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Morpho‐Functional Changes of Nigral Dopamine Neurons in an α‐Synuclein Model of Parkinson's Disease

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The accumulation of α‐synuclein (α‐syn) fibrils in intraneuronal inclusions called Lewy bodies and Lewy neurites is a pathological signature of Parkinson's disease (PD). Although several aspects linked to α‐syn–dependent pathology… Click to show full abstract

The accumulation of α‐synuclein (α‐syn) fibrils in intraneuronal inclusions called Lewy bodies and Lewy neurites is a pathological signature of Parkinson's disease (PD). Although several aspects linked to α‐syn–dependent pathology (concerning its spreading, aggregation, and activation of inflammatory and neurodegenerative processes) have been under intense investigation, less attention has been devoted to the real impact of α‐syn overexpression on structural and functional properties of substantia nigra pars compacta (SNpc) dopamine (DA) neurons, particularly at tardive stages of α‐syn buildup, despite this has obvious relevance to comprehending mechanisms beyond PD progression.

Keywords: dopamine neurons; parkinson disease; functional changes; morpho functional

Journal Title: Movement Disorders
Year Published: 2022

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