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Fang Y, Zheng Y, Chi C, Jiang S, Qin W, Zhang Y, Liu H, Chen Q. PAA-PU Janus Hydrogels Stabilized by Janus Particles and its Interfacial Performance During Hemostatic Processing. Adv Healthc Mater 2024; 13:e2303802. [PMID: 38341630 DOI: 10.1002/adhm.202303802] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Hydrogel is a very promising dressing for hemostasis and wound healing due to its good adhesion and long-term moist environment. However, secondary injury caused by tissue adhesion due to homogeneous hydrogel cannot be ignored. The obvious interface existing in Janus hydrogel will weaken its asymmetric function. Here, a hierarchical adhesive polyacrylic acid-polyurushiol water-oil Janus hydrogel (JPs@PAA-PU) without adhesive layer is fabricated by one-pot method in the stabilization of polystyrene@silica-siliver Janus particles (JPs). The morphological structure, mechanical properties, anisotropic chemical composition, and adhesion performance, in vivo, and in vitro hemostatic properties of Janus hydrogel are investigated. Result shows that the obtained Janus hydrogel possesses obvious compartmentalization in microstructure, functional groups, and chemical elements. Janus hydrogel is provided with asymmetric interfacial toughness with top 52.45 ± 2.29 Kpa and bottom 7.04 ± 0.88 Kpa on porcine liver. The adhesion properties of PAA side to tissue, red blood cells and platelets, promoting effect of PU side on coagulation cascade reaction and its physical battier endow Janus hydrogel with shorter hemostatic time and less blood loss than control group. It also exhibits excellent antibacterial effects against Escherichia coli and Staphylococcus aureus (>90%). Janus hydrogel possesses biosafety, providing safety guarantee for clinical applications in the future.
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Affiliation(s)
- Yan Fang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Yanyan Zheng
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Chongyi Chi
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Sai Jiang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Wanbang Qin
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Yicheng Zhang
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Haiqing Liu
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P. R. China
| | - Qinhui Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou, 350007, P. R. China
- Fujian Provincial Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou, 350007, P. R. China
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Lee Y, Lee J, Lee KB, Lee WY, Lee Y. Quantitative Detection of Thitsiol and Urushiol as Markers from the Gluta usitata Lacquer Tree Using HPLC. Molecules 2023; 29:149. [PMID: 38202732 PMCID: PMC10779686 DOI: 10.3390/molecules29010149] [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: 12/01/2023] [Revised: 12/19/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
Lacquer sap has been traditionally used in coatings and artwork. Suitable types of lacquer are required to preserve and restore artifacts. Recently, unsuitable cashew nut shell liquid (CNSL) has often been mixed with lacquer sap, so it is necessary to identify the characteristics of lacquer sap by the production area. However, research is still focused on urushiol and laccol. In this study, Myanmarese lacquer sap collected from Gluta usitata, which contains thitsiol as the main component, was analyzed by HPLC to quantify thitsiol using the standards 3-(10-phenyldecyl) benzene-1,2-diol (thitsiol 16) and 3-(8Z,11Z-pentadecadienyl)-benzenediol (urushiol 15:2) as markers, and calibration curves were plotted. The coefficients of determination (R2) for thitsiol 16 and urushiol 15:2 were 0.9985 and 0.9983, respectively. In addition, a blind test was conducted to confirm that accurate quantitative analysis was possible even when Myanmarese lacquer was mixed with lacquer from another production area, which contained urushiol as the main component, and CNSL, which contained cardol, a completely different catechol. Quantitative analysis of thitsiol 16 and urushiol 15:2 in Myanmarese lacquer using HPLC can be used to evaluate the quality of lacquer sap and for more sophisticated activities such as restoration by classifying differences in lacquer sap by the production area.
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Affiliation(s)
- Youngseo Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; (Y.L.); (J.L.)
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea;
| | - Jihye Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; (Y.L.); (J.L.)
| | - Kang-Bong Lee
- Green City Technology Institute, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea;
| | - Won-Yong Lee
- Department of Chemistry, Yonsei University, Seoul 03722, Republic of Korea;
| | - Yeonhee Lee
- Advanced Analysis and Data Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea; (Y.L.); (J.L.)
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Xu K, Xie H, Sun C, Lin W, You Z, Zheng G, Zheng X, Xu Y, Chen J, Lin F. Sustainable Coating Based on Zwitterionic Functionalized Poly urushiol with Antifouling and Antibacterial Properties. Molecules 2023; 28:8040. [PMID: 38138530 PMCID: PMC10746087 DOI: 10.3390/molecules28248040] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 12/04/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023] Open
Abstract
Zwitterionic polymer coatings facilitate the formation of hydration layers via electrostatic interactions on their surfaces and have demonstrated efficacy in preventing biofouling. They have emerged as a promising class of marine antifouling materials. However, designing multifunctional, environmentally friendly, and natural products-derived zwitterionic polymer coatings that simultaneously resist biofouling, inhibit protein adhesion, exhibit strong antibacterial properties, and reduce algal adhesion is a significant challenge. This study employed two diisocyanates as crosslinkers and natural urushiol and ethanolamine as raw materials. The coupling reaction of diisocyanates with hydroxyl groups was employed to synthesize urushiol-based precursors. Subsequently, sulfobetaine moieties were introduced into the urushiol-based precursors, developing two environmentally friendly and high-performance zwitterionic-functionalized polyurushiol antifouling coatings, denoted as HUDM-SB and IPUDM-SB. The sulfobetaine-functionalized polyurushiol coating exhibited significantly enhanced hydrophilicity, with the static water contact angle reduced to less than 60°, and demonstrated excellent resistance to protein adhesion. IPUDM-SB exhibited antibacterial efficacy up to 99.9% against common Gram-negative bacteria (E. coli and V. alginolyticus) and Gram-positive bacteria (S. aureus and Bacillus. sp.). HUDM-SB achieved antibacterial efficacy exceeding 95.0% against four bacterial species. Furthermore, the sulfobetaine moieties on the surfaces of the IPUDM-SB and HUDM-SB coatings effectively inhibited the growth and reproduction of algal cells by preventing microalgae adhesion. This zwitterionic-functionalized polyurushiol coating does not contain antifouling agents, making it a green, environmentally friendly, and high-performance biomaterial-based solution for marine antifouling.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jipeng Chen
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (K.X.); (H.X.); (C.S.); (W.L.); (Z.Y.); (G.Z.); (X.Z.); (Y.X.)
| | - Fengcai Lin
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (K.X.); (H.X.); (C.S.); (W.L.); (Z.Y.); (G.Z.); (X.Z.); (Y.X.)
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ISOBE H, HIRAMA M. Glancing at the birth of a galaxy of scientists from Rikō Majima. Proc Jpn Acad Ser B Phys Biol Sci 2023; 99:335-351. [PMID: 37648504 PMCID: PMC10749390 DOI: 10.2183/pjab.99.019] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 06/06/2023] [Indexed: 09/01/2023]
Abstract
Rikō Majima published seven papers in this journal, and seeing these papers and their surrounding contexts allows us to glance at the birth of a galaxy of scientists.
