Improved Preparation of Soluble Dry Oxyhemoglobin Purified by Carbontetrachloride Treatment of Outdated Packed Erythrocytes
| Autor: | T I Pristoupil, J Stĕrbíková |
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| Rok vydání: | 1992 |
| Předmět: | |
| Zdroj: | The International Journal of Artificial Organs. 15:628-631 |
| ISSN: | 1724-6040 0391-3988 |
| DOI: | 10.1177/039139889201501011 |
| Popis: | A combination of treating outdated packed red blood cells (PRBCs) with carbontetrachloride, countercurrent dialysis and modified conditions of freeze-drying served to improve and standardize the technology of “stroma-free hemolysate” (SFH) in our laboratory. As a rule, proteins of the final product corresponded to 95% oxyhemoglobin, 3.5% methemoglobin and 1.5% non-hemoglobin ones. In freeze-dried samples stabilized with 0.24 molar saccharides, the weight proportions were 56% hemoglobin, 44% sucrose and/or 62% hemoglobin, and 38% fructose, respectively. If necessary, the saccharides could be rapidly removed from the easily reconstitued SFH by dialysis or chromatography. Analytical parameters were similar to those of chloroform-treated SFH stored dry at −12° C for 4 months. However, the present procedure was easier and SFH samples remained unchanged after dry storage even at +4° C for at least 13 months. This oxyhemoglobin product seems suitable for organ perfusion, further chemical modification and as an analytical standard. |
| Databáze: | OpenAIRE |
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