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Effect of Vitrification Technique and Different Biochemical Materials on In Vitro Maturation Outcomes | ||
| Iraqi Journal of Embryos and Infertility Researches | ||
| Article 1, Volume 5, Issue 1, 2015, Pages 46-53 | ||
| Authors | ||
| Baqir M-R Fakhrildin; ; Anam R. Al-Salihi; Hayder Abdullah K. Al-Sarray | ||
| Abstract | ||
| Background: In vitro maturation (IVM) is a culture technology that enables the immature oocytes to reach metaphase II (MII). Vitrification of immature oocytes followed by in vitro maturation can offer advantages, such as to avoid the use of large doses gonadotropins and also be an alternative approach to the use of endocrine stimulation to obtain pre-ovulatory oocytes in all cycles. Objective: The objective of the study is to determine the effect of vitrification technique and several biochemical materials on outcomes of in vitro maturation. Materials and Methods: Normal and viable immature oocytes divided into two major groups including: control group and vitrification technique group. Post-thawing, each major group subdivided into four in vitro maturation (IVM) groups using SMART medium with special additives involving: (G1) group: contained gonadotropins (Gn) only, (G2) group: supplemented with Gn and sucrose (4%), (G3) group: consisted of Gn, sucrose (4%) and follicular fluid (FF) (5%), and (G4) group: contained Gn, sucrose (4%) and FF (10%).Then, assessed the results of in vitro maturation. Results: The results of in vitro maturation for control group shows non significant differences (P>0.05) among all groups. While, a significant increase (P<0.05) in percentage of IVM was achieved when compared G3 and G4 groups with G1 and G2 groups in vitrification technique. Therefore, comparison the results of IVM between control group vitrification technique group appeared a significant difference (P<0.05) in G1 groups and also between G2 groups. However, non significant difference (P>0.05) was appeared between G3 groups and also between G4 groups when comparing between control group and vitrification technique group. Conclusions: Vitrification of immature oocytes were appeared as a promise technique for preservation of oocytes. As well as, the addition of follicular fluid (FF) to maturation medium produced the best results for in vitro maturation (IVM). | ||
| Keywords | ||
| Vitrification; in vitro maturation; follicular fluid; sucrose; gonadotropin | ||
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