Wyniki wyszukiwania - Biblioteka Nauki

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

Znaleziono wyników: 6

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Levels of bacterial endotoxin in the samples of settled dust collected in animal houses

100%

Pomorska D. , Larsson L. , Skorska C. , Sitkowska J. , Dutkiewicz J.

nr 1

37-41

Samples of settled dust were collected in 14 animal houses and examined for the presence of bacterial endotoxin with the Limulus (LAL) test and the gas chromatography - tandem mass spectrometry (GC-MSMS) technique, based on the detection of 3- hydroxy fatty acids (3-OH-FAs) as chemical markers of the endotoxin lipopolysaccharide. The median concentrations of the endotoxin in dust determined with LAL test in sheep sheds, poultry houses, and horse stables were 15,687.5 µg/g, 8,081.8 µg/g, and 79.3 µg/g, respectively, while those determined with the GC-MSMS technique were 868.0 µg/g, 580.0 µg/g, and 496.0 µg/g, respectively. Statistical comparison of the results yielded with LAL test and GC-MSMS technique revealed a weak correlation between both methods. Fatty acids with 14-16 carbon chains (3-OH-C₁₄ and 3-OH-C₁₆) were predominant in the settled dust of the facilities under study. In conclusion, endotoxin in the concentrations detected in this study may present a respiratory hazard to both livestock animals and farm workers. Thus, the prevention measures aiming to lower the exposure to endotoxin in livestock facilities are highly desirable.

Immunostimulative effects of repeated inhalation exposure to microvesicle-bound endotoxin of Pantoea agglomerans

100%

Dutkiewicz J. , Skorska C. , Burrell R. , Szuster-Ciesielska A. , Sitkowska J.

nr 2

289-294

Rabbits exposed repeatedly to aerosols of endotoxin-containing microvesicles (ECMV) of the outer membrane of the Pantoea agglomerans strain isolated from airborne grain dust showed a large increase in the concentration of circulating cytokines: total interferon (IFN), interleukin-1 alpha (IL-1 alpha), and tumor necrosis factor alpha (TNF alpha). The increase was significantly higher compared to animals exposed to control saline (p<0.001). Aerosol exposure to ECMV also induced the formation of specific precipitin antibodies and lymphocyte activation. The results indicate strong immunomodulative properties of ECMVs produced in nature by Pantoea agglomerans bacteria, and heavily contaminating organic dusts.

Effects of repeated inhalation exposure to microvesicle-bound endotoxin

100%

Skorska C. , Sitkowska J. , Burrell R. , Szuster-Ciesielska A. , Dutkiewicz J.

nr 1

Response of furniture factory workers to work-related airborne allergens

86%

Skorska C. , Krysinska-Traczyk E. , Milanowski J. , Cholewa G. , Sitkowska J. , Gora A. , Dutkiewicz J.

nr 1

Mouse model of hypersensitivity pneumonitis after inhalation exposure to different microbial antigens associated with organic dusts

58%

Lemieszek M. , Chilosi M. , Golec M. , Skorska C. , Huaux F. , Yakoub Y. , Pastena C. , Daniele I. , Cholewa G. , Sitkowska J. , Lisowska W. , Zwolinski J. , Milanowski J. , Mackiewicz B. , Gora A. , Dutkiewicz J.

nr 1

Respiratory disorders in two workers of customs depositories occupationally exposed to mouldy tobacco

58%

Mackiewicz B. , Skorska C. , Krysinska-Traczyk E. , Larsson L. , Szponar B. , Milanowski J. , Czekajska-Chebab E. , Sitkowska J. , Cholewa G. , Szymanska J. , Dutkiewicz J.

nr 2