3D brain view may help treat Alzheimer's, Parkinson's

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New York, June 29 (IANS) In a breakthrough that may help in developing drugs for Alzheimer's and other neurological disorders, researchers have developed a 3D view of an important receptor in the brain.

This receptor allows us to learn and remember, and its dysfunction can result in a wide range of neurological diseases including Alzheimer's, Parkinson's, schizophrenia and depression.

The unprecedented view gives scientists new insight into how the receptor - called the NMDA receptor - is structured.

And importantly, the new detailed view gives vital clues for developing drugs to combat neurological diseases and conditions.

"This is the most exciting moment of my career," said Eric Gouaux, a senior scientist with Oregon Health and Science University in the US.

"The NMDA receptor is one of the most essential, and still sometimes mysterious, receptors in our brain. Now, with this work, we can see it in fascinating detail," he said.

Receptors facilitate chemical and electrical signals between neurons in the brain allowing them to communicate with each other.

The NMDA (N-methyl-D-aspartate) receptor facilitates neuron communication that is the foundation of memory, learning and thought.

Malfunction of the NMDA receptor occurs when it is increasingly or decreasingly active.

The NMDA receptor makeup includes receptor "subunits" - all of which have distinct properties and act in distinct ways in the brain, sometimes causing neurological problems.

Prior to Gouaux's study, scientists had only a limited view of how those subtypes were arranged in the NMDA receptor complex and how they interacted to carry out specific functions within the brain and the central nervous system.

Gouaux's team of scientists created a 3D model of the NMDA receptor through a process called X-ray crystallography.

"This new detailed view will be invaluable as we try to develop drugs that might work on specific subunits and therefore help fight or cure some of these neurological diseases and conditions," Gouaux said.

"Seeing the structure in more detail can unlock some of its secrets and may help a lot of people," he added.

The findings were published online in the journal Nature.

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