Navigation Links
Cognitive problems common among non-demented elderly
Date:2/6/2012

Both subjective and objective cognitive impairment are highly common among non-demented elderly Swedes, with an overall prevalence of 39 percent and 25 percent respectively, according to a nationwide twin study by researchers at the Aging Research Center of Karolinska Institutet, Sweden. The study confirms higher education as a major protective factor and stresses the importance of environmental aspects over genes in mild cognitive disorders in old age.

In the current study, which is published in the Journal of Alzheimer's Disease, the researchers investigated the distribution and heritability of subjective and objective cognitive impairment in the population by using data from 11,926 twins aged 65 and above in the Swedish Twin Registry. Objective cognitive impairment involves a reduced performance on tests measuring different cognitive abilities, such as memory and attention, while subjective cognitive impairment involves the same type of problems but experienced only at the subjective level. The researchers then found, that together subjective and objective cognitive impairment affect the majority of non-demented Swedish elderly (joint prevalence 64 percent), suggesting that mild cognitive disorders may represent a major public health concern even in the absence of dementia.

The study also highlights that subjective and objective cognitive impairment has distinct socio-demographic profiles. Specifically, when compared with people with objective cognitive impairment, elderly with subjective complaints only were more educated, more likely to be married, and to have higher socio-economic status pointing to a possible protective effect of this favorable life conditions. Co-twin control analysis showed that the detrimental effect of lower educational level on cognitive functioning is largely independent by genetic background and early life environment.

"This underlies the relevance of adult life educational achievements for preserved cognitive functioning in older life", says Dr Barbara Caracciolo, who led the study at the Aging Research Center in Stockholm.

Regarding the heritability of subjective and objective cognitive impairment, the researchers observed concordance rates of 63 percent and 52 percent in monozygotic twins, 63 percent and 50 percent in dizygotic same-sex twins, and 42 percent and 29 percent in dizygotic unlike-sex twins. The lack of substantial differences in concordance rates between genetically identical (monozygotic) and or non-identical (dizygotic) twins suggests that environmental influences rather than genetic background play the major role in the occurrence of mild cognitive disorders in non-demented elderly.


'/>"/>

Contact: Press Office
pressinfo@ki.se
46-852-486-077
Karolinska Institutet
Source:Eurekalert

Related medicine news :

1. Drug May Ease Cognitive Effects of Huntingtons
2. Cognitive Skills May Shrink With Tamoxifen
3. Overweight middle-aged adults at greater risk for cognitive decline in later life
4. Chronic Back Pain Soothed by Cognitive Behavioral Therapy
5. Predisposing factors for conversion of mild cognitive impairment to AD identified
6. New Study Finds Cholesterol-Related Gene Associated with Mild Cognitive Impairment, a Precursor of Alzheimer's Disease
7. HAPPYneuron Launches 'Vital' Brain Gym: Cognitive Exercises within SCAN Health Plan's Mobile Resource Center for Seniors
8. Mouli Cohen On Technology For Seniors' Cognitive Care
9. Childrens cognitive ability can be affected by mothers exposure to urban air pollutants
10. Self-Psychology Allows You to Carry A Cognitive Behavioral Therapist On Your iPhone
11. NIH awards $2.7-million grant to Kent State to study cognitive impairment in heart failure patients
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:6/25/2016)... ... June 25, 2016 , ... The temporary closing of Bruton Memorial Library on June ... , brings up a new, often overlooked aspect of head lice: the parasite’s ability to ... is not a common occurrence, but a necessary one in the event that lice have ...
(Date:6/25/2016)... ... 2016 , ... On Friday, June 10, Van Mitchell, Secretary of the Maryland ... iHire in recognition of their exemplary accomplishments in worksite health promotion. , The Wellness ... & Wellness Symposium at the BWI Marriott in Linthicum Heights. iHire was one of ...
(Date:6/24/2016)... PASADENA, CA (PRWEB) , ... June 24, 2016 , ... Marcy was in a crisis. ... he would lash out at his family verbally and physically. , “When something upset him, ... table, he would use it. He would throw rocks at my other children and say ...
(Date:6/24/2016)... , ... June 24, 2016 , ... Topical BioMedics, Inc, makers of Topricin and MyPainAway ... call for a minimum wage raise to $12 an hour by 2020 and then adjusting ... restore the lost value of the minimum wage, assure the wage floor does not erode ...
(Date:6/24/2016)... ... June 24, 2016 , ... ... the Frederick area economy by obtaining investment capital for emerging technology companies. ... years that have already resulted in more than a million dollars of capital ...
Breaking Medicine News(10 mins):
(Date:6/24/2016)... Calif. , June 24, 2016  Global ... a biopharmaceutical company developing novel therapeutics for the ... needs, today announced the closing of its previously ... common stock, at the public offering price of ... the offering were offered by GBT. GBT estimates ...
(Date:6/24/2016)... Dehaier Medical Systems Ltd. (NASDAQ: ... and sells medical devices and wearable sleep respiratory products ... cooperation agreement with Hongyuan Supply Chain Management Co., Ltd. ... 20, 2016, to develop Dehaier,s new Internet medical technology ... will leverage Hongyuan Supply Chain,s sales platform to reach ...
(Date:6/24/2016)... Belgium , June 24, 2016 /PRNewswire/ ... announced the appointment of Dr. Edward Futcher ... a Non-Executive Director, effective June 23, 2016.Dr. Futcher ... and Nominations and Governance Committees.  As a non-executive ... provide independent expertise and strategic counsel to VolitionRx ...
Breaking Medicine Technology: