Monday, March 30, 2009

Texas Legislators Seek to Limit Funds for Human Embryo Destruction

Senator Steve Ogden is a Texas Hero!

Sen. Steve Ogden, R-Bryan, though, said critics exaggerate what his 24-word "budget rider" would do. He said it simply assures that the budget's $700 million for research doesn't underwrite destruction of embryos.

"There is a significant moral concern amongst many Texans that a human embryo really meets every scientific definition of human life that's out there and that we shouldn't be using human embryos for scientific experiments," Ogden said.

The dispute flared early last week. The Senate Finance Committee, which Ogden heads, took only two minutes late Monday to consider his rider. It says, "No funds appropriated under this act shall be used in conjunction with or to support research which involves the destruction of a human embryo."

The provision was adopted, 6-5, with Sen. Robert Duncan, R-Lubbock, joining four Democrats against.


The Dallas Morning News reports (free registration required) that some Texas embryonic research advocates claim this move will "embarrass" Texas. Of course, they also claim that embryonic stem cell research only involves "embryos that would be discarded, any way" Since we know that much of the research involves specially created, "disease specific" embryos, the latter is false.

And so is the first objection. Every week, we are reading about new ways to reprogram adult cells to achieve the stem cells that are needed to study and treat disease without ever going near an embryo. Former proponents of embryonic research and producers of new embryos for stem cell research like George Daley are switching their focus toward non-embryonic research. Texas researchers have been early stars in this research, among the first to using umbilical cord blood for stem cell research.

Texas doesn't need to waste our money following the false trail of embryonic stem cell research when there is so much promise in more treatments, sooner, from non-destructive and non-embryonic research.

Sunday, March 29, 2009

Why the medical home sounds good but won't work

A sister Family Physician says in her blog, "Musings of a Dinosaur,"

It is the source of endless angst among family doctors in solo and small group practice, because the structure of the PCMH excludes us by definition. The PCMH is advertised to work best in large group practices like Kaiser and the Mayo Clinic. All I can say is "DUH!"You know what the PCMH really is? Nothing more than this:

IT'S A WAY TO MAKE LARGE GROUP PRACTICES WORK MORE LIKE A SOLO DOC!!!

I am already performing every meaningful function of the PCMH. So is virtually every physician in solo and small group practice. There is absolutely nothing to be gained -- and a significant amount of money to be lost; this thing is expensive! -- by adopting any of this PCMH shit. Somehow that doesn't seem to stop our Academy from tossing us to the wolves by simply ignoring us.

New England Journal of Medicine plays conscience politics ("Trust me, I will act against my conscience," cont'd)

The New England Journal of Medicine has published a "Commentary" by a lawyer who has worked for Planned Parenthood, concerning the practice of medicine and conscience.

I don't like to publish entire articles from subscription-only sources (especially one written by a lawyer), but this serious breach of ethics on the part of the NEJM should be documented.

The NEJM published this in advance of the dead-tree version because the last day for comments is the same day the paper Journal comes out.

This most definitely should have been in the "Free Content" form, and it is. We should thank the editors for this favor. Physicians and others who do not subscribe (to the tune of several hundred dollars a year) are able to read and answer this lawyer's viewpoint of the practice of medicine.

There is no opposing view offered. Yep, let's talk about "choice" and "consent." but only give their choice and their consent.

The essay contains more of the ridiculous examples that we should be used to by now: the author asks about a doctor who refuses to care for diabetics because his religion counts gluttony as a sin.

She calls abortion - all abortions, without making the distinction between elective abortion and those necessary to save the life of the mother - "standard of care."

More in a bit:


From the online version of the New England Journal of Medicine, published in advance of printing in the April 9, 2009 issue of the Journal:

The regulation, as explained in its text (see the Supplementary Appendix, available with the full text of this article at NEJM.org), aims to raise awareness of and ensure compliance with federal health care conscience protection statutes. Existing laws, which are tied to the receipt of federal funds, address moral or religious objections to sterilization and abortion. They protect physicians, other health care personnel, hospitals, and insurance plans from discrimination for failing to provide, offer training for, fund, participate in, or refer patients for abortions. Among other things, the laws ensure that these persons cannot be required to participate in sterilizations or abortions and that entities cannot be required to make facilities or personnel available for them. And they note that decisions on admissions and accreditation must be divorced from beliefs and behaviors related to abortion. On their face, these laws are quite broad.

