March 4, 2011 |
One of the high-profile areas of research for stem cells is in treatment of spinal cord injuries -- and there was progress to report this week. Researchers were able to transplant a type of human cell into rats with spinal cord injuries to help the animals regain some motor function. Previous studies have shown that certain types of rat cells are necessary to repair spinal cord injuries. But the new study "brings it up to a human level," said Chris Proschel, the lead author of the paper and an assistant professor of genetics at the University of Rochester Medical Center.
October 11, 2010
Make way for the future, at least when it comes to stem-cell therapy. An Atlanta hospital treated the first patient Friday in a nationwide clinical trial of a therapy derived from embryonic stem cells. The clinical trial, run by pharmaceutical company Geron Corp., seeks to test whether experimental cells, known as GRNOPC1, are safe for use in humans and whether patients will regain neuromuscular control in their legs and torsos. The Shepherd Center in Atlanta, a rehabilitation hospital that specializes in people who have spinal cord injuries or disease, and Northwestern Medicine in Chicago are currently enrolling patients in the trial.
November 14, 2011 |
Injections of bone marrow cells into the heart can help heart attack patients regain pumping function, studies have shown. But such injections don't seem to work once more than a week or so has passed post-heart attack, researchers working with a National Heart, Lung and Blood Institute-sponsored trial reported Monday in JAMA, the Journal of the American Medical Assn. Physicians at five participating medical research centers treated 57 patients with infusions of cells from the subjects' own bone marrow, two to three weeks after the patients had suffered a heart attack.
CALIFORNIA | LOCAL
August 18, 2001
George Will (Commentary, Aug. 14) gives nearly reverential accolades to President Bush for consulting with bioethicists in his stem cell research decision. He applauds the president's prudence and humbleness concerning "life's mysteriousness." Maybe Bush should have consulted those same bioethicists when he decided to allow arsenic in the water, drilling in pristine wilderness areas, easing of legal pressure on the tobacco companies, bowing out of the Kyoto accord and his upcoming decision regarding the easing of laws that protect the quality of our air. Ed Silverstein Santa Monica Will's bifurcation of the two major political parties according to a "cultural cleavage" represents one of the premises upon which he builds his case that, somehow, Bush and his appointee to head a commission on biomedical ethics are bastions against a tide of "extremism" that is espoused by none other than House Democratic leader Richard Gephardt.
July 25, 2013 |
In courtrooms, on therapists' couches and across the kitchen table, we count on the trustworthiness of our memories. But brain scientists are increasingly demonstrating that our recollections don't exactly deserve the faith we put in them. They can be self-servingly Photoshopped, nudged off the mark by suggestion, and corrupted by being dragged out and rehashed. Just how flimsy are the foundations of memory? So flimsy that in a neuroscience lab at the Massachusetts Institute of Technology, researchers were able to fabricate fearful memories and implant them in the brains of mice using a few electrical probes, some photo-sensitive chemicals and a miniature flashlight.
June 19, 2005 |
The courier arrived just after midnight with a bag of blood collected from a fresh umbilical cord. Inside the laboratory at Family Cord Blood Services in Santa Monica, a worker siphoned off red cells, leaving a dilute mixture of stem cells — a personal supply for Olivia Michelle Boyd, born 15 hours earlier in Honolulu. Her parents, Stephanie and Anthony Boyd, had agreed to pay the company $1,265 to harvest the material and $115 a year to preserve it in a stainless steel tank filled with liquid nitrogen.
September 27, 2008 |
Treatment with genetically modified stem cells helped rats with a paralyzing disease live significantly longer, U.S. researchers said this week. Rats with amyotrophic lateral sclerosis, or Lou Gehrig's disease, that were treated with the gene-engineered stem cells lived 28 days longer than untreated mice, the researchers told a conference. The injection contained adult nerve stem cells that were engineered to release a growth factor called glial cell-line derived neurotrophic factor, or GDNF.
CALIFORNIA | LOCAL
October 1, 1990 |
Researchers at an American Red Cross research laboratory in Bethesda, Md., have succeeded in greatly extending the life span of human cells grown in the laboratory, a feat that promises to shed new insight on the aging process. Researchers have long known that human cells grown in a test tube can reproduce no more than 60 times before they die from old age--that somehow the cells are genetically programmed to die after that number of generations has been achieved.
October 11, 2008 |
The University of Minnesota has concluded that falsified data were used in a 2001 article published by one of its researchers that suggested adult stem cells could be used as an alternative to embryonic stem cells in medical research. The school is asking that the article be retracted. An investigation into research published by Dr. Catherine Verfaillie cleared her but pointed to a former graduate student, Dr. Morayma Reyes, for altering data by adjusting brightness and contrast in images used in the article.