MELAS Syndrome Index

Featured: MELAS Syndrome Main Article

MELAS syndrome, a rare form of dementia, stands for Mitochondrial Encephalopathy, Lactic Acidosis, and Stroke-like episodes. Mutations in the genetic material (DNA) in the mitochondria cause MELAS syndrome. Symptoms of MELAS include brain dysfunction (encephalopathy) with seizures and headaches, muscle disease with lactic acid build-up in the blood, temporary local paralysis, and abnormal thinking (dementia). There is no known treatment for MELAS.

Patient Discussions - Viewers share their comments

    Related Diseases & Conditions

    • Seizure (Epilepsy) Epilepsy is a brain disorder in which the person has seizures. There are two kinds of seizures, focal and generalized. There are...learn more »
      In This Article
      Seizure (Epilepsy) Article
      • Epilepsy Facts*
      • Introduction
      • What is epilepsy?
      • What causes epilepsy?
      • What are the different kinds of seizures?
      • Focal seizures
      • Generalized seizures
      • What are the different kinds of epilepsy?
      • When are seizures not epilepsy?
      • First seizures
      • Febrile seizures
      • Nonepileptic events
      • Eclampsia
      • How is epilepsy diagnosed?
      • Can epilepsy be prevented?
      • How can epilepsy be treated?
      • How does epilepsy affect daily life?
      • Are there special risks associated with epilepsy?
      • What research is being done on epilepsy?
      • How can I help research on epilepsy?
      • What to do if you see someone having a seizure
      • Conclusion
      • Where can I get more information?
    • Stroke A stroke is an interruption of the blood supply to part of the brain caused by either a blood clot (ischemic) or bleeding...learn more »
      In This Article
      Stroke Article
      • Stroke facts
      • What is a stroke?
      • What are the different types of stroke?
      • What are the warning signs of a stroke?
      • What are the symptoms of a stroke?
      • How is a stroke diagnosed?
      • What is the treatment for stroke?
      • What is the prognosis for stroke?
      • Is recovery after a stroke possible?
      • What is stroke rehabilitation?
      • Can strokes be prevented?
    • Dementia Dementia is a significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or...learn more »
      In This Article
      Dementia Article
      • Dementia facts*
      • Introduction to dementia
      • What is dementia?
      • What are the different kinds of dementia?
      • Alzheimer's disease
      • Vascular dementia
      • Lewy body dementia
      • Frontotemporal dementia
      • HIV-associated dementia
      • Huntington's disease
      • Dementia pugilistica
      • Corticobasal degeneration
      • Creutzfeldt-Jakob disease
      • Other rare hereditary dementias
      • Secondary dementias
      • Dementias in children
      • What other conditions can cause dementia?
      • What conditions are not dementia?
      • What causes dementia?
      • What are the risk factors for dementia?
      • How is dementia diagnosed?
      • Is there any treatment for dementia?
      • Can dementia be prevented?
      • What kind of care does a person with dementia need?
      • What research is being done?
      • How can I help research?
      • Where can I get more information?
    • Genetic Disease Genetic disease is a disorder or condition caused by abnormalities in a person's genome. Types of genetic inheritance include...learn more »
      In This Article
      Genetic Disease Article
      • What is a genetic disease?
      • What are the different types of inheritance?
      • Single gene inheritance
      • Multifactorial inheritance
      • Chromosome abnormalities
      • Mitochondrial inheritance
      • What is the human genome?
    • Mitochondrial Disease Learn about mitochondrial disease, genetic disease in which include a group of neuromuscular diseases that are caused by damage...learn more »
      In This Article
      Mitochondrial Disease Article
      • Mitochondrial myopathies facts*
      • What are mitochondrial myopathies?
      • What are the symptoms of mitochondrial myopathies?
      • Is there any treatment for mitochondrial disease?
      • What is the prognosis for mitochondrial disease?
      • What research is being done for mitochondrial disease?
      • Organizations
    • Encephalopathy Encephalopathy means brain disease, damage, or malfunction. Causes of encephalopathy are varied and numerous. The main symptom of...learn more »
      In This Article
      Encephalopathy Article
      • Encephalopathy facts
      • Encephalopathy definition and overview
      • What causes encephalopathy?
      • What are the symptoms of encephalopathy?
      • How is encephalopathy diagnosed?
      • What is the treatment for encephalopathy?
      • What are the complications of encephalopathy?
      • What is the prognosis (outlook) for encephalopathy?
      • Can encephalopathy be prevented?
      • For more information on types of encephalopathy

Health & Living

Tools & References


Terms related to MELAS Syndrome:

  • Lactic Acidosis
  • Mitochondrial Encephalomyopathy
  • Stroke-like Episodes