Nobel Prize in Medicine in 2000 Goes To Three Brain Researchers

October 9, 2000 - Stockholm -- The Nobel Assembly at the Karolinska Institute decided to award the Nobel Prize in Physiology or Medicine for the year 2000 jointly to Arvid Carlsson, Paul Greengard and Eric Kandel for their discoveries concerning a communication process known as "signal transduction" in the nervous system. Dr. Carlsson is from Gothenburg, Sweden while Drs. Greengard and Kandel work in New York City.

The awarding of the Nobel Prize to Drs. Carlsson, Greengard and Kandel underlines the importance today of molecular and cell biology in learning how the brain works. Their research is directly relevant to neurologic disorders such as Parkinson disease and schizophrenia as well as the basic brain phenomenon of memory.

Signals between cells in the brain

In the human brain there are more than hundred billion nerve cells. They are connected to each other through an infinitely complex network of nerve processes. The message from one nerve cell to another is transmitted through different chemical transmitters. The signal transduction takes place in special points of contact, called synapses. A nerve cell can have thousands of such contacts with other nerve cells.

The three Nobel Laureates in Physiology or Medicine have made pioneering discoveries concerning one type of signal transduction between nerve cells, referred to as slow synaptic transmission. These discoveries have been crucial for an understanding of the normal function of the brain and how disturbances in this signal transduction can give rise to neurological and psychiatric diseases. These findings have resulted in the development of new drugs.

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