Word: livers
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
Cholesterol in the bloodstream comes from two sources: it is produced naturally by the body's cells and also results from the intake of foods containing saturated fats or pure cholesterol -- for example, butter, cheese, liver, eggs and animal fat. In the Third World, where relatively little saturated fat and cholesterol are consumed, most people seem to be protected from heart disease by low LDL levels. The problem with the Western world's rich diet is that it puts the body into overdrive, so that more LDL cholesterol accumulates in the bloodstream than can be absorbed and used by cells...
...jackals haven't the barnacled, bad-liver look of some who covered the 1960 campaign. They don't, like Teddy White, smoke unfiltered cigarettes, or filtered either. They play poker sometimes, or blackjack, and one throwback even asks for a Jack Daniels. A group clusters around the seats behind and plays a game of Jeopardy on a laptop computer -- in answer to which the candidate's press staff, quite justly, chants in rallentando: "Boring, boring, BORING!" The journalists all have toys White never imagined -- cellular telephones, laptops, tiny portable television sets, all the magic paraphernalia connecting them...
...international collection of physicians. Shawcross's last chapters reverberate with the clash of medical opinions and large egos. When things sorted out, the Shah was back in Egypt, where his spleen was removed by the renowned Texas heart surgeon Michael DeBakey. The procedure also revealed fatal malignancies of the liver...
...these mice usually die at an early age, often of pneumocystis pneumonia, the disease that kills many AIDS patients. The researchers implanted some 300 of the defective mice with tissue taken from human fetal thymus, where certain immune and blood cells develop, and with blood-forming cells from fetal liver. The implanted tissues soon produced mature human T cells, specialized white blood cells that help provide immunity against disease. Mice that additionally received fetal lymph tissue -- needed for the functioning of some immune cells -- also developed mature human B cells. All fetal tissues were obtained from legally aborted fetuses with...
After more than a year, the Stanford mice are still thriving. Their new immune systems, however, must be sustained by injections of fetal liver cells every eight to twelve weeks. In addition, researchers are not sure whether all the parts of the human system are functioning in the mice. "We'll find that out," says Weissman, "but we'll have to do every known test for human immune cells. These mice open ways of studying human systems, normal or diseased, under experimental circumstances that were impossible before...