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Miranda DG, Ramos LDP, Attik N, Pereira TC, de Oliveira LD, Marcucci MC, Rodrigues FP, Back Brito GN, Carrouel F. Pfaffia paniculata Extract, a Potential Antimicrobial Agent against Candida spp., Pseudomonas aeruginosa, and Streptococcus mutans Biofilms. Microorganisms 2024; 12:1165. [PMID: 38930547 PMCID: PMC11205454 DOI: 10.3390/microorganisms12061165] [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: 04/30/2024] [Revised: 06/05/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
The World Health Organization (WHO) has prioritized developing new drugs against specific bacteria and fungi, such as Enterobacteriaceae and Candida spp. While Pfaffia paniculata is commonly called the "cure-everything", its scientifically proven benefits are limited to anti-inflammatory and antioxidant actions. Therefore, this study aims to determine the spectrum of antimicrobial activity of Pfaffia paniculata and assess its cytotoxicity. Thus, broth microdilution test was conducted according to the CLSI M7-A9 and M27-A3 reference methods. After screening, microbial species with minimum inhibitory concentration (MIC) values were selected for biofilm tests. These tests evaluated biomass using the crystal violet (CV) test, metabolic activity using the MTT assay, and structural analysis via Scanning Electron Microscopy (SEM). Cytotoxicity was evaluated in human gingival fibroblasts (FMM-1). There were reductions of 29.4 and 42.7% in CV and MTT assays for Candida spp. biofilm. S. mutans and P. aeruginosa biofilms showed a decrease of 15.7 and 28.6%, respectively. Cell viability tests indicated 55.1, 56.9, and 65.5% of viability after contact with 1.93, 0.96, and 0.48 mg/mL of the extract, respectively. The P. paniculata extract showed antimicrobial action, displayed MIC values, and antibiofilm action on P. aeruginosa, S. mutans, and C. albicans. The cytotoxicity on the FMM-1 cell line was dose-dependent. Therefore, P. paniculata extract holds significant potential for developing new drugs.
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Affiliation(s)
- Diego Garcia Miranda
- Multimaterials and Interfaces Laboratory (LMI), CNRS UMR 5615, University Claude Bernard Lyon 1, University of Lyon, 6 rue Victor Grignard, 69622 Villeurbanne, France;
- Faculté d’Odontologie, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France
- Laboratory “Health Systemic Process” (P2S), UR4129, Faculty of Medicine Laennec, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France;
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, Francisco José Longo 777, São José dos Campos 12245-000, SP, Brazil (L.D.d.O.); (M.C.M.)
| | - Lucas de Paula Ramos
- Laboratory “Health Systemic Process” (P2S), UR4129, Faculty of Medicine Laennec, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France;
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, Francisco José Longo 777, São José dos Campos 12245-000, SP, Brazil (L.D.d.O.); (M.C.M.)
- Department of Health Sciences, Paulista University, Highway President Dutra km 157, São José dos Campos 12240-420, SP, Brazil
| | - Nina Attik
- Multimaterials and Interfaces Laboratory (LMI), CNRS UMR 5615, University Claude Bernard Lyon 1, University of Lyon, 6 rue Victor Grignard, 69622 Villeurbanne, France;
- Faculté d’Odontologie, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France
| | - Thaís Cristine Pereira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, Francisco José Longo 777, São José dos Campos 12245-000, SP, Brazil (L.D.d.O.); (M.C.M.)
| | - Luciane Dias de Oliveira
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, Francisco José Longo 777, São José dos Campos 12245-000, SP, Brazil (L.D.d.O.); (M.C.M.)
| | - Maria Cristina Marcucci
- Department of Biosciences and Oral Diagnosis, Institute of Science and Technology, São Paulo State University, Francisco José Longo 777, São José dos Campos 12245-000, SP, Brazil (L.D.d.O.); (M.C.M.)
| | - Flavia Pires Rodrigues
- Oral Biology Division, School of Dentistry, Faculty of Medicine and Health, University of Leeds, Leeds LS2 9LU, UK
| | | | - Florence Carrouel
- Faculté d’Odontologie, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France
- Laboratory “Health Systemic Process” (P2S), UR4129, Faculty of Medicine Laennec, University Claude Bernard Lyon 1, University of Lyon, 7 rue Guillaume Paradin, 69008 Lyon, France;
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Héjja M, Mihok E, Alaya A, Jolji M, György É, Meszaros N, Turcus V, Oláh NK, Máthé E. Specific Antimicrobial Activities Revealed by Comparative Evaluation of Selected Gemmotherapy Extracts. Antibiotics (Basel) 2024; 13:181. [PMID: 38391567 PMCID: PMC10885950 DOI: 10.3390/antibiotics13020181] [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: 12/20/2023] [Revised: 02/04/2024] [Accepted: 02/07/2024] [Indexed: 02/24/2024] Open
Abstract
Nowadays, unprecedented health challenges are urging novel solutions to address antimicrobial resistance as multidrug-resistant strains of bacteria, yeasts and moulds are emerging. Such microorganisms can cause food and feed spoilage, food poisoning and even more severe diseases, resulting in human death. In order to overcome this phenomenon, it is essential to identify novel antimicrobials that are naturally occurring, biologically effective and increasingly safe for human use. The development of gemmotherapy extracts (GTEs) using plant parts such as buds and young shoots has emerged as a novel approach to treat/prevent human conditions due to their associated antidiabetic, anti-inflammatory and/or antimicrobial properties that all require careful evaluations. Seven GTEs obtained from plant species like the olive (Olea europaea L.), almond (Prunus amygdalus L.), black mulberry (Morus nigra L.), walnut (Juglans regia L.), blackberry (Rubus fruticosus L.), blackcurrant (Ribes nigrum L.) and bilberry (Vaccinium myrtillus L.) were tested for their antimicrobial efficiency via agar diffusion and microbroth dilution methods. The antimicrobial activity was assessed for eight bacterial (Bacillus cereus, Staphylococcus aureus, Salmonella enterica subsp. enterica, Proteus vulgaris, Enterococcus faecalis, Escherichia coli, Pseudomonas aeruginosa and Listeria monocytogenes), five moulds (Aspergillus flavus, Aspergillus niger, Aspergillus ochraceus, Penicillium citrinum, Penicillium expansum) and one yeast strain (Saccharomyces cerevisiae). The agar diffusion method revealed the blackberry GTE as the most effective since it inhibited the growth of three bacterial, four moulds and one yeast species, having considered the total number of affected microorganism species. Next to the blackberry, the olive GTE appeared to be the second most efficient, suppressing five bacterial strains but no moulds or yeasts. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were then determined for each GTE and the microorganisms tested. Noticeably, the olive GTE appeared to feature the strongest bacteriostatic and bactericidal outcome, displaying specificity for S. aureus, E. faecalis and L. monocytogenes. The other GTEs, such as blueberry, walnut, black mulberry and almond (the list indicates relative strength), were more effective at suppressing microbial growth than inducing microbial death. However, some species specificities were also evident, while the blackcurrant GTE had no significant antimicrobial activity. Having seen the antimicrobial properties of the analysed GTEs, especially the olive and black mulberry GTEs, these could be envisioned as potential antimicrobials that might enhance antibiotic therapies efficiency, while the blackberry GTE would act as an antifungal agent. Some of the GTE mixtures analysed have shown interesting antimicrobial synergies, and all the antimicrobial effects observed argue for extending these studies to include pathological microorganisms.
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Affiliation(s)
- Melinda Héjja
- Doctoral School of Nutrition and Food Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
- Institute of Nutrition Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
| | - Emőke Mihok
- Institute of Nutrition Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
- Doctoral School of Animal Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
| | - Amina Alaya
- Institute of Nutrition Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
- Doctoral School of Animal Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
| | - Maria Jolji
- Doctoral School of Nutrition and Food Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
- Institute of Nutrition Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
| | - Éva György
- Department of Food Science, Faculty of Economics, Socio-Human Sciences and Engineering, Sapientia Hungarian University of Transylvania, Libertății sq. 1., 530104 Miercurea Ciuc, Romania
| | - Noemi Meszaros
- Department of life Sciences, Faculty of Medicine, Vasile Goldis Western University of Arad, L. Rebreanu Str. 86, 310414 Arad, Romania
| | - Violeta Turcus
- Department of life Sciences, Faculty of Medicine, Vasile Goldis Western University of Arad, L. Rebreanu Str. 86, 310414 Arad, Romania
- CE-MONT Mountain Economy Center, Costin C. Kirițescu National Institute of Economic Research, Romanian Academy, Petreni Str. 49, 725700 Suceava, Romania
| | - Neli Kinga Oláh
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Vasile Goldis, Western University of Arad, L. Rebreanu Str. 86, 310414 Arad, Romania
- PlantExtrakt Ltd., No. 46, 407059 Cluj, Romania
| | - Endre Máthé
- Institute of Nutrition Science, Faculty of Agricultural and Food Sciences and Environmental Management, University of Debrecen, Böszörményi Str. 128, 4032 Debrecen, Hungary
- Department of life Sciences, Faculty of Medicine, Vasile Goldis Western University of Arad, L. Rebreanu Str. 86, 310414 Arad, Romania
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Khaliullina A, Kolesnikova A, Khairullina L, Morgatskaya O, Shakirova D, Patov S, Nekrasova P, Bogachev M, Kurkin V, Trizna E, Kayumov A. The Antimicrobial Potential of the Hop ( Humulus lupulus L.) Extract against Staphylococcus aureus and Oral Streptococci. Pharmaceuticals (Basel) 2024; 17:162. [PMID: 38399377 PMCID: PMC10893079 DOI: 10.3390/ph17020162] [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: 12/08/2023] [Revised: 01/18/2024] [Accepted: 01/25/2024] [Indexed: 02/25/2024] Open
Abstract
Plant extracts are in the focus of the pharmaceutical industry as potential antimicrobials for oral care due to their high antimicrobial activity coupled with low production costs and safety for eukaryotic cells. Here, we show that the extract from Hop (Humulus lupulus L.) exhibits antimicrobial activity against Staphylococcus aureus and Streptococci in both planktonic and biofilm-embedded forms. An extract was prepared by acetone extraction from hop infructescences, followed by purification and solubilization of the remaining fraction in ethanol. The effect of the extract on S. aureus (MSSA and MRSA) was comparable with the reference antibiotics (amikacin, ciprofloxacin, and ceftriaxone) and did not depend on the bacterial resistance to methicillin. The extract also demonstrated synergy with amikacin on six S. aureus clinical isolates, on four of six isolates with ciprofloxacin, and on three of six isolates with ceftriaxone. On various Streptococci, while demonstrating lower antimicrobial activity, an extract exhibited a considerable synergistic effect in combination with two of three of these antibiotics, decreasing their MIC up to 512-fold. Moreover, the extract was able to penetrate S. aureus and S. mutans biofilms, leading to almost complete bacterial death within them. The thin-layer chromatography and LC-MS of the extract revealed the presence of prenylated flavonoids (2',4',6',4-tetrahydroxy-3'-geranylchalcone) and acylphloroglucides (cohumulone, colupulone, humulone, and lupulone), apparently responsible for the observed antimicrobial activity and ability to increase the efficiency of antibiotics. Taken together, these data suggest an extract from H. lupulus as a promising antimicrobial agent for use both as a solely antiseptic and to potentiate conventional antimicrobials.
