Studying how stem cells move in the body is a critical step to understanding cancer. Researchers have just provided a window into this process by building a machine that beams flatworms with x-rays that kill just enough stem cells to allow the others to move freely around while being tracked.
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The Two Headed Worm From Space! It certainly sounds like a good pulpy science fiction story from the 1950s, but in fact, when researchers from Tufts university sent a bunch of flatworms up to the International Space Station, that's exactly what they wound up with.
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Some of our closest invertebrate cousins, like this Acorn worm, have the ability to perfectly regenerate any part of their body that's cut off - including the head and nervous system. Humans have most of the same genes, so scientists are trying to work out whether human regeneration is possible too.
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Humans can regrow some tissue after damage, but we can only look on in envy at the humble axolotl. Scientists are studying the genetics of axolotls and other animals in order to learn more about the possibility of giving humans similar limb regeneration capabilities.
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Researchers have been able to restore partial vision in mice by regenerating previously severed optic-nerve cables. It’s the first time researchers have succeeded in restoring important aspects of vision in mammals, and the breakthrough could lead to future work that restores sight in the blind.
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Scientists have discovered a way to reprogram bone and fat cells to become stem cells that can regenerate multiple tissue types. The technique has already proved successful in mice and could be just a few years away from being safely available for regenerating any damaged tissue in humans.
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Biologists have successfully induced flatworms of a specific species to grow the head and brain you'd expect to find on another species. The breakthrough adds to our understanding of exactly what governs the growth of anatomy.
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The residents of New York's South Bronx suffer from relatively high levels of diabetes, childhood asthma and pedestrian injuries. A new initiative called the Haven Project is planning to use green open spaces to combat these issues.
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