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Affiliation(s)
- Hiroyuki ISOBE
- Department of Chemistry, The University of Tokyo, Tokyo, Japan
| | - Masahiro HIRAMA
- Professor Emeritus, Tohoku University, Sendai, Miyagi, Japan
- Advisor, GlyTech, Inc., Sendai Laboratory, Sendai, Miyagi, Japan
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Shiu BC, Wulin S, Yuan QY, Zhang Y, Yu Z. Zn 2+ @Polyvinylpyrrolidone and Urushiol Preparation of Nanofibrous Membranes and Their Synergistic Effect. Macromol Biosci 2023; 23:e2300233. [PMID: 37483109 DOI: 10.1002/mabi.202300233] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 07/09/2023] [Accepted: 07/19/2023] [Indexed: 07/25/2023]
Abstract
In this study, lacquer is gathered from a lacquer tree and rotary evaporation is used to remove impurities to obtain urushiol. Next, 10 mL of anhydrous ethanol serves as the solvent for blending polyvinylpyrrolidone (PVP) at a specified content (0.7 g and 0.2-0.7 g urushiol) to form an electrospinning solution. Electrospinning is carried out with a voltage of 18 kV to prepare PVP/urushiol nanofibrous membranes. At a ratio of 7/4, the PVP/urushiol nanofibrous membranes are not eroded in 98% sulfuric acid and these membranes also demonstrate a 50-60% antibacterial effect against Staphylococcus aureus and Escherichia coli. Moreover, the antibacterial effect can be boosted to 98% with the incorporation of zinc ions. The results indicate that anhydrous ethanol can remove the sensitization of urushiol from PVP/urushiol membranes. Furthermore, animal test results indicate that when rats are in contact with PVP/urushiol anhydrous ethanol for 48 h, their skins are free from dark brown skin allergy. The presence of PVP eliminates the sensitization of urushiol, and the nanofibrous membranes demonstrate low toxicity. Hence, urushiol is the only natural material that enables PVP to withstand 98% sulfuric acid as well as acquire hydrolyzability, thereby qualify PVP as a medical material.
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Affiliation(s)
- Bing-Chiuan Shiu
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Shihan Wulin
- Fujian Engineering Research Center of New Chinese lacquer Material College of Material and Chemical Engineering, Minjiang University, Fuzhou, Fujian, 350108, China
| | - Qian-Yu Yuan
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Ying Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Zhicai Yu
- Fujian Key Laboratory of Novel Functional Fibers and Materials, Minjiang University, Fuzhou, Fujian, 350108, China
- Hubei Key Laboratory of Biomass Fibers and Eco-dyeing and Finishing, College of Chemistry and Chemical Engineering, Wuhan Textile University, Wuhan, 430200, China
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6
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Zhao Y, Xu X, Li L, Zheng K, Wang X, Zhang M, Xu Y. Effect of etchant containing an Urushiol monomer from lacquer sap on dentin biostability and bonding performance. Front Bioeng Biotechnol 2023; 11:1251655. [PMID: 37901840 PMCID: PMC10613032 DOI: 10.3389/fbioe.2023.1251655] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Accepted: 08/10/2023] [Indexed: 10/31/2023] Open
Abstract
Objectives: This study aimed to evaluate the effectiveness of urushiol as an additive to surface acid etchant on dentin structure, by assessing the biostability of dentin, and determine the bonding strengths of dentin and enamel to the composite in the complicated oral microecology. Methods: Etchants with different concentrations of urushiol (0.5, 1, or 3 wt%) were formulated and tested for their bonding performance. Demineralized dentin beams that were etched with experimental etchants were incubated in simulated body fluid solutions by evaluating the weight decrement after 1 month. The effects of urushiol on dentin and matrix metalloproteinases were confirmed by scanning electron microscopy (SEM). Moreover, the antibiotic actions of urushiol on the common cariogenic bacteria Streptococcus mutans, Streptococcus sanguinis, and Streptococcus gordonii as well as the biofilm were evaluated, and its effect on bacterial morphology was observed by scanning electron microscopy. Finally, enamel and dentin specimens were prepared from human molars to determine the depth of demineralization by the etchants and the relationship with the resin bond strengths to enamel and dentin (μTBS) and the morphology of the bonding interface. Results: Urushiol could interact with dentine and inhibit collagenase activity, resulting in biostable dentine. The application of the etchants containing 0.5, 1, or 3 wt% urushiol significantly improved the durability of the dentin bonding interface with its instinctive antibacterial property (p < 0.05). Conclusion: Urushiol not only improves dentin stability by interacting with collagen and inactivating MMP activity but also plays a role in the antibacterial effects in the complicated oral microecology. The effectiveness of urushiol etchant prolongs the longevity of bonded dental restorations without compromising clinical operation time.
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Affiliation(s)
- Ying Zhao
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Prosthodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Xuanwen Xu
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Periodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Lu Li
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Periodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Kai Zheng
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Xiaoqian Wang
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Department of Periodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
| | - Ming Zhang
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
| | - Yan Xu
- Jiangsu Province Key Laboratory of Oral Diseases, Nanjing Medical University, Nanjing, China
- Jiangsu Province Engineering Research Center of Stomatological Translational Medicine, Nanjing, China
- Department of Periodontics, The Affiliated Stomatological Hospital of Nanjing Medical University, Nanjing, China
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7
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Argo KA, Massey RC, Luth SK, Herrington JM, Lane AQ, Murray KA. Evaluation and Management of Toxicodendron Dermatitis in the Emergency Department: A Review of Current Practices. Wilderness Environ Med 2023; 34:388-392. [PMID: 37120383 DOI: 10.1016/j.wem.2023.03.001] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 05/01/2023]
Abstract
Toxicodendron dermatitis is an underappreciated disease seen in the emergency department. Although self-limiting, symptoms can be distressing and can last for weeks if untreated, particularly with re-exposure. Continuing research has improved our understanding of specific inflammatory markers that are associated with exposure to urushiol-the compound responsible for Toxicodendron dermatitis-although consensus for treatment remains varied and poorly supported. Owing to the lack of recent primary literature on the topic, many providers rely on historical precedent, expert opinion, and personal experience when treating this disease. This article provides a narrative review of the literature currently available on the effects of urushiol on key molecular and cellular functions and the prevention and treatment of Toxicodendron dermatitis.
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Affiliation(s)
- Kenneth A Argo
- Department of Emergency Medicine, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Rebecca C Massey
- Department of Emergency Medicine, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Sadaf K Luth
- Oklahoma State University Center for Health Sciences, Tulsa, OK.
| | - James M Herrington
- Department of Emergency Medicine, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Aaron Q Lane
- Department of Emergency Medicine, Oklahoma State University Center for Health Sciences, Tulsa, OK
| | - Kelly A Murray
- Department of Emergency Medicine, Oklahoma State University Center for Health Sciences, Tulsa, OK
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8
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Lin F, Zhu Y, You Z, Li W, Chen J, Zheng X, Zheng G, Song Z, You X, Xu Y. Ultrastrong and Tough Urushiol-Based Ionic Conductive Double Network Hydrogels as Flexible Strain Sensors. Polymers (Basel) 2023; 15:3219. [PMID: 37571113 PMCID: PMC10421297 DOI: 10.3390/polym15153219] [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: 07/07/2023] [Revised: 07/24/2023] [Accepted: 07/27/2023] [Indexed: 08/13/2023] Open
Abstract
Ionic conductive hydrogels have attracted increasing research interest in flexible electronics. However, the limited resilience and poor fatigue resistance of current ionic hydrogels significantly restrict their practical application. Herein, an urushiol-based ionic conductive double network hydrogel (PU/PVA-Li) was developed by one-pot thermal initiation polymerization assisted with freeze-thaw cycling and subsequent LiCl soaking. Such a PU/PVA-Li hydrogel comprises a primary network of covalently crosslinked polyurushiol (PU) and a secondary network formed by physically crosslinked poly(vinyl alcohol) (PVA) through crystalline regions. The obtained PU/PVA-Li hydrogel demonstrates exceptional mechanical properties, including ultrahigh strength (up to 3.4 MPa), remarkable toughness (up to 1868.6 kJ/m3), and outstanding fatigue resistance, which can be attributed to the synergistic effect of the interpenetrating network structure and dynamic physical interactions between PU and PVA chains. Moreover, the incorporation of LiCl into the hydrogels induces polymer chain contraction via ionic coordination, further enhancing their mechanical strength and resilience, which also impart exceptional ionic conductivity (2.62 mS/m) to the hydrogels. Based on these excellent characteristics of PU/PVA-Li hydrogel, a high-performance flexible strain sensor is developed, which exhibits high sensitivity, excellent stability, and reliability. This PU/PVA-Li hydrogel sensor can be effectively utilized as a wearable electronic device for monitoring various human joint movements. This PU/PVA-Li hydrogel sensor could also demonstrate its great potential in information encryption and decryption through Morse code. This work provides a facile strategy for designing versatile, ultrastrong, and tough ionic conductive hydrogels using sustainable natural extracts and biocompatible polymers. The developed hydrogels hold great potential as promising candidate materials for future flexible intelligent electronics.
