Journal of Embryo Transfer (한국수정란이식학회지)

The Korean Society of Embryo Transfer (한국수정란이식학회)
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Effect of the Addition of Polyvinylpyrrolidone on In Vitro Development and Cell Number of Porcine Embryo after In Vitro Fertilizatin

Polyvinylpyrrolidone 첨가가 돼지 체외 수정란의 발달과 세포수에 미치는 영향

  • Park Y.S. (Kyongbuk Livestock Research Institute) ;
  • Kim J.Y. (Infertility Medical Center of CHA General Hospital) ;
  • Park H.D. (Department of Biotechnology, Daegu University)
  • 박용수 (경상북도축산기술연구소) ;
  • 김재영 (차병원 여성의학연구소 불임의학연구소) ;
  • 박흠대 (대구대학교 공과대학 생명공학과)
  • Published : 2006.06.01
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Abstract

In this study, we examined the effects of molecular weight, concentrations and treat the duration of polyvinylpyrrolidone (PVP) in vitro maturation (IVM) medium (Experiment 1), and the effect of PVP in IVM, in vitro fertilization (IVF) and in vitro culture (IVC) medium on the development and cell number of porcine embryos (Experiment 2). The base mediums were NCSU 23 solution for IVM, mTBM solution for IVF and PZM3 solution for IVC. In experiment 1, the development rates to 2 cell and blastocyst stage were not differ from the different molecular weight (MW), concentration and duration of PVP in IVM medium. However, the hatching rate of blastocyst was significantly higher in the group of MW 40,000, 0.5% and $0{\sim}44hr$ than in the other groups (p<0.05). In experiment 2, the results of IVM, IVF and IVC medium with (W) or without (W/O) 0.5% MW 40,000 PVP are follows. The development rate to 2 cell stage was highest in the group of W-W/O-W (p<0.05). The development rate to blastocyst and hatching rate was higher in the group of W-W/O-W and W-W/O-W/O than that of other treatments (p<0.05).

본 연구는 고품질의 돼지 체외 수정란을 생산하기 위하여 체외 성숙 배지에 첨가하는 polyvinylpyrrolidone(PVP)의 분자량, 첨가 농도 및 시간(실험 1)과 체외 성숙 수정 배양 단계에서 PVP의 첨가(실험 2)가 배 발생과 세포수에 미치는 효과를 검토하였다. 돼지 미성숙 난자의 체외 성숙은 NCSU 23 용액, 체외 수정은 mTBM 용액, 체외 배양은 PZM 3 용액을 이용하였다. 체외 성숙용 배지에서 PVP의 분자량, 농도 및 첨가 시간에 따른 수정율과 배반포 발달율은 차이가 없었다. 그러나 배반포의 부화율은 분자량 40,000(30.1%), 0.5%(28.6%) 및 $0{\sim}44$시간(37.5%) 첨가군이 다른 시험군에 비하여 유의하게 높았다(p<0.05). 분자량 40,000 0.5% PVP를 체외성숙, 수정 및 배양 배지에 각각 첨가(W) 또는 미첨가(W/O)한 결과, 수정율은 체외성숙 수정 배양에서 W-W/O-W 군이 69.3%, 배반포 발달율과 부화율은 W-W/O-W 및 W-W/O-W/O 군이 각각 12.6과 30.0% 및 14.0과 37.5%로서 다른 군에 비하여 유의하게 높았다(p<0.05). 총 세포 수와 Trophoblast 수는 처리군 간에 유사한 경향이었으나, Inner cell mass 수는 W/O-W/O-W 군이 평균 7.4개로서 가장 높았다 (p<0.05).

Keywords

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