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Park WR, Choi HS, Moon JH, Kim IS, Kim DK. 3-Methylcatechol mediates anti-fecundity effect by inhibiting estrogen-related receptor-induced glycolytic gene expression in Myzus persicae. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 200:105802. [PMID: 38582605 DOI: 10.1016/j.pestbp.2024.105802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/28/2023] [Accepted: 01/20/2024] [Indexed: 04/08/2024]
Abstract
Aphids are a major problem in agriculture, horticulture, and forestry by feeding on leaves and stems, causing discoloration, leaf curling, yellowing, and stunted growth. Although urushiol, a phenolic compound containing a catechol structure, is known for its antioxidant and anticancer properties, using small molecules to control aphids via catechol-mediated mechanisms is poorly understood. In this study, we investigated the effects of 3-methylcatechol (3-MC) on Myzus persicae fecundity. Our results showed that treatment with 3-MC significantly reduced the intrinsic transcriptional activity of the aphid estrogen-related receptor (MpERR), which regulates the expression of glycolytic genes. Additionally, 3-MC treatment suppressed the promoter activity of MpERR-induced rate-limiting enzymes in glycolysis, such as phosphofructokinase and pyruvate kinase, by inhibiting MpERR binding. Finally, 3-MC also suppressed MpERR-induced glycolytic gene expression and reduced the number of offspring produced by viviparous female aphids. Overall, our findings suggest that 3-MC has the potential to be used as a new strategy for managing aphid populations by controlling their offspring production.
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Affiliation(s)
- Woo-Ram Park
- Host-Directed Antiviral Research Center, Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Hueng-Sik Choi
- Host-Directed Antiviral Research Center, School of Biological Sciences and Technology, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Jae-Hak Moon
- Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - In-Seon Kim
- Department of Agricultural Chemistry, Institute of Environmentally Friendly Agriculture, College of Agriculture and Life Sciences, Chonnam National University, Gwangju 61186, Republic of Korea.
| | - Don-Kyu Kim
- Host-Directed Antiviral Research Center, Department of Integrative Food, Bioscience and Biotechnology, Chonnam National University, Gwangju 61186, Republic of Korea.
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Hu X, Wang M, Cai F, Liu L, Cheng Z, Zhao J, Zhang Q, Long C. A comprehensive review of medicinal Toxicodendron (Anacardiaceae): Botany, traditional uses, phytochemistry and pharmacology. JOURNAL OF ETHNOPHARMACOLOGY 2024; 318:116829. [PMID: 37429501 DOI: 10.1016/j.jep.2023.116829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 06/03/2023] [Accepted: 06/20/2023] [Indexed: 07/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Comprising of about 30 species, the genus Toxicodendron (Anacardiaceae) are mainly distributed in East Asia and North America. Among them, 13 species have been traditionally used as folk medicines in Asia and other parts of the world to treat blood diseases, abnormal bleeding, skin diseases, gastrointestinal diseases, liver diseases, bone injury, lung diseases, neurological diseases, cardiovascular diseases, tonic, cancer, eye diseases, menstrual irregularities, inflammation, rheumatism, diabetes mellitus, rattlesnake bite, internal parasites, contraceptive, vomiting and diarrhea. AIM OF THE STUDY To date, no comprehensive review on Toxicodendron has been published and the scientific basis of the traditional medicinal benefits of Toxicodendron have been less reported. Therefore, this review aims to provide a reference for further research and development on medicinal purpose of Toxicodendron by summarizing the works (from 1980 to 2023), and focusing on its botany, traditional uses, phytochemistry and pharmacology. MATERIALS AND METHODS The names of the species were from The Plant List Database (http://www.theplantlist.org), World Flora Online (http://www.worldfloraonline.org), Catalogue of Life Database (https://www.catalogueoflife.org/) and Plants for A Future Database (https://pfaf.org/user/Default.aspx). And the search terms "Toxicodendron" and "the names of 31 species and their synonyms" were used to search for information from electronic databases such as Web of Science, Scopus, Google Scholar, Science Direct, PubMed, Baidu Scholar, Springer, and Wiley Online Library. Moreover, PhD and MSc dissertations were also used to support this work. RESULTS These species on Toxicodendron are widely used in folkloric medicine and modern pharmacological activities. So far, approximately 238 compounds, mainly phenolic acids and their derivatives, urushiols, flavonoids and terpenoids, are extracted and isolated from Toxicodendron plants, commonly, T. trichocarpum, T. vernicifluum, T. succedaneum, and T. radicans. Among them, phenolic acids and flavonoids are the main compound classes that show pharmacological activities in Toxicodendron plants both in vitro and in vivo. Furthermore, the extracts and single compounds of these species show a wide range of activities, such as antioxidant, antibacterial, anti-inflammatory, anti-tumor, liver protection, fat reduction, nerve protection, and treatment of blood diseases. CONCLUSIONS Selected species of Toxicodendron have been used as herbal medicines in the Southeast Asian for a long time. Furthermore, some bioactive constituents have been identified from them, so plants in this genus may be potential new drugs. The existing research on Toxicodendron has been reviewed, and the phytochemistry and pharmacology provide theoretical basis for some of the traditional medicinal uses. Therefore, in this review, the traditional medicinal, phytochemical and modern pharmacology of Toxicodendron plants are summarized to help future researchers to find new drug leads or to get a better understanding of structure-activity relationships.
