Figure 6: Effects of Glyphaea brevis twig (GBT) methanolic extract on nucleus structure of TM4 Sertoli cells. Nuclei of cells were stained with 4,6-diamidino-2-phenylindole. Arrowhead points to nucleus of TM4 Sertoli cells. A: the control (untreated cells), B: 1.0 μg/mL GBT, C: 10.0 μg/mL GBT, D: 100.0 μg/mL GBT, E: 1 000.0 μg/mL GBT. Scale bar: 5 μm, Magnification: 100x.