Introduction: Polycystic ovary syndrome (PCOS) is the communal endocrine illness in women and the most common cause of infertility due to lack of ovulation. The exact cause of PCOS is still unknown. Affected women may have difficulty getting pregnant due to ovulation problems. Various methods have not been effective in the treatment of PCOS due to the positive role of photobiomodulation therapy (PBMT) and extracellular vesicles (ECV) obtained from cord blood plasma in the treatment of various diseases. The aim of this study was to study the role of ECV and PBMT in maturation and improvement of infertility in women with PCOS. Methods: In this research, a number of oocytes were obtained after ovarian stimulation from women who had been referred to the hospital for infertility treatment after obtaining personal consent, and they were divided into three groups: control, ECV and PBMT. Subsequently, in vitro maturation (IVM) was assessed, then some oocytes were cultured with a routine medium and others were treated with ECV and PBMT. Real-time PCR was used to evaluate BCL-2, BAX, caspase-3, and autophagy gene (ATG5, LC3, Beclin 1). Oocyte glutathione (GSH), oxidised gluathione (GSSG), and reactive oxygen species (ROS) were measured. Results: The metaphase II (MII) oocyte ratio formation significantly increased in the ECV and PBMT groups (P<0.05). The expression of the BCL-2 gene was significantly up-regulated in the ECV and PBMT groups, but the expression of BAX and caspase-3 significantly decreased (P<0.05). The expression of the ATG5, LC3, BECLIN-2 genes significantly decreased in the ECV and PBMT groups (P<0.05). ROS, GSSG decreased in ECV and PBMT groups but GSH increased (P<0.05). Conclusion: The use of ECV and PBMT can increase the rate of fertilization and maturation of an oocyte and cause a decrease in apoptosis, autophagy, and ROS in a PCOS oocyte.
Introduction: Cerebral ischemic stroke is the third cause of death worldwide and is one of the main causes of long-term disabilities. Histone deacetylase inhibitors have effects on amelioration of brain disorders. The purpose of this study was to investigate the effects of sodium butyrate (SB) as a histone deacetylase inhibitor on short-term working memory and serum level of B-cell lymphoma 2 (Bcl2) protein in a rat cerebral hypoxic ischemia (HI) model. Materials and Methods: The animals were divided into 5 groups; control, HI+Saline, HI+SB 0.1, HI+SB 0.3, and HI+SB 0.6. Ischemia was induced by left carotid artery occlusion and then rats were placed in the hypoxic chamber containing 8% oxygen for 5 minute. SB was injected at doses of 0.1, 0.3 and 0.6 (mg/kg/day) intra-peritonealy for 14 consecutive days in three treatment groups. Short-term working memory in these groups was analyzed by Y-maze test. After performing the test, serum value of Bcl2 protein were measured by ELISA. Results: The percent of behavior alteration was higher in treatment groups than HI+Saline group in a dose dependent manner. In addition, SB administration reduced serum levels of Bcl2 in treatment groups. Conclusion: SB may cause amelioration of short-term memory and reduction of Bcl2 level, as an apoptosis marker, in cerebral hypoxic ischemia.
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