Isobutyryl-CoA Dehydrogenase Deficiency

Isobutyryl-CoA dehydrogenase (IBD) deficiency is an inborn error of valine metabolism that was first reported in a child with dilated cardiomyopathy, anemia and secondary carnitine deficiency. Very few patients have been reported with IBD deficiency in the literature with the majority of reported patients having been identified after the detection of elevated C4-carnitine by tandem mass spectrometry based newborn screening. Patients first identified by screening have either remained asymptomatic or presented with milder clinical phenotypes including muscle hypotonia, and mild developmental delay.

Tests Available

Forms and Documents

Test Details

ACAD8
  • Confirmation of biochemical diagnosis
  • Discriminate between IBD deficiency and SCAD deficiency
  • Carrier testing
  • Prenatal diagnosis in at risk pregnancies
  • Capillary Sequencing

Ordering

351
4-5 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL) | Dried Blood Spots | Buccal Swabs

Billing

81479x1
No
Yes
  • 796.6 Abnormal findings on neonatal screening
  • 270.3 Disturbances of branched-chain amino-acid metabolism, Disturbances of metabolism of leucine, isoleucine, and valine, Hypervalinemia Intermittent branched-chain ketonuria, Leucine-induced hypoglycemia, Leucinosis, Maple syrup urine disease
* For price inquiries please email zebras@genedx.com

References

  1. Oglesbee et al., (2007) Genet Med 9(2):108-116

Forms and Documents

Test Details

ACAD8, ACADS, ETFA, ETFB, ETFDH, ETHE1
  • Molecular confirmation of a suspected biochemical diagnosis.
  • Testing of patients suspected of having a creatine deficiency syndrome.
  • Prenatal diagnosis for known familial mutation(s) in at-risk pregnancies
  • Next-Gen Sequencing
  • Deletion/Duplication Analysis

Ordering

J980
4 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL) | Buccal Swabs

Billing

81405x1; 81479x1
No
Yes
* For price inquiries please email zebras@genedx.com

References

  1. Wolfe L, Jethva R, Oglesbee D, et al. Short-Chain Acyl-CoA Dehydrogenase Deficiency. 2011 Sep 22 [Updated 2014 Aug 7]. In: Adam MP, Ardinger HH, Pagon RA, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2017
  2. Roe CR, Cederbaum SD, Roe DS, Sweetman L, et al. Isolated isobutyryl-CoA dehydrogenase deficiency: an unrecognized defect in human valine metabolism. Mol
  3. Gregersen et al. (2001) Hum Mutat 18 (3):169-189 (PMID: 11524729)
  4. Corydon et al. (2001) Pediatr Res 49(1): 18-23 (PMID: 11134486)
  5. Gallant et al. (2012) Mol Genet Metab 106(1) :55-61 (PMID: 22424739)
  6. Di Meo I, Lamperti C, Tiranti V. Ethylmalonic Encephalopathy. 2017 Sep 21. In: Adam MP, Ardinger HH, Pagon RA, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2017.
  7. Rinaldo P., Cowan TP, and Matern D. Acylcarnitine profile analysis. Genetics in Medicine. 2008;10(2):151.
  8. Multiple Acyl-CoA Dehydrogenase Deficiency; MADD. omim.org. https://www.omim.org/entry/231680?search=231680&highlight=231680. Updated July 9, 2016. Accessed November 29, 2017.