Journals / Türk Mikrobiyoloji Cemiyeti Dergisi / 2019 / Cilt: 49 - Sayı: 2

In vitro Evaluation of Carvacrol and Colistin Combination Against Colistin Resistant Acinetobacter baumannii Strains

Kolistin Dirençli Acinetobacter baumannii Suşlarına Karşı Karvakrol ile Kolistin Kombinasyonunun in vitro Değerlendirilmesi

Pages
67–73
Publication Date
2022-11-03
DOI
—
🏛️Bibliographic metadata and full text access for this article are provided via DergiPark.
DergiPark Record ↗
✨

AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

In other words, carvacrol caused a decrease in colistin resistance by increasing antibacterial activity of colistin.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Objective: Today, plant-based active agents with antimicrobial activity are being investigated by many researchers to overcome the problem of resistant bacteria.
📊
Key Findings & Data:Results: In the study, the antimicrobial activity of carvacrol against eight A. baumannii strains tested was determined within the range of MIC values of 64-128 µg/ml.
💡
Conclusion & Impact:In other words, carvacrol caused a decrease in colistin resistance by increasing antibacterial activity of colistin.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Objective: Today, plant-based active agents with antimicrobial activity are being investigated by many researchers to overcome the problem of resistant bacteria. In this study, the activity of carvacrol and colistin combination against colistin- resistant Acinetobacter baumannii strains were evaluated. Method: In order to determine the antimicrobial activity of carvacrol and colistin against eight A. baumannii strains, the minimum inhibitory concentrations (MIC) were determined by broth microdilution method. Combined activities of colistin and carvacrol were studied with Checkerboard Synergy Test. Results: In the study, the antimicrobial activity of carvacrol against eight A. baumannii strains tested was determined within the range of MIC values of 64-128 µg/ml. As a result of the combined activity of colistin and carvacrol, the synergistic effect was found in five of eight strains. The FICI values were 0.5 for two strains, 0.375 for the other two strains and 0.25 for one. Additive effects, and FICI values of 1, 0.625 and 0.53, were obtained in the other three A. baumannii strains. Conclusion: According to our results, carvacrol showed antibacterial activity against A. baumannii strains. When combined with colistin, the synergistic effect was determined in five of the eight strains and the additive effect was found in the remaining three. In other words, carvacrol caused a decrease in colistin resistance by increasing antibacterial activity of colistin.

Özet

Amaç: Günümüzde birçok araştırıcı dirençli bakteri sorununun üstesinden gelmek amacıylaantimikrobiyal aktiviteye sahip bitki kaynaklı etken maddeler üzerine çalışmaktadır. Buçalışmada kolistin dirençli Acinetobacter baumannii suşlarına karşı karvakrol ile kolistinkombinasyonunun aktivitesi değerlendirilmiştir.Yöntem: Sekiz adet A. baumannii suşu üzerine karvakrol ve kolistinin antimikrobiyalaktivitelerini saptamak amacıyla sıvı mikrodilüsyon testi yapılarak Minimum İnhibisyonKonsantrasyonları belirlenmiştir. Kolistin ve karvakrolün kombinasyon aktiviteleri ise DamaTahtası (Checkerboard) Sinerji Testi ile çalışılmıştır.Bulgular: Çalışmada, test edilen sekiz adet A. baumannii suşuna karşı karvakrolünantimikrobiyal aktivitesi 64-128 µg/ml MİK değerleri aralığında saptanmıştır. Kolistin vekarvakrolün kombinasyon aktivitesi sonucunda ise sekiz suşun beşinde sinerjistik etkisaptanmıştır. İki suşta 0.5, diğer iki suşta 0.375 ve bir suşta ise 0.25 FİKİ değerleri eldeedilmiştir. Diğer üç A. baumannii suşunda ise 1, 0.625 ve 0.53 FİKİ değerleri ile aditif etkitespit edilmiştir.Tartışma: Elde ettiğimiz sonuçlara göre, karvakrol A. baumannii suşlarına karşı antibakteriyelaktivite göstermiştir. Kolistin ile kombin edildiğinde sekiz suşun beşinde sinerjistik etkiüçünde ise aditif etki saptanmıştır. Yani karvakrol kolistinin antibakteriyel aktivitesindeartışa neden olarak kolistin direncinin düşmesini sağlamıştır.

🔖

Cite This Article

KÖSE, E. O., ÖZYURT, Ö. K. (2022). In vitro Evaluation of Carvacrol and Colistin Combination Against Colistin Resistant Acinetobacter baumannii Strains. Türk Mikrobiyoloji Cemiyeti Dergisi, Cilt: 49 - Sayı: 2, 67–73. https://ajindex.com/articles/635808

📄 Full Text PDF Viewer

📄

PDF görüntüleyici hazırlanıyor...

References (12)

  1. Tiwari V, Roy R, Tiwari M. Antimicrobial active herbal compounds against Acinetobacter baumannii and other pathogens. Front Microbiol. 2015;6:618
  2. Howard A, O’Donoghue M, Feeney A, Sleator RD. Acinetobacter baumannii: an emerging opportunistic pathogen. Virulence. 2012;3(3):243-50.
  3. Aleksic V, Mimica-Dukic N, Simin N, Stankovic Nedeljkovic N, Knezevic P. Synergistic effect of Myrtus communis L. essential oils and conventional antibiotics against multi-drug resistant Acinetobacter baumannii wound isolates. Phytomed. 2014;21:1666-74.
  4. Chusri S, Villanueva I, Voravuthikunchai SP, Davies J. Enhancing antibiotic activity: a strategy to control Acinetobacter infections. J Antimicrob Chemother. 2009;64(6):1203-11.
  5. Gordon NC, Wareham DW. Multidrug-resistant Acinetobacter baumannii: mechanisms of virulence and resistance. Int J Antimicrob Agents. 2010;35(3):219- 26.
  6. Cai Y, Chai D, Wang R, Liang B, Bai N. Colistin resistance of Acinetobacter baumannii: clinical reports, mechanisms and antimicrobial strategies. J Antimicrob Chemother. 2012;67(7):1607-15.
  7. Michalopoulos A, Falagas ME. Treatment of Acinetobacter infections. Expert Opin Pharmacother. 2010;11(5):779-88.
  8. Magiorakos A-P, Srinivasan A, Carey RB, et al. Multidrugresistant, extensively drug-resistant and pandrugresistant bacteria: an international expert proposal for interim standard definitions for acquired resistance. Clin Microbiol Infect. 2012;18(3):268-81.
  9. Ni W, Shao X, Di X, Cui J, Wang R, Liu Y. In vitro synergy of polymyxins with other antibiotics for Acinetobacter baumannii: a systematic review and meta-analysis. Int J Antimicrob Agents. 2015;45(1):8-18.
  10. Langeveld WT, Veldhuizen EJA, Burt SA. Synergy between essential oil components and antibiotics: a review. Crit Rev Microbiol. 2014;40(1):76-94.
  11. Betts JW, Wareham DW. In vitro activity of curcumin in combination with epigallocatechin gallate (EGCG) versus multidrug-resistant Acinetobacter baumannii. BMC Microbiol. 2014;14(1):172.
  12. Marchese A, Barbieri R, Cop