Manganese and Movement Disorders: A Review

Area of Science:

• Environmental Science
• Neuroscience
• Toxicology

Background:

• Industrial expansion increases demand for heavy metals, leading to environmental contamination.
• Chronic exposure to heavy metals, including Manganese (Mn), poses health risks to both occupational and general populations.
• Manganese is essential for biological functions but can cause neurotoxicity, particularly parkinsonism.

Purpose of the Study:

• To critically analyze Manganese (Mn) and its associated health impacts.
• To discuss the sources of Mn exposure, its pathophysiology, and clinical manifestations.
• To highlight the global public health implications of Mn exposure and its potential misdiagnosis.

Main Methods:

• Literature review analyzing scientific and technological advances related to heavy metal demand and contamination.
• Critical analysis of existing research on Manganese (Mn) exposure, pathophysiology, and clinical manifestations.
• Emphasis on reviewing case studies and epidemiological data concerning Mn-induced neurotoxicity.

Main Results:

• Manganese (Mn) overexposure commonly manifests as parkinsonism, often mistaken for idiopathic Parkinson's disease.
• Hypermanganesemia can result from environmental exposure, systemic conditions, total parenteral nutrition, or genetic factors.
• Detailed occupational and social history is vital for differentiating Mn-induced parkinsonism from neurodegenerative diseases.

Conclusions:

• Movement disorder specialists must consider Mn toxicity in differential diagnoses to prevent misdiagnosis of neurodegenerative conditions.
• Early identification of Mn exposure and prompt implementation of preventive strategies are key to managing its toxic effects.
• There is a need for increased awareness and diagnostic diligence regarding Manganese (Mn) neurotoxicity in public health.