Navigation Links
Impaired Odour Identification Predicts Cognitive Decline for the Elderly

Older adults having difficulty in identifying common odours may be at a higher risk of cognitive impairment-a decline in thinking, learning, and memory abilities-which is a precursor to Alzheimer's disease, suggests a study.

Dr. Robert S. Wilson and his colleagues at Rush University Medical Center, Chicago, studied 589 older adults, who did not have cognitive impairment in 1997. The participants, having an average age of 79.9 years, were exposed to 12 familiar odours.

The participants were asked to match each odour to one of four possible alternatives, and were scored from one to 12 based on the number of correct responses.

The researchers say that 177 individuals developed mild cognitive impairment during the study, and the risk of developing mild cognitive impairment increased as odour identification decreased. According to them, participants who had scored below average on the odour identification test were 50 per cent more likely to develop the condition than those who scored above average.

Dr. Wilson says that the association between cognitive impairment and reduction in odour identification did not change even when it was considered that factors like stroke and smoking habits might have influenced the results.

The researcher also said that the impaired odour identification was also associated with lower cognitive scores at the beginning of the study, and with a more rapid decline in the memory of past experiences, memory of words and symbols, and perceptual speed.

"Among older persons without manifest cognitive impairment, difficulty in identifying odours predicts subsequent development of mild cognitive impairment," the authors conclude.

"The findings suggest that olfactory dysfunction can be an early manifestation of Alzheimer's disease ... and that olfactory assessment may be useful for early disease identification," they write.


'"/>




Page: 1

Related medicine news :

1. Early Intervention Required For The Hearing Impaired
2. Debra Winger Wants Indians Abroad To Help Visually Impaired
3. Hi-tech Walking Stick Developed For Visually Impaired
4. A Visually Impaired Patient Pioneers The Seeing Machine
5. No Link between Scuba Diving and Impaired Lung Function
6. Allergic Rhinitis Associated with Impaired Sleep Quality
7. Newly Discovered Immune Defense May Be Impaired In CF Airways
8. Sleep Deprivation may Lead to Impaired Memory, Says Study
9. Uric Acid Levels Tied to Impaired Thinking in the Elderly
10. Hearing Impaired Student Captures International Performance Award
11. A Boon to Hearing Impaired-Gene Transfer
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:5/2/2016)... ... 02, 2016 , ... As directed by its board of directors during its ... support to allow certified nurse practitioners (CNP) to practice to the full scope of ... supervision for three years and 3,600 hours. , In addition, HAP supports CNPs who ...
(Date:5/2/2016)... ... 02, 2016 , ... The Civilian Corps of the U.S. Army Medical Command ... care for its uniformed service members, the retired service members, their families and other ... through May 12th National Nurses Week. It acknowledges the hard work and dedication of ...
(Date:5/2/2016)... ... 2016 , ... “Engineering Bubbles,” an oil painting submitted by Canadian radiology resident ... recently at the Annual Meeting in Los Angeles. The first annual art forum was ... Annual Meeting attendees. , “Through art I hope to educate people about radiology ...
(Date:5/2/2016)... ... , ... WestHarbor Growth Partners, a growth, expansion and turnaround ... Healthy Vending’s newly revamped brand campaign. Grow Healthy Vending is headquartered in ... North America with locations across the United States as well as internationally. ...
(Date:5/2/2016)... ... May 02, 2016 , ... East Los Angeles dentist ... patients can visit Dr. Assili to receive any dental extraction treatment for $40 off ... expires June 30, 2016. With the lower price, patients can more easily afford extractions ...
Breaking Medicine News(10 mins):
(Date:5/2/2016)... SAN FRANCISCO , May 2, 2016 /PRNewswire/ ...  is expected to reach USD 11.1 billion by ... Grand View Research, Inc. Major drivers of the ... in therapeutic areas and government recommendations for periodic ...      (Logo: http://photos.prnewswire.com/prnh/20150105/723757 ) ...
(Date:4/29/2016)... , April 29, 2016 ... glyco-biology expertise, today announces the appointment of Dr. ... Dr. Zurlo is an oncologist with many years clinical ... and biotechnology industries. His last role was at Mologen ... of the Executive Board. Previously Dr. Zurlo held various ...
(Date:4/28/2016)...  Marking its one year anniversary since launching ... risk test, Color Genomics announced a ... impact the most common hereditary cancers affecting both ... analyzes hereditary cancer risks for breast, colorectal, melanoma, ... Color Test is physician ordered and includes genetic ...
Breaking Medicine Technology: