THE REACTION OF THE BURSA AND THYMUS EOSINOPHILS IN THE HERRING GULL AFTER THE EXPERIMENTAL INFECTION WITH GULL-TAPEWORM
- Authors: Fomina AS1, Pronina SV1, Fomina AS1, Pronina SV1
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Affiliations:
- Issue: Vol 138, No 5 (2010)
- Pages: 36-39
- Section: Articles
- URL: https://j-morphology.com/1026-3543/article/view/399384
- DOI: https://doi.org/10.17816/morph.399384
- ID: 399384
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Abstract
Using the methods of light microscopy, eosinophil topography, quantitative and qualitative changes (degranulation level of and a cationic protein content) were studied in the thymus and bursa of 36 herring gull nestlings Larus argentatus mongolicus (Suskin, 1925) 2 weeks after experimental infestation with gull-tapeworm Diphyllobothrium dendriticum (Nitsch, 1824). Eosinophils in the thymus were located in trabecules, mainly close to the blood vessels, thymic (Hassall's) corpuscles and also directly inside them, while in the bursa they were found within the internodular space. As compared with the control bird counts, relative eosinophil count in the birds with an average invasion intensity was increased 3.8 times in the thymus and 2.5 times in the bursa. In birds with high invasion intensity, these counts were increased 4 times in the thymus and 1.2 times in the bursa.
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References
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