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Fig. 7 | The Journal of Basic and Applied Zoology

Fig. 7

From: Toxicological studies on commercial hair dye brand commonly used in Saudi Arabia: histological study of the liver, kidney, heart, and testis

Fig. 7

Sections from the rat testis administered with high-dose hair dye for 8 days show the following: a more shrinkage (black arrows) and deformity (white arrows) of seminiferous tubule, wide interstitial spaces (black stars), and dilatation and congestion of blood vessels (dotted arrows) (H-E, × 200). b Magnified part to show degenerative changes in basal cells. The nuclei of other germ cells are dark stained and pyknotic (black arrows) marked congestion of blood vessels (BV) with perivascular inflammatory cells (thick black arrow) and atrophy and degeneration of Leydig cells (white star) (H-E, × 400). c Some tubules showed marked degeneration and absence of most germ cells (black arrows); the rest showed no mature sperms. Leydig cells looked small and degenerated (white and black stars) (H-E, × 400)

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