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Luty-Błocho M, Cyndrowska J, Rutkowski B, Hessel V. Synthesis of Gold Clusters and Nanoparticles Using Cinnamon Extract-A Mechanism and Kinetics Study. Molecules 2024; 29:1426. [PMID: 38611706 PMCID: PMC11013221 DOI: 10.3390/molecules29071426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Revised: 03/13/2024] [Accepted: 03/18/2024] [Indexed: 04/14/2024] Open
Abstract
In this work, UV-Vis spectrophotometry, High Resolution Scanning Transmission Electron Microscopes and selected experimental conditions were used to screen the colloidal system. The obtained results complement the established knowledge regarding the mechanism of nanoparticle formation. The process of gold nanoparticles formation involves a two-step reduction of Au ions to Au(0); atom association and metastable cluster formation; autocatalytic cluster growth; ultra-small particle formation (1-2 nm, in diameter); particle growth and larger particles formation; and further autocatalytic crystal growth (D > 100 nm). As a reductant of Au(III) ions, a cinnamon extract was used. It was confirmed that eugenol as one of the cinnamon extract compounds is responsible for fast Au(III) ion reduction, whereas cinnamaldehyde acts as a gold-particle stabilizer. Spectrophotometry studies were carried out to track kinetic traces of gold nanoparticle (D > 2 nm) formation in the colloidal solution. Using the Watzky-Finke model, the rate constants of nucleation and autocatalytic growth were determined. Moreover, the values of energy, enthalpy and entropy of activation for stages related to the process of nanoparticle formation (Index 1 relates to nucleation, and Index 2 relates to the growth) were determined and found to be E1 = 70.6 kJ, E2 = 19.6 kJ, ΔH1 = 67.9 kJ/mol, ΔH2 = 17 kJ/mol, ΔS1 = -76.2 J/(K·mol), ΔS2 = -204.2 J/(K·mol), respectively. In this work the limitation of each technique (spectrophotometry vs. HRSTEM) as a complex tool to understand the dynamic of the colloidal system was discussed.
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Affiliation(s)
- Magdalena Luty-Błocho
- AGH University of Krakow, Faculty of Non-Ferrous Metals, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Jowita Cyndrowska
- AGH University of Krakow, Faculty of Non-Ferrous Metals, al. A. Mickiewicza 30, 30-059 Krakow, Poland
| | - Bogdan Rutkowski
- AGH University of Krakow, Faculty of Metals Engineering and Industrial Computer Science, al. A. Mickiewicza 30, 30-059 Krakow, Poland;
| | - Volker Hessel
- School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia;
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Agrawal A, Keerthipati S, Sreerama S, Singla D, Acharya S, Mehta D, Kumar S, Paiwal K. Effect of herbal mouthrinsein dental ultrasonic scalers among Indians. Bioinformation 2023; 19:1104-1110. [PMID: 38046514 PMCID: PMC10692984 DOI: 10.6026/973206300191104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 11/30/2023] [Accepted: 11/30/2023] [Indexed: 12/05/2023] Open
Abstract
The use of herbal mouthrinse is gaining momentum in recent years. Therefore, it is of interest to evaluate the effect of 2 herbal mouthrinse (curcumin, cinnamon) in comparison with2 conventional mouthrinse (povidone iodine, chlorhexidine) when used as coolant in dental ultrasonic scalers. Hence, 200 participants were included in this study. Analysis of gingival index, periodontal index at baseline and one month follow up was completed. The inhibitory effects of both conventional and herbal mouth rinse in gingival health are similar. However, cinnamon and curcumin owing to its minimal adverse effects and low cost is useful as an alternative to chlorhexidine for reducing bacterial load in dental aerosols produced due to ultrasonic scalers.
