Ethics of Sun and Sand
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Human Life. Human Ethics. Since it looks like we're the only species having this conversation..... Common ground and catalyst for the protection of human rights in medicine and science policy.
Stem Cell Procedure Faster Now
May 18, 2006, 07:35 PM
A Central Texas woman has become Austin's first recipient of a stem cell implant. The procedure was performed at the new hospital at Westlake Medical Center.
Thanks to two Austin companies, what used to take months can now be done in just a few hours.
Lottrell Davis takes her first steps since undergoing innovative surgery on May 9 to alleviate her chronic back pain. While she grimaces in pain, she readily admits the discomfort resulting from her rehab is nothing compared to the back pain she's endured for the last decade.
"On a scale of one to 10, it was about a 15. Sometimes I would just sit on my bed and just cry because I couldn't do anything else with the pain," Davis said.
Over the last 10 years, Davis has had everything from routine back surgery to epidural steroid injections to spinal cord stimulators, which are supposed to trick the body into thinking it's not really experiencing as much pain.
The trick was on Davis because nothing worked. Then orthopedic spine surgeon Dr. Scott Spann told Davis about a procedure that uses stem cells from the patients own bone marrow to aid in spinal fusion.
"The stem cells don't make her lose the pain. The idea is they will enhance her body's ability to achieve the fusion," Spann said.
Thanks to two Austin companies, this procedure, which used to take months, can now be done in one operative session.
Spinesmith developed the special needle and other equipment that extracts or harvests the stem cells. Surgical Outcomes designed the centrifuge system which produces sort of the cream of the crop of the patient's stem cells.
Spann says the technology allows the body to jump-start its own bone healing process.
"We're just enhancing the body's natural biology," Spann said.
After her surgery, Davis has just one question.
"Now I wonder, why did I wait so long? The way I feel now, as opposed to how I was feeling before, I don't understand why I did wait for so long," Davis said.
Before this new Austin-developed technology, patients would have to go in, be put under and have bone marrow scraped from their legs. That was then sent to a lab where the stem cells were extracted. Then another operation was needed to insert the stem cells.
Now it's all done in just a few hours.
When people hear the words stem cells they may think this is a controversial procedure, but that's not the case here.
The controversy that arose a few years, and eventually went before the president, was over embryonic stem cells.
The stem cells used in this procedure are harvested from the patient's own body.
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UCI scientists to generate new embryonic stem cell lines
Lines to be made available free-of-charge for research
Irvine, Calif., May 16, 2006
A research team led by UC Irvine neurobiologist Hans Keirstead will generate up to five new human embryonic stem cell lines to be used for research into treatments for spinal cord injury and diseases such as diabetes and Parkinson’s disease. The lines will be the first developed at UCI.
Keirstead, co-director of UCI’s Stem Cell Research Center, and Gabriel Nistor, a scientist in his laboratory, will derive the new lines from surplus embryos donated by couples undergoing fertility treatment at West Coast Fertility Centers in Orange County. Embryo donations will be made with the informed consent of donor couples and under a procedure approved by UCI’s Embryonic Stem Cell Research Oversight Committee. Once the lines have been created and tested in labs at UCI, Keirstead plans to make them available to researchers worldwide free of charge.
“Generating new stem cell lines is an essential next step in the progression of stem cell research toward the development of new research tools and treatments for human disease,” said Keirstead, associate professor of anatomy and neurobiology. “We are committed to making these lines available to the scientific community so that other researchers may join us in our pursuit of better therapies for devastating diseases.”
Keirstead will work with Dr. David Diaz, West Coast Fertility Centers’ medical director, to use novel techniques for developing the new lines, as well as freezing and preserving the lines after they have been created. The techniques for freezing and preserving lines were developed at the clinic for the preservation of embryos.
Stem cells are the “master” cells that give rise to each of the specialized cells within the human body. During organ and tissue development, these cells transform into a particular specialized cell, such as a heart cell or a liver cell, when prompted by their environment or by their internal genetic programming. If researchers can control the processes directing stem cell transformation, they may one day be able to use these cells as a source of healthy replacement cells for tissues damaged by disease or injury. This work has been the subject of Keirstead’s recent research.
