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Archive for August, 2008

normal aging or alzheimer

Over the age of senility, the various functions of the organs also decreased, including the brain. As a result, problems arise in memory or in a certain condition called senile.

Often forget to do something, it may be ordinary people aged above 60 years. Studies conducted in the United States, will be the order of the brain degenerate over the age of growing even though the person is physically healthy.

Studies published in the journal Neuron that is part of an effort to researchers at Harvard University to understand the difference between the decline of norms related to age and clinical damage.

“We are trying to understand the end of the boundary between the normal aging and Alzheimer’s Disease,” said Professor Randy Buckner of Harvard University.

Alzheimer is a disease of the brain degenerative progressive condition with brain cells damaged and die. Therefore lead to interference or senility demensia, namely disturbed memory functions (power remember), speak, think and behave. This disease is a scourge in the age group over 60 years. Though in its development, it also began to haunt those who are aged 40-50 years.

To know the differences between normal Alzheimer and aging, Buckner and colleagues took brain images from 55 examinations of adults aged 60 years and more, and 38 adults in the younger age of 35 years and younger.

The researchers use a technique called imaging PET to detect the presence of “amyloid”, chemicals that are specifically associated with Alzheimer’s Disease to override the power of deterioration caused by a mind disease.

In fact found that the system is part of the brain becomes less organized in conjunction with the development of the age. “It appears that the impact of normal aging irrespective of Alzheimer’s Disease,” Buckner said the researchers from the Howard Hughes Medical Institute to Reuters.

The researchers found that the order of the brain called the “white line problem”, which brings information among the different brain, only declining in the older age group of people.

“In adults, the young, the front of the brain neatly arranged with the back of the brain,” said Jessica Andrews-Hanna, university graduates in the laboratory Buckner.

He added that the adults who are older is not such a case. Area not to be harmonious and less connected to one another.

Meanwhile, Buckner said, the study shows the ability of cognitive decline in elderly people related to the possible problems of communication among brain.

“We talked about a growing impact on the last few decades of our lives,” he said.

Not every person subject to the same level. This may help to explain why some people who fell ill with Alzheimer’s Disease surrendered quickly and the other more experienced slow decline.

“Some of the brain may be more ready to attack the Alzheimer’s Disease,” said Buckner.
Normal aging light compared with those associated with diseases that cause progressive deterioration and the ability to seize the person to remember, give reasons, and communicate.

“Although it may mean that our brain at the age of 80 years does not like when we are aged 20 years, does not mean we do not try too good compared with the disease (it),” Buckner demolished.