Fertilization and early embryology: Antioxidative capacity of preimplantation embryo culture medium declines following the incubation of poor quality embryos

Abstract excerpt

Total antioxidative capacity (TAC), a measure of overall free-radical scavenging potential, was determined by enhanced chemiluminescence in preimplantation embryo culture medium (PECM; pre-equilibrated Ham's F-10 medium supplemented with 7.5% patient's serum). Changes were evaluated in PECM TAC following a 24 h incubation of 66 single human embryos, as was TAC of patient's serum alone. The PECM TAC averaged 8.1%...

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