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Affiliation(s)
- Alyona Khaliullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Alyona Kolesnikova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Leysan Khairullina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Olga Morgatskaya
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Dilyara Shakirova
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Sergey Patov
- Institute of Chemistry, FRC “Komi Scientific Centre”, Ural Branch of the Russian Academy of Sciences, 167000 Syktyvkar, Russia; (S.P.); (P.N.)
| | - Polina Nekrasova
- Institute of Chemistry, FRC “Komi Scientific Centre”, Ural Branch of the Russian Academy of Sciences, 167000 Syktyvkar, Russia; (S.P.); (P.N.)
| | - Mikhail Bogachev
- Biomedical Engineering Research Centre, St. Petersburg Electrotechnical University, 5 Professor Popov Street, 197022 St. Petersburg, Russia;
| | - Vladimir Kurkin
- Institute of Pharmacy, Samara State Medical University, 443079 Samara, Russia;
| | - Elena Trizna
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
| | - Airat Kayumov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia; (A.K.); (A.K.); (L.K.); (O.M.); (D.S.); (E.T.)
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Hadiya S, Ibrahem RA, Abd El-Baky RM, Elsabahy M, Hussein AM, Tolba ME, Aly SA. Nano-ciprofloxacin/meropenem exhibit bactericidal activity against Gram-negative bacteria and rescue septic rat model. Nanomedicine (Lond) 2023; 18:1553-1566. [PMID: 37933674 DOI: 10.2217/nnm-2022-0314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2023] Open
Abstract
Aim: We hypothesized that simultaneous administration of two antibiotics loaded into a nanopolymer matrix would augment their synergistic bactericidal interaction. Methods: Nanoplatforms of chitosan/Pluronic® loaded with ciprofloxacin/meropenem (CS/Plu-Cip/Mer) were prepared by the ionic gelation method, using Plu at concentrations in the range 0.5-4% w/v. CS/Plu-Cip/Mer was evaluated for antibacterial synergistic activity in vitro and in vivo. Results: CS/Plu-Cip and CS/Plu-Mer with Plu concentrations of 3% w/v and 2% w/v, respectively, exhibited ∼80% encapsulation efficiency. The MICs of pathogens were fourfold to 16-fold lower for CS/Plu-Cip/Mer than for Cip/Mer. Synergy was evidenced for CS/Plu-Cip/Mer with a bactericidal effect (at 1× MIC and sub-MICs), and it significantly decreased bacterial load and rescued infected rats. Conclusion: This study illustrates the ability of CS/Plu nanopolymer to intensify synergy between antibiotics, thereby providing a promising potential to rejuvenate antibiotics considered ineffective against resistant pathogens.
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Affiliation(s)
- Safy Hadiya
- Assiut International Center of Nanomedicine, Al-Rajhy Liver Hospital, Assiut University, Assiut, 71515, Egypt
| | - Reham A Ibrahem
- Department of Microbiology & Immunology, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
| | - Rehab M Abd El-Baky
- Department of Microbiology & Immunology, Faculty of Pharmacy, Minia University, Minia, 61511, Egypt
- Department of Microbiology & Immunology, Faculty of Pharmacy, Deraya University, Minia, 61511, Egypt
| | - Mahmoud Elsabahy
- School of Biotechnology, Badr University in Cairo, Badr City, 11829, Egypt
- Department of Chemistry, Texas A&M University, College Station, TX 77842, USA
| | - Abeer Mr Hussein
- Pharmacology Department, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| | - Mohammed Em Tolba
- Medical Parasitology Department, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
| | - Sherine A Aly
- Department of Microbiology & Immunology, Faculty of Medicine, Assiut University, Assiut, 71515, Egypt
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Herman A, Herman AP. Herbal Products and Their Active Constituents Used Alone and in Combination with Antibiotics against Multidrug-Resistant Bacteria. PLANTA MEDICA 2023; 89:168-182. [PMID: 35995069 DOI: 10.1055/a-1890-5559] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The purpose of this review is to summarize the current knowledge acquired on herbal products and their active constituents with antimicrobial activity used alone and in combination with antibiotics against multidrug-resistant bacteria. The most promising herbal products and active constituents used alone against multidrug-resistant bacteria are Piper betle (methicillin-resistant Staphylococcus aureus, vancomycin-resistant Enterococcus, extended-spectrum beta-lactamase, Acinetobacter baumannii, Pseudomonas aeruginosa), Glycyrrhiza glabra (methicillin-resistant S. aureus, vancomycin-resistant Enterococcus, P. aeruginosa), and berberine (methicillin-resistant S. aureus, A. baumannii, P. aeruginosa), respectively. The synergistic effect of the combination of herbal products and their active constituents with antibiotics against multidrug-resistant bacteria are also described. These natural antibacterial agents can be promising sources of inhibitors, which can modulate antibiotic activity against multidrug-resistant bacteria, especially as efflux pump inhibitors. Other possible mechanisms of action of herbal therapy against multidrug-resistant bacteria including modification of the bacterial cell wall and/or membrane, inhibition of the cell division protein filamenting temperature sensitive Z-ring, and inhibition of protein synthesis and gene expression, all of which will also be discussed. Our review suggests that combination herbal therapy and antibiotics can be effectively used to expand the spectrum of their antimicrobial action. Therefore, combination therapy against multidrug-resistant bacteria may enable new choices for the treatment of infectious diseases and represents a potential area for future research.
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Affiliation(s)
- Anna Herman
- Faculty of Health Sciences, Warsaw School of Engineering and Health, Warsaw, Poland
| | - Andrzej P Herman
- Department of Genetic Engineering, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Jabłonna near Warsaw, Poland
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Liu H, Yang H, Zhao H, Lyu L, Wu W, Li W. The mechanism of protective effect on postharvest blackberry fruit treated with ferulic acid and natamycin jointly using transcriptomics and proteomics methods. Eur Food Res Technol 2022. [DOI: 10.1007/s00217-022-04076-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Bourais I, Elmarrkechy S, Taha D, Mourabit Y, Bouyahya A, El Yadini M, Machich O, El Hajjaji S, El Boury H, Dakka N, Iba N. A Review on Medicinal Uses, Nutritional Value, and Antimicrobial, Antioxidant, Anti-Inflammatory, Antidiabetic, and Anticancer Potential Related to Bioactive Compounds of J. regia. FOOD REVIEWS INTERNATIONAL 2022. [DOI: 10.1080/87559129.2022.2094401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Ilhame Bourais
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Salma Elmarrkechy
- Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Douae Taha
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
- Laboratory of Spectroscopy, Molecular Modelling Materials, Nanomaterials Water and Environment–CERNE2D, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Yassine Mourabit
- Laboratory of Spectroscopy, Molecular Modelling Materials, Nanomaterials Water and Environment–CERNE2D, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Abdelhakim Bouyahya
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Meryem El Yadini
- Laboratory of Spectroscopy, Molecular Modelling Materials, Nanomaterials Water and Environment–CERNE2D, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Omar Machich
- Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Souad El Hajjaji
- Laboratory of Spectroscopy, Molecular Modelling Materials, Nanomaterials Water and Environment–CERNE2D, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Houria El Boury
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Nadia Dakka
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
| | - Naima Iba
- Laboratory of Human Pathologies Biology, Department of Biology, Faculty of Sciences, Mohammed V University in Rabat, Morocco
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A Narrative Review of the Potential Roles of Lipid-Based Vesicles (Vesiculosomes) in Burn Management. Sci Pharm 2022. [DOI: 10.3390/scipharm90030039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Burn injuries can have a lasting effect on people’s quality of life, as they negatively impact their physical and mental health. Then, they are likely to suffer psychological problems as a result. A serious problem is that deep burns are more challenging to treat due to their slow healing rate and susceptibility to microbial infection. Conventional topical medications used for burn treatment are sometimes ineffective because they cannot optimize their ability of transcutaneous absorption at the targeted site and accelerate healing. However, nanotechnology offers excellent prospects for developing current medical wound therapies and is capable of addressing issues such as low drug stability, water solubility, permeability, and bioavailability. The current review focuses on lipid-based vesicles (vesiculosomes) as an example of advanced delivery systems, showing their potential clinical applications in burn wound management. Vesiculosomes may help overcome impediments including the low bioavailability of active agents, offering the controlled release of drugs, increased drug stability, fewer side effects, and reduced dosing frequency, which will ultimately improve therapeutic efficacy and patient compliance. We discuss the application of various types of vesiculosomes such as liposomes, niosomes, ethosomes, cubosomes, transfersomes, and phytosomes in burn healing therapy, as these demonstrate superior skin penetration compared to conventional burn topical treatment. We also highlight their noteworthy uses in the formulation of natural products and discuss the current status as well as future perspectives of these carriers in burn management. Furthermore, the burn treatment options currently available in the market are also summarized.
