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New Microchip Technology Performs 1,000 Chemical Reactions At Once
Flasks, beakers and hot plates may soon be a thing of the past in chemistry labs. Instead of handling a few experiments on a bench top, scientists may simply pop a microchip into a computer and instantly run thousands of chemical reactions, with results - literally shrinking the lab down to the size of a thumbnail.
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Work Status Changes More Common Among Women Receiving Chemotherapy For Breast Cancer, Study Says
Women with breast cancer who receive chemotherapy appear more likely than those treated with radiation therapy to experience a major change in work status, according to a study published in the journal Cancer, Reuters reports. For the study, Dana-Farber Cancer Institute researcher Michael Hassett and colleagues used a large health insurance claims database to identify 3,233 women who were first diagnosed with breast cancer between 1998 and 2002. All of the women were younger than age 64, insured, and working full time or part time as of diagnosis. About 54% of the women received chemotherapy, and 58% received radiation therapy.Hassett said that most of the women did "not experience a significant change in their employment after cancer diagnosis and treatment." However, of the 6.6% who experienced such a change, those who received chemotherapy had a 1.8-fold greater risk of leaving work, retiring or going on long-term disability leave in the subsequent year. Sixty-seven percent of women who experienced a change went from full-time employment to early retirement, while the rest went from full-time employment to long-term disability or retirement, or their status was unknown. Although the study looked at many factors, only chemotherapy and older age were associated with an increased likelihood of a change in employment. Hassett said that most of the participants in the study worked for large employers that offered health insurance. He added that further research is needed to evaluate the effect of cancer diagnosis and treatment on work status for women who are self-employed or work for smaller companies (Hendry, Reuters, 6/30).
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Researchers Working On How Gold Nanoparticles Illuminated With Laser Light May Be Able To Detect And Treat Cancer
At a technical breakfast, Romain Quidant presented his research into the detection and treatment of cancer using gold nanoparticles illuminated with laser light. Quidant, who was recently awarded the Fresnel Prize 2009 that recognizes the highest level of excellence amongst emerging researchers in the field of photonics, is an ICREA researcher at the UPC"s Institute of Photonic Sciences (ICFO) and a fellow of the Cellex Foundation Barcelona.
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First Evidence That Weed Killers Improve Nutritional Value Of A Key Food Crop

"Increase in Nutritionally Important Sweet Corn Kernel Carotenoids following Mesotrione and Atrazine Applications" Scientists are reporting for the first time that the use of weed killers in farmers" fields boosts the nutritional value of an important food a crop. Application of two common herbicides to several varieties of sweet corn significantly increased the amount of key nutrients termed carotenoids in the corn kernels, according to a study scheduled for publication in the July 22 issue of ACS" Journal of Agricultural and Food Chemistry, a bi-weekly publication. In the new study, Dean Kopsell and colleagues note that farmers grow about 240,000 acres of sweet corn in the United States each year, making it an important food crop. Corn is among only a few vegetable crops that are good s of zeaxanthin carotenoids. Consuming carotenoid-rich vegetables may reduce the risk of age-related macular degeneration (a leading cause of vision loss among older people), heart disease, and cancer, the study notes. The scientists exposed several varieties of sweet corn plants to the herbicide mesotrione or a combination of mesotrione and atrazine, another commonly used weed killer, and harvested mature corn 45 days later. Herbicide applications made the corn an even-better of carotenoids, boosting levels in the mature kernels of some varieties by up to 15 percent. It specifically increased levels of lutein and zeaxanthin, the major carotenoids in sweet corn kernels, which studies have linked to a reduced risk of age-related macular degeneration. Michael Woods American Chemical Society


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