January 24, 1995 |
Ever found a mysterious black-and-blue mark on your body and wondered how it gotthere? Whether the result of major trauma or an inadvertent bump, bruising is one way to assess damage to tissue. The factors involved in what makes a bruise and how it heals are fairly simple. In an effort to get to the bottom of bruising, we went to three specialists who deal in bruises: Dr. Philomena McAndrew, a Los Angeles hematologist; Dr. William Shankwiler, a Pasadena orthopedic surgeon, and Dr.
July 7, 2005 |
New research gives the first solid evidence that a type of fat in the bloodstream can trigger the earliest steps that lead to clogged blood vessels, researchers said Wednesday. If further research bears this out, people might someday be tested for this fat, just as they are for cholesterol now, to see if they're in danger of having a heart attack. The study found that levels of the fat strongly correlated with the risk of heart disease, especially in people under 60.
March 11, 2002 |
In her youth, my sister (who is not exactly a delicate flower) would sometimes faint. It was never quite clear why, and the episodes eventually passed. I was impressed. I couldn't even faint when I tried, and I did try once, in my teens. A pal devised a kind of "fainting recipe" that involved antics like rapid inhaling and exhaling. The antics didn't work.
CALIFORNIA | LOCAL
August 13, 1998
The discovery that an enzyme called thrombin has two different ways to tell blood platelets to form a clot might help researchers develop new therapies for clotting disorders like heart attacks and strokes, researchers from UC San Francisco report in today's issue of the journal Nature. When blood vessels are injured or the flesh is cut, thrombin activates platelets--the little cells that clump together to plug blood vessels.
August 11, 1988
First-baseman Greg Walker of the Chicago White Sox, who suffered a seizure during batting practice July 30, was released from the hospital and is expected to return to action in 10 to 15 days. Doctors determined that Walker's problem was caused by an inflammation of blood vessels in the brain.
December 30, 1994 |
Scientists Thursday reported progress in cutting off blood supply to a wide variety of tumors in laboratory animals, a finding that could lead to new ways of making human cancers shrink and disappear. "We don't want to oversell this--we're not saying we have the magic bullet, there's a lot more research to be done. But so far, we have green lights," said Dr. David A. Cheresh, one of the lead scientists on the project at the Scripps Research Institute in La Jolla.
August 28, 2012 |
Since tissue plasminogen activator (tPA) was approved by the Food and Drug Administration in 1996 for the dissolution of blood clots in the brain that cause strokes, it has been the primary treatment for stroke victims. But it has several limitations. In most cases, it must be used within three hours after the stroke to be effective, although in some cases the crucial window can be extended to 4.5 hours. It is also often not effective in dissolving larger blood clots. On 2004, the FDA approved the first mechanical system for removing clots from the brain, the Merci Retrieval System.
September 27, 1985 |
Scientists said Thursday that they have isolated a gene that instructs the body to build tiny new blood vessels, a crucial step in cancer growth, and they say this could open new strategies to defeat malignancies. The researchers who purified and analyzed the protein, named angiogenin, which this gene controls, say it is the first time that an organ-forming protein has been understood in detail. The discovery is the culmination of 10 years of work by Dr. Bert L.