Objective In this study, we investigated the distribution of Peroxiredoxin II mRNA in follicles at all stages in mouse ovaries and mouse secondary oocytes(MII eggs) basing on our previous researches, to provide the morphological basis for exploring the effect of Peroxiredoxin II on oogenesis and oocyte maturation in the mouse. Methods To observe the distribution of Peroxiredoxin II mRNA in follicles at all stages in ovaries and the localization of Peroxiredoxin II mRNA in Germinal-Vesicle intact oocytes(GV oocytes) and MII eggs by in situ Hybridization. Results In situ hybridization of ovary section revealed that the signals for Peroxiredoxin II mRNA were undetectable in oocytes of primordial follicles, and moderate signals for Peroxiredoxin II mRNA were observed in oocytes of primary follicles. Moreover, strong signals for Peroxiredoxin II mRNA were evident in antral follicles. The signals for Peroxiredoxin II mRNA also existed in GV oocytes and MII eggs in vitro. The hybrid signals were stronger in GV oocytes than in MII eggs. In addition, the weak but consistent signals for Peroxiredoxin II mRNA were detected in follicular cells from primordial follicles to large antral follicles. Peroxiredoxin II mRNA was located in cytoplasm of oocytes and follicular cells, but not in nuclei.Conclusion These results suggested that Peroxiredoxin II might be involved in the regulation of oogenesis and oocyte matruation in the mouse.;

Objective To observe the localization and distribution of follicle stimulating hormone receptor(FSHR) in the rat submandibular gland and stomach. Methods Immunohistochemical SABC method was used in the experiment. Results The serous glandular cells,granular convoluted epithelial cells and all other duct epithelial cells in the submandibular gland and the parietal cells of gastric gland showed FSHR positive immunoreactivity.The positive substance was distributed in the cytoplasm with negative nuclei.Conclusion The function of rat submandibular gland and gastric gland might be regulated by follicle stimulating hormone(FSH) through FSHR.