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Discovery of pathway leading to depression reveals new drug targets
Date:12/6/2012

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Finally, in order to test the findings, the researchers used a compound called purmorphamine, which is known to stimulate the Hedgehog pathway. They found that by using this drug, they were able to reverse the damaging effects of stress hormones, and normalise the production of new brain cells.

Dr Christoph Anacker, lead author of the study from King's Institute of Psychiatry says: "By decreasing the number of new-born cells in the human brain, stress hormones damage many important brain functions and may contribute to the development of depression after a period of chronic stress. By inhibiting the Hedgehog signalling pathway, stress hormones reduce the development of immature 'stem' cells into mature 'brain' cells."

Dr. Anacker continues: "With as much as half of all depressed patients failing to improve with currently available treatments, developing new, more effective antidepressants still remains a great challenge, which makes it crucial to identify new potential mechanisms to target. The discovery of antidepressants has so far been mainly by serendipity. Developing a drug with a defined effect on the brain, such as increasing the number of new-born brain cells, and with a clear target, such as Hedgehog signalling, will allow us to develop much more specific antidepressants in the future."


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Contact: Seil Collins
seil.collins@kcl.ac.uk
44-207-848-5377
King's College London
Source:Eurekalert

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