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A New Take On Growth Factor Signaling In Tamoxifen Resistance
Differences in growth factor (GF) signaling may cause the poor prognosis in some breast cancer cases. A new study, published in the open access journal BMC Medical Genomics, suggests that some estrogen receptor-positive breast cancers respond poorly to tamoxifen because of increased GF signaling.
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Inoperable Colon Cancer Responds To New Treatment
With an extensive, inoperable colon cancer and few options available, a Tennessee patient is seeing his cancer steadily regressing on a new outpatient treatment. Individuals from 26 U.S. states and four other countries have been among the first to use NeoPlas Innovation"s new protocol. The Tennessee patient"s early results mirror their successes in battling colon cancer and other very aggressive malignancies.
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ACSM Calls For National Policy Adoption For Concussion In Youth Sports
A national guideline that young athletes suspected of sustaining a concussion or head injury in practice or games be removed from competition until examined or cleared by a medical professional is at the heart of a multi-organizational call-to-action announced today at the American College of Sports Medicine (ACSM) 56th Annual Meeting in Seattle. ACSM is collaborating with the Brain Injury Association of Washington (BIAWA) and the U.S. Centers for Disease Control and Prevention (CDC) to build national momentum on a new Washington state law protecting young athletes from death or disability caused by premature return to play following a concussion.
Public Health

Bird Flu Virus Remains Infectious Up To 600 Days In Municipal Landfills

Amid concerns about a pandemic of swine flu, researchers from Nebraska report for the first time that poultry carcasses infected with another threat - the "bird flu" virus - can remain infectious in municipal landfills for almost 2 years. Their report is scheduled for the June 15 issue of ACS" semi-monthly journal Environmental Science & Technology. Shannon L. Bartelt-Hunt and colleagues note that avian influenza, specifically the H5N1 strain, is an ongoing public health concern. Hundreds of millions of chickens and ducks infected with the virus have died or been culled from flocks worldwide in efforts to control the disease. More than 4 million poultry died or were culled in a 2002 outbreak in Virginia, and the carcasses were disposed of in municipal landfills. Until now, few studies have directly assessed the safety of landfill disposal. "The objectives of this study were to assess the survival of avian influenza in landfill leachate and the influence of environmental factors," says the report. The data showed that the virus survived in landfill leachate - liquid that drains or "leaches" from a landfill - for at least 30 days and up to 600 days. The two factors that most reduced influenza survival times were elevated temperature and acidic or alkaline pH. "Data obtained from this study indicate that landfilling is an appropriate method for disposal of carcasses infected with avian influenza," says the study, noting that landfills are designed to hold material for much longer periods of time. American Chemical Society


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