Christen Brownlee

All Stories by Christen Brownlee

  1. Health & Medicine

    Protein interacts with hormone that quells hunger

    A protein that's more abundant in the blood of obese people inactivates leptin, a hormone that controls hunger.

  2. Sleeper Finding: Hormone key to hibernation?

    A recently discovered hormone may play a major role in triggering and maintaining hibernation.

  3. Health & Medicine

    See Blind Mice: Algae gene makes sightless eyes sense light

    Scientists have prompted mouse-eye cells that aren't normally light sensitive to respond to light.

  4. Health & Medicine

    Parasite can’t survive without its tail

    The protozoan that causes African sleeping sickness can't survive in the mammalian bloodstream without its long, whiplike tail.

  5. Pigging Out Healthfully: Engineered pork has more omega-3s

    Scientists have created pigs that sport much higher concentrations of omega-3 fatty acids in their tissues than normal pigs do.

  6. Thugs and Bugs

    With some laboratory detective work, scientists are discovering how various pathogens interact with their targets.

  7. Materials Science

    Networking with Friends: Nanotech material reconnects severed neurons

    A new material made of nanometer-sized protein particles appears to be able to bridge the gap between severed nerves.

  8. Plants

    Small difference factored big in rice domestication

    A change in a single letter of a rice plant's genetic code gave it the ability to hold onto grains until harvest.

  9. Health & Medicine

    May I Propose a High-Fiber Toast?

    Scientists have genetically modified wheat to boost a type of dietary fiber linked to numerous health benefits.

  10. Fit Moms, Brainier Babies: Exercising mothers provide neurological benefits

    Offspring of mice that jogged each day during pregnancy may have a mental advantage over pups of sedentary moms.

  11. Health & Medicine

    Genes for macular degeneration

    Variations in two genes could account for three-quarters of all cases of age-related macular degeneration.

  12. Thymus twice as nice for mice

    Mice have a second thymus, located in the neck.