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Rodrigues FAF, Soares Bazzolli DM, Diaz-Muñoz G, Rossi CC, Alves Nogueira Diaz M. Topical antimicrobial formulations using medicinal plant-derived essential oils targeting methicillin resistant Staphylococcus aureus. Nat Prod Res 2025; 39:665-673. [PMID: 38043125 DOI: 10.1080/14786419.2023.2287169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 12/05/2023]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) causes a variety of healthcare-associated and community-acquired infections. Due to limited availability of effective antimicrobials for treating MRSA infections, there is a growing need to explore alternative therapeutic approaches. Here, the antimicrobial activities of 19 oils, popularly used for their medicinal properties, were tested against MRSA USA300. Oils obtained from cinnamon, clove, tangerine, and coriander showed the most promising activities, demonstrating bactericidal, anti-adhesive and anti-biofilm activities, and synergistic properties with common antibiotics. Given that clove and cinnamon oils showed the best activities, they were incorporated into topical formulations. Not only did the formulations with oils maintain antimicrobial and anti-adhesive activities, but their anti-biofilm property was potentiated. Tests on Galleria mellonella larvae suggested that the formulation is non-toxic. The formulations proposed here are a great alternative for the decolonisation of surfaces containing MRSA and can help circumventing antimicrobial resistance, a growing threat in the hospital environment.
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Affiliation(s)
| | - Denise Mara Soares Bazzolli
- Instituto de Biotecnologia Aplicado à Agropecuária - BIOAGRO, Universidade Federal de Viçosa, Viçosa, MG, Brazil
| | - Gaspar Diaz-Muñoz
- Departmento de Química, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil
| | - Ciro César Rossi
- Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, MG, Brazil
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Gao P, Nasution AK, Ono N, Kanaya S, Altaf-Ul-Amin M. Investigating Potential Anti-Bacterial Natural Products Based on Ayurvedic Formulae Using Supervised Network Analysis and Machine Learning Approaches. Pharmaceuticals (Basel) 2025; 18:192. [PMID: 40006005 PMCID: PMC11859686 DOI: 10.3390/ph18020192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2024] [Revised: 01/16/2025] [Accepted: 01/27/2025] [Indexed: 02/27/2025] Open
Abstract
Objectives: This study implements a multi-dimensional methodology to systematically identify potential natural antibiotics derived from the medicinal plants utilized in Ayurvedic practices. Methods: Two primary analytical techniques are employed to explore the antibiotic potential of the medicinal plants. The initial approach utilizes a supervised network analysis, which involves the application of distance measurement algorithms to scrutinize the interconnectivity and relational patterns within the network derived from Ayurvedic formulae. Results: 39 candidate plants with potential natural antibiotic properties were identified. The second approach leverages advanced machine learning techniques, particularly focusing on feature extraction and pattern recognition. This approach yielded a list of 32 plants exhibiting characteristics indicative of natural antibiotics. A key finding of this research is the identification of 17 plants that were consistently recognized by both analytical methods. These plants are well-documented in existing literature for their antibacterial properties, either directly or through their bioactive compounds, which suggests a strong validation of the study's methodology. By synergizing network analysis with machine learning, this study provides a rigorous and multi-faceted examination of Ayurvedic medicinal plants, significantly contributing to the identification of natural antibiotic candidates. Conclusions: This research not only reinforces the potential of traditional medicine as a source for new therapeutics but also demonstrates the effectiveness of combining classical and contemporary analytical techniques to explore complex biological datasets.
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Affiliation(s)
| | | | | | | | - Md. Altaf-Ul-Amin
- Graduate School of Science and Technology, Nara Institute of Science and Technology (NAIST), Ikoma 630-0101, Nara, Japan; (P.G.); (A.K.N.); (N.O.); (S.K.)
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3
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Cheng Y, Fu Y, Gu D, Huang Y, Lu Y, Liu Y, Li X, Yao X, Zhang X, Jian W, Liu P, Wu H, Li Y. Seasonal Variation in Chemical Composition and Antioxidant and Antibacterial Activity of Essential Oil from Cinnamomum cassia Leaves. PLANTS (BASEL, SWITZERLAND) 2024; 14:81. [PMID: 39795342 PMCID: PMC11723029 DOI: 10.3390/plants14010081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2024] [Revised: 12/23/2024] [Accepted: 12/27/2024] [Indexed: 01/13/2025]
Abstract
Cinnamomum cassia has been extensively utilized in traditional medicine systems worldwide. The essential oil (EO) content and composition are influenced by various external and internal factors, such as climate and harvest season, making it vital to determine the optimal harvest period for high-quality EO production. This study is the first to evaluate the chemical profiles, as well as the antioxidant and antibacterial activities, of C. cassia leaf oil across the four seasons. GC-MS and FTIR analyses revealed significant seasonal variations in the components. Spring and autumn leaf oils contained the highest EO (2.20% and 1.95%, respectively) and trans-cinnamaldehyde (92.59% and 91.10%, respectively). Temperature and humidity primarily affected EO and trans-cinnamaldehyde accumulation. C. cassia leaf oil demonstrated the strongest antibacterial activity, with a minimum inhibitory concentration (MIC) of 0.25 mg/mL against S. aureus and L. monocytogenes for the spring oil. The MICs for the other three seasonal samples were 0.5 mg/mL for S. aureus, M. luteus, and L. monocytogenes, and 1.0 mg/mL for P. putida. The minimum bactericidal concentration (MBC) of the EOs across all seasons against S. aureus ranged from 0.5 to 1 mg/mL. Winter leaf oil exhibited high antioxidant activity, primarily due to the presence of cis-cinnamaldehyde, caryophyllene, humulene, alloaromadendrene, γ-muurolene, cis-bisabolene, o-methoxycinnamaldehyde, and phenolics. This study provides essential data and valuable references for optimizing resource utilization and determining the ideal harvest time for C. cassia leaves.
