In experiments in the laboratory and with mice, the Johns Hopkins researchers found that the chemical prostaglandin-E2 protects brain cells from damage. The finding was completely unexpected, the researchers say, because prostaglandin-E2 causes damage in other tissues and is made by an enzyme, COX-2, known to wreak havoc in the brain after injury. The findings appear in the Jan. 7 issue of the Journal of Neuroscience.
"Its kind of paradoxical, that the product of an enzyme that causes damage is itself beneficial," says Katrin Andreasson, M.D., an assistant professor of neurology and of neuroscience. "Its possible that future treatments for stroke might use drugs to block COX-2 and enhance the effects of prostaglandin-E2, providing sort of a double whammy of protection.
"Prostaglandins have not previously been implicated in reducing damage from stroke, so our finding provides a completely new strategy for tackling and understanding the condition," she adds.
The FiTS app now offering cooking videos as it expands its concept for long-term behavior modification
18.09.2018 | vitaliberty GmbH
The microbiota in the intestines fuels tumour growth
18.09.2018 | Technische Universität München
Thin-film solar cells made of crystalline silicon are inexpensive and achieve efficiencies of a good 14 percent. However, they could do even better if their shiny surfaces reflected less light. A team led by Prof. Christiane Becker from the Helmholtz-Zentrum Berlin (HZB) has now patented a sophisticated new solution to this problem.
"It is not enough simply to bring more light into the cell," says Christiane Becker. Such surface structures can even ultimately reduce the efficiency by...
A study in the journal Bulletin of Marine Science describes a new, blood-red species of octocoral found in Panama. The species in the genus Thesea was discovered in the threatened low-light reef environment on Hannibal Bank, 60 kilometers off mainland Pacific Panama, by researchers at the Smithsonian Tropical Research Institute in Panama (STRI) and the Centro de Investigación en Ciencias del Mar y Limnología (CIMAR) at the University of Costa Rica.
Scientists established the new species, Thesea dalioi, by comparing its physical traits, such as branch thickness and the bright red colony color, with the...
Scientists have succeeded in observing the first long-distance transfer of information in a magnetic group of materials known as antiferromagnets.
An international team of researchers has mapped Nemo's genome, providing the research community with an invaluable resource to decode the response of fish to...
Graphene is considered a promising candidate for the nanoelectronics of the future. In theory, it should allow clock rates up to a thousand times faster than today’s silicon-based electronics. Scientists from the Helmholtz Zentrum Dresden-Rossendorf (HZDR) and the University of Duisburg-Essen (UDE), in cooperation with the Max Planck Institute for Polymer Research (MPI-P), have now shown for the first time that graphene can actually convert electronic signals with frequencies in the gigahertz range – which correspond to today’s clock rates – extremely efficiently into signals with several times higher frequency. The researchers present their results in the scientific journal “Nature”.
Graphene – an ultrathin material consisting of a single layer of interlinked carbon atoms – is considered a promising candidate for the nanoelectronics of the...
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