Reproductive and Developmental Biology

  • 제37권4호
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  • Pages.281-287
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  • 2013
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  • 1738-2432(pISSN)
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  • 2288-0151(eISSN)
한국동물번식학회 (The Korean Society of Animal Reproduction)
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Caffeine Treatment during Oocyte Aging Improves the Developmental Rate and Quality in Bovine Embryos Developing In Vitro

  • Choi, Hyun-Yong (Jeju National University Stem Cell Research Center, Jeju National University) ;
  • Lee, Sung-Hyun (Department of Animal Sciences, Chungbuk National University) ;
  • Xu, Yong-Nan (Department of Animal Sciences, Chungbuk National University) ;
  • Lee, Seung-Eun (Jeju National University Stem Cell Research Center, Jeju National University) ;
  • Kim, Nam-Hyung (Department of Animal Sciences, Chungbuk National University)
  • 투고 : 2013.12.13
  • 심사 : 2013.12.18
  • 발행 : 2013.12.31
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초록

In mammal, unfertilized oocytes remain in the oviduct or under in vitro culture, which is called "oocyte aging". This asynchrony negatively affects fertilization in pre- and post-implantation embryo development. Caffeine a phosphodiesterase inhibitor is known to rescue oocyte aging in several species. The objective of this study is to determine the cytoskeleton distribution in aged oocytes and the embryo developmental ability of aged oocytes in the present or absence of caffeine during maturation. Caffeine treatment increased the incidence of normal spindle assembly of aged oocytes (treatment, $67.57{\pm}4.11%$ aging, $44.61{\pm}6.4%$) and no significant differences compared to control group. Fluorescence values were compared using ROS (Reactive oxidation species) stain. Fluorescence values appear of control group intensity rate ($51.53.{\pm}3.80$), aging group ($68.10{\pm}5.54$) and treatment of caffeine ($45.04{\pm}2.98$). Aged oocytes that were derived from addition of caffeine to the IVM (in vitro maturation) medium had significantly increased 2-cell that developed to the blastocyst stage compared to the aging group. Blastocysts, derived from caffeine treatment group, significantly increased the total cell number compare aging ($90.44{\pm}10.18$ VS $67.88{\pm}7.72$). Apoptotic fragments of genomic DNA were measured in individual embryo using TUNEL assay. Blastocyst derived from caffeine treatment group decreased significantly the apoptotic index compared to blastocyst derived from aging group. In conclusion, we inferred that the caffeine treatment during oocyte aging can improve the developmental rate and quality in bovine embryos developing in vitro.

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참고문헌

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