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Affiliation(s)
- Ankita Agrawal
- Department of Conservative and Endodontics, Buddha Institute of Dental Sciences and Hospital, Patna, Bihar, India
| | - Shilpa Keerthipati
- Department of Orthodontics, Gitam Dental College and Hospital, Visakhapatnam, India
| | | | - Deepika Singla
- Department of Conservative Dentistry & Endodontics, Desh Bhagat Dental College & Hospital, Mandi Gobindgarh, Punjab, India
| | - Sonu Acharya
- Department of Pediatric and Preventive Dentistry, Institute of Dental Sciences, Siksha Anusandhan (Deemed to be) University, Bhubaneswar, India
| | - DhavalNiranjan Mehta
- Department of Oral Medicine and Radiology, Narsinbhai Patel Dental College and Hospital, Sankalchand PatelUniversity, Visnagar, Gujarat, India
| | - Santosh Kumar
- Department of Periodontology, Karnavati School of Dentistry, Karnavati University, Gandhinagar, Gujarat, India
| | - Kapil Paiwal
- Department of Oral & Maxillofacial Pathology, Daswani Dental College & Research Center, Kota, India
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Lonati E, Sala G, Corbetta P, Pagliari S, Cazzaniga E, Botto L, Rovellini P, Bruni I, Palestini P, Bulbarelli A. Digested Cinnamon ( Cinnamomum verum J. Presl) Bark Extract Modulates Claudin-2 Gene Expression and Protein Levels under TNFα/IL-1β Inflammatory Stimulus. Int J Mol Sci 2023; 24:ijms24119201. [PMID: 37298151 DOI: 10.3390/ijms24119201] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/19/2023] [Accepted: 05/20/2023] [Indexed: 06/12/2023] Open
Abstract
Epigenetic changes, host-gut microbiota interactions, and environmental factors contribute to inflammatory bowel disease (IBD) onset and progression. A healthy lifestyle may help to slow down the chronic or remitting/relapsing intestinal tract inflammation characteristic of IBD. In this scenario, the employment of a nutritional strategy to prevent the onset or supplement disease therapies included functional food consumption. Its formulation consists of the addition of a phytoextract enriched in bioactive molecules. A good candidate as an ingredient is the Cinnamon verum aqueous extract. Indeed, this extract, subjected to a process of gastrointestinal digestion simulation (INFOGEST), exhibits beneficial antioxidant and anti-inflammatory properties in an in vitro model of the inflamed intestinal barrier. Here, we deepen the study of the mechanisms related to the effect of digested cinnamon extract pre-treatment, showing a correlation between transepithelial electrical resistance (TEER) decrement and alterations in claudin-2 expression under Tumor necrosis factor-α/Interleukin-1β (TNF-α/IL-1) β cytokine administration. Our results show that pre-treatment with cinnamon extract prevents TEER loss by claudin-2 protein level regulation, influencing both gene transcription and autophagy-mediated degradation. Hence, cinnamon polyphenols and their metabolites probably work as mediators in gene regulation and receptor/pathway activation, leading to an adaptive response against renewed insults.
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Affiliation(s)
- Elena Lonati
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Gessica Sala
- Milan Center for Neuroscience (NeuroMI), School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Paolo Corbetta
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Stefania Pagliari
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Emanuela Cazzaniga
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Laura Botto
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
| | - Pierangela Rovellini
- Innovhub Stazioni Sperimentali per l'Industria S.r.l., Via Giuseppe Colombo 79, 20133 Milan, Italy
| | - Ilaria Bruni
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
- ZooPlantLab, Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Paola Palestini
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
| | - Alessandra Bulbarelli
- School of Medicine and Surgery, University of Milano-Bicocca, Via Cadore 48, 20900 Monza, Italy
- Bicocca cEnter of Science and Technology for FOOD (BEST4FOOD), University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
