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The content of pyridine dinucleotides in the mouse embryo before implantation☆
[摘要] Nicotinamideadeninedinucleotide(NAD)contentwasfoundtodecreaseinmouseembryosduringcleavageandtoincreaseagainattheblastocyststage.ThefirstenzymeinvolvedinbiosynthesisofNADfromnicotinamideisnicotinamidemononucleotide(NMN)-pyrophosphorylase.Nosuchenzymaticactivitywasfoundintheembryos,butNAD-glycohydrolaseactivitywasrelativelyhigh24–48hoursafterconception.Enzymeactivitydecreasedintheblastocyst.Theresultsarerelevanttounderstandingtheregulationofmetabolisminpreimplantationembryos.
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[效力级别]  [学科分类] 生物科学(综合)
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