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Affiliation(s)
- Yanrong Cheng
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Ying Fu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Dingze Gu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Yan Huang
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Yongqi Lu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Yujie Liu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Xiulan Li
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Xinyue Yao
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Xinxuan Zhang
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Wanying Jian
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
| | - Peiwei Liu
- Hainan Branch of the Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Haikou 570311, China;
| | - Hong Wu
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
- Medicinal Plants Research Center, South China Agricultural University, Guangzhou 510642, China
| | - Yanqun Li
- Guangdong Key Laboratory for Innovative Development and Utilization of Forest Plant Germplasm, South China Agricultural University, Guangzhou 510642, China; (Y.C.); (Y.F.); (D.G.); (Y.H.); (Y.L.); (Y.L.); (X.L.); (X.Y.); (X.Z.); (W.J.)
- Medicinal Plants Research Center, South China Agricultural University, Guangzhou 510642, China
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4
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Gheorghe-Irimia RA, Tăpăloagă D, Tăpăloagă PR, Ghimpețeanu OM, Tudor L, Militaru M. Spicing Up Meat Preservation: Cinnamomum zeylanicum Essential Oil in Meat-Based Functional Foods-A Five-Year Review. Foods 2024; 13:2479. [PMID: 39200406 PMCID: PMC11353328 DOI: 10.3390/foods13162479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 07/31/2024] [Accepted: 08/05/2024] [Indexed: 09/02/2024] Open
Abstract
Today, in the modern consumer era, we are facing a significant change in terms of preferences and behaviour. This tendency is not only a basic desire, but rather a significant social and cultural movement that exerts a tremendous influence on the food industry and correlated sectors. In this direction, food authorities and experts have thoroughly evaluated the practicality of employing natural preservation methods to enhance the quality and safety of foodstuffs, while preserving their nutritional and sensory attributes. Given this context, the development of meat products enhanced with Cinnamomum zeylanicum essential oil (CZEO) poses promising avenues, such as extended shelf-life due to its antimicrobial, antifungal, and antioxidant properties. CZEO also has many health benefits, rendering it as a promising ingredient in functional meat product formulations. Conversely, challenges such as higher associated costs, sensory interactions, and variability arise. Hence, the aim of this review is to offer a novel critical perspective on CZEO's potential application as a functional ingredient in meat products formulations and to address the inherent associated challenges, based on the last five years of scholarly publications.
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Affiliation(s)
- Raluca-Aniela Gheorghe-Irimia
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine Bucharest, 050097 Bucharest, Romania; (R.-A.G.-I.); (O.-M.G.); (L.T.); (M.M.)
| | - Dana Tăpăloagă
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine Bucharest, 050097 Bucharest, Romania; (R.-A.G.-I.); (O.-M.G.); (L.T.); (M.M.)
| | - Paul-Rodian Tăpăloagă
- Faculty of Animal Productions Engineering and Management, University of Agronomic Sciences and Veterinary Medicine Bucharest, 011464 Bucharest, Romania;
| | - Oana-Mărgărita Ghimpețeanu
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine Bucharest, 050097 Bucharest, Romania; (R.-A.G.-I.); (O.-M.G.); (L.T.); (M.M.)
| | - Laurențiu Tudor
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine Bucharest, 050097 Bucharest, Romania; (R.-A.G.-I.); (O.-M.G.); (L.T.); (M.M.)
| | - Manuella Militaru
- Faculty of Veterinary Medicine, University of Agronomic Sciences and Veterinary Medicine Bucharest, 050097 Bucharest, Romania; (R.-A.G.-I.); (O.-M.G.); (L.T.); (M.M.)
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Scheau C, Pop CR, Rotar AM, Socaci S, Mălinaș A, Zăhan M, Coldea ȘD, Pop VC, Fit NI, Chirilă F, Criveanu HR, Oltean I. The Influence of Physical Fields (Magnetic and Electric) and LASER Exposure on the Composition and Bioactivity of Cinnamon Bark, Patchouli, and Geranium Essential Oils. PLANTS (BASEL, SWITZERLAND) 2024; 13:1992. [PMID: 39065519 PMCID: PMC11281253 DOI: 10.3390/plants13141992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 07/18/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024]
Abstract
In recent years, essential oils (EOs) have received increased attention from the research community, and the EOs of cinnamon, patchouli, and geranium have become highly recognized for their antibacterial, antifungal, antiviral, and antioxidant effects. Due to these properties, they have become valuable and promising candidates for addressing the worldwide threat of antimicrobial resistance and other diseases. Simultaneously, studies have revealed promising new results regarding the effects of physical fields (magnetic and electric) and LASER (MEL) exposure on seed germination, plant growth, biomass accumulation, and the yield and composition of EOs. In this frame, the present study aims to investigate the influence of MEL treatments on cinnamon, patchouli, and geranium EOs, by specifically examining their composition, antimicrobial properties, and antioxidant activities. Results showed that the magnetic influence has improved the potency of patchouli EO against L. monocytogenes, S. enteritidis, and P. aeruginosa, while the antimicrobial activity of cinnamon EO against L. monocytogenes was enhanced by the electric and laser treatments. All exposures have increased the antifungal effect of geranium EO against C. albicans. The antioxidant activity was not modified by any of the treatments. These findings could potentially pave the way for a deeper understanding of the efficiency, the mechanisms of action, and the utilization of EOs, offering new insights for further exploration and application.