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Zawani CJ, Nor-Khaizura MAR, Mahyudin NA, Ismail-Fitry MR, Nirmal NP. Microbiological and Sensorial Quality of Beef Meat (Longissimus dorsi) Marinated with Cinnamon Extract and Stored at Various Temperatures. Foods 2022; 11. [PMID: 36553712 DOI: 10.3390/foods11243971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 12/02/2022] [Accepted: 12/06/2022] [Indexed: 12/13/2022] Open
Abstract
Meat spoilage caused by temperature abuse is a major problem for producers, retailers, and consumers that can generate large economic losses to industries. Microbial growth of Pseudomonas spp. is the main source of spoilage during storage. Cinnamon has antimicrobial properties that may potentially be used to reduce the spoilage caused by Pseudomonas. The objectives of this study were to determine the inhibitory effect of cinnamon extract (CE) against Pseudomonas aeruginosa (ATCC 27853) and evaluate the treatment of CE on meat quality during different storage temperatures (5 °C, 10 °C, 15 °C, and 25 °C). The anti-Pseudomonas result showed that 100% (w/v) CE concentration produced a 13.50 mm zone of inhibition in a disc diffusion assay. The minimum inhibitor concentration (MIC) of CE was noted at 25% (v/v), whereas the minimum bactericidal concentration (MBC) value was observed at 50% (v/v) concentration of CE. The time-kill showed the growth of P. aeruginosa decreased from 7.64 to 5.39 log CFU/mL at MIC concentration. Total phenolic content and IC50 value of the cinnamon extract was expressed as 6.72 ± 0.87 mg GAE/g extract and 0.15 mg/mL, respectively. When the meat was marinated with 50% (v/v) CE and stored at various temperatures, the total viable count (TVC) and growth of Pseudomonas spp. were lowered as compared to the control sample. However, the reduction in microbial count in all samples was influenced by the storage temperature, where the lowered microbial count was noted in the sample treated with CE and stored at 5 and 10 °C for 48 h. The pH of meat treated with or without CE ranged from pH 5.74 to 6.48. The sensory attributes of colour, texture, and overall acceptability have a significant difference, except for odour, between marinated meat and control. The results indicate that the use of cinnamon extract as the marination agent for meat could reduce the growth of Pseudomonas spp. and therefore assist in extending the shelf life of meat at 5 and 10 °C storage temperatures.
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Ogwaro BA, O’Gara EA, Hill DJ, Gibson H. A Study of the Antimicrobial Activity of Combined Black Pepper and Cinnamon Essential Oils against Escherichia fergusonii in Traditional African Yoghurt. Foods 2021; 10:foods10112847. [PMID: 34829130 PMCID: PMC8618451 DOI: 10.3390/foods10112847] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 11/05/2021] [Accepted: 11/15/2021] [Indexed: 11/25/2022] Open
Abstract
The antimicrobial activity of the essential oils of black pepper (BPE) and cinnamon bark (CE) extracts against E. fergusonii was assessed in pasteurized full cream milk during and post-fermentation. The milk was fermented with 1% (v/v) of Lactobacillus delbrueckii subspecies bulgaricus (NCIMB 11778) and Streptococcus thermophilus (NCIMB 10387) (approx. 106 cfu/mL each) and incubated and stored at 25 °C for 5 days (144 h) or at 43 °C for 24 h and then stored at 25 °C for 120 h. The milk was spiked with E. fergusonii at the start of fermentation by the lactic acid bacteria (pre-fermentation contamination) for after fermentation (post fermentation contamination). BPE and CE were applied at concentrations based on their minimum inhibitory concentration of 0.5% and 0.25% respectively as follows: 0.5% BPE alone; 0.125% BPE with 0.1875% CE; 0.25% BPE with 0.125% CE; 0.375% BPE with 0.0625% CE; 0.25% CE alone. Results showed that during fermentation at 25 °C, E. fergusonii grew to a similar level (approx. 109 CFU/mL) in control samples and 108 CFU/mL when BPE or CE were added alone. Whereas, in the samples with the combined essential oils, the bacterium grew to 106–107 CFU/mL only. During the milk fermentation at 43 °C, E. fergusonii grew to approx. 109 CFU/mL in samples without treatment. However, it was not detected in samples containing mixed BPE with CE after 8, 10 and 12 h of fermentation. Subsequent storage at 25 °C resulted in undetectable levels of the bacterium in all the samples treated with BPE or CE after 24 h of storage. These results indicated that BPE in combination with CE reduced growth during fermentation and was bactericidal during storage.
