{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T13:48:00Z","timestamp":1790171280806,"version":"4.1.0"},"reference-count":51,"publisher":"American Society for Microbiology","issue":"10","license":[{"start":{"date-parts":[[2016,10,1]],"date-time":"2016-10-01T00:00:00Z","timestamp":1475280000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.asm.org\/non-commercial-tdm-license"}],"content-domain":{"domain":["journals.asm.org"],"crossmark-restriction":true},"short-container-title":["Antimicrob Agents Chemother"],"published-print":{"date-parts":[[2016,10]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n          <jats:p>\n            Dihydroartemisinin-piperaquine (DP) offers prolonged protection against malaria, but its impact on\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">Plasmodium falciparum<\/jats:named-content>\n            drug sensitivity is uncertain. In a trial of intermittent preventive treatment in schoolchildren in Tororo, Uganda, in 2011 to 2012, monthly DP for 1 year decreased the incidence of malaria by 96% compared to placebo; DP once per school term offered protection primarily during the first month after therapy. To assess the impact of DP on selection of drug resistance, we compared the prevalence of key polymorphisms in isolates that emerged at different intervals after treatment with DP. Blood obtained monthly and at each episode of fever was assessed for\n            <jats:named-content xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" content-type=\"genus-species\" xlink:type=\"simple\">P. falciparum<\/jats:named-content>\n            parasitemia by microscopy. Samples from 160 symptomatic and 650 asymptomatic episodes of parasitemia were assessed at 4 loci (N86Y, Y184F, and D1246Y in\n            <jats:italic>pfmdr1<\/jats:italic>\n            and K76T in\n            <jats:italic>pfcrt<\/jats:italic>\n            ) that modulate sensitivity to aminoquinoline antimalarials, utilizing a ligase detection reaction-fluorescent microsphere assay. For\n            <jats:italic>pfmdr1<\/jats:italic>\n            N86Y and\n            <jats:italic>pfcrt<\/jats:italic>\n            K76T, but not the other studied polymorphisms, the prevalences of mutant genotypes were significantly greater in children who had received DP within the past 30 days than in those not treated within 60 days (86Y, 18.0% versus 8.3% [\n            <jats:italic>P<\/jats:italic>\n            = 0.03]; 76T, 96.0% versus 86.1% [\n            <jats:italic>P<\/jats:italic>\n            = 0.05]), suggesting selective pressure of DP. Full sequencing of\n            <jats:italic>pfcrt<\/jats:italic>\n            in a subset of samples did not identify additional polymorphisms selected by DP. In summary, parasites that emerged soon after treatment with DP were more likely than parasites not under drug pressure to harbor\n            <jats:italic>pfmdr1<\/jats:italic>\n            and\n            <jats:italic>pfcrt<\/jats:italic>\n            polymorphisms associated with decreased sensitivity to aminoquinoline antimalarials. (This study has been registered at ClinicalTrials.gov under no. NCT01231880.)\n          <\/jats:p>","DOI":"10.1128\/aac.00920-16","type":"journal-article","created":{"date-parts":[[2016,7,12]],"date-time":"2016-07-12T06:28:56Z","timestamp":1468304936000},"page":"5649-5654","update-policy":"https:\/\/doi.org\/10.1128\/asmj-crossmark-policy-page","source":"Crossref","is-referenced-by-count":28,"title":["Intermittent Preventive Treatment with Dihydroartemisinin-Piperaquine in Ugandan Schoolchildren Selects for Plasmodium falciparum Transporter Polymorphisms That Modify Drug Sensitivity"],"prefix":"10.1128","volume":"60","author":[{"given":"Joaniter I.","family":"Nankabirwa","sequence":"first","affiliation":[{"name":"Department of Internal Medicine, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda"},{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Melissa D.","family":"Conrad","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of California, San Francisco, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jennifer","family":"Legac","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of California, San Francisco, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen","family":"Tukwasibwe","sequence":"additional","affiliation":[{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Tumwebaze","sequence":"additional","affiliation":[{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bonnie","family":"Wandera","sequence":"additional","affiliation":[{"name":"Department of Epidemiology and Biostatistics, School of Public Health, Makerere University College of Health Sciences, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Simon J.","family":"Brooker","sequence":"additional","affiliation":[{"name":"London School of Hygiene &amp; Tropical Medicine, London, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sarah G.","family":"Staedke","sequence":"additional","affiliation":[{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"},{"name":"London School of Hygiene &amp; Tropical Medicine, London, United Kingdom"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moses R.","family":"Kamya","sequence":"additional","affiliation":[{"name":"Department of Internal Medicine, School of Medicine, Makerere University College of Health Sciences, Kampala, Uganda"},{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sam L.","family":"Nsobya","sequence":"additional","affiliation":[{"name":"Infectious Diseases Research Collaboration, Kampala, Uganda"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grant","family":"Dorsey","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of California, San Francisco, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Philip J.","family":"Rosenthal","sequence":"additional","affiliation":[{"name":"Department of Medicine, University of California, San Francisco, California, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"235","reference":[{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.30875\/1cee73f9-en"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(13)60024-0"},{"key":"e_1_3_3_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(10)61270-6"},{"key":"e_1_3_3_5_2","doi-asserted-by":"publisher","DOI":"10.1586\/eri.10.36"},{"key":"e_1_3_3_6_2","volume-title":"WHO policy recommendation: seasonal malaria chemoprevention (SMC) for Plasmodium falciparum malaria control in highly seasonal transmission areas of the Sahel sub-region in Africa","author":"World Health Organization Global Malaria Programme","year":"2012","unstructured":"World Health Organization Global Malaria Programme. 2012. 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