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antimalarial drug resistance

Antimalarial drug resistance molecular makers of Plasmodium falciparum isolates from Sudan during 2015-2017

August 24, 2020 - 14:05 -- Open Access
Author(s): 
Hussien M, Abdel Hamid MM, Elamin EA, Hassan AO, Elaagip AH, Salama AHA, Abdelraheem MH, Mohamed AO
Reference: 
PLoS One. 2020 Aug 20;15(8):e0235401

Current malaria control and elimination strategies rely mainly on efficacious antimalarial drugs. However, drug resistance is a major threat facing malaria control programs. Determination of drug resistance molecular markers is useful in the monitoring and surveillance of malaria drug efficacy. This study aimed to determine the mutations and haplotypes frequencies of different genes linked with antimalarial drug resistance in certain areas in Sudan.

NOT Open Access | Antimalarial Drug Resistance Profiling of Plasmodium falciparum Infections in Ghana Using Molecular Inversion Probes and Next-Generation Sequencing

March 30, 2020 - 10:49 -- NOT Open Access
Author(s): 
Mensah BA, Aydemir O, Myers-Hansen JL, Opoku M, Hathaway NJ, Marsh PW, Anto F, Bailey J, Abuaku B, Ghansah A
Reference: 
Antimicrob Agents Chemother. 2020 Mar 24;64(4). pii: e01423-19

A key drawback to monitoring the emergence and spread of antimalarial drug resistance in sub-Saharan Africa is early detection and containment. Next-generation sequencing methods offer the resolution, sensitivity, and scale required to fill this gap by surveilling for molecular markers of drug resistance.

Molecular detection of antimalarial drug resistance in Plasmodium vivax from returned travellers to NSW, Australia during 2008-2018

February 16, 2020 - 09:23 -- Open Access
Author(s): 
Noisang C, Meyer W, Sawangjaroen N, Ellis J, Lee R
Reference: 
Pathogens. 2020 Feb 5;9(2). pii: E101

To monitor drug resistance in Plasmodium vivax, a multidrug resistance 1 (Pvmdr1) gene and a putative transporter protein (Pvcrt-o) gene were used as molecular markers for chloroquine resistance. The biomarkers, the dihydrofolate reductase (Pvdhfr) gene and the dihydropteroate synthetase (Pvdhps) gene, were also used for the detection of resistance to sulphadoxine-pyrimethamine (SP); this drug is often accidentally used to treat P. vivax infections. Clinical blood samples (n = 120) were collected from patients who had been to one of eight malaria-endemic countries and diagnosed with P. vivax infection.

Capacity Development through the US President’s Malaria Initiative–Supported Antimalarial Resistance Monitoring in Africa Network

November 5, 2017 - 18:34 -- Open Access
Author(s): 
Eric S. Halsey, Meera Venkatesan, Venkatachalam Udhayakumar, et al.
Reference: 
Emerging Infectious Diseaes , Volume 23, Supplement—December 2017

Antimalarial drug resistance is an evolving global health security threat to malaria control.

Early detection of Plasmodium falciparum resistance through therapeutic efficacy studies and associated genetic analyses may facilitate timely implementation of intervention strategies. The US President’s Malaria Initiative–supported Antimalarial Resistance Monitoring in Africa (PARMA) Network has assisted numerous laboratories in partner countries in acquiring the knowledge and capability to independently monitor for molecular markers of antimalarial drug resistance.

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