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Affiliation(s)
- Betty A. Ogwaro
- Faculty of Science and Engineering, Wolverhampton School of Sciences, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK; (B.A.O.); (D.J.H.)
- Faculty of Science and Engineering, Research Institute for Healthcare Science, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK;
| | - Elizabeth A. O’Gara
- Faculty of Science and Engineering, Research Institute for Healthcare Science, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK;
- Faculty of Science and Engineering, School of Medicine and Clinical Practice, University of Wolverhampton, Wufruna Street, Wolverhampton WV1 1LY, UK
| | - David J. Hill
- Faculty of Science and Engineering, Wolverhampton School of Sciences, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK; (B.A.O.); (D.J.H.)
- Faculty of Science and Engineering, Research Institute for Healthcare Science, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK;
| | - Hazel Gibson
- Faculty of Science and Engineering, Wolverhampton School of Sciences, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK; (B.A.O.); (D.J.H.)
- Faculty of Science and Engineering, Research Institute for Healthcare Science, University of Wolverhampton, Wulfruna Street, Wolverhampton WV1 1LY, UK;
- Correspondence:
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Dėnė L, Valiuškaitė A. Sensitivity of Botrytis cinerea Isolates Complex to Plant Extracts. Molecules 2021; 26:molecules26154595. [PMID: 34361746 PMCID: PMC8347540 DOI: 10.3390/molecules26154595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/10/2021] [Accepted: 07/26/2021] [Indexed: 11/16/2022] Open
Abstract
New agricultural strategies aim to reduce the use of pesticides due to their damage to the environment and humans, and the caused resistance to pathogens. Therefore, alternative sources of antifungal compounds from plants are under investigation lately. Extracts from plants have a wide composition of chemical compounds which may complicate the development of pathogen resistance. Botrytis cinerea, causing grey mould, is an important horticultural and ornamental pathogen, responsible for the relevant yield and quality losses. B. cinerea isolated from a different plant host may differ in the sensitivity to antifungal substances from plants. Assessing the importance of research covering a wide range of pathogens for the rapid development of biopesticides, this study aims to determine the sensitivity of the B. cinerea isolate complex (10 strains) to plant extracts, describe morphological changes caused by the extract treatment, and detect differences between the sensitivity of different plant host isolates. The results showed the highest sensitivity of the B. cinerea isolates complex to cinnamon extract, and the lowest to laurel extract. In contrast, laurel extract caused the most changes of morphological attributes in the isolates. Five B. cinerea isolates from plant hosts of raspberry, cabbage, apple, bell pepper, and rose were grouped statistically according to their sensitivity to laurel extract. Meanwhile, the bell pepper isolate separated from the isolate complex based on its sensitivity to clove extract, and the strawberry and apple isolates based on their sensitivity to cinnamon extract.
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Colucci G, Santamaria-Echart A, Silva SC, Fernandes IPM, Sipoli CC, Barreiro MF. Development of Water-in-Oil Emulsions as Delivery Vehicles and Testing with a Natural Antimicrobial Extract. Molecules 2020; 25:E2105. [PMID: 32365923 PMCID: PMC7248747 DOI: 10.3390/molecules25092105] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 04/24/2020] [Accepted: 04/29/2020] [Indexed: 12/04/2022] Open
Abstract
Water-in-oil (W/O) emulsions have high potential for several industrial areas as delivery systems of hydrophilic compounds. In general, they are less studied than oil-in-water (O/W) systems, namely in what concerns the so-called fluid systems, partly due to problems of instability. In this context, this work aimed to produce stable W/O emulsions from a natural oil, sweet almond oil, to be further tested as vehicles of natural hydrophilic extracts, here exemplified with an aqueous cinnamon extract. Firstly, a base W/O emulsion using a high-water content (40/60, v/v) was developed by testing different mixtures of emulsifiers, namely Tween 80 combined with Span 80 or Span 85 at different contents. Among the tested systems, the one using a 54/46 (v/v) Span 80/Tween 80 mixture, and subjected to 12 high-pressure homogenizer (HPH) cycles, revealed to be stable up to 6 months, being chosen for the subsequent functionalization tests with cinnamon extract (1.25-5%; w/v; water-basis). The presence of cinnamon extract leaded to changes in the microstructure as well as in the stability. The antimicrobial and antioxidant analysis were evidenced, and a sustained behavior compatible with an extract distribution within the two phases, oil and water, in particular for the higher extract concentration, was observed.
