Diseases & Conditions


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Acidemia, Methylmalonic


Synonyms of Acidemia, Methylmalonic
  • Methylmalonic Aciduria

Disorder Subdivisions



    General Discussion
    The methylmalonic acidemias are organic acidemias caused by an enzymatic defect in the metabolism of four amino acids (methionine, threonine, isoleucine and valine). This results in an abnormally high level of acid in the blood (academia) and body tissues. In the acute form, drowsiness, coma, and seizures may occur. Mental retardation is a long-term consequence. The disorder may be caused by a deficiency of one or more of the enzymes methylmalonyl CoA mutase, methylmalonyl racemase, or adenosylcobalamin synthetic enzymes. Excretion of methylmalonate, a product of amino acid metabolism, in the urine is abnormally high and therefore is a marker of the disorder. All known organic acidemias are inherited as autosomal recessive traits.
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    Organizations related to Acidemia, Methylmalonic
    • CLIMB (Children Living with Inherited Metabolic Diseases)
      Climb Building
      Crewe Intl CW2 6BG
      Phone #: +44- 87-0 7700 325
      800 #: --
      e-mail: info@climb.org.uk
      Home page: http://www.CLIMB.org.uk
    • MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
      150 Custer Court
      Green Bay WI 54301-1243
      Phone #: 920-336-5333
      800 #: 877-336-5333
      e-mail: mums@netnet.net
      Home page: http://www.netnet.net/mums/
    • NIH/National Digestive Diseases Information Clearinghouse
      2 Information Way
      Bethesda MD 20892-3570
      Phone #: 301-654-3810
      800 #: 800-891-5389
      e-mail: nddic@info.niddk.nih.gov
      Home page: http://www.niddk.nih.gov
    • Organic Acidaemias UK
      5 Saxon Road
      Middlesex Intl TW15 1QL
      Phone #: 44--178-4-245989
      800 #: --
      e-mail: davidpriddy@bigfoot.com
      Home page: N/A
    • Organic Acidemia Association
      13210 35th Avenue North
      Plymouth MN 55441
      Phone #: 763-559-1797
      800 #: --
      e-mail: OAANews@aol.com
      Home page: http://www.oaanews.org
    • Taking Action Against Language Disorders for Kids, Inc.
      22980 Donna Lane
      Bend OR 97701
      Phone #: 503-389-0004
      800 #: --
      e-mail: N/A
      Home page: N/A
    • The Arc (a national organization on mental retardation)
      1010 Wayne Ave
      Silver Spring MD 20910
      Phone #: 301-565-3842
      800 #: 800-433-5255
      e-mail: info@thearc.org
      Home page: http://www.thearc.org/



    For a Complete Report

    This is an abstract of a report from the National Organization for Rare Disorders, Inc. ? (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html