National Center for Advancing and Translational Sciences Genetic and Rare Diseases Information Center, a program of the National Center for Advancing and Translational Sciences

RRM2B-related mitochondrial DNA depletion syndrome



Other Names:
Mitochondrial DNA depletion syndrome, encephalomyopathic form with renal tubulopathy; Mitochondrial DNA depletion syndrome 8A; Encephalomyopathic type with renal tubulopathy; Mitochondrial DNA depletion syndrome, encephalomyopathic form with renal tubulopathy; Mitochondrial DNA depletion syndrome 8A; Encephalomyopathic type with renal tubulopathy; mtDNA depletion syndrome, encephalomyopathic form with renal tubulopathy See More
Categories:
This disease is grouped under:

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

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Medical Terms Other Names
Learn More:
HPO ID
Percent of people who have these symptoms is not available through HPO
Aminoaciduria
High urine amino acid levels
Increased levels of animo acids in urine
[ more ]
0003355
Autosomal recessive inheritance 0000007
Cachexia
Wasting syndrome
0004326
External ophthalmoplegia
Paralysis or weakness of muscles within or surrounding outer part of eye
0000544
Failure to thrive
Faltering weight
Weight faltering
[ more ]
0001508
Feeding difficulties
Feeding problems
Poor feeding
[ more ]
0011968
Gait ataxia
Inability to coordinate movements when walking
0002066
Generalized hypotonia
Decreased muscle tone
Low muscle tone
[ more ]
0001290
Intellectual disability
Mental deficiency
Mental retardation
Mental retardation, nonspecific
Mental-retardation
[ more ]
0001249
Lactic acidosis
Increased lactate in body
0003128
Progressive
Worsens with time
0003676
Progressive neurologic deterioration
Worsening neurological symptoms
0002344
Proximal tubulopathy 0000114
Seizure 0001250
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Last updated: 7/1/2020

If you need medical advice, you can look for doctors or other healthcare professionals who have experience with this disease. You may find these specialists through advocacy organizations, clinical trials, or articles published in medical journals. You may also want to contact a university or tertiary medical center in your area, because these centers tend to see more complex cases and have the latest technology and treatments.

If you can’t find a specialist in your local area, try contacting national or international specialists. They may be able to refer you to someone they know through conferences or research efforts. Some specialists may be willing to consult with you or your local doctors over the phone or by email if you can't travel to them for care.

You can find more tips in our guide, How to Find a Disease Specialist. We also encourage you to explore the rest of this page to find resources that can help you find specialists.

Healthcare Resources


Research helps us better understand diseases and can lead to advances in diagnosis and treatment. This section provides resources to help you learn about medical research and ways to get involved.

Patient Registry


Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

Organizations Supporting this Disease


These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

In-Depth Information

  • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
  • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.

Questions sent to GARD may be posted here if the information could be helpful to others. We remove all identifying information when posting a question to protect your privacy. If you do not want your question posted, please let us know.