The effect of gamma radiation on the lipid profile of irradiated red blood cells.
Ann Hematol
; 93(5): 753-60, 2014 May.
Article
em En
| MEDLINE
| ID: mdl-24218190
An investigation into the effects of irradiation and of the storage time on aging and quality are a relevant issue to ensure the safety and the efficiency of irradiation in the prevention of transfusion-associated graft-versus-host disease (TA-GVHD). In this work, the biochemical properties and alterations presented by erythrocyte membranes, up to 28-days post-irradiation, with a dose of 25 Gy, were studied as a function of storage and post-irradiation time. There was a considerable variation in the total of phospholipid content, when comparing the control and irradiated samples, mostly from the third day onwards; and at the same time, the effect occurred as a function on the storage time of blood bags. The levels of total cholesterol decreased 3-9 days after irradiation. TBARS levels were increased after irradiation and 7 days of storage, but no increment of catalase activity was observed after the irradiation. Furthermore, the protein profile was maintained throughout the irradiation and storage time, until the 21st day, with the presence of a protein fragmentation band of around 28 kDa on the 28th day. In conclusion, although gamma irradiation is the main agent for the prevention of TA-GVHD, a better understanding of the physical and biochemical properties of erythrocytes are necessary to better assess their viability, and to be able to issue more secure recommendations on the shelf life of blood bags, and the safe use of the irradiated red cells therein.
Texto completo:
1
Bases de dados:
MEDLINE
Assunto principal:
Fosfolipídeos
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Preservação de Sangue
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Colesterol
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Eritrócitos
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Raios gama
Idioma:
En
Revista:
Ann Hematol
Assunto da revista:
HEMATOLOGIA
Ano de publicação:
2014
Tipo de documento:
Article
País de afiliação:
Brasil