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9
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A new approach against Helicobacter pylori using plants and its constituents: A review study. Microb Pathog 2022; 168:105594. [DOI: 10.1016/j.micpath.2022.105594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 05/11/2022] [Accepted: 05/15/2022] [Indexed: 02/07/2023]
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10
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NASCIMENTO RC, SÃO JOSÉ JFBD. Green tea extract: a proposal for fresh vegetable sanitization. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.63421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Cui X, Ng KR, Chai KF, Chen WN. Clinically relevant materials & applications inspired by food technologies. EBioMedicine 2022; 75:103792. [PMID: 34974308 PMCID: PMC8728048 DOI: 10.1016/j.ebiom.2021.103792] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 12/14/2021] [Accepted: 12/17/2021] [Indexed: 12/14/2022] Open
Abstract
Food science and technology have a fundamental and considerable overlap with medicine, and many clinically important applications were borne out of translational food science research. Globally, the food industry - through various food processing technologies - generates huge quantities of agro-waste and food processing byproducts that retain a significant biochemical potential for upcycling into important medical applications. This review explores some distinct clinical applications that are fabricable from food-based biopolymers and substances, often originating from food manufacturing side streams. These include antibacterial wound dressings and tissue scaffolding from the biopolymers cellulose and chitosan and antimicrobial food phytochemicals for combating antibiotic-resistant nosocomial infections. Furthermore, fermentation is discussed as the epitome of a translational food technology that unlocks further therapeutic value from recalcitrant food-based substrates and enables sustainable large-scale production of high-value pharmaceuticals, including novel fermented food-derived bioactive peptides (BPs).
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Affiliation(s)
- Xi Cui
- Interdisciplinary Graduate School, Nanyang Technological University, 50 Nanyang Avenue, 639798, Singapore; Advanced Environmental Biotechnology Centre, Nanyang Environment & Water Research Institute, Nanyang Technological University, 1 CleanTech Loop, CleanTech One, No. 06-08, 637141, Singapore; Food Science and Technology Programme, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
| | - Kuan Rei Ng
- Food Science and Technology Programme, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
| | - Kong Fei Chai
- Food Science and Technology Programme, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore
| | - Wei Ning Chen
- Food Science and Technology Programme, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore; School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, 637459, Singapore.
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12
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Mussarat S, Adnan M, Begum S, Ur Rehman S, Hashem A, Abd Allah EF. Antimicrobial screening of polyherbal formulations traditionally used against gastrointestinal diseases. Saudi J Biol Sci 2021; 28:6829-6843. [PMID: 34866983 PMCID: PMC8626215 DOI: 10.1016/j.sjbs.2021.07.053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 07/15/2021] [Accepted: 07/18/2021] [Indexed: 12/09/2022] Open
Abstract
Emerging antibiotic resistance has become a cosmopolitan problem and evoking researchers to search for new antimicrobials from natural constituents. The present study was intended to test the antimicrobial potential of traditionally used unexplored polyherbal recipes for curing digestive ailments. A total of 25 plants species were combined in different ratios to form 14 polyherbal recipes. After collecting and grinding plant parts, methanolic extracts of 14 polyherbal recipes were prepared by the cold maceration process. Antibacterial and antifungal activity of the polyherbal extracts was checked by agar well diffusion method at a concentration of 50 mg/ ml while minimum inhibitory concentration (MIC) was determined by serial dilution method. Polyherbal recipes B and D showed significant inhibition zone each against Vibrio cholerae (25.63; p < 0.001). Recipe G (23.33; p < 0.001) showed better efficacy against Escherichia coli. Recipe E and G significantly inhibited Proteus species (28.33; 24.33; p < 0.001). Recipe B was highly effective against Salmonella typhi. Recipe C, A and F had significant antifungal affect and inhibited Aspergillus nigar (28.67; p < 0.05), Aspergillus fumigatus (27; p < 0.01) Trichoderma (30; p < 0.001), Rhizopus (19.67; p < 0.01), and Fusarium graminearum (28.67;p < 0.001). Polyherbal formulations A, B, D, K, and N were active with the lowest concentration. MIC ranges within 3.12–25 mg/ml while minimum bactericidal concentration (MBC) between 12.5 and 50 mg/ml. Polyherbal recipes’ A, B, D, G, K and N have enhanced antimicrobial potential with better efficacy than tested antibiotics and should be evaluated for further scientific validation.
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Affiliation(s)
- Sakina Mussarat
- Department of Botanical and Environmental Sciences, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - Muhammad Adnan
- Department of Botanical and Environmental Sciences, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan
| | - Shaheen Begum
- Department of Environmental Sciences, Fatima Jinnah Women University Rawalpindi, The Mall Rawalpindi 46000, Punjab, Pakistan
| | - Shafiq Ur Rehman
- Department of Botanical and Environmental Sciences, Kohat University of Science and Technology, Kohat 26000, Khyber Pakhtunkhwa, Pakistan.,Department of Biology, The University of Haripur, Haripur 22620, Khyber Pakhtunkhwa, Pakistan
| | - Abeer Hashem
- Botany and Microbiology Department, College of Science, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia
| | - Elsayed Fathi Abd Allah
- Plant Production Department, College of Food and Agricultural Sciences, King Saud University, P.O. Box. 2460, Riyadh 11451, Saudi Arabia
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Bittner Fialová S, Rendeková K, Mučaji P, Nagy M, Slobodníková L. Antibacterial Activity of Medicinal Plants and Their Constituents in the Context of Skin and Wound Infections, Considering European Legislation and Folk Medicine-A Review. Int J Mol Sci 2021; 22:ijms221910746. [PMID: 34639087 PMCID: PMC8509446 DOI: 10.3390/ijms221910746] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/26/2021] [Accepted: 10/01/2021] [Indexed: 12/24/2022] Open
Abstract
Bacterial infections of skin and wounds may seriously decrease the quality of life and even cause death in some patients. One of the largest concerns in their treatment is the growing antimicrobial resistance of bacterial infectious agents and the spread of resistant strains not only in the hospitals but also in the community. This trend encourages researchers to seek for new effective and safe therapeutical agents. The pharmaceutical industry, focusing mainly on libraries of synthetic compounds as a drug discovery source, is often failing in the battle with bacteria. In contrast, many of the natural compounds, and/or the whole and complex plants extracts, are effective in this field, inactivating the resistant bacterial strains or decreasing their virulence. Natural products act comprehensively; many of them have not only antibacterial, but also anti-inflammatory effects and may support tissue regeneration and wound healing. The European legislative is in the field of natural products medicinal use formed by European Medicines Agency (EMA), based on the scientific work of its Committee on Herbal Medicinal Products (HMPC). HMPC establishes EU monographs covering the therapeutic uses and safe conditions for herbal substances and preparations, mostly based on folk medicine, but including data from scientific research. In this review, the medicinal plants and their active constituents recommended by EMA for skin disorders are discussed in terms of their antibacterial effect. The source of information about these plant products in the review is represented by research articles listed in scientific databases (Science Direct, PubMed, Scopus, Web of Science, etc.) published in recent years.
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Affiliation(s)
- Silvia Bittner Fialová
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (K.R.); (P.M.); (M.N.)
- Correspondence: ; Tel.: +421-250-117-206
| | - Katarína Rendeková
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (K.R.); (P.M.); (M.N.)
| | - Pavel Mučaji
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (K.R.); (P.M.); (M.N.)
| | - Milan Nagy
- Department of Pharmacognosy and Botany, Faculty of Pharmacy, Comenius University in Bratislava, Odbojárov 10, 832 32 Bratislava, Slovakia; (K.R.); (P.M.); (M.N.)
| | - Lívia Slobodníková
- Institute of Microbiology, Faculty of Medicine and the University Hospital in Bratislava, Comenius University in Bratislava, Sasinkova 4, 811 08 Bratislava, Slovakia;
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14
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Vaou N, Stavropoulou E, Voidarou C, Tsigalou C, Bezirtzoglou E. Towards Advances in Medicinal Plant Antimicrobial Activity: A Review Study on Challenges and Future Perspectives. Microorganisms 2021; 9:microorganisms9102041. [PMID: 34683362 PMCID: PMC8541629 DOI: 10.3390/microorganisms9102041] [Citation(s) in RCA: 172] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 09/22/2021] [Accepted: 09/23/2021] [Indexed: 12/17/2022] Open
Abstract
The increasing incidence of drug- resistant pathogens raises an urgent need to identify and isolate new bioactive compounds from medicinal plants using standardized modern analytical procedures. Medicinal plant-derived compounds could provide novel straightforward approaches against pathogenic bacteria. This review explores the antimicrobial activity of plant-derived components, their possible mechanisms of action, as well as their chemical potential. The focus is put on the current challenges and future perspectives surrounding medicinal plants antimicrobial activity. There are some inherent challenges regarding medicinal plant extracts and their antimicrobial efficacy. Appropriate and optimized extraction methodology plant species dependent leads to upgraded and selective extracted compounds. Antimicrobial susceptibility tests for the determination of the antimicrobial activity of plant extracts may show variations in obtained results. Moreover, there are several difficulties and problems that need to be overcome for the development of new antimicrobials from plant extracts, while efforts have been made to enhance the antimicrobial activity of chemical compounds. Research on the mechanisms of action, interplay with other substances, and the pharmacokinetic and/or pharmacodynamic profile of the medicinal plant extracts should be given high priority to characterize them as potential antimicrobial agents.
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Affiliation(s)
- Natalia Vaou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
- Correspondence: (N.V.); (E.S.)
| | - Elisavet Stavropoulou
- Department of Infectious Diseases, Centre Hospitalier Universitaire Vaudois (CHUV), Rue du Bugnon, 1011 Lausanne, Switzerland
- Correspondence: (N.V.); (E.S.)
| | - Chrysa Voidarou
- Department of Agriculture, University of Ioannina, 47132 Arta, Greece;
| | - Christina Tsigalou
- Laboratory of Microbiology, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
| | - Eugenia Bezirtzoglou
- Laboratory of Hygiene and Environmental Protection, Department of Medicine, Democritus University of Thrace, Dragana, 68100 Alexandroupolis, Greece;
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15
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Rahman MM, Rahaman MS, Islam MR, Hossain ME, Mannan Mithi F, Ahmed M, Saldías M, Akkol EK, Sobarzo-Sánchez E. Multifunctional Therapeutic Potential of Phytocomplexes and Natural Extracts for Antimicrobial Properties. Antibiotics (Basel) 2021; 10:1076. [PMID: 34572660 PMCID: PMC8468069 DOI: 10.3390/antibiotics10091076] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Revised: 08/30/2021] [Accepted: 09/03/2021] [Indexed: 12/21/2022] Open
Abstract
Natural products have been known for their antimicrobial factors since time immemorial. Infectious diseases are a worldwide burden that have been deteriorating because of the improvement of species impervious to various anti-infection agents. Hence, the distinguishing proof of antimicrobial specialists with high-power dynamic against MDR microorganisms is central to conquer this issue. Successful treatment of infection involves the improvement of new drugs or some common source of novel medications. Numerous naturally occurring antimicrobial agents can be of plant origin, animal origin, microbial origin, etc. Many plant and animal products have antimicrobial activities due to various active principles, secondary metabolites, or phytochemicals like alkaloids, tannins, terpenoids, essential oils, flavonoids, lectins, phagocytic cells, and many other organic constituents. Phytocomplexes' antimicrobial movement frequently results from a few particles acting in cooperative energy, and the clinical impacts might be because of the direct effects against microorganisms. The restorative plants that may furnish novel medication lead the antimicrobial movement. The purpose of this study is to investigate the antimicrobial properties of the phytocomplexes and natural extracts of the plants that are ordinarily being utilized as conventional medications and then recommended the chance of utilizing them in drugs for the treatment of multiple drug-resistant disease.