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Affiliation(s)
- Xian Hu
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Ethnology and Sociology, Minzu University of China, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Miaomiao Wang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Fei Cai
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China
| | - Liya Liu
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Zhuo Cheng
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Jiaqi Zhao
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Ethnology and Sociology, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Qing Zhang
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China
| | - Chunlin Long
- Key Laboratory of Ecology and Environment in Minority Areas (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; College of Life and Environmental Sciences, Minzu University of China, Beijing, 100081, China; Key Laboratory of Ethnomedicine (Minzu University of China), Ministry of Education, Beijing, 100081, China; Mass Spectrometry Imaging and Metabolomics (Minzu University of China), National Ethnic Affairs Commission, Beijing, 100081, China; Institute of National Security Studies, Minzu University of China, Beijing, 100081, China.
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3
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Jie X, Shiu BC, Zhang Y, Wu H, Ye Y, Fang R. Chitosan-Urushiol nanofiber membrane with enhanced acid resistance and broad-spectrum antibacterial activity. Carbohydr Polym 2023; 312:120792. [PMID: 37059532 DOI: 10.1016/j.carbpol.2023.120792] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 02/11/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Due to the large specific surface area and rich pore structure, chitosan nanofiber membrane has many advantages over conventional gel-like or film-like products. However, the poor stability in acidic solutions and relatively weak antibacterial activity against Gram-negative bacteria severely restrict its use in many industries. Here, we present a chitosan-urushiol composite nanofiber membrane prepared by electrospinning. Chemical and morphology characterization revealed that the formation of chitosan-urushiol composite involved the Schiff base reaction between catechol and amine groups and the self-polymerization of urushiol. The unique crosslinked structure and multiple antibacterial mechanisms endowed the chitosan-urushiol membrane with outstanding acid resistance and antibacterial performance. After immersion in HCl solution at pH 1, the membrane maintained its intact appearance and satisfactory mechanical strength. In addition to its good antibacterial performance against Gram-positive Staphylococcus aureus (S. aureus), the chitosan-urushiol membrane exhibited synergistic antibacterial activity against Gram-negative Escherichia coli (E. coli) that far exceeded that of neat chitosan membrane and urushiol. Moreover, cytotoxicity and hemolysis assays revealed that the composite membrane had good biocompatibility similar to that of neat chitosan. In short, this work provides a convenient, safe, and environmentally friendly method to simultaneously enhance the acid resistance and broad-spectrum antibacterial activity of chitosan nanofiber membranes.
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Affiliation(s)
- Xiaoyu Jie
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Environment and Safety Engineering, Fuzhou university, Fuzhou 350108, China
| | - Bing-Chiuan Shiu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China
| | - Yuchi Zhang
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China
| | - Huazhong Wu
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China
| | - Yuansong Ye
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China.
| | - Run Fang
- College of Material and Chemical Engineering, Minjiang University, Fuzhou 350108, China; College of Environment and Safety Engineering, Fuzhou university, Fuzhou 350108, China; Fujian Engineering Research Center of New Chinese Lacquer Materials, Fuzhou 350108, China.
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Bamboo Salt and Triple Therapy Synergistically Inhibit Helicobacter pylori-Induced Gastritis In Vivo: A Preliminary Study. Int J Mol Sci 2022; 23:ijms232213997. [PMID: 36430475 PMCID: PMC9696544 DOI: 10.3390/ijms232213997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 11/10/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Helicobacter pylori infections are a major cause of gastrointestinal disorders, including gastric ulcers, gastritis, and gastric cancer. Triple therapy, using two antibiotics and a proton pump inhibitor, is recommended for the treatment of H. pylori infections. However, antibiotic resistance in H. pylori is an emerging issue. Bamboo salt, a traditional Korean salt made by baking solar sea salt in bamboo barrels, can ameliorate the symptoms of various gastrointestinal diseases. Herein, we compared the anti-H. pylori activity of triple therapy (clarithromycin, metronidazole, and omeprazole), solar salt, and bamboo salt in vivo as a preliminary study. Four-week-old C57BL/6 male mice were inoculated for eight weeks with the H. pylori Sydney Strain 1 (SS-1) and orally administered triple therapy drugs and salts for five days. The transcript levels of the H. pylori-expressed gene CagA and inflammatory cytokines Tnfα and Il-1β significantly decreased in the bamboo salt treated mice than those in the H. pylori-infected control group. This effect was further enhanced by using triple therapy and bamboo salt together. Solar salt caused modest inhibition of H. pylori-induced inflammation. We also demonstrated the synergistic effects of bamboo salt and triple therapy against H. pylori. Thus, bamboo salt may be a potential candidate agent against the treatment of H. pylori-associated gastritis.