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Affiliation(s)
- Fengcai Lin
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Yiwen Zhu
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Zixuan You
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Wenyan Li
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Jipeng Chen
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Xiaoxiao Zheng
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Guocai Zheng
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
| | - Zifan Song
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China;
| | - Xinda You
- College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350108, China;
| | - Yanlian Xu
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, College of Materials and Chemical Engineering, Minjiang University, Fuzhou 350108, China; (F.L.); (Y.Z.); (Z.Y.); (W.L.); (J.C.); (X.Z.); (G.Z.)
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9
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Zhao J, Chen J, Zheng X, Lin Q, Zheng G, Xu Y, Lin F. Urushiol-Based Benzoxazine Containing Sulfobetaine Groups for Sustainable Marine Antifouling Applications. Polymers (Basel) 2023; 15:polym15102383. [PMID: 37242960 DOI: 10.3390/polym15102383] [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: 04/21/2023] [Revised: 05/11/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Benzoxazine resins are new thermosetting resins with excellent thermal stability, mechanical properties, and a flexible molecular design, demonstrating promise for applications in marine antifouling coatings. However, designing a multifunctional green benzoxazine resin-derived antifouling coating that combines resistance to biological protein adhesion, a high antibacterial rate, and low algal adhesion is still challenging. In this study, a high-performance coating with a low environmental impact was synthesized using urushiol-based benzoxazine containing tertiary amines as the precursor, and a sulfobetaine moiety into the benzoxazine group was introduced. This sulfobetaine-functionalized urushiol-based polybenzoxazine coating (poly(U-ea/sb)) was capable of clearly killing marine biofouling bacteria adhered to the coating surface and significantly resisting protein attachment. poly(U-ea/sb) exhibited an antibacterial rate of 99.99% against common Gram negative bacteria (e.g., Escherichia coli and Vibrio alginolyticus) and Gram positive bacteria (e.g., Staphylococcus aureus and Bacillus sp.), with >99% its algal inhibition activity, and it effectively prevented microbial adherence. Here, a dual-function crosslinkable zwitterionic polymer, which used an "offensive-defensive" tactic to improve the antifouling characteristics of the coating was presented. This simple, economic, and feasible strategy provides new ideas for the development of green marine antifouling coating materials with excellent performance.
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Affiliation(s)
- Jing Zhao
- College of Chemistry and Materials, Fujian Normal University, Fuzhou 350007, China
- Fujian Key Laboratory of Polymer Materials, Fujian Normal University, Fuzhou 350007, China
- Fujian Provincial Key Laboratory of Advanced Oriented Chemical Engineering, Fujian Normal University, Fuzhou 350007, China
| | - Jipeng Chen
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
| | - Xiaoxiao Zheng
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
| | - Qi Lin
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
| | - Guocai Zheng
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
| | - Yanlian Xu
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
| | - Fengcai Lin
- Fujian Engineering Research Center of New Chinese Lacquer Materials, Minjiang University, Fuzhou 350108, China
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10
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Zhao Y, He X, Wang H, Wang H, Shi Z, Zhu S, Cui Z. Polyphenol-Enriched Extract of Lacquer Sap Used as a Dentine Primer with Benefits of Improving Collagen Cross-Linking and Antibacterial Functions. ACS Biomater Sci Eng 2022; 8:3741-3753. [PMID: 35793160 PMCID: PMC9472228 DOI: 10.1021/acsbiomaterials.1c01287] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Commercial dentin adhesive systems are applied to restorations due to their resistant bonding properties, but they suffer from the lack of bioactivity and are prone to hydrolysis. Therefore, to overcome these limitations, an eco-friendly natural monomer, urushiol, was adopted to be a primer in dentin bonding due to its interaction with collagen and antibacterial activity, preventing further hydrolysis development. First, urushiol was determined to be capable of improving the biological stability of dentin collagen through cross-linking. Using high-fidelity analytical chemistry techniques, such as Fourier transform infrared spectroscopy, we quantified the effects of urushiol on collagen molecules. It could also effectively decrease weight loss after collagenase ingestion by improving the stability of dentin. Moreover, urushiol inhibited Streptococcus mutans growth as well as its biofilm formation. Finally, we demonstrated that the urushiol primer could improve the bonding strength, particularly after aging. The cross-linking and antibacterial functions of urushiol have provided promising developmental prospects for biomaterials in dentin adhesion.
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Affiliation(s)
- Ying Zhao
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Xi He
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Han Wang
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Huimin Wang
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zuosen Shi
- State
Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130021, P. R.
China
| | - Song Zhu
- Department
of Prosthetic Dentistry, School and Hospital of Stomatology, Jilin University, Changchun 130021, P. R. China
| | - Zhanchen Cui
- State
Key Lab of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130021, P. R.
China
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11
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Rabinovich EP, Barquin JN, Abernathy RE, Koester RJ. Black-Spot Toxicodendron Dermatitis With Varied Presentation. Wilderness Environ Med 2022; 33:351-354. [PMID: 35718643 DOI: 10.1016/j.wem.2022.05.002] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 05/09/2022] [Accepted: 05/09/2022] [Indexed: 11/19/2022]
Abstract
This article describes the clinical presentation, differential diagnosis, and treatment of 2 unrelated cases with different presentations of black-spot Toxicodendron dermatitis. In the first case, a healthy 7-y-old male presented with a rash consisting of black dots with localized surrounding erythema on the left arm. The rash then progressed to a vesicular, pinpoint, raised rash spreading to the face, arms, and neck. In the second case, a 4-y-old male presented with non-pruritic, black, flat, non-erythematous lesions that did not progress. This patient's older sibling had been diagnosed with poison ivy 1 wk prior, and they attended the same child care where the poison ivy was thought to be acquired. In both cases, diagnosis of black-spot Toxicodendron dermatitis was made. The black spot of Toxicodendron dermatitis is caused by urushiol oxidation on exposure to air. The subject may or may not go on to develop allergic contact dermatitis after the exposure. Diagnosis of this dermatitis is made on clinical presentation, with careful consideration of history, distribution, and lesion morphology. When allergic dermatitis does develop as in the first case, systemic treatment with oral steroids is recommended. In both of these cases the black dots completely resolved in 2 to 3 wk. Dermatologic referral for dermoscopy and biopsy may be necessary if the dermatosis does not resolve as anticipated.
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Affiliation(s)
| | | | - Rebecca E Abernathy
- Department of Pediatrics, University of Virginia Health System, Charlottesville, VA.
| | - Robert J Koester
- School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, UK
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12
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Chang CW, Liao JY, Lu KT. Syntheses and Characteristics of Urushiol-Based Waterborne UV-Cured Wood Coatings. Polymers (Basel) 2021; 13:polym13224005. [PMID: 34833302 PMCID: PMC8622096 DOI: 10.3390/polym13224005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 10/24/2021] [Revised: 11/12/2021] [Accepted: 11/14/2021] [Indexed: 11/16/2022] Open
Abstract
The manufacture and properties of waterborne UV-cured coatings (WUV coatings) by acetone process based on urushiol for wood finishing were investigated. Firstly, epoxide urushiol (EU) was prepared by reacting urushiol with epichlorohydrin. Secondly, the EU was reacted with acrylic acid to obtain acrylic epoxide urushiol (AEU). Next, the prepolymers were synthesized by the reaction of AEU, 2,2-Bis(hydroxymethyl)propionic acid (DMPA), and isophorone diisocyanate (IPDI) and hexamethylene diisocyanate (HDI), respectively, using acetone as a solvent. The prepolymers were further neutralized by triethylamine (TEA) to obtain ionomers and dispersed in the water. After removing the acetone by vacuum distillation, the polyurethane dispersions (PUDs) were obtained. Finally, the WUV coatings were performed by adding a photoinitiator (Irgacure 2959). The products in the synthesized processes and the properties of the WUV coatings were examined. The results showed that the EU, AEU, prepolymers, and ionomers could be synthesized stably. The PUDs synthesized by the IPDI and HDI had a similar solid content of 25.2% and 26.2%, and similar pH values of 7.8 and 7.6. However, the IPDI-containing PUD displayed lower viscosity, smaller particle size, and a more even polydispersity index. The IPDI-containing WUV film displayed a higher hardness, gloss, and lightfastness. The HDI-containing WUV film possessed superior impact resistance. Both IPDI-containing and HDI-containing WUV films showed excellent adhesion, bending resistance, and mass retention, and demonstrated a potential for wood finishing.
