteria, hot dog extracts treated with nitrites doubled to quadrupled their normal DNA mutation levels. Triggering DNA mutations in the gut might boost the risk for colon cancer, the researchers explained.

"I won't say you shouldn't eat hot dogs," Mirvish said. Future research will feed hot dog meat to mice to see if they develop colon cancer or precancerous conditions, he explained.

James Hodges, president of the American Meat Institute Foundation in Washington, noted this study is "a preliminary report that the author concedes requires further investigation. The carcinogenic risk to humans of the compounds studied has not been determined."

The possible hazard presented here is not just limited to hot dogs. Salted dried fish and seasonings such as soy sauce may contain similar levels of these chemicals, Mirvish said.

Mirvish and his colleagues reported their findings in the Journal of Agricultural and Food Chemistry.

主站蜘蛛池模板: 亚洲性图第一页 | 亚洲精品乱码久久久久久日本蜜臀 | 米奇7777狠狠狠狠视频 | 亚洲激情婷婷 | 成人在线免费观看网站 | 在线网站你懂的 | 国产亚洲精品久久久久久 | 日本视频精品 | 夜夜夜夜爽 | 国产69精品久久久久久久久久 | 91美女高潮出水 | 欧美另类视频在线观看 | 91看片看淫黄大片 | 日韩视频区 | 亚洲综合网站 | 裸体武打性艳史 | 九九热精品视频 | 久久视频免费在线 | 日韩欧美亚洲国产 | 亚洲精品男人天堂 | 九色综合网 | 四虎成人免费 | 亚洲啪啪精品 | 国产女主播福利 | 高清久久 | 99精品一区二区三区 | 欧洲一级黄色片 | 亚洲久久久久久 | 综合网伊人 | 天天操夜夜欢 | 国产一二区在线观看 | 日韩av片在线免费观看 | 免费中文字幕日韩 | 国产一区观看 | 日韩欧美中文字幕在线观看 | 天天撸夜夜操 | 超碰中国 | 岛国精品在线 | 欧美一级视频免费 | 在线免费av网站 | 亚洲日本精品 |