Medical scientists at the University of Leicester have announced they have narrowed the search for the death clock gene in humans. Their study relates to a hunt for a gene that has important implications for aging and cancer as well as other age-related diseases.
The gene controls the length of human telomeres - repeat DNA sequences that cap a chromosome. Each time a human cell divides, the cap shortens. When it gets too short, cells die. Telomere length therefore acts as a death clock
People vary considerably in the length of telomeres they are born with.
The Leicester team, comprising members of the Department of Cardiovascular Sciences, Health Sciences and Genetics linked inter-individual differences in telomere length to a region on Chromosome 12 and identified what they describe as a strong candidate for the death clock gene. To help locate the gene, the Leicester researchers examined 383 adults comprising 258 sibling pairs.
Ather Mirza | alfa
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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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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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