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

Medium Chain Acyl CoA Dehydrogenase Deficiency


Synonyms of Medium Chain Acyl CoA Dehydrogenase Deficiency
  • ACADM Deficiency
  • Carnitine Deficiency Secondary to MCAD Deficiency
  • Dicarboxylicaciduria due to defect in Beta-Oxidation of Fatty Acids
  • Dicarboxylicaciduria due to MCADH Deficiency
  • MCAD Deficiency
  • Nonketotic Hypoglycemia and Carnitine Deficiency due to MCAD Deficiency

Disorder Subdivisions



    General Discussion
    Medium chain acyl-CoA dehydrogenase (MCAD) deficiency is a rare genetic metabolic disorder characterized by a deficiency of the enzyme medium chain acyl-CoA dehydrogenase. This enzyme is found to be most active in the liver, certain white blood cells (leukocytes), and certain connective tissue cells (fibroblasts) and is necessary for the breakdown (oxidation) of certain fats (medium chain fatty acids). Failure to break down these fats can lead to the abnormal accumulation of fatty acids in the liver and the brain. Abnormally low levels of the MCAD enzyme may also hamper or interrupt other processes associated with the metabolism of fatty acids.

    In infants with MCAD deficiency, symptoms may include recurrent episodes of unusually low levels of a certain sugar (glucose) in the blood (hypoglycemia), lack of energy (lethargy), vomiting, and/or liver malfunction. These symptoms are most frequently triggered when an affected infant does not eat for an extended period of time (fasting). In some cases, a viral illness (e.g., upper respiratory infection) that limits food intake may cause the symptoms to occur. MCAD deficiency is the most common disease in a group of disorders that involve abnormalities of fatty acid metabolism (fatty acid oxidation disorders [FODs]). MCAD deficiency is inherited as an autosomal recessive trait.

    Organizations related to Medium Chain Acyl CoA Dehydrogenase Deficiency
    • 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
    • FOD (Fatty Oxidation Disorders) Family Support Group
      2041 Tomahawk
      Okemos MI 48864
      Phone #: 517-381-1940
      800 #: --
      e-mail: deb@fodsupport.org
      Home page: http://www.fodsupport.org
    • Lactic Acidosis Support Trust
      1A Whitley Close
      Cheshire None CW10 0NQ
      Phone #: 016-068-3719
      800 #: --
      e-mail: N/A
      Home page: N/A
    • 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/
    • Madisons Foundation
      PO Box 241956
      Los Angeles CA 90024
      Phone #: 310-264-0826
      800 #: N/A
      e-mail: getinfo@madisonsfoundation.org
      Home page: http://www.madisonsfoundation.org
    • NIH/National Institute of Diabetes, Digestive & Kidney Diseases
      Endocrine Diseases Metabolic Diseases Branch
      Bethesda MD 20892-3570
      Phone #: 301-654-3810
      800 #: --
      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
    • United Mitochondrial Disease Foundation
      8085 Saltsburg Road
      Pittsburgh PA 15239
      Phone #: 412-793-8077
      800 #: --
      e-mail: info@umdf.org
      Home page: http://www.umdf.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

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