Today’s Headlines: Breast Cancer, Modified Corn and Tuberculosis

High cholesterol may ‘fuel’ the growth and spread of breast cancer: A byproduct of cholesterol breakdown called 27HC may act like estrogen and could potentially “foster the growth and spread of cancer cells,” a new study published in the journal Science reported. The researchers found that mice who ate high fat diets had increased 27HC and grew tumors that were “30 percent larger than those in mice eating a normal diet.” Tumors in mice injected with 27HC were also more likely to spread. The researchers suggest that controlling cholesterol with medication and diet may help “prevent the spread of deadly diseases like breast cancer.” (Fox News

Journal retracts study tying genetically modified corn to rat cancer: “The publisher of a controversial and much-criticized study suggesting genetically modified corn caused tumors in rats has withdrawn the paper after a year-long investigation found it did not meet scientific standards.” The study, by French researcher Gilles-Eric Seralini was published in Reed Elsevier’s Food and Chemical Toxicology journal in September of 2012. The journal said the retraction was because “the study’s small sample size meant no definitive conclusions could be reached” and that while the results were not “incorrect,” they were “inconclusive.” (NBC News)

Phoenix flight passengers told to get precautionary tuberculosis test: Passengers on a US Airways flight have been told to get tuberculosis tests after a passenger with possible active tuberculosis was removed from a plane in Phoenix. Public health authorities are “still conducting tests to determine if the passenger was ill.” A US Airways representative “told reporters that the passenger had been cleared to fly when he boarded in Austin, but his status was changed to ‘no-fly’ while the plane was in the air.” About 70 passengers were on the plane and are being advised to see their physicians. Tuberculosis is a contagious disease that mainly infects the lungs and can be deadly. (Los Angeles Times)