ArticlePloS one2025
Anti-staphylococcal activity, antibiotic-resistance modulation effects and action of Harungana madagascariensis (Hypericaceae) fruit extracts on the antioxidant system of multidrug-resistant Staphylococcus aureus.
Article in PloS one, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
2 citing papers in PubMed.
- Phytochemical Composition and Antipseudomonal Activity ofScientifica · 2026Article
- Article
Corrections and comments
- Erratum issued
Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Global public health is facing a real challenge due to infections caused by multidrug-resistant bacteria. Among these bacteria, Staphylococcus aureus is known to rapidly develops antibiotic resistance. This study aimed to evaluate the antibacterial potential of Harungana madagascariensis fruit extracts and their effects on the antioxidant system of multidrug-resistant Staphylococcus aureus. Moreover, the extracts were evaluated for their antibiotic-resistance modulation effects against some multidrug-resistant Staphylococcus aureus. The antibacterial activity of the extracts and their effect in combination with antibiotics were assessed using the micro-dilution method. The catalase activity was assessed by measuring the height of foam, whereas the lipid peroxidation was carried out through spectrophotometric quantification of malondialdehyde. The phytochemical analysis of extracts was carried out using qualitative and quantitative standard assays. The tested extracts showed antibacterial activities, with minimum inhibitory concentrations ranging from 32 to 2048 μg/mL. The most active extract (hexane extract) has inhibited the catalase activity and induced the lipid peroxidation in S. aureus DO18SA, indicating its ability to interact with the antioxidant system of the bacteria. Moreover, the dichloromethane/methanol extract increased by 2-128-fold the activity of levofloxacin, ampicillin, and cefotaxime against selected multidrug-resistant S. aureus. It also showed synergistic effect with cefotaxime against D051SA. Alkaloids, triterpenes, and phenols were detected in all the extracts, whereas the other phytochemical classes were selectively distributed. The methanol extract had the highest phenolic content (142.20 ± 16.75 mg GAE/g of extract). Overall, the findings of this study suggest that extracts of Harungana madagascariensis fruits could be valuable sources of new agents for treating multidrug-resistant Staphylococcus aureus infections.
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