In vitro susceptibility of Plasmodium falciparum isolates from Myanmar to antimalarial drugs

被引：26
作者：
Wongsrichanalai, C
Lin, K
Pang, LW
Faiz, MA
Noedl, H
Wimonwattrawatee, T
Laoboonchai, A
Kawamoto, F
机构：
[1] Armed Forces Res Inst Med Sci, Bangkok 10400, Thailand
[2] Minist Hlth, Dept Hlth, Vector Borne Dis Control Project, Yangon, Myanmar
[3] Chittagong Med Coll, Dept Med, Chittagong, Bangladesh
[4] Univ Vienna, Inst Pathophysiol, Dept Specif Prophylaxis & Trop Med, Vienna, Austria
[5] Nagoya Univ, Sch Med, Dept Int Hlth, Nagoya, Aichi 466, Japan
来源：
AMERICAN JOURNAL OF TROPICAL MEDICINE AND HYGIENE | 2001年 / 65卷 / 05期
关键词：
D O I：
10.4269/ajtmh.2001.65.450
中图分类号：
R1 [预防医学、卫生学];
学科分类号：
1004 ; 120402 ;
摘要：
In vitro drug susceptibility profiles were assessed in 75 Plasmodium falciparum isolates from 4 sites in Myanmar. Except at Mawlamyine, the site closest to the Thai border, prevalence and degree of resistance to mefloquine were lower among the Myanmar isolates as compared with those from Thailand. Geometric mean concentration that inhibits 50% (IC50) and 90% (IC90) of Mawlamyine isolates were 51 nM (95% confidence interval [CI], 40-65) and 124 nM (95% Cl, 104-149), respectively. At the nearest Thai site, Maesod, known for high-level multidrug resistance, the corresponding values for mefloquine IC50 and IC90 were 92 nM (95% Cl, 71-121) and 172 nM (95% CI, 140-211). Mefloquine susceptibility of P. falciparum in Myanmar, except for Mawlamyine, was consistent with clinical-parasitological efficacy in semi-immune people. High sensitivity to artemisinin compounds was observed in this geographical region. The data suggest that highly mefloquine-resistant P. falciparum is concentrated in a part of the Thai-Myanmar border region.
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收藏
页码：450 / 455
页数：6
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