Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/64830
Type: Artigo de periódico
Title: ENGULFMENT AND KILLING CAPABILITIES OF NEUTROPHILS AND PHAGOCYTIC SPLENIC FUNCTION IN PERSONS OCCUPATIONALLY EXPOSED TO LEAD
Author: QUEIROZ, MLS
COSTA, FF
BINCOLETTO, C
PERLINGEIRO, RCR
DANTAS, DCM
CARDOSO, MP
ALMEIDA, M
Abstract: Phagocytosis and intracellular killing of Candida albicans and Candida pseudotropicalis by neutrophils as well as phagocytic splenic function from lead-exposed workers were studied. Two species of Candida were used since in individuals with myeloperoxidase deficiency neutrophils are unable to kill C. albicans, whereas C. pseudotropicalis can be effectively lysed. Phagocytosis with both antigens and phagocytic splenic function were normal in all the workers studied. However, lytic activity towards C. albicans, but not C. pseudotropicalis was impaired. This defect was observed in lead-exposed workers with blood lead levels and urinary delta-aminolevulinic acid (ALA-U) concentrations in the ''safe'' (below 60 ug/dl and 6 mg/l, respectively) and toxic ranges. An impaired ability to kill C. albicans suggests that lead exposure may lead to a myeloperoxidase deficiency. With the exception of blood lead levels and ALA-U concentrations, there was no correlation between any of the other parameters examined.
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Rights: fechado
Identifier DOI: 10.1016/0192-0561(94)90018-3
Date Issue: 1994
Appears in Collections:Unicamp - Artigos e Outros Documentos

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