Showing results by author "Kate Baggaley"

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    • Stem Cells Can Help Heal Long-Term Brain Damage Suffered by Rats with Radiation

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 3 mins
    • Unabridged
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    Stem cells can help heal long-term brain damage suffered by rats blasted with radiation, researchers report in the Feb. 5 Cell Stem Cell. The treatment allows the brain to rebuild the insulation on its nerve cells so they can start carrying messages again.

    Regular price: $1.95

    • Snakes Crawled Among Jurassic Dinosaurs, New Timeline Shows

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    Just call it the Jura-sssss-ic Period. Newly identified fossils suggest that snakes slithered through much of the golden age of the dinosaurs, a finding that pushes back the fossil record for snakes by 70 million years.

    Regular price: $1.95

    • Molecule Impairs Brain Cells That Fail in Alzheimer's

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    A molecule on disease-fighting cells in the brain may be responsible for their failure to clear errant proteins in people with Alzheimer’s disease, a new study finds. Removing this molecule in mice allowed their cells to gobble up the culprit proteins more efficiently, and prevented mice susceptible to Alzheimer’s from developing memory problems as they aged

    Regular price: $1.95

    • Bipolar Risk Boosted by Accumulation of Rare Versions of Genes

    • By: Kate Baggaley 
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    A buildup of rare versions of genes that control the activity of nerve cells in the brain increases a person.s risk for bipolar disorder, researchers suggest.

    Regular price: $1.95

    • Pregnancy In Mammals Evolved with Help from Roving DNA

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    Roving pieces of DNA helped early mammals ditch egg-laying in favor of giving birth to live young. These “jumping genes,” or transposable elements, flipped the switch on thousands of genes, turning off ones that build hard eggshells and turning on ones that allow a fetus to develop in the uterus.

    Regular price: $1.95

    • Restoring Crop Genes to Wild Form May Make Plants More Resilient

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 5 mins
    • Unabridged
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    Restoring wild genes could make plants more resilient in tough environments.

    Regular price: $1.95

    • Signs of Sleep Debt Found in the Blood

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    A drop in certain fats and acids in the blood may reveal whether a person is critically sleep deprived, scientists report online February 9 in Proceedings of the National Academy of Sciences. When people and rats skimp on slumber, two compounds involved in metabolism become depleted.

    Regular price: $1.95

    • Tropical Plant Knows Whose Bill Is in its Flowers

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    Choosy shrub takes pollen only when the right hummingbird comes calling.

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    • Clean-up Gene Gone Awry Can Cause Lou Gehrig’s Disease

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    Mutations on a gene necessary for keeping cells clean can cause Lou Gehrig’s disease, scientists report online March 24 in Nature Neuroscience. The gene is one of many that have been connected to the condition.

    Regular price: $1.95

    • Scientists Find New Way to Corral Genetically Engineered Bacteria

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    Scientists have engineered a new way to genetically modify organisms so they’re less likely to spread uncontrollably in the wild and wreak havoc. By creating bacteria that require molecules not found in nature to survive, the scientists have set the stage for a safer way to use genetically modified bacteria to make medicines, fuels and other useful chemicals.

    Regular price: $1.95

    • Electrical Zap of Cells Shapes Growing Brains

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 3 mins
    • Unabridged
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    A little electricity goes a long way in shaping the growing brain. The electric charge across cell membranes directs many aspects of brain development, scientists report March 11 in the Journal of Neuroscience. Harnessing these charges could eventually allow scientists to fix birth defects or grow new tissue.

    Regular price: $1.95

    • For Heart Repair, Call RNA

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 2 mins
    • Unabridged
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    When people suffer a heart attack, they can’t regrow muscle cells that have died after being deprived of oxygen. But mice injected with small RNA molecules following heart attacks do regenerate cardiac muscle, researchers report in the March 18 Science Translational Medicine.

    Regular price: $1.95

    • Blame Pot Munchies on Nerve Cells That Normally Nix Appetite

    • By: Kate Baggaley 
    • Narrated by: Mark Moran
    • Length: 1 min
    • Unabridged
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    Potheads can blame their munchies on nerve cells that are supposed to keep them feeling full, scientists report.

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    • The Concrete Jungle

    • By: Kate Baggaley
    • Narrated by: Mark Moran
    • Length: 15 mins
    • Unabridged
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    Ecologists go urban to study the impact of creatures large and small.

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    • Brontosaurus Deserves Its Name, after All

    • By: Kate Baggaley 
    • Narrated by: Mark Moran
    • Length: 4 mins
    • Unabridged
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    After spending more than a century dismissed as a mislabeled Apatosaurus, Brontosaurus may be getting its identity back.

    Regular price: $1.95