New embryonic stem cell lines are derived from three- to five-day-old embryos produced during fertilization treatments. The excess embryos are often frozen indefinitely or discarded as medical waste. Donors must give permission before these embryos can be used for research purposes.
Keirstead will make lines not only from healthy embryos, but also from embryos known to harbor genetic abnormalities. Stem cells derived from these lines can be used as cellular models of human disease that may help scientists better understand these genetic diseases.
UC Irvine and an Orange County fertility clinic are teaming up to create at least five new lines of human embryonic stem cells, becoming one of the few groups in the country to try to produce fresh lines for the study of everything from spinal cord injuries to Parkinson's disease.
Using private money, the University of California, Irvine, will try to produce new lines from surplus embryos that people donate through West Coast Fertility Clinics, which has offices in Fullerton, Fountain Valley and Irvine.
If successful, the team will donate cells to scientists around the world who are studying the so-called master cells that have the potential to become any one of the more than 200 cells in the body. Researchers say it might be possible to program these cells to cure or treat disease and some injuries.
The team will be led by UCI neurobiologist Hans Keirstead, who will attempt to create the lines from healthy embryos and those with genetic abnormalities.
"We want to expand the genetic diversity of the cells we study," said Keirstead, co-director of the UCI Stem Cell Research Center. "Creating new lines is challenging. But our lab has six years of experience in stem cells and we believe we can do this."
Prosecutors said last Friday that Hwang received 2,236 ova extracted from 136 donors between November 2002 and December 2005 through four medical institutions collaborating with Hwang's research team.
The institutions that cooperated with Hwang include Hanyang University Medical Center, fertility clinic MizMedi Hospital, Jeil General Hospital and Hanna Women's Clinic.
In January, a fact-finding committee at Seoul National University (SNU) said Hwang's team amassed up to 2,061 eggs from 129 donors, far more than the 427 eggs Hwang's team had claimed to have used.
A month later, the National Bioethics Committee revealed Hwang gathered 2,221 eggs from 119 donors for his stem cell research from 2002 until last December, 160 more than reported by the SNU investigative panel.
The committee also concluded his research team ran into serious ethical problems with its ova procurement.
Last Friday, the prosecution indicted without detention Hwang on charges of fraud, embezzlement and breaches of the bioethics law, ending a five-month probe into the research fabrication scandal.
Prosecutors said he embezzled 2.8 billion won ($3 million) out of some 40 billion won in research funds for personal purposes and the illegal purchase of ova used in his experiments.
They also accused him of illegally paying some 38 million won to 25 women who provided ova for his research through Hanna Women's Clinic in the first eight months of 2005.
Meanwhile, Hanyang University Medical Center was found to have provided ova from its patients to Hwang's team without the consent of donors, violating the Korean bioethics law.
The center, which sent its researchers to collaborate on the experiments, provided a total of 121 human eggs to Hwang's team between April and November of last year.
Investigators discovered that 113 ova extracted from 72 patients between 2002 and 2003 were sent to Hwang's team without the consent of the donors.
Last month, two women who donated their eggs to Hwang's laboratory filed a lawsuit against the state and two medical centers, claiming they had not been informed about potential risks posed by the egg retrieval processes.
Singer: We recognize the chicken as another conscious being. It's different from us, but it has a life, and if something is really important for that chicken, if it would work hard to try to get it, and if we can give it without sacrificing something that's really important to us, then we should.
Singer: The question is whether saying that you are not a member of my kind, and that therefore I don't have to give consideration to your interests, is something that was said by the Nazis and the slave traders, and is also something that we are saying to other species. The question is, what is the relevant difference here? There is no doubt that there is a huge difference between human and nonhuman animals. But what we are overlooking is the fact that nonhuman animals are conscious beings, that they can suffer. And we ignore that suffering, just as the Nazis ignored the suffering of the Jews, or the slave traders ignored the suffering of the Africans. I'm not saying that it's the same sort of suffering. I am not saying that factory farming is the same as the Holocaust or the slave trade, but it's clear that there is an immense amount of suffering in it, and just as we think that the Nazis were wrong to ignore the suffering of their victims, so we are wrong to ignore the sufferings of our victims.
