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E.g., 12/17/2017
E.g., 12/17/2017
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Your search has returned 219 articles:
  • News in Brief

    Mini brains may wrinkle and fold just like ours

    PHILADELPHIA — Flat brains growing on microscope slides may have revealed a new wrinkle in the story of how the brain folds.

    Cells inside the brains contract, while cells on the outside grow and push outward, researchers at the Weizmann Institute of Science in Rehovot, Israel, discovered from working with the lab-grown brains, or organoids. This push and pull results in folds in the...

    12/12/2017 - 07:00 Cells, Neuroscience
  • News

    Not all of a cell’s protein-making machines do the same job

    PHILADELPHIA — Protein-manufacturing factories within cells are picky about which widgets they construct, new research suggests. These ribosomes may not build all kinds of proteins, instead opting to craft only specialty products.

    Some of that specialization may influence the course of embryo development, developmental biologist and geneticist Maria Barna of Stanford University School of...

    12/12/2017 - 07:00 Cells, Genetics
  • News in Brief

    When tumors fuse with blood vessels, clumps of breast cancer cells can spread

    PHILADELPHIA — If you want to beat them, join them. Some breast cancer tumors may follow that strategy to spread through the body.

    Breast cancer tumors can fuse with blood vessel cells, allowing clumps of cancer cells to break away from the main tumor and ride the bloodstream to other locations in the body, suggests preliminary research. Cell biologist Vanesa Silvestri of Johns Hopkins...

    12/08/2017 - 11:42 Cancer, Cells
  • News

    Testosterone may be one reason why men don’t get asthma as much as women

    Testosterone may tamp down asthma caused by inhaling pollen, dust or other airborne allergens. That’s partly why more women suffer from the lung disease than men, new research suggests.

    The male sex hormone acts on a group of immune cells that are part of the first line of the body’s defense against invaders. These cells are thought to kick-start inflammation in the lungs, which causes...

    11/28/2017 - 17:32 Health, Cells, Immune Science
  • Science Visualized

    See these first-of-a-kind views of living human nerve cells

    The human brain is teeming with diversity. By plucking out delicate, live tissue during neurosurgery and then studying the resident cells, researchers have revealed a partial cast of neural characters that give rise to our thoughts, dreams and memories. 

    So far, researchers with the Allen Institute for Brain Science in Seattle have described the intricate shapes and electrical properties...

    11/09/2017 - 07:00 Neuroscience, Cells
  • News

    Scientists replaced 80 percent of a ‘butterfly’ boy’s skin

    In a last-ditch effort to save a dying 7-year-old boy, scientists have used stem cells and gene therapy to replace about 80 percent of his skin.

    This procedure’s success demonstrates that the combination therapy may be effective against some rare genetic skin disorders. The study also sheds light on how the skin replenishes itself, researchers report November 8 in Nature.

    In 2015,...

    11/08/2017 - 13:35 Genetics, Cells, Biomedicine
  • Feature

    Luhan Yang strives to make pig organs safe for human transplants

    Luhan Yang, 31BiologisteGenesis

    Biologist Luhan Yang dreams of pig organs that will one day fly — into people. If she has her way, animal farms will raise herds of bioengineered pigs, designed to produce kidneys, livers and other organs that could be transplanted into humans. Animal parts would slip seamlessly into people, easing their suffering.

    “There are millions of patients worldwide...

    10/04/2017 - 13:44 Biomedicine, Cells, Genetics
  • News

    Cracking the body clock code wins trio a Nobel Prize

    Discoveries about the molecular ups and downs of fruit flies’ daily lives have won Jeffrey C. Hall, Michael Rosbash and Michael W. Young the Nobel Prize in physiology or medicine.

    These three Americans were honored October 2 by the Nobel Assembly at the Karolinska Institute in Stockholm for their work in discovering important gears in the circadian clocks of animals. The trio will...

    10/02/2017 - 17:22 Physiology, Genetics, Cells
  • News

    Gene variant linked to Alzheimer’s disease is a triple threat

    A genetic risk factor for Alzheimer’s disease is a double, make that triple, whammy.

    In addition to speeding up the development of brain plaques associated with Alzheimer’s, a gene variant known as APOE4 also makes tau tangles — another signature of the disease — worse, researchers report online September 20 in Nature. APOE4 protein also ramps up brain inflammation that kills brain cells...

    09/22/2017 - 09:00 Neuroscience, Genetics, Cells
  • News

    Gene editing of human embryos gets rid of a mutation that causes heart failure

    For the first time in the United States, researchers have used gene editing to repair a mutation in human embryos.

    Molecular scissors known as CRISPR/Cas9 corrected a gene defect that can lead to heart failure. The gene editor fixed the mutation in about 72 percent of tested embryos, researchers report August 2 in Nature. That repair rate is much higher than expected. Work with skin...

    08/02/2017 - 13:00 Genetics, Cells, Science & Society