Search Results for: mutations

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2,462 results

2,462 results for: mutations

  1. Genetics

    Liberia’s Ebola outbreak largely traced to one source

    Ebola’s spread and evolution in Liberia echoes patterns seen in Sierra Leone.

    By Tina Hesman Saey
  2. Health & Medicine

    Mutation regions mapped on genes that cause breast and ovarian cancer

    An analysis of mutated BRCA genes could someday be used for personalized medicine in the fight against breast and ovarian cancer.

    By Nathan Seppa
  3. Science & Society

    Links between scrapie and MS less likely

    Five decades later, scientists still puzzle over what causes multiple sclerosis.

    By Teresa Shipley Feldhausen
  4. Life

    Old stem cell barriers fade away

    Barrier that keeps aging factors out of stem cells breaks down with age.

    By Tina Hesman Saey
  5. Genetics

    Risk identified in procedure for ‘three-parent babies’

    Resurgent mitochondria could spell trouble for disease therapy.

    By Tina Hesman Saey
  6. Health & Medicine

    Parasite gives a man cancer

    Tapeworms can kick parasitism up a notch to become cancer, a case in Colombia shows.

    By Tina Hesman Saey
  7. Genetics

    Ancient DNA pushes back timing of the origin of dogs

    DNA extracted from the fossil of an ancient wolf indicates dogs and wolves diverged longer ago than previously thought.

    By Tina Hesman Saey
  8. Genetics

    Mosquitoes engineered to zap ability to carry malaria

    Researchers have created a gene drive that prevents mosquitoes from carrying malaria.

    By Tina Hesman Saey
  9. Health & Medicine

    Genetic tweak turned plague bacterium deadly

    Two genetic changes allowed plague bacteria to cause deadly lung infections and pandemic disease.

    By Sarah Schwartz
  10. Genetics

    Single exodus from Africa gave rise to today’s non-Africans

    Genetics and climate studies differ on when modern humans left Africa.

    By Tina Hesman Saey
  11. Genetics

    Ebola continues to shift, but grows no more fatal

    In the West African epidemic, Ebola evolved and spread quickly, but the virus is not becoming deadlier over time.

    By Sarah Schwartz
  12. Life

    Aging: Nature’s way of reducing competition for resources

    Aging may have developed in many species as a genetic mechanism to conserve future resources. If the controversial proposal is true, then scientists may be able to greatly extend life span by deactivating the machinery for aging embedded in our DNA.

    By Andrew Grant