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Saturday, April 21, 2018

Greenland fossils reveal global ecosystem recovery after mass extinction

A new study shows how higher latitude ecosystems recovered after the World's most cataclysmic extinction event 252 million years ago.

Evolution purged many Neanderthal genes from human genome

Larger populations allowed humans to shed weakly deleterious gene variants that were widespread in Neanderthals, new research indicates.

Twenty percent of children with Celiac disease do not heal on a gluten-free diet

Even after a year on a gluten-free diet, nearly 20 percent of children with celiac disease continue to have intestinal abnormalities (enteropathy) on repeat biopsies, reports a study.

Early study finds antibody that ‘neutralizes’ Zika virus

Researchers have isolated a human monoclonal antibody that in a mouse model "markedly reduced" infection by the Zika virus, report scientists. Zika is believed to cause microcephaly, unusually small heads, and other congenital malformations in children born to infected women.

New coral research exposes genomic underpinnings of adaptation

Scientists have observed for the first time that separate populations of the same species -- in this case, coral -- can diverge in their capacity to regulate genes when adapting to their local environment. The research reveals a new way for populations to adapt that may help predict how they will fare under climate change.

Gut microbes linked to immunotherapy response in melanoma patients

Patients with malignant melanoma - whose disease has spread - are more likely to respond to immunotherapy treatment if they had greater diversity in their gut bacteria, according to new research.

Salamander research may lead to new strategies to treat infertility

Some animals, such as the axolotl salamander, have the ability to generate large numbers of eggs-or oocytes-throughout life. Investigators who recently conducted detailed analyses of the axolotl provide insights on the mechanisms of ovarian regeneration that could assist regenerative medicine in treating pre-mature ovarian failure and reduced fertility in humans.

Researchers unravel viruses’ strategies to dodge immune systems

As mammals evolve, so do mammalian viruses. In doing so, they develop creative and effective ways to counter and evade the antiviral responses of their mammal hosts’ immune systems. Researching those mechanisms at the molecular level can reveal key insights into the principles of such strategies relevant to therapy development. An international team of scientists set out to do just that.

Multidrug-resistant bacteria from chickens pose risk to human health

Isolates of a common poultry pathogen collected from animals in Indian bird markets were found to be mostly resistant to multiple classes of antibiotics. The study provides the first data on prevalence and isolation of Helicobacter pullorum in India.

Yesterday’s Silk Road could be tomorrow’s environmental superhighway

While China is building a gigantic modern-day upgrade of the famed ancient Silk Road resplendent in global cooperation in the name of economic expansion, a group of sustainability scholars point out that the Belt and Road Initiative (B&R) also could be a superhighway of environmental progress.

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Lo que se sabe de la misteriosa muerte de Avicii, el DJ sueco que...

Su temprana partida en circunstancias desconocidas en Mascate, donde se encontraba de vacaciones con unos amigos, ha levantado sospechas sobre las posibles causas detrás de su fallecimiento. La policía de Omán asegura que no hay ninguna evidencia de que se trate de un crimen. Fuente: bbcmundo.com

N. Korea stops short of suggesting any intention of giving up nuclear arsenal

Country's suspension of nuclear, missile tests​ gives best idea yet of what Kim intends to bring with him in summits with Moon and Trump

Iran open to prisoner swap if US has ‘change of attitude’

Margaret Brennan’s interview with Mohammad Javad Zarif airs Sunday on ‘Face the Nation’