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Affiliation(s)
- Md. Mominur Rahman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Md. Saidur Rahaman
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Md. Rezaul Islam
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Md. Emon Hossain
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Faria Mannan Mithi
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Muniruddin Ahmed
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka 1207, Bangladesh; (M.M.R.); (M.S.R.); (M.R.I.); (M.E.H.); (F.M.M.); (M.A.)
| | - Marianela Saldías
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile;
| | - Esra Küpeli Akkol
- Department of Pharmacognosy, Faculty of Pharmacy, Gazi University, 06330 Ankara, Turkey;
| | - Eduardo Sobarzo-Sánchez
- Instituto de Investigación y Postgrado, Facultad de Ciencias de la Salud, Universidad Central de Chile, Santiago 8330507, Chile;
- Department of Organic Chemistry, Faculty of Pharmacy, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain
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16
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Portillo-Torres LA, Bernardino-Nicanor A, Mercado-Monroy J, Gómez-Aldapa CA, González-Cruz L, Rangel-Vargas E, Castro-Rosas J. Antimicrobial Effects of Aqueous Extract from Calyces of Hibiscus sabdariffa in CD-1 Mice Infected with Multidrug-Resistant Enterohemorrhagic Escherichia coli and S almonella Typhimurium. J Med Food 2021; 25:902-909. [PMID: 34255570 DOI: 10.1089/jmf.2020.0216] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
To determinate the antimicrobial effect of chloramphenicol and aqueous extract against multidrug-resistant enterohemorrhagic Escherichia coli (EHEC) and Salmonella enterica serovar Typhimurium in CD-1 mice. Aqueous extract was isolated from Hibiscus sabdariffa calyces. The minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of chloramphenicol and aqueous extract were determined for EHEC and S. Typhimurium. Nine groups of six mice each were formed. Three groups were inoculated orally with 1 × 104 colony-forming units (CFU) of S. Typhimurium, three groups were inoculated with 1 × 104 CFU of EHEC and the remaining three groups were not inoculated. Six hours postinoculation, the mice of some groups were orally administered solutions of aqueous extract (50 mg/mL), chloramphenicol (82 μg/mL), or isotonic saline. The EHEC and S. Typhimurium concentration in all mice feces was determined. For both pathogens, the MIC and MBC values of aqueous extract were 20 y 50 mg/mL, respectively; for chloramphenicol, they were between 17.5 and 82 μg/mL. EHEC and S. Typhimurium were not detected in the feces of mice that were administered aqueous extract on the 2nd and 3rd days posttreatment. Furthermore, these mice recovered from the infection. In contrast, in mice not treated, or treated with chloramphenicol alone, pathogens were isolated from their feces throughout the study, and some mice died. The H. sabdariffa calyx extracts could be an alternative to control multidrug-resistant bacteria in humans and animals.
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Affiliation(s)
- Lizbeth Anahí Portillo-Torres
- Biochemical Engineering Department, Technological Institute of Celaya, Celaya, Mexico.,Academic Area of Chemistry, Institute of Basic Sciences and Engineering, City of Knowledge, Autonomous University of the Hidalgo State, Mineral de la Reforma, Mexico
| | | | - José Mercado-Monroy
- Academic Area of Chemistry, Institute of Basic Sciences and Engineering, City of Knowledge, Autonomous University of the Hidalgo State, Mineral de la Reforma, Mexico
| | - Carlos Alberto Gómez-Aldapa
- Academic Area of Chemistry, Institute of Basic Sciences and Engineering, City of Knowledge, Autonomous University of the Hidalgo State, Mineral de la Reforma, Mexico
| | | | - Esmeralda Rangel-Vargas
- Academic Area of Chemistry, Institute of Basic Sciences and Engineering, City of Knowledge, Autonomous University of the Hidalgo State, Mineral de la Reforma, Mexico
| | - Javier Castro-Rosas
- Academic Area of Chemistry, Institute of Basic Sciences and Engineering, City of Knowledge, Autonomous University of the Hidalgo State, Mineral de la Reforma, Mexico
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17
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Nowak K, Jabłońska E, Ratajczak-Wrona W. Controversy around parabens: Alternative strategies for preservative use in cosmetics and personal care products. ENVIRONMENTAL RESEARCH 2021; 198:110488. [PMID: 33221305 DOI: 10.1016/j.envres.2020.110488] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/09/2020] [Accepted: 11/12/2020] [Indexed: 06/11/2023]
Abstract
Parabens usage as preservatives in cosmetics and personal care products have been debated among scientists and consumers. Parabens are easy to production, effective and cheap, but its safety status remains controversial. Other popular cosmetics preservatives are formaldehyde, triclosan, methylisothiazolinone, methylchloroisothiazolinone, phenoxyethanol, benzyl alcohol and sodium benzoate. Although their high antimicrobial effectiveness, they also exhibit some adverse health effects. Lately, scientists have shown that natural substances such as essential oils and plant extracts present antimicrobial potential. However, their use in cosmetic is a challenge. The present review article is a comprehensive summary of the available methods to prevent microbial contamination of cosmetics and personal care products, which can allow reducing the use of parabens in these products.
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Affiliation(s)
- Karolina Nowak
- Department of Immunology, Medical University of Bialystok, Poland.
| | - Ewa Jabłońska
- Department of Immunology, Medical University of Bialystok, Poland
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18
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Wani IA, Kumar V, Verma S, Tasleem Jan A, Rather IA. Dactylorhiza hatagirea (D. Don) Soo: A Critically Endangered Perennial Orchid from the North-West Himalayas. PLANTS 2020; 9:plants9121644. [PMID: 33255646 PMCID: PMC7760081 DOI: 10.3390/plants9121644] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/15/2020] [Accepted: 11/16/2020] [Indexed: 12/25/2022]
Abstract
Dactylorhiza hatagirea (Orchidaceae) is a perennial herb inhabiting sub-alpine to alpine regions, ranging at elevations between 2500 and 5000 m.a.s.l. With palmately lobed rhizome and lanceolate leaves having a sheathing leaf base, it bears pink flowers with purple-colored notches and a curved spur. It finds wide use in ayurveda, siddha, unani, and folk medicine in curing disorders of the circulatory, respiratory, nervous, digestive, skeletal, and reproductive systems, besides boosting the immune system to fight infectious diseases. Secondary metabolites such as dactylorhins A–E, dactyloses A–B, and others exhibit a wide spectrum of pharmacological activities (antioxidant, antimicrobial, antiseptic, anticancer, and immune enhancing activities). Its use as a dietary supplement was found to be beneficial in increasing testosterone levels, resulting in improved sexual desire and arousal. Incessant overexploitation of this medicinally important herb has resulted in the dwindling of its populations in the wild, which has resulted in its classification as a critically endangered plant species. Efforts involving mass reproduction through in vitro (through tissue culture) and in vivo (by vegetative propagation) means are currently being made to maintain the germplasm of this critically endangered orchid. Holding immense significance in clinical research and drug discovery, work on the genomic front (transcriptomics) has recently been carried out to discover the wealth of unexplored genetic information for this perennial herb. The present study is aimed at reviewing different aspects of the orchid to present collective (summarized) information on this medicinally important herb in the present, particularly its botany, ethnobotanical uses, phytochemistry, and pharmacognosy, along with the strategies that need to be adopted to prevent its overexploitation in natural habitats.
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Affiliation(s)
- Ishfaq Ahmad Wani
- Department of Botany, Baba Ghulam Shah Badshah University, Rajouri 185234, India;
| | - Vijay Kumar
- Department of Biotechnology, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea;
| | - Susheel Verma
- Department of Botany, Baba Ghulam Shah Badshah University, Rajouri 185234, India;
- Correspondence: (S.V.); (A.T.J.); (I.A.R.)
| | - Arif Tasleem Jan
- Department of Botany, Baba Ghulam Shah Badshah University, Rajouri 185234, India;
- Correspondence: (S.V.); (A.T.J.); (I.A.R.)
| | - Irfan A. Rather
- Department of Biological Sciences, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
- Centre of Excellence in Bionanoscience Research, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
- Correspondence: (S.V.); (A.T.J.); (I.A.R.)
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19
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Kim HR, Eom YB. Antifungal and anti-biofilm effects of 6-shogaol against Candida auris. J Appl Microbiol 2020; 130:1142-1153. [PMID: 32981148 DOI: 10.1111/jam.14870] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/14/2020] [Accepted: 09/19/2020] [Indexed: 12/18/2022]
Abstract
AIMS This study aimed to assess the antifungal and anti-biofilm effects of 6-shogaol against Candida auris using in vitro phenotypic and genotypic analyses. METHODS AND RESULTS Our results showed that 6-shogaol exhibited antifungal as well as anti-biofilm activity by inhibiting biofilm formation and eradicating the preformed biofilms of C. auris. The rate and extent of antifungal activity were further confirmed by a time-kill assay. The XTT reduction assay confirmed that 6-shogaol decreased cellular metabolic activity in the biofilm. The effect of 6-shogaol on established C. auris biofilms was visualized by confocal laser scanning microscopy. Also, this study demonstrated that 6-shogaol reduced the levels of aspartyl proteinases and downregulated the expression of the efflux pump-related CDR1 gene in C. auris. CONCLUSIONS The data indicated that 6-shogaol extracted from ginger had antifungal and anti-biofilm effects on C. auris. SIGNIFICANCE AND IMPACT OF THE STUDY This study demonstrated the value of the plant-derived 6-shogaol as a promising and potent bioactive compound. The mode of action of this compound against C. auris biofilm was also proposed.
