Contribution of Heinz bodies to alterations in red cell deformability

Ronald S Weinstein, Marilyn E. George, Richard H. Steingart

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Incubation of human red blood cells with 0.01 and 0.02 m monomethylhydrazine (MMH) denatures hemoglobin and precipitates it both diffusely throughout the cytoplasmic compartment and in a concentrated form as Heinz bodies. Concomitantly, there is a decrease in red cell deformability (filterability), when measured as a function of the time required for passage of red cells through Millipore filters. Acetylphenylhydrazine (APH) produces Heinz bodies that attach to the cell membrane and distort the cell membrane, and also alters red cell deformability. These alterations in deformability in APH-injured cells have been attributed to Heinz body-cell membrane interactions. Unlike APH-induced Heinz bodies, MMH-induced Heinz bodies show little affinity for the cell membrane and are free of the membrane when decreases in deformability are first detected. These results show that alterations in red cell deformability with oxidative injury may be unrelated to Heinz body-cell membrane interactions. Ultrastructural observations suggest that denatured hemoglobin diffusely distributed in the cytoplasm may polymerize into a loose network and account for the altered rheological properties of MMH-injured red cells.

Original languageEnglish (US)
Pages (from-to)545-558
Number of pages14
JournalToxicology and Applied Pharmacology
Volume32
Issue number3
DOIs
StatePublished - 1975
Externally publishedYes

Fingerprint

Heinz Bodies
Formability
Cell membranes
Monomethylhydrazine
Cells
Cell Membrane
Cell Communication
Hemoglobins
Micropore Filters
Precipitates
Cytoplasm
Blood
Erythrocytes
Membranes
Wounds and Injuries

ASJC Scopus subject areas

  • Pharmacology
  • Toxicology

Cite this

Contribution of Heinz bodies to alterations in red cell deformability. / Weinstein, Ronald S; George, Marilyn E.; Steingart, Richard H.

In: Toxicology and Applied Pharmacology, Vol. 32, No. 3, 1975, p. 545-558.

Research output: Contribution to journalArticle

Weinstein, Ronald S ; George, Marilyn E. ; Steingart, Richard H. / Contribution of Heinz bodies to alterations in red cell deformability. In: Toxicology and Applied Pharmacology. 1975 ; Vol. 32, No. 3. pp. 545-558.
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