But the Bush administration's rule is broader still. It restates existing laws and exploits ambiguities in them. For example, one statute says, "No individual shall be required to perform or assist in the performance of any part of a health service program or research activity funded" by DHHS if it "would be contrary to his religious beliefs or moral convictions."1 Here the rule sidesteps courts, which interpret statutory ambiguities and discern congressional intent, and offers sweeping definitions. It defines "individual" as physicians, other health care providers, hospitals, laboratories, and insurance companies, as well as "employees, volunteers, trainees, contractors, and other persons" who work for an entity that receives DHHS funds. It defines "assist in the performance" as "any activity with a reasonable connection" to a procedure or health service, including counseling and making "other arrangements" for the activity. Although the rule states that patients' ability to obtain health care services is unchanged, its expansive definitions suggest otherwise. Now everyone connected to health care may opt out of a wide range of activities, from discussions about birth control to referrals for vaccinations. As the rule explains, "an employee whose task it is to clean the instruments used in a particular procedure would also be considered to assist in the performance of the particular procedure" and would therefore be protected. Taken to its logical extreme, the rule could cause health care to grind to a halt.

It also raises other concerns. In terms of employment law, Title VII of the Civil Rights Act, which applies to organizations with 15 or more employees, requires balancing reasonable accommodations for employees who have religious, ethical, or moral objections to certain aspects of their jobs with undue hardship for employers. But the new rule suggests that if an employee objects, for example, to being a scrub nurse during operative treatment for an ectopic pregnancy, subsequently reassigning that employee to a different department may constitute unlawful discrimination — a characterization that may be at odds with Title VII jurisprudence.2 As officials of the Equal Employment Opportunity Commission remarked when it was proposed, the rule could "throw this entire body of law into question."3

Furthermore, although the rule purports to address intolerance toward "individual objections to abortion or other individual religious beliefs or moral convictions," it cites no evidence of such intolerance — nor would it directly address such intolerance if it existed. Constitutional concerns about the rule, including violations of state autonomy and rights to contraception, also lurk. And the stated goals of the rule — to foster a "more inclusive, tolerant environment" and promote DHHS's "mission of expanding patient access to necessary health services" — conflict with the reality of extensive objection rights. Protection for the silence of providers who object to care is at odds with the rule's call for "open communication" between patients and physicians. Moreover, there is no emergency exception for patient care. In states that require health care workers to provide rape victims with information about emergency contraception, the rule may allow them to refuse to do so.

Recently, the DHHS, now answering to President Barack Obama, took steps to rescind the rule (see the Supplementary Appendix). March 10 marked the beginning of a 30-day period for public comment on the need for the rule and its potential effects. Analysis of the comments (www.regulations.gov) and subsequent action could take some months. If remnants of the rule remain, litigation will follow. Lawsuits have already been filed in federal court, and Connecticut Attorney General Richard Blumenthal, who led one of the cases, has vowed to continue the fight until the regulation is "finally and safely stopped."4

This state of flux presents an opportunity to reconsider the scope of conscience in health care. When broadly defined, conscience is a poor touchstone; it can result in a rule that knows no bounds. Indeed, it seems that our problem is not insufficient tolerance, but too much. We have created a state of "conscience creep" in which all behavior becomes acceptable — like that of judges who, despite having promised to uphold all laws, recuse themselves from cases in which minors seek a judicial bypass for an abortion in states requiring parental consent.5

The debate is not really about moral or religious freedom writ large. If it were, then the medical profession would allow a broad range of beliefs to hinder patient care. Would we tolerate a surgeon who holds moral objections to transfusions and refuses to order them? An internist who refuses to discuss treatment for diabetes in overweight patients because of moral opposition to gluttony? If the overriding consideration were individual conscience, then these objections should be valid. They are not (although they might well be permitted under the new rule). We allow the current conscience-based exceptions because abortion remains controversial in the United States. As is often the case with laws touching on reproductive freedom, the debate is polarized and shrill. But there comes a point at which tolerance breaches the standard of care.