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Affiliation(s)
- H-R Kim
- Department of Medical Sciences, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
| | - Y-B Eom
- Department of Medical Sciences, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea.,Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan, Republic of Korea
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20
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Antibacterial activity of plant species used for oral health against Porphyromonas gingivalis. PLoS One 2020; 15:e0239316. [PMID: 33031410 PMCID: PMC7544490 DOI: 10.1371/journal.pone.0239316] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 09/03/2020] [Indexed: 12/17/2022] Open
Abstract
Porphyromonas gingivalis is the keystone pathogen of periodontitis, a chronic inflammatory disease which causes tooth loss and deterioration of gingiva. Medicinal plants have been traditionally used for oral hygiene and health and might play a role as antibacterial agents against oral pathogens. In this work, we aimed to evaluate the antibacterial activity of plants used for oral hygiene or symptoms of periodontitis against P. gingivalis. We first reviewed the literature to identify plant species used for oral hygiene or symptoms of periodontitis. Then, we cross-checked this species list with our in-house library of plant extracts to select extracts for testing. Antibacterial activity tests were then performed for each plant extract against P. gingivalis, and their cytotoxicity was assessed on HaCaT cells. The selectivity index (SI) was then calculated. A total of 416 plant species belonging to 110 families and 305 genera were documented through our literature search, and 158 plant species were noted as being used by North American Native peoples Once cross-checked with the extracts contained in our library of natural products, 30 matches were identified and 21 were defined as high priority. Of the 109 extracts from 21 plant species selected and tested, 21 extracts from 11 plants had higher than 90% inhibition on P. gingivalis at 64 μg/mL and were further selected for MIC (Minimum Inhibitory Concentration) assays. Out of 21 plant extracts, 13 extracts (7 plant species) had a SI > 10. Pistacia lentiscus fruits showed the best MIC with value of 8 μg/mL, followed by Zanthoxylum armatum fruits/seeds with a MIC of 16 μg/mL. P. lentiscus fruits also showed the highest SI of 256. Most of the extracts tested present promising antibacterial activity and low cytotoxicity. Further testing for biofilm eradication and examination of activity against other dental pathogens and oral commensals should be performed to confirm the potential of these extracts as antibacterial agents. Future work will focus on application of a bioassay-guided fractionation approach to isolating and identifying the most active natural products in the top performing extracts. This study can serve as a basis for their future development as ingredients for oral hygiene products.
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21
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Matrix metalloproteinase inhibitors identified from Camellia sinensis for COVID-19 prophylaxis: an in silico approach. ADVANCES IN TRADITIONAL MEDICINE 2020. [PMCID: PMC7538275 DOI: 10.1007/s13596-020-00508-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
To respond to the public panic, government and private research organizations of every country keep working on the COVID-19 pandemic, even though still there is a lack of more efficacious medicine for the choice of Coronavirus disease treatment. To counteract on this situation several approved drugs including anti-malarial (hydroxychloroquine and chloroquine), and few anti-viral (remdesvir) agents are choice of treatment for COVID-19. However, these agents suffer from certain limitation in their uses and pointed that there is no specific treatment or vaccine available to counter this contagious disease. Hence, there is urgent requirement to find a specific cure for the disease. In this view, there are several ongoing clinical trials of both western and traditional medicines. In present study, phytochemicals from Camellia sinensis were retrieved from the database and identified based on their ability to inhibit matrix metalloproteinase (MMPs) against SARS-CoV-2 main protease. Camellia sinensis entails of a massive number of phytochemicals with a good source of polyphenols such as Catechin, Epicatechin, Epigallocatechin and (–)-Epigallocatechin gallate. Molecular docking was performed using the GLIDE docking module of Schrodinger Suite software. The analysis displayed docking score for the five polyphenols i.e. theaflavin (− 8.701), 1-O-caffeoylquinic acid (− 7.795), Genistein (− 7.168), Epigallocatechin 3-gallate (− 6.282) and Ethyl trans-caffeate (− 5.356). Interestingly, theaflavin and Epigallocatechin 3-gallate have not revealed any side effects. These polyphenolic compounds had a strong binding affinity with hydrogen bonds and a good drug-likeness score. Therefore, Camellia sinensis could be the beneficial option in the prophylaxis of the COVID-19 outbreak.
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Embaby MA, El-Raey MA, Zaineldain M, Almaghrabi O, Marrez DA. Synergistic effect and efflux pump inhibitory activity of Ficus nitida phenolic extract with tetracycline against some pathogenic bacteria. TOXIN REV 2019. [DOI: 10.1080/15569543.2019.1659370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mohamed A. Embaby
- Chemistry Department, Faculty of Science and Arts-Khulais, University of Jeddah, Jeddah, Saudi Arabia
- Food Toxicology and Contaminants Department, National Research Centre, Cairo, Egypt
| | - Mohamed A. El-Raey
- Phytochemistry and Plant Systematic Department, National Research Centre, Cairo, Egypt
| | - Mohamed Zaineldain
- Medicinal Chemistry Department, Faculty of Pharmacy, October 6 University, Giza, Egypt
| | - Omar Almaghrabi
- Department of Biology, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Diaa A. Marrez
- Food Toxicology and Contaminants Department, National Research Centre, Cairo, Egypt
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23
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Jang H, Eom Y. Repurposing auranofin to combat uropathogenic
Escherichia coli
biofilms. J Appl Microbiol 2019; 127:459-471. [DOI: 10.1111/jam.14312] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Revised: 04/27/2019] [Accepted: 05/10/2019] [Indexed: 12/29/2022]
Affiliation(s)
- H.‐I. Jang
- Department of Medical Sciences, College of Medical Sciences Soonchunhyang University Asan Republic of Korea
| | - Y.‐B. Eom
- Department of Medical Sciences, College of Medical Sciences Soonchunhyang University Asan Republic of Korea
- Department of Biomedical Laboratory Science, College of Medical Sciences Soonchunhyang University Asan Republic of Korea
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Haq A, Siddiqi M, Batool SZ, Islam A, Khan A, Khan D, Khan S, Khan H, Shah AA, Hasan F, Ahmed S, Badshah M. Comprehensive investigation on the synergistic antibacterial activities of Jatropha curcas pressed cake and seed oil in combination with antibiotics. AMB Express 2019; 9:67. [PMID: 31102037 PMCID: PMC6525210 DOI: 10.1186/s13568-019-0793-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 05/07/2019] [Indexed: 12/25/2022] Open
Abstract
Synergistic combinations of various antimicrobial agents are considered ideal strategies in combating clinical and multidrug resistant (MDR) infections. In this study, antibacterial potential of Jatropha curcas crude seed extracts, seed oil, commercially available antibiotics, and their combinations were investigated for their synergistic effect against clinical, MDR and ATCC bacterial strains by agar well diffusion assay. Methanolic extracts remained more active against Staphylococcus aureus (ATCC), with zone of inhibition (ZOI) of 21 mm, than clinical and methicillin-resistant S. aureus (MRSA) strains (ZOI range ~ 15.0-17.0 mm). Molecular docking demonstrated that beta-monolaurin from methanolic extract exhibited greater affinity conformation for UDP-N-acetylmuramoyl-tripeptide-D-alanyl-D-alanine (MurF) ligase's active pocket with binding energy of -7.3 kcal/mol. Moxifloxacin exhibited greater activity against Escherichia coli (ATCC) (ZOI ~ 50.0 mm), followed by ofloxacin against Pseudomonas chlororaphis (47.3 mm), moxifloxacin against P. monteilii (47 mm), P. aeruginosa (46.3 mm) and MRSA2 (46 mm) and ofloxacin against S. aureus (ATCC) strains (45.7 mm). Methanolic extract in combination with rifampicin showed the highest synergism against MRSA strains, A. baumannii, E. coli, E. faecalis, S. aureus, and P. aeruginosa, A. baumannii (MDR strain), P. chlororaphis, E. coli ATCC25922 and S. aureus ATCC25923. In combinations, moxifloxacin exhibited the highest antagonism. The methanolic, n-hexane, aqueous extracts and seed oil in various combinations with antibiotics showed 44.71, 32.94, 9.41 and 25.88% synergism, respectively. The current study showed that potency of antibiotics was improved when screened in combination with J. curcas seed's components, supporting the drug combination strategy to combat antibacterial resistance.
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Affiliation(s)
- Abdul Haq
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Maleeha Siddiqi
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Syeda Zakia Batool
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Arshad Islam
- Postgraduate Program in Physiology and Pharmacology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais 31270-901 Brazil
- Present Address: Sulaiman Bin Abdullah Aba Al Khail Centre for Interdisciplinary Research in Basic Sciences, International Islamic University, Islamabad, 44000 Pakistan
| | - Alam Khan
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Dildar Khan
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Samiullah Khan
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Haji Khan
- Centre for Biotechnology and Microbiology, University of Swat, Swat, 19200 Pakistan
| | - Aamer Ali Shah
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Fariha Hasan
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Safia Ahmed
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
| | - Malik Badshah
- Department of Microbiology, Faculty of Biological Sciences, Quaid-i-Azam University, Islamabad, 45320 Pakistan
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Askarinia M, Ganji A, Jadidi-Niaragh F, Hasanzadeh S, Mohammadi B, Ghalamfarsa F, Ghalamfarsa G, Mahmoudi H. A review on medicinal plant extracts and their active ingredients against methicillin-resistant and methicillin-sensitive Staphylococcus aureus. JOURNAL OF HERBMED PHARMACOLOGY 2019. [DOI: 10.15171/jhp.2019.27] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Staphylococcus aureus is among the pathogens capable of developing a broad spectrum of infections in human beings. In addition to the hospital, the bacterium is present in the community and has a high resistance to antibiotics, which is also increasing on an ongoing basis. Resistance to β-lactam antibiotic family is one of the concerns about the bacterium that has encountered the treatment of such infections with difficulty. Due to the increased resistance and importance of this bacterium, new strategies are needed to control this pathogen. One of these approaches is the use of medicinal plants, which has attracted many researchers in the last decade. Several studies have been carried out or are being designed using various herbs to find active ingredients to deal with this bacterium. The aim of this study was to present the antibacterial activity of different medicinal plants and the effects of their active ingredients on methicillin-resistant and methicillin-sensitive S. aureus and to clarify the pathway to further studies in this regard.
