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drug resistant

Molecular detection of drug resistant polymorphisms in Plasmodium falciparum isolates from Southwest, Nigeria

October 31, 2020 - 09:24 -- Open Access
Author(s): 
Tola M, Ajibola O, Idowu ET, Omidiji O, Awolola ST, Amambua-Ngwa A.
Reference: 
BMC Res Notes. 2020 Oct 27;13(1):497

Nigeria bears 25% of global malaria burden despite concerted efforts towards its control and elimination. The emergence of drug resistance to first line drugs, artemisinin combination therapies (ACTs), indicates an urgent need for continuous molecular surveillance of drug resistance especially in high burden countries where drug interventions are heavily relied on. This study describes mutations in Plasmodium falciparum genes associated with drug resistance in malaria; Pfk13, Pfmdr1, PfATPase6 and Pfcrt in isolates obtained from 83 symptomatic malaria patients collected in August 2014, aged 1–61 years old from South-west Nigeria.

NOT Open Access | High-throughput virtual screening approach involving pharmacophore mapping, ADME filtering, molecular docking and MM-GBSA to identify new dual target inhibitors of PfDHODH and PfCytbc1 complex to combat drug resistant malaria

June 26, 2020 - 12:03 -- NOT Open Access
Author(s): 
Rawat R, Verma SM
Reference: 
J Biomol Struct Dyn. 2020 Jun 24:1-12

Emerging cases of drug resistance against Artemisinin combination therapies which are the current and the last line of defense against malaria makes the situation very alarming. Due to the liability of single-target drugs to be more prone to drug resistance, the trend of development of dual or multi-target inhibitors is emerging. Recently, a malaria box molecule, MMV007571 which is a well known new permeability pathways inhibitor was investigated to be also multi-targeting Plasmodium falciparum dihydroorotate dehydrogenase and cytochrome bc1 complex. The aspiration behind this study was to use the information of its pharmacophoric features essential for binding as two of its new targets.

Influx of diverse, drug resistant and transmissible Plasmodium falciparum into a malaria-free setting in Qatar

June 17, 2020 - 12:52 -- Open Access
Author(s): 
Al-Rumhi A, Al-Hashami Z, Al-Hamidhi S, Gadalla A, Naeem R, Ranford-Cartwright L, Pain A, Sultan AA, Babiker HA
Reference: 
BMC Infect Dis. 2020 Jun 15; 20(1):413

Successful control programs have impeded local malaria transmission in almost all Gulf Cooperation Council (GCC) countries: Qatar, Bahrain, Kuwait, Oman, the United Arab Emirates (UAE) and Saudi Arabia. Nevertheless, a prodigious influx of imported malaria via migrant workers sustains the threat of local transmission. Here we examine the origin of imported malaria in Qatar, assess genetic diversity and the prevalence of drug resistance genes in imported Plasmodium falciparum, and finally, address the potential for the reintroduction of local transmission.

Rubber plantations and drug resistant malaria: a cross-sectional survey in Cambodia

December 3, 2019 - 15:26 -- Open Access
Author(s): 
Rebecca Thomson, Phok Sochea, Mak Sarath, Amanda MacDonald, Abigail Pratt, Steve Poyer, Henrietta Allen, Sok Kunthy, Sok Chamroeun, Kim Daro, Sourn Samean, Nou Panharith, Sok Ra, Chan Sovottha, Gary Mundy and Shunmay Yeung
Reference: 
Malaria Journal 2019 18:379, 27 November 2019

The ongoing spread of artemisinin resistant Plasmodium falciparum malaria is a major threat to global health. In response, countries in the Greater Mekong Sub-region, including Cambodia, have declared ambitious goals to eliminate malaria. Major challenges include the lack of information on the at-risk population-individuals who live or work in or near the forest where the malaria vectors are found, including plantation workers. This study aimed to address this knowledge gap through a cross-sectional survey conducted in rubber plantations in Cambodia in 2014.

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