Effects of β-mercaptoethanol on in vitro maturation and glutathione level of buffalo oocytes
نویسندگان
چکیده
AIM The present study was carried out to evaluate the effect of supplementation of β-mercaptoethanol (β-ME) on in vitro maturation rate and glutathione (GSH) level of buffalo oocytes. MATERIALS AND METHODS Oocytes were recovered from buffalo's ovaries collected from government approved slaughter house (near Kamela darwaza, Surat) of Surat Municipal Corporation. The obtained oocytes were in vitro matured in maturation media supplemented with 0 μM (117 oocytes), 100 μM (46 oocytes) and 200 μM (42 oocytes) concentration of β-ME. After 24 h of incubation, maturation rate of oocytes and intra-cellular GSH level were determined. RESULTS The results showed that the presence of β-ME did not influence (p>0.05) the oocyte maturation rate. However, GSH level increased significantly (p<0.05) in matured oocytes when supplemented with 100 μM and 200 μM β-ME (6.19±0.10 and 6.37±0.20 pmol/oocyte) as compared to control media (4.68±0.26 pmol/oocyte). CONCLUSION It was concluded that β-ME may have a potential to increase the meiotic maturation of in vitro cultured oocytes and protect it from oxidative damage.
منابع مشابه
Presence of Antioxidant in in vitro Maturation Medium and its Effects on Glutathione Level, Spindle Area and Rate of in vitro Fertilization
Background: Effect of different doses of cysteamine on rate of in vitro maturation (IVM), in vitro fertilization (IVF) and glutathione (GSH) level was studied. Metaphase II (MII) spindle area was analyzed for quantification of shape and size of oocytes. Methods: Female mice were primed with 5 IU of pregnant mare’s stimulating gonadotrophin. Germinal vesicle (GV) oocytes were retrieved 48 hrs la...
متن کاملEffect of Β-Mercaptoethanolon Resumption of Meiosis, in Vitro Maturation and Development of Immature Mouse Oocyte Treated With Dehp (Di-(2-Ethylhexy) Phathalae)
Purpose: The aim of this study was evaluated the effect of β -mercaptoethanol on resumption of meiosis, In vivo maturation of immature mouse oocytes treated with DEHP and embryo development. Materials and Methods: NMRI mouse strain (4-6 weeks) were treated daily with 50,µI DEHP Group 1: 121 immature oocytes were matured in MEM-α medium contain FCS 5%, hCG 7.5 IU/ml, rFsH 100mIU/ml, Group 2: 12...
متن کاملP-34: Effect of Including Growth Factors andAntioxidants in Maturation Medium Used forIn vitro Culture of Buffalo Oocytes RecoveredIn vivo
Background: This study examined the effect of including one of two growth factors (100 ng/ml IGF-1 or 20 ng/ ml EGF) in combination with one of two antioxidants (50 μM cysteamine or 50 μM beta-mercaptoethanol) in invitro maturation of buffalo oocytes, followed by fertilization and subsequent development of embryos. Materials and Methods: The oocytes were recovered by in vivo ovum pick-up techni...
متن کاملEffects of cysteamine during in vitro maturation on viability and meiotic competence of vitrified buffalo oocytes
The aims of the present study were to assess the effects of cysteamine as an anti-oxidant on the rate of in vitro maturation (IVM) of buffalo oocytes (experiment 1), and their viability and nuclear status following vitrification (experiment 2). Immature oocytes with compact cumulus cells obtained from the ovaries of slaughtered animals were harvested and then cultured in the maturation medium w...
متن کاملEffects of Crocin Supplementation during In Vitro Maturation of Mouse Oocytes on Glutathione Synthesis and Cytoplasmic Maturation
Objective Crocin is an active ingredient of saffron (Crocus sativus L.) and its antioxidant properties have been previously investigated. This carotenoid scavenges free radicals and stimulates glutathione (GSH) synthesis; consequently, it may protect cells against oxidative stress. The aim of this research is to protect oocytes from oxidative stress by the addition of a natural source antioxida...
متن کامل