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Affiliation(s)
| | | | - Kun-Tsung Lu
- Correspondence: ; Tel.: +886-4-2284-0345 (ext. 122); Fax: +886-4-2287-3628
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13
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Berghea EC, Craiu M, Ali S, Corcea SL, Bumbacea RS. Contact Allergy Induced by Mango ( Mangifera indica): A Relevant Topic? Medicina (Kaunas) 2021; 57:1240. [PMID: 34833457 DOI: 10.3390/medicina57111240] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 11/26/2022]
Abstract
Introduction: The most common clinical manifestation of mango allergy is contact dermatitis, which can be localized or systemic. The sensitising substances that have long been suspected are alk(en)yl catechols and/or alk(en)yl resorcinols. Methods: We reviewed the original articles published on Pubmed, Embase and Cochrane Library before 15 September 2021, on the topic of contact allergy induced by mango and we synthesized the key data. Results: We found 12 case reports and four case series, with a total of 37 patients. Only seven of these cases were reported in patients from mango-cultivating countries, the other 30 were from countries where mango cultivation does not occur, and 26 were also from countries where poison ivy/oak are commonly found. We found that contact dermatitis may occur on the first exposure to mango due to previous sensitisation to urushiol-containing plants. The diagnosis was confirmed by patch testing in some of the cases. There was great heterogeneity between the reagents used. Conclusion: Mango fruit is frequently consumed, but mango induced contact dermatitis, the main hypersensitivity reaction induced by mango, is rare. Further data is necessary for a better understanding of sensitising substances and, consecutively, standardization of patch test reagents.
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14
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Mizuta T, Kasami S, Shigehara Y, Kato M. Urushiol-induced airborne and systemic pustular dermatitis from Japanese lacquer. Contact Dermatitis 2021; 86:62-64. [PMID: 34549435 DOI: 10.1111/cod.13976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/23/2021] [Accepted: 09/19/2021] [Indexed: 11/27/2022]
Affiliation(s)
- Takahiro Mizuta
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Fuchu-shi, Tokyo, Japan
| | - Sachie Kasami
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Fuchu-shi, Tokyo, Japan
| | - Yohya Shigehara
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Fuchu-shi, Tokyo, Japan
| | - Miyuki Kato
- Department of Dermatology, Tokyo Metropolitan Tama Medical Center, Fuchu-shi, Tokyo, Japan
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15
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Zeng L, Cao Y, Yao X, Li G, Lei F, Shi B. [Preparation and application of urushiol methacrylate-bonded silica liquid chromatographic stationary phase]. Se Pu 2020; 38:1257-62. [PMID: 34213095 DOI: 10.3724/SP.J.1123.2020.07039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
A novel stationary phase for high performance liquid chromatography was prepared using urushiol methacrylate as the chromatographic ligand. The mixed urushiol methacrylate was prepared using urushiol and methacryloyl chloride via a substitution reaction and then coated onto the surface of spherical silica by physical adsorption. The spherical silica was chemically modified with 3-methacryloyloxypropyl trimethoxysilane. Then, the urushiol methacrylate-bonded silica stationary phase (USP) was synthesized via the surface radical polymerization of urushiol methacrylate and the pendant vinyl groups onto the surface of the spherical silica. The stationary phase was characterized by Fourier transform infrared spectroscopy, thermogravimetric analysis, scanning electron microscopy, and elemental analysis. The results revealed that the urushiol methacrylate was successfully immobilized on the spherical silica surface after the surface polymerization reaction, and that it had excellent monodispersity. The stationary phases were packed in a stainless-steel hollow column by the slurry packing method, with methanol as the slurry solvent and absolute ethanol as the propelling solvent. The chromatographic performance of the stationary phases were investigated for the separation of Gastrodia elata extract. Acetonitrile-0.05% phosphoric acid solution (3:97, v/v) was employed as the mobile phase at a flow rate of 0.4 mL/min, with the detection wavelength of 220 nm. The separation performance for Fructus evodia extract was also studied, using acetonitrile-water (50:50, v/v) as the mobile phase at a flow rate of 0.5 mL/min, and the detection wavelength was 290 nm. This column showed good separation performance for both these extracts. Out of the five peaks observed for the Gastrodia elata extract, one was attributed to gastrodin, but the other four peaks need to be further verified. Two peaks assignable to evodiamine and rutaecarpine were observed for the Fructus evodia extract. Compared with C18 column, the USP column allowed for more effective separation of the components from the Gastrodia elata extract, with baseline separation; on the other hand, the chromatographic conditions for the separation of the components of the Fructus evodia extract were more environmentally friendly and safer. Because of the low flow rates adopted for the separation of the Gastrodia elata and Fructus evodia extracts, the amount of mobile phase used could be reduced. This study provides not only a new method for the separation and purification of gastrodin and evodiamine in real samples, but also a new strategy for the preparation of chromatographic stationary phases. It expanded the application of raw lacquer in chromatographic separation materials.
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Raison-Peyron N, Aljaber F, Al Ali OA, Dereure O. Mango dermatitis: An unusual cause of eyelid dermatitis in France. Contact Dermatitis 2021; 85:599-600. [PMID: 34170557 DOI: 10.1111/cod.13922] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 06/16/2021] [Accepted: 06/21/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Nadia Raison-Peyron
- Department of Dermatology, Montpellier University Hospital and Montpellier University, Montpellier, France
| | - Faisal Aljaber
- Department of Dermatology, Montpellier University Hospital and Montpellier University, Montpellier, France
| | - Omar Ali Al Ali
- Department of Dermatology, Montpellier University Hospital and Montpellier University, Montpellier, France
| | - Olivier Dereure
- Department of Dermatology, Montpellier University Hospital and Montpellier University, Montpellier, France
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17
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Wu K, Shiu BC, Zhang D, Shen Z, Liu M, Lin Q. Preparation of Nanoscale Urushiol/PAN Films to Evaluate Their Acid Resistance and Protection of Functional PVP Films. Nanomaterials (Basel) 2021; 11:957. [PMID: 33918605 PMCID: PMC8069575 DOI: 10.3390/nano11040957] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Revised: 04/05/2021] [Accepted: 04/06/2021] [Indexed: 01/20/2023]
Abstract
Different amounts of urushiol were added to a fixed amount of polyacrylonitrile (PAN) to make nanoscale urushiol/PAN films by the electrospinning method. Electrospinning solutions were prepared by using dimethylformamide (DMF) as the solvent. Nanoscale urushiol/PAN films and conductive Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)(PEDOT:PSS)/polyvinyl pyrrolidone (PVP) films were prepared by electrospinning. In order to prepare an electrospun sandwich nanoscale film, urushiol/PAN films were deposited as both the top and bottom layers and PEDOT:PSS/PVP film as the inner layer. When the PAN to urushiol ratio was 7:5, the fiber diameter ranged between 150 nm and 200 nm. The single-layer urushiol/PAN film could not be etched after being immersed into 60%, 80%, and 100% sulfuric acid (H2SO4) for 30 min, which indicated the improved acid resistance of the PAN film. The urushiol/PAN film was used to fabricate the sandwich nanoscale films. When the sandwich film was immersed into 80% and 100% H2SO4 solutions for 30 min, the structure remained intact, and the conductive PVP film retained its original properties. Thus, the working environment tolerability of the functional PVP film was increased.
