An independent clinical and laboratory study of more than 3000 people treated with the drug natalizumab (Tysabri®) for multiple sclerosis (MS), Crohns disease, and rheumatoid arthritis has found no evidence of new cases of the often-fatal disorder called progressive multifocal leukoencephalopathy (PML). The laboratory component of the study was coordinated by the National Institute of Neurological Disorders and Stroke (NINDS) at the National Institutes of Health (NIH), working in conjunction with the NIH Clinical Center. Clinical and neuroradiological experts from other institutions also participated. Results of the study will be published in the March 2, 2006, issue of the New England Journal of Medicine.*
Natalizumab, an immune system-modifying drug, was approved by the U.S. Food and Drug Administration in November 2004 to treat relapsing-remitting MS. Studies have shown that it can substantially reduce the frequency of relapses in that disease. However, the drug was withdrawn from the market and from clinical trials in February 2005 after the manufacturer identified 2 cases of PML in MS patients who had received the drug. A person with Crohns disease who had received natalizumab was also diagnosed with PML. The current study was conducted to determine whether other people treated with natalizumab were at risk of PML. Symptoms of PML include mental deterioration, problems with vision, speech, balance, and movement, and, in most cases, coma and death.
"This was an important opportunity for NIH to use its specialized expertise in cooperation with the private sector to address a pressing and unanticipated risk of a devastating disorder," said NIH Director Elias A. Zerhouni, M.D.
Natalie Frazin | EurekAlert!
TSRI researchers develop new method to 'fingerprint' HIV
29.03.2017 | Scripps Research Institute
Periodic ventilation keeps more pollen out than tilted-open windows
29.03.2017 | Technische Universität München
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
29.03.2017 | Materials Sciences
29.03.2017 | Physics and Astronomy
29.03.2017 | Earth Sciences