What type of inclusion body is found in nerve cells in Parkinson's disease?

Prepare for USMLE Step 1 Pathology Exam with comprehensive quizzes, flashcards, and detailed explanations. Enhance your understanding and be exam-ready!

In Parkinson's disease, the type of inclusion body that is characteristically found in nerve cells is the Lewy body. These are abnormal aggregates of protein that primarily consist of alpha-synuclein, along with other proteins such asubiquitin and lipids. The presence of Lewy bodies is significant as their accumulation is linked to the neurodegenerative processes observed in both Parkinson's disease and some types of dementia.

The role of Lewy bodies in the pathology of Parkinson's disease involves their contribution to the dysfunction and death of dopaminergic neurons in the substantia nigra, a key brain region affected by this condition. As these Lewy bodies develop, they disrupt normal cellular function and facilitate neurodegeneration. This is pivotal in understanding the clinical manifestations of Parkinson's disease, which include bradykinesia, resting tremor, and rigidity.

The other types of inclusion bodies listed are associated with different conditions: Negri bodies are linked to rabies infection, Mallory bodies are found in alcoholic liver disease, and owl's eye inclusions are typically seen in infections caused by cytomegalovirus (CMV). Understanding the specific pathology associated with these inclusion bodies is crucial for diagnosing and managing various diseases, contributing to the overall knowledge of

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