For children with attention deficit hyperactivity disorder (ADHD), possessing a variant of a gene involved in brain signaling may predict antisocial behavior and increase susceptibility to the effects of lower birth weight, according to a study in the November issue of Archives of General Psychiatry, one of the JAMA/Archives journals.
Biological processes play a key role in the genesis of antisocial behavior with specific evidence of brain involvement and contribution of genetic and early environmental risk factors, including prenatal factors, according to background information in the article. Given the links between deficits in a brain region called the prefrontal cortical and antisocial behavior and between the enzyme catechol O-methyltranferase (COMT) and prefrontal cortical functioning, the authors suggest that a variant of the COMT gene might be associated with antisocial behavior.
Anita Thapar, M.D., of Cardiff University, Cardiff, Wales, and colleagues looked for the presence of a variant in the COMT gene in 240 British children, aged five to 14 years with ADHD or hyperkinetic disorder who are at high risk for early-onset antisocial behavior. The researchers used the childrens birth weight as a marker for prenatal risk to determine the contribution of the environment to risk of developing symptoms of early-onset antisocial behavior.
Anita Thapar, M.D. | EurekAlert!
Multi-institutional collaboration uncovers how molecular machines assemble
02.12.2016 | Salk Institute
Fertilized egg cells trigger and monitor loss of sperm’s epigenetic memory
02.12.2016 | IMBA - Institut für Molekulare Biotechnologie der Österreichischen Akademie der Wissenschaften GmbH
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...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
Broadband rotational spectroscopy unravels structural reshaping of isolated molecules in the gas phase to accommodate water
In two recent publications in the Journal of Chemical Physics and in the Journal of Physical Chemistry Letters, researchers around Melanie Schnell from the Max...
The efficiency of power electronic systems is not solely dependent on electrical efficiency but also on weight, for example, in mobile systems. When the weight of relevant components and devices in airplanes, for instance, is reduced, fuel savings can be achieved and correspondingly greenhouse gas emissions decreased. New materials and components based on gallium nitride (GaN) can help to reduce weight and increase the efficiency. With these new materials, power electronic switches can be operated at higher switching frequency, resulting in higher power density and lower material costs.
Researchers at the Fraunhofer Institute for Solar Energy Systems ISE together with partners have investigated how these materials can be used to make power...
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