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Latest OSR2 Stories

2009-02-26 13:37:00

Same Study Uncovers How Each Tooth Signals the Next to Start Growing ROCHESTER, N.Y., Feb. 26 /PRNewswire-USNewswire/ -- A system of opposing genetic forces determines why mammals develop a single row of teeth, while sharks sport several, according to a study published today in the journal Science. When completely understood, the genetic program described in the study may help guide efforts to re-grow missing teeth and prevent cleft palate, one of the most common birth defects. Gene...

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2009-02-26 15:25:00

Scientists have reported new insights gathered from a single gene that could one day be used to help adults grow a new set of teeth. Scientists from the University of Rochester bred mice that lacked the oddskipped related-2 (Osr2) gene. They noted that mice that lacked the gene grew an extra set of teeth next to their molars in similar fashion to sharks and other non-mammals. "It's exciting. We've got a clue what to do," Dr. Songtao Shi of the University of Southern California School of...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.