6533b82ffe1ef96bd1294824

RESEARCH PRODUCT

Increased acidophilia of eosinophil granules after EDTA treatment

C. Gomez-perrettaA. TatoJ. M. FerrerR. Armas-portelaJuan C. Stockert

subject

SwineEdta treatmentBiologyCytoplasmic GranulesAzure Stainschemistry.chemical_compoundPhenothiazinesHorse bloodSodium citratemedicineAnimalsHumansChelationHorsesEdetic AcidGranule (cell biology)Cell BiologyHydrogen-Ion ConcentrationEosinophilStainingEosinophilsmedicine.anatomical_structureBiochemistrychemistryCytophotometryAnatomyEosinophil leucocyte

description

The acidophilic reaction of eosinophil leucocyte granules from human, pig and horse blood smears was investigated by using May-Grünwald-Giemsa staining after previous treatment with EDTA and sodium citrate solutions. The same peak at 530 nm, but absorption values considerably higher than those of controls, were found in eosinophil granules after application of chelating agents, indicating that removal of metal cations could unmask basic groups in these structures.

https://doi.org/10.1007/bf01676191