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Cognitive impairment in families with exceptional longevity studied

Date:
May 6, 2013
Source:
American Medical Association (AMA)
Summary:
Researchers examines the relationship between families with exceptional longevity and cognitive impairment consistent with Alzheimer disease.

A study by Stephanie Cosentino, Ph.D., of Columbia University, New York, and colleagues examines the relationship between families with exceptional longevity and cognitive impairment consistent with Alzheimer disease. (Online First)

The cross-sectional study included a total of 1,870 individuals (1,510 family members and 360 spouse controls) recruited through the Long Life Family Study. The main outcome measure was the prevalence of cognitive impairment based on a diagnostic algorithm validated using the National Alzheimer's Coordinating Center data set.

According to study results, the cognitive algorithm classified 546 individuals (38.5 percent) as having cognitive impairment consistent with Alzheimer disease. Long Life Family Study probands had a slightly but not statistically significant reduced risk of cognitive impairment compared with spouse controls (121 of 232 for probands versus 45 of 103 for spouse controls), whereas Long Life Family Study sons and daughters had a reduced risk of cognitive impairment (11 of 213 for sons and daughters versus 28 of 216 for spouse controls). Restriction to nieces and nephews in the offspring generation attenuated this association (37 of 328 for nieces and nephews versus 28 of 216 for spouse controls).

"Overall, our results appear to be consistent with a delayed onset of disease in long-lived families, such that individuals who are part of exceptionally long-lived families are protected but not later in life," the study concludes.


Story Source:

The above story is based on materials provided by American Medical Association (AMA). Note: Materials may be edited for content and length.


Journal Reference:

  1. Stephanie Cosentino, Nicole Schupf, Kaare Christensen, Stacy L. Andersen, Anne Newman, Richard Mayeux. Reduced Prevalence of Cognitive Impairment in Families With Exceptional Longevity. JAMA Neurol, 2013 DOI: 10.1001/.jamaneurol.2013.1959

Cite This Page:

American Medical Association (AMA). "Cognitive impairment in families with exceptional longevity studied." ScienceDaily. ScienceDaily, 6 May 2013. <www.sciencedaily.com/releases/2013/05/130506181307.htm>.
American Medical Association (AMA). (2013, May 6). Cognitive impairment in families with exceptional longevity studied. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2013/05/130506181307.htm
American Medical Association (AMA). "Cognitive impairment in families with exceptional longevity studied." ScienceDaily. www.sciencedaily.com/releases/2013/05/130506181307.htm (accessed July 23, 2014).

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