Endotoxin induces eosinophil accumalation in the rat pleural cavity
Braz. j. med. biol. res
;
24(9): 957-60, Sept. 1991. tab
Artículo
en Inglés
| LILACS
| ID: lil-102107
ABSTRACT
Changes in eosinophil counts after intrathoracic (it) injection of endotoxin (LPS) were investigated in Wistar rats (150 - 180 g). Increasing doses of endotoxin (62.5 - 500 ng/cavity) induced a dose-dependent increase in the number of eosinophils recovered from the rat pleural cavity 24 h later. The eosinophilia was apparent within 24 h, peaked within 48 h (from 0.76 ñ 0.12 to 3.68 ñ 0.51 eosinophils x 10**6/cavity, P < 0.001) and returned to basal levels 120h after the it inection of endotoxin (250 ng/cavity). Endotoxin (3 ng - 4 µg/ml) failed to attract eosinophilis in vitro under conditions in which PAF-acether induced a dose-related response. These findings indicate that endotoxin-induced eosinophil migration in vivo is mediated by a secondary mechanism
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Índice:
LILACS (Américas)
Asunto principal:
Pleuresia
/
Endotoxinas
/
Eosinófilos
Límite:
Animales
Idioma:
Inglés
Revista:
Braz. j. med. biol. res
Asunto de la revista:
Biologia
/
Medicina
Año:
1991
Tipo del documento:
Artículo
/
Congreso y conferencia
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