Medicine needs to embrace a brand of professionalism that demands less self-interest, not more. Conscientious objection makes sense with conscription, but it is worrisome when professionals who freely chose their field parse care and withhold information that patients need. As the gatekeepers to medicine, physicians and other health care providers have an obligation to choose specialties that are not moral minefields for them. Qualms about abortion, sterilization, and birth control? Do not practice women's health. Believe that the human body should be buried intact? Do not become a transplant surgeon. Morally opposed to pain medication because your religious beliefs demand suffering at the end of life? Do not train to be an intensivist. Conscience is a burden that belongs to the individual professional; patients should not have to shoulder it.

Patients need information, referrals, and treatment. They need all legal choices presented to them in a way that is true to the evidence, not the randomness of individual morality. They need predictability. Conscientious objections may vary from person to person, place to place, and procedure to procedure. Patients need assurance that the standard of care is unwavering. They need to know that the decision to consent to care is theirs and that they will not be presented with half-truths and shades of gray when life and health are in the balance.

Patients rely on health care professionals for their expertise; they should be able expect those professionals to be neutral arbiters of medical care. Although some scholars advocate discussing conflicting values before problems arise, realistically, the power dynamics between patients and providers are so skewed, and the time pressure often so great, that there is little opportunity to negotiate. And there is little recourse when care is obstructed — patients have no notice, no process, and no advocate to whom they can turn.

Health care providers already enjoy broad rights — perhaps too broad — to follow their guiding moral or religious tenets when it comes to sterilization and abortion. An expansion of those rights is unwarranted. Instead, patients deserve a law that limits objections and puts their interests first. Physicians should support an ethic that allows for all legal options, even those they would not choose. Federal laws may make room for the rights of conscience, but health care providers — and all those whose jobs affect patient care — should cast off the cloak of conscience when patients' needs demand it. Because the Bush administration's rule moves us in the opposite direction, it should be rescinded.

Dr. Cantor reports representing an affiliate of Planned Parenthood in a legal matter unrelated to conscientious objection. No other potential conflict of interest relevant to this article was reported.


Source Information

Dr. Cantor is an adjunct professor at the UCLA School of Law, Los Angeles.

This article (10.1056/NEJMp0902019) was published at NEJM.org on March 25, 2009. It will appear in the April 9 issue of the Journal.

References

1. 42 U.S.C.A. § 300a-7(d).
2. Shelton v. Univ. of Medicine & Dentistry of New Jersey, 223 F.3d 220 (3d Cir. 2000).
3. Pear R. Protests over a rule to protect health providers. New York Times. November 17, 2008:A14.
4. Press release of the State of Connecticut Attorney General's Office, Hartford, February 27, 2009. (Accessed March 20, 2009, at http://www.ct.gov/ag/cwp/view.asp?A=3673&Q=434882.)
5. Liptak A. On moral grounds, some judges are opting out of abortion cases. New York Times. September 4, 2005.

Thursday, March 26, 2009

Clues to how blood stem cells become activated (adult stem cells)

The National Institute of Health has a news release about research done with NIH funding. The researchers explored how hematopoietic or blood cell producing adult stem cells are activated. The NIH article is very detailed, but easy to read and understand. An adaptation of the press release is at Science Daily.

The research article was published in Nature Cell Biology. (The abstract is free, the article can be purchased by non subscribers, for $18. I think this will be one of the articles that will eventually be published for free, since the research was Federally funded.)

