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Bull Soc Pathol Exot ; 104(4): 277-83, 2011 Oct.
Artículo en Francés | MEDLINE | ID: mdl-21818679

RESUMEN

The impact of intermittent presumptive treatment (IPT) on the immunity of pregnant women in Senegal is still not very well known. We conducted a prospective study at the Roi-Baudouin maternity of Guediawaye in Senegal to assess IgG antibodies production against MSP1, GLURP and DBL5 in pregnant women under IPT. Blood samples were collected from the participating women at inclusion and delivery. Samples were analyzed after centrifugation for the detection of IgG antibodies in sera by Elisa. Informed consent was given by each study participant prior to their inclusion. A total of 101 eligible women aged from 18 to 44 were included in this study. Multigravidae women represented 70.3% of the study population, whereas primigravidae accounted for 29.7%. The IgG level decreased slightly from inclusion to delivery for the women with regard to anti-MSP1 (83.1at inclusion versus 79.5 at delivery, p = 0.52) as well as anti-GLURP-R2 (84.1 at inclusion versus 75.9 at delivery, p = 0.16). After adjustment for number of pregnancies, there was a significant decrease in the production of anti-VAR2CSA between inclusion and delivery (p < 0.05). By reducing the incidence of malaria during pregnancy, IPT reduced the acquisition of placental parasites antibodies suppressors which could delay the development of protective immunity against malaria. The application of IPT in pregnant women would thus be more appropriate in hypoendemic areas where malaria exposure is lower.


Asunto(s)
Anticuerpos Antivirales/sangre , Antígenos de Protozoos/inmunología , Antimaláricos/administración & dosificación , Malaria Falciparum/prevención & control , Complicaciones Parasitarias del Embarazo/prevención & control , Pirimetamina/administración & dosificación , Sulfadoxina/administración & dosificación , Adolescente , Adulto , Combinación de Medicamentos , Femenino , Humanos , Inmunoglobulina G/sangre , Malaria Falciparum/epidemiología , Malaria Falciparum/inmunología , Plasmodium falciparum/inmunología , Embarazo , Complicaciones Parasitarias del Embarazo/inmunología , Estudios Prospectivos , Senegal/epidemiología
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