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Review
. 2022 Aug 31;77(4):1325-1330.
doi: 10.22092/ARI.2022.358955.2343. eCollection 2022 Aug.

Mineral Oil for in vitro Embryo Production: What We Should Know?

Affiliations
Review

Mineral Oil for in vitro Embryo Production: What We Should Know?

M Ebrahimi et al. Arch Razi Inst. .

Abstract

Mineral oil as a barrier can minimize temperature, osmolality, and pH fluctuation of the media in the in vitro embryo production system (IVP). Regardless of these advantages, mineral oil quality is varied and may deteriorate during storage or transport conditions. So, it can affect the IVP outcome by absorbing the essentials factors or realizing the toxic components into the media. Although, some methods have already been developed to reduce these side effects, still there is a big concern about the safety and use of mineral oil in the IVP system. In this review, we provided an overview of the advantages and disadvantages of using mineral oil in the IVP system. We also reviewed available methods for its quality control and finally, we introduced some methods for reducing the side effects of mineral oil.

Keywords: Embryo production; Oocyte membrane; Toxicity; in vitro culture.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Figure 1
Figure 1
Effect of mineral oil on embryo in the micro droplet culture system Mineral oil can add some toxic substances to the in vitro culture media or absorb some lipid soluble substances from the media, such as hormones (Estradiol and Progesterone). Low volume of culture media and high contact surface with the MO can accelerate this exchange between media and MO.
Figure 2
Figure 2
Effect of toxic mineral oil on sheep oocyte membrane. A) The membrane integrity after IVM seems healthy without any detectable signs. B) Blastomer membrane disappeared and cells shape are not recognizable at 72h after in vitro fertilization (arrows shows the membrane line) ( 7 ).

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