From the NIH Press release:


For Immediate Release
Wednesday, March 25, 2009

E-mail this page
Subscribe Contact:
Robert Bock or Marianne Glass Miller
301-496-5133

Researchers Decipher Blood Stem Cell Attachment, Communication
Finding Has Implications for Leukemia Treatment, Artificially Culturing Blood Cells

Researchers at the National Institutes of Health have deciphered a key sequence of events governing whether the stem cells that produce red and white blood cells remain anchored to the bone marrow, or migrate into the circulatory system.

An understanding of the factors that govern migration of blood stem cells might lead to improved treatment of leukemia, a cancer that affects circulating white blood cells. The findings also have implications for culturing infection-fighting immune cells outside the body, where they could be temporarily held in storage during chemotherapy and other treatments which suppress the immune system. Moreover, the findings could contribute to a strategy for growing large quantities of red blood cells in laboratory dishes outside the body, to reduce the need for blood donations.

Previously, researchers thought that the cellular environment in which the stem cells reside produced the chemical signals that determined whether the cells would be stationary or free–floating. The current study provides evidence that the stem cells produce chemical signals of their own that may, in turn, influence the chemical signals they receive from their environment.

"This important discovery will advance our understanding of how blood cells and immune cells are generated," said Duane Alexander, M.D., director of the NIH’s Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD).

The findings were published on line in Nature Cell Biology. The study was conducted in the laboratory of Jennifer Lippincott-Schwartz, Chief of the NICHD Section on Organelle Biology. The study’s first author was Jennifer Gillette, also of the Section on Organelle Biology. Other authors were Andre Larochelle and Cynthia E. Dunbar of the Hematology Branch of NIH's National Heart, Lung, and Blood Institute.

Dr. Gillette explained that hematopoetic progenitor stem cells — the cells which give rise to red blood cells and immune cells — travel between the bloodstream and the bone marrow. Within the bone marrow, they anchor themselves in place by attaching to bone marrow cells called osteoblasts.

Other studies have shown that osteoblasts secrete a substance that acts as a chemical signal that regulates the attachment of the stem cells. Large amounts of the chemical, which is known as SDF-1 (stromal cell derived factor-1), cause the stem cells to leave the bone marrow and enter the bloodstream. A small, continuous pulse of SDF-1, however, attracts the stem cells and results in their attachment to the osteoblasts.

In laboratory cultures, Dr. Gillette and her coworkers incubated unattached stem cells with osteoblasts. As the stem cells approached the osteoblasts, they developed long, tentacle-like projections, called uropods. The uropods attached to the surface of the osteoblasts. Then, a small portion of a uropod was absorbed inside an osteoblast. The uropod material was eventually sealed inside an endosome — a tiny balloon–like structure within the cell. After the osteoblasts absorbed the uropod material, they began producing SDF-1.

Dr. Gillette noted it appeared to be the stem cell material that stimulated the osteoblast to produce SDF-1, the substance that causes the stem cell to remain attached to the osteoblast or migrate into the blood.

"Our study indicates that stem cells may actually be able to manipulate the signals that they receive from their environment," Dr. Gillette said. "Stem cells seem to have a little more control than we thought."

Monday, March 16, 2009

The "Rescission of the Regulation Entitled 'Ensuring That Department of Health and Human Services Funds Do Not Support Coercive or Discriminatory Policies or Practices in Violation of Federal Law'” was posted on the Federal Register on March 10th, with the announcement of a 30 day period in which to comment. The full announcement can be read here. (PDF Acrobat document) Comments must be made by April 9th.

Please consider taking a look at the website Freedom2Care to learn more about the problem of restricting conscience. You can use one of their forms online to let the Administration and Health and Human Services Secretary Sebelius know how you feel or to tell your story.

To send a comment directly to the HHS, go to the website, http://www.Regulations.gov and fill in the form there or send an email to proposedrescission@hhs.gov.

Saturday, March 07, 2009

Obama will fund more losing embryonic stem cell research (New Yellow Brick Award to the President)

Just days after we hear about functioning induced Pluripotent stem cells from adult skin cells, cells that can produce dopamine, the proteins missing in Parkinson's disease, we read that President Obama is going to overturn the limits on funding for embryonic stem cell research. Despite the fact that these cells match the patient because they come from the patient, that they will be cheaper, more accessible and we believe have less risk of causing cancer, this Monday morning, the 9th of March, 2009, the White House plans a quiet ceremony to sign the Executive Order.