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Affiliation(s)
- Marzieh Askarinia
- Student Research Committee, Yasuj University of medical sciences, Yasuj, Iran
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ali Ganji
- Molecular and Medicine Research Center, Arak University of Medical Sciences, Arak, Iran
- Department of Microbiology and Immunology, School of Medicine, Arak University of Medical Sciences, Arak, Iran
| | - Farhad Jadidi-Niaragh
- Immunology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
- Department of Immunology, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Sajad Hasanzadeh
- Department of Internal Medicine, Yasouj University of Medical Sciences, Yasouj, Iran
| | - Bahram Mohammadi
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Farideh Ghalamfarsa
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Ghasem Ghalamfarsa
- Medicinal Plants Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Hassan Mahmoudi
- Department of Microbiology, Faculty of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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26
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Liu H, Zhao H, Lyu L, Huang Z, Fan S, Wu W, Li W. Synergistic effect of natural antifungal agents for postharvest diseases of blackberry fruits. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:3343-3349. [PMID: 30578531 DOI: 10.1002/jsfa.9551] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/18/2018] [Accepted: 12/19/2018] [Indexed: 06/09/2023]
Abstract
BACKGROUND Blackberry postharvest diseases are caused by fungal pathogens, and treatment of fruits with edible, natural products could reduce the postharvest losses and contribute to food sustainability. Based on the hypothesis that inhibition of fungal pathogens will significantly extend the shelf-life of food products, the effects of natural antifungal agents on fungal pathogens were tested. RESULTS Two pathogenic fungal isolates, Aspergillus japonicus and Gilbertella persicaria, from infected blackberry fruits were identified morphologically using scanning electron microscopy and confirmed by DNA sequence analysis. The inhibitory effects and synergistic action of natural antifungal agents against the two fungal isolates were investigated. The results obtained demonstrated that the natamycin, chitosan and ferulic acid exhibited significant antifungal activities against the tested strains based on the calculated minimum inhibitory concentration. The best antifungal activity was obtained using a combination of ferulic acid and natamycin, which generated a total synergistic effect on both tested strains with a fractional inhibitory concentration index of 0.281. Application of the selected agents on postharvest blackberry fruits reduced the rot ratio and weight loss and also increased fruit firmness. In addition, the shelf-life of fresh blackberry fruits was extended up to 12-15 days at 4 °C and 90 ± 5% relative humidity. CONCLUSION The combined utilization of ferulic acid and natamycin showed synergistic antifungal activity against two pathogenic fungal isolates, and extended the shelf life of fresh blackberry fruits up to 12-15 days. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Hongxia Liu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Huifang Zhao
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Lianfei Lyu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Zhengjin Huang
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Sufan Fan
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Wenlong Wu
- Jiangsu Key Laboratory for the Research and Utilization of Plant Resources, Institute of Botany, Jiangsu Province and Chinese Academy of Sciences, Nanjing, China
| | - Weilin Li
- College of Forestry, Nanjing Forestry University, Nanjing, China
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27
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Thanigaivel S, Chandrasekaran N, Mukherjee A, Thomas J. Protective efficacy of microencapsulated seaweed extracts for preventing Aeromonas infections in Oreochromis mossambicus. Comp Biochem Physiol C Toxicol Pharmacol 2019; 218:36-45. [PMID: 30594645 DOI: 10.1016/j.cbpc.2018.12.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Revised: 12/20/2018] [Accepted: 12/21/2018] [Indexed: 01/21/2023]
Abstract
Sea weeds are valuable natural assets in aquaculture due to the presence of various bioactive active metabolites in them. Successful fish production and maintenance of disease free culturing systems in aquaculture with environment friendly practices is often affected by various environmental factors. Disease causing pathogens is one of the major factors. These can be controlled by the emerging technologies such as biopolymer based drug delivery systems, feed encapsulations processes and immersions of active ingredients which can possibly facilitate sustainable production by enhancing growth and immune responses in aquaculture animals. The focus of our study is on the identification of antibacterial and antioxidant compounds from two brown seaweeds, Gracilaria foliifera and Sargassum longifolium which have proven bioactive compounds. By a process of microencapsulation these bioactive compounds were encapsulated in the form of beads. Sodium caseinate and xanthan gum were mixed together to form the beads. This process helps to retain and protect the bio active ingredients from adverse reactions such as oxidation and nutritional deterioration. These microencapsulated beads were administered orally to 10 Oreochromis mossambicus the experimental fishes, with average body weight of 10-12 g and challenged against the pathogenic bacteria Aeromonas salmonicida to assess their antibacterial efficacy to control this bacterial pathogen. Microencapsulated bio active compounds were further characterized by FT-Raman, GC-MS, NMR, HPLC and SEM analysis. In this study, the effects of combined formulations of the different bioactive compounds were determined. Data obtained from the treatment of A. salmonicida infection in O. mossambicus using formulated bioactive compounds obtained from these seaweeds showed very high survival percentage in this species of fish.
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Affiliation(s)
- S Thanigaivel
- Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| | | | - Amitava Mukherjee
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India
| | - John Thomas
- Centre for Nanobiotechnology, Vellore Institute of Technology (VIT), Vellore, Tamil Nadu, India.
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Santos SAO, Martins C, Pereira C, Silvestre AJD, Rocha SM. Current Challenges and Perspectives for the Use of Aqueous Plant Extracts in the Management of Bacterial Infections: The Case-Study of Salmonella enterica Serovars. Int J Mol Sci 2019; 20:E940. [PMID: 30795544 PMCID: PMC6412809 DOI: 10.3390/ijms20040940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/15/2019] [Accepted: 02/17/2019] [Indexed: 11/17/2022] Open
Abstract
Worldwide, foodborne diseases are a growing public health problem. Among the infectious bacteria, non-typhoidal Salmonella enterica serovars (NTS) are the major cause of hospitalization and death, and the emergence and spread of their antibiotic-resistance is becoming a worldwide health issue. This, coupled with the restrictions of antibiotics use in agriculture and animal production, calls for alternative approaches to solve this problem. Plant-derived aqueous extracts compounds could provide novel straightforward approaches to control pathogenic bacteria. This review discusses the antimicrobial activity of aqueous plant extracts against Salmonella serovars, the possible mechanisms of action involved, which components/structures might be responsible for such activity, and the current challenges for the use of these extracts/components in Salmonella infection management and their application perspectives.
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Affiliation(s)
- Sónia A O Santos
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Cátia Martins
- QOPNA-Química Orgânica, Produtos Naturais e Agroalimentares, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Carla Pereira
- QOPNA-Química Orgânica, Produtos Naturais e Agroalimentares, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Armando J D Silvestre
- CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Sílvia M Rocha
- QOPNA-Química Orgânica, Produtos Naturais e Agroalimentares, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
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29
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Anti-biofilm activity of Rosmarinus officinalis, Punica granatum and Tetradenia riparia against methicillin-resistant Staphylococcus aureus (MRSA) and synergic interaction with penicillin. J Herb Med 2018. [DOI: 10.1016/j.hermed.2018.07.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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30
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Green Tea Catechins: Their Use in Treating and Preventing Infectious Diseases. BIOMED RESEARCH INTERNATIONAL 2018; 2018:9105261. [PMID: 30105263 PMCID: PMC6076941 DOI: 10.1155/2018/9105261] [Citation(s) in RCA: 133] [Impact Index Per Article: 22.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 06/10/2018] [Indexed: 12/19/2022]
Abstract
Green tea is one of the most popular drinks consumed worldwide. Produced mainly in Asian countries from the leaves of the Camellia sinensis plant, the potential health benefits have been widely studied. Recently, researchers have studied the ability of green tea to eradicate infectious agents and the ability to actually prevent infections. The important components in green tea that show antimicrobial properties are the catechins. The four main catechins that occur in green tea are (-)-epicatechin (EC), (-)-epicatechin-3-gallate (ECG), (-)-epigallocatechin (EGC), and (-)-epigallocatechin-3-gallate (EGCG). Of these catechins, EGCG and EGC are found in the highest amounts in green tea and have been the subject of most of the studies. These catechins have been shown to demonstrate a variety of antimicrobial properties, both to organisms affected and in mechanisms used. Consumption of green tea has been shown to distribute these compounds and/or their metabolites throughout the body, which allows for not only the possibility of treatment of infections but also the prevention of infections.
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31
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Antiulcer Activity and Potential Mechanism of Action of the Leaves of Spondias mombin L. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:1731459. [PMID: 29854075 PMCID: PMC5944294 DOI: 10.1155/2018/1731459] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Revised: 01/25/2018] [Accepted: 02/18/2018] [Indexed: 12/12/2022]
Abstract
Spondias mombin L. is used in folk medicine for the treatment of inflammation and gastrointestinal diseases. Our study investigated the antiulcer activity of S. mombin ethanolic extract (SmEE) and its majority compounds gallic acid (GA) and ellagic acid (EA). Phytochemical characterization was performed by HPLC. The SmEE was screened for in vitro antioxidant activities using phosphomolybdenum, ABTS, DPPH, and FRAP assays. The antiulcer activity of SmEE, GA, EA, or GA + EA was evaluated by gastric lesion models induced by absolute ethanol and indomethacin. Following this, it is capable of stimulating mucus production, antisecretory capacity, and the influence of −SH groups and NO in the effect of SmEE. Its healing activity was demonstrated by acetic acid-induced chronic ulcer model. Anti-Helicobacter pylori activity was assessed by determining the MIC of the SmEE (64–1024 μg/mL). The HPLC results identified the presence of gallic acid and ellagic acid in SmEE. The extract showed antioxidant activity in vitro. SmEE (50, 100, and 200 mg/kg) reduced the area of ulcerative lesions induced by ethanol in 23.8, 90.3, and 90.2%, respectively. In NSAID model, the SmEE induced protection of 36.8, 49.4, and 49.9%, respectively. GA (10 mg/kg) or EA (7 mg/kg) or the association of GA + EA (10 + 7 mg/kg) inhibited the ethanol-induced lesions in 71.8, 70.9, and 94.9%, respectively, indicating synergistic action. SmEE (100 mg/kg) decreased acid secretion and H+ concentration in the gastric contents, increased levels of mucus, and showed to be dependent of −SH groups and NO on the protection of the gastric mucosa. In chronic ulcer model, SmEE reduced the gastric area lesion. SmEE showed anti-H. pylori activity. In conclusion, our study showed that SmEE has antiulcerogenic activity. GA and EA are isolated gastric protectors and, when associated, acted synergistically to protect the gastric mucosa.