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5
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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: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [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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Ali IAA, Neelakantan P. Antibiofilm activity of phytochemicals against Enterococcus faecalis: A literature review. Phytother Res 2022; 36:2824-2838. [PMID: 35522168 DOI: 10.1002/ptr.7488] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 02/17/2022] [Accepted: 04/19/2022] [Indexed: 12/11/2022]
Abstract
Enterococcus faecalis is a leading causative pathogen of recalcitrant infections affecting heart valves, urinary tract, surgical wounds and dental root canals. Its robust biofilm formation, production of virulence factors and antibiotic resistance contribute significantly to its pathogenicity in persistent infections. The decreased effectiveness of most of antibiotics in preventing and/or eradicating E. faecalis biofilms mandates the discovery of alternative novel antibiofilm agents. Phytochemicals are potential sources of antibiofilm agents due to their antivirulence activity, diversity of chemical structure and multiple mechanisms of action. In this review, we describe the phenotypic and genetic attributes that contribute to antimicrobial tolerance of E. faecalis biofilms. We illuminate the benefits of implementing the phytochemicals to tackle microbial pathogens. Finally, we report the antibiofilm activity of phytochemicals against E. faecalis, and explain their mechanisms of action. These compounds belong to different chemical classes such as terpenes, phenylpropenes, flavonoids, curcuminoids and alkaloids. They demonstrate the ability to inhibit the formation of and/or eradicate E. faecalis biofilms. However, the exact mechanisms of action of most of these compounds are not fully understood. Therefore, the future studies should elucidate the underlying mechanisms in detail.
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Affiliation(s)
- Islam A A Ali
- Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR
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7
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Jeong JH, Ryu JH. Urushiol V Suppresses Cell Proliferation and Enhances Antitumor Activity of 5-FU in Human Colon Cancer Cells by Downregulating FoxM1. Biomol Ther (Seoul) 2022; 30:257-264. [PMID: 35264465 PMCID: PMC9047495 DOI: 10.4062/biomolther.2022.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 02/07/2022] [Accepted: 02/09/2022] [Indexed: 11/17/2022] Open
Abstract
Colorectal cancer (CRC) is one of the most common malignant tumor. 5-FU is commonly used for the treatment of CRC. However, the development of drug resistance in tumor chemotherapy can seriously reduce therapeutic efficacy of 5-FU. Recent data show that FoxM1 is associated with 5-FU resistance in CRC. FoxM1 plays a critical role in the carcinogenesis and drug resistance of several malignancies. It has been reported that urushiol V isolated from the cortex of Rhus verniciflua Stokes is cytotoxic to several types of cancer cells. However, the underlying molecular mechanisms for its antitumor activity and its potential to attenuate the chemotherapeutic resistance in CRC cells remain unknown. Here, we found that urushiol V could inhibit the cell proliferation and induced S-phase arrest of SW480 colon cancer cells. It inhibited protein expression level of FoxM1 through activation of AMPK. We also investigated the combined effect of urushiol V and 5-FU. The combination treatment reduced FoxM1 expression and consequently reduced cell growth and colony formation in 5-FU resistant colon cancer cells (SW480/5-FUR). Taken together, these result suggest that urushiol V from Rhus verniciflua Stokes can suppress cell proliferation by inhibiting FoxM1 and enhance the antitumor capacity of 5-FU. Therefore, urushiol V may be a potential bioactive compound for CRC therapy.
