Effect of Moringa peregrina seeds on spleen histology compared to control group. A-D, TS in spleen tissue showing normal tissue architecture, white pulp (WP, double yellow arrows); red pulp (RP, red arrow); zones of white pulp are normally represented, germinal central (GC), arteriole (A, arrow head), follicle zone (FZ) and marginal zone (MZ). No abnormalities in these tissues were observed. A, control group; B, group administered 500 mg/kg BW; C, group administered 1000 mg/kg BW and D, group administered 200 mg/kg BW. 100X. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)