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Affiliation(s)
- Giovana Colucci
- Mountain Research Center (CIMO), Polytechnic Institute of Bragança, Santa Apolónia Campus, 5300-253 Bragança, Portugal; (G.C.); (A.S.-E.); (S.C.S.)
- Department of Chemical Engineering, Federal University of Technology (UTFPR)–Paraná, 86812-460 Apucarana, Brazil;
| | - Arantzazu Santamaria-Echart
- Mountain Research Center (CIMO), Polytechnic Institute of Bragança, Santa Apolónia Campus, 5300-253 Bragança, Portugal; (G.C.); (A.S.-E.); (S.C.S.)
| | - Samara C. Silva
- Mountain Research Center (CIMO), Polytechnic Institute of Bragança, Santa Apolónia Campus, 5300-253 Bragança, Portugal; (G.C.); (A.S.-E.); (S.C.S.)
- Laboratory of Separation and Reaction Engineering—Laboratory of Catalysis and Materials (LSRE/LCM) Department of Chemical Engineering, Faculty of Engineering University of Porto, Dr. Roberto Frias, S/N, 4200-465 Porto, Portugal
| | - Isabel P. M. Fernandes
- Mountain Research Center (CIMO), Polytechnic Institute of Bragança, Santa Apolónia Campus, 5300-253 Bragança, Portugal; (G.C.); (A.S.-E.); (S.C.S.)
| | - Caroline C. Sipoli
- Department of Chemical Engineering, Federal University of Technology (UTFPR)–Paraná, 86812-460 Apucarana, Brazil;
| | - Maria F. Barreiro
- Mountain Research Center (CIMO), Polytechnic Institute of Bragança, Santa Apolónia Campus, 5300-253 Bragança, Portugal; (G.C.); (A.S.-E.); (S.C.S.)
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Liszkowska J, Borowicz M, Paciorek-Sadowska J, Isbrandt M, Czupryński B, Moraczewski K. Assessment of Photodegradation and Biodegradation of RPU/PIR Foams Modified by Natural Compounds of Plant Origin. Polymers (Basel) 2019; 12:E33. [PMID: 31878118 PMCID: PMC7023613 DOI: 10.3390/polym12010033] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Revised: 12/17/2019] [Accepted: 12/18/2019] [Indexed: 11/23/2022] Open
Abstract
Four types of rigid polyurethane-polyisocyanurate foams (RPU/PIR) were obtained. Three of them were modified by powder fillers, such as cinnamon extract (C10 foam), green coffe extract (KZ10), and cocoa extract (EK10) in an amount of 10 wt %. The last foam was obtained without a filler (W foam). The basic properties and thermal properties of obtained foams were examined. All foams were subjected to degradation in the climatic chamber acting on samples of foams in a defined temperature, humidity, and UV radiation for 7, 14, and 21 days. The physico-mechanical properties of foams were tested. The compressive strength of degraded foams after 7, 14, and 21 days was compared with the compressive strength of nondegraded foams (0 days). The chosen properties of degraded foams, such as cellular structure by scanning electron microscopy (SEM) and changes of chemical structure by FTIR spectroscopy were compared. The obtained foams were also subjected to degradation in a circulating air dryer in an increased temperature (120 °C) for 48 h. Additionally, W, C10, ZK10, EK10 foams were placed in a soil environment and subjected to 28 days biodegradation process. The biochemical oxygen demand (BOD), the theoretical oxygen demand (TOD), and the degree of biodegradation (Dt) of foams were determined in this measurment. Test results showed that the compressive strength of foams decreased with the longer time of foam degradation in the conditioner. The foam subjected to degradation darkened and became more red and yellow in color. The addition of natural compounds of plant origin to foams increased their susceptibility to biodegradation.