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Affiliation(s)
- Kunlin Wu
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China; (K.W.); (B.-C.S.); (D.Z.); (Z.S.)
- College of Environment and Resources, Fuzhou University, Fuzhou 350108, China;
| | - Bing-Chiuan Shiu
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China; (K.W.); (B.-C.S.); (D.Z.); (Z.S.)
| | - Ding Zhang
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China; (K.W.); (B.-C.S.); (D.Z.); (Z.S.)
- College of Materials Science and Engineering, Fuzhou University, Fuzhou 350108, China
| | - Zhenhao Shen
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China; (K.W.); (B.-C.S.); (D.Z.); (Z.S.)
| | - Minghua Liu
- College of Environment and Resources, Fuzhou University, Fuzhou 350108, China;
| | - Qi Lin
- Fujian Engineering and Research Center of New Chinese Lacquer Materials, Ocean College, Minjiang University, Fuzhou 350108, China; (K.W.); (B.-C.S.); (D.Z.); (Z.S.)
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18
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Donglang G, Tongtong L, Dan C, Chan Z, Changming W, Guang Y, Yan Y, Zongxiang T. Comparative Study on Different Skin Pruritus Mouse Models. Front Med (Lausanne) 2021; 8:630237. [PMID: 33708782 PMCID: PMC7940346 DOI: 10.3389/fmed.2021.630237] [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: 11/17/2020] [Accepted: 01/04/2021] [Indexed: 12/12/2022] Open
Abstract
The animal model is an important tool to study the mechanism of disease formation. Different animal models of pruritus have been adopted based on the purpose of researchers in the study of the itching mechanism. Although the symptoms of various models are quite different, scratching behavior is a key indicator. Therefore, it is necessary to find an animal model that can quickly induce animal scratching and maintain the stability of scratching behavior. In this study, we compared animal models of pruritus induced by four substances and found that the scratching behavior of mice induced by urushiol not only reached the plateau stage quickly but also showed more stability in the plateau phase than that induced by 2,4-dinitrofluorobenzene, oxazolone, and imiquimod. Meanwhile, in the animal model induced by urushiol, the changes of epidermal thickening and inflammatory cell aggregation were also more obvious. In addition, pruritus induced by urushiol is prevalent all over the world, especially in the United States and Europe, involving outdoor groups such as firefighters, forest loggers, and farmers. Therefore, we believe that the urushiol-induced animal model is an ideal choice for the study of the itch formation mechanism and the development of antipruritic drugs.
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Affiliation(s)
- Guan Donglang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Liu Tongtong
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Chen Dan
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhu Chan
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wang Changming
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yu Guang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yang Yan
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tang Zongxiang
- School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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19
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Alipour Tehrany Y, Coulombe J. Mango allergic contact dermatitis. Contact Dermatitis 2021; 85:241-242. [PMID: 33609039 DOI: 10.1111/cod.13818] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/12/2021] [Accepted: 02/17/2021] [Indexed: 11/30/2022]
Affiliation(s)
| | - Jérôme Coulombe
- Division of Dermatology, CHU Sainte Justine, Montreal, Quebec, Canada
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20
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Yu HH, Ham SW, Lee Y. HPLC and ToF‒SIMS Analyses of Toxicodendron vernicifluum Tree Sap Mixed with Other Natural Lacquers. Molecules 2021; 26:molecules26020434. [PMID: 33467697 PMCID: PMC7830298 DOI: 10.3390/molecules26020434] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 12/04/2022] Open
Abstract
Lacquer sap has been used by humans from antiquitywhen it was treated as a luxury item because of its desirable physical properties. In modern times, although access barriers are lower, lacquer is still considered to be rare and valuable. Thus, low quality, inexpensive Vietnamese and Myanmarese lacquers and cashew nutshell liquid are frequently added to the costly Toxicodendron vernicifluum lacquer sap from Korea, China, and Japan. However, these blended lacquers can diminish the quality of artisan works. The Toxicodendron vernicifluum lacquer saps mixed with other natural lacquers were characterized using time-of-flight secondary-ion mass spectrometry (ToF−SIMS) and high-performance liquid chromatography (HPLC). ToF-SIMS provided the chemical structure of the lacquer monomer, copolymerized dimers, trimers, etc. HPLC provided quantitative analysis of the components of a randomly mixed lacquer. These techniques can be used to control the quality of commercial lacquer sap for the Asian lacquer industry and the traditional conservation of ancient objects.
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Affiliation(s)
- Hye Hyun Yu
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Korea;
- Department of Chemistry, Chung-Ang University, Seoul 06974, Korea;
| | - Seung Wook Ham
- Department of Chemistry, Chung-Ang University, Seoul 06974, Korea;
| | - Yeonhee Lee
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Korea;
- Correspondence: ; Tel.: +82-2-958-5971; Fax: +82-2-958-5969
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21
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Jeong HY, Lee TH, Kim JG, Lee S, Moon C, Truong XT, Jeon TI, Moon JH. 3-Pentylcatechol, a Non-Allergenic Urushiol Derivative, Displays Anti- Helicobacter pylori Activity In Vivo. Pharmaceuticals (Basel) 2020; 13:E384. [PMID: 33202739 DOI: 10.3390/ph13110384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/11/2020] [Accepted: 11/11/2020] [Indexed: 12/19/2022] Open
Abstract
We previously reported that 3-pentylcatechol (PC), a synthetic non-allergenic urushiol derivative, inhibited the growth of Helicobacter pylori in an in vitro assay using nutrient agar and broth. In this study, we aimed to investigate the in vivo antimicrobial activity of PC against H. pylori growing in the stomach mucous membrane. Four-week-old male C57BL/6 mice (n = 4) were orally inoculated with H. pylori Sydney Strain-1 (SS-1) for 8 weeks. Thereafter, the mice received PC (1, 5, and 15 mg/kg) and triple therapy (omeprazole, 0.7 mg/kg; metronidazole, 16.7 mg/kg; clarithromycin, 16.7 mg/kg, reference groups) once daily for 10 days. Infiltration of inflammatory cells in gastric tissue was greater in the H. pylori-infected group compared with the control group and lower in both the triple therapy- and PC-treated groups. In addition, upregulation of cytokine mRNA was reversed after infection, upon administration of triple therapy and PC. Interestingly, PC was more effective than triple therapy at all doses, even at 1/15th the dose of triple therapy. In addition, PC demonstrated synergism with triple therapy, even at low concentrations. The results suggest that PC may be more effective against H. pylori than established antibiotics.
