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Scientists make beating heart in laboratory
MINNEAPOLIS / ST. PAUL (January, 13 2008) — University of Minnesota researchers have created a beating heart in the laboratory.
By using a process called whole organ decellularization, scientists from the University of Minnesota Center for Cardiovascular Repair grew functioning heart tissue by taking dead rat and pig hearts and reseeding them with a mixture of live cells. The research will be published online in the January 13 issue of Nature Medicine. (more…)
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Continue reading...Scientists make embryo clone of men.
19. January 2008
US scientists say they have produced embryos that are clones of two men, in an attempt to produce patient-specific stem cells.
Researchers removed DNA from donated human eggs, and replaced it with DNA from the skin cells of two volunteers.
They produced embryos with genetic material that matched the men’s, but did not go on to extract stem cells.
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Continue reading...When only mum or dad matters
15. December 2007
The textbook rule that says activated human genes almost always express both of their copies — the one inherited from mum and that inherited from dad — seems not to be true. Instead, a good chunk of our genome could prefer the ’single life’, according to new research.
Whether the maternal or paternal copy gets switched on in such cases seems to be random. But the result could have a big impact on disease susceptibility and other biological traits.
(more…)
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Continue reading...Gene responsible for making us,”once bitten twice shy” identified.
15. December 2007
Most people tend to learn from their mistakes and avoid a similar fate in the future. Now, researchers have found that the reason we are able to do so, is because of a gene that makes us once bitten, twice shy.The researchers behind the finding are Tilmann Klein and Markus Ullsperger at the Max Planck Institute for Human Cognitive and Brain Sciences in Leipzig, Germany.
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Continue reading...HIV attack
10. December 2007
A brilliant animation showing the the mechanism of HIV attack.
NOTE: This video is is strictly intended for education and non-commercial use only.
SOURCE:xvivo.net
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Chicklets
22. January 2008
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