Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos.

Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos. Research Abstract Details 

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Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos. Abstract Text:

C Suzuki,K Yoshioka,M Sakatani,M Takahashi,C Suzuki,K Yoshioka,M Sakatani,M Takahashi,C Suzuki,K Yoshioka,M Sakatani,M Takahashi,

SummaryWe previously developed an in vitro-production system for porcine embryos and reported that the addition of glutamine (Gln) and hypotaurine (HT) during in vitro culture improved embryo development. This study examined the effects of Gln and HT on in vitro development, intracellular oxidative status and DNA damage of porcine preimplantation embryos. Porcine zygotes produced by in vitro maturation (IVM) and in vitro fertilization (IVF) were cultured until day 2 (day 0 = day of IVF) in porcine zygote medium (PZM) including 2 mM Gln and 5 mM HT, namely PZM-5. On day 2, the cleaved embryos were selected and cultured for 24 h in PZM-5 to which one of the following substances was added: (1) none (control); (2) Gln; (3) HT; or (4) Gln + HT. After 24 h of culture in each medium, the embryos were then returned to PZM-5 and cultured until day 5. Day-5 blastocyst yield was significantly higher in the Gln and Gln + HT groups (p < 0.05) than in the control and HT groups. In addition, Gln + HT significantly increased the total number of cells in blastocysts (p < 0.05) compared with the control. Although the number of cells and the intracellular GSH levels in day-3 cleaved embryos did not differ among treatments, addition of Gln, HT or Gln + HT significantly (p < 0.05) reduced the intracellular H2O2 content and the extent of DNA damage compared with the control. These results indicate that the presence of Gln and HT in PZM-5 from day 2 to day 3 promotes the development of porcine embryos by improvement of intracellular oxidative status.

Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos. Publishing Authors By Initials

C Suzuki,K Yoshioka,M Sakatani,M Takahashi,C Suzuki,K Yoshioka,M Sakatani,M Takahashi,C Suzuki,K Yoshioka,M Sakatani,M Takahashi,

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Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Zygote (Cambridge, England)

VOLUME: 15

Page Numbers: 317-24

Journal Abbreviation: Zygote

ISSN: 0967-1994

DAY: 30

MONTH: Nov

YEAR: 2007

Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos. Information

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LANGUAGE: eng

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Grant and Affiliation Information for Glutamine and hypotaurine improves intracellular oxidative status and in vitro development of porcine preimplantation embryos.

AFFILIATION: Research Team for Production Diseases, National Institute of Animal Health, Kannondai 3-1-5, Tsukuba, Ibaraki 305-0856, Japan.

Country: England

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MEDLINETA: Zygote

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