Mayo Clinic researchers have identified a genetic syndrome -- an inherited birth disorder characterized by learning disabilities, facial malformations, impaired organs and mental retardation. It has been previously misdiagnosed or undiagnosed.
Researchers also discovered the syndromes genetic basis: a rearrangement of DNA called "microduplication." When microduplication occurs, DNA segments are repeated and this causes a surplus of genes. Microduplication is a little-studied mechanism underlying the origin of human diseases, and Mayo Clinic researchers are in the forefront of scientists producing evidence for its impact. Their work is made possible by the February 2001 completion of the federal Human Genome Project, the mapping of all the major genes in the human body. It has produced a database that describes the DNA sequences of the entire human complement of genes, which is estimated to be around 30,000 genes. The Mayo Clinic research, "Microduplication 22q11.2: An Emerging Syndrome," appears in the November American Journal of Human Genetics (73:1027-40)
Bob Nellis | EurekAlert!
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Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
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Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
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For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
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An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
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A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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