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32
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Muzaffer U, Paul VI. Phytochemical analysis, in vitro antioxidant and antimicrobial activities of male flower of Juglans regia L. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2018. [DOI: 10.1080/10942912.2017.1409762] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Umar Muzaffer
- Department of Zoology, Faculty of Science, Annamalai University, Tamilnadu, India
| | - V. I. Paul
- Department of Zoology, Faculty of Science, Annamalai University, Tamilnadu, India
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Cha JD, Jung EK, Choi SM, Lee KY, Kang SW. Antimicrobial activity of the chloroform fraction of Drynaria fortunei against oral pathogens. J Oral Sci 2018; 59:31-38. [PMID: 28367899 DOI: 10.2334/josnusd.16-0150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
Abstract
Drynaria fortunei (D. fortunei), widely used in traditional Korean medicine, is reportedly effective in treating inflammation, hyperlipidemia, bone fractures, oxidative damage, arteriosclerosis, rheumatism, and gynecological diseases. The objective of this study was to evaluate the antibacterial effects of the chloroform fraction of D. fortunei (DFCF) and assess the synergistic effects of DFCF with antibiotics against bacterial pathogens. This was carried out by calculating the minimal inhibitory concentrations (MICs) and minimum bactericidal concentrations (MBCs) and performing checkerboard dilution test and time-kill assays. The MICs/MBCs for DFCF, ampicillin, and gentamicin against all oral strains were >39-2,500/5,000 μg/mL, 0.25-64/0.25-64 µg/mL, and 0.5-256/1-512 µg/mL, respectively. DFCF exhibited the highest activity against the periodontic pathogens Prevotella intermedia and Porphylomonas gingivalis. DFCF in combination with ampicillin showed a strong synergistic effect against oral bacteria (fractional inhibitory concentration (FIC) index ≤0.5), whereas on combining with gentamicin, it reduced the on half-eighth times than used alone (FICI ≤ 0.5). DFCF combined with ampicillin or gentamicin killed 100% of most tested bacteria within 3-4 h. The results of this study demonstrate the antimicrobial and synergistic activity of DFCF and antibiotics against oral pathogens.
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Affiliation(s)
- Jeong-Dan Cha
- Department of Oral Microbiology and Institute of Oral Bioscience, Chonbuk National University
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34
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Haplotype analysis of the germacrene A synthase gene and association with cynaropicrin content and biological activities in Cynara cardunculus. Mol Genet Genomics 2017; 293:417-433. [PMID: 29143866 DOI: 10.1007/s00438-017-1388-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 10/27/2017] [Indexed: 12/13/2022]
Abstract
Cynara cardunculus: L. represents a natural source of terpenic compounds, with the predominant molecule being cynaropicrin. Cynaropicrin is gaining interest since it has been correlated to anti-hyperlipidaemia, antispasmodic and cytotoxicity activity against leukocyte cancer cells. The objective of this work was to screen a collection of C. cardunculus, from different origins, for new allelic variants in germacrene A synthase (GAS) gene involved in the cynaropicrin biosynthesis and correlate them with improved cynaropicrin content and biological activities. Using high-resolution melting, nine haplotypes were identified. The putative impact of the identified allelic variants in GAS protein was evaluated by bioinformatic tools and polymorphisms that putatively lead to protein conformational changes were described. Additionally, cynaropicrin and main pentacyclic triterpenes contents, and antithrombin, antimicrobial and antiproliferative activities were also determined in C. cardunculus leaf lipophilic-derived extracts. In this work we identified allelic variants with putative impact on GAS protein, which are significantly associated with cynaropicrin content and antiproliferative activity. The results obtained suggest that the identified polymorphisms should be explored as putative genetic markers correlated with biological properties in Cynara cardunculus.
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35
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Bilal M, Rasheed T, Iqbal HMN, Hu H, Wang W, Zhang X. Macromolecular agents with antimicrobial potentialities: A drive to combat antimicrobial resistance. Int J Biol Macromol 2017; 103:554-574. [PMID: 28528940 DOI: 10.1016/j.ijbiomac.2017.05.071] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Revised: 04/23/2017] [Accepted: 05/15/2017] [Indexed: 02/08/2023]
Abstract
In recent years, the antimicrobial resistance (AMR) or multidrug resistance (MDR) has become a serious health concern and major challenging issue, worldwide. After decades of negligence, the AMR has now captured global attention. The increasing number of antibiotic-resistant strains has threatened the achievements of science and medicine since it inactivates conventional antimicrobial therapeutics. Scientists are trying to respond to AMR/MDR threat by exploring innovative platforms and new therapeutic strategies to tackle infections from these resistant strains and bypass treatment limitations related to these pathologies. The present review focuses on the utilization of bio-inspired novel constructs and their potential applications as novel antimicrobial agents. The first part of the review describes plant-based biological macromolecules containing an immense variety of secondary metabolites, which could be potentially used as alternative strategies to combat antimicrobial resistance. The second part discusses the potential of metal-based macromolecules as effective antimicrobial platforms for preventing infections from resistant strains. The third part comprehensively elucidates how nanoparticles, in particular, metal-integrated nanoparticles can overcome this AMR or MDR issue. Towards the end, information is given with critical concluding remarks, gaps, and finally envisioned with future considerations.
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Affiliation(s)
- Muhammad Bilal
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China.
| | - Tahir Rasheed
- The School of Chemistry & Chemical Engineering, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hafiz M N Iqbal
- School of Engineering and Science, Tecnologico de Monterrey, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L., CP 64849, Mexico.
| | - Hongbo Hu
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wei Wang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Xuehong Zhang
- State Key Laboratory of Microbial Metabolism, and School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai, 200240, China
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36
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Zhou T, Li Z, Kang OH, Mun SH, Seo YS, Kong R, Shin DW, Liu XQ, Kwon DY. Antimicrobial activity and synergism of ursolic acid 3-O-α-L-arabinopyranoside with oxacillin against methicillin-resistant Staphylococcus aureus. Int J Mol Med 2017; 40:1285-1293. [PMID: 28848992 DOI: 10.3892/ijmm.2017.3099] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 07/28/2017] [Indexed: 11/06/2022] Open
Abstract
The objective of the present study was to investigate the antibacterial activity of a single constituent, ursolic acid 3-O-α-L-arabinopyranoside (URS), isolated from the leaves of Acanthopanax henryi (Oliv.) Harms, alone and in combination with oxacillin (OXA) against methicillin-resistant Staphylococcus aureus (MRSA). A broth microdilution assay was used to determine the minimal inhibitory concentration (MIC). The synergistic effects of URS and OXA were determined using a checkerboard dilution test and time-kill curve assay. The mechanism of action of URS against MRSA was analyzed using a viability assay in the presence of a detergent and an ATPase inhibitor. Morphological changes in the URS-treated MRSA strains were evaluated via transmission electron microscopy (TEM). In addition, the producing penicillin-binding protein 2a (PBP2a) protein level was analyzed using western blotting. The MIC value of URS against MRSA was found to be 6.25 µg/ml and there was a partial synergistic effect between OXA and URS. The time-kill growth curves were suppressed by OXA combined with URS at a sub-inhibitory level. Compared to the optical density at 600 nm (OD600) value of URS alone (0.09 µg/ml), the OD600 values of the suspension in the presence of 0.09 µg/ml URS and 0.00001% Triton X-100 or 250 µg/ml N,N'-dicyclohexylcarbodiimide reduced by 56.6 and 85.9%, respectively. The TEM images of MRSA indicated damage to the cell wall, broken cell membranes and cell lysis following treatment with URS and OXA. Finally, an inhibitory effect on the expression of PBP2a protein was observed when cells were treated with URS and OXA compared with untreated controls. The present study suggested that URS was significantly active against MRSA infections and revealed the potential of URS as an effective natural antibiotic.
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Affiliation(s)
- Tian Zhou
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Zhi Li
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410-208, P.R. China
| | - Ok-Hwa Kang
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Su-Hyun Mun
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Yun-Soo Seo
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Ryong Kong
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
| | - Dong-Won Shin
- Department of Oriental Medicine Resources, College of Bio Industry Science, Sunchon National University, Sunchon, Jeonnam 540-742, Republic of Korea
| | - Xiang-Qian Liu
- School of Pharmacy, Hunan University of Chinese Medicine, Changsha, Hunan 410-208, P.R. China
| | - Dong-Yeul Kwon
- Department of Oriental Pharmacy, College of Pharmacy and Wonkwang-Oriental Medicines Research Institute, Institute of Biotechnology, Wonkwang University, Iksan, Jeonbuk 570-749, Republic of Korea
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Beesoo R, Bhagooli R, Neergheen-Bhujun VS, Li WW, Kagansky A, Bahorun T. Antibacterial and antibiotic potentiating activities of tropical marine sponge extracts. Comp Biochem Physiol C Toxicol Pharmacol 2017; 196:81-90. [PMID: 28392375 DOI: 10.1016/j.cbpc.2017.04.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Revised: 04/04/2017] [Accepted: 04/04/2017] [Indexed: 12/27/2022]
Abstract
Increasing prevalence of antibiotic resistance has led research to focus on discovering new antimicrobial agents derived from the marine biome. Although ample studies have investigated sponges for their bioactive metabolites with promising prospects in drug discovery, the potentiating effects of sponge extracts on antibiotics still remains to be expounded. The present study aimed to investigate the antibacterial capacity of seven tropical sponges collected from Mauritian waters and their modulatory effect in association with three conventional antibiotics namely chloramphenicol, ampicillin and tetracycline. Disc diffusion assay was used to determine the inhibition zone diameter (IZD) of the sponge total crude extracts (CE), hexane (HF), ethyl acetate (EAF) and aqueous (AF) fractions against nine standard bacterial isolates whereas broth microdilution method was used to determine their minimum inhibitory concentrations (MICs), minimum bactericidal concentrations (MBCs) and antibiotic potentiating activity of the most active sponge extract. MIC values of the sponge extracts ranged from 0.039 to 1.25mg/mL. Extracts from Neopetrosia exigua rich in beta-sitosterol and cholesterol displayed the widest activity spectrum against the 9 tested bacterial isolates whilst the best antibacterial profile was observed by its EAF particularly against Staphylococcus aureus and Bacillus cereus with MIC and MBC values of 0.039mg/mL and 0.078mg/mL, respectively. The greatest antibiotic potentiating effect was obtained with the EAF of N. exigua (MIC/2) and ampicillin combination against S. aureus. These findings suggest that the antibacterial properties of the tested marine sponge extracts may provide an alternative and complementary strategy to manage bacterial infections.
