Scientists take steps to grow human organs


Published: Saturday, February 1, 2003 at 6:01 a.m.
Last Modified: Saturday, February 1, 2003 at 12:23 a.m.
  • OMAHA, Neb. - Nebraska scientists say they successfully grafted a pig's heart to a sheep by manipulating the immune systems of both animals, a step that may soon allow scientists to grow organs for human transplantation.
    Other scientists conducting similar cross-species experiments said the Nebraska results are limited because the livestock are genetically similar. More research into the biochemistry of tissue rejection is needed before human trials could take place, they cautioned.

    Military IDs four killed in Afghan copter crash

  • FORT CAMPBELL, Ky. - The four soldiers killed in a helicopter crash in Afghanistan were all members of an elite aviation regiment based at Fort Campbell, military officials said Friday.
    The 160th Special Operations Aviation Regiment - known as the Night Stalkers - was one of the first units deployed to fight in Operation Enduring Freedom, America's war on terrorism.
    The four soldiers were identified as Chief Warrant Officer Mark S. O'Steen, 43, of Alabama; Chief Warrant Officer Thomas J. Gibbons, 31, of Maryland; Staff Sgt. Daniel L. Kisling Jr., 31, of Missouri; and Sgt. Gregory M. Frampton, 37, of California.

    Freezing temperatures, snow shut down Britain

  • LONDON - Much of Britain ground to a standstill Friday as freezing temperatures and snowfall closed airports, railways and roads - prompting criticism of the country's ability to cope with winter weather.
    Almost 200 flights into and out of Heathrow Airport were canceled; Stansted Airport was closed for most of the day; highways around the country were gridlocked and many train services were abandoned.
    Broadcast reports in the most severely affected areas advised people to stay indoors unless absolutely necessary after thousands of commuters spent a freezing night stranded in their cars.

    Number of illegal migrants in U.S. surges

  • WASHINGTON - The number of immigrants living illegally in the United States jumped by 1 million in under four years, the government reported Friday.
    In the latest count, based on the 2000 Census and INS statistics, the Immigration and Naturalization Service reported that roughly 7 million immigrants, mostly Mexicans, were living illegally in the United States as of January 2000.

    Astronauts complete work, plan for return

  • CAPE CANAVERAL - Space shuttle Columbia's U.S.-Israel crew wrapped up more than two weeks of scientific research in orbit Friday and aimed for a homecoming under heavy security.
    Because of the Israeli on board, security will be tighter than usual for the Saturday morning landing.
    "We've taken all reasonable measures, and all of our landings so far since 9-11 have gone perfectly," said Lt. Col. Michael Rein, an Air Force spokesman.
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