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Órgano Oficial de la Asociación Mexicana de Hepatología

2009, Number 1

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Ann Hepatol 2009; 8 (1)

Subzero nonfreezing storage of rat hepatocytes using modified University of Wisconsin solution (mUW) and 1,4-butanediol. I- effects on cellular metabolites during cold storage

Rodríguez JV, Almada LL, Mamprin ME, Guibert EE, Furno G

Language: Spanish
References: 29
Page: 57-62
PDF size: 138.65 Kb.


Text Extraction

Various cryopreservation techniques have been investigated to extend the storage of isolated hepatocytes; however, most have a reduced viability after rewarming due to ice crystal formation. Subzero nonfreezing conditions could theoretically reduce organ metabolism without damage due to ice crystal formation. In the present work we evaluated the viability and metabolic parameters of isolated rat hepatocytes preserved in subzero nonfreezing condition. Cell suspensions were maintained in modified University of Wisconsin (mUW) solution using 8% - 1,4-butanediol as cryoprotectant, up to 120 h at -4 ºC. The time course evolution of hepatocytes viability were measured by LDH release and propidium iodide assay. The cellular concentrations of glutathione, ATP, glycogen and the lactate production during cold storage were also determined. Finally, results were compared with conventional hypothermic storage at 0 ºC in mUW solution without cryoprotectant. After 5 days of subzero storage, we found an improvement in the ability of rat hepatocytes to maintain the metabolic resources in comparison with the cold preserved group.


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