Navigation Links
Newborn neurons like to hang with the 'in' crowd

Like any new kid on the block that tries to fit in, newborn brain cells need to find their place within the existing network of neurons. The newcomers jump right into the fray and preferentially reach out to mature brain cells that are already well connected within the established circuitry, report scientists at the Salk Institute for Biological Studies in the online edition of Nature Neuroscience.

At first, they gingerly sniff out pre-existing connections between brain cells but as the new neurons mature over time they get emboldened and muscle out the old guys. "Adding new neurons could be a very problematic process if newborn cells would make connections all over the place," explains Fred H. Gage, Ph.D., a professor in the Gene Expression Laboratory and the Vi and John Adler Chair for Research on Age-Related Neurodegenerative Diseases. "But if they are only replacing already existing connections there is less chance of error," he adds.

Neurons make contact via specialized structures called synapses. As a signal traveling along a nerve branch arrives at the pre-synaptic area, it releases a chemical signal. The signaling molecules travel across the synapse and induce a signal on the neighboring, receiving nerve fiber or dendrite. A typical neuron sports about 7,000 synapses through which it stays in touch with roughly 1,000 other cells. But just how young neurons make their presence known and hook up with already well-connected elders has been unclear.

"If you have hopes that one day neuronal stem cells can replace damaged neurons in neurodegenerative diseases such as Alzheimer's or Parkinson's disease you have to ensure that these cells make proper connections, form functional synapses and integrate into the rest of the brain," says postdoctoral fellow Nicolas Toni, Ph.D., who headed the current study.

To figure out how the newcomers do it, the Salk researchers injected a virus carrying the gene for green fluorescent protein
'"/>

Source:Salk Institute


Page: 1 2 3

Related biology news :

1. Opiates Better Than Sedatives For Treating Newborns In Withdrawal
2. Newborn screening can cause unnecessary parental stress
3. Newborn brains grow vision and movement regions first
4. First real-time view of developing neurons reveals surprises, say Stanford researchers
5. One gene links newborn neurons with those that die in diseases such as Alzheimers
6. Researchers make surprise discovery that some neurons can transmit three signals at once
7. Speak up: Louder neurons form more connections
8. Eating, body weight regulated by specific neurons
9. New neurons take baby steps in the adult brain
10. Algal protein in worm neurons allows remote control of behavior by light
11. Picking apart how neurons learn
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Newborn neurons like hang with the crowd

(Date:3/20/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) ... Global Strategic Business Report" report to their offering. ... in US$ Thousands. The report provides separate comprehensive analytics for ... , Europe , Asia-Pacific ... Latin America . Annual estimates and ...
(Date:3/18/2015)... 2015 As mobile payments become more ... wallets and apps continue to be introduced into the market ... mobile payment industry in focus today are:  NXT-ID, Inc. (NASDAQ: ... BABA ), Apple Inc. (NASDAQ: AAPL ), ... (NASDAQ: FB ) NXT-ID, Inc. (NASDAQ: ...
(Date:3/17/2015)... Emotient, the leader in facial expression ... availability of Emotient Analytics , the world,s ... facial expressions. The system analyzes videos of people ... services. It delivers audience response metrics - such ... derived from facial evidence of emotional states. Consumer ...
Breaking Biology News(10 mins):Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 2Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 3Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 4Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 5Revolutionary Smart Wallet & Mobile Payment Choices Change the Game for Consumers - Company Begins Shipping Newest Digital Wallet to Customers 6New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... California are declining and, in some cases, moving to higher ... loss of habitat, according to a study authored by biologist ... the College of Science. "Caterpillars are important herbivores as ... Forister said. "They play a significant role in an ecosystem. ...
... and the introduction of new crops relies on a ... change. Basing their argument on evolutionary, ecological, genetic and ... School of Agriculture at the Hebrew University of Jerusalem, ... the likely cause of plant domestication in the Near ...
... Irvine, Calif., Jan. 12, 2010 People with impaired mobility ... limb function long after the injury, if a supplemental protein ... rats. Two new studies by UC Irvine biologists have ... function in rats after a stroke. Administered directly to the ...
Cached Biology News:Climate change and habitat destruction affect butterfly populations 2Stable climate and plant domestication linked 2New stroke therapy successful in rats 2
(Date:3/27/2015)... , 27. März 2015  Peter Walter ... Biomedical Science für seine bahnbrechende Arbeit ausgewählt, ... Zellkompartimenten transportiert werden, sowie für die Entschlüsselung ... Reaktion auf Stress nutzen, der mit der ... ist Professor für Biochemie an der University ...
(Date:3/27/2015)... -- WuXi PharmaTech (Cayman) Inc. (NYSE: WX ... platform company serving the global pharmaceutical, biotechnology, and ... New Drug (IND) application for WuXi MedImmune,s novel ... accepted for review by the China Food and ... 2012, MedImmune, the global biologics research and development ...
(Date:3/26/2015)... TORONTO , March 26, 2015 /PRNewswire/ - SQI ... SQIDF) announced that after dealing with certain matters, including ... of shareholders held on March 26, 2015 (the "Meeting") ... until April 8, 2015 at 11:00 a.m. ( ... Meeting has been changed from that previous disclosed. The ...
(Date:3/26/2015)... 26, 2015 PAREXEL International Corporation ... clinical research organization , announced today that ... to acquire all of the business assets of ... provider of specialized pharmacovigilance services, based in ... detection, assessment, monitoring, and prevention of adverse ...
Breaking Biology Technology:Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 2Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 3Deutschstämmiger Zellbiologe Peter Walter gewinnt den Vilcek Prize in Biomedical Science 2015 4Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 2Investigational New Drug Application for WuXi MedImmune's Monoclonal Antibody Accepted for Review by CFDA 3SQI Diagnostics Inc. Announces Adjournment of Meeting 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 2PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 3PAREXEL Announces Execution of Definitive Agreement to Acquire Quantum Solutions India, Strengthening Leadership In Pharmacovigilance Services 4
... TAIAN CITY, China, June 8 /PRNewswire-Asia-FirstCall/ ... ("China Biologic" or the "Company"),one of the leading ... ("PRC"), today announced that the Company has entered ... led by Essence,International Investment Limited, pursuant to which ...
... , Research Published by Scripps Associate Professor Xiang-Lei Yang ... , , SAN DIEGO, June 8 The ... Research Institute (TSRI) News & Views highlights ... Xiang-Lei Yang, a scientific co-founder of aTyr Pharma. ...
... from sediments deep under the Pacific Ocean, could provide ... in the current issue of the journal, Microbiology ... Agricultural University in Wuhan, PR China describe how a ... to be highly effective in removing manganese from solutions, ...
Cached Biology Technology:China Biologic Products Enters Into Private Placement Agreements to Raise $9.6 Million 2China Biologic Products Enters Into Private Placement Agreements to Raise $9.6 Million 3China Biologic Products Enters Into Private Placement Agreements to Raise $9.6 Million 4Scripps Research Institute Highlights Groundbreaking Work of aTyr Pharma Scientific Co-Founder 2
Human DC-SIGNR/CD209L MAb (Clone 120604)...
Human DPPII/QPP/DPP7 Biotinylated Affinity Purified PAb ENTREZ GeneID: 29952...
Human SorCS1 Affinity Purified Polyclonal Ab Protein Family: Neurotrophins...
Human Apolipoprotein B100 Affinity Purified Polyclonal Ab ENTREZ GeneID: 338...
Biology Products: