Dihydrolipoamide Dehydrogenase Deficiency

The clinical phenotype of Dihydrolipoamide Dehydrogenase Deficiency (DLD) or Maple Syrup Urine Disease (MSUD) Type 3 differs considerably from that seen in classic, intermediate or intermittent MSUD and ranges from severe neonatal presentation with neurological deficits to less severe presentations in childhood that include exertional fatigue between decompensation episodes. Patients may also present with severe liver failure.

Tests Available

Forms and Documents

Test Details

AARS2, ABCB7, ACAD9, ACO2, AFG3L2, AGK, AIFM1, ALAS2, APOPT1, ATP5A1, ATP5E, ATP7B, ATPAF2, AUH, BCS1L, BOLA3, C12ORF65, C19orf12, CARS2, CLPB, COA5, COA6, COASY, COQ2, COQ4, COQ6, COQ7, COQ8A, COQ8B, COQ9, COX10, COX14, COX15, COX20, COX6A1, COX6B1, COX8A, CYC1, DARS2, DGUOK, DLAT, DLD, DNA2, DNAJC19, DNM1L, EARS2, ECHS1, ELAC2, ETFA, ETFB, ETFDH, ETHE1, FARS2, FASTKD2, FBXL4, FDX1L, FH, FLAD1, FOXRED1, GARS, GCDH, GFER, GFM1, GFM2, GLRX5, GTPBP3, GYG2, HARS2, HMGCL, HTRA2, IARS2, IBA57, ISCA2, ISCU, LAMP2, LARS, LARS2, LIAS, LIPT1, LRPPRC, LYRM4, LYRM7, MARS2, MFF, MFN2, MGME1, MICU1, MPC1, MPV17, MRPL12, MRPL3, MRPL44, MRPS16, MRPS22, MRPS7, MTFMT, MTO1, MTPAP, NARS2, NDUFA1, NDUFA10, NDUFA11, NDUFA12, NDUFA2, NDUFA4, NDUFA9, NDUFAF1, NDUFAF2, NDUFAF3, NDUFAF4, NDUFAF5, NDUFAF6, NDUFAF7, NDUFB11, NDUFB3, NDUFB9, NDUFS1, NDUFS2, NDUFS3, NDUFS4, NDUFS6, NDUFS7, NDUFS8, NDUFV1, NDUFV2, NFS1, NFU1, NR2F1, NUBPL, OPA1, OPA3, OTC, PARS2, PC, PCCA, PCCB, PDHA1, PDHB, PDHX, PDP1, PDSS1, PDSS2, PET100, PNPT1, POLG, POLG2, PRKAG2, PUS1, QARS, RARS, RARS2, RMND1, RNASEH1, RRM2B, SARS2, SCO1, SCO2, SDHA, SDHAF1, SERAC1, SFXN4, SLC19A2, SLC19A3, SLC22A5, SLC25A26, SLC25A3, SLC25A38, SLC25A4, SLC25A46, SPAST, SPG7, SUCLA2, SUCLG1, SURF1, TACO1, TARS2, TAZ, TFAM, TIMM8A, TK2, TMEM126A, TMEM126B, TMEM70, TPK1, TRIT1, TRMT10C, TRMU, TRNT1, TSFM, TTC19, TUFM, TWNK, TYMP, UQCC2, UQCC3, UQCRB, UQCRC2, UQCRQ, VARS2, WDR45, WFS1, YARS2
  • Molecular confirmation of a clinical diagnosis
  • Testing of patients suspected of having a mitochondrial disorder
  • Prenatal diagnosis for known familial mutation(s) in nuclear genes in at-risk pregnancies.
  • Next-Gen Sequencing
  • Deletion/Duplication Analysis

Ordering

573
6 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL) | Buccal Swabs

Billing

81440x1
Yes
Yes
* For price inquiries please email zebras@genedx.com

References

  1. Oliveira et al. (2005) Dev Med Child Neurol 47 (3):185-9 (PMID: 15739723)
  2. Chinnery P. Mitochondrial Disorders Overview 2000 Jun 8 [Updated 2014 Aug 14]. In: Pagon RA, Adam MP, Ardinger HH, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2018. Available from: https://www.ncbi.nlm.n
  3. Tarnopolsky et al. (2005) Med Sci Sports Exerc 37 (12):2086-93 (PMID: 16331134)
  4. van Adel et al. (2009) Journal Of Clinical Neuromuscular Disease 10 (3):97-121 (PMID: 19258857)
  5. Zhu et al. (2009) Acta Biochim. Biophys. Sin. (Shanghai) 41 (3):179-87 (PMID: 19280056)
  6. Koenig et al. (2008) Pediatr. Neurol. 38 (5):305-13 (PMID: 18410845)
  7. Zeviani et al. (2004) Brain 127 (Pt 10):2153-72 (PMID: 15358637)
  8. Taylor et al. (2014) JAMA 312 (1):68-77 (PMID: 25058219)

Forms and Documents

Test Details

DLD
  • Confirmation of biochemical diagnosis
  • Carrier testing
  • Capillary Sequencing

