Researchers of a study published in the latest issue of Environmental Toxicology and Chemistry tested the hypothesis that low doses of gamma radiation have beneficial effects. Researchers Rudy Boonstra, Richard G. Manzon, Steve Mihok, and Julie E. Helson found that low, chronic doses of gamma radiation produced apparent hormetic effects associated with an increase in longevity in natural populations of meadow voles.
Hormesis is defined as a phenomenon where low doses of an otherwise harmful agent can result in stimulatory or beneficial effects. This phenomenon has been observed in a broad range of chemicals including alcohol and its metabolites, antibiotics, hydrocarbons, herbicides, insecticides, and fungicides, as well as physical processes such as radiation exposure and caloric restriction.
Effects of hormesis have been observed in a wide range of organisms, from microbes and fungi to plants and animals. Hormetic responses are varied in form and include increased longevity; growth, reproductive, and physiological responses; and metabolic effects.
Study tracks inner workings of the brain with new biosensor
16.08.2018 | Rheinische Friedrich-Wilhelms-Universität Bonn
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Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
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16.08.2018 | Life Sciences
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16.08.2018 | Life Sciences