nervous system
N |
• mice exhibit normal dopaminergic neurons and striatal catecholamine levels
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• the response of nigral neurons to dopamine treatment exhibits a smaller amplitude and shorter duration of hyperpolarization than in similarly treated wild-type cells
• dopamine-treated nigral neurons exhibit a shorter time to predrug firing activity compared with similarly treated wild-type neurons
• quinpirole-treated nigral neurons are less sensitive than similarly treated wild-type neurons
• amphetamine-treated neurons exhibit a shorter cessation of firing compared with similarly treated wild-type neurons with smaller hyperpolarization
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homeostasis/metabolism
• the response of nigral neurons to dopamine treatment exhibits a smaller amplitude and shorter duration of hyperpolarization than in similarly treated wild-type cells
• dopamine-treated nigral neurons exhibit a shorter time to predrug firing activity compared with similarly treated wild-type neurons
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• amphetamine-treated neurons exhibit a shorter cessation of firing compared with similarly treated wild-type neurons with smaller hyperpolarization
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behavior/neurological
• following treatment with amphetamine, mice fail to exhibit an increase in locomotor activity unlike similarly treated wild-type mice
• mice treated with quinpirole do not exhibit as much of a decrease in locomotor activity (horizontal and vertical movements) as similarly treated wild-type mice
• quinpirole-treated nigral neurons are less sensitive than similarly treated wild-type neurons
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• following treatment with amphetamine, mice fail to exhibit an increase in locomotor activity unlike similarly treated wild-type mice
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endocrine/exocrine glands
• adrenal chromaffin cells exhibit reduced catecholamine release per cell, quantal size, and frequency of release events when stimulated with high potassium ion compared to similarly treated wild-type cells
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