Canadian Health Information Management Association Practice Exam

Which disease is linked to excessive dopamine secretion and abnormal brain cell function?

1. Creutzfeldt-Jakob disease.

2. Depression.

3. Panic disorder.

4. Schizophrenia.

The correct answer is: Schizophrenia.

Dopamine is a key neurotransmitter involved in various brain functions, including mood regulation, reward processing, and cognition. Schizophrenia is particularly associated with dysregulation of dopamine systems in the brain. Research has shown that individuals with schizophrenia often exhibit excessive dopamine activity in certain brain regions, which can lead to symptoms such as hallucinations, delusions, and disorganized thinking. The abnormal functioning of brain cells, specifically in the dopaminergic pathways, contributes significantly to the clinical manifestations of schizophrenia. This relationship highlights the importance of dopamine in the pathophysiology of the disorder, suggesting that therapeutic approaches targeting dopamine levels may be effective in managing symptoms. In contrast, while some other conditions may involve dopamine, such as depression or panic disorder, they do not correlate with the level of excessive dopamine secretion linked to schizophrenia. Creutzfeldt-Jakob disease is a prion disease primarily associated with neurodegeneration and does not involve the same dopaminergic dysfunction. Therefore, the direct connection between excessive dopamine secretion and the abnormal brain cell function characterizes schizophrenia distinctly from the other options.