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:11/3/2014)... Research and Markets has announced the addition of a ... to their offering. This report describes ... started to play an important role in the practice of ... bone marrow transplants. Role of cells in drug discovery is ... of medical practice. Stem cells are discussed in ...
(Date:11/3/2014)... birth weight and preterm birth are linked to increased ... published in the American College of Rheumatology (ACR) journal, ... birth weight and pre-term babies were not at greater ... , According to the ACR, 27 million Americans ... OA. Symptoms of OA range from mild to severe ...
(Date:11/2/2014)... was fascinating to put a flashlight up to our ... Washington University in St. Louis engineers are using a ... to improve imaging of cancerous tissues and to develop ... K. Beare Distinguished Professor of Biomedical Engineering at the ... novel time-reversal technology that allows researchers to better focus ...
Breaking Biology News(10 mins):Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 2Global Cell Therapy - Technologies, Markets and Companies: 2014 Report 3Preterm, low birth-weight babies may need new hips in adulthood 2Improving imaging of cancerous tissues by reversing time 2
(Date:11/26/2014)... Bio-Techne Corporation (NASDAQ: TECH ) announced today ... serve in a newly created position of Senior Vice ... be responsible for managing the operations of Bio-Techne,s Protein ... in July 2014 and the recently acquired CyVek business. ... ProteinSimple develops and commercializes proprietary systems and consumables that ...
(Date:11/26/2014)... 25, 2014  Roka Bioscience, Inc. (NASDAQ: ROKA ... solutions for the detection of foodborne pathogens, today announced that ... Jaffray  26 th Annual Healthcare Conference on December 2, ... The New York Palace in New York, NY ... concerning the Company, its operations, strategies and prospects may be ...
(Date:11/24/2014)... , UAE, November 24, 2014 ... Hamdan Bin Rashid Al Maktoum Awards for Medical Sciences", ... Dubai, United Arab Emirates , on 15 ... ) , The Carter Center which won ... is actively involved in numerous programs that aim to ...
(Date:11/24/2014)... Belgium , Nov. 24, 2014 ... focused on developing diagnostic tests for cancer and other conditions, ... will be presented at the Science for Business BioWin Day ... Belgium . The data come from VolitionRx,s lung cancer ... Pneumology department of the Centre Hospitalier Universitaire (CHU) de Liege ...
Breaking Biology Technology:Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 2Bio?Techne Announces Appointment Of Robert Gavin As Leader Of New Protein Platforms Division 3Roka Bioscience to Present at the Piper Jaffray Healthcare Conference 2Five US Winners Among Recipients of Hamdan Medical Awards 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6
Cached News: