Navigation Links
Scientists discover major clue in long-term memory making
Date:3/20/2011

DURHAM, N.C. You may remember the color of your loved one's eyes for years. But how?

Scientists believe that long-term potentiation (LTP) the long-lasting increase of signals across a connection between brain cells -- underlies our ability to remember over time and to learn, but how that happens is a central question in neuroscience.

Researchers at Duke University Medical Center have found a cascade of signaling molecules that allows a usually very brief signal to last for tens of minutes, providing the brain framework for stronger connections (synapses) that can summon a memory for a period of months or even years.

Their findings about how the synapses change the strength of connections could have a bearing on Alzheimer's disease, autism and mental retardation, said Ryohei Yasuda, Ph.D., assistant professor of neurobiology and senior author.

"We found that a biochemical process that lasts a long time is what causes memory storage," said Yasuda, who is a Howard Hughes Medical Institute Early Career Scientist.

This work was published in the March 20 issue of Nature.

The researchers were investigating the signaling molecules that regulate the actin cytoskeleton, which serves as the structural framework of synapses.

"The signaling molecules could help to rearrange the framework, and give more volume and strength to the synapses," Yasuda said. "We reasoned that a long-lasting memory could possibly come from changes in the building block assemblies."

The Duke researchers knew that long-term potentiation, a long-lasting set of electrical impulses in nerve cells, is triggered by a transient increase of calcium (Ca2+) ions in a synapse. They devised experiments to learn exactly how the short Ca2+ signal, which lasts only for ~0.1s, is translated into long-lasting (more than an hour) change in synaptic transmission.

The team used a 2-photon microscopy technique to visualize
'/>"/>

Contact: Mary Jane Gore
mary.gore@duke.edu
919-660-1309
Duke University Medical Center
Source:Eurekalert  

Page: 1 2

Related biology news :

1. Jefferson scientists deliver toxic genes to effectively kill pancreatic cancer cells
2. Scientists identify novel inhibitor of human microRNA
3. Argonne scientists peer into heart of compound that may detect chemical, biological weapons
4. MU scientists go green with gold, distribute environmentally friendly nanoparticles
5. Scientists identify gene that may contribute to improved rice yield
6. Scientists discover why a mothers high-fat diet contributes to obesity in her children
7. MU scientists see how HIV matures into an infection
8. Earth scientists keep an eye on Texas
9. Thinking it through: Scientists call for policy to guide biofuels industry toward sustainability
10. Scientists identify a molecule that coordinates the movement of cells
11. Scientists Find new migratory patterns for Mediterranean and Western Atlantic bluefin tuna
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover major clue in long-term memory making
(Date:12/19/2014)... , Dec. 18, 2014 Research and Markets ... the "Micro Market Monitor: North America Perimeter Security ... http://photos.prnewswire.com/prnh/20130307/600769 The North ... a CAGR of 3.6% from 2014 to 2019. Although ... market, Canada is expected to ...
(Date:12/17/2014)... Dec. 15, 2014  HITLAB SM announced ... (GCP) audit to confirm its adherence to current ... accomplishment enables HITLAB to conduct regulated smart device ... principles for patient safety and research quality. ... access, quality, and delivery with innovative technology," said ...
(Date:12/11/2014)... --Research and Markets , ... ) has announced the addition of the ... to their offering. One major ... technology. With continuous advances in technology, it is ... standard that meets the needs and expectations of ...
Breaking Biology News(10 mins):Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 2Micro Market Monitor: North America Perimeter Security Systems Market (Intrusion Detection Sensor, Video Surveillance, Communication/Alarm and Notification, Access Control System) 3HITLAB Completes GCP Audit for FDA Smart Device & App Compliance 2Biometrics Market in the APAC Region 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2
... and toxinologist Zoltan Takacs, PhD, a research associate ... has been named to the 2010 class of ... interest in drug development with exotic travel, venomous ... "visionary, young trailblazers" from around the world making ...
... MBL, WOODS HOLE, MAMitchell Sogin of the Marine Biological Laboratory ... from Ion Torrent of Guilford, Conn., and San Francisco. ... Ion PGM sequencer, a DNA sequencing system that directly translates ... 1) on a semiconductor chip. The result is a sequencing ...
... 2010 Grazinglands represent one of the largest land resources ... sources of greenhouse gases is essentially unknown. Previous research has ... atmospheric carbon dioxide as soil organic carbon. However, there is ... flux of two potent GHGs, nitrous oxide and methane. ...
Cached Biology News:National Geographic names University of Chicago researcher an 'Emerging Explorer for 2010' 2National Geographic names University of Chicago researcher an 'Emerging Explorer for 2010' 3National Geographic names University of Chicago researcher an 'Emerging Explorer for 2010' 4MBL scientist awarded next-generation DNA sequencer to monitor water quality 2How grazing lands influence greenhouse gas 2
(Date:12/24/2014)... , Dec. 24, 2014  United Therapeutics Corporation ... Medtronic, Inc. (NYSE: MDT ) has ... Food and Drug Administration (FDA) for the use ... infusion system (including a newly developed catheter) for ... Injection delivered intravenously to patients with pulmonary arterial ...
(Date:12/24/2014)... GMO corn cases filed across the United ... the process of being consolidated in a Kansas federal ... Re: Syngenta AG MIR 162 Corn Litigation, MDL No. ... of Kansas. , Management of the Syngenta GMO corn ... District Judge John W. Lungstrum.* , As a Missouri ...
(Date:12/24/2014)... December 23, 2014 The ... such as its definition, classification, application and ... specification, manufacturing process, and product cost structure. ... applications. The analysis also covers upstream raw ... industry development trend and proposals. In the ...
(Date:12/24/2014)... AUSTIN, Texas , Dec. 23, 2014 /PRNewswire/ ... solutions company focused on gynecologic disease, announced today ... W. Schuler , Birchview Fund LLC and several ... million of unregistered shares of Vermillion,s common stock ... common stock in a private placement.  ...
Breaking Biology Technology:United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Carey Danis & Lowe Reports on Syngenta GMO Corn Transfer Order 2Worldwide Methyl Mercaptan Market 2015-2020 Forecasts on Development & Trends Now Available at ReportsnReports.com 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 2Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 3Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 4Vermillion Announces Equity Financing of up to $18.9 Million; Suspends ATM Program 5
... FRANCISCO, December 13 Synosia Therapeutics today,announced the ... new,chief business officer, effective immediately., Dr Blanc, ... in Basel,Switzerland, joins from Syngenta, where he created ... by training and an,experienced biotech entrepreneur, Dr. Blanc ...
... N.J., Dec. 12 Datascope Corp.,(Nasdaq: DSCP ... one of the nation,s,leading independent proxy advisory firms, ... James J. Loughlin and William,L. Asmundson -- at ... 20, 2007. To follow Glass Lewis, recommendation,Datascope shareholders ...
... -- Record revenues of $82.0 million, up 22% from the prior year,s fourth ... quarter ... over last year,s ... debt facility paid off, -- Launch of four new food and beverage products and one new pregnancy and ...
Cached Biology Technology:Synosia Therapeutics Announces Appointment of Chief Business Officer 2Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 2Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 3Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 4Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 5Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 6Glass Lewis Recommends Datascope Shareholders Vote for Re-Election of the Board's Directors 7Martek Announces Fourth Quarter and FY 2007 Financial Results 2Martek Announces Fourth Quarter and FY 2007 Financial Results 3Martek Announces Fourth Quarter and FY 2007 Financial Results 4Martek Announces Fourth Quarter and FY 2007 Financial Results 5Martek Announces Fourth Quarter and FY 2007 Financial Results 6Martek Announces Fourth Quarter and FY 2007 Financial Results 7Martek Announces Fourth Quarter and FY 2007 Financial Results 8Martek Announces Fourth Quarter and FY 2007 Financial Results 9Martek Announces Fourth Quarter and FY 2007 Financial Results 10Martek Announces Fourth Quarter and FY 2007 Financial Results 11Martek Announces Fourth Quarter and FY 2007 Financial Results 12Martek Announces Fourth Quarter and FY 2007 Financial Results 13Martek Announces Fourth Quarter and FY 2007 Financial Results 14Martek Announces Fourth Quarter and FY 2007 Financial Results 15
... cooling coil, Trans-Blot cell, provides ... high-intensity, and extended electrophoretic transfer ... Trans-Blot cell. Use of the ... to an external water recirculator, ...
... of next-generation features into a small-footprint design, ... flexible laboratory solutions. It puts every aspect ... dispensing, and integrations into a single, ... as it is efficient and economical. The ...
... Biomek FX P is the latest entry ... for greater positional accuracy and increased robustness, it ... application. It can be configured with either one ... capacity, the Biomek FX P sets the ...
These Costar 96-well, flat-bottom polystyrene EIA plates are used for EIAs, ELISAs, and other protein binding assays. Supplied as box of 100 (20 packages; 5 plates per package)....
Biology Products: