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Wang H, Li H, Zhao P, Zhang H, Jalili S. Inula helenium extract and lidocaine-loaded electrospun wound dressings for managing skin wounds pain and their healing: An in vitro and in vivo study. J Biomater Appl 2024:8853282241265920. [PMID: 39042854 DOI: 10.1177/08853282241265920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The skin injuries pose a substantial public health challenge, not only due to their physical trauma but also the accompanying pain and complexities in wound healing. In the current research, Inula helenium extract and lidocaine were loaded into electrospun PVA/calcium alginate nanofibers to promote skin wounds healing and alleviate the resulting pain. Various in vitro experiments were utilized to characterize these dressings. Wound healing potential of these constructs and their analgesic effects were studied in a rat model of skin wounds. Our developed scaffolds released the loaded drugs in a slow manner and showed antioxidative and anti-inflammatory activities. Fiber size measurement showed that drug-loaded and drug-free scaffolds had around 418.025 ± 140.11 nm and 505.51 ± 93.29 nm mean fiber size, respectively. Bacterial penetration assay confirmed that drug-loaded scaffolds reduced bacterial infiltration through the matrices. Wound healing study showed that on day 14th, the dressings loaded with inula helenium extract and lidocaine could close the wounds up to 91.26 ± 5.93%. In addition, these scaffolds significantly reduced the animals pain sensitivity. ELISA assay results implied that these dressings modulated inflammation and reduced tissue's oxidative stress.
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Affiliation(s)
- Huidong Wang
- Department of Anesthesiology (Pain treatment), Xi'an No.1 Hospital,The Affiliated Hospital of Northwest University, Xi'an, China
| | - Hongyu Li
- Department of Pain Treatment, Ankang People's Hospital, Ankang, China
| | - Pin Zhao
- Department of Anesthesiology, Xi'an No.3 Hospital,The Affiliated Hospital of Northwest University, Xi'an, China
| | - Hongbing Zhang
- Department of Ophthalmology, Xi'an No.1 Hospital,The Affiliated Hospital of Northwest University, Xi'an, China
| | - Saman Jalili
- Department of Applied Sciences, Isfahan University, Isfahan, Iran
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Dimitrova PD, Ivanova V, Trendafilova A, Paunova-Krasteva T. Anti-Biofilm and Anti-Quorum-Sensing Activity of Inula Extracts: A Strategy for Modulating Chromobacterium violaceum Virulence Factors. Pharmaceuticals (Basel) 2024; 17:573. [PMID: 38794143 PMCID: PMC11123807 DOI: 10.3390/ph17050573] [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: 03/28/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/26/2024] Open
Abstract
The formation of microbial biofilm is a self-organizing process among bacterial cells, regulated by quorum-sensing (QS) mechanisms, contributing to development of infections. These processes, either separately or in combination, significantly contribute to bacterial resistance to antibiotics and disinfectants. A novel approach to addressing the challenge of treating infections due to antibacterial resistance involves the use of plant metabolites. In recent years, there has been increasing recognition of different phytochemicals as potential modulators. In our study, we evaluated the synergistic effect of chloroform and methanol extracts from Inula species against key virulence factors, including biofilm formation, violacein production, and swarming motility. Each of the 11 examined plant extracts demonstrated the ability to reduce biofilms and pigment synthesis in C. violaceum. Two of the extracts from I. britannica exhibited significant anti-biofilm and anti-quorum-sensing effects with over 80% inhibition. Their inhibitory effect on violacein synthesis indicates their potential as anti-QS agents, likely attributed to their high concentration of terpenoids (triterpenoids, sesquiterpene lactones, and diterpenoids). Scanning electron microscopy revealed a notable reduction in biofilm biomass, along with changes in biofilm architecture and cell morphology. Additionally, fluorescence microscopy revealed the presence of metabolically inactive cells, indicating the potent activity of the extracts during treatment. These new findings underscore the effectiveness of the plant extracts from the genus Inula as potential anti-virulent agents against C. violaceum. They also propose a promising strategy for preventing or treating its biofilm formation.
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Affiliation(s)
- Petya D. Dimitrova
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev Str. Bl. 26, 1113 Sofia, Bulgaria;
| | - Viktoria Ivanova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria; (V.I.); (A.T.)
| | - Antoaneta Trendafilova
- Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, Acad. G. Bonchev Str., Bl. 9, 1113 Sofia, Bulgaria; (V.I.); (A.T.)
