Study of the primo-vascular system and location-dependent oxygen levels for a mouse embryo

Minyoung Hong, Sarah S. Park, Hyunkyung Do, Gil Ja Jhon, Minah Suh, Youngmi Lee

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


The two major circulatory systems, the lymph system and the blood vessel system, play signi?cant roles in controlling embryonic development. The primo-vascular system (PVS) was recently reported as an additional circulatory system in various animals. In this paper, the PVS in a mouse embryo was investigated. The structural characterization of the PVS in the mouse placenta and umbilical cord, which was visualized with the trypan blue staining technique, was focused on. The PVS was well-developed in the mouse placenta area. Using a nanopore-based amperometric oxygen sensor, the oxygen levels at four different areas of the embryonic brain, placenta, blood vessel, and primovessel of the PVS were measured. The relatively higher oxygen levels that were measured at the primo-vessels than at the brain and the placenta, while still lower than the oxygen level that was measured at the blood vessels, may suggest a role of PVS in oxygen transport.

Original languageEnglish
Pages (from-to)5168-5172
Number of pages5
JournalJournal of Nanoscience and Nanotechnology
Issue number7
StatePublished - Jul 2012


  • Amperometric Oxygen Microsensor
  • Mouse Embryo
  • Primo-Vascular System
  • Tissue Oxygen Level


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