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Affiliation(s)
- Camelia Scheau
- PhD School of Agricultural Engineering Sciences, USAMV Cluj-Napoca, 3-5, Mănăştur Street, 400372 Cluj-Napoca, Romania;
| | - Carmen Rodica Pop
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 64, Floresti Street, 400509 Cluj-Napoca, Romania; (C.R.P.); (A.M.R.); (S.S.)
| | - Ancuța Mihaela Rotar
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 64, Floresti Street, 400509 Cluj-Napoca, Romania; (C.R.P.); (A.M.R.); (S.S.)
| | - Sonia Socaci
- Department of Food Science, Faculty of Food Science and Technology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 64, Floresti Street, 400509 Cluj-Napoca, Romania; (C.R.P.); (A.M.R.); (S.S.)
| | - Anamaria Mălinaș
- Department of Environmental Protection and Engineering, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, 3-5, Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Marius Zăhan
- Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5, Mănăştur Street, 400372 Cluj-Napoca, Romania; (M.Z.); (Ș.D.C.)
| | - Ștefania Dana Coldea
- Faculty of Animal Science and Biotechnology, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5, Mănăştur Street, 400372 Cluj-Napoca, Romania; (M.Z.); (Ș.D.C.)
| | - Viorel Cornel Pop
- Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine, 3-5, Mănăştur Street, 400372 Cluj-Napoca, Romania
| | - Nicodim Iosif Fit
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5, Mănăstur Street, 400372 Cluj-Napoca, Romania; (N.I.F.); (F.C.)
| | - Flore Chirilă
- Department of Paraclinical Sciences, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5, Mănăstur Street, 400372 Cluj-Napoca, Romania; (N.I.F.); (F.C.)
| | - Horia Radu Criveanu
- Faculty of Horticulture, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 3-5, Mănăstur Street, 400372 Cluj-Napoca, Romania;
| | - Ion Oltean
- Department of Plant Protection, University of Agricultural Sciences and Veterinary Medicine of Cluj-Napoca, 3-5, Mănăstur Street, 400372 Cluj-Napoca, Romania;
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de Souza HF, dos Santos FR, Cunha JS, Pacheco FC, Pacheco AFC, Soutelino MEM, Martins CCN, Andressa I, Rocha RDS, da Cruz AG, Paiva PHC, Brandi IV, Kamimura ES. Microencapsulation to Harness the Antimicrobial Potential of Essential Oils and Their Applicability in Dairy Products: A Comprehensive Review of the Literature. Foods 2024; 13:2197. [PMID: 39063282 PMCID: PMC11275287 DOI: 10.3390/foods13142197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Revised: 06/06/2024] [Accepted: 06/09/2024] [Indexed: 07/28/2024] Open
Abstract
This literature review explores cutting-edge microencapsulation techniques designed to enhance the antimicrobial efficacy of essential oils in dairy products. As consumer demand for natural preservatives rises, understanding the latest advancements in microencapsulation becomes crucial for improving the shelf life and safety of these products. The bibliometric analysis utilized in this review highlighted a large number of documents published on this topic in relation to the following keywords: essential oils, AND antimicrobials, AND dairy products, OR microencapsulation. The documents published in the last 11 years, between 2013 and 2023, showed a diversity of authors and countries researching this topic and the keywords commonly used. However, in the literature consulted, no study was identified that was based on bibliometric analysis and that critically evaluated the microencapsulation of essential oils and their antimicrobial potential in dairy products. This review synthesizes findings from diverse studies, shedding light on the various encapsulation methods employed and their impact on preserving the quality of dairy goods. Additionally, it discusses the potential applications and challenges associated with implementation in the dairy industry. This comprehensive analysis aims to provide valuable insights for researchers, food scientists, and industry professionals seeking to optimize the use of essential oils with antimicrobial properties in dairy formulations.
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Affiliation(s)
- Handray Fernandes de Souza
- Department of Food Engineering, School of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil; (H.F.d.S.); (R.d.S.R.)
| | - Fabio Ribeiro dos Santos
- Department of Food Technology, Federal University of Viçosa, University Campus, Viçosa 36570-900, MG, Brazil; (F.R.d.S.); (J.S.C.); (F.C.P.); (I.A.)
| | - Jeferson Silva Cunha
- Department of Food Technology, Federal University of Viçosa, University Campus, Viçosa 36570-900, MG, Brazil; (F.R.d.S.); (J.S.C.); (F.C.P.); (I.A.)
| | - Flaviana Coelho Pacheco
- Department of Food Technology, Federal University of Viçosa, University Campus, Viçosa 36570-900, MG, Brazil; (F.R.d.S.); (J.S.C.); (F.C.P.); (I.A.)
| | - Ana Flávia Coelho Pacheco
- Instituto de Laticínios Cândido Tostes, Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Lieutenant Luiz de Freitas, 116, Juiz de Fora 36045-560, MG, Brazil; (A.F.C.P.); (P.H.C.P.)
| | | | - Caio Cesar Nemer Martins
- Forest Engineering Department, Federal University of Viçosa, University Campus, Viçosa 36570-900, MG, Brazil;
| | - Irene Andressa
- Department of Food Technology, Federal University of Viçosa, University Campus, Viçosa 36570-900, MG, Brazil; (F.R.d.S.); (J.S.C.); (F.C.P.); (I.A.)
| | - Ramon da Silva Rocha
- Department of Food Engineering, School of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil; (H.F.d.S.); (R.d.S.R.)
