For years researchers have tried to determine why the French have such a lower rate of cardiovascular disease, given the amount of fat consumed in their diets. Red wine has been identified as one of the suspects in maintaining a healthy heart, but now a University of Missouri-Columbia researcher has found that alcohol, in moderation, from any source not only maintains a healthy heart, but can reduce the damage to affected tissue following a heart attack.
When a heart attack occurs, blood flow is reduced to several areas of the body. When the blood flow is restored, several processes take place in the body that actually cause more harm to the damaged tissue. When the blood supply is reestablished, the blood carries white blood cells to the areas damaged by the reduction in blood delivery. Unfortunately, these blood cells act like miniature hand grenades as they stick to the walls of the arteries and release toxic chemicals into the damaged tissues, causing additional cell death.
“Following a heart attack, physicians try to establish reperfusion, or normalize the blood flow in the body,” said Ron Korthuis, distinguished professor and chair of medical pharmacology and physiology. “The damaged tissues begin releasing a variety of molecules that attract the white blood cells to the damaged areas. When the white blood cells arrive, they attach to the adhesion molecules on the blood vessel walls and then start destroying the damaged tissue. One type of adhesion molecule that is affected by the alcohol ingestion is P-selectin”
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22.08.2017 | University at Buffalo
Whether you call it effervescent, fizzy, or sparkling, carbonated water is making a comeback as a beverage. Aside from quenching thirst, researchers at the University of Illinois at Urbana-Champaign have discovered a new use for these "bubbly" concoctions that will have major impact on the manufacturer of the world's thinnest, flattest, and one most useful materials -- graphene.
As graphene's popularity grows as an advanced "wonder" material, the speed and quality at which it can be manufactured will be paramount. With that in mind,...
Physicists at the University of Bonn have managed to create optical hollows and more complex patterns into which the light of a Bose-Einstein condensate flows. The creation of such highly low-loss structures for light is a prerequisite for complex light circuits, such as for quantum information processing for a new generation of computers. The researchers are now presenting their results in the journal Nature Photonics.
Light particles (photons) occur as tiny, indivisible portions. Many thousands of these light portions can be merged to form a single super-photon if they are...
For the first time, scientists have shown that circular RNA is linked to brain function. When a RNA molecule called Cdr1as was deleted from the genome of mice, the animals had problems filtering out unnecessary information – like patients suffering from neuropsychiatric disorders.
While hundreds of circular RNAs (circRNAs) are abundant in mammalian brains, one big question has remained unanswered: What are they actually good for? In the...
An experimental small satellite has successfully collected and delivered data on a key measurement for predicting changes in Earth's climate.
The Radiometer Assessment using Vertically Aligned Nanotubes (RAVAN) CubeSat was launched into low-Earth orbit on Nov. 11, 2016, in order to test new...
A study led by scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg presents evidence of the coexistence of superconductivity and “charge-density-waves” in compounds of the poorly-studied family of bismuthates. This observation opens up new perspectives for a deeper understanding of the phenomenon of high-temperature superconductivity, a topic which is at the core of condensed matter research since more than 30 years. The paper by Nicoletti et al has been published in the PNAS.
Since the beginning of the 20th century, superconductivity had been observed in some metals at temperatures only a few degrees above the absolute zero (minus...
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23.08.2017 | Life Sciences
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