Artificial organs
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Scientists have created models of human embryos by programming stem cells. The models give a glimpse into a key stage of development that can reveal new insights into genetic disorders and preventing failure in early pregnancy.
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In a historic procedure surgeons have, for the first time, transplanted a genetically modified pig heart into a living human. The patient is still alive, has not rejected the organ and is being monitored at the University of Maryland Medical Center.
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Patients with kidney failure require regular dialysis, an invasive and potentially risky treatment. But now researchers have successfully demonstrated a prototype bioartificial kidney, which can be implanted and works without the need for drugs.
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Spanish researchers have created a new potential treatment for age-related macular degeneration, which is currently untreatable – a biohybrid artificial retina, made of silk and loaded with new human cells that can integrate and repair the damage.
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The human eye is incredibly complex, so it's very hard to reverse engineer. Now researchers have unveiled the world’s first 3D artificial eye, which can not only outperform other devices but has the potential to see better than the real thing.
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Imagine needing a liver transplant and, instead of waiting for a donor, a new one could just be grown from your own skin cells. In a big step towards this, mini human livers grown from stem cells have been successfully transplanted into rats.
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Researchers at MIT have developed a bionic heart to test heart valves and other cardiac implants under realistic conditions. Built out of an actual living heart, the new device promises improved designs and less expensive development cycles.
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Scientists have pieced together 10 devices that mimic the functions of different organs to create a functioning Body-on-Chips platform, which can offer new and comprehensive insights into how prospective drugs will behave throughout the human body.
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Organ development has traditionally been tricky to study, thanks largely to the difficulty in getting sensors in there without damaging the organs. Now, researchers from Harvard have developed a way to create “cyborg organoids” by integrating nanoelectronics into cell cultures.
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The placenta may be one of the least understood organs, but it’s important to study its effects on the health of a developing fetus. Researchers at Iowa State University have used microfluidic models of the organ, a placenta-on-a-chip, to see if, and how much, caffeine can cross from mother to baby.
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It's difficult to study how the heart reacts to diseases and medications. Researchers at Harvard have now grown a model of a human left ventricle that spontaneously beats, marking a substantial step towards engineering entire hearts for more accurate testing of new treatments.
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The one artificial heart that's approved for human use in the US is only intended to keep patients going until they can get a heart transplant. A new device being developed by the Oregon Health & Science University, however, is designed to be a permanent fix.
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