#Login Register


  • 13 Vote(s) - 2.85 Average
Home 


Researchers discover how brain circuits can become miswired during development
06-06-2013, 10:38 PM #1
----- Incognito Anonymous
 
Snippet:
Quote:During brain development, neurons have to connect to each other, which they do by extending their long axons to touch one another. Ultimately, these neurons form a circuit between the brain and the target tissue through which chemical and electrical signals are relayed. In this study, researchers investigated neurons that travel up the spinal cord into the brain. "It is very critical that axons are precisely positioned in the spinal cord," Dr. Jaffrey says. "If they are improperly positioned, they will form the wrong connections, which can lead to signals being sent to the wrong target cells in the brain." The way that an axon guides and finds its proper target is through so-called growth cones located at the tips of axons. "These growth cones have the ability to sense the environment, determine where the targets are and navigate toward them. The question has always been—how do they know how to do this? Where do the instructions come from that tell them how to find their proper target?" Dr. Jaffrey says. The team found that RNA molecules embedded in the growth cone are responsible for instructing the axon to move left or right, up or down. These RNAs are translated in growth cones to produce antenna-like proteins that steer the axon like a self-guided missile. "As a circuit is being built, RNAs in the neuron's growth cones are mostly silent. We found that specific RNAs are only read at precise stages in order to produce the right protein needed to steer the axon at the right time. After the protein is produced, we saw that the RNA instruction is degraded and disappears," he says. "If these RNAs do not disappear when they should, the axon does not position itself properly—it may go right instead of left—and the wiring will be incorrect and the circuit may be faulty," Dr. Jaffrey says.
Read more at: http://medicalxpress.com/news/2013-06-br...d.html#jCp
06-06-2013, 10:48 PM #2
Cynicalabsurdance Member
Posts:9,225 Threads:212 Joined:Feb 2011
wow

it's like it's supposed to be important or sumpin'

though i don't know why lmao.gif
06-06-2013, 10:53 PM #3
Octo Mother Superior
Posts:43,357 Threads:1,482 Joined:Feb 2011
Well I'm pretty sure it counts for something. chuckle.gif

Quote:The human brain is heralded for its staggering complexity and processing capacity: its hundred billion neurons and several hundred trillion synaptic connections can process and exchange prodigious amounts of information over a distributed neural network in the matter of milliseconds.
http://theastronomist.fieldofscience.com...brain.html

wave.gif Entropy
Anonymous Kritter Show this Post
06-07-2013, 12:40 AM #4
Anonymous Kritter Incognito Anonymous
 
So that's why I shouldn't have smoked all that pot when I was 12.
06-07-2013, 04:43 AM #5
Cynicalabsurdance Member
Posts:9,225 Threads:212 Joined:Feb 2011
maybe tit milk causes it to misdirect to Bewbs !

no wonder us guys are so Bewbby junkies



Home 




 



DISCLAIMER / Terms of Service (TOS):
Kritterbox.com - Socialize anonymously, commentary, discussion, oddities, technology, music and more!  This website is provided "as is" without warranty of any kind, either expressed or implied. kritterbox.com shall not be liable for any damages whatsoever, including, without limitation, those resulting from loss of use, data or profits, whether or not advised of the possibility of damage, and on any theory of liability, arising out of or in connection with the use or performance of this site or other documents which are referenced by or linked to this site.
This website exists solely for the purposes of exchange of information, communication and general entertainment. Opinions from posters are in no way endorsed by kritterbox.com. All posts on this website are the opinion of the authors and are not to be taken as statements of fact on behalf of kritterbox.com. This site may contain coarse language or other material that kritterbox.com is in no way responsible for. Material deemed to be offensive or pornographic at the discretion of kritterbox.com shall be removed. kritterbox.com reserves the right to modify, or remove posts and user accounts on this website at our discretion. kritterbox.com disclaims all liability for damages incurred directly or indirectly as a result of any material on this website. Fictitious posts and any similarity to any person living or dead is coincidental.
All users shall limit the insertion of any and all copyrighted material to portions of the article that are relevant to the point being made, with no more than 50%, and preferably less of the original source material. A link shall be visible in text format, embedded directly to the original source material without exception.
No third party links, i.e. blogs or forums will be accepted under any circumstances, and will be edited by staff in order to reflect the original source of copyrighted material, or be removed at the sole discretion of kritterbox.com.
Fair Use Notice:
This site may contain copyrighted material the use of which has not always been specifically authorized by the copyright owner. Users may make such material available in an effort to advance awareness and understanding of issues relating to economics, individual rights, international affairs, liberty, science, and technology. This constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C.Section 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for educational and/or research purposes.
This Disclaimer is subject to change at any time at our discretion.
Copyright © 2011 - 2017 kritterbox.com