Ordering

490
4-5 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL) | Buccal Swabs

Billing

81406x1
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. Nellis, M and Danner, D (2001) Am J Hum Genet 68:232-237
  2. Quental et al., (2008) Mol Genet Metab 94:148-156
  3. Flaschker et al., (2007) J Inherit Metab Dis 30:903-909
  4. Nellis et al., (2003) Mol Genet Metab 80:189-195
  5. Rodriguez-Pombo et al., (2006) Hum Mutat 27:715
  6. Henneke et al., (2003) Hum Mutat 22:417

Forms and Documents

Test Details

AARS2, ABCB7, ACAD9, ACO2, AFG3L2, AGK, AIFM1, ALAS2, APOPT1, ATP5A1, ATP5E, ATP7B, ATPAF2, AUH, BCS1L, BOLA3, C12ORF65, C19orf12, CARS2, CLPB, COA5, COA6, COASY, COQ2, COQ4, COQ6, COQ7, COQ8A, COQ8B, COQ9, COX10, COX14, COX15, COX20, COX6A1, COX6B1, COX8A, CYC1, DARS2, DGUOK, DLAT, DLD, DNA2, DNAJC19, DNM1L, EARS2, ECHS1, ELAC2, ETFA, ETFB, ETFDH, ETHE1, FARS2, FASTKD2, FBXL4, FDX1L, FH, FLAD1, FOXRED1, GARS, GCDH, GFER, GFM1, GFM2, GLRX5, GTPBP3, GYG2, HARS2, HMGCL, HTRA2, IARS2, IBA57, ISCA2, ISCU, LAMP2, LARS, LARS2, LIAS, LIPT1, LRPPRC, LYRM4, LYRM7, MARS2, MFF, MFN2, MGME1, MICU1, MPC1, MPV17, MRPL12, MRPL3, MRPL44, MRPS16, MRPS22, MRPS7, MTFMT, MTO1, MTPAP, NARS2, NDUFA1, NDUFA10, NDUFA11, NDUFA12, NDUFA2, NDUFA4, NDUFA9, NDUFAF1, NDUFAF2, NDUFAF3, NDUFAF4, NDUFAF5, NDUFAF6, NDUFAF7, NDUFB11, NDUFB3, NDUFB9, NDUFS1, NDUFS2, NDUFS3, NDUFS4, NDUFS6, NDUFS7, NDUFS8, NDUFV1, NDUFV2, NFS1, NFU1, NR2F1, NUBPL, OPA1, OPA3, OTC, PARS2, PC, PCCA, PCCB, PDHA1, PDHB, PDHX, PDP1, PDSS1, PDSS2, PET100, PNPT1, POLG, POLG2, PRKAG2, PUS1, QARS, RARS, RARS2, RMND1, RNASEH1, RRM2B, SARS2, SCO1, SCO2, SDHA, SDHAF1, SERAC1, SFXN4, SLC19A2, SLC19A3, SLC22A5, SLC25A26, SLC25A3, SLC25A38, SLC25A4, SLC25A46, SPAST, SPG7, SUCLA2, SUCLG1, SURF1, TACO1, TARS2, TAZ, TFAM, TIMM8A, TK2, TMEM126A, TMEM126B, TMEM70, TPK1, TRIT1, TRMT10C, TRMU, TRNT1, TSFM, TTC19, TUFM, TWNK, TYMP, UQCC2, UQCC3, UQCRB, UQCRC2, UQCRQ, VARS2, WDR45, WFS1, YARS2
  • Molecular confirmation of a clinical diagnosis
  • Testing of patients suspected of having a mitochondrial disorder
  • Prenatal diagnosis for known familial mutation(s) in nuclear genes in at-risk pregnancies.
  • Next-Gen Sequencing
  • Deletion/Duplication Analysis

Ordering

615
6 weeks
2-5 mL Blood - Lavender Top Tube
Oral Rinse (30-40 mL) | Buccal Swabs

Billing

81460x1, 81465x1, 81440x1
Yes
Yes
* For price inquiries please email zebras@genedx.com

References

  1. Oliveira et al. (2005) Dev Med Child Neurol 47 (3):185-9 (PMID: 15739723)
  2. Chinnery P. Mitochondrial Disorders Overview 2000 Jun 8 [Updated 2014 Aug 14]. In: Pagon RA, Adam MP, Ardinger HH, et al., editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2018. Available from: https://www.ncbi.nlm.n
  3. Tarnopolsky et al. (2005) Med Sci Sports Exerc 37 (12):2086-93 (PMID: 16331134)
  4. van Adel et al. (2009) Journal Of Clinical Neuromuscular Disease 10 (3):97-121 (PMID: 19258857)
  5. Zhu et al. (2009) Acta Biochim. Biophys. Sin. (Shanghai) 41 (3):179-87 (PMID: 19280056)
  6. Longo et al. (2003) Neurol Clin 21 (4):817-31 (PMID: 14743651)
  7. Koenig et al. (2008) Pediatr. Neurol. 38 (5):305-13 (PMID: 18410845)
  8. Zeviani et al. (2004) Brain 127 (Pt 10):2153-72 (PMID: 15358637)
  9. Taylor et al. (2014) JAMA 312 (1):68-77 (PMID: 25058219)