Related Experiment Video
Updated: Aug 15, 2026
10:26
Toxicological Assays for Testing Effects of an Epigenetic Drug on Development, Fecundity and Survivorship of Malaria Mosquitoes
Published on: January 16, 2015
A pesticide (dieldrin)-induced immunohemolytic anemia
H E Hamilton1, D P Morgan, A Simmons
1Department of Internal Medicine, College of Medicine, University of Iowa, Iowa City 52242.
Environmental Research
|October 1, 1978
Summary
A factory worker developed severe hemolytic anemia due to dieldrin exposure. Splenectomy led to remission, revealing dieldrin as an immunogen causing chemical immunohemolytic anemia.
Area of Science:
- Environmental toxicology
- Immunology
- Hematology
Background:
- Investigated an unusual case of severe hemolytic anemia in a factory worker.
- Anemia remitted after splenectomy, suggesting an underlying cause beyond typical hematological disorders.
Observation:
- Patient's serum and red blood cells showed immunoglobulin presence.
- Normal red blood cells agglutinated with patient's serum when coated with dieldrin.
- Patient's spleen had elevated dieldrin concentrations, linked to dietary sources.
Findings:
- Dieldrin acted as an immunogen, triggering a chemical immunohemolytic anemia.
- Immunoglobulin and complement were detected on the patient's red blood cells.
- The spleen was crucial in destroying damaged red cells and accumulating dieldrin.
Implications:
- Highlights environmental toxins as potential triggers for autoimmune-like hematological conditions.
- Suggests the need for considering environmental exposures in diagnosing unexplained anemias.
- Underscores the spleen's role in both immune-mediated red cell destruction and toxin accumulation.
