publicado em 13/01/2013 às 11h15:00
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Increased lifespan increases risk of developing Alzheimer's

According to a researcher at UFRJ, nanotechnology can help prevent the natural decay of the body with aging

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The increase in the lifetime of the world population and median survival of people elevates the likelihood that they will develop Alzheimer's disease, told Agencia Brazil neurologist Soniza Leon, University Hospital Clementino Fraga Filho, Universidade Federal do Rio de Janeiro (UFRJ).

All people who live many years may have Alzheimer's. The more you live, the greater the chance of having a dementia, said the expert, who is also a professor of neurology at the Federal University of the State of Rio de Janeiro (Unirio).

She said resources such as nanotechnology, which allows reducing the oxidative mechanism of neurons, may help prevent the deterioration of the body with natural aging. In certain populations whose individuals live to over 100 years, is being studied is the genetic factor contributes to protect them from this type of dementia.

Alzheimer's disease causing degeneration of the nervous system. It is characterized mainly by dementia or loss of cortical functions, among which stand out the language, the ability of perception, abstract reasoning, critical judgment and memory. Of all the phenomena that involve decision making, affection, humor. All these cortical functions are impaired in this disease.

In the case of language impairment, for example, the person loses the ability to communicate or understand what he is asked, the memory starts to get too impaired to recent events. For past events, it is preserved, although for a while, before getting lost.

Regarding the ability to move the patient with Alzheimer's has no paralysis, but has what doctors call apraxia of gait. It is the loss of ability to produce a motor act at first voluntary, then automatic and involuntary. It's like a child when he is learning to walk: she walks with leg open, with difficulty, because it has the automation of the march, said.

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Alzheimer's    University Hospital Clementino Fraga Filho    Universidade Federal do Rio de Janeiro    UFRJ   
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