"There should be a presumption to provide treatment to all those who request it, unless there is evidence that the child to be born would face a risk of serious medical, physical or psychological harm."
Stem cells may come up in Lege
Lawmakers want to limit research.
By Laylan Copelin
AMERICAN-STATESMAN STAFF
Thursday, May 11, 2006
The Texas House is poised to debate restricting embryonic stem cell research in some public university buildings.
Rep. Geanie Morrison, R-Victoria, chairwoman of the House Higher Education Committee, has told both sides that she will accept an amendment on the stem-cell issue to legislation she has filed to allow colleges and universities to issue bonds to pay for construction projects.
House Bill 153 would authorize Texas universities to fund $3.7 billion in construction at public universities and medical schools.
The amendment would bar biomedical research at those newly constructed sites if federal funding is prohibited for the research. Under rules established by President Bush in 2001, federal money for embryonic stem cell research has been limited to previously established stem cell lines.
Gov. Rick Perry is expected to expand the agenda of the 30-day special session today to allow lawmakers to take up the so-called tuition revenue bonds authorized in Morrison's bill, Lt. Gov. David Dewhurst said late Wednesday. That could clear the way for the stem cell debate as soon as today.
Joe Pojman, executive director of Texas Alliance for Life, praised the stem cell amendment.
"It protects state taxpayers from paying for what many of us consider unethical activity," he said of embryonic stem-cell research. He said research with adult stem cells could continue.
Pojman said the amendment would just bring Texas in line with federal funding guidelines, an argument hotly disputed by the other side.
Judith Haley, president of Texans for Advancement of Medical Research, said the amendment would have far-reaching effects on biomedical research in Texas.
She said the amendment would bar any embryonic stem-cell research, even when financed by private dollars, in those public research facilities.
She said the amendment would put Texas out of step with the rest of the country even as Congress is considering easing funding guidelines on the research.
"It not only disallows research with private funds," Haley said, "it sets it in stone" through the life of the buildings.
Morrison said she was looking for language that would satisfy both sides, a high bar.
University of Texas officials did not comment on the proposal Wednesday. But when the same issue arose last summer, they said scientists at the UT Health Science Center in Houston were conducting research on human embryonic stem cells but only on federally approved ones. They were hoping to build a $41.1 million facility there to focus on adult and animal stem cell research.
Scientists affiliated with the school previously did a study in which they injected patients' hearts with adult stem cells to reverse damage and said a new facility would help them maintain a leadership position in the field.
Scientists say adult stem cells show promise in their ability to turn into certain types of tissue. Embryonic stem cells, they say, have even greater potential and might be able to morph into almost anything, including organs.
Opponents say that the uses of embryonic stem cells are unproven and that studying them is unethical because it could promote the destruction of embryos to retrieve stem cells.
If it is not resolved this session, the issue probably will arise again next year.
House Speaker Tom Craddick said he was leaving the issue in Morrison's hands.
lcopelin@statesman.com; 445-3617
"That a question is important does not mean that it is constitutional. The Founding Fathers did not establish the United States as a democratic republic so that elected officials would decide trivia, while all great questions would be decided by the judiciary." From comments by Judge Arthur J. Kleinfeld, in the dissenting opinion in the 9th Circuit Court "right to die" case, Compassion in Dying vs.Washington, 79 F.3d at 857, 858.
(Begin "Rolling Stone" sound track.)
(For the younger crowd: "You cain't always get what ya want.....")
You stated in your Narrative that “the NICU team believes that it is time to consider removal of support, as it appears to be causing the child pain without hope for her recovery.” This sounds like “virtually futile and inhumane”. (Emphasis mine.)
" a physician or health care facility that will honor the patient's directive will be found if the time extension is granted."