Follow the Yellow Brick Road, Mr. President. The great embryonic Oz will get you home. Do not look behind the curtain, ignore that little man.

"Stroke of the pen, law of the land. Kinda cool!" (Thank you, Paul Begala.) We've been trying to spend a Trillion dollars every 10 days in the Obama administration. Let's just throw more good money after bad.

Typical of the news articles, is this one, from the US News and World Report, entitled (sigh)"Obama to End Stem Cell Ban Monday
Researchers applaud his action, which is expected to kick-start efforts to unlock therapeutic potential."

I recommend that you read that link above, in order to compare reality with what the proponents of destructive embryonic stem cell research believe.

The article is so full of holes. The title and first paragraph say "ban." There never was a ban. Ask Daley and Melton of Harvard who have been creating embryos for destruction to harvest the parts.

And then, there's this gem of an emotional non sequitor, I'm afraid from my State of Texas:

"It's going to remove an embarrassment for American science," said Dr. Darwin Prockop, director of the Texas A&M Health Science Center College of Medicine Institute for Regenerative Medicine at Scott & White Hospital in Temple, said in February. "It's a statement that we're going to again believe in science."

Prockup must have been teased too much about his name as a child. Seriously, who among us stopped and now started to believe in science again?

We are not behind, we are not embarrassed, unless it's in imposing regulations. Even the "Progressives" are calling for more restrictions. The UK has more regulations on regenerative medicine and embryonic research than the US. France, Germany and Israel have similar limits on funding. Germany, at one time had criminal charges and fines attached to their ban.

CIRM has $3 Billion which must be spent on cloning and embryonic stem cell research. Their "Strategic Plan?" (This is a pdf, for a review, read this article at the CIRM website.) One cure and 2 trials in ten years. Who thinks the US is going to top their billions in embryonic research, when results with induced Stem Cells are bounding ahead?

Oh, I know, CIRM thinks the NIH should buy their $400 Million in bonds, this year. No one else wants the losing proposition.

Friday, March 06, 2009

Non-embryonic stem cells to cure Parkinson's?

The journal, Cell, has published an article (free abstract, full article and supplements for purchase) on patient-derived induced Pleuripotent Stem Cells (iPSC's) that appear to be brain neurons that produce dopamine, which is lacking in Parkinson's patients.

Besides being derived from the patient's own skin cells (they won't be rejected and are cheaper and more accessible to more of us than embryonic), and being non-destructive (no embryos destroyed - and, did I say, cheaper and more accessible?), these iPSC's were derived using viruses that can be purposefully, and apparently, fully removed from the culture.

The plans apparently are to use the cells to study the disease. However, with the history of the debate over this disease, I wouldn't be surprised to see them used to treat the donors' Parkinson's disease very soon. Parkinson's is so devastating to patients and their families that several attempts to use brain transplants of aborted embryonic and fetal tissues have been used on real patients, with disastrous results. These iPSC's should be safer than fetal tissues.

Trust me, I have no conscience (Again and again, and again)

Siricou Raven, that gadfly of the prolife blogger, says I'm using scare tactics, that the NHS pays for dialysis, and that we pro-conscience doctors are afraid that 'THE GAYS WILL DESTROY MEDICINE!!!!' Oh, and Bush did it!

Well, what do you expect of people who don't have consciences and who are told by the Powers that be that we must violate any oaths we've taken for money and law?

It's not Gays and Lesbians we're trying to protect ourselves and our consciences from - its their lawyers. Beginning in 2005 and through last month, ACOG broke one of the strongest tenets of modern medicine: Thou shalt not put thy colleagues in greater malpractice risk.

The conscience protection ruling is a synthesis of current laws. The synthesis was only necessary because in 2005, the American College of Obstetricians and the American Board of OBGyn turned their quiet attack on pro-life residency candidates (few programs will accept pro-life doctors) into an effort to change laws (lobbying the US Senate) and amended their own ethics policies to put not only ACOG members, but all doctors at risk of losing their certification, their licenses, and increased our lawsuit risk.