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Affiliation(s)
- Rima Beesoo
- Department of Biosciences, Faculty of Science, University of Mauritius, Réduit 80837, Republic of Mauritius; ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Republic of Mauritius
| | - Ranjeet Bhagooli
- Department of Marine and Ocean Science, Fisheries and Mariculture, Faculty of Ocean Studies, University of Mauritius, Réduit 80837, Republic of Mauritius.
| | - Vidushi S Neergheen-Bhujun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius; Department of Health Sciences, Faculty of Science University of Mauritius, Réduit, Republic of Mauritius.
| | - Wen-Wu Li
- Guy Hilton Research Centre, Institute for Science and Technology in Medicine, Keele University, Thornburrow Drive, ST4 7 QB Stoke on Trent, UK
| | - Alexander Kagansky
- Synthetic Epigenetics Laboratory, MRC Human Genetics Unit, Institute of Genetics and Molecular Medicine, University of Edinburgh, Western General Hospital Crewe Road South, Edinburgh EH4 2XU, UK
| | - Theeshan Bahorun
- ANDI Centre of Excellence for Biomedical and Biomaterials Research, MSIRI Building, University of Mauritius, Réduit 80837, Republic of Mauritius.
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Anand J, Rai N. Anticandidal synergistic activity of green tea catechins, antimycotics and copper sulphate as a mean of combinational drug therapy against candidiasis. J Mycol Med 2017; 27:33-45. [DOI: 10.1016/j.mycmed.2016.08.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Revised: 07/06/2016] [Accepted: 08/02/2016] [Indexed: 01/03/2023]
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Anyanwu MU, Okoye RC. Antimicrobial activity of Nigerian medicinal plants. JOURNAL OF COMPLEMENTARY MEDICINE RESEARCH 2017; 6:240-259. [PMID: 28512606 PMCID: PMC5429085 DOI: 10.5455/jice.20170106073231] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 12/19/2016] [Indexed: 11/24/2022]
Abstract
Antimicrobial resistance (AMR) is currently one of the major threats facing mankind. The emergence and rapid spread of multi- and pan-drug-resistant organisms (such as vancomycin-, methicillin-, extended-spectrum β-lactam-, carbapenem- and colistin-resistant organisms) has put the world in a dilemma. The health and economic burden associated with AMR on a global scale are dreadful. Available antimicrobials have been misused and are almost ineffective with some of these drugs associated with dangerous side effects in some individuals. Development of new, effective, and safe antimicrobials is one of the ways by which AMR burden can be reduced. The rate at which microorganisms develop AMR mechanisms outpaces the rate at which new antimicrobials are being developed. Medicinal plants are potential sources of new antimicrobial molecules. There is renewed interest in antimicrobial activities of phytochemicals. Nigeria boasts of a huge heritage of medicinal plants and there is avalanche of researches that have been undertaken to screen antimicrobial activities of these plants. Scientific compilation of these studies could provide useful information on the antimicrobial properties of the plants. This information can be useful in the development of new antimicrobial drugs. This paper reviews antimicrobial researches that have been undertaken on Nigerian medicinal plants.
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Klebsiella pneumoniae Planktonic and Biofilm Reduction by Different Plant Extracts: In Vitro Study. ScientificWorldJournal 2016; 2016:3521413. [PMID: 28004034 PMCID: PMC5149674 DOI: 10.1155/2016/3521413] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 11/02/2016] [Indexed: 02/04/2023] Open
Abstract
This study evaluated the action of Pfaffia paniculata K., Juglans regia L., and Rosmarius officinalis L. extracts against planktonic form and biofilm of Klebsiella pneumoniae (ATCC 4352). Minimum inhibitory concentration (MIC) and minimum microbicidal concentration (MMC) values were determined for each extract by microdilution broth method, according to Clinical and Laboratory Standards Institute. Next, antimicrobial activity of the extracts on biofilm was analyzed. For this, standardized suspension at 107 UFC/mL of K. pneumoniae was distributed into 96-well microplates (n = 10) and after 48 h at 37°C and biofilm was subjected to treatment for 5 min with the extracts at a concentration of 200 mg/mL. ANOVA and Tukey tests (5%) were used to verify statistical significant reduction (p < 0.05) of planktonic form and biofilm. P paniculata K., R. officinalis L., and J. regia L. showed reductions in biomass of 55.6, 58.1, and 18.65% and cell viability reduction of 72.4, 65.1, and 31.5%, respectively. The reduction obtained with P. paniculata and R. officinalis extracts was similar to the reduction obtained with chlorhexidine digluconate 2%. In conclusion, all extracts have microbicidal action on the planktonic form but only P. paniculata K. and R. officinalis L. were effective against biofilm.
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Rocha BS, Nunes C, Laranjinha J. Tuning constitutive and pathological inflammation in the gut via the interaction of dietary nitrate and polyphenols with host microbiome. Int J Biochem Cell Biol 2016; 81:393-402. [PMID: 27989963 DOI: 10.1016/j.biocel.2016.10.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Revised: 10/22/2016] [Accepted: 10/26/2016] [Indexed: 02/08/2023]
Abstract
Chronic inflammation is currently recognized as a critical process in modern-era epidemics such as diabetes, obesity and neurodegeneration. However, little attention is paid to the constitutive inflammatory pathways that operate in the gut and that are mandatory for local welfare and the prevention of such multi-organic diseases. Hence, the digestive system, while posing as a barrier between the external environment and the host, is crucial for the balance between constitutive and pathological inflammatory events. Gut microbiome, a recently discovered organ, is now known to govern the interaction between exogenous agents and the host with ensued impact on local and systemic homeostasis. Whereas gut microbiota may be modulated by a myriad of factors, diet constitutes one of its major determinants. Thus, dietary compounds that influence microbial flora may thereby impact on inflammatory pathways. One such example is the redox environment in the gut lumen which is highly dependent on the local generation of nitric oxide along the nitrate-nitrite-nitric oxide pathway and that is further enhanced by simultaneous consumption of polyphenols. In this paper, different pathways encompassing the interaction of dietary nitrate and polyphenols with gut microbiota will be presented and discussed in connection with local and systemic inflammatory events. Furthermore, it will be discussed how these interactive cycles (nitrate-polyphenols-microbiome) may pose as novel strategies to tackle inflammatory diseases.
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Affiliation(s)
- Bárbara S Rocha
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - Carla Nunes
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal
| | - João Laranjinha
- Faculty of Pharmacy and Center for Neurosciences and Cell Biology, University of Coimbra, Health Sciences Campus, Azinhaga de Santa Comba, 3000-548 Coimbra, Portugal.
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Thakur P, Chawla R, Chakotiya AS, Tanwar A, Goel R, Narula A, Arora R, Sharma RK. Camellia sinensis Ameliorates the Efficacy of Last Line Antibiotics Against Carbapenem Resistant Escherichia coli. Phytother Res 2015; 30:314-22. [DOI: 10.1002/ptr.5535] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 09/16/2015] [Accepted: 11/11/2015] [Indexed: 12/17/2022]
Affiliation(s)
- Pallavi Thakur
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
| | - Raman Chawla
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
| | - Ankita Singh Chakotiya
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
| | - Ankit Tanwar
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
- Department of Medical Elementology and Toxicology; Jamia Hamdard; Delhi India
| | - Rajeev Goel
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
| | - Alka Narula
- Department of Biotechnology; Jamia Hamdard; Delhi India
| | - Rajesh Arora
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
- Office of DG (LS); Defence Research and Development Organisation (DRDO) Bhawan; Delhi India
| | - Rakesh Kumar Sharma
- Division of CBRN Defence; Institute of Nuclear Medicine and Allied Sciences; Delhi India
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Carranza MG, Sevigny MB, Banerjee D, Fox-Cubley L. Antibacterial activity of native California medicinal plant extracts isolated from Rhamnus californica and Umbellularia californica. Ann Clin Microbiol Antimicrob 2015; 14:29. [PMID: 26001558 PMCID: PMC4443625 DOI: 10.1186/s12941-015-0086-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Accepted: 05/15/2015] [Indexed: 11/25/2022] Open
Abstract
Background Antimicrobial resistance (AMR) is a major threat to global public health. Medicinal plants have long been used as remedies for infectious diseases by native cultures around the world and have the potential for providing effective treatments for antibiotic-resistant infections. Rhamnus californica (Rhamnaceae) and Umbellularia californica (Lauraceae) are two indigenous California plant species historically used by Native Americans to treat skin, respiratory and gastrointestinal infections. This study aimed to assess the in vitro antimicrobial activity of methanolic extracts of leaves and bark of R. and U. californica against methicillin-resistant Staphylococcus aureus (MRSA) and other Gram-positive and Gram-negative bacteria. Methods Methanolic extracts of leaves and bark of R. and U. californica were prepared by soxhlet extraction and evaluated for their antimicrobial activity against Bacillus cereus, Streptococcus pyogenes, Mycobacterium smegmatis, Staphylococcus aureus, MRSA, Escherichia coli and Pseudomonas aeruginosa using disc diffusion and minimal inhibitory concentration (MIC) assays. Chemical profiling of the extracts was performed using standard methods. Results All extracts inhibited the growth of MRSA and other Gram-positive bacteria with MICs of 3.3-6.0 mg/ml. Gram-negative organisms were unaffected by these extracts. U. californica extracts (leaves and bark) had the lowest MIC values. Chemical profiling detected the presence of quinones, alkaloids, flavonoids, cardenolides, tannins and saponins in these extracts. Our study is the first to report the antimicrobial properties of R. and U. californica and illustrates their promising anti-MRSA potential. Conclusions Our results give scientific credence to the traditional medicinal uses of these plants by the indigenous peoples of California. Further investigation of the secondary metabolites responsible for the antimicrobial activity of these extracts against MRSA is warranted.
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Affiliation(s)
- Maria G Carranza
- Department of Natural Sciences and Mathematics, Dominican University of California, 50 Acacia Avenue, San Rafael, CA, 94901, USA.
| | - Mary B Sevigny
- Department of Natural Sciences and Mathematics, Dominican University of California, 50 Acacia Avenue, San Rafael, CA, 94901, USA.
| | - Debashree Banerjee
- Department of Natural Sciences and Mathematics, Dominican University of California, 50 Acacia Avenue, San Rafael, CA, 94901, USA.
| | - Lacie Fox-Cubley
- Department of Natural Sciences and Mathematics, Dominican University of California, 50 Acacia Avenue, San Rafael, CA, 94901, USA.
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