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Related Experiment Videos

LD-IgG, IgA, IgM complex in a postburn patient.

Z Liu1, W Wang, M Wei

  • 1Department of Laboratory Medicine, Southwestern Hospital, Third Military Medical University, Chongqing, People's Republic of China. zjliuzj@public.cta.cq.cn

Clinica Chimica Acta; International Journal of Clinical Chemistry
|September 11, 1999
PubMed
Summary

A child with severe burns presented with unusually high lactate dehydrogenase (LD) activity. This was due to a rare LD-immunoglobulin complex, whose clinical significance in burn patients is unknown.

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Area of Science:

  • Biochemistry
  • Clinical Chemistry
  • Immunology

Background:

  • Lactate dehydrogenase (LD) is a key enzyme in cellular metabolism.
  • Elevated LD levels can indicate tissue damage or disease.
  • Immunoglobulin complexes can form in various clinical conditions.

Observation:

  • A 4-year-old boy with extensive burns (25% body surface area) exhibited markedly elevated LD activity (1743 U/l).
  • LD isoenzyme analysis revealed an unusual band migrating cathodically to LD-5.
  • Counter immunoelectrophoresis confirmed this band as a complex of LD with immunoglobulins (IgG, IgA, IgM).

Findings:

  • The presence of an LD-immunoglobulin complex is a rare finding, particularly in burn patients.
  • This specific complex was identified as LD-IgG, LD-IgA, and LD-IgM.

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Implications:

  • The clinical significance of LD-immunoglobulin complexes in burn patients is currently unclarified.
  • Further research is needed to understand the role and impact of these complexes in burn injury.
  • This case highlights a rare biochemical finding in severe burn cases that warrants further investigation.