Turkish family walk on all fours because of genetic mutation - video

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Turkish family walk on all fours because of genetic mutation - video

The Ulas family is a large Kurdish family of 19 from rural southern Turkey, five (except for another, who had died) of whom walk on all fours with their feet and the palms of their hands in what is called a "bear crawl".

Their quadrupedal gait has never been reported in anatomically intact adult humans. The gait is different from the knuckle-walking quadrupedal gait of apes. In 2006, the family was the subject of a documentary: The Family That Walks On All Fours.

The affected siblings have a form of non-progressive congenital cerebellar ataxia. The brain impairments include cerebellar hypoplasia, mild cerebral cortex atrophy and a reduced corpus callosum. They are also mildly retarded and have problems in balancing on two legs. However, they do not show the poor coordination of hands, speech, and eye movements often found in cerebellar ataxia. The four sisters can do needlework. They all share a recessive mutation on chromosome 17p.

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By netchicken: posted on 25-7-2010








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