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B.R. Griffin

Publications and source records attributed to B.R. Griffin.

16 recordsLinked to original sources

A lymphosarcoma of thymic origin in the rainbow trout, Salmo gairdneri Richardson

A rainbow trout with a malignant lymphoma of probable thymic origin showed direct spread of the tumour to the gills, metastases to the liver and head kidney, and the presence of abnormal circulating lymphocytes. The cells of the tumour possessed plasma membrane immunoglobulin detectable by immuno–fluorescence. Examination of the tumour cells by transmission electron microscopy revealed no evidence of virus associated with the cells. Infectious viruses could not be detected in the tumour tissue, and the tumour was not transmissible by injection of live tumour cells into young rainbow trout. Attempts to establish the tumour in long–term culture were unsuccessful.

Journal of Fish Diseases↗

[Book review] Fish immunology, edited by M. J. Manning and M. F. Tatner

Review of: Fish Immunology. Edited by M. J. Manning and M. F. Tatner. Academic Press, London. 1985. 374 pages. $32.50. Reviewed by B. R. Griffin, Fish Farming Experimental Station, U.S. Fish and Wildlife Service, Stuttgart, Arkansas 72160, USA.

Transactions of the American Fisheries Society↗

Membrane immunoglobulin is present on thymic and splenic lymphocytes of the trout Salmo gairdneri

Three rabbit antisera raised to trout IgM showed positive immunofluorescent reactions with lymphocytes of trout spleen and thymus. These antisera showed no detectable cross-reactivity with keyhole limpet hemocyanin, as determined by direct radioimmune precipitation and adsorption, and did not appeare to react significantly with carbohydrate moieties on trout IgM, as determined by the failure of proteolytic digests of trout IgM to inhibit in radioimmunoassay against intact trout IgM. Membrane immunoglobulin determinants were detectable on the membrane of both thymocytes and splenocytes with the lactoperoxidase-catalyzed iodination reaction. Radioimmunoassay of lysates of lymphocytes confirmed the association of immunoglobulin with trout thymocytes. By radioimmunoassay, lysates of thymic and splenic lymphocytes contained similar amounts of immunoglobulin, equivalent to approximately 8 × 10 4 molecules of IgM per cell (calculated as the monomer µ 2 L 2 ).

Journal of Immunology↗

Myxosoma cerebralis: Detection of circulating antibodies in infected rainbow trout (Salmo gairdneri)

Circulating antibody against spores of Myxosoma cerebralis has been detected for the first time in rainbow trout ( Salmo gairdneri ) affected with whirling disease. An indirect fluorescent antibody test (IFAT) was employed for detection of trout immunoglobulin. Most sera of fish from an infected experimental group were found to give a positive reaction in the IFAT, while the majority of specific-pathogen-free control sera gave no reaction. Reagent preparation as well as staining and evaluation procedures are given. These results provide additional information for understanding the host/parasite relationship and offer a potential for development of a nondestructive serological test for whirling disease.

Journal of the Fisheries Research Board of Canada↗