Cells infected by the deadly Ebola virus may release viral proteins such as VP40 packaged in exosomes, which, as new research indicates, can affect immune cells throughout the body impairing their ability to combat the infection and to seek out and destroy hidden virus. The potential for exosomal VP40 to have a substantial impact on Ebola virus disease is examined in a review article published in DNA and Cell Biology, a peer-reviewed journal from Mary Ann Liebert, Inc., publishers. The article is available free on the DNA and Cell Biology website until April 13, 2017.

Scientists looking for new tumor viruses have to keep an eye out for the virus genes rather than the viral particles. This year's winners of the Paul Ehrlich and Ludwig Darmstaedter Prize were twice successful with this strategy.

Two Americans, Yuan Chang and Patrick S. Moore, will receive the 2017 Paul Ehrlich and Ludwig Darmstaedter Prize today in Frankfurt's Paulskirche for their discovery of the tumor viruses HHV-8 and MCV by means of a clever subtraction strategy. HHV-8 is the human herpesvirus 8, and MCV stands for Merkel cell polyomavirus.  "With their decision to search for the viral genes rather than the viral particles, the prizewinners have taken a major step forward in the hunt for new human tumor viruses and have laid the foundation for further discoveries. The discovery of further human tumor viruses in future remains a distinct possibility," wrote the Scientific Council in substantiating its decision. One in every six cancers in the world is related to a viral infection However, the risk of cancer from a viral infection is lower in the Western industrial countries than in the developing world. Yuan Chang is Professor of Pathology at the University of Pittsburgh Cancer Institute. Patrick Moore is Professor and Director of the Cancer Virology Program at the University of Pittsburgh Cancer Institute. They are a wife and husband team.

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New research from DTU and partners from NASA’s Jet Propulsion Laboratory and the University of New Brunswick shows that eruptions on the Sun’s surface not only send bursts of energetic particles into the Earth’s atmosphere causing disturbances in our planet’s magnetic field, they can also strangely decrease the number of free electrons over large areas in the polar region of the ionosphere. Eruptions on the Sun’s surface, also called solar storms, trigger geomagnetic storms and this usually causes disturbances globally in the ionosphere and the magnetosphere, which is the region of the atmosphere governed primarily by the Earth’s magnetic field. Now new research shows that these eruptions on the sun’s surface not only send bursts of energetic particles into the Earth’s atmosphere causing disturbances in the magnetic field, but they may also significantly decrease the number of free electrons over large areas in the polar region of the ionosphere — the ionized part of the upper atmosphere.

Aquatic resistance training significantly decreases body fat mass and increases walking speed, i.e., phsyical function in postmenopausal women with mild knee osteoarthritis. The effect of aquatic resistance training on walking speed are long lasting and are maintained one-year after training is ceased. However, higher overall levels of leisure time physical activity are required for long-term management of fat and body mass. This was observed in the study carried out in the Faculty of Sport and Health Sciences at the University of Jyväskylä, Finland. This study investigated the effect of a 4-month intensive aquatic resistance training program as well as the association between overall leisure time physical activity on body composition and functional capacity in post-menopausal women with mild knee OA. This study was conducted in cooperation with the Central Finland Central Hospital, the Department of Medical Technology, Institute of Biomedicine in University of Oulu, Finland and the Department of Orthopaedics and Traumatology in University of Helsinki, Finland.

Jumping spider Phidippus mystaceus feeding on a tree-dwelling moth caterpillar (photo by David E. Hill, Peckham Society, Simpsonville, South Carolina)

It has long been suspected that spiders are one of the most important groups of predators of insects. Zoologists at the University of Basel and Lund University in Sweden have now shown just how true this is – spiders kill astronomical numbers of insects on a global scale. The scientific journal The Science of Nature has published the results. With more than 45,000 species and a population density of up to 1,000 individuals per square meter, spiders are one of the world’s most species-rich and widespread groups of predators. Due to their secretive lifestyle – many spiders are nocturnal or live well camouflaged in vegetation – it was previously difficult to demonstrate their ecological role, but zoologists at the University of Basel and Lund University (Sweden) have now used calculations to conclude that spiders indeed have an enormous ecological impact as natural enemies of insects.

The Yangtze Finless Porpoise is listed as critically endangered on the IUCN Red List of Threatened SpeciesTM. These animals are threatened by incidental catch, vessel collision, pollution, and habitat degradation. Photo: Huigong Yu

Freshwater megafauna such as river dolphins, crocodilians and sturgeons play vital roles in their respective ecosystems. In a recent scientific publication, researchers of the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) in Berlin have teamed up with international colleagues to illustrate the factors that currently threaten these large vertebrates. The authors also call for a more comprehensive assessment on these large freshwater animals and for a more targeted conservation plan. Also, a wider range of freshwater species and freshwater ecosystems suffering from biodiversity decrease have the potential to benefit from such megafauna-based actions.

In March 2017 the H2020 funded project BestRES celebrates its first year of implementation. The project aims to investigate the current barriers and to improve the role of Energy Aggregators in future electricity market designs. New renewable energy business models that allow aggregators to successfully participate in the market by combining different RES technologies, energy storage, and flexible demand will be assessed and improved. BestRES project will foster the full market integration of renewable energy sources. Renewable energy aggregators can significantly accelerate the integration of intermittent electricity sources, enhance demand flexibility and decrease the reliance on renewable energy support schemes.

University of Helsinki researchers have uncovered a novel gene associated with acute respiratory distress syndrome (ARDS) in dogs. The new research on this fatal disease may also help us understand the mechanisms of respiratory diseases in humans. A new genetic study has uncovered the cause of acute respiratory distress in Dalmatian dogs. ADRS has an early onset, with puppies or young dogs experiencing difficulty in breathing, which rapidly leads to death. The gene study used material which was previously collected at the University of Helsinki Veterinary Teaching Hospital as well as canine biobank samples.

Many mature oligos_red-myelin_green-oligodendrocyte cell

Queen’s University Belfast scientists have discovered that specific cells from the immune system are key players in brain repair – a fundamental breakthrough that could revolutionise the treatment of debilitating neurological disorders such as Multiple Sclerosis (MS). The research study, led by Dr Yvonne Dombrowski and Dr Denise Fitzgerald at the Wellcome-Wolfson Institute for Experimental Medicine at Queen’s University Belfast, is being hailed as a landmark study in unravelling the mysteries of how the brain repairs damage. This is crucial in the fight against MS, which affects 2.3 million people world-wide and over 4,500 people in Northern Ireland.

Many mature oligos_red-myelin_green-oligodendrocyte cell

Queen’s University Belfast scientists have discovered that specific cells from the immune system are key players in brain repair – a fundamental breakthrough that could revolutionise the treatment of debilitating neurological disorders such as Multiple Sclerosis (MS). The research study, led by Dr Yvonne Dombrowski and Dr Denise Fitzgerald at the Wellcome-Wolfson Institute for Experimental Medicine at Queen’s University Belfast, is being hailed as a landmark study in unravelling the mysteries of how the brain repairs damage. This is crucial in the fight against MS, which affects 2.3 million people world-wide and over 4,500 people in Northern Ireland.