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Keywords:

  • human sperm;
  • cryopreservation;
  • oviductal epithelial cell;
  • co-culture

The human oviduct is known as a functional site for gamete transportation, retention, fertilization and zygote development. Previous studies have shown that human oviductal epithelial cell cultural medium (OECCM) has a positive effect on prolongation of sperm motility for some cryopreserved human sperm without cryodamage. However, for most cryopreserved sperm, OECCM could not improve their survival prolongation. In this study, we assessed the influence of human OECCM on the motility longevity of cryopreserved human sperm with an in vitro incubation method.