The influence of various storage conditions on cell viability in amniotic membrane

  • Hennerbichler S
  • Reichl B
  • Pleiner D
 et al. 
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Abstract

Up to now freeze-dried, gamma-sterilised or glycerol-preserved amniotic membranes {(AMs)} have widely been used in the field of ophthalmology and wound care (e.g. leg ulcers, burns). After some preservation processes in use, like freeze-drying or glycerol-preserving, the cells in the {AM} are no longer viable. Within this study we evaluated the influence of different short-term and long-term storage conditions on cell viability in {AM.} Therefore {AMs} from cesarean section placentae were washed and biopsied to evaluate the microbiological status and to determine the viability of the tissue. Additionally, viability under various storage conditions was examined by assessment of mitochondrial activity. Preservation included temperatures above and below 0 degrees C as well as various media compositions. As expected, cell viability in amnion decreases during storage, in fact the effect was more pronounced when stored frozen, but the higher viability of amnion obtained by storage above 0 degrees C with medium is associated with the limitation to a short period of storage of about 28 days. The evaluated preservation methods are the basis for future non-clinical in-vivo studies in which the possible benefit of amnion as a viable biomaterial in wound healing will be investigated.

Author-supplied keywords

  • Amniotic membrane Cell viability {EZ4U} L15 Preser

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Authors

  • Simone Hennerbichler

  • Bernd Reichl

  • Daniela Pleiner

  • Christian Gabriel

  • Johann Eibl

  • Heinz Redl

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