DOI: 10.1177/22.12.1077 ISSN:

PERIODATE-LYSINE-PARAFORMALDEHYDE FIXATIVE A NEW FIXATIVE FOR IMMUNOELECTRON MICROSCOPY

IAN W. MCLEAN, PAUL K. NAKANE
  • Histology
  • Anatomy
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A new fixative which primarily stabilizes carbohydrate moieties was developed for immunoelectron microscopy. It contains periodate, lysine and paraformaldehyde. Theoretically, the carbohydrates are oxidized by periodate and cross-linked by lysine. The fixative can preserve antigenicity as well as paraformaldehyde and ultrastructure as well as glutaraldehyde. Using this fixative and the peroxidase-labeled antibody technique, basement membrane antigen was localized within the cisternae of endoplasmic reticulum of parietal yolk sac cells and in extracellular basement membranes with adequate tissue preservation, a task which has not been successfully accomplished by conventional fixatives.

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