| | - Adriano Gomes da Cruz
- Department of Food, Federal Institute of Science and Technology of Rio de Janeiro, Rio de Janeiro 20270-021, RJ, Brazil;
| | - Paulo Henrique Costa Paiva
- Instituto de Laticínios Cândido Tostes, Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG), Lieutenant Luiz de Freitas, 116, Juiz de Fora 36045-560, MG, Brazil; (A.F.C.P.); (P.H.C.P.)
| | - Igor Viana Brandi
- Institute of Agricultural Sciences, Federal University of Minas Gerais, Av. Universitária, 1000, Montes Claros 39404-547, MG, Brazil;
| | - Eliana Setsuko Kamimura
- Department of Food Engineering, School of Animal Science and Food Engineering, University of São Paulo, Av. Duque de Caxias Norte, 225, Pirassununga 13635-900, SP, Brazil; (H.F.d.S.); (R.d.S.R.)
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Almutairy B. Extensively and multidrug-resistant bacterial strains: case studies of antibiotics resistance. Front Microbiol 2024; 15:1381511. [PMID: 39027098 PMCID: PMC11256239 DOI: 10.3389/fmicb.2024.1381511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 06/11/2024] [Indexed: 07/20/2024] Open
Abstract
The development of antibiotic resistance compromises the effectiveness of our most effective defenses against bacterial infections, presenting a threat to global health. To date, a large number of research articles exist in the literature describing the case reports associated with extensively drug-resistant (XDR) and multidrug-resistant (MDR) bacterial strains. However, these findings are scattered, making it time-consuming for researchers to locate promising results and there remains a need for a comparative study to compile these case reports from various geographical regions including the Kingdom of Saudi Arabia. Additionally, no study has yet been published that compares the genetic variations and case reports of MDR and XDR strains identified from Saudi Arabia, the Middle East, Central Europe, and Asian countries. This study attempts to provide a comparative analysis of several MDR and XDR case reports from Saudi Arabia alongside other countries. Furthermore, the purpose of this work is to demonstrate the genetic variations in the genes underlying the resistance mechanisms seen in MDR and XDR bacterial strains that have been reported in Saudi Arabia and other countries. To cover the gap, this comprehensive review explores the complex trends in antibiotic resistance and the growing risk posed by superbugs. We provide context on the concerning spread of drug-resistant bacteria by analyzing the fundamental mechanisms of antibiotic resistance and looking into individual case reports. In this article, we compiled various cases and stories associated with XDR and MDR strains from Saudi Arabia and various other countries including China, Egypt, India, Poland, Pakistan, and Taiwan. This review will serve as basis for highlighting the growing threat of MDR, XDR bacterial strains in Saudi Arabia, and poses the urgent need for national action plans, stewardship programs, preventive measures, and novel antibiotics research in the Kingdom.
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Affiliation(s)
- Bandar Almutairy
- Department of Pharmacology, College of Pharmacy, Shaqra University, Shaqra, Saudi Arabia
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8
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Singh S, Chauhan SB, Gupta C, Singh I, Gupta A, Sharma S, Kawish SM, Rahman S, Iqbal M. Design and Characterization of Citronella Oil-Loaded Micro-Emulgel for the Treatment of Candida Albicans Infection. Gels 2023; 9:799. [PMID: 37888372 PMCID: PMC10606459 DOI: 10.3390/gels9100799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/28/2023] Open
Abstract
The purpose of the current study was to prepare and evaluate a citronella oil-loaded microemulsion-based micro-emulgel for the treatment of Candida albicans. The primary objective was to use the skin to transfer hydrophobic medications into the bloodstream. The formulation included cinnamon oil as an antifungal oil and citronella oil as an active pharmaceutical ingredient, respectively. Tween 80 and PEG 200 were used as the surfactant and co-surfactant, respectively, to create phase diagrams. Carbopol 940, one of the frequently used polymers, was investigated for its ability to prepare gel formulations. The optimized (F3) batch contained the highest percentage (87.05 ± 0.03%) of drug content and, according to the statistics provided, had the highest drug release rate of around 87.05% within 4 h. The Korsmeyer-Peppas model with n value of 0.82, which is in the range 0.5-1, had the highest r2 value, indicating that release following non-Fickian/anomalous diffusion provided a better dimension for all of the formulations. The optimized (F3) formulation had stronger antifungal activity in comparison to other formulations. This leads to the conclusion that citronella oil can be made into a micro-emulgel, which may improve its release in aqueous systems while maintaining a high level of drug release at the target site.
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Affiliation(s)
- Shambhvi Singh
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Shikha Baghel Chauhan
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Charu Gupta
- Amity Institute of Herbal Research & Studies, Amity University Noida, Noida, Uttar Pradesh 201313, India;
| | - Indu Singh
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Annie Gupta
- Amity Institute of Pharmacy, Amity University, Noida, Uttar Pradesh 201301, India; (S.S.)
| | - Shwetakshi Sharma
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard University, New Delhi, Delhi 110062, India
| | - S. M. Kawish
- Department of Pharmaceutics, School of Pharmaceutical Education and Research, Jamia Hamdard University, New Delhi, Delhi 110062, India
| | - Shakilur Rahman
- Department of Anesthesiology and Perioperative Medicine, University of Alabama at Birmingham, Birmingham, AL 35249-6810, USA
| | - Muzaffar Iqbal
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Romanescu M, Oprean C, Lombrea A, Badescu B, Teodor A, Constantin GD, Andor M, Folescu R, Muntean D, Danciu C, Dalleur O, Batrina SL, Cretu O, Buda VO. Current State of Knowledge Regarding WHO High Priority Pathogens-Resistance Mechanisms and Proposed Solutions through Candidates Such as Essential Oils: A Systematic Review. Int J Mol Sci 2023; 24:9727. [PMID: 37298678 PMCID: PMC10253476 DOI: 10.3390/ijms24119727] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
Combating antimicrobial resistance (AMR) is among the 10 global health issues identified by the World Health Organization (WHO) in 2021. While AMR is a naturally occurring process, the inappropriate use of antibiotics in different settings and legislative gaps has led to its rapid progression. As a result, AMR has grown into a serious global menace that impacts not only humans but also animals and, ultimately, the entire environment. Thus, effective prophylactic measures, as well as more potent and non-toxic antimicrobial agents, are pressingly needed. The antimicrobial activity of essential oils (EOs) is supported by consistent research in the field. Although EOs have been used for centuries, they are newcomers when it comes to managing infections in clinical settings; it is mainly because methodological settings are largely non-overlapping and there are insufficient data regarding EOs' in vivo activity and toxicity. This review considers the concept of AMR and its main determinants, the modality by which the issue has been globally addressed and the potential of EOs as alternative or auxiliary therapy. The focus is shifted towards the pathogenesis, mechanism of resistance and activity of several EOs against the six high priority pathogens listed by WHO in 2017, for which new therapeutic solutions are pressingly required.
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Affiliation(s)
- Mirabela Romanescu
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.R.); (A.L.); (B.B.); (A.T.); (G.D.C.)
- Faculty of Medicine, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.A.); (R.F.); (D.M.)
| | - Camelia Oprean
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania
- OncoGen Centre, County Hospital ‘Pius Branzeu’, Blvd. Liviu Rebreanu 156, 300723 Timisoara, Romania
| | - Adelina Lombrea
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.R.); (A.L.); (B.B.); (A.T.); (G.D.C.)
| | - Bianca Badescu
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.R.); (A.L.); (B.B.); (A.T.); (G.D.C.)
| | - Ana Teodor
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.R.); (A.L.); (B.B.); (A.T.); (G.D.C.)
| | - George D. Constantin
- Doctoral School, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.R.); (A.L.); (B.B.); (A.T.); (G.D.C.)
| | - Minodora Andor
- Faculty of Medicine, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.A.); (R.F.); (D.M.)
| | - Roxana Folescu
- Faculty of Medicine, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.A.); (R.F.); (D.M.)
| | - Delia Muntean
- Faculty of Medicine, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.A.); (R.F.); (D.M.)
- Multidisciplinary Research Center on Antimicrobial Resistance, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Corina Danciu
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Olivia Dalleur
- Louvain Drug Research Institute, Université Catholique de Louvain, Avenue Emmanuel Mounier 73, 1200 Brussels, Belgium
| | - Stefan Laurentiu Batrina
- Faculty of Agriculture, University of Life Sciences “King Mihai I” from Timisoara, Calea Aradului 119, 300645 Timisoara, Romania
| | - Octavian Cretu
- Faculty of Medicine, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania; (M.A.); (R.F.); (D.M.)
| | - Valentina Oana Buda
- Faculty of Pharmacy, “Victor Babeş” University of Medicine and Pharmacy, 2 Eftimie Murgu Street, 300041 Timisoara, Romania
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy, 2 Eftimie Murgu Square, 300041 Timisoara, Romania
- Ineu City Hospital, 2 Republicii Street, 315300 Ineu, Romania
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Celia JA, Resende O, Carocho M, Finimundy T, de Oliveira KB, Gomes FP, Quequeto WD, Barros L, Junior WNF. Drying kinetics of cinnamon ( Cinnamomum zeylanicum J. Presl) leaves: effects on individual volatile compounds and external color. JOURNAL OF ESSENTIAL OIL RESEARCH 2023. [DOI: 10.1080/10412905.2022.2160843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Juliana Aparecida Celia
- Federal Institute of Education, Science and Technology Goiano-Campus of Rio Verde, Rio Verde, Goiás, Brazil
| | - Osvaldo Resende
- Federal Institute of Education, Science and Technology Goiano-Campus of Rio Verde, Rio Verde, Goiás, Brazil
| | - Marcio Carocho
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Tiane Finimundy
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
| | - Kenia Borges de Oliveira
- Federal Institute of Education, Science and Technology Goiano-Campus of Rio Verde, Rio Verde, Goiás, Brazil
