Polyvinylalcohol-carbazate (PVAC) reduces red blood cell hemolysis

Autoři: Felix Sellberg aff001;  Fanny Fredriksson aff002;  Thomas Engstrand aff003;  Tim Melander Bowden aff004;  Bo Nilsson aff001;  Jaan Hong aff001;  Folke Knutson aff001;  David Berglund aff001
Působiště autorů: Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden aff001;  Department of Women’s and Children’s Health, Section of Pediatric Surgery, Uppsala University, Uppsala, Sweden aff002;  Department of Surgical Sciences, Uppsala University, Uppsala, Sweden aff003;  Department of Chemistry—Ångström Laboratory, Uppsala University, Uppsala, Sweden aff004
Vyšlo v časopise: PLoS ONE 14(12)
Kategorie: Research Article
prolekare.web.journal.doi_sk: 10.1371/journal.pone.0225777


Background and objectives

The objective of this study was to investigate whether a soluble polymer and aldehyde-scavenger, polyvinylalcohol-carbazate (PVAC), can inhibit hemolysis in the storage of red blood cells (RBC).

Study design and methods

The effect of PVAC was assessed over a wide range of concentrations, using absorption spectroscopy to evaluate the level of hemolysis. Moreover, osmotic stability and aldehyde-scavenging potential of RBC were assessed after storage in PVAC.


After test tube storage for two weeks, red blood cell hemolysis was lower with PVAC compared to controls (mean difference 23%, 95% CI 16–29%, p < 0.001). A higher level of hemolysis led to a pronounced effect with PVAC. RBC stored in PVAC improved both the binding of free aldehydes (p <0.001) and the osmotic stability (p = 0.0036).


Erythrocytes stored with PVAC showed less hemolysis, which might be explained by the ability of PVACs to stabilize the cell membrane and decrease oxidative injury.

Klíčová slova:

Acetaldehyde – Aldehydes – Blood – Hemoglobin – Immunoprecipitation – Red blood cells – Specimen storage – Hypotonic solutions


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Článok vyšiel v časopise


2019 Číslo 12