Life Sciences
New life sciences research from University of Iowa outlined
Published in Mental Health Weekly Digest, January 25th, 2010
"Because the amygdala expresses acid-sensing ion channel-1a (ASIC1a), and ASIC1a is required for normal fear responses, we hypothesized that the amygdala might detect a reduced pH. We found that inhaled CO2 reduced brain pH and evoked fear behavior in mice. Eliminating or inhibiting ASIC1a markedly impaired this activity, and localized ASIC1a expression in the amygdala rescued the CO2-induced fear deficit of ASIC1a null animals. Buffering pH attenuated fear...
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