Los científicos en China dicen que han hecho crecer con éxito un diente humano utilizando células madre extraídas de la orina. Los investigadores dicen que la técnica podría algún día ser usada como una forma de reemplazar los dientes perdidos por el envejecimiento y la mala higiene dental, con la ventaja añadida de que la orina se considera una fuente menos polémica de las células madre de embriones humanos.
#0 #0 Scientists se traduciría por "científicos" sin "los". No son TODOS los científicos sino ese grupo en concreto.
Parece que la comunidad científica no está por la labor: “However the project has received has attracted criticism, and not just because it has only a 30 per cent success rate in its current form”.
Correction: Details of how the stem cells were used have been clarified since this article was first published on 30 July.
Sigue habiendo reticencias. Mark Bartold from the University of Adelaide in Australia, who works on regenerative dental medicine. "It doesn't take a genius to figure out there's a big difference between an incisor and a molar tooth," he says. "That's going to be very tricky, because we don't really fully understand what's involved in that development."
Pei agrees, but says having natural replacement teeth available to fit into the right slots in the mouth may be of benefit. He also notes that the teeth his team grew were a bit softer than real teeth, which might be because they were not being used as they grew. "We do not have the physical stimulations found in the mouth," he says. http://www.newscientist.com/article/dn23957-shiny-new-teeth-concocted-from-mice-and-human-urine.html#.UfkSFKzLKy-
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#0 #0 Scientists se traduciría por "científicos" sin "los". No son TODOS los científicos sino ese grupo en concreto.
Parece que la comunidad científica no está por la labor: “However the project has received has attracted criticism, and not just because it has only a 30 per cent success rate in its current form”.
#1 Editado, gracias
Dicen
repito
dicen
#3 Efectivamente, el periódico "dice", el cientíco PEI "afirma. En cualquier caso está generando muchas críticas:
Este es el artículo en cuestión: Generation of tooth-like structures from integration-free human urine induced pluripotent stem cells http://www.cellregenerationjournal.com/imedia/1338585422989841_article.pdf?random=614086
Correction: Details of how the stem cells were used have been clarified since this article was first published on 30 July.
Sigue habiendo reticencias. Mark Bartold from the University of Adelaide in Australia, who works on regenerative dental medicine. "It doesn't take a genius to figure out there's a big difference between an incisor and a molar tooth," he says. "That's going to be very tricky, because we don't really fully understand what's involved in that development."
Pei agrees, but says having natural replacement teeth available to fit into the right slots in the mouth may be of benefit. He also notes that the teeth his team grew were a bit softer than real teeth, which might be because they were not being used as they grew. "We do not have the physical stimulations found in the mouth," he says. http://www.newscientist.com/article/dn23957-shiny-new-teeth-concocted-from-mice-and-human-urine.html#.UfkSFKzLKy-