Toronto: With the help of a new sequencing technology, scientists have isolated a gene linked to mental retardation.Mental retardation, also called intellectual disability, denotes certain limitations in mental functioning and in skills such as communicating, taking care of oneself, and social skills.John Vincent, senior scientist at the Centre for Addiction and Mental Health (CAMH) and colleagues, identified defects on the gene MAN1B1, among five families having children with intellectual disability, reports the American Journal of Human Genetics.The individuals affected had similar physical features, and all had delays in walking and speaking. Some learned to care for themselves, while others needed help in bathing and dressing. In addition, some had epilepsy or problems with overeating, according to a CAMH statement.
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