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Monday, February 19, 2007

Continous replicant teeth.

Der Spiegel Courtesy:1) Above: dental embryo technique 2)Lower:Embryo dental mouse nodule.
The news are encouraging, for million of people who lose their teeth because of decay or diverse diseases. A group of Japanese investigators led by Takashi Tsuji of the University of Tokyo, extracted dental nodules of embryos of mice, separated ectodermic and mesenchymal cells, letting them grow separately (cultures), returning them to unite after adding to them collagen gel generating multiple dental nodules. Soon they made jaw cuts in which they implanted the generated nodules, forming perfect teeth in 14 days. Tsuji, predicts that the technique also will be successful in humans (Nature Methods).

Dientes nuevos una y otra vez.

La noticia es alentadora, para millones de personas que pierden sus dientes a causa de caries o enfermedades diversas. Un grupo de investigadores japoneses liderados por Takashi Tsuji de la Universidad de Tokyo, extrajeron nódulos dentales de embriones de ratones, separaron de ellos celulas ectodermicas y mesenquimales, haciendolas crecer por separado (cultivos), volviendolas a unir generando múltiples nódulos dentales al agregarles gel de colagena. Luego realizaron incisiónes mandibulares en los que se implantaronn los nodulos generados, formando dientes perfectos en 14 dias. Tsuji, vaticina que la técnica tambien será exitosa en humanos (Nature Methods).



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