title: Effects of hydrosalpingeal fluid on murine embryo development and implantation.
abstract: OBJECTIVE
  Our purpose was to evaluate the effects of various concentrations of hydrosalpingeal fluid (HSF) on the preimplantation development and implantation of murine embryos.
  
  
  METHODS
  One-cell mouse embryos were cultured in KSOM culture medium with 0.1, 1.0, 10, or 50% HSF, without and with lactate supplementation. Late-stage embryos were transferred into the uteri of pseudopregnant CD-1 females to determine implantation rates. The embryo transfer technique used was developed by our group and its effectiveness was evaluated during this experiment.
  
  
  RESULTS
  Blastocyst development in the 0.1, 1.0, 10, and 50% group was 45, 55.0, 12.5, and 17.5%, respectively, with lactate supplementation, and 35.0, 52.5, 12.5, and 5.0%, respectively, without lactate supplementation, while in the KSOM (control) group it was 63.8%. Blastocyst development was reduced compared to controls in the 10% HSF and 50% HSF groups. Implantation rates for the 0.1 and 1.0% groups with lactate supplementation were 43.0 and 25.0%, respectively, and those with lactate supplementation were 50.6 and 61.8%, respectively, while in the KSOM group the implantation rate was 65.5%. None of the implantation rates were significantly different.
  
  
  CONCLUSIONS
  Hydrosalpingeal fluid has a concentration-dependent inhibitory effect on in vitro murine embryo development, but it has minimal effects on implantation rates.
authors.affiliation: Department of Obstetrics and Gynecology, Royal Victoria Hospital, McGill University, Montreal, Quebec, Canada.
authors.forename: J E
authors.initials: JE
authors.lastname: Roberts
authors.forename: H J
authors.initials: HJ
authors.lastname: Clarke
authors.forename: T
authors.initials: T
authors.lastname: Tulandi
authors.forename: S L
authors.initials: SL
authors.lastname: Tan
mesh_terms: D000818:Animals; D010064:Embryo Implantation / Q000502:physiology*; D004624:Embryo Transfer; D047108:Embryonic Development / Q000502:physiology; D005314:Embryonic and Fetal Development / Q000502:physiology*; D005184:Fallopian Tube Diseases / Q000150:complications* / Q000473:pathology; D005187:Fallopian Tubes / Q000473:pathology*; D005260:Female; D005307:Fertilization in Vitro / Q000379:methods; D006801:Humans; D051379:Mice; D011247:Pregnancy