Insights gained from extensive studies in mice may someday lead to treatments for comparable neurodegenerative diseases in humans
Scientists at Jefferson Medical College and the University of Michigan have uncovered a gene defect responsible for a muscle-wasting, neurodegenerative disease in mice known as mnd2. Their results may provide insights into the molecular origins of other such diseases in humans, including Parkinson’s disease.
In an online report on October 8 in the journal Nature, the researchers, led by Emad Alnemri, Ph.D., at Jefferson Medical College of Thomas Jefferson University in Philadelphia, and Miriam Meisler, Ph.D., at the University of Michigan in Ann Arbor, showed that a mutation in a single amino acid in the protein Omi/HtrA2 is enough to cause the neuromuscular disease. In mnd2 mice, the amino acid serine is changed to cysteine.
Steven Benowitz | TJUH
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MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
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Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
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The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
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With innovative experiments, researchers at the Helmholtz-Zentrums Geesthacht and the Technical University Hamburg unravel why tiny metallic structures are extremely strong
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