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Dying Brain Cells Cue New Brain Cells to Grow in Songbird

Using a songbird as a model, scientists have described a brain pathway that replaces cells that have been lost naturally and not because of injury. If scientists can further tap into the process, it might lead to ways to encourage replacement of cells in human brains that have lost neurons naturally because of aging or Alzheimer's disease.

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EMBARGOED

A reporter's PressPass is required to access this story until the embargo expires on 25-Sep-2014 12:05 PM EDT

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Does Size Matter? MRI Measures of Joint's Geometry Suggest Role in Athletes' Severe Knee Injuries

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With only 200-300,000 per year, ACL injuries are far less common than ankle ligament injuries, which number more than two million annually. But ACL injuries can end sports careers and are proven to lead to the early onset of osteoarthritis, putting young athletes on track for joint replacement as early as their 30s. Vermont research provides insight into the potential role of the knee's geometric characteristics in increasing injury risk.

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Sir Roger Penrose Receives ‘Bhaumik Prize’ in Consciousness Research at Tucson Conference

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Laser pioneer rewards noted physicist for fundamental research on consciousness.

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Study Questions Accuracy of Lung Cancer Screens in Some Geographic Regions

A new analysis of published studies found that FDG-PET technology is less accurate in diagnosing lung cancer versus benign disease in regions where infections like histoplasmosis or tuberculosis are common. Misdiagnosis of lung lesions suspicious for cancer could lead to unnecessary tests and surgeries for patients, with additional potential complications and mortality.

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Lung Cancer Test Less Effective in Areas Where Infectious Lung Disease is More Common

An analysis of 70 studies finds that use of the diagnostic imaging procedure of fludeoxyglucose F18 (FDG)-positron emission tomography (PET) combined with computed tomography (CT) may not reliably distinguish benign disease from lung cancer in populations with endemic (high prevalence) infectious lung disease compared with nonendemic regions, according to a study in the September 24 issue of JAMA.

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Effect of Intervention, Removal of Costs, on Prenatal Genetic Testing

An intervention for pregnant women that included a computerized, interactive decision-support guide regarding prenatal genetic testing, and no cost for testing, resulted in less prenatal test use and more informed choices, according to a study in the September 24 issue of JAMA.

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Rate of Diabetes in U.S. May Be Leveling Off

Following a doubling of the incidence and prevalence of diabetes in the U.S. from 1990-2008, new data suggest a plateauing of the rate between 2008 and 2012 for adults, however the incidence continued to increase in Hispanic and non-Hispanic black adults, according to a study in the September 24 issue of JAMA.

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UW-Madison Team Developing ‘Tissue Chip’ to Screen Neurological Toxins

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A multidisciplinary team at the University of Wisconsin-Madison and the Morgridge Institute for Research is creating a faster, more affordable way to screen for neural toxins, helping flag chemicals that may harm human development.

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Asteroid Named for University of Utah

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What’s rocky, about a mile wide, orbits between Mars and Jupiter and poses no threat to Earth? An asteroid named “Univofutah” after the University of Utah.

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