April 17, 1986 |
Vladimir Apekin's wife and daughter are engaging in an indefinite hunger strike in the hope that they can persuade the Soviet authorities to let the refusenik leave the country for special medical care. Apekin, 49, a former marine biologist who was dismissed from his job after he applied to emigrate to Israel, was hospitalized in early March for a variety of ailments, including heart disease.
January 11, 2011 |
Chemotherapy, radiation treatments, organ transplants and illness can all depress numbers of platelets -- the cell fragments in the blood that help form clots -- in the human body. Patients often need platelet transfusions. Unfortunately, platelets are scarce. Today, hospitals depend on blood donations to get them, and once they're in hand, they have a very short shelf life: only about a week. But, researchers wrote Tuesday in the journal Cell Research , pluripotent stem cells -- that is, cells that have the potential to turn into any other type of cell in the body -- might one day provide a way to generate "an unlimited supply of platelets for transfusion" in the laboratory.
CALIFORNIA | LOCAL
November 3, 1985 |
The Cray-2 is only four feet high and four feet in diameter, but the new $17-million device at NASA's Ames Research Center is the world's fastest, most powerful supercomputer. Because its micro-miniaturized electronic circuits are packed so close together, the compact machine is the first supercomputer to have components immersed in a colorless fluorocarbon liquid that prevents overheating. The liquid also often is used as artificial human blood plasma.
CALIFORNIA | LOCAL
December 11, 1995 |
Ten years ago, Dr. Robert Ferguson conducted an improbable experiment. Using balloon angioplasty, a technique to unclog coronary arteries, he tried to open a blocked artery in a stroke victim's neck. The patient thrived, but Ferguson, a radiologist at Baptist Memorial Hospital in Memphis, was practically run out of medicine for taking the therapeutic gamble, which he believed was justified because the patient also had cancer, making him ineligible for standard surgical therapy. "There was great doubt that this made any sense," Ferguson said.
July 17, 2002 |
A year ago, the Navy gave Anthony Mulligan's company a small grant to build a cheap aerial drone for whale watching. The idea was to make sure marine mammals weren't around during sonar tests. Then came Sept. 11. And, with the help of an Arizona congressman, Mulligan transformed the drone into a potential weapon in the new war on terrorism.
CALIFORNIA | LOCAL
July 30, 1990 |
In the 1950s and 1960s, surgeons devised operations that revolutionized the treatment of peripheral vascular disease, a condition in which the arteries in the pelvis and legs are narrowed by a buildup of cholesterol and calcium clots in the vessel. The new advance was to install artificial blood vessels made of Dacron or to use one of the patient's veins to bypass the clots. These procedures prevented amputations and improved the lives of thousands of patients.
February 21, 2011 |
Heart bypass patients may soon be able to get new arteries without having to sacrifice vessels from other parts of their body, thanks to ready-made, off-the-shelf artificial blood vessels. Biomedical engineers have been trying to build replacement blood vessels, needed for coronary artery bypass surgery and kidney dialysis patients, for three decades. Researchers from Humacyte Inc., in Durham, N.C., discovered the trick: recruiting cells to build the vessel, then washing them away so the nonliving tissue is storable and works for anyone.
April 4, 2006 |
In a major advance toward the development of artificial organs, bladders grown from patients' own cells in the laboratory have been successfully implanted in seven children with spina bifida and shown to function for five years or longer, researchers reported today. The achievement, reported online in the international medical journal the Lancet, marks the first time that artificial organs more complicated than skin and bone have been implanted in humans.