European Journal of Pediatrics

, Volume 148, Issue 3, pp 246–249

Report on a new patient with combined deficiencies of sulphite oxidase and xanthine dehydrogenase due to molybdenum cofactor deficiency

  • W. Endres
  • Y. S. Shin
  • R. Günther
  • H. Ibel
  • M. Duran
  • S. K. Wadman
Metabolic Diseases

DOI: 10.1007/BF00441412

Cite this article as:
Endres, W., Shin, Y.S., Günther, R. et al. Eur J Pediatr (1988) 148: 246. doi:10.1007/BF00441412

Abstract

A newborn infant exhibiting seizures and spastic tetraparesis at the age of 1 week was shown to excrete excessive quantities of sulphite, taurine, S-sulphocysteine and thiosulphate, characteristic of sulphite oxidase deficiency. In addition, increased renal excretion of xanthine and hypoxanthine combined with a low serum and urinary uric acid was consistent with xanthine dehydrogenase deficiency. Both deficiencies could be established at the enzyme level. The primary defect giving rise to the combined abnormalities is the absence of a molybdenum cofactor, a molybdenum-containing pterin being an essential component of both enzymes. The patient developed a severe neurological syndrome, brain atrophy and lens dislocation and died at the age of 22 months. Attempts at treatment, such as oral administration of ammonium molybdate, sodium sulphate, d-penicillamine, 2-mercaptoethane sulphonic acid, pyridoxine and thiamine did not influence the clinical course.

Key words

Molybdenum cofactor deficiencySulphite oxidase deficiencyXanthine dehydrogenase deficiencyTherapy

Abbreviations

MC

molybdenum cofactor

Mesna

2-mercaptoethane sulphonic acid

Sa

sulphite

SOD

sulphite oxidase deficiency

S-scys

S-sulphocysteine

Tau

taurine

TSa

thiosulphate

XDD

xanthine dehydrogenase deficiency

Copyright information

© Springer-Verlag 1988

Authors and Affiliations

  • W. Endres
    • 1
  • Y. S. Shin
    • 1
  • R. Günther
    • 1
  • H. Ibel
    • 1
  • M. Duran
    • 2
  • S. K. Wadman
    • 2
  1. 1.Universitäts-KinderklinikMünchen 2Federal Republic of Germany
  2. 2.Het Wilhelmina KinderziekenhuisUniversity Children's HospitalUtrechtThe Netherlands