iNOS promoter variants and severe malaria in Ghanaian children.
Trop Med Int Health
; 9(10): 1074-80, 2004 Oct.
Article
en En
| MEDLINE
| ID: mdl-15482399
ABSTRACT
Nitric oxide is an important mediator in the host defence against Plasmodium falciparum malaria. It has antiparasitic effects in vitro. However, its role in clinical disease remains controversial. Polymorphisms in the inducible nitric oxide synthase promoter (iNOS; -954G-->C, -1173C-->T, -2.6 kb CCTTT(n) microsatellite) may influence susceptibility to and severity of malaria. We tested this hypothesis in a case-control study among Ghanaian children with severe malaria (SM) and asymptomatic parasitaemia, respectively, and in healthy controls. In this study, the respective frequencies of iNOS-954G-->C and -1173C-->T did not differ between groups but > or =13 microsatellite copies were associated with SM. -954G-->C and -1173C-->T were in linkage disequilibrium with CCTTT(8) and CCTTT(13), respectively. -954G-->C/CCTTT(8) protected against hyperparasitaemia whereas -1173C-->T/CCTTT(13) increased fatality. These findings suggest that iNOS promoter haplotypes rather than single nucleotide polymorphisms are associated with malaria in Ghanaian children.
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Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
2_ODS3
/
3_ND
Problema de salud:
2_enfermedades_transmissibles
/
3_malaria
/
3_neglected_diseases
Asunto principal:
Regiones Promotoras Genéticas
/
Óxido Nítrico Sintasa
/
Predisposición Genética a la Enfermedad
/
Malaria
Tipo de estudio:
Observational_studies
/
Risk_factors_studies
Límite:
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
Idioma:
En
Revista:
Trop Med Int Health
Asunto de la revista:
MEDICINA TROPICAL
/
SAUDE PUBLICA
Año:
2004
Tipo del documento:
Article
País de afiliación:
Alemania