Obama, what's-her-name, and Daschle are bought and paid for by Planned Parenthood and NARAL. (Daschle sent out letters against George Bush in '04, on NARAL's letter head. After the SCOTUS allowed the Partial Birth Abortion Ban, Sebelius vetoed 3 separate bills due to their limits on abortion. And Obama made his famous "first thing I do is sign FOCA" speech to PP)

Most people have access to the $4 Walmart drugs. Our little town has 2 low cost clinics, one is free of charge, one has a cost of less than $5. Everyone who can raise the money can have the latest and greatest -- not so in the NHS. A few years ago, it was illegal to sell Tamiflu in Great Britain, because NICE said it was.

Years before that, Dialysis was limited to those under 55 years old. Echoing that, this year, a man in his 50's was told he would not get surgery to stabilize his ankle until he kicked his nicotine habit.
http://www.dailymail.co.uk/news/article-481617/Doctors-refuse-fix-builders-broken-ankle-unless-quits-smoking.html

Our hospital has indigent care, as does our County. We doctors see patients for cash and are aware when their costs are out of pocket. (My phone has a program that has formularies for local insurance plans. The patient and I discuss whether they want the once a day Tier 4 drug, the twice a day Tier 3 or the 4 times a day generic.)

Wednesday, March 04, 2009

This is your future on Government Medicine

Imagine that it is 2016, and you are a 65 year old boomer. You have been admitted to your local community hospital with malaise, fatigue, vomiting and cloudy mental status. You have had blood pressure problems and diabetes for a few years, and have just been diagnosed with renal failure. As you drift in and out of consciousness, you are vaguely aware your old family practice physician, who had taken care of you for 20 years, is not around. A religious man, he quietly retired from medical practice in 2014, after the full force of the Obama administration‘s removal of conscience protection for physicians in February, 2009, came into effect.
Read the whole article for a chilling look at the future and a concise review of how we got to this point.

Bravo, Dr. Davenport!

Tuesday, March 03, 2009

Goodbye Medicare, hello County Clinic

Where is the outrage over the destruction of (what is left of) Medicare and the debt we owe to veterans? I'm afraid that we're not talking about "Medicare for all," or even "Medicaid for all." We're talking about County Clinic for all.

For a look at the proposed cuts in cost for Medicare, take a look a this table.

Consider that "reduce costs for re-admissions" and the "bundling" of hospital and outpatient costs after a hospitalization.

That means that Medicare will only pay a flat fee to the hospital for any hospitalization and follow up care after the hospitalization and will not pay if the patient has to be readmitted for complications or a new illness within a certain period of time. Patients would not be able to return to their family doctor for follow up care, unless the doctor works for the hospital. And there would be a lot of pressure to keep patients out of the hospital.

People who "cost" Medicare the most money would be encouraged to forgo care. I predict a huge push for hospice care for anyone with complicated, chronic diseases. (Or, possibly, a back-alley, underground medical care system for cash and barter. Wonder how long that will be legal?)

The AMANews reports that coordination of care doesn't lower costs to Medicare, only 2 out of 15 of the model centers cut patients' days in the hospital, and that the coordination is burdensome for small and solo practices. For every 100 patients, we interact with 99 other doctors in other practices. (I knew it was a lot.) (I don't think any of these links require subscription, let me know if there's a problem.)

This is my favorite part from that article:

"It doesn't matter if you back up a truck to their offices and drop off bundles of money," Dr. Norman said. "They don't have the time, resources or expertise right now to put this all in place."


Speaking of "bundles of money," the stimulus has a chunk to support Community Health Centers, as reported by Reuters' Maggie Fox. Will these centers really be open longer hours, as advertised, and will they continue to mandate the hiring of mid-levels (Nurse Practitioners or Physician Assistants), rather than allowing the hiring of physicians with the grants, as currently the case for other Federally funded clinics?

