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Xu, C. Isobutyryl-CoA Dehydrogenase Deficiency. Encyclopedia. Available online: https://encyclopedia.pub/entry/4209 (accessed on 19 April 2024).
Xu C. Isobutyryl-CoA Dehydrogenase Deficiency. Encyclopedia. Available at: https://encyclopedia.pub/entry/4209. Accessed April 19, 2024.
Xu, Camila. "Isobutyryl-CoA Dehydrogenase Deficiency" Encyclopedia, https://encyclopedia.pub/entry/4209 (accessed April 19, 2024).
Xu, C. (2020, December 23). Isobutyryl-CoA Dehydrogenase Deficiency. In Encyclopedia. https://encyclopedia.pub/entry/4209
Xu, Camila. "Isobutyryl-CoA Dehydrogenase Deficiency." Encyclopedia. Web. 23 December, 2020.
Isobutyryl-CoA Dehydrogenase Deficiency
Edit
This entry is adapted from the peer-reviewed paper https://medlineplus.gov/genetics/condition/isobutyryl-coa-dehydrogenase-deficiency

Isobutyryl-CoA dehydrogenase (IBD) deficiency is a condition that disrupts the breakdown of certain proteins.

genetic conditions

1. Introduction

Normally, proteins from food are broken down into parts called amino acids. Amino acids can be further processed to provide energy for growth and development. People with IBD deficiency have inadequate levels of an enzyme that helps break down a particular amino acid called valine.

Most people with IBD deficiency are asymptomatic, which means they do not have any signs or symptoms of the condition. A few children with IBD deficiency have developed features such as a weakened and enlarged heart (dilated cardiomyopathy), weak muscle tone (hypotonia), and developmental delay. This condition may also cause low numbers of red blood cells (anemia) and very low blood levels of carnitine, which is a natural substance that helps convert certain foods into energy. The range of signs and symptoms associated with IBD deficiency remains unclear because very few affected individuals have been reported.

2. Frequency

IBD deficiency is a rare disorder; approximately 22 cases have been reported in the medical literature.

3. Causes

Mutations in the ACAD8 gene cause IBD deficiency. This gene provides instructions for making the IBD enzyme, which is involved in breaking down valine. ACAD8 gene mutations reduce or eliminate the activity of the IBD enzyme. As a result, valine is not broken down properly. Impaired processing of valine may lead to reduced energy production and the features of IBD deficiency.

3.1. The gene associated with Isobutyryl-CoA dehydrogenase deficiency

  • ACAD8

4. Inheritance

This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.

5. Other Names for This Condition

  • deficiency of isobutyryl-CoA dehydrogenase

  • IBD deficiency

  • isobutyryl-coenzyme A dehydrogenase deficiency

References

  1. Koeberl DD, Young SP, Gregersen NS, Vockley J, Smith WE, Benjamin DK Jr, An Y,Weavil SD, Chaing SH, Bali D, McDonald MT, Kishnani PS, Chen YT, Millington DS.Rare disorders of metabolism with elevated butyryl- and isobutyryl-carnitinedetected by tandem mass spectrometry newborn screening. Pediatr Res. 2003Aug;54(2):219-23.
  2. Nguyen TV, Andresen BS, Corydon TJ, Ghisla S, Abd-El Razik N, Mohsen AW,Cederbaum SD, Roe DS, Roe CR, Lench NJ, Vockley J. Identification ofisobutyryl-CoA dehydrogenase and its deficiency in humans. Mol Genet Metab. 2002 Sep-Oct;77(1-2):68-79.
  3. Oglesbee D, He M, Majumder N, Vockley J, Ahmad A, Angle B, Burton B, CharrowJ, Ensenauer R, Ficicioglu CH, Keppen LD, Marsden D, Tortorelli S, Hahn SH,Matern D. Development of a newborn screening follow-up algorithm for thediagnosis of isobutyryl-CoA dehydrogenase deficiency. Genet Med. 2007Feb;9(2):108-16.
  4. Pedersen CB, Bischoff C, Christensen E, Simonsen H, Lund AM, Young SP, KoeberlDD, Millington DS, Roe CR, Roe DS, Wanders RJ, Ruiter JP, Keppen LD, Stein Q,Knudsen I, Gregersen N, Andresen BS. Variations in IBD (ACAD8) in children withelevated C4-carnitine detected by tandem mass spectrometry newborn screening.Pediatr Res. 2006 Sep;60(3):315-20.
  5. Roe CR, Cederbaum SD, Roe DS, Mardach R, Galindo A, Sweetman L. Isolatedisobutyryl-CoA dehydrogenase deficiency: an unrecognized defect in human valinemetabolism. Mol Genet Metab. 1998 Dec;65(4):264-71.
  6. Sass JO, Sander S, Zschocke J. Isobutyryl-CoA dehydrogenase deficiency:isobutyrylglycinuria and ACAD8 gene mutations in two infants. J Inherit MetabDis. 2004;27(6):741-5.
  7. Yoo EH, Cho HJ, Ki CS, Lee SY. Isobutyryl-CoA dehydrogenase deficiency with a novel ACAD8 gene mutation detected by tandem mass spectrometry newborn screening.Clin Chem Lab Med. 2007;45(11):1495-7.
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Subjects: Genetics & Heredity
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register :
Camila Xu
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Entry Collection: MedlinePlus
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Update Date: 23 Dec 2020
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