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22
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Lott AA, Freed CP, Dickinson CC, Whitehead SR, Collakova E, Jelesko JG. Poison ivy hairy root cultures enable a stable transformation system suitable for detailed investigation of urushiol metabolism. Plant Direct 2020; 4:e00243. [PMID: 32783021 PMCID: PMC7411346 DOI: 10.1002/pld3.243] [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] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 06/06/2020] [Accepted: 06/25/2020] [Indexed: 06/11/2023]
Abstract
Poison ivy (Toxicodendron radicans) is best known for causing exasperating allergenic delayed-contact dermatitis symptoms that last for weeks on persons who have contacted the plant. Urushiols are alkylcatechols produced by poison ivy responsible for causing this dermatitis. While urushiol chemical structures are well known, the metabolic intermediates and genes responsible for their biosynthesis have not been experimentally validated. A molecular genetic characterization of urushiol biosynthesis in poison ivy will require stable genetic transformation and subsequent regeneration of organs that retain the capacity synthesize urushiol. To this end, Agrobacterium rhizogenes was used to generate hormone-independent poison ivy hairy root cultures. Optimal conditions for hairy root formation were skotomorphic poison ivy hypocotyls prick-inoculated with A. rhizogenes, and preferential propagation of cultures with an atypical clumpy hairy root growth habit. The origin of the poison ivy accession used for A. rhizogenes prick-inoculation did not affect the initial formation of calli/hairy root primordia, but rather significantly influenced the establishment of long-term hormone-independent hairy root growth. A. rhizogenes harboring a recombinant T-DNA binary plasmid with an intron-containing Firefly Luciferase gene produced stable transgenic hairy root lines expressing luciferase activity at high frequency. Poison ivy hairy root lines produced significantly lower steady-state urushiol levels relative to wild-type roots, but higher urushiol levels than a poison ivy undifferentiated callus line with undetectable urushiol levels, suggesting that urushiol biosynthesis requires intact poison ivy organs. The lower urushiol levels in poison ivy hairy root lines facilitated the first identification of anacardic acid metabolites initially in hairy roots, and subsequently in wild-type roots as well. This study establishes a transformation hairy root regeneration protocol for poison ivy that can serve as a platform for future reverse-genetic studies of urushiol biosynthesis in poison ivy hairy roots.
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Affiliation(s)
- Aneirin A. Lott
- Plant Molecular and Cellular BiologyUniversity of FloridaGainesvilleFLUSA
- School of Plant and Environmental ScienceVirginia TechBlacksburgVAUSA
| | | | | | | | - Eva Collakova
- School of Plant and Environmental ScienceVirginia TechBlacksburgVAUSA
| | - John G. Jelesko
- School of Plant and Environmental ScienceVirginia TechBlacksburgVAUSA
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23
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Jeong HY, Lee TH, Lee HJ, Cho JY, Moon JH. Ionization Neutralizes the Allergy-Inducing Property of 3-Pentadecylcatechol: A Urushiol Derivative. J Med Food 2020; 23:793-801. [PMID: 32380887 DOI: 10.1089/jmf.2019.4510] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Urushiols are amphipathic compounds found in Rhus verniciflua Stokes that exhibit various biological activities. However, their practical use is very restricted due to their contact dermatitis-inducing property. Therefore, we applied the ionization method to remove the allergenic properties of the urushiols and to increase their usability. One of the natural urushiols, 3-pentadecylcatechol (PDC), was heated for 30 min with a solution of H2O and sodium carbonate (Na2CO3). The reaction product was analyzed by electrospray ionization mass spectrometry (ESI-MS). Ionized PDC with an m/z value of 316.9 and complexed PDCs with Na+ of 1 - 3 atoms with m/z values of 340.8, 365.2, and 380.8 were detected. PDC and ionized PDC (3 μmol/3 mg of Vaseline) treatments were applied on the rear of left ear of Sprague-Dawley rats once daily for 10 days. Erythema and swelling were observed on the ear skin treated with PDC, but not in case of ionized PDC. Compared with control, contact hypersensitivity-related biomarkers (neutrophils, eosinophils, immunoglobulin E, and histamine) in the blood were significantly higher only in the PDC-treated group. In addition, Il-1b, Il-6, Tnfα, and Cox-2 mRNA expression levels were dramatically increased in the ear tissue of PDC-treated rats, but in the ionized PDC-treated group, they were similar to those in the control group. Overall, it was confirmed that the allergenic property of the urushiol PDC was removed by ionization. This method is expected to be useful for preventing allergy induction in cooking and food processing using R. verniciflua Stokes.
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Affiliation(s)
- Hang Yeon Jeong
- Department of Food Science and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Tae Ho Lee
- Department of Food Science and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Hyoung Jae Lee
- Department of Food Science and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Jeong-Yong Cho
- Department of Food Science and Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Jae-Hak Moon
- Department of Food Science and Technology, Chonnam National University, Gwangju, Republic of Korea
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Lott AA, Baklajian ER, Dickinson CC, Collakova E, Jelesko JG. Accession-Level Differentiation of Urushiol Levels, and Identification of Cardanols in Nascent Emerged Poison Ivy Seedlings. Molecules 2019; 24:E4213. [PMID: 31757036 DOI: 10.3390/molecules24234213] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2019] [Revised: 11/16/2019] [Accepted: 11/18/2019] [Indexed: 11/17/2022] Open
Abstract
Poison ivy (Toxicodendron radicans (L.) Kuntze) shows accession-level differentiation in a variety of morphometric traits, suggesting local adaptation. To investigate whether the presumed defense compound urushiol also demonstrates accession-level accumulation differences, in vitro nascent germinated poison ivy seedlings from geographically isolated populations were germinated in vitro and then assayed for known urushiol congener accumulation levels. Significant accession-level differences in the accumulation levels of total C15- and C17-, total C15-, total C17-, specific C15 congeners, and specific C17 congeners of urushiol were identified. In addition, hereto novel C15- and C17-urushiol isomers were identified as well. Cardanols are assumed to be the penultimate metabolites giving rise to urushiols, but this assumption was not previously empirically validated. C15-cardanol congeners and isomers corresponding to expected substrates needed to produce the observed C15-urushiol congeners and isomers were identified in the same poison ivy seedling extracts. Total C15-cardanol and C15-cardanol congeners also showed significant accession-level differences. Based on the observed C15-cardanol congeners in poison ivy, the penultimate step in urushiol biosynthesis was proposed to be a cardanol-specific hydroxylase activity.
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Qi Z, Wang C, Jiang J, Wu C. Novel C15 Triene Triazole, D-A Derivatives Anti-HepG2, and as HDAC2 Inhibitors: A Synergy Study. Int J Mol Sci 2018; 19:ijms19103184. [PMID: 30332739 PMCID: PMC6214004 DOI: 10.3390/ijms19103184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 09/18/2018] [Accepted: 10/08/2018] [Indexed: 01/08/2023] Open
Abstract
A series of novel C15 urushiol derivatives were designed by introducing a pechmann structure and F-, Cl-, and Br-nitro substituents with different electronic properties into its alkyl side chain, as well as a triazolyl functional group in its aromatic oxide. Their chemical structures were determined based on the analysis of the NMR (nuclear magnetic resonance) spectroscopic and mass spectrometric data. The results showed that compound 4 exhibited a strong inhibition of the HepG2 cell proliferation (half maximal inhibitory concentration (IC50): 2.833 μM to human hepatocellular carcinoma (HepG2), and 80.905 μM to human normal hepatocytes (LO2)). Furthermore, it had an excellent synergistic effect with levopimaric acid. The nitrogen atom of the triazole ring formed a hydrogen-bonding interaction with Gly103, Gly154, and Tyr308, which made compound 4 bind to histone deacetylase (HDAC)2 more tightly. One triazole ring and His33 formed a π–π stacking effect; the other, whose branches were deep into the pocket, further enhanced the interaction with HDAC2. Meanwhile, compound 4 involved a hydrophobic interaction with the residues Phe210 and Leu276. The hydrophobic interaction and π–π stacking provided powerful van der Waals forces for the compounds.
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Affiliation(s)
- Zhiwen Qi
- Institute of Chemical Industry of Forest Products, China Academy of Forestry, Nanjing 210042, China.
- Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, China.
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Chengzhang Wang
- Institute of Chemical Industry of Forest Products, China Academy of Forestry, Nanjing 210042, China.
- Key and Open Laboratory on Forest Chemical Engineering, State Forestry Administration, Nanjing 210042, China.
| | - Jianxin Jiang
- College of Material Science and Technology, Beijing Forestry University, Beijing 100083, China.
| | - Caie Wu
- College of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210000, China.