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Affiliation(s)
- Joanna Liszkowska
- Department of Chemistry and Technology of Polyurethanes, Institute of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland; (M.B.); (J.P.-S.); (M.I.); (B.C.)
| | - Marcin Borowicz
- Department of Chemistry and Technology of Polyurethanes, Institute of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland; (M.B.); (J.P.-S.); (M.I.); (B.C.)
| | - Joanna Paciorek-Sadowska
- Department of Chemistry and Technology of Polyurethanes, Institute of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland; (M.B.); (J.P.-S.); (M.I.); (B.C.)
| | - Marek Isbrandt
- Department of Chemistry and Technology of Polyurethanes, Institute of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland; (M.B.); (J.P.-S.); (M.I.); (B.C.)
| | - Bogusław Czupryński
- Department of Chemistry and Technology of Polyurethanes, Institute of Materials Engineering, Kazimierz Wielki University, J.K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland; (M.B.); (J.P.-S.); (M.I.); (B.C.)
| | - Krzysztof Moraczewski
- Department of Polymer Materials Engineering, Institute of Materials Engineering, Kazimierz Wielki University, J. K. Chodkiewicza Street 30, 85-064 Bydgoszcz, Poland;
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Ose R, Tu J, Schink A, Maxeiner J, Schuster P, Lucas K, Saloga J, Bellinghausen I. Cinnamon extract inhibits allergen-specific immune responses in human and murine allergy models. Clin Exp Allergy 2019; 50:41-50. [PMID: 31573731 DOI: 10.1111/cea.13507] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 09/16/2019] [Accepted: 09/16/2019] [Indexed: 12/16/2022]
Abstract
BACKGROUND Ceylon cinnamon has been shown to possess anti-inflammatory properties in many diseases including allergic inflammation. OBJECTIVE The aim of this study was to analyse in more detail the effects of cinnamon extract (CE) and its major compounds p-cymene and trans-cinnamaldehyde (CA) on allergen-specific immune responses in vitro and in vivo. METHODS Therefore, monocyte-derived mature dendritic cells (DC) from grass or birch pollen allergic donors were pulsed with the respective allergen in the presence or absence of CE, p-cymene, CA or the solvent ethanol and co-cultured with autologous CD4+ T cells. Furthermore, basophil activation test was performed with or without CE or ethanol treatment. For the in vivo experiments, BALB/c mice were immunized with ovalbumin (OVA) and orally treated with CE or ethanol. RESULTS Addition of CE, p-cymene or CA, but not ethanol significantly inhibited DC maturation and subsequent allergen-specific T cell proliferation as well as Th1 and Th2 cytokine production. Sulphidoleukotriene release and CD63 expression by basophils were also significantly diminished after addition of CE. In vivo, treatment of OVA-sensitized mice with CE led to a significant shift from OVA-specific IgE towards IgG2a production and to a strong inhibition of OVA-specific proliferation. Moreover, airway inflammation as well as anaphylaxis after intranasal or systemic allergen challenge was significantly reduced in CE-treated mice. Furthermore, topical application of CE prevented calcipotriol-induced atopic dermatitis-like inflammation in these mice. CONCLUSIONS AND CLINICAL RELEVANCE Taken together, our data indicate that the anti-inflammatory effect of cinnamon might be exploited for treatment of allergic inflammation, which needs to be further investigated.
