Vet Med - Czech, 2005, 50(5):219-224 | DOI: 10.17221/5618-VETMED

Cryoprotection of porcine cornea: a scanning electron microscopy study

A. Neronov1, P. Giurov2, M. Cholakova1, M. Dimitrova1, E. Nikolova1
1 Institute of Experimental Morphology and Anthropology, Bulgarian Academy of Sciences, Sofia, Bulgaria
2 Institute of Experimental Pathology and Parasitology, Bulgarian Academy of Sciences, Sofia, Bulgaria

Porcine corneas were frozen with Me2SO, glycerol, 1,2-propanediol and PEG-400. The effects of the range of concentrations (5% and 10%) and temperature regimen (1ºC/min and 5ºC/min) were investigated. The integrity of corneal endothelial cells was evaluated by scanning electron microscopy and trypan blue staining. The presence of 5-10% PEG-400 in the protective medium was the most effective in minimizing changes in the integrity of the corneal endothelium during freezing-thawing procedures.

Keywords: porcine cornea; Me2SO; glycerol; 1,2-propanediol; PEG-400

Published: May 31, 2005  Show citation

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Neronov A, Giurov P, Cholakova M, Dimitrova M, Nikolova E. Cryoprotection of porcine cornea: a scanning electron microscopy study. Vet Med - Czech. 2005;50(5):219-224. doi: 10.17221/5618-VETMED.
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References

  1. T., Schwan I., Zeidler C., Muller-Goymann C.C. (2004a): Comparison of different ibuprofen-amino acid compounds with respect to emulsifying and cytotoxic properties. International Journal of Pharmaceutics, 274, 157-165. Go to original source... Go to PubMed...
  2. Baydoun L., Furrer P., Gurny R., Muller-Goymann C.C. (2004b): New surface-active polymers for ophthalmic formulations: evaluation of ocular tolerance. European Journal of Pharmaceutics and Biopharmaceutics, 58, 169-175. Go to original source... Go to PubMed...
  3. Bourne W.M., Nelson L.R. (1994): Human corneal studies with a vitrification solution containing dimethyl sulphoxide, formamide, and 1,2-propanediol. Cryobiology, 31, 522-530. Go to original source... Go to PubMed...
  4. Bourne W.M., Shearer D.R., Nelson L.R. (1994): Human corneal endothelial tolerance to glycerol, dimethylsulphoxide, 1,2-propanediol, and 2,3-butanediol. Cryobiology, 31, 1-9. Go to original source... Go to PubMed...
  5. Canals M., Costa J., Potau J.M., Merindano M.D., Puta D., Ruano D. (1996): Long-term cryopreservation of human donor corneas. European Journal of Ophthalmology, 6, 234-241. Go to original source... Go to PubMed...
  6. Canals M., Costa-Vila J., Potau J.M., Merindano M.D., Ruano D. (1999): Morphological study of cryopreserved human corneal endothelium. Cell Tissues Organs, 164, 37-45. Go to original source... Go to PubMed...
  7. Capella J.A., Kaufman H.E., Robbins J.E. (1965): Preservation of viable corneal tissue. Archives of Ophthalmology, 74, 669-673. Go to original source... Go to PubMed...
  8. Choy E.P., To T.S., Cho P., Benzie I.F., Choy C.K. (2004a): Viability of porcine corneal epithelium ex vivo and effect of exposure to air: a pilot study for a dry eye model. Cornea, 23, 715-719. Go to original source... Go to PubMed...
  9. Choy E.P., Cho P., Benzie I.F., Choy C.K., To T.S. (2004b): A novel porcine dry eye model system (pDEM) with simulated lacrimation/blinking system: preliminary findings on system variability and effect of corneal drying. Current Eye Research, 28, 319-325. Go to original source... Go to PubMed...
  10. Grieve K., Paques M., Dubois A., Sahel J., Boccara C., Le Gargasson J.F. (2004): Ocular tissue imaging ultrahigh-resolution, full-field optical coherence tomography. Investigative Ophthalmology & Visual Science, 45, 4126-4131. Go to original source... Go to PubMed...
  11. Halberstadt M., Athmann S., Hagenah M. (2001): Corneal cryopreservation with dextran. Cryobiology, 43, 71-80. Go to original source... Go to PubMed...
  12. Jurchenko T.N., Sharlaj TM (1979): On the problem of cornea cryopreservation (in Russian). Kriobiologija i kriomeditsina, 5, 81-88.
  13. Meryman H.T. (1971): Osmotic stress as a mechanism of freezing injury. Cryobiology, 8, 173-183. Go to original source... Go to PubMed...
  14. Muller B., Boeck T., Hartmann C. (2004): Effect of excimer laser beam delivery and beam shaping on corneal sphericity in photorefractive keratectomy. Journal of Cataract and Refractive Surgery, 30, 464-470. Go to original source... Go to PubMed...
  15. Neronov A.J., Michailova-Boiadjieva A. (1989): Cryopreservation of rabbit cornea with polyethylene oxide-400. A scanning electron microscopy study. CryoLetters, 10, 279-288.
  16. Schneider A.I., Maier-Reif K., Graeve T. (1999): Constructing an in vitro cornea from cultures of the three specific corneal cell types. In Vitro Cellular & Development Biology - Animal, 35, 515-526. Go to original source... Go to PubMed...
  17. Spoerl E., Wollensak G., Seiler T. (2004): Increased resistance of crosslinked cornea against enzymatic digestion. Current Eye Research, 29, 35-40. Go to original source... Go to PubMed...
  18. Tehrani M., Schafer S., Dick H.B. (2004): Evaluation of cut quality using the Amadeus microkeratome with different settings. Journal of Cataract and Refractive Surgery, 30, 2415-2419. Go to original source... Go to PubMed...
  19. Wusterman M.C., Armitage J.W., Wang L.H., Busza A.L., Pegg D.E. (1999): Cryopreservation studies with porcine corneas. Current Eye Research, 19, 228-233. Go to original source... Go to PubMed...

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