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Figure 4

From: The effect of dietary supplementation with Nigella sativa (black seeds) mediates immunological function in male Wistar rats

Figure 4

Photomicrograph of popliteal lymph nodes. (a & b) The popliteal lymph nodes from a control rat show severe degeneration with a mild necrotic area (N) and a slight increase in the number of lymphocytes (arrow). (c & d) The popliteal lymph nodes from a rat belonging to the Sa30 group showed lymphoid follicles (f) with germinal centers and a slight increase in the number of lymphocytes (arrow). (e & f) The popliteal lymph nodes of a rat belonging to the Sa50 group showed parafollicular hyperplasia (f) and a slight increase in the number of lymphocytes (arrow) (H&E stain, ×5 and ×10 magnification).

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