Researchers firmly believe that alcoholism is a complex behavior that draws from both environmental and genetic factors. A recent examination of families selected for their smoking behavior has identified the same region of chromosome four that was identified by earlier studies as being linked to the initiation of alcohol consumption. Results are published in the December issue of Alcoholism: Clinical & Experimental Research.
"It is commonly observed that people that drink also smoke and vice versa," explained Kirk C. Wilhelmsen, associate professor in the departments of genetics and neurology at the University of North Carolina as well as corresponding author for the study. "This suggested to us that families selected for smoking behavior would also have an increased incidence of drinking behavior."
"Twin studies of alcohol consumption have a long history and were the first to suggest the importance of genetic factors in alcohol use and alcoholism," added Gary E. Swan, director of the Center for Health Sciences at SRI International and also an author of the study. "The identification of linkages between specific genomic regions of interest and alcohol use and abuse is an area of science that has been active for about seven years. A consistent finding from these studies is the linkage between a region of chromosome four containing several genes that produce enzymes involved in the metabolism of alcohol and families with a high frequency of alcohol abuse."
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19.05.2017 | DOE/Los Alamos National Laboratory
Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.
Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...
An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...
In the race to produce a quantum computer, a number of projects are seeking a way to create quantum bits -- or qubits -- that are stable, meaning they are not much affected by changes in their environment. This normally needs highly nonlinear non-dissipative elements capable of functioning at very low temperatures.
In pursuit of this goal, researchers at EPFL's Laboratory of Photonics and Quantum Measurements LPQM (STI/SB), have investigated a nonlinear graphene-based...
Dental plaque and the viscous brown slime in drainpipes are two familiar examples of bacterial biofilms. Removing such bacterial depositions from surfaces is...
For the first time, scientists have succeeded in studying the strength of hydrogen bonds in a single molecule using an atomic force microscope. Researchers from the University of Basel’s Swiss Nanoscience Institute network have reported the results in the journal Science Advances.
Hydrogen is the most common element in the universe and is an integral part of almost all organic compounds. Molecules and sections of macromolecules are...
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22.05.2017 | Materials Sciences
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22.05.2017 | Physics and Astronomy