Reduction of Leishmania donovani infectivity in whole blood using riboflavin and ultraviolet light.
Transfusion
; 55(2): 326-9, 2015 Feb.
Article
em En
| MEDLINE
| ID: mdl-25156473
ABSTRACT
BACKGROUND:
Leishmaniasis is a vector-borne disease caused by the protozoan parasite Leishmania sp. that is transmitted by sandflies. Travelers to endemic areas, and US military personnel stationed in the Middle East, are at risk for contracting the disease. STUDY DESIGN ANDMETHODS:
Whole blood (WB) units were spiked with human monocytes infected with L. donovani amastigotes to a final concentration of approximately 10(5) infected cells/mL. After riboflavin (RB) addition, units were exposed to 80 J/mLRBCs ultraviolet (UV) light. One pretreatment (collected after RB addition) and one posttreatment sample were collected, serially diluted in culture medium, and incubated at 22°C for up to 5 weeks. Parasite viability was determined by microscopic observation for replicating promastigote forms.RESULTS:
Mirasol treatment of 3 units of L. donovani-infected WB with RB and UV light resulted in a parasite reduction of 2.3 ± 0.12 log.CONCLUSIONS:
Partial reduction of L. donovani can be achieved in WB using RB and UV light. This technology may be useful when potential donors are exposed to Leishmania sp. during residence, travel, or military deployment to an endemic area.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Riboflavina
/
Raios Ultravioleta
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Leishmania donovani
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Monócitos
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Desinfecção
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Fármacos Fotossensibilizantes
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Segurança do Sangue
Limite:
Female
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Humans
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Male
Idioma:
En
Ano de publicação:
2015
Tipo de documento:
Article