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Affiliation(s)
- Robert Ose
- Department of Dermatology, University Medical Center, Mainz, Germany
| | - Jessica Tu
- Department of Dermatology, University Medical Center, Mainz, Germany
| | - Anne Schink
- Max Planck Institute for Chemistry, Mainz, Germany
| | - Joachim Maxeiner
- Asthma Core Facility, Research Center for Immunotherapy (FZI), Mainz, Germany
| | - Petra Schuster
- Asthma Core Facility, Research Center for Immunotherapy (FZI), Mainz, Germany
| | - Kurt Lucas
- Max Planck Institute for Chemistry, Mainz, Germany
| | - Joachim Saloga
- Department of Dermatology, University Medical Center, Mainz, Germany
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Zhang K, Han ES, Dellinger TH, Lu J, Nam S, Anderson RA, Yim JH, Wen W. Cinnamon extract reduces VEGF expression via suppressing HIF-1α gene expression and inhibits tumor growth in mice. Mol Carcinog 2016; 56:436-446. [PMID: 27253180 DOI: 10.1002/mc.22506] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 05/20/2016] [Accepted: 05/31/2016] [Indexed: 01/17/2023]
Abstract
Although many anti-VEGF agents are available for cancer treatment, side effects of these agents limit their application for cancer treatment and prevention. Here we studied the potential use of a diet-based agent as an inhibitor for VEGF production. Using a VEGF reporter assay, our data showed that an extract from cinnamon (CE) was a potent inhibitor of VEGF production in human cancer cells and suggested inhibition might be mediated through the suppression of HIF-1α gene expression and protein synthesis. Furthermore, CE treatment was found to inhibit expression and phosphorylation of STAT3 and AKT, which are key factors in the regulation of HIF-1α expression, and significantly reduce angiogenesis potential of cancer cells by migration assay. Consistent with these results, we observed significant suppression of VEGF expression, blood vessel formation, and tumor growth in a human ovarian tumor model in mice treated with CE. Cinnamaldehyde, a major component in cinnamon, was identified as one active component in CE that inhibits VEGF expression. Taken together, our findings provide a novel mechanism underlying anti-angiogenic and anti-tumor actions of CE and support the potential use of CE in cancer prevention and treatment. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Keqiang Zhang
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California.,Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
| | - Ernest S Han
- Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
| | - Thanh H Dellinger
- Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
| | - Jianming Lu
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California.,Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
| | - Sangkil Nam
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California
| | - Richard A Anderson
- U.S. Department of Agriculture, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Agricultural Research Service, Beltsville, Maryland
| | - John H Yim
- Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
| | - Wei Wen
- Department of Molecular Medicine, Beckman Research Institute of City of Hope, Duarte, California.,Department of Surgery, Beckman Research Institute of City of Hope, Duarte, California
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Beejmohun V, Peytavy-Izard M, Mignon C, Muscente-Paque D, Deplanque X, Ripoll C, Chapal N. Acute effect of Ceylon cinnamon extract on postprandial glycemia: alpha-amylase inhibition, starch tolerance test in rats, and randomized crossover clinical trial in healthy volunteers. BMC Complement Altern Med 2014; 14:351. [PMID: 25249234 PMCID: PMC4246455 DOI: 10.1186/1472-6882-14-351] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 09/15/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Postprandial hyperglycemia is a known risk factor for the development of several health disorders including type 2 diabetes, obesity, oxidative stress, and cardiovascular diseases. One encouraging approach for a better control of postprandial glycemia is to reduce carbohydrate digestion. Cinnamon extracts have been known for managing blood glucose. However, their effects on inhibiting digestion of carbohydrate have been poorly analyzed to date. The aim of this study was to investigate the acute effect of a specific Ceylon cinnamon hydro-alcoholic extract (CCE) on carbohydrate digestion and post-meal blood glucose reduction. METHODS In vitro enzymatic assays and in vivo starch tolerance tests in rats were designed as preclinical assays. Then, a randomized, double-blind, placebo-controlled, cross-over clinical trial was conducted in 18 healthy female and male volunteers. Following the intake of 1 g of CCE, the subjects ate a standardized meal. Blood samples were collected during the 2 hours following the meal to measure glucose and insulin concentrations. Areas under the curves were calculated and statistical differences between the CCE and placebo groups were analyzed using the Mann Whitney-Wilcoxon test. RESULTS CCE has demonstrated in the in vitro study that it inhibited pancreatic alpha-amylase activity with an IC50 of 25 μg/mL. In the in vivo study, CCE was shown to acutely reduce the glycemic response to starch in a dose-dependent manner in rats. This effect was significant from the dose of 12.5 mg/kg of body weight. In both, the in vitro and in vivo studies, the hydro-alcoholic extract has shown to be more efficacious than the aqueous extract. In the human clinical trial, 1 g of CCE lowered the area under the curve of glycemia between 0 and 120 min by 14.8% (P = 0.15) and between 0 and 60 min by 21.2% (P < 0.05) compared to the placebo. This effect occurred without stimulating insulin secretion. No adverse effects were reported. CONCLUSION These results suggest that Ceylon cinnamon hydro-alcoholic extract (CCE) may provide a natural and safe solution for the reduction of postprandial hyperglycemia and therefore help to reduce the risks of developing metabolic disorders. TRIAL REGISTRATION ClinicalTrials.gov NCT02074423 (26/02/2014).