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Qi Z, Wang C, Jiang J. Synthesis and Evaluation of C15 Triene Urushiol Derivatives as Potential Anticancer Agents and HDAC2 Inhibitor. Molecules 2018; 23:E1074. [PMID: 29751548 DOI: 10.3390/molecules23051074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/25/2018] [Accepted: 04/27/2018] [Indexed: 01/27/2023] Open
Abstract
A series of C15 triene urushiol derivatives were synthesized and evaluated for their anti-HepG2 aggregation in vitro. The results indicated that all compounds had an effective anti-HepG2 vitality. Compound 1 was a potent inhibitor of HepG2 with IC50 of 7.886 μM and 150 μM against LO2. Moreover, compound 1 increased the apoptosis of HepG2. Compound 1’s thiol sulfur formed hydrogen bonding interactions with Gly154 and Tyr308, respectively, and made it bound more closely to HDAC2. In addition, it also formed hydrophobic interactions with the residues His33, Pro106, Val107, Gly154, Phe155, and His183, and was provided with a strong van der Waals force by the hydrophobic action.
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Weisberg AJ, Kim G, Westwood JH, Jelesko JG. Sequencing and De Novo Assembly of the Toxicodendron radicans (Poison Ivy) Transcriptome. Genes (Basel) 2017; 8:E317. [PMID: 29125533 PMCID: PMC5704230 DOI: 10.3390/genes8110317] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 07/31/2017] [Revised: 10/12/2017] [Accepted: 10/12/2017] [Indexed: 01/06/2023] Open
Abstract
Contact with poison ivy plants is widely dreaded because they produce a natural product called urushiol that is responsible for allergenic contact delayed-dermatitis symptoms lasting for weeks. For this reason, the catchphrase most associated with poison ivy is "leaves of three, let it be", which serves the purpose of both identification and an appeal for avoidance. Ironically, despite this notoriety, there is a dearth of specific knowledge about nearly all other aspects of poison ivy physiology and ecology. As a means of gaining a more molecular-oriented understanding of poison ivy physiology and ecology, Next Generation DNA sequencing technology was used to develop poison ivy root and leaf RNA-seq transcriptome resources. De novo assembled transcriptomes were analyzed to generate a core set of high quality expressed transcripts present in poison ivy tissue. The predicted protein sequences were evaluated for similarity to SwissProt homologs and InterProScan domains, as well as assigned both GO terms and KEGG annotations. Over 23,000 simple sequence repeats were identified in the transcriptome, and corresponding oligo nucleotide primer pairs were designed. A pan-transcriptome analysis of existing Anacardiaceae transcriptomes revealed conserved and unique transcripts among these species.
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Affiliation(s)
- Alexandra J Weisberg
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97330, USA.
- Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA.
| | - Gunjune Kim
- Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA.
| | - James H Westwood
- Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA.
| | - John G Jelesko
- Department of Plant Pathology, Physiology, and Weed Science, Virginia Tech, Blacksburg, VA 24061, USA.
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Go DH, Lee YG, Lee DH, Kim JA, Jo IH, Han YS, Jo YH, Kim KY, Seo YK, Moon JH, Jung CH, Jeon TI. 3-Decylcatechol induces autophagy-mediated cell death through the IRE1α/JNK/p62 in hepatocellular carcinoma cells. Oncotarget 2017; 8:58790-58800. [PMID: 28938597 PMCID: PMC5601693 DOI: 10.18632/oncotarget.17732] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [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: 01/25/2017] [Accepted: 04/17/2017] [Indexed: 12/19/2022] Open
Abstract
The natural, phenolic lipid urushiol exhibits both antioxidant and anticancer activities; however, its biological activity on hepatocellular carcinoma (HCC) has not been previously investigated. Here, we demonstrate that an urushiol derivative, 3-decylcatechol (DC), induces human HCC Huh7 cell death by induction of autophagy. DC initiates the autophagic process by activation of the mammalian target of rapamycin signaling pathway via Unc-51-like autophagy activating kinase 1, leading to autophagosome formation. The autophagy inhibitor, chloroquine, suppressed autolysosome formation and cell death induction by DC, indicating an autophagic cell death. Interestingly, DC also activated the endoplasmic reticulum (ER) stress response that promotes autophagy via p62 transcriptional activation involving the inositol-requiring enzyme 1α/c-Jun N-terminal kinase/c-jun pathway. We also show that cytosolic calcium mobilization is necessary for the ER stress response and autophagy induction by DC. These findings reveal a novel mechanism by which this urushiol derivative induces autophagic cell death in HCC.
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Affiliation(s)
- Da-Hye Go
- Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju, Republic of Korea
| | - Yu Geon Lee
- Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju, Republic of Korea
| | - Da-Hye Lee
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
| | - Jin-A Kim
- Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju, Republic of Korea
| | - In-Hwa Jo
- Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju, Republic of Korea
| | - Yeon Soo Han
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Yong Hun Jo
- Division of Plant Biotechnology, Institute of Environmentally-Friendly Agriculture (IEFA), College of Agriculture and Life Sciences, Chonnam National University, Gwangju, Republic of Korea
| | - Kwang-Youn Kim
- School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Young-Kyo Seo
- School of Life Sciences, Ulsan National Institute of Science and Technology, Ulsan, Republic of Korea
| | - Jae-Hak Moon
- Department of Food Science & Technology, Chonnam National University, Gwangju, Republic of Korea
| | - Chang Hwa Jung
- Research Group of Metabolic Mechanism, Korea Food Research Institute, Seongnam, Republic of Korea.,Department of Food Biotechnology, Korea University of Science and Technology, Seongnam, Republic of Korea
| | - Tae-Il Jeon
- Department of Animal Science, College of Agriculture & Life Science, Chonnam National University, Gwangju, Republic of Korea
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Aristimuño Ficoseco ME, Sequin CJ, Aceñolaza PG, Vattuone MA, Catalán CAN, Sampietro DA. Antifungal metabolites from Schinopsis balansae Engl (Anacardiaceae): isolation, identification and evidences of their mode of action on Fusarium graminearum Schwabe. Nat Prod Res 2016; 31:1450-1453. [PMID: 27806649 DOI: 10.1080/14786419.2016.1250084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
An antifungal activity-directed fractionation of leaf constituents from Schinopsis balansae on Fusarium graminearum yielded a fraction mainly made of a mixture of four 3-n-heptadec(en)ylcatechols (PALK). The PALK fraction showed on macroconidia germination a MIC100 value of 500 μg/mL which was twofold higher than that required for prothioconazole (MIC100 = 250 μg/mL). Sublethal concentrations of PALK modify the morphogenesis in germinating macroconidia, and decreased fungal production of H2O2 and deoxynivalenol biosynthesis at early fungal growth. Mixes of PALK and prothioconazole showed a synergic interaction. Our findings suggest that PALK constituents might restrict the adherence of F. graminearum to the surface of its hosts and its virulence on susceptible cereals. They deserve further research as additives of azole fungicides against F. graminearum.
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Affiliation(s)
- María Eugenia Aristimuño Ficoseco
- a Facultad de Bioquímica, Química y Farmacia, Laboratorio de Biología de Agentes Bioactivos y Fitopatógenos (LABIFITO) , Universidad Nacional de Tucumán , San Miguel de Tucumán , Argentina
| | - Christian Javier Sequin
- c Facultad de Ciencias Agropecuarias , Universidad Nacional de Entre Ríos , Oro Verde , Argentina
| | - Pablo Gilberto Aceñolaza
- c Facultad de Ciencias Agropecuarias , Universidad Nacional de Entre Ríos , Oro Verde , Argentina
| | - Marta Amelia Vattuone
- a Facultad de Bioquímica, Química y Farmacia, Laboratorio de Biología de Agentes Bioactivos y Fitopatógenos (LABIFITO) , Universidad Nacional de Tucumán , San Miguel de Tucumán , Argentina
| | - Cesar Atilio N Catalán
- b Facultad de Bioquímica, Química y Farmacia , INQUINOA - CONICET, Universidad Nacional de Tucumán , San Miguel de Tucumán , Argentina
| | - Diego Alejandro Sampietro
- a Facultad de Bioquímica, Química y Farmacia, Laboratorio de Biología de Agentes Bioactivos y Fitopatógenos (LABIFITO) , Universidad Nacional de Tucumán , San Miguel de Tucumán , Argentina
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Jeong H, Heo J, Son B, Choi D, Park TH, Chang M, Hong J. Intrinsic Hydrophobic Cairnlike Multilayer Films for Antibacterial Effect with Enhanced Durability. ACS Appl Mater Interfaces 2015; 7:26117-26123. [PMID: 26561514 DOI: 10.1021/acsami.5b07613] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
One important aspect of nanotechnology includes thin films capable of being applied to a wide variety of surfaces. Indispensable functions of films include controlled surface energy, stability, and biocompatibility in physiological systems. In this study, we explored the ancient Asian coating material "lacquer" to enhance the physiological and mechanical stability of nanofilms. Lacquer is extracted from the lacquer tree and its main component called urushiol, which is a small molecule that can produce an extremely strong coating. Taking full advantage of layer-by-layer assembly techniques, we successfully fabricated urushiol-based thin films composed of small molecule/polymer multilayers by controlling their molecular interaction. Unique cairnlike nanostructures in this film, produced by urushiol particles, have advantages of intrinsic hydrophobicity and durability against mechanical stimuli at physiological environment. We demonstrated the stability tests as well as the antimicrobial effects of this film.