The budget includes plans to pay for the 667 Billion dollar health care for all by cutting payments to “providers” (including doctors and hospitals, pharmacists and wheel chair companies), according to the Wall Street Journal. We're already scheduled to have that automatic “Sustainable Growth Rate” 20% cut in Medicare payments to doctors, next year. Want to bet that the cut won't go through and/or won't be considered part of the "savings"? (And mesh with the President’s plans to cut the deficit.)

That WSJ and the LATimes articles also mention a “public” health care plan, and possible new taxes (on the employer’s portion of insurance payments or a new income tax).

Speaking of which, the Massachusetts mandatory health insurance trial isn’t working - even to make sure that people have insurance or are able to see their doctor in a timely manner - according to the Boston Globe The solution? That old United States National Health Insurance Act, paid for by "a modest progressive tax."

Monday, March 02, 2009

AMA: "People aren't going to waste time on Embryonic Stem Cells, anymore"

A member of the "lobby group Comment on Reproductive Ethics" maintains that there are "some scientists who like to hold on to what they've got, but" she doesn't "think people are going to waste time on embryonic stem cells any more."
(Josephine Quintanelle, quoted in the Guardian, 3/1/09)

The American Medical Association sends its members a "Morning Rounds" email with the latest headlines on science and medicine. The articles have more links than my posts and the editors seem to choose that days' big story.

Today's big story is that the Washington Post (free registration required) reports on a from a Letter to the journal, Nature. Two groups of scientists, one from Toronto (Andras Nagy, from the University of Toronto) and another from Edinburgh (Dr Keisuke Kaji, at the Medical Research Council Centre for Regenerative Medicine at the University of Edinburgh) have found a way to make skin cells transform into embryonic-like stem cells without using viruses.

This should lead to a cheaper way for people to have their own cells transformed into therapies. Farther down the line, it could help us treat disease and injury -and aging - in place, by inducing repair where it's needed and without transplants. On the other hand, if we use embryonic stem cells, it would be necessary to make a clone of each person or find some sort of universal donor cell that would not be rejected. The previous way of reprogramming cells to an embryonic stage used viruses that could not be removed and which have the potential to cause cancer if left in the DNA of the cells.

The scientists used human fibroblasts - a type of skin cell - which were treated with a "jumping gene" from a cabbage looper moth, that inserts itself into chromosomes along with the genes that "reprogram" the fibroblast -- then, the extra gene can be removed.

From the Post, a very clear description.

The alternative cells, known as induced pluripotent stem cells, or iPS cells, appear to have many of the same characteristics as embryonic stem cells but are produced by activating genes in adult cells to "reprogram" them into a more primitive state, bypassing the moral, political and ethical issues surrounding embryonic cells. Until now, however, their use has been limited because the genetic manipulation required the use of viruses, raising concerns the cells could cause cancer if placed in a patient. That has triggered a race to develop alternative approaches.

"These viral insertions are quite dangerous," Nagy said.

In the new work, Nagy and his colleagues in Toronto and at the University of Edinburgh in Scotland instead used a sequence of DNA known as a transposon, which can insert itself into the genetic machinery of a cell. In this case, the researchers used a transposon called "piggyBac" to carry four genes that can transform mouse and human embryonic skin cells into iPS cells. After the conversion took place, the moth gene, called "piggybac" lost its ability to insert itself into the chromosomes of the cells and "disappear" or can be removed.

"PiggyBac carries the four genes into the cells and reprograms the cells into stem cells. After they have reprogrammed the cells, they are no longer required, and in fact they are dangerous," Nagy said. "After they do their job they can be removed seamlessly, with no trace left behind. The ability for seamless removal opens up a huge possibility."


Unfortunately, for some reason the scientists used (non-stem) fibroblast cells from embyros as the cells that are reprogrammed, so the research is being repeated in cells from non-embryonic sources.

Other news articles on the breakthrough are at BBC News, Nature News,
AFP, Financial Times, the Candian Press, the Guardian and the Globe and Mail.