HOME >> BIOLOGY >> NEWS
Genes influence memory in families with Alzheimer's disease

ST. PAUL, Minn. Genes play a strong role in how well our memory works, according to a study of families with more than one person with Alzheimer's disease. The study is published in the February 10 issue of Neurology, the scientific journal of the American Academy of Neurology. Located in DNA and RNA, a gene is a unit of inheritance that determines one or more traits.

"These results are exciting because if we can identify the genes that are responsible for memory, they may lead us to identifying more of the genes that contribute to Alzheimer's disease," said study authors Joseph H. Lee, DrPH, and Richard Mayeux, MD, MSc, of the Taub Institute at Columbia University in New York, N.Y.

The researchers studied 1,036 people from 266 families, mainly in the Dominican Republic and Puerto Rico. Most of the families had more than one person living with Alzheimer's disease in the extended family, including siblings, aunts, uncles, cousins and others.

All of the study participants were tested for memory, attention, abstract reasoning, language and visual-spatial ability. The results were then analyzed to determine how much of the individual's ability in those areas was due to genetics. Memory performance was found to be strongly influenced by genetics.

"We found that about half of the variation in memory performance among individuals is due to genetics," Mayeux said. "The other half is due to environmental factors such as education. Considering that even with dominant traits, such as a genetic mutation that leads to early onset Alzheimer's, the genetic influence actually amounts to about 80 percent, this shows that memory performance has a strong genetic influence."

The influence of genetics was not as strong in the areas of attention, abstract reasoning, language and visual-spatial ability. The result with memory performance was found even after excluding the memory scores for the people with Alzheimer's.

The study participants
'"/>

Contact: Kathy Stone
kstone@aan.com
651-695-2763
American Academy of Neurology
9-Feb-2004


Page: 1 2

Related biology news :

1. Genes expose secrets of sex on the side
2. Genes can influence both alcohol consumption and dependence
3. Genes may be central to cocaine addiction
4. Genes appear to play a role in development of chronic obstructive pulmonary disease
5. Genes make the marsh
6. Genes predict response of adult leukemia patients to chemotherapy
7. Genes control severity of heart failure, study finds
8. Genes that regulate hearing link humans and fruit flies in new way
9. Genes discovered that regulate blood stem cell development
10. Genes that paint fly derrieres hint at convergence
11. Genes, Brain and Behavior Symposium April 16

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Genes influence memory families with Alzheimer disease

(Date:11/11/2014)... -- Forensicon, Inc., a Chicago -based digital ... promotion of Yaniv Schiff from Senior Computer ... new role as Director, he will lead company efforts ... and provide leadership within the company,s digital forensics practice ... Schiff joined Forensicon in 2006 and ...
(Date:11/7/2014)... associate professor, biomedical engineering, in the Grove School ... York, have identified a molecule that could lead ... aggressive forms of breast cancer. , Triple negative ... owing to aggressive proliferation and metastasis and a ... team, discovered the overexpression of intercellular adhesion molecule-1 ...
(Date:11/7/2014)... SPRINGS, Florida , November 6, 2014 ... secure authentication for better mobile security revolutionizing online transactions.  Companies ... ), Alibaba Holdings Ltd. (NYSE: BABA ), Google ... MSFT ), eBay Inc. (NASDAQ: EBAY ) ... NXTD and NXTDW), a biometric authentication company ...
Breaking Biology News(10 mins):Yaniv Schiff Promoted to Director of Digital Forensics at Forensicon, Inc. 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6
(Date:11/15/2014)... FL (PRWEB) November 14, 2014 ... scientifically validated physical activity and sleep measurement platform ... improved subject experience along with multiple new channels ... and secondary accelerometer. Equipped with Bluetooth Smart technology, ... capture and mobile data uploads to ActiGraph’s cloud-based ...
(Date:11/15/2014)... The "Operating Room Management Market ... Application (Perioperative, Preoperative, operating room Scheduling), by Component ... Global Forecast to 2019.” defines and segments the ... forecast of value by product, such as data ... the value and volumes of operating room management ...
(Date:11/15/2014)... LONDON , Nov. 14, 2014 Algenol Biofuels ... 6th at the Oceanographic Museum of Monaco ... CleanEquity Monaco is an annual invitation-only event hosted by ... investment bank. Other partners and sponsors include ... Foundation, Covington & Burling, Cranfield University, PR Newswire, the Monte-Carlo ...
(Date:11/12/2014)... The “Pen Needles Market by by Needle Length ... Growth Hormones, Glucagon-like peptide) & by Type (Standard and ... and studies the major market drivers, threats, opportunities, and ... 51 figures spread through 185 pages and in-depth TOC ... by Needle Length (4mm, 5mm, 6mm, 8mm, 10mm, and ...
Breaking Biology Technology:ActiGraph Launches GT9X Link Activity Monitor 2Operating Room Management Market Worth $4,551.1 Million by 2019 - New Report by MarketsandMarkets 2Operating Room Management Market Worth $4,551.1 Million by 2019 - New Report by MarketsandMarkets 3Operating Room Management Market Worth $4,551.1 Million by 2019 - New Report by MarketsandMarkets 4Algenol Biofuels Selected to Present at CleanEquity Monaco 2015 2Pen Needles Market worth $2,105 Million by 2019 - New Report by MarketsandMarkets 2Pen Needles Market worth $2,105 Million by 2019 - New Report by MarketsandMarkets 3Pen Needles Market worth $2,105 Million by 2019 - New Report by MarketsandMarkets 4
Cached News: