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  Indian J Med Microbiol
 

Figure 3: Ultrathin testicular sections of the exposed groups analyzed by transmission electron microscopy. Sertoli cell supported by a basal lamina. Numerous lipid droplets, endoplasmic reticulum swelling, and electron-dense materials are observed in the cytoplasm of the Sertoli cells (a and b). Damage to the structure of the blood–testis barrier can be observed in T3 (b), empty spaces between Sertoli cells and spermatids were clearly visible after propolis exposure (c and d). Residual bodies in the cytoplasm of Sertoli cells (d). Spermatozoa with accumulated cytoplasm (d) and head and tail abnormalities (d). Barr = 10 μm (a and d), 5 μm (b, c, and e), 2 μm (f). SC: Sertoli cell; bl: Basal lamina; ld: Lipid droplets; ER: Endoplasmic reticulum swelling; dm: Dense materials; BTB: Blood–testis barrier; rb: Residual bodies; ac: Accumulated cytoplasm

Figure 3: Ultrathin testicular sections of the exposed groups analyzed by transmission electron microscopy. Sertoli cell supported by a basal lamina. Numerous lipid droplets, endoplasmic reticulum swelling, and electron-dense materials are observed in the cytoplasm of the Sertoli cells (a and b). Damage to the structure of the blood–testis barrier can be observed in T3 (b), empty spaces between Sertoli cells and spermatids were clearly visible after propolis exposure (c and d). Residual bodies in the cytoplasm of Sertoli cells (d). Spermatozoa with accumulated cytoplasm (d) and head and tail abnormalities (d). Barr = 10 μm (a and d), 5 μm (b, c, and e), 2 μm (f). SC: Sertoli cell; bl: Basal lamina; ld: Lipid droplets; ER: Endoplasmic reticulum swelling; dm: Dense materials; BTB: Blood–testis barrier; rb: Residual bodies; ac: Accumulated cytoplasm