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Three Surgeons In East Texas Are Successfully Integrating A Novel Stem Cell Procedure For Spine Surgeries
A new breakthrough in adult stem cell technology has three Texarkana neurosurgeons leading their industry by utilizing concentrated stem cells for spine surgery. The innovative technique is improving the desired results of surgical interventions for back pain. Leading researchers in the orthopedic and spine industry are predicting the latest developments in this field of medicine will become mainstream practice and, potentially, a standard of care for surgical treatments of severe back pain.
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They Are Young And Need The Job: A Second Chance For Dangerous T-cells
The immune system"s T-cells react to foreign protein fragments and therefore are crucial to combating viruses and bacteria. Errant cells that attack the body"s own material are in most cases driven to cell death. Some of these autoreactive T-cells, however, undergo a kind of reeducation to become "regulatory T-cells" that keep other autoreactive T-cells under control. A group led by immunologist Professor Ludger Klein of LMU Munich has now shown that the developmental stage of an autoreactive T-cell is decisive to its ultimate destiny. Young autoreactive T cells are very readily reeducated into regulatory T-cells. Under identical conditions, however, older T cells become fully activated and can cause damage they are in a way resistant to reeducation. "We now intend to study at the molecular level what makes a T-cell accessible for reeducation," said Klein, "because then it may be possible to convert even normal adult T-cells, which can be obtained easily and in great numbers from blood. Possibly, they could then be used as regulatory T-cells in therapies for autoimmune diseases such as type-1 diabetes or multiple sclerosis: these are diseases that are triggered by uncontrolled autoreactive T-cells." (PNAS, 10 June 2009)
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Employee Involvement Programs Key To Workplace Diversity
A new study by a University of Arizona professor shows employee involvement programs that executives adopt to increase efficiency also end up improving their record on diversity.
Medical Devices

Even At High Doses, Gadolinium-Based Contrast Agents Cannot By Themselves Cause Patients To Develop Nephrogenic Systemic Fibrosis

Even at very high doses, gadolinium-based contrast agents alone are not sufficient to cause nephrogenic systemic fibrosis (NSF) in patients with kidney problems, according to a study performed at the Mayo Clinic Florida, Jacksonville, FL. NSF is a rare and serious syndrome that leads to fibrosis of the skin, joints and even internal organs. Some research indicates NSF is caused by gadolinium-based contrast agents that are commonly used today during MR procedures. The study examined the records of 61 patients. "Our patients had been given high doses from two to ten times the usual MRI dose. These high doses were used because the patients were undergoing interventional procedures and the procedures were done before there were any reports linking gadolinium to NSF," said Mellena D. Bridges, MD, lead author of the study. "Fortunately, one of these patients, a 58-year-old diabetic man with end-stage kidney disease and significant blood vessel blockages, developed NSF. Gadolinium seems to be necessary to trigger NSF, but it doesn"t seem to be enough to cause the disease, even at very high doses," said Dr. Bridges. This study appears in the June issue of the American Journal of Roentgenology. About ARRS The American Roentgen Ray Society (ARRS) was founded in 1900 and is the oldest radiology society in the United States. Its monthly journal, the American Journal of Roentgenology, began publication in 1906. Radiologists from all over the world attend the ARRS annual meeting to participate in instructional courses, scientific paper presentations and scientific and commercial exhibits related to the field of radiology. The Society is named after the first Nobel Laureate in Physics, Wilhelm Rē¶entgen, who discovered the x-ray in 1895. American Roentgen Ray Society (ARRS)


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