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Macrolides reduce exacerbations when added to inhaled therapy in severe asthma. However, there is little published evidence for effectiveness in patients treated with biologics. We conducted a retrospective audit of all patients who started azithromycin while on biologics in our centre. Compared with those that did not start azithromycin, these individuals had more exacerbations and a phenotype of chronic bronchitis and/or frequent purulent exacerbations. The addition of azithromycin to biologics was associated with reduced annual rates of steroid-treated and antibiotic-treated exacerbations and improved symptom scores (Asthma Control Questionnaire-5) but not with any improvement in lung function. Data support testing azithromycin in clinical trials in patients on biologics with residual exacerbations.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11877106 | PMC |
http://dx.doi.org/10.1136/thorax-2024-221977 | DOI Listing |
Bioorg Chem
September 2025
Department of Medicinal Chemistry, Shandong Key Laboratory of Druggability Optimization and Evaluation for Lead Compounds, School of Pharmaceutical Sciences, Cheeloo College of Medicine, Shandong University, Jinan 250012, Shandong, PR China. Electronic address:
A series of novel 3,3-dimethyl-2,3,4,9-tetrahydro-1H-carbazole derivatives were rationally designed, synthesized and evaluated for their biological activity as AcrB inhibitors. The compounds were assessed for their antibiotic potentiating effects, followed by evaluation of Nile Red efflux inhibition, and off-target effects including activity on the outer and inner bacterial membranes. Ten compounds potentiated antibiotic activity at sub-inhibitory concentrations, reducing the minimum inhibitory concentrations (MICs) of at least one of the tested antibiotics by at least 8-fold, with three derivatives (7c, 11g, and 11i) achieving 32-fold MIC reductions at 128 μg/mL.
View Article and Find Full Text PDFRev Peru Med Exp Salud Publica
August 2025
Laboratorio de Farmacología y Toxicología Veterinaria, Facultad de Medicina Veterinaria, Universidad Nacional Mayor de San Marcos. Lima, Perú.
Background: Motivation for the study. Campylobacter coli, a bacterium that causes gastroenteritis in humans through the consumption of contaminated chicken meat, has shown an increase in antibiotic resistance worldwide. In Peru, information on this is scarce, so we proposed to determine resistance and minimum inhibitory concentration (MIC) using three phenotypic methods.
View Article and Find Full Text PDFPeerJ
September 2025
Research Unit in Microbial Food Safety and Antimicrobial Resistance, Department of Veterinary Public Health, Faculty of Veterinary Science, Chulalongkorn University, Bangkok, Thailand.
In Southeast Asia, most antimicrobial resistance (AMR) data on have been generated at the phenotypic level, while insights into the genetic characteristics of AMR and virulence genes remain limited. This study aimed to further characterize AMR isolates carrying plasmid-associated virulence genes in Thailand and neighboring countries. A total of 366 isolates were collected from pigs ( = 265), pork ( = 69), and humans ( = 32) across Thailand, Lao People's Democratic Republic, Cambodia, and Myanmar.
View Article and Find Full Text PDFPathogens
July 2025
Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China.
A strain isolated from the blood of a patient in Zhejiang Province, China, was analysed using whole-genome sequencing and tested for antimicrobial resistance. The isolated strain was identified as serotype 2, and classified to ST25 on multilocus sequence typing (MLST). The minimum core genome group of the strain was identified as Group 4, and multilocus variable-number tandem-repeat analysis (MLVA) assigned it as type 2, 4.
View Article and Find Full Text PDFToxicon
August 2025
Neuroanatomy and Neurotrauma Research Laboratories, Department of Anatomy, Faculty of Basic Medical Sciences, University of Ibadan, Ibadan, Oyo State, 20005, Nigeria.
Aflatoxin B (AFB) is a mycotoxin known for its liver toxicity and cancer risk, as well as neurotoxic effects causing motor and cognitive issues in humans and animals. Ongoing research into protecting against AFB damage has recently focused on antioxidant and anti-inflammatory agents. Gallic acid (GA), a low molecular weight triphenolic acid, demonstrates notable anti-oxidative and anti-inflammatory activities.
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