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Self-reactive B cells that are anergized in bone marrow migrate to peripheral lymphoid organs.
On day 3rd, 5th and 9th of post infection, from each group five birds were slaughtered, gross and histopathological lesions on lymphoid organs bursa, thymus and spleen in different groups were observed and tissue samples were preserved in 10% formalin for histopathological study (Subtain et al.
Organ body weight index (OBWI) = lymphoid organ weight (gms) / body weight (gms)
DISCUSSION: The thymus which is a central lymphoid organ is located mainly in anterior superior mediastinum in front of the heart and behind the sternum sometimes it extends to inferior mediastinum.
The results of the relative weight of lymphoid organs, macrophage activity and antibody titer were analyzed using an analysis of variance and polynomial regression with the software systems analysis and genetic statistics (SAEG) (SSGA; Sistemas de Analises Estatisticas e Geneticas, SAEG) (UFV, 1997).
Homing to any lymphoid organs remains irrelevant unless lymphocytes encounter antigens in the appropriate context.
In the results of exposure to extreme heat stress along with the continuous lighting, it was observed that serum IgG, lymphoid organs, bursa of Fabricius, thymus and
Lymphoid cells were separated from blood over Ficoll-paque[R] (phamacia Fine Chemicals, Upsalla, Sweden) and the lymphoid organs by teasing in sterile-phosphate buffered saline (PBS) supplemented with 5% by volume of fetal calf serum (FCS) using a sterile pair of forceps.
The thymus and bone marrow are categorized as primary lymphoid organs because they function as differentiation and maturation sites.
This elevation in circulating NK cell levels is the result of a redistribution from peripheral lymphoid organs [6, 7].
Age-related changes in the avian primary lymphoid organs (thymus and bursa of Fabricius).