Institut de Recherche pour le Developpement, Paris, France.
Emerg Infect Dis. 2010 Nov;16(11):1666-70. doi: 10.3201/eid1611.101064.
For monitoring efficacy of sulfadoxine/pyrimethamine intermittent preventive treatment for malaria during pregnancy, data obtained from studies of children seemed inadequate. High prevalence of triple and quadruple mutants in the dihydropteroate synthase and dihydrofolate reductase genes of Plasmodium falciparum parasites contrasts with the efficacy of sulfadoxine/pyrimethamine in reducing low birthweights and placental infection rates. In light of this discrepancy, emphasis on using molecular markers for monitoring efficacy of intermittent preventive treatment during pregnancy appears questionable. The World Health Organization recently proposed conducting in vivo studies in pregnant women to evaluate molecular markers for detecting resistance precociously. Other possible alternative strategies are considered.
为了监测妊娠期间使用磺胺多辛/乙胺嘧啶间歇性预防治疗疟疾的效果,从儿童研究中获得的数据似乎不够充分。恶性疟原虫二氢叶酸合成酶和二氢叶酸还原酶基因中的三重和四重突变体的高流行率与磺胺多辛/乙胺嘧啶降低低出生体重和胎盘感染率的效果形成对比。鉴于这种差异,强调使用分子标记物来监测妊娠期间间歇性预防治疗的效果似乎值得怀疑。世界卫生组织最近提议在孕妇中进行体内研究,以评估用于早期检测耐药性的分子标记物。还考虑了其他可能的替代策略。