| | - Francileni Pompeu Gomes
- Federal Institute of Education, Science and Technology Goiano-Campus of Rio Verde, Rio Verde, Goiás, Brazil
| | - Wellytton Darci Quequeto
- Federal Institute of Education, Science and Technology Goiano-Campus of Rio Verde, Rio Verde, Goiás, Brazil
| | - Lillian Barros
- Centro de Investigação de Montanha (CIMO), Instituto Politécnico de Bragança, Campus de Santa Apolónia, Bragança, Portugal
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Kanaan MHG, Khalil ZK, Khashan HT, Ghasemian A. Occurrence of virulence factors and carbapenemase genes in Salmonella enterica serovar Enteritidis isolated from chicken meat and egg samples in Iraq. BMC Microbiol 2022; 22:279. [PMID: 36418940 PMCID: PMC9682753 DOI: 10.1186/s12866-022-02696-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 11/08/2022] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Food-borne infections mainly due to Salmonella enterica serovar Enteritidis (S. Enteritidis) are major concerns worldwide. S. Enteritidis isolates may serve as reservoirs for spreading antimicrobial drug resistance genes including carbapenemases. This study aimed to screen the occurrence of virulence factors, carbapenemases, and antibiotic resistance genes in S. Enteritidis isolated from chicken meat and eggs in Iraq. RESULTS In total, 1000 non-duplicated chicken meat and 1000 egg samples were collected during 2019-2020. Presumptive S. Enteritidis isolates were initially identified by standard bacteriology tests and then were confirmed using polymerase chain reaction (PCR). Carbapenem resistance was detected using the disk diffusion method. Virulence and carbapenemase genes were screened using the PCR method. In total, 100 (5.0%) S. Enteritidis isolates were identified from 2000 samples collected using phenotypic and molecular methods. These isolates were identified from 4.9% chicken meat (n = 49/1000) and 5.1% egg (n = 51/1000) samples, respectively. The most and the least susceptibility was found to gentamicin and ceftazidime antibiotics, respectively. The prevalence of different virulence factors were as follows: phoP/Q (40.0%), traT (30.0%), stn (22.0%), slyA (11.0%), and sopB (9.0%). Among 20 carbapenem-resistant S. Enteritidis isolates, the most predominant carbapenemase gene was blaIMP (35.0%, n = 7), followed by blaOXA-48-like (25.0%, n = 5), and blaNDM (10.0%, n = 2), while the blaKPC and blaVIM genes were not detected. The coexistence of blaIMP, blaOXA-48-like, and blaNDM genes was determined in two isolates. The prevalence of different antibiotic resistance genes were as follows: tetA (87.1%), tetB (87.1%), dfrA1 (77.6%), and sul1 (83.6%). CONCLUSION Considering the existence of carbapenem-resistant S. Enteritidis harboring different virulence and antibiotic resistance genes in chicken meat and egg samples, adherence to proper hygienic conditions should be considered.
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Affiliation(s)
- Manal Hadi Ghaffoori Kanaan
- grid.510261.10000 0004 7474 9372Department of Agriculture, Technical Institute of Suwaria, Middle Technical University, Baghdad, Iraq
| | - Zena Kassem Khalil
- grid.510261.10000 0004 7474 9372Optometry Department, Medical Technical Institute Al-Mansor, Middle Technical University, Baghdad, Iraq
| | - Hawazin Thamir Khashan
- grid.411498.10000 0001 2108 8169Department of Veterinary Public Health, Food Hygiene, College of Veterinary Medicine, University of Baghdad, Baghdad, Iraq
| | - Abdolmajid Ghasemian
- grid.411135.30000 0004 0415 3047Noncommunicable Diseases Research Center, Fasa University of Medical Sciences, Fasa, Iran
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Omer FH, Al-Khafaji NSK, Al-Alaq FT, Al-Dahmoshi HOM, Memariani M, Saki M. Synergistic effects of silybin and curcumin on virulence and carbapenemase genes expression in multidrug resistant Klebsiella oxytoca. BMC Res Notes 2022; 15:330. [PMID: 36273212 PMCID: PMC9588228 DOI: 10.1186/s13104-022-06172-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 08/10/2022] [Indexed: 12/31/2022] Open
Abstract
OBJECTIVE Silybin and curcumin have potential antimicrobial effects. This study aimed to evaluate the synergistic antimicrobial effects of silybin and curcumin on virulence and carbapenemase genes expression among multidrug-resistant (MDR) Klebsiella oxytoca. RESULTS A total of 70 MDR K. oxytoca (carrying blaIMP and blaOXA-48-like genes) were included. The antibiotic susceptibility and biofilm production of isolates were determined. The silybin and curcumin at concentrations 10-500 mg/mL alone and in combination were exposed to bacterial isolates in Mueller Hinton broth medium for 24 h. The expression of blaIMP, blaOXA-48-like, mrkA, pilQ, matB and fimA genes was evaluated using quantitative real-time polymerase chain reaction (qRT-PCR). The mean minimum inhibitory concentration (MIC) of curcumin and silybin were 250 mg/mL and 500 mg/mL, respectively. The anti-virulent effect of 100 mg/mL of silybin and curcumin was shown by significant reduction in the expression of fimA (2.1-fold, P < 0.0001) and mrkA (2.1 fold, P < 0.0001) genes. Moreover, these compounds significantly decreased the expression of blaIMP1 (3.2-fold, P < 0.0001) gene. Notably, there was no significant effect on pilQ, matB and blaOXA-48-like genes. The results showed that silybin and curcumin can be candidate as natural way for control the MDR virulent strains of K. oxytoca.
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Affiliation(s)
- Farah H. Omer
- grid.411848.00000 0000 8794 8152Department of Clinical Laboratory Science, College of Pharmacy, University of Mosul, Mosul, Iraq
| | - Noor S. K. Al-Khafaji
- grid.427646.50000 0004 0417 7786Department of Biology, College of Science, University of Babylon, Hilla, Iraq
| | - Farah Tareq Al-Alaq
- grid.427646.50000 0004 0417 7786Department of Biology, College of Science, University of Babylon, Hilla, Iraq
| | - Hussein O. M. Al-Dahmoshi
- grid.427646.50000 0004 0417 7786Department of Biology, College of Science, University of Babylon, Hilla, Iraq
| | - Mojtaba Memariani
- grid.411600.2Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Saki
- grid.411230.50000 0000 9296 6873Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran ,grid.411230.50000 0000 9296 6873Infectious Ophthalmologic Research Center, Imam Khomeini Hospital Clinical Research Development Unit, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
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13
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Tang PL, Cham XY, Hou X, Deng J. Potential use of waste cinnamon leaves in stirred yogurt fortification. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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In Silico Docking, Resistance Modulation and Biofilm Gene Expression in Multidrug-Resistant Acinetobacter baumannii via Cinnamic and Gallic Acids. Antibiotics (Basel) 2022; 11:antibiotics11070870. [PMID: 35884124 PMCID: PMC9311515 DOI: 10.3390/antibiotics11070870] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 06/23/2022] [Accepted: 06/24/2022] [Indexed: 11/25/2022] Open
Abstract
Despite the mounting global burden of antimicrobial resistance (AMR), the generation of new classes of effective antimicrobials still lags far behind. The interplay between multidrug resistance and biofilm formation in Acinetobacter baumannii has drastically narrowed the available therapeutic choices. The use of natural compounds holds promise as an alternate option for restoring the activity of existing antibiotics and attenuating virulence traits through reduced biofilm formation. This study aimed to evaluate the modulatory effect of combining cinnamic and gallic acids at ½MIC with various antibiotics against multidrug-resistant (MDR) A. baumannii clinical isolates as well as study the effect on the expression of the biofilm-associated genes (bap, csuE, ompA) via quantitative, real-time PCR. Combining cinnamic or gallic acid with imipenem, amikacin or doxycycline resulted in significant reduction of resistance (p < 0.05). On the contrary, no effect was recorded when both acids were combined with levofloxacin, and only cinnamic acid had a synergistic effect with colistin. The transcriptomic changes of biofilm-related genes in the presence of gallic acid at ½MIC were compared with untreated control samples. The fold expression values proved that gallic acid substantially down-regulated the respective genes in all five strong biofilm formers. Molecular docking studies of gallic and cinnamic acids on target genes revealed good binding affinities and verified the proposed mechanism of action. To the best of our knowledge, this is the first report on the effect of gallic acid on the expression of bap, csuE and ompA genes in A. baumannii, which may permit its use as an adjunct anti-virulence therapeutic strategy.
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15
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Marcondes P, Rosas GH, González MEL, Queiroz AAAD, Marques PS. Poly(vinyl alcohol)/poly(glycerol) dendrimer hydrogel mediated green synthesis of silver nanoparticles. POLIMEROS 2022. [DOI: 10.1590/0104-1428.20220025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Thirapanmethee K, Kanathum P, Khuntayaporn P, Huayhongthong S, Surassmo S, Chomnawang MT. Cinnamaldehyde: A plant-derived antimicrobial for overcoming multidrug-resistant Acinetobacter baumannii infection. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Cynometra cauliflora L.: An indigenous tropical fruit tree in Malaysia bearing essential oils and their biological activities. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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18
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Goodarzi R, Yousefimashouf R, Taheri M, Nouri F, Asghari B. Susceptibility to biocides and the prevalence of biocides resistance genes in clinical multidrug-resistant Pseudomonas aeruginosa isolates from Hamadan, Iran. Mol Biol Rep 2021; 48:5275-5281. [PMID: 34245410 DOI: 10.1007/s11033-021-06533-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/29/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND This study aimed to investigate the association between biocides' reduced susceptibility and the presence of efflux pump genes including cepA, qacEΔ1 and qacE in multidrug-resistant (MDR) Pseudomonas aeruginosa. METHODS AND RESULTS The MDR P. aeruginosa isolates were collected and identified from different clinical samples. The minimum inhibitory concentrations (MIC) of four biocides (chlorhexidine gluconate 1%, benzalkonium chloride 1%, Kohrsolin® extra, and SEPTI-Turbo) were determined by microbroth dilution with and without carbonyl cyanide m-chlorophenyl hydrazone (CCCP). Polymerase chain reaction (PCR) was performed for detecting the efflux pump genes. In total, 92 MDR P. aeruginosa isolates were collected. The reduced susceptibility (8-128 µg/ml) was seen against chlorhexidine gluconate 1%, benzalkonium chloride 1%, Kohrsolin® extra, and SEPTI-Turbo in 63 (68.5%), 59 (64.1%), 64 (69.6%), and 65 (70.6%) isolates, respectively. The Kohrsolin® extra was the most effective biocide. The cepA, qacE, and qacEΔ1 were detected in 56 (60.9%), 1 (1.1%), and 34 (36.9%) isolates, respectively. There was a significant association between the presence of biocide resistance genes and reduced susceptibility to studied biocides (P = 0.00001). The CCCP had no effect on benzalkonium chloride 1% and Kohrsolin® extra, but reduced the MICs of chlorhexidine gluconate 1% and SEPTI- Turbo by 2 to 128 fold. CONCLUSIONS The P. aeruginosa isolates exhibited varying degrees of tolerance to biocides. The cepA was the most prevalent gene. There was a significant connection between the occurrence of the efflux pump genes cepA and qacEΔ1 with reduced biocide susceptibility.
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Affiliation(s)
- Rezvan Goodarzi
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Rasoul Yousefimashouf
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Taheri
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Fatemeh Nouri
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Babak Asghari
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran.
