In vitro interaction between Agrimonia eupatoria L.: Extracts and antibiotic

Muruzovic, Z Mirjana; Mladenović, Katarina G.; Stefanović, Olgica D.; Zugic-Petrovic, K Tanja; Čomić, R Ljiljana

doi:10.5937/kgjsci1739157m

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…The water alcohol extract from various parts of the plant Passi ora cincinnata showed antagonistic effects with ampicillin on Staphylococcus aureus and E. coli (Siebra et al, 2018). Furthermore, certain types of Agrimonia eupatoria L. extracts showed antagonistic effects on ampicillin activity when tested for E. coli (Muruzović et al, 2017). Although Streptococcus pyogenes is resistant to ampicillin (Evans et al, 1994), this study revealed that it is more sensitive to a combination of ampicillin and high concentrations of PCN.…”

Section: Discussionmentioning

confidence: 71%

“…This nding was quite clear when combining a low concentration of PCN with cefotaxime. Matrine agent showed no effect on the antibacterial activity of cefotaxime against Klebsiella pneumoniae in comparison with the synergistic effects of baicaleine and clavulanic acid (Ibrahim et al, 2000).Combination of ampicillin with the water extract of Agrimonia eupatoria L. exhibited no antibacterial effects on P. aeruginosa (Muruzović et al, 2017).…”

Section: Discussionmentioning

confidence: 94%

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Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

AL-Janabi

Mohamed

2022

Preprint

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Pyocyanin (PCN) is a blue–green pigment mainly produced by Pseudomonas aeruginosa. It has antimicrobial effects on a variety of organisms. Ampicillin (AMP) and cefotaxime (CTX) are widely used against bacterial pathogens as important antibacterial agents. The effect of PCN on the antibacterial action of AMP and CTX has been studied. PCN from P. aeruginosa was extracted by chloroform method. Two PCN concentrations (2 and 4 µg/ml) were combined separately with a variety of AMP and CTX concentrations. Change in the antibacterial activity of AMP and CTX against 14 isolated pathogenic bacteria after combination has been investigated. The antibacterial activity of AMP decreased against 7 bacterial isolates when mixed with 4 µg/ml of PCN, while this activity increased against the majority of bacteria after mixing with 2 µg/ml. CTX activity was also reduced against 12 bacterial isolates by 4 µg/ml of PCN, while it was not generally affected by 2 µg/ml. in conclusion; PCN had variable effects on the antibacterial activity of AMP and CTX, which varied mainly between decreased activity and absence of effects. A low concentration of PCN was more effective in increasing the action of AMP, but had no effect on the action of CTX.

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Section: Discussionmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 94%

Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

AL-Janabi

Mohamed

2022

Preprint

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“…Antagonistic activity determined by Str. uberis was also reported for several cheese isolates from Serbia, and the authors report that these isolates are also susceptible to antibiotics [49].…”

Section: Streptococcus Uberis and Streptococcus Parauberismentioning

confidence: 70%

The Ambiguous Nature of some Non-Starter Lactic Acid Bacteria Actively Participating in Cheese Ripening

Dimov

2023

Preprint

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This mini-review deals with some non-starter lactic acid bacteria (NSLAB) species with a controversial nature known to be both human and animal pathogens but also health-promoting and probiotic. The focus is put on Lactococcus garvieae, two Streptococcus species (Str. uberis and Str. parauberis), four Weissella species (W. hellenica, W. confusa, W. paramesenteroides and W. cibaria) and Mammalicoccus sciuri which worldwide are often found within the microbiotas of different kinds of cheese, mainly traditional artisanal ones made from raw milk and/or relying on environmental bacteria for their ripening. Based on literature data, their virulence and health-promoting effects are examined, and some of the mechanisms of these actions are investigated. Additionally, their possible roles in cheese ripening are also discussed. The analysis so far showed that, in general, the pathogenic and the beneficial strains, despite belonging to the same species, show pretty different genetic constitutions. Yet, when the safety of a given strain is assessed, genomic analysis on its own is not enough, and a polyphasic approach is needed including additional physiological and functional tests.

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Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

AL-Janabi,

Mohamed

2023

Reviews and Research in Medical Microbiology

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Pyocyanin (PCN) is a blue-green pigment mainly produced by Pseudomonas aeruginosa. It has antimicrobial effects on a variety of organisms. Ampicillin (AMP) and cefotaxime (CTX) are widely used against bacterial pathogens as important antibacterial agents. The effect of PCN on the antibacterial action of AMP and CTX has been studied. PCN from P. aeruginosa was extracted by chloroform method. Two PCN concentrations (2 and 4 μg/ml) were combined separately with a variety of AMP and CTX concentrations. Change in the antibacterial activity of AMP and CTX against 14 isolated pathogenic bacteria after combination has been investigated. The antibacterial activity of AMP decreased against seven bacterial isolates when mixed with 4 μg/ml of PCN, while this activity increased against the majority of bacteria after mixing with 2 μg/ml. CTX activity was also reduced against 12 bacterial isolates by 4 μg/ml of PCN, whereas it was not generally affected by 2 μg/ml. In conclusion; PCN had variable effects on the antibacterial activity of AMP and CTX, which varied mainly between decreased activity and absence of effects. A low concentration of PCN was more effective in increasing the action of AMP but had no effect on the action of CTX.

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In vitro interaction between Agrimonia eupatoria L.: Extracts and antibiotic

Cited by 4 publications

References 13 publications

Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

The Ambiguous Nature of some Non-Starter Lactic Acid Bacteria Actively Participating in Cheese Ripening

Potential effects of pyocyanin on the antibacterial action of ampicillin and cefotaxime against human pathogenic bacteria

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