Histology of Brucella bone marrow foci in mice.

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Published in Thyroid. January 2014, 24(1): DOI: /thy

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Histology of Brucella bone marrow foci in mice. Histology of Brucella bone marrow foci in mice. Immunohistochemical detection of Brucella foci in bone marrow using modified avidin, biotinylated enzyme complex (ABC) method (see legend for Fig. 3 and Material and Methods section). In skeletal tissues at 3 weeks post-infection, Brucella was located in the subchondral space of vertebrae bone marrow (A,C,E,F) and bones (B). Despite the presence of bacteria, no skeletal pathology was found in mice at 3 weeks post-infection. Substitution of primary antibodies with normal goat serum and then ABC detection produced no signal (D). In bone marrow, IHC-Brucella staining was represented by loose groups of positive cells in the subchondral area, the distribution of which was considerably different from the pan-marrow dispersion of IBA-1-positive macrophage marker (C). Slides were counterstained with hematoxylin. AF, annulus fibrosa; GP, growth plate; NP, nucleus pulosus; T, trabecula. Scale bars: 200 μm (A–C) and 20 μm (D–F). Diogo M. Magnani et al. Dis. Model. Mech. 2013;6:811-818 © 2013. Published by The Company of Biologists Ltd