[Bacterial endotoxins produced by Alcaligenes faecalis and

Pneumonol Alergol Pol · Jan 1996

[Bacterial endotoxins produced by Alcaligenes faecalis and Erwinia herbicola as potential occupational hazards for agricultural workers].

Laboratory animals (guinea pigs and rabbits) were exposed to the inhalation of aerosolized endotoxins derived from the cell mass of Alcaligenes faecalis and Erwinia herbicola, the Gram-negative bacteria commonly occurring in organic dusts. Single 1 hour-lasting exposure caused the significant increase in the number of free lung cell, mostly lymphocytes, compared to the control group exposed to saline (P < 0.001). Prolonged exposure to tested endotoxins (Fifteen 1 hour-lasting exposures every second day) caused both specific and non specific immunological changes: enhanced inhibition of leukocyte migration production of precipitins, and activation of alveolar macrophages, wes assessed by greater antibacterial activity and increased interleukin I (IL-I) production. The results indicate that the endotoxins of examined bacteria represent a potential risk of inflammatory lung reaction and respiratory disease for agricultural workers inhaling organic dusts contaminated with these organisms.

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- C Skórska, J Milanowski, J Dutkiewicz, and B Fafrowicz.
- Zakładu Aerobiologii i Alergologii, Instytutu Medycyny Wsi w Lublinie.
- Pneumonol Alergol Pol. 1996 Jan 1;64 Suppl 1:9-18.
AbstractLaboratory animals (guinea pigs and rabbits) were exposed to the inhalation of aerosolized endotoxins derived from the cell mass of Alcaligenes faecalis and Erwinia herbicola, the Gram-negative bacteria commonly occurring in organic dusts. Single 1 hour-lasting exposure caused the significant increase in the number of free lung cell, mostly lymphocytes, compared to the control group exposed to saline (P < 0.001). Prolonged exposure to tested endotoxins (Fifteen 1 hour-lasting exposures every second day) caused both specific and non specific immunological changes: enhanced inhibition of leukocyte migration production of precipitins, and activation of alveolar macrophages, wes assessed by greater antibacterial activity and increased interleukin I (IL-I) production. The results indicate that the endotoxins of examined bacteria represent a potential risk of inflammatory lung reaction and respiratory disease for agricultural workers inhaling organic dusts contaminated with these organisms.

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[Bacterial endotoxins produced by Alcaligenes faecalis and Erwinia herbicola as potential occupational hazards for agricultural workers].

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