Page last updated at 10:19 GMT, Thursday, 19 August 2010 11:19 UK

The hunt for the cure to Huntington's disease

Will Grant reports from the Venezuelan town of Barranquitas - on the shores of Lake Maracaibo - which US scientist Nancy Wexler believes holds the key to finding a cure for the neurological disorder, Huntington's disease.

Watch Will Grant's film from Venezuela in full on Newsnight on Thursday 19 August 2010 at 10.30pm on BBC Two, BBC iPlayer and Newsnight website.

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