Navigation Links
Brain cell communication: Why it's so fast
Date:9/21/2010

Billions of brain cells are communicating at any given moment. Like an organic supercomputer they keep everything going, from breathing to solving riddles, and "programming errors" can lead to serious conditions such as schizophrenia, Parkinson's disease and attention-deficit hyperactivity disorder.

The brain uses biochemical signal molecules

Nowadays the biochemical language of the nerve cells is the subject of intensive research right down at the molecular level, and for the first time researchers, some from the University of Copenhagen, have described just how nerve cells are capable of transmitting signals practically simultaneously.

The cells of the nervous system communicate using small molecule neurotransmitters such as dopamine, serotonin and noradrenalin. Dopamine is associated with cognitive functions such as memory, serotonin with mood control, and noradrenaline with attention and arousal.

The brain cell communication network, the synapses, transmit messages via chemical neurotransmitters packaged in small containers (vesicles) waiting at the nerve ends of the synapses. An electrical signal causes the containers and membrane to fuse and the neurotransmitters flow from the nerve ending to be captured by other nerve cells. This occurs with immense rapidity in a faction of a millisecond.

The vesicle uses three copies of the "linking bridge"

Researchers from the Universities of Copenhagen, Gttingen and Amsterdam have been studying the complex organic protein complexes that link vesicles and membrane prior to fusion, in order to find an explanation for the rapidity of these transmissions. They have discovered that the vesicle contains no fewer than three copies of the linking bridge or "SNARE complex".

With only one SNARE complex the vesicle takes longer to fuse with the membrane and the neurotransmitter is therefore secreted more slowly.

- "The precursors for t
'/>"/>

Contact: Jakob Balslev Sorensen
jakobbs@sund.ku.dk
453-089-0096
University of Copenhagen
Source:Eurekalert

Page: 1 2

Related biology news :

