Professor Declan Naughton and Doctor Andrea Petróczi from Kingston University, South West London, carried out the study, using a formula developed by the United States’ Environmental Protection Agency for the estimation of potential health risks associated with long-term exposure to environmental pollutants.
This Target Hazard Quotient (THQ) gives an indication of risk based on published upper safe limits for various chemicals. A THQ below 1.0 is considered to be non-hazardous. According to Professor Naughton, “The THQ is a risk assessment designed to avoid underestimation. It therefore incorporates several assumptions, such as maximum absorption of ingested metal ions and lifetime exposures. In contrast, bolus dosing (e.g. binge drinking) and cross effects with other potential toxins (e.g. alcohol) are not accounted for, nor are the effects on the elderly, the young or those with a clinical condition”.
The authors found that THQ values for most wines were well above the value of 1.0 and thus are of concern. Typical potential maximum THQ values ranged from 50 to 200, with Hungarian and Slovakian wines reaching 300. THQ values for both red and white wines studied were high, having values ranging from 30 to 80 based on a 250mL glass per day. Naughton said, “These values are concerning, in that they are mainly above the THQ value of 1.0. Excess intake of metal ions is credited with pathological events such as Parkinson’s disease. In addition to neurological problems, these ions are also believed to enhance oxidative damage, a key component of chronic inflammatory disease which is a suggested initiator of cancer”.
These results also question a popular belief about the health-giving properties of red wine: that drinking red wine daily to protect from heart attacks is often related to levels of ‘anti-oxidants’. However the finding of hazardous and pro-oxidant metal ions creates a major question mark over these supposed protective benefits. The authors recommend that, “Levels of metal ions should appear on wine labels, along with the introduction of further steps to remove key hazardous metal ions during wine production”.
The genes are not to blame
20.07.2018 | Technische Universität München
Targeting headaches and tumors with nano-submarines
20.07.2018 | Universitätsmedizin der Johannes Gutenberg-Universität Mainz
A new manufacturing technique uses a process similar to newspaper printing to form smoother and more flexible metals for making ultrafast electronic devices.
The low-cost process, developed by Purdue University researchers, combines tools already used in industry for manufacturing metals on a large scale, but uses...
For the first time ever, scientists have determined the cosmic origin of highest-energy neutrinos. A research group led by IceCube scientist Elisa Resconi, spokesperson of the Collaborative Research Center SFB1258 at the Technical University of Munich (TUM), provides an important piece of evidence that the particles detected by the IceCube neutrino telescope at the South Pole originate from a galaxy four billion light-years away from Earth.
To rule out other origins with certainty, the team led by neutrino physicist Elisa Resconi from the Technical University of Munich and multi-wavelength...
For the first time a team of researchers have discovered two different phases of magnetic skyrmions in a single material. Physicists of the Technical Universities of Munich and Dresden and the University of Cologne can now better study and understand the properties of these magnetic structures, which are important for both basic research and applications.
Whirlpools are an everyday experience in a bath tub: When the water is drained a circular vortex is formed. Typically, such whirls are rather stable. Similar...
Physicists working with Roland Wester at the University of Innsbruck have investigated if and how chemical reactions can be influenced by targeted vibrational excitation of the reactants. They were able to demonstrate that excitation with a laser beam does not affect the efficiency of a chemical exchange reaction and that the excited molecular group acts only as a spectator in the reaction.
A frequently used reaction in organic chemistry is nucleophilic substitution. It plays, for example, an important role in in the synthesis of new chemical...
Optical spectroscopy allows investigating the energy structure and dynamic properties of complex quantum systems. Researchers from the University of Würzburg present two new approaches of coherent two-dimensional spectroscopy.
"Put an excitation into the system and observe how it evolves." According to physicist Professor Tobias Brixner, this is the credo of optical spectroscopy....
13.07.2018 | Event News
12.07.2018 | Event News
03.07.2018 | Event News
20.07.2018 | Power and Electrical Engineering
20.07.2018 | Information Technology
20.07.2018 | Materials Sciences