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Affiliation(s)
- Hyejoong Jeong
- School of Chemical Engineering and Material Science, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Jiwoong Heo
- School of Chemical Engineering and Material Science, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Boram Son
- School of Chemical and Biological Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
| | - Daheui Choi
- School of Chemical Engineering and Material Science, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Tai Hyun Park
- School of Chemical and Biological Engineering, Seoul National University , 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Republic of Korea
- Advanced Institutes of Convergence Technology , 145 Gwanggyo-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do 16229, Republic of Korea
| | - Minwook Chang
- Department of Ophthalmology, Dongguk University Ilsan Hospital , 27 Dongguk-ro, Ilsandong-gu, Goyang-si, Gyeonggi-do 10326, Republic of Korea
| | - Jinkee Hong
- School of Chemical Engineering and Material Science, Chung-Ang University , 84 Heukseok-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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Watanabe H, Fujimoto A, Takahara A. Surface functionalization by decal-like transfer of thermally cross-linked urushiol thin films. ACS Appl Mater Interfaces 2014; 6:18517-18524. [PMID: 25314021 DOI: 10.1021/am5052284] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have demonstrated surface functionalization through the decal-like transfer of thermally cross-linked urushiol thin films onto various substrates. Tensile adhesive strength measurements showed that the film adheres strongly to the surface of various substrates including chemically inert materials, such as polyolefins and thermosetting resins, because of the properties of urushiol. Furthermore, the highly cross-linked structure of urushiol made the films mechanically robust. These two properties allowed the fabrication of practicable thin films for indirect surface modification. Actually, the robust thin film served as a scaffold for an Au thin film, which was then bound to various substrates. Surface-texturing of nanodecal was also demonstrated as an application aspects.
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Affiliation(s)
- Hirohmi Watanabe
- Japan Science and Technology Agency (JST), ERATO Takahara Soft Interfaces Project, Kyushu University , 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan
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Bang CS, Hong SH, Suk KT, Kim JB, Han SH, Sung H, Kim EJ, Kim MJ, Kim MY, Baik SK, Kim DJ. Effects of Korean Red Ginseng (Panax ginseng), urushiol (Rhus vernicifera Stokes), and probiotics (Lactobacillus rhamnosus R0011 and Lactobacillus acidophilus R0052) on the gut-liver axis of alcoholic liver disease. J Ginseng Res 2014; 38:167-72. [PMID: 25378990 PMCID: PMC4213850 DOI: 10.1016/j.jgr.2014.04.002] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [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: 04/04/2014] [Revised: 04/14/2014] [Accepted: 04/17/2014] [Indexed: 12/12/2022] Open
Abstract
Background Roles of immune reaction and toll-like receptor-4 (TLR-4) have widely been established in the pathogenesis of alcoholic liver disease (ALD). Methods We evaluated the biologic efficacy of Korean Red Ginseng (KRG), urushiol, and probiotics (Lactobacillus rhamnosus R0011 and Lactobacillus acidophilus R0052) in mouse models of ALD. Sixty C57BL/6 mice were equally divided into six feeding groups for 10 weeks: normal diet, alcohol, control, alcohol + KRG, alcohol + urushiol, and alcohol + probiotics. Alcohol was administered via a Lieber–DeCarli liquid diet containing 10% alcohol. TLR-4 expression, proinflammatory cytokines, and histology, as well as the results of liver function tests were evaluated and compared. Results No between-group differences were observed with regard to liver function. TLR-4 levels were significantly lower in the KRG, urushiol, and probiotics groups than in the alcohol group (0.37 ± 0.06 ng/mL, 0.39 ± 0.12 ng/mL, and 0.33 ± 0.07 ng/mL, respectively, vs. 0.88 ± 0.31 ng/mL; p < 0.05). Interleukin-1β levels in liver tissues were decreased among the probiotics and KRG groups. The tumor necrosis factor-α level of liver tissue was decreased in the KRG group. Conclusion The pathological findings showed that alcohol-induced steatosis was significantly reduced by KRG and urushiol. As these agents improve immunologic capacity, they may be considered in potential anti-ALD treatments.
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Affiliation(s)
- Chang Seok Bang
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
| | - So Hyung Hong
- Department of Molecular Medicine, Hallym University College of Medicine, Chuncheon, Korea
| | - Ki Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
| | - Jin Bong Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
| | - Sang Hak Han
- Department of Pathology, Hallym University College of Medicine, Chuncheon, Korea
| | - Hotaik Sung
- Department of Biology, Stanford University, Stanford, CA, USA
| | - Eun Ji Kim
- Center for Efficacy Assessment and Development of Functional Foods and Drugs, Hallym University, Chuncheon, Korea
| | - Myoung Jo Kim
- College of Agriculture and Life Science, Kangwon National University, Chuncheon, Korea
| | - Moon Young Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Soon Koo Baik
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Dong Joon Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea
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Llanchezhian R, Joseph C R, Rabinarayan A. Urushiol-induced contact dermatitis caused during Shodhana (purificatory measures) of Bhallataka (Semecarpus anacardium Linn.) fruit. Ayu 2013; 33:270-3. [PMID: 23559802 PMCID: PMC3611655 DOI: 10.4103/0974-8520.105250] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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] [Indexed: 12/04/2022] Open
Abstract
Bhallataka (Semecarpus anacardium Linn.; Ancardiaceae) is mentioned under Upavisha group in Ayurvedic classics and it is described as a poisonous medicinal plant in Drugs and Cosmetics Act (India), 1940. Fruit of Bhallataka is used either as a single drug or as an ingredient in many compound formulations of Indian systems of medicine to cure many diseases. Tarry oil present in the pericarp of the fruit causes blisters on contact. The major constituent of the tarry oil is anacardic acid and bhilawanol, a mixture of 3-n-pentadec(en)yl catechols. Bhilawanol A and B are known as Urushiols, and also, anacardic acid is closely related to Urushiol. Urushiol-induced contact dermatitis is the medical name given to allergic rashes produced by the oil Urushiol. This paper deals with five case reports of contact dermatitis caused during different stages of Shodhana (purificatory measures) of Bhallataka fruit due to improper handling of the utensils and disposal of media used in Shodhana procedure and their Ayurvedic management. To combat these clinical conditions, the affected persons were advised external application with pounded Nimba (Azadirachta indica A. Juss.) leaves on the affected parts and internal administration of Sarivadyasava 30 ml thrice daily after food and Triphala Churna 5 g before food twice daily. Reduction of itching and burning sensation was observed after topical application.
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Affiliation(s)
- R Llanchezhian
- Reader, Department of Dravyaguna, Dharma Ayurveda Medical College and Hospital, Sriperumbudur, Tamil Nadu, India
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