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Affiliation(s)
- Ji Hye Jeong
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
| | - Jae-Ha Ryu
- Research Institute of Pharmaceutical Sciences and College of Pharmacy, Sookmyung Women's University, Seoul 04310, Republic of Korea
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da Silva Lima A, Soares Rocha AP, Serejo RS, de Almeida Lima GD, de Sousa Lima Neto J, Machado Ferreira MC, Viteri Jumbo LO, Costa-Junior LM, de Oliveira EE, da Rocha CQ. Acaricide activity of extract and an isolated compound of Lithraea brasiliensis on Rhipicephalus microplus and selectivity actions against a non-target organism. Vet Parasitol 2021; 300:109597. [PMID: 34678673 DOI: 10.1016/j.vetpar.2021.109597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 10/12/2021] [Accepted: 10/12/2021] [Indexed: 11/19/2022]
Abstract
Rhipicephalus microplus, known as the cattle tick, is a cause of great economic losses for dairy cattle farming because of its high frequency of occurrence and the difficulty in controlling it. This research characterized the chemical profile and evaluated the in vitro toxicity of crude Lithraea brasiliensis extract and its isolated compound against acaricide-resistant and acaricide-susceptible R. microplus strains. Acaricidal activity was evaluated using a larval immersion test and the selectivity against non-target organisms was assessed on Artemia salina assay. The chemical investigation by high-performance liquid chromatography coupled with mass spectrometry (i.e., HPLC-MS) analysis showed the presence of hydrolysable tannins as well as urushiol derivatives. Column chromatography (CC) was carried out on the extract to obtain fractions and an isolated compound. The extract exhibited significant activity against acaricide-resistant (LC50 0.64 mg/mL) and acaricide-susceptible (LC50 0.76 mg/mL) strains of R. microplus larvae. The isolated compound from the extract (urushiol II), exhibited LC50 of 1.11 mg/mL for acaricide-resistant larvae. For acute toxicity in A. salina, the extract showed LC50>100 μg/mL. Thus, our findings represent the first effort to demonstrate the potential of L. brasiliensis extract and urushiol II as potential natural acaricides to replace or to be integrated into the conventional control of R. microplus larvae.
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Affiliation(s)
- Aldilene da Silva Lima
- Department of Chemistry, Federal University of Maranhão, Maranhão, Av. dos Portugueses, 1966, Bacanga, MA, Brazil
| | - Ana Paula Soares Rocha
- Department of Entomology, Federal University of Viçosa, Viçosa, Av. Peter Henry, Rolfs, s/n, Campus Universitário, MG, Brazil
| | - Rafaela Silva Serejo
- Department of Chemistry, Federal University of Maranhão, Maranhão, Av. dos Portugueses, 1966, Bacanga, MA, Brazil
| | | | - José de Sousa Lima Neto
- Department of Pharmacy, Federal University of Piaui, Campus Petrônio Portela, Ininga, Teresina, PI, Brazil
| | | | - Luis O Viteri Jumbo
- Department of Biotecnology, Federal University of Tocantins, Rua Baldejos, s/n, Jardim Sevilha, Gurupi, TO, Brazil
| | - Lívio Martins Costa-Junior
- Department of Pathology, Federal University of Maranhão, Maranhão, Av. dos Portugueses, 1966, Bacanga, MA, Brazil
| | - Eugênio Eduardo de Oliveira
- Department of Pathology, Federal University of Maranhão, Maranhão, Av. dos Portugueses, 1966, Bacanga, MA, Brazil
| | - Cláudia Quintino da Rocha
- Department of Chemistry, Federal University of Maranhão, Maranhão, Av. dos Portugueses, 1966, Bacanga, MA, Brazil.
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Yu HH, Lim JA, Lee KB, Lee Y. Improved Measurements of the Physical Properties of Oriental Lacquers Using Atomic Force Microscopy and a Nanoindenter. Polymers (Basel) 2021; 13:polym13091395. [PMID: 33925850 PMCID: PMC8123403 DOI: 10.3390/polym13091395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 04/23/2021] [Accepted: 04/23/2021] [Indexed: 01/27/2023] Open
Abstract
Researchers have widely investigated Oriental lacquers to identify the chemical composition and have elucidated corresponding polymerization mechanisms using rigorous analytical techniques. However, researchers generally test the physical properties of Oriental lacquers by conventional methods that are perhaps overly simplistic. Here, we propose accurate and quantitative methods for evaluating the physical properties of Korean, Vietnamese, and Myanmarese lacquer films using atomic force microscopy (AFM), a nanoindenter, and a 90° peel tester. We obtained surface images of the lacquers in accordance with drying time using scanning electron microscopy and AFM. The Korean lacquer film exhibited fast hardening speed, enhanced hardness, and strong adhesion strength compared with the other lacquers, although the Myanmarese lacquer film had a smoother surface than the Korean lacquer film. We used our characterization approach for evaluating a mixed Korean/Myanmarese (50/50 w/w) lacquer. Our proposed measurement techniques for Oriental lacquer films provided results that agreed with qualitative results from conventional tests. Force–distance curves in AFM and force–displacement with nanoindenter for Oriental lacquer films showed more accurate and quantitative data on the mechanical properties. Thus, researchers will find our approach useful when they optimize the chemical compositions and improve the physical properties of Oriental lacquer films for industrial applications.
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Affiliation(s)
- Hye Hyun Yu
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Korea;
| | - Jung-Ah Lim
- Center for Opto-Electronic Materials and Devices, Korea Institute of Science and Technology, Seoul 02792, Korea;
| | - Kang-Bong Lee
- National Agenda Research Division, Korea Institute of Science and Technology, Seoul 02792, Korea;
| | - Yeonhee Lee
- Advanced Analysis Center, Korea Institute of