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Background: The genetic progression of the MDR1 gene in , a key factor in drug resistance, presents significant challenges for malaria control. This study aims to elucidate the genetic diversity and evolutionary dynamics of P. falciparum, particularly focusing on the MDR1 gene across multi-regional populations. To analyze the genetic diversity of P. falciparum MDR1 gene across various multi-regional populations between 2014 and 2024, assessing allelic richness, genetic distances, and evolutionary patterns.
Methods: We conducted an extensive genetic analysis using methods such as Analysis of Molecular Variance (AMOVA), pairwise population matrices of Nei unbiased genetic distance and identity, PhiPT and Phi'PT values, and Principal Coordinates Analysis (PCoA). The study covered diverse P. falciparum populations from India, Nigeria, Ethiopia, Honduras, China, and Cameroon.
Findings: Our findings reveal significant genetic heterogeneity in the MDR1 gene. Populations like India: Odisha (2014) exhibited high allelic richness, indicating diverse drug resistance profiles. Notable genetic divergence was observed, especially between India (2016) and Nigeria (2020), suggesting different evolutionary trajectories in drug resistance. The PCoA analysis highlighted the multi-dimensional genetic variation, reflecting the complex interplay of factors influencing drug resistance in P. falciparum.
Interpretation: The comprehensive analysis of P. falciparum's MDR1 gene provides crucial insights into the multi-regional patterns of drug resistance. This knowledge is essential for developing effective malaria control measures and adapting treatment strategies to the evolving genetic diversity of the parasite.
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http://dx.doi.org/10.1016/j.crmicr.2024.100304 | DOI Listing |
Sci Rep
August 2025
Department of Parasitology and Mycology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Candida onychomycosis is a common fungal nail infection where treatment efficacy can be compromised by antifungal resistance. This study investigates the role of efflux pump genes (CDR1, CDR2, and MDR1) and biofilm-associated genes (ALS1, ALS3) in Candida albicans isolates classified as resistant to itraconazole from patients with onychomycosis. Ten itraconazole-resistant and 10 sensitive isolates were collected for efflux pump and biofilm-associated gene expression analysis by Real-Time PCR methods.
View Article and Find Full Text PDFArtemisinin partial resistance (ART-R) in , due to mutations in the Kelch13 (K13) propeller domain, is spreading across Africa. However, data from Central Africa remain sparse. This study performed molecular surveillance in a peri-urban sentinel site in Libreville, Gabon, from 2021 to 2023 to assess emerging resistance markers and parasite population dynamics.
View Article and Find Full Text PDFMycoses
August 2025
Department of Infectious, Tropical Diseases and Microbiology, IRCCS Sacro Cuore Don Calabria Hospital, Verona, Italy.
Background: Antifungal resistance is an expanding and increasingly significant issue representing a global threat for public health. In the last few years, different cases of dermatophytosis infections due to terbinafine-resistant Trichophyton mentagrophytes have been reported worldwide. In particular, T.
View Article and Find Full Text PDFAntimicrob Agents Chemother
August 2025
Department of Pharmacy and Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.
has emerged as a fungal pathogen of particular concern owing in part to its propensity to exhibit antifungal resistance, especially to the commonly prescribed antifungal fluconazole. A mutation in , which encodes a zinc cluster transcription factor, has been shown to confer increased resistance to fluconazole. In this work, we aimed to determine how mutations in exert this effect.
View Article and Find Full Text PDFEur J Pharm Biopharm
October 2025
Leicester School of Pharmacy, De Montfort University, Leicester, United Kingdom; Division of Pharmacy and Optometry, School of Health Sciences, University of Manchester, United Kingdom. Electronic address:
Different strategies and multifunctional nano-carriers have been employed to enhance chemotherapeutic drugs bioavailability and tackle acquired multi-drug resistance (MDR) thus ensuring efficient chemotherapy with fewer adverse effects. Among these, mesoporous Silica Nanoparticles (MSNs) are exciting matrices for improving cytotoxic drugs bioavailability and circumventing MDR through its potential of co-delivery of anticancer agents and short interfering RNA (siRNA). In this study, MSNs were coated with (1:1) Polyethyleneimine (PEI) and phospholipids (PL) composite and were loaded with KAZ3 (Anticancer chalcone) using coaxial electrospraying in a one step process.
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