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Introduction/background: Antimicrobial resistance (AMR) remains a critical global health issue, particularly in low- and middle-income countries like Nigeria. Colistin, a last-resort antibiotic for multidrug-resistant Gram-negative infections, has seen rising resistance, posing a significant challenge for neonatal sepsis management. This narrative review focuses on colistin resistance in neonates in Nigeria, addressing a critical public health threat. With rising antimicrobial resistance, understanding its epidemiology in vulnerable populations is essential for effective interventions.
Methods: A narrative mini-review was conducted, focusing on literature, systematic reviews, and global and national reports on colistin resistance in neonates. Data were synthesized from studies across Africa, with an emphasis on epidemiological insights and implications for public health in Nigeria.
Results: The review identified an increasing trend of colistin resistance in Gram-negative bacteria in neonates across Nigeria. Key findings highlight the presence of mobile colistin resistance (MCR) genes, such as mcr-1, in clinical isolates from neonates, despite limited exposure to colistin. The analysis also emphasized the limitations in screening practices and gaps in neonatal AMR surveillance in Nigeria. The results suggest that inadequate antimicrobial stewardship, overuse of antibiotics, and poor healthcare infrastructure contribute to the rapid emergence of colistin resistance in neonates.
Conclusion: Colistin resistance in neonates poses a grave threat to public health. Addressing this issue requires urgent improvements in antimicrobial stewardship, neonatal care, and AMR surveillance systems. Strengthening laboratory capacities, improving infection prevention practices, and global cooperation are critical to mitigating the spread of colistin-resistant infections in neonates and reducing mortality in low-resource settings.
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http://dx.doi.org/10.1080/07853890.2025.2536197 | DOI Listing |
Anal Bioanal Chem
September 2025
Tianjin Key Laboratory of Risk Assessment and Control Technology for Environment and Food Safety, Military Medical Sciences Academy, Tianjin, 300050, China.
Rapid, low-cost, and visual nucleic acid detection methods are highly attractive for curbing colistin resistance spread through the food chain. CRISPR/Cas12a combined with recombinase-aided amplification (RAA) offers a one-pot, aerosol-free approach for visual detection. However, traditional one-pot systems often run Cas12a trans-cleavage in a buffer suitable for RAA, thus limiting Cas12a cleavage efficiency.
View Article and Find Full Text PDFEvol Med Public Health
July 2025
Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA, USA.
Background And Objectives: Copper is an essential micronutrient and a widely used antimicrobial, yet its widespread application may accelerate microbial resistance. We investigated how long-term copper (II) sulfate (CuSO₄) exposure drives genetic and phenotypic changes in , focusing on survival, resistance mechanisms, and antibiotic cross-resistance.
Methodology: Fifty populations were evolved for 55 days under progressively increasing CuSO₄ concentrations.
J Appl Microbiol
September 2025
Sivas Cumhuriyet University, Faculty of Medicine, Department of Medical Microbiology, 58140 Sivas, Türkiye.
Aims: The increasing antimicrobial resistance, particularly in Acinetobacter baumannii, complicates the treatment of infections, leading to higher morbidity, mortality, and economic costs. Herein, we aimed to determine the in vitro antimicrobial, synergistic, and antibiofilm activities of colistin (COL), meropenem, and ciprofloxacin antibiotics, and curcumin, punicalagin, geraniol (GER), and linalool (LIN) plant-active ingredients alone and in combination against 31 multidrug-resistant (MDR) A. baumannii clinical isolates.
View Article and Find Full Text PDFJ Microbiol Immunol Infect
August 2025
Division of Infectious Diseases and Tropical Medicine, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan. Electronic address:
Background: Acinetobacter seifertii, a recently identified member of the Acinetobacter calcoaceticus-Acinetobacter baumannii (Acb) complex, has emerged as a cause of severe human infections. It is closely related to Acinetobacter nosocomialis, a major pathogen of the Acb complex. Here, we aimed to explore the clinical and molecular differences between these two species.
View Article and Find Full Text PDFJ Glob Antimicrob Resist
September 2025
Key Laboratory of Jilin Province for Zoonosis Prevention and Control, Changchun Veterinary Research Institute, Chinese Academy of Agriculture Sciences, Changchun, Jilin 130122, China. Electronic address:
Objectives: The usage of cephalosporins (CEFs) and co-existence of extended-spectrum β-lactamase (ESBL) gene bla in the same host may promote the prevalence of colistin (CST) resistance gene mcr-1. This study aims to investigate the underlying mechanisms how the mcr-1 and bla demonstrate significant co-occurrence in Escherichia coli (E. coli).
View Article and Find Full Text PDF