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Stem cells

NPR
Shots - Health News
This synthetic fish is powered by human heart cells. Scientists say that they could help lead the way toward building replacement hearts from human tissue.

Watch these robotic fish swim to the beat of human heart cells

Feb 10, 2022
Tiny, robotic fish powered by human heart cells suggest that scientists are getting closer to their goal of building replacement hearts from living tissue.
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NPR
Shots - Health News
These human embryo-like structures (top) were synthesized from human stem cells; they've been stained to illustrate different cell types. Images (bottom) of the "embryoids" in the new device that was invented to make them.

Scientists Create A Device That Can Mass-Produce Human Embryoids

Sep 11, 2019
Researchers hope large numbers of very primitive, embryo-like structures will lead to new insights into early human development and ways to prevent miscarriages and birth defects.
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NPR
Shots - Health News
Immature human eggs (pink) were created by Japanese researchers using stem cells that were derived from blood cells.

Scientists Create Immature Human Eggs From Stem Cells

Sep 20, 2018
A Japanese research team made immature human eggs from stem cells that were derived from human blood. The technique brings scientists a step closer to being able to mass-produce human eggs.
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NPR
Shots - Health News
Evangelina Padilla-Vaccaro, now cured of a serious genetic illness — thanks to a successful stem cell treatment — playing recently in a public park. The bubble around her is just for fun.

Will State Voters Continue To Pour Money Into Stem Cell Research?

Jan 25, 2018
California alone has spent billions in state funds over the last 14 years to support stem cell research. Scientists want another round of cash. So, what exactly did voters get for their money so far?
NPR
Shots - Health News
Adult stem cells can be extracted from human fat.

FDA Cracks Down On Stem-Cell Clinics Selling Unapproved Treatments

Aug 28, 2017
The companies are "unscrupulous actors" marketing stem-cell treatments that have not been proved effective and may be dangerous, the FDA says. It took action against clinics in Florida and California.
NPR
Shots - Health News
Chandan Sen, a researcher at Ohio State University, holds a chip his lab created that has reprogrammed cells in mice.

A Chip That Reprograms Cells Helps Healing, At Least In Mice

Aug 08, 2017
This device shoots new genetic code into cells to make them change their purpose. Researchers say the chip could someday be used to treat injuries in humans. But they've got a long, long way to go.
NPR
Shots - Health News
When the neurons that release the neurotransmitter dopamine die, people develop Parkinson's disease.

Brain Cell Transplants Are Being Tested Once Again For Parkinson's

Jun 13, 2017
In 2003, researchers declared a moratorium on the use of transplanted brain cells to treat Parkinson's disease. Now, armed with better cells, they're giving the approach another try.
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NPR
Shots - Health News
A colored scanning electron micrograph of two human retinal stem cells, shown in brown and red.

3 Women Blinded By Unproven Stem Cell Treatments

Mar 15, 2017
Three patients were blinded after getting stem cells from fat at a Florida clinic. But a research study showed that induced pluripotent stem cells might someday help treat vision loss.
NPR
Shots - Health News
Embryoids like this one are created from stem cells and resemble very primitive human embryos. Scientists hope to use them to learn more about basic human biology and development.

Embryo Experiments Reveal Earliest Human Development, But Stir Ethical Debate

Mar 02, 2017
Researchers who study developing human embryos have long limited their experimentation to lab embryos that are no more than 14 days into development. Some scientists are now pushing that boundary.
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NPR
Shots - Health News
In a cluster of glowing human stem cells, one cell divides. The cell membrane is shown in purple, while DNA in the dividing nucleus is blue. The white fibers linking the nucleus are spindles, which aid in cell division.

Glowing Human Cells May Shed Light On Sickness And Health

Nov 30, 2016
Researchers who developed a collection of human stem cells with glowing internal structures have begun sharing them with colleagues. The glow reveals the secret workings of cells.
NPR
Shots - Health News

Researchers Question Safety, Value Of Untested Stem Cell Treatments

Sep 05, 2016
Clinics are using stem cells to treat problems ranging from arthritis and torn tendons to paralysis and stroke. But researchers say there's no evidence that the treatments work or are safe.
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NPR
Shots - Health News
In this file photo, a professor holds a tray of stem cells at the University of Connecticut. The NIH plans to lift a moratorium on funding studies using human stem cells in animal embryos.

The Chimera Quandary: Is It Ethical To Create Hybrid Embryos?

Aug 07, 2016
The National Institutes of Health proposed lifting its moratorium on funding for research on part-animal, part-human embryos — which raises a huge dilemma, says bioethicist Insoo Hyun.
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NPR
Shots - Health News
Pablo Ross of the University of California, Davis, inserts human stem cells into a pig embryo as part of experiments to create chimeric embryos.

NIH Plans To Lift Ban On Research Funds For Part-Human, Part-Animal Embryos

Aug 04, 2016
The National Institutes of Health is proposing to fund experiments that create chimeras of human and animal cells while also imposing restrictions in response to ethical concerns.
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NPR
Shots - Health News
Pablo Ross of the University of California, Davis inserts human stem cells into a pig embryo as part of experiments to create chimeric embryos.

In Search For Cures, Scientists Create Embryos That Are Both Animal And Human

May 18, 2016
Researchers experimenting with chimeric embryos say they could develop into adult pigs, sheep or cows with human organs that one day might be suitable for transplantation in people.
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NPR
Shots - Health News
Human stem cells, in this case made from adult skin cells, can give rise to any sort of human cell. Some scientists would like to insert such cells into nonhuman, animal embryos, in hopes of one day growing human organs for transplantation.

Should Human Stem Cells Be Used To Make Partly Human Chimeras?

Nov 06, 2015
The National Institutes of Health has issued a moratorium on funding work that puts human stem cells into nonhuman embryos. The concern is that hybrids might develop human brain cells, sperm or eggs.
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NPR
Shots - Health News
Image of a mini-kidney formed in a dish from human induced pluripotent stem cells.

Scientists Grow Primitive Human Kidneys In A Dish

Oct 07, 2015
Scientists have tried for years to grow artificial kidneys in the lab. They've gotten a bit closer by using stem cells to create an "organoid" much like a fetal kidney. But it's missing key parts.
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NPR
Shots - Health News
In 1954, Dr. Frederick C. Robbins, then chief of pediatrics and contagious diseases at Cleveland Metropolitan General Hospital, was one of three winners of that year's Nobel Prize in medicine. The scientists' work, which led to a vaccine against polio, w

Research On Fetal Tissue Draws Renewed Political, Scientific Scrutiny

Sep 29, 2015
Critics say research on fetal tissue is no longer needed to answer crucial medical questions. But National Institutes of Health officials and other scientists say alternatives don't yet measure up.
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NPR
Shots - Health News
It's now possible to edit the DNA in a human embryo. The next question is, should we?

British Scientists Seek Permission To Edit DNA In Human Embryos

Sep 18, 2015
After Chinese scientists announced in April that they had edited the genes in human embryos, many researchers said it shouldn't be done. Scientists in London say they want to do it for research only.
NPR
Shots - Health News
Loki's Castle, the field of deep sea vents between Norway and Greenland, is home to sediments containing DNA from the newly discovered archaea.

Missing Link Microbes May Help Explain How Single Cells Became Us

May 06, 2015
Near a field of deep sea vents between Norway and Greenland, scientists discovered the DNA of microbes that seem to be primitive archaea, but with a lot more genes — typical of complicated creatures.
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