Christen Brownlee

All Stories by Christen Brownlee

  1. People with malaria attract more mosquitoes

    The protozoan causing malaria may facilitate its own spread by making people more alluring to mosquitoes.

  2. Rice, revealed

    Researchers have finished a 6-year-long effort to sequence the genome of rice.

  3. Food Fix

    Scientists have discovered a number of neurological connections between drug addiction and obesity.

  4. Turning Back Time: Embryonic stem cell rejuvenates skin cell

    By fusing an embryonic stem cell with an adult skin cell, researchers have created cells that retain valuable embryonic characteristics but carry the adult cell's genes.

  5. Bitty Beasts of Burden: Algae can carry cargo

    Scientists have devised a way to make single-cell algae bear loads over distances of several centimeters, a tactic that could prove useful in tiny machines.

  6. A Slumber Not So Sweet: Loss of brain cells that regulate breathing may cause death during sleep

    Elderly people may die in their sleep because they gradually lose brain cells that control breathing.

  7. Double Dog: Researchers produce first cloned canine

    The dogged pursuit of a South Korean research team has produced Snuppy, the world's first cloned canine.

  8. Bacteria feed on stinky breath

    Scientists have isolated mouth bacteria that consume the chemicals that cause bad breath.

  9. Human immune signal sets off bacterial attack

    A chemical secreted by immune cells when people are stressed or sick causes a common gut bacterium to go on the offensive against its host.

  10. Boning Up: Tissue for grafts grown inside the body

    Scientists have discovered a new way to stimulate one part of an animal's body to grow extra bone tissue that can be transplanted elsewhere.

  11. Cell death may spur aging

    Genetic mutations in cells' internal powerhouses could contribute to aging by stifling tissue maintenance.

  12. Bacterial Snitch: Species competes by telling on another

    A bacterial species that typically colonizes people's noses may win out over another bacterium by tattling to the host's immune system.