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Kidney dopamine regulates blood pressure, life span
Date:7/19/2011

get for treating chronic kidney diseases. Discovering another target the kidney dopamine system is exciting, the researchers said. They are exploring whether specific drugs that enhance the kidney dopamine system are effective in blocking hypertension and treating progressive kidney diseases.

The investigators predicted changes in kidney function in the mouse model, but they were "very surprised" to discover that the modified mice only lived about half as long as normal mice (15 months versus 30 months). They found increases in stress-related proteins in the kidney, heart and vasculature, suggesting that elimination of kidney dopamine causes systemic effects, Harris said.

"This kidney-specific dopamine system is not only important for kidney function and blood pressure regulation, but also for the overall health of the animal," Harris said. "If the dopamine system in the kidney is altered, the animals have a markedly shortened life span."


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Contact: Leigh MacMillan
leigh.macmillan@vanderbilt.edu
615-322-4747
Vanderbilt University Medical Center
Source:Eurekalert

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