Health

Strong oral carcinogen identified in smokeless tobacco

The chemical (S)-N'-nitrosonornicotine, or (S)-NNN, which is present in smokeless tobacco products, is a strong oral carcinogen, according to results presented at the AACR Annual Meeting 2012, held here March 31 - April 4.

Medical research

Newly found protein helps cells build tissues

As they work together to form body parts, cells in developing organisms communicate like workers at a construction site. The discovery of a new signaling molecule in flies by Brown University biologists not only helps explain ...

Obstetrics & gynaecology

Study finds no evidence linking anti-nausea drug to birth defects

Women suffering from extreme morning sickness often take Zofran (ondansetron) to combat their debilitating nausea and vomiting. However, two studies have found that the drug may increase risk of heart defects and cleft palate ...

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