| | - Tsvetelina Paunova-Krasteva
- Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, Akad. G. Bonchev Str. Bl. 26, 1113 Sofia, Bulgaria;
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Özcan FŞ, Dikmen H, Özcan N, Çetin Ö, Çelik M, Trendafilova A. Microwave-assisted extraction optimization of sesquiterpene lactones from Inula helenium roots: A sustainable approach to reduce energy consumption and carbon footprint. Food Sci Nutr 2024; 12:255-267. [PMID: 38268885 PMCID: PMC10804079 DOI: 10.1002/fsn3.3775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/13/2023] [Accepted: 09/27/2023] [Indexed: 01/26/2024] Open
Abstract
Inula helenium roots are consumed as natural flavor components and raw or cooked as food, and their extracts are rich in sesquiterpene lactones such as alantolactone (AL) and isoalantolactone (IAL), which have recently attracted great attention due to their pharmacological properties. The industrial utilization of these compounds requires the development of green, efficient, cost-effective, and sustainable extraction protocols. Therefore, this study focused on the optimization of microwave-assisted extraction (MAE) process variables using Face-Centered Central Composite Design (FC-CCD). Then, maceration was applied as a conventional technique, and these techniques were compared in terms of extraction efficiency, morphological changes, antimicrobial activities, carbon emissions, and energy consumption. As a result, optimal MAE conditions, i.e., EtOH: water ratio (X 1) = 100:0, liquid/sample ratio (X 2) = 30:1 mL/g, microwave power (X 3) = 300 W, and irradiation time (X 4) = 5 min, were obtained with AL and IAL yields of 54.99 ± 0.11 (mg/g) and 48.40 ± 0.19 (mg/g), respectively. The extract obtained by MAE had similar or better activity than positive controls in most cases and formed the largest inhibition zones against E. coli (29.5 ± 0.71 mm) and A. niger (34.75 ± 1.06 mm). Morphological changes of I. helenium roots after extraction were observed by scanning electron microscopy. Additionally, MAE was 43.4 times faster than maceration, resulting in 228.6 times less energy consumption and carbon emissions. Based on these findings, it is recommended to use MAE as an industrial green technique for the extraction of sesquiterpene lactones with potential applications in nutraceuticals and food products in terms of sustainable economy and environmental protection.
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Affiliation(s)
| | - Hilal Dikmen
- Department of Food Engineering, Faculty of Chemical and Metallurgical EngineeringYildiz Technical UniversityIstanbulTurkey
| | - Nihat Özcan
- TUBITAK Marmara Research CentreLife SciencesKocaeliTurkey
| | - Özlem Çetin
- Department of Biotechnology, Faculty of ScienceSelcuk UniversityKonyaTurkey
| | - Mustafa Çelik
- Advanced Technology Research and Application CenterSelcuk UniversityKonyaTurkey
| | - Antoaneta Trendafilova
- Institute of Organic Chemistry with Centre of PhytochemistryBulgarian Academy of SciencesSofiaBulgaria
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Buza V, Niculae M, Hanganu D, Pall E, Burtescu RF, Olah NK, Matei-Lațiu MC, Vlasiuc I, Iozon I, Szakacs AR, Ielciu I, Ștefănuț LC. Biological Activities and Chemical Profile of Gentiana asclepiadea and Inula helenium Ethanolic Extracts. Molecules 2022; 27:molecules27113560. [PMID: 35684497 PMCID: PMC9182457 DOI: 10.3390/molecules27113560] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to investigate the antioxidant, antimicrobial, and cytotoxic potential of ethanolic extracts obtained from Gentiana asclepiadea L. and Inula helenium L. roots, in relation to their chemical composition. The total polyphenols, flavonoids, and phenolic acids were determined by spectrophotometric methods, while LC-MS analysis was used to evaluate the individual constituents. The antioxidant properties were tested using the FRAP and DPPH methods. The standard well diffusion and broth microdilution assays were carried out to establish in vitro antimicrobial efficacy and minimum inhibitory and bactericidal concentrations. The cytotoxicity was tested on rat intestinal epithelial cells using the MTT assay. The results pointed out important constituents such as secoiridoid glycoside (amarogentin), phenolic acids (caffeic acid, chlorogenic acid, trans-p-coumaric acid, salicylic acid), and flavonoids (apigenin, chrysin, luteolin, luteolin-7-O-glucoside, quercetin, rutoside, and naringenin) and promising antioxidant properties. The in vitro antimicrobial effect was noticed towards several pathogens (Bacillus cereus > Staphylococcus aureus > Enterococcus faecalis > Salmonella typhimurium and Salmonella enteritidis > Escherichia coli), with a pronounced bactericidal activity. Rat intestinal epithelial cell viability was not affected by the selected concentrations of these two extracts. These data support the ethnomedicinal recommendations of these species and highlight them as valuable sources of bioactive compounds.
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Affiliation(s)
- Victoria Buza
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.-C.M.-L.); (I.I.); (L.C.Ș.)
- Correspondence: (V.B.); (M.N.)
| | - Mihaela Niculae
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
- Correspondence: (V.B.); (M.N.)
| | - Daniela Hanganu
- Department of Pharmacognosy, Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400010 Cluj-Napoca, Romania;
| | - Emoke Pall
- Department of Infectious Diseases, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania;
| | | | - Neli-Kinga Olah
- SC PlantExtrakt SRL, 407059 Rădaia, Romania; (R.F.B.); (N.-K.O.)
- Faculty of Pharmacy, Vasile Goldiș Western University of Arad, 310045 Arad, Romania
| | - Maria-Cătălina Matei-Lațiu
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.-C.M.-L.); (I.I.); (L.C.Ș.)
| | - Ion Vlasiuc
- Department of Anatomy, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400374 Cluj-Napoca, Romania;
| | - Ilinca Iozon
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.-C.M.-L.); (I.I.); (L.C.Ș.)
| | - Andrei Radu Szakacs
- Department of Animal Nutrition, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400374 Cluj-Napoca, Romania;
| | - Irina Ielciu
- Department of Pharmaceutical Botany, Faculty of Pharmacy, “Iuliu Haţieganu” University of Medicine and Pharmacy, 400010 Cluj-Napoca, Romania;
| | - Laura Cristina Ștefănuț
- Department of Animal Physiology, Faculty of Veterinary Medicine, University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, 400372 Cluj-Napoca, Romania; (M.-C.M.-L.); (I.I.); (L.C.Ș.)
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