Round cells. The spermatids seem with round nuclei and dark clumps of heterochromatin and cytoplasm wealthy in mitochondria, with lipid droplets amongst the cells (Figure 6a,b). Sertoli cells seem with Dihydroactinidiolide MedChemExpress regular nuclei and also the basement membranes enclosed by myoid cells (Figure 6a). The mature spermatozoa have been observed with acrosomes in the head, and condensed nuclei, neck, and midpieces with mitochondrial sheaths (Figure 6b).Figure 6. (a,b): Electron micrograph of a section of rat’s testis within the handle group. (a) showing standard seminiferous tubule with typical spermatogenic epithelium (arrow), spermatogonia (Sg), major spermatocytes (Sc), and spermatids (Sd). Sertoli cell (Se) appeared using the nucleus (N) as well as the basement membrane enclosing myoid cell (my) (000). (b): displaying normal sperms. The Boc-Cystamine manufacturer sperms have flagellum (head arrow) and an elongated condensed nucleus (N) and an acrosomal cap (arrow). The spermatids appeared (Sd) using the nucleus and cytoplasm rich in mitochondria (M), and lipid droplets (L) involving the cells (500).Electron micrographs of testis of rats treated with EVOO for 15 days showed the regular seminiferous tubules with regular spermatids and typical nuclei. Sperm appeared with elongated condensed nuclei and acrosomal caps at the fronts in the heads. Vacuoles were observed inside the cells (Figure 7a). The sperm had regular flagella-elongated condensed nuclei and acrosomal caps. Most sections of your sperm flagella had standard structures, comprising midpieces, principal pieces, and finish pieces, using the standard arrangements of flagellar axonemes (Figure 7b).Biology 2021, ten,7 ofFigure 7. (a,b): Electron micrograph of a section of rat’s testis, treated with EVOO for 15 days. (a) showing typical seminiferous tubule with standard spermatids (Sd) plus a typical nucleus. Sperm appeared with an elongated condensed nucleus (N) and an acrosomal cap (arrow) at the leading point with the head. Notice vacuoles (v) in cells (000). (b) displaying that most of the unique parts with the sperm flagellum have normal structure, midpiece (Mp), principal piece (Pp), and finish piece (Ep), together with the common arrangement of flagellar axoneme. Sperms have regular flagellum and elongated condensed nucleus (N) and an acrosomal cap (arrow) (500).Nonetheless, the testis of rats treated with paracetamol for 15 days showed seminiferous tubules with various adjustments, primary spermatocytes with pyknotic nuclei, and ruptured cell membranes. Some sperm had missing flagella with elongated and condensed abnormal nuclei. Additionally, wide separations have been observed between neighboring cells and vacuoles for most cells (Figure 8a). A number of adjustments appeared within the seminiferous tubules. Sertoli cells appeared, with abnormal chromatin in their nuclei and basement membranes, enclosing myoid cells. Most of the spermatogonia and primary spermatocytes showed condensed chromatin in their nuclei and also the nuclei in some principal spermatocytes were necrotic (Figure 8b).Figure eight. (a,b): Electron micrograph of a section of rat’s testis treated with paracetamol for 15 days. (a) showing seminiferous tubule with various alterations, main spermatocytes (Sc) with pyknotic nucleus (N), as well as the rupture from the cell membrane (arrow). Some sperm without the need of flagellum (head arrow) and elongated condensed abnormal nucleus (N). Notice the wide separation (s) amongst neighboring cells and vacuoles (v) in most cells (500). (b) displaying seminiferous tubules with various alterations, Sertoli cell (Se) appeared with abnormal chr.