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Quote of the day

When seen through the lens of technology, few resources are truly scarce; they’re mainly inaccessible. 

 

Peter Diamandis

Scientists tag brain molecules, watch them become memories

RATE THIS! +42
Posted in Science on 29th Jan, 2014 04:47 AM by AlexMuller

As human beings, our memories are part of what make us ourselves. But the process of how memories form in our brains still eludes scientists. If we could understand exactly what happens on a molecular level during memory creation, perhaps we could find a solution to brain diseases that affect memories, like Alzheimer's.

 

A team of scientists at Albert Einstein College of Medicine have found a way to study the process: they've learned how to tag molecules in the brain that allows them to watch memories as they form.

 
The neurons of the brain are very sensitive to changes, making them difficult to observe. However, the researchers figured out that using green fluorescent tags on molecules of mRNA (messenger RNA) could make watching the memory-making process possible.
 
mRNA controls a protein which is an important element of memory creation, and the tagging allowed the scientists to watch what happens as a memory is created and formed.
 
So what did the researchers observe? After stimulating neurons in the hippocampus of a mouse brain, the brain created new mRNA molecules. This caused neurons to join together, sort of like what happens when you entwine the fingers of your hands. Memories occur when these connections stay in contact with each other, and researchers were able to watch the entire process as it happened.

Tags: brainneurosciencememoryAlzheimer'smRNA

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Comments

Author: Guest
Posted: 2014-01-29
+3
Fluorescent proteins made possible many discoveries in biology and transformed the way we can observe changes at the molecular level - another great application Reply
Author: Guest
Posted: 2014-01-29
+1
This is an amazing advance. Efforts to discover how neurons make memories have long confronted a problem that neurons are extremely sensitive to any kind of disruption. And the only way to find things out about the molecular processes that culminate in memories is to interfere without a disruption. This work achieved just that Reply
Author: Guest
Posted: 2014-01-29
+2
This is a great contribution. Scientists watched fluorescently glowing beta-actin mRNA molecules form in the nuclei of neurons and travel within the neuron's branched projections. They discovered that mRNA in neurons is regulated through a novel process described as "masking" and "unmasking". Reply
Author: Guest
Posted: 2014-01-29
+1
Brain is the most complex structure that exists - as far as we know - there is a big investment to learn more Reply
Author: Guest
Posted: 2014-01-29
+0
Neuroscience is so fascinating. Our brains hold a seemingly endless supply of information. How are we able to learn, store, and recall information with such ease? Reply
Author: Guest
Posted: 2015-02-18
+0
Urgent . longchamp pour les cours taille l ou m ?. Bonjour , La rentrée approche à grand pas et ma mère est d'accord pour me payer un longchamp mais je n'arrive pas à me décider . Pour l'entrée en 2nde faut-il. Reply
Author: Guest
Posted: 2015-02-18
+0
photographie noir etlanc paris,Nike Air Max LeBron 8 VIII Grislanc Gris [Air Max LeBron 8 Low 004] Reply
Author: Guest
Posted: 2015-02-18
+0
Longchamp. - Faïence. Cette page fait partie du catalogue de Cristal de France, site présentant et proposant les modèles et services des plus grandes marques des arts de la table à la française, que ce soit dans le cristal, la porcelaine, la faience ou l'orfevrerie. Parmi ces anciennes et prestigieuses marques évoquant le luxe on retrouve bien entendu Baccarat, Limoges, Haviland, Christofle, Lalique ou Daum. Reply


 

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