In vitro Lymphoproliferative Responses of Trichostrongylus colubriformis High and Low Responder Guinea Pigs to Worm Antigens (SPL3, SPA) and Ovalbumin

in vitro lymphoproliferative responses of trichostrongylus colubriformis high and low responder guinea pigs to worm antigens (spl3, spa) and ovalbumin

in vitro lymphocyte responses of high responder (hr) and low responder (lr) guinea pigs from pe-ripheral blood lymphocytes (pbl) to parasite antigens soluble protein third stage larvae (spl3) and soluble protein adult stage ( spa), non-parasite antigen ovalbumin (ova) were examined. there was substantial differences between hr and lr guinea pigs in the rate of acquisition of responsiveness to t...

Regulation of Teladorsagia circumcincta and Trichostrongylus colubriformis worm populations by grazing sheep with differing resistance status.

In an experiment lasting 4 years, changes in the Teladorsagia circumcincta and Trichostrongylus colubriformis populations were compared in lambs and adult sheep with differing resistance statuses. Two flocks of 30 rams (resistant R and susceptible S) grazed separate pastures and 8 rams were slaughtered in the middle and at the end of each grazing season. Five groups of tracer lambs were added e...

Adjustment of sensitisation and challenge protocols restores functional and inflammatory responses to ovalbumin in guinea-pigs

INTRODUCTION Inhalation of antigen in atopic asthma induces early (EAR) and late asthmatic responses (LARs), inflammatory cell infiltration and airways hyperresponsiveness (AHR). Previously, we have established a protocol of sensitisation and subsequent ovalbumin (Ova) inhalation challenge in guinea-pigs which induced these 4 features (Smith & Broadley, 2007). However, the responses of guinea-p...

PURIFICATION AND CHARACTERIZATION OF PROTEIN ANTIGENS ISOLATED FROM MYCOBACTERIUM TUBERCULOSIS (H37Rv STRA IN) AND THEIR EFFECTS ON CELL-MEDIATED IMMUNE RESPONSES IN GUINEA PIGS

Mycobacterium tuberculosis (H37Rv strain) was used in this study. The bacterial cells were disintegrated by sonication. The separation and characterization of the soluble molecules were attempted by various techniques including gel filtration, ion exchange chromatographies and polyacrylamide gel electrophoresis, using SDS and 2ME. Eight protein molecules with molecular weights ranging from...

The Effect of Carvacrol on Serum Cytokines and Endothelin Levels of Ovalbumin Sensitized Guinea-Pigs