Tag Archives: Heart

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Doctors grow new trachea from patient’s own adult stem cells

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From the Wall Street Journal.

Excerpt:

Doctors have replaced the cancer-stricken windpipe of a patient with an organ made in a lab, a landmark achievement for regenerative medicine. The patient no longer has cancer and is expected to have a normal life expectancy, doctors said.

[…]The windpipe is a hollow tube, about 4.5 inches long, leading to the lungs. A key part of it is a scaffold—which functions like a skeleton for the organ—consisting of tissues such as cartilage and muscle. As a first step, a team led by Alexander Seifalian of University College London used plastic materials and nanotechnology to make an artificial version of the scaffold in the lab. It was closely modeled on the shape and size of the Eritrean man’s windpipe.

Meanwhile, researchers at Harvard Bioscience Inc. of Holliston, Mass., made a bioreactor, a shoe-box-size device similar to a spinning rotisserie machine. The artificial scaffold was placed on the bioreactor, and stem cells extracted from the patient’s bone marrow were dripped onto the revolving scaffold for two days.

With the patient on the surgery table, Dr. Macchiarini and colleagues then added chemicals to the stem cells, persuading them to differentiate into tissue—such as bony cells—that make up the windpipe.

About 48 hours after the transplant, imaging and other studies showed appropriate cells in the process of populating the artificial windpipe, which had begun to function like a natural one. There was no rejection by the patient’s immune system, because the cells used to seed the artificial windpipe came from the patient’s own body.

Another success for ethical adult stem cell research.

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Adult stem cells used to grow a new heart

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From Life Site News. (H/T Letitia)

Excerpt:

Researchers at the University of Minnesota used adult stem cells to create a living human heart that they hope will revolutionize transplants.

The breakthrough, said lead researcher Dr. Doris Taylor, could ultimately mean that “donated” hearts are no longer used in transplant operations, circumventing the ethical problems involved in organ donation and obviating the need for drugs to combat immune system rejection.

Dr. Taylor, director of the university’s Center for Cardiovascular Repair, is one of the world’s leaders in heart organ repair and regeneration and has said it is her goal to create a living heart that can be transplanted into a patient, entirely out of stem cells.

She presented her team’s findings at the American College of Cardiology’s annual conference in New Orleans.

“The hearts are growing, and we hope they will show signs of beating within the next weeks,” she told the Daily Mail. “There are many hurdles to overcome to generate a fully functioning heart, but my prediction is that it may one day be possible to grow entire organs for transplant.”

The breakthrough is a follow-up on work Dr. Taylor completed in 2008 in which her team used stem cells to rebuild the hearts of rats. They removed all the muscle cells in a rat heart, leaving just a “scaffold” of other tissues such as blood vessels and valves. This scaffold was then repopulated with stem cells, which took their cues from the scaffold tissue to regenerate healthy, functioning heart muscle.

Another scientific breakthrough for ethical adult stem cells.

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Ohio Republican proposes ban on abortions after baby has a heartbeat

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Unborn baby scheming about moving to Ohio
Unborn baby scheming about moving to Ohio

From Fox News.

Excerpt:

An unborn child’s heartbeat can be detected as soon as 18 days after conception, and supporters of a bill slated to be unveiled in the Ohio Legislature Wednesday say that women should be prohibited from ending pregnancies beyond that milestone.

State Rep. Lynn Wachtmann is planning to unveil the “Heartbeat Bill” and a legislative aide for the Republican tells Fox News that 42 of the 99 representatives in the Ohio state House have signed on to the bill, which would make an exception to the heartbeat rule only in emergency medical situations.

According to 2009 data from the Ohio Department of Health, 56.6 percent of abortions in that state occur in the first nine weeks of pregnancy. And since the fetal heartbeat appears on monitors by six weeks into gestation in most cases, supporters of the bill believe that it could prevent thousands of abortions.

“When the Heartbeat Bill passes, it will be the most protective law in the nation,” Janet Folger Porter, president of conservative advocacy group Faith2Action, said in a release. Porter helped craft the bill, and was also instrumental in passing the nation’s first ban in partial-birth abortion when she was legislative director of Ohio Right to Life.

[…]And though Porter and former Ohio Right to Life president Linda Theis vocally support the Heartbeat Bill, the pro-life organization’s current executive director says the legislation is destined for failure.

“Unfortunately, the Heartbeat Bill will not survive a court challenge, and therefore not save one life,” Ohio Right to Life executive director Michael Gonidakis told Fox News, arguing that state courts and the Supreme Court would slap down the heartbeat cut-off in the same way they would reject a full abortion ban. “Because the Supreme Court, unfortunately, has ruled on countless occasions that any restrictions on abortion pre-viability are unconstitutional,” he says.

And in Georgia, another Republican is proposing a bill to ban all abortions once the unborn baby can feel pain. Can you imagine causing pain to a helpless little baby? That would be horrible – but that is exactly what abortion does. So, I hope both of these pro-life bills pass.

I also must note that poets will play no part in these initiatives to restrict abortion. These pro-life legislative efforts will be fought by lawyers and judges who have advanced legal training – training that takes effort and money to achieve. And their case will be grounded in science, not in poetry. The pro-abortion side is grounded in poetry, feelings and sad stories about poor, poor women who are not responsible for their own choices. The pro-life side is grounded in reason and evidence. And the more reason and evidence the pro-life side can muster, the stronger their case will be in the only place where it really matters – the legislatures and the courts.