Gut Bacteria, Artificial Sweeteners, and Glucose Intolerance

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Artificial sweeteners have long been promoted as diet and health aids. But breaking research from the Weizmann Institute shows that these products may be leading to the very diseases they were said to help prevent: scientists have discovered that, after exposure to artificial sweeteners, our gut bacteria may be triggering harmful metabolic changes.

– Weizmann Institute of Science|17-Sep-2014 1:00 PM EDT

Modern Europeans Descended from Three Groups of Ancestors

New studies of ancient DNA are shifting scientists' ideas of how groups of people migrated across the globe and interacted with one another thousands of years ago. By comparing nine ancient genomes to those of modern humans, Howard Hughes Medical Institute (HHMI) scientists have shown that previously unrecognized groups contributed to the genetic mix now present in most modern-day Europeans.

– Howard Hughes Medical Institute (HHMI)|17-Sep-2014 1:00 PM EDT

Hubble Helps Find Smallest Known Galaxy with a Supermassive Black Hole

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Astronomers using data from NASA’s Hubble Space Telescope and ground observation have found an unlikely object in an improbable place -- a monster black hole lurking inside one of the tiniest galaxies ever known. The black hole is five times the mass of the one at the center of our Milky Way galaxy.

– Space Telescope Science Institute (STScI)|17-Sep-2014 1:00 PM EDT

Supermassive Blackhole Found in Dwarf Galaxy: Watch Video of Newswise Live Press Conference Event

This Hubble Space telescope image shows the gargantuan galaxy M60 in the center, and the ultracompact dwarf galaxy M60-UCD1 below it and to the right, and also enlarged as an inset. A new international study led by University of Utah astronomer Anil Seth and published in the journal Nature found that M60-UCD1 is the smallest known galaxy with a supermassive black hole at its center, suggesting the dwarf galaxy originally was much larger but was stripped of its outer layers by gravity from galaxy M60 over billions of years. M60’s gravity also is pulling galaxy NGC4647, upper right, and the two eventually will collide.

– Newswise|17-Sep-2014 1:00 PM EDT

Smallest Known Galaxy with a Supermassive Black Hole: Watch Video of Newswise Live Press Conference Event

A University of Utah astronomer and his colleagues discovered that an ultracompact dwarf galaxy harbors a supermassive black hole – the smallest galaxy known to contain such a massive light-sucking object. The finding suggests huge black holes may be more common than previously believed.

– University of Utah|17-Sep-2014 1:00 PM EDT

Large Study Reveals New Genetic Variants That Raise Risk for Prostate Cancer

In an analysis of genetic information among more than 87,000 men, a global team of scientists says it has found 23 new genetic variants – common differences in the genetic code -- that increase a man’s risk for prostate cancer. The so-called “meta-analysis,” believed to be the largest of its kind, has revealed once hidden mutations among men in a broad array of ethnic groups comprising men of European, African, Japanese and Latino ancestry.

– Johns Hopkins Medicine|17-Sep-2014 12:50 PM EDT

Math Model Designed to Replace Invasive Kidney Biopsy for Lupus Patients

Mathematics might be able to reduce the need for invasive biopsies in patients suffering kidney damage related to the autoimmune disease lupus.

– Ohio State University|17-Sep-2014 12:00 PM EDT

Physicists Heat Freestanding Graphene to Control Curvature of Ripples

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An international team of physicists, led by a research group at the University of Arkansas, has discovered that heating can be used to control the curvature of ripples in freestanding graphene.

– University of Arkansas, Fayetteville|17-Sep-2014 12:00 PM EDT
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