Professor David Sinclair also works in Boston at an ageing laboratory at Harvard Medical School.

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Dr David Sinclair, from Fife, said the image of gambling as fun and safe masked the "dark side" of addiction.

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In 2003 a team led by David Sinclair of Harvard Medical School described 19 plant-derived molecules that activate sirtuins in yeast.

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David Sinclair, from Victim Support Scotland, said he did not reject the idea completely, but that it would need some "very deep thinking".

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Its cofounder, Harvard biologist David Sinclair, had published studies showing evidence that large doses of the resveratrol chemical in red wine extends the lives of fat mice.

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David Sinclair, who worked as a postdoc in Guarente's lab in the late 1990s, took up the challenge after establishing his own rival lab at Harvard Medical School in 1999.

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One such is David Sinclair of Harvard University.

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Ruddy gave away the penalty in a one-on-one with Swans striker Scott Sinclair but brushed himself off to tip David Cotterill's spot-kick on to the post.

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