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Lung Cancer Alliance Releases Updated 2009 Facts About Lung Cancer
Lung Cancer Alliance (LCA) released its updated 2009 Facts About Lung Cancer illustrating again the devastating toll caused by lung cancer. LCA last released its Fact Sheet in 2008.
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California Gov. Schwarzenegger's Plan To Reduce State Spending Includes Cuts To HIV/AIDS Services
California Gov. Arnold Schwarzenegger (R) on Tuesday sent state lawmakers a plan to reduce more than $5 billion in spending that includes cuts to HIV/AIDS services, the Los Angeles Times reports (Rothfeld/McGreevy, Los Angeles Times, 5/27). The proposed cuts include $55.5 million in California"s AIDS Drug Assistance Program and other state Office of AIDS programs. According to the San Francisco Chronicle, Schwarzenegger"s plan would make HIV-positive people pay more for drugs, while HIV/AIDS programs such as counseling, monitoring and education would be reduced or eliminated. "We were expecting cuts, but this is much, much worse than what we were expecting," Courtney Mulhern-Pearson, policy and legislative associate for the San Francisco AIDS Foundation, said (Yi, San Francisco Chronicle, 5/27). Tuesday"s plan follows a separate proposal to cut $16 billion in overall state spending that Schwarzenegger announced two weeks ago. Aides say that Schwarzenegger plans to propose an additional $3 billion in reductions by the end of the week to offset a projected $24.3 billion budget shortfall. "Behind every one of these dollars that we cut there are real faces," Schwarzenegger said, adding, "Even though those are tough choices, what is the alternative?" (Los Angeles Times, 5/27).
News of the day
The Cost Of Autism In The UK Is More Than $41 Billion Every Year
Research published this week in the journal Autism, published by SAGE, estimate the annual costs of autism spectrum disorder (ASD) to be more than ÷£27 billion a year. The costs of supporting children with ASDs were estimated to be ÷£2.7 billion per year, ÷£25 billion each year for adults. The findings were presented at the Autism & Employment Workshop at Goldsmiths, University of London.
Oncology

Continued Promise In Colon Cancer Screening Technique Shown By New Study

Recent clinical trials show that a new colon cancer screening technique created by Northwestern University researchers has a high enough sensitivity that it could potentially be as or more successful than a colonoscopy in screening for colon cancer. The technique uses optical technology, called low-coherence enhanced backscattering (LEBS) spectroscopy, to analyze tissue samples taken from the base of the rectum. Light shines on the tissue, scatters, and some of that light bounces back to sensors in the probe. A computer analyzes the pattern of light scattering, looking for the "fingerprint" of carcinogenesis in the nanoarchitecture of the cells. Researchers led by Vadim Backman, professor of biomedical engineering at the McCormick School of Engineering and Applied Science, obtained biopsies from patients undergoing colonoscopies and found that LEBS could detect the presence of growths elsewhere in the colon even though it just analyzed tissue from the base of the rectum. The results were recently published in the journal Cancer Research. Clinical trials have been conducted in collaboration with Hemant Roy, M.D., director of gastroenterology research at NorthShore University HealthSystem. The study is a step toward clinical application of the technology, since it used tissue samples near the location where doctors may ultimately use a probe to test technology. "If you have a precancerous lesion in one part of the colon," said Backman, "even tissue that looks normal and is located far from the lesion or polyp will have molecular and other kinds of changes. It"s the biological phenomenon called the "field effect." No one can detect these changes earlier than we can." The study examined tissue from 219 patients. Results showed that for advanced polyps, the test had a sensitivity of 100 percent, which means that 100 percent of patients who had polyps were correctly identified as having them. The larger number of patients in the more recent study allowed researchers to calculate the "area under the receiver operator characteristic" (AUROC), which is an analysis of the accuracy of the test in distinguishing healthy samples from diseased samples. While the sensitivity and specificity of tests may vary based on the threshold set by researchers for diagnosis, the AUROC measures the overall efficacy of the diagnostic technique. The analysis showed an 89.5 percent AUROC for the technique. (Clinically sound tests typically have an AUROC greater than 70 percent.) The study provides a proof of concept that this sort of analysis could be a minimally intrusive colon cancer screening technique. Further studies with a compatible fiber optic probe are under way for multicenter clinical validation. The work builds on previous success in using a suite of optical technologies to detect both colon and pancreatic cancer. Along with Backman and Roy, other authors of the paper are Vladimir Turzhitsky, Young Kim, Michael Goldberg, Patrice Wilson, Jeremy Rogers, Andrew Gomes, Alexey Kromine, Randall Brand, Mohammed Jameel, Andrej Bogovejic and Prabhakar Pradhan. The research was funded by the National Institutes of Health and the National Science Foundation. Kyle Delaney Northwestern University


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