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Ejikeugwu C, Nworie O, Saki M, Al-Dahmoshi HOM, Al-Khafaji NSK, Ezeador C, Nwakaeze E, Eze P, Oni E, Obi C, Iroha I, Esimone C, Adikwu MU. Metallo-β-lactamase and AmpC genes in Escherichia coli, Klebsiella pneumoniae, and Pseudomonas aeruginosa isolates from abattoir and poultry origin in Nigeria. BMC Microbiol 2021; 21:124. [PMID: 33882823 PMCID: PMC8059301 DOI: 10.1186/s12866-021-02179-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/30/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Gram-negative bacteria (GNB) including Escherichia coli, Pseudomonas aeruginosa, and Klebsiella pneumoniae represent the most relevant reservoir of resistance genes such as metallo-β-lactamase (MBL) and AmpC genes that give them the undue advantage to resist antimicrobial onslaught. This study aimed to investigate the occurrence of MBL (blaIMP-1, blaIMP-2, blaVIM-1, blaVIM-2) and AmpC (blaFOX, blaDHA, blaCMY, blaACC) resistance genes in aforementioned GNB collected from abattoir and poultry sources in Nigeria. RESULTS In total, 370 isolates were collected from abattoir tables (n = 130), anal region of cows (n = 120), and the cloacae of poultry birds (n = 120). The test isolates showed high rate of resistance to cephalosporins and carbapenems. The MBLs were phenotypically detected in 22 E. coli, 22 P. aeruginosa, and 18 K. pneumoniae isolates using combined disc test (CDT). However, only 11 E. coli, 24 P. aeruginosa, and 18 Klebsiella pneumoniae isolates were phenotypically confirmed to be AmpC producers using cefoxitin-cloxacillin double disk synergy test (CC-DDST). MBL encoding genes (particularly the blaIMP-1 genes and blaIMP-2 genes) were detected by polymerase chain reaction (PCR) in 12 (54.6%) E. coli, 15 (83.3%) K. pneumoniae, and 16 (72.7%) P. aeruginosa isolates. AmpC genes (particularly the blaCMY genes and blaFOX genes) were found in a total of 5 (29.4%) E. coli isolates, 5 (27.8%) isolates of K. pneumoniae, and 10 (41.7%) isolates of P. aeruginosa. CONCLUSIONS Our study showed the circulation of MBL and AmpC genes in GNB from abattoir and poultry origin in Nigeria. Adoption of regular control policies is necessary to reduce the spread of these species as soon as possible, especially in poultry and slaughterhouses.
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Affiliation(s)
- Chika Ejikeugwu
- Department of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria
| | - Okoro Nworie
- Department of Biological Sciences, Alex Ekwueme Federal University, Ndufu-Alike Ikwo, Ikwo, Nigeria
| | - Morteza Saki
- Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Hussein O M Al-Dahmoshi
- Biology Department, College of Science, University of Babylon, Hilla City, Babylon Province, Iraq
| | - Noor S K Al-Khafaji
- Biology Department, College of Science, University of Babylon, Hilla City, Babylon Province, Iraq
| | - Chika Ezeador
- Department of Medical Microbiology & Parasitology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Emmanuel Nwakaeze
- Department of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria
| | - Peter Eze
- Department of Environmental Health Science, Nnamdi Azikiwe University, Awka, Nigeria
| | - Eniola Oni
- Department of Microbiology, Federal University of Agriculture, Abeokuta, Nigeria
| | - Chidiebere Obi
- Department of Microbiology, Federal University, Birnin Kebbi, Nigeria
| | - Ifeanyichukwu Iroha
- Department of Applied Microbiology, Ebonyi State University, Abakaliki, Nigeria
| | - Charles Esimone
- Department of Pharmaceutical Microbiology and Biotechnology, Nnamdi Azikiwe University, Awka, Nigeria
| | - Michael U Adikwu
- Department of Pharmaceutics, University of Nigeria, Nsukka, Nigeria
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In vitro evaluation of the antibacterial effects of Cinnamomum zeylanicum essential oil against clinical multidrug-resistant Shigella isolates. Mol Biol Rep 2021; 48:2583-2589. [PMID: 33796990 DOI: 10.1007/s11033-021-06309-w] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Accepted: 03/19/2021] [Indexed: 01/14/2023]
Abstract
As there are little data about the antimicrobial effects of the cinnamon essential oils (EO) against multidrug-resistant (MDR) Shigella species, this study aimed to evaluate the antibacterial activities of Cinnamomum zeylanicum EO against the clinical MDR Shigella isolates. Totally 50 MDR Shigella isolates including 17 (34%) S. flexneri, 20 (40%) S. sonnei, and 13 (26%) S. boydii were collected. The isolates were identified by standard phenotypic and molecular methods. The MDR phenotypes were determined as resistant to three antibiotic classes using disc diffusion. The C. zeylanicum EO was analyzed by gas chromatography/mass spectrometry (GC/MS). The minimum inhibitory concentration (MIC) of cinnamon EO was evaluated by microtiter broth dilution. The most Shigella isolates 38% (n = 19) were resistant to six antibiotics. The ampicillin-amikacin-cefotaxime-erythromycin-ciprofloxacin-cotrimoxazole resistotype was the most prevalent pattern detected in five S. sonnei, four S. boydii, and three S. flexneri isolates. The result of GC/MS revealed the cinnamaldehyde (84.8%) as the main ingredient of C. zeylanycum EO. The most susceptible strain to the C. zeylanycum EO was S. boydii (MIC range = 0.15-0.62 μl/ml) followed by S. flexneri (MIC range = 0.07-1.25 μl/ml), and S. sonnei (MIC range = 0.15-1.25 μl/ml). The observed ranges of MIC and MBC values of cinnamon EO against Shigella spp. were 0.07-1.25 μl/ml and 0.31-1.25 μl/ml, respectively. The antibacterial effects of cinnamon EO in this study may increase the hope of finding suitable plant compounds to treat infections caused by MDR Shigella isolates.
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21
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Antioxidant, antibacterial, and cytotoxic activities of Cedrus atlantica organic extracts and essential oil. Eur J Integr Med 2021. [DOI: 10.1016/j.eujim.2021.101292] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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