Dopamine and serotonin, two neurotransmitters in the central nervous system, are intimately involved in muscle control, memory, sleep, and emotional behavior. They are also linked to illnesses such as Parkinson’s disease and mood disorders. Now, regulation of longevity may be added to this list.
Three natural variants in the gene for DOPA decarboxylase (DDC), an enzyme required for the production of dopamine and serotonin, together accounted for 15 percent of the genetic contribution to variation in life span among strains of the fruit fly Drosophila melanogaster, according to recent research by geneticists at North Carolina State University.
“This is a surprisingly large effect for a gene affecting a complex trait, such as longevity or body size, which is typically controlled by many genes with relatively small effects,” said Dr. Trudy Mackay, William Neal Reynolds Professor of genetics at NC State and director of the study. Results of the study appear in the paper “Dopa decarboxylase affects variation in Drosophila longevity,” published in the July 27 online edition of Nature Genetics.
Dr. Trudy Mackay | North Carolina State University
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Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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