Manganese poisoning

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4FDA treatments4Specialists8Treatment centers

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Overview

Manganese poisoning, also called manganism or manganese toxicity, is a condition caused by excessive exposure to the metal manganese. It is not a genetic disease but rather an environmental or occupational illness. Manganese is a naturally occurring element that the body needs in tiny amounts, but when too much builds up in the body — especially in the brain — it can cause serious damage to the nervous system. The condition most commonly affects workers in industries such as mining, welding, steel manufacturing, and battery production, where manganese dust or fumes are inhaled over long periods. It can also occur from contaminated drinking water, certain medications, or in people with liver disease who cannot properly clear manganese from the body. In rare cases, it has been linked to illicit drug use involving manganese-containing compounds. Manganese poisoning primarily damages a part of the brain called the basal ganglia, which controls movement. Early symptoms often include mood changes, irritability, and difficulty sleeping. As the condition progresses, patients may develop tremors, slow movement, stiff muscles, difficulty walking, and problems with balance — symptoms that closely resemble Parkinson's disease. Some people also experience psychiatric symptoms such as hallucinations, aggression, or emotional instability. Treatment focuses on removing the source of manganese exposure and may include chelation therapy to help the body eliminate excess manganese. Unfortunately, some neurological damage may be permanent even after exposure stops.

Also known as:

Key symptoms:

Tremors or shaking of the handsSlow movementMuscle stiffness or rigidityDifficulty walking or unsteady gaitProblems with balanceMood swings and irritabilityDepression or anxietyDifficulty sleepingMemory problemsSlurred or slow speechReduced facial expression (mask-like face)Hallucinations or psychosisFatigue and weaknessDifficulty with fine motor tasks like writingHeadaches

Clinical phenotype terms (30)— hover any for plain English
Cogwheel rigidityHP:0002396Abnormal globus pallidus morphologyHP:0002453Abnormality of mitochondrial metabolismHP:0003287Sleep-wake cycle disturbanceHP:0006979Increased reactive oxygen species productionHP:0025464DelusionHP:0000746Inappropriate laughterHP:0000748
Inheritance

Sporadic

Usually appears on its own, not inherited from a parent

Age of Onset

Adult

Begins in adulthood (age 18 or older)

Orphanet ↗NORD ↗

Treatments

4 available

Urea 39.5% With 2% Salicylic Acid

UREA, SALICYLIC ACID· PureTek Corporation

Urea is useful for the treatment of damaged, ingrown and devitalized nails

Dermacure

UREA 41%· Oncora Pharma, LLC

Urea is useful for the treatment of damaged, ingrown and devitalized nails

Protopam Chloride

PRALIDOXIME CHLORIDE· Baxter Healthcare Corporation

In the treatment of poisoning due to those pesticides and chemicals (e.g., nerve agents) of the organophosphate class which have anticholinesterase activity

Urea Cream 40 Percent

UREA· Method Pharmaceuticals, LLC

Urea is useful for the treatment of damaged, ingrown and devitalized nails

No actively recruiting trials found for Manganese poisoning at this time.

New trials open frequently. Follow this disease to get notified.

Search ClinicalTrials.gov ↗Join the Manganese poisoning community →

Specialists

4 foundView all specialists →
NK
Naila Kanwal
Specialist
PI on 2 active trials2 Manganese poisoning publications
QM
Qian Ming
Specialist
2 Manganese poisoning publications
JL
Jun Li
Specialist
2 Manganese poisoning publications
HZ
Hua Zhao
FLUSHING, NY
Specialist
2 Manganese poisoning publications

Treatment Centers

8 centers
🏥 NORD

Baylor College of Medicine Rare Disease Center

Baylor College of Medicine

📍 Houston, TX

🏥 NORD

Stanford Medicine Rare Disease Center

Stanford Medicine

📍 Stanford, CA

🔬 UDN

NIH Clinical Center Undiagnosed Diseases Program

National Institutes of Health

📍 Bethesda, MD

🔬 UDN

UCLA UDN Clinical Site

UCLA Health

📍 Los Angeles, CA

🔬 UDN

Baylor College of Medicine UDN Clinical Site

Baylor College of Medicine

📍 Houston, TX

🔬 UDN

Harvard/MGH UDN Clinical Site

Massachusetts General Hospital

📍 Boston, MA

🏥 NORD

Mayo Clinic Center for Individualized Medicine

Mayo Clinic

📍 Rochester, MN

👤 Mayo Clinic Center for Individualized Medicine

🏥 NORD

UCLA Rare Disease Day Program

UCLA Health

📍 Los Angeles, CA

Travel Grants

No travel grants are currently matched to Manganese poisoning.

Search all travel grants →NORD Financial Assistance ↗

Community

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Latest news about Manganese poisoning

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Caregiver Resources

NORD Caregiver Resources

Support, advocacy, and financial assistance for caregivers of rare disease patients.

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Social Security Disability

Learn how rare disease patients may qualify for SSDI/SSI benefits.

Questions for your doctor

Bring these to your next appointment

  • Q1.What is my current manganese level, and how does it compare to normal?,Has the MRI shown any signs of manganese accumulation in my brain?,Would chelation therapy be appropriate in my case, and what are the risks and benefits?,Are there medications that could help manage my movement symptoms or mood changes?,What physical therapy or rehabilitation programs would you recommend?,Is the damage I already have likely to be permanent, or could some symptoms improve over time?,How can I make sure my family members or coworkers are not also being exposed?

Common questions about Manganese poisoning

What is Manganese poisoning?

Manganese poisoning, also called manganism or manganese toxicity, is a condition caused by excessive exposure to the metal manganese. It is not a genetic disease but rather an environmental or occupational illness. Manganese is a naturally occurring element that the body needs in tiny amounts, but when too much builds up in the body — especially in the brain — it can cause serious damage to the nervous system. The condition most commonly affects workers in industries such as mining, welding, steel manufacturing, and battery production, where manganese dust or fumes are inhaled over long perio

How is Manganese poisoning inherited?

Manganese poisoning follows a sporadic inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.

At what age does Manganese poisoning typically begin?

Typical onset of Manganese poisoning is adult. Age of onset can vary across affected individuals.

Which specialists treat Manganese poisoning?

4 specialists and care centers treating Manganese poisoning are listed on UniteRare, sourced from ClinicalTrials.gov principal investigators, published research, and the NPPES NPI registry.