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To clarify the contribution of stress to classical conditioning-associated asthmatic responses, the effect of fasting stress on conditioned histamine release was investigated in a guinea pig model of asthma. The animals were randomly divided into 2 groups for Experiment 1 and 2, and received a conditioning procedure in which ovalbumin (OA) as an unconditioned stimulus (US) and dimethylsulfide (DMS,...
Many clinical and experimental data have shown that learning can occur under general anesthesia. To clarify this possibility with respect to allergic reactions, particularly asthmatic responses, we first established classical conditioned histamine release in response to a neutral odor by using pairings of the odor and an inhaled antigen for five sessions (Experiment 1) and then investigated whether...
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