Abstract
A NEW TARGET for treating depression, discovered by researchers in Iowa, may offer an alternative to current antidepressants, which target other mechanisms to treat the condition. “The mechanism issue is important because if a patient doesn’t respond to one drug, the chances of them responding to another drug that works through the same mechanism are low,” says John A. Wemmie, who led the research team. Wemmie is an associate professor of psychiatry and neurosurgery at the University of Iowa and a staff physician and researcher at the Iowa City Veterans Affairs Medical Center. Wemmie’s team focused on a biochemical pathway involving acid-sensing ion channel (ASIC) proteins expressed by neurons. ASICs are activated by protons that are believed to act as neurotransmitters (C&EN, Jan. 14, 2008, page 10). Wemmie and his colleagues concentrated on the ASIC1a class of these ion channels, which are abundant in regions of the brain associated with mood. The research group had ...
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