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Affiliation(s)
- Vickram Beejmohun
- />Dialpha SAS, Parc Agropolis 2, 2196 Boulevard de la Lironde, Montferrier sur Lez, 34980 France
| | - Marie Peytavy-Izard
- />Dialpha SAS, Parc Agropolis 2, 2196 Boulevard de la Lironde, Montferrier sur Lez, 34980 France
| | - Cyril Mignon
- />Dialpha SAS, Parc Agropolis 2, 2196 Boulevard de la Lironde, Montferrier sur Lez, 34980 France
| | | | - Xavier Deplanque
- />Naturalpha SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, Loos, 59120 France
| | - Christophe Ripoll
- />Naturalpha SAS, Parc Eurasanté, 885 Avenue Eugène Avinée, Loos, 59120 France
| | - Nicolas Chapal
- />Dialpha SAS, Parc Agropolis 2, 2196 Boulevard de la Lironde, Montferrier sur Lez, 34980 France
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Assadollahi V, Parivar K, Roudbari NH, Khalatbary AR, Motamedi M, Ezatpour B, Dashti GR. The effect of aqueous cinnamon extract on the apoptotic process in acute myeloid leukemia HL-60 cells. Adv Biomed Res 2013; 2:25. [PMID: 23977653 PMCID: PMC3748636 DOI: 10.4103/2277-9175.108001] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2012] [Accepted: 08/27/2012] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Acute promyelocytic leukemia (APL) is an acute leukemia diagnosed by translocation of chromosomes 15 and 17 [T (15,17)] and aggregation of neoplastic promyelocytes which are incapable of being converted into mature cells. Today, many tend to use medicinal herbs in studies and clinical applications for treatment of cancers. Cinnamon with scientific name "cinnamomumzelanicum" is a shrub of Laurales order, lauraceae family with cinnamomum genus. It is a medicinal shrub with anti-proliferation effect on tumor cells. This study was conducted to determine the effects of aqueous cinnamon extract on HL-60 cells as a model for APL. MATERIALS AND METHODS In this in vitro experimental study, HL-60 cell line was cultured under the influence of cinnamon extract's concentrations of 0.01, 0.1, 1, and 2 mg/ml in with intervals of 24, 48, and 72 h. Growth inhibition and toxic effects of cinnamon extract were evaluated through tetrazolium salt reduction. The effect of this herb on the cell cycle was studied by flow cytometry. The Hoechst stain was used to detect apoptotic cell nuclei. RESULTS Cinnamon extract inhibited the growth of HL-60 cells as correlated with concentration and time. After 72 h of treating HL-60 cells with 0.01 mg/l cinnamon extract, the growth of cells was inhibited by 90.1%. Cinnamon extract stopped the cell cycle in G1 phase and the Hoechst staining verified the apoptotic process in those cells. CONCLUSION Considering the inhibitory property of cinnamon extract, we recommend it as a single drug or besides other medications for treating promyelocytic leukemia.
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Affiliation(s)
- Vahideh Assadollahi
- Razi Herbal Medicines Research Center, Lorestan University of Medical sciences, Khorramabad, Iran
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