FDA panel rejects Zimmer spine implant

Federal health advisers on Wednesday rejected an implant from Zimmer Holdings saying it's unclear how effective or safe the device would be for treating a painful spinal condition.

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FDA questions role of payments in Zimmer study

Federal health officials say an implant from Zimmer Holdings Inc. appears to be effective in treating spinal problems, but questions remain about whether company payments to doctors influenced the device's trial data.

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Some of the common words we use are frozen mistakes. The term influenza comes from the Italian word meaning "influence"—an allusion to the influence the stars were once believed to have on our health.

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Scientists today who study the origin of life do not share Darwin's pessimism about our ability to reconstruct those early moments.

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The experiment was launched by MSU biologist Richard Lenski. I wrote about Lenski's work last year in the New York Times, and in more detail my new book Microcosm. Lenski started off with a single microbe.

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It may come as a surprise to see scientists struggling to agree on something so basic as how to decide that a group of organisms form a species.

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Carl Zimmer, in his blog The Loom, tells you everything you ever wanted to know about mushrooms.

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Fossils of a dinosaur species called Guanlong discovered. This article contains a link to the original Nature text plus a simplified breakdown explaining where this species falls on the T-Rex species tree, with some final conclusions about sexual displays.

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A short, interesting read about the way global warming has influenced the habitats of certain tree frogs, using research from a study that will be published tomorrow.

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