Saturday, August 10, 2013

Retired NFL players may not suffer unique cognitive disorder

Retired NFL players may not tolerate unique cognitive disorder

The media get widely reported that retired NFL players are at jeopardize for a neurodegenerative disorder called of long duration traumatic encephalopathy (CTE), which causes symptoms in the same state as aggression, depression, suicidality and progressive dementia.

But a study of secluded NFL players, led by Christopher Randolph, PhD, of Loyola University Medical Center, has place no evidence to support this hypothesis.

Randolph and colleagues report their findings in the Journal of the International Neuropsychological Society.

While there are no clearly defined diagnostic criteria in quest of CTE, the condition has been suggested to have existence characterized by irritability, impulsivity, aggression, dulness, short-term memory loss and heightened suicidal rational or behavior.

Randolph and colleagues conducted a brace-part study. The first part involved a telephone scrutinize examining the prevalence of possible cognitive impairment in 531 withdrawn NFL players over age 50. In the help part, researchers recruited a sample of players who appeared to be in possession of significant cognitive impairments, and examined them quickly with neuropsychological testing.

The players who participated in the telephone examine had an average age of 64 and had played in the NFL beneficial to an average of 7.5 years. Thirty-five percent of this pattern had possible cognitive impairment based without interrupti a screening interview known as the AD8.

A subsample of 41 retired NFL players were recruited for testimony of probable mild cognitive impairment. They underwent in-human frame neuropsychological assessments at the Center in the place of the Study of Retired Athletes at the University of North Carolina, Chapel Hill. They in that case were compared with healthy controls and by non-athlete patients with a clinical diagnosis of assuasive cognitive impairment (MCI), commonly presumed to contemplate the earliest stage of Alzheimer's disease.

While the retired NFL players were clearly impaired not absolute to healthy controls, the patterns of their impairments were to all intents and purposes identical to those exhibited by the non-athletes with MCI.

"The retired NFL players basically apply the mind like regular patients who have gentle cognitive impairment and have never played football," Randolph afore.

Randolph continued: "The rate of possible cognitive impairment in the NFL retirees was higher than we expected. But it is serious to note that we did not esteem any controls in that part of the study, in such a manner we still do not know whether or not NFL players positively have a higher risk of later-life cognitive impairments than men in the whole population. When we look closely at those players who finish have mild cognitive impairment, they are clinically that cannot be distinguished from non-athletes with a clinical diagnosis of MCI."

Randolph believes that if there is indeed an increased peril of late-life cognitive impairment in NFL retirees, it is to all appearance due to diminished cerebral reserve. This theory is based on the possibility that repetitive master trauma over a long playing rush results in a loss of brain cells. This enclosed space loss is not severe enough to about symptoms when players are young or between the extremes-aged. But it could lead to the earlier look of age-related neurodegenerative diseases such as Alzheimer's, due to unqualified reserve to cope with the disorder-related cell loss.

"We still practise not know if NFL players bring forth an increased risk of late-life neurodegenerative disorders," Randolph reported. "If there is a risk, it apparently is not a great risk. And there is essentially no evidence to relieve the existence of any unique clinical put out of place such as CTE."

In their bills of exchange, Randolph and colleagues wrote that media coverage of this sending out "continues to far outweigh any meaningful results from air-bladder experimental science, and a definitive epidemiological study gentle has yet to be done."

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