1. Discovery of key pathway interaction may lead to therapies that aid brain growth and repair
2. New pathway identified in Parkinsons through brain imaging
3. OU study on genetics in fruit flies leads to new method for understanding brain function
4. Investigators discover a new hot spot for the genesis of signaling neurons in the adult brain
5. Brain cells determine obesity -- not lack of willpower: Study
6. Cockroach brains could be rich stores of new antibiotics
7. The brain speaks
8. Insect brains are rich stores of new antibiotics
9. Major moral decisions use general-purpose brain circuits to manage uncertainty
10. Research heralds potential for early diagnosis of degenerative brain disorders
11. New study sheds light on painkilling system in brain
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/10/2014)... COLORADO SPRINGS, Colo. , June 27, 2014 ... announces that the National Institute of Standards and ... appointed 10 of its academic research and forensic ... Board (FSSB).  The Board is an element of ... These AAFS members are among the first appointments ...
(Date:7/10/2014)... 2014 Smart technology emphasis grows in ... improved security: NXT-ID, Inc. (OTCBB: NXTD), eBay Inc. (NASDAQ: ... Apple Inc. (NASDAQ: AAPL ), Visa Inc. (NYSE: ... NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication company focused on ... second series of 30 second spots on CNBC for its ...
(Date:7/10/2014)... July 2, 2014 NXT-ID, Inc., (OTCQB: NXTD) a biometric authentication ... Mr. Gino Pereira was interviewed on July 1 ... Tampa Florida . Mr. Pereira discusses the company,s ... Harris and how the Wocket™ aims to replace a ... Cedric Harris tells Gino he has never ...
Breaking Biology News(10 mins):Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 2Ten Members of the American Academy of Forensic Sciences Appointed to Forensic Science Standards Board (FSSB) 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 2Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 3Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 4Advantages for Digital Wallets Eliminate Need to Carry Credit Cards - Large Scale CNBC Ad Campaign for Latest Smart Wallet to Commence July 7th 5Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 2Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 3Security and Your Money: Tampa Bay Radio Host Cedric Harris Talks to NXT-ID CEO Mr. Gino Pereira about the Wocket Smart Wallet 4
... associated with many common laboratory techniques, such as DNA ... individuals outside of traditional university or industrial settings, giving ... DIYbio.org and the Synthetic Biology Project ... the "Ask a Biosafety Expert" service in ...
... Fraunhofer researchers are exhibiting how renewable, biodegradable and ... design and the packaging industry at this year,s International ... (Hall 5.2a, Booth 103). They consist of a ... diatomaceous earth, a material that is procured from fossilized ...
... Biomedical researchers studying aging and cancer are intensely interested ... chromosomes. In a new study, scientists at UC Santa ... mechanical properties of telomeres that could help guide the ... long, repetitive DNA sequences at the ends of chromosomes ...
Cached Biology News:Questions about biosafety? Ask a biosafety expert 2Fraunhofer shows bio-tiles and heat-resistant biopolymers 2Novel technique reveals dynamics of telomere DNA structure 2Novel technique reveals dynamics of telomere DNA structure 3
(Date:7/10/2014)... has been extremely challenging because there are many genetic ... cause disease. Now investigators reporting in the July 3rd ... Cell describe a strategy that may help reveal ... factors or environmental exposures to affect the development of ... that may predispose individuals to schizophrenia. , The ...
(Date:7/10/2014)... shelled out for crude 3-D glasses, polarized glasses, ... These basic devices, used to trick the brain ... be rendered obsolete with the introduction of new ... , TAU doctoral students Yuval Yifat, Michal Eitan, ... based on nanoantennas that could be used for ...
(Date:1/15/2014)... laureate Herbert Kroemer famously observed, referring to the ... where layers of different materials meet. In today,s ... of metal oxides are becoming increasingly prominent, with ... superconductors, ferroelectrics and multiferroics. Realizing the vast potential ...
(Date:1/15/2014)... 15, 2014 Look inside the new ... for the lab, from fluid handling to instruments to ... ship when you order. , Preferred Solutions features ... from the L/S® model for precise flow control and ...
Breaking Biology Technology:New strategy could uncover genes at the root of psychiatric illnesses 2Projecting a 3-dimensional future 2Projecting a 3-dimensional future 3A deeper look at interfaces 2Cole-Parmer Begins 2014 with the Release of Preferred Solutions 2
... BOULDER, Colo., April 8, 2008 Tapestry,Pharmaceuticals, Inc. ... had received a,letter from the Nasdaq Stock Market ... Tapestry,s Form 10-K for the period ended January,2, ... that unless,appealed, trading in Tapestry,s common stock will ...
... ShapeGrabber and Nikon,Instruments Inc. today announced ... a,sales distribution channel in the United States ... inspection systems. This arrangement will,increase ShapeGrabber,s current ... Nikon to provide customers with,additional non-contact solutions ...
... Match Medicare Policy, SAN CARLOS, Calif., ... and Medicaid Services (CMS) have approved at-home ... policy had mandated that,suspected sleep apnea sufferers ... positive airway pressure (CPAP) treatment for,Medicare patients ...
Cached Biology Technology:Tapestry Receives Nasdaq Delisting Notice 2ShapeGrabber and Nikon Instruments Inc. Announce Distribution Agreement 2Medicare Approves in Home Sleep Apnea Testing 2
Carrier Serum...
The Lambda Control Kit contains lambda DNA and two 25mer primers, which can be used to amplify a 500bp fragment. The lambda DNA is purified by CsCl gradient centrifugation and organic extraction foll...
A robust formulation of Taq Polymerase supplied with a 10X colored reaction buffer which allows Direct Gel-Loading...
... of Taq DNA polymerase. It is a ... Expressed from a gene construct in E. ... 5'-3' exonuclease domain of the DNA polymerase-encoding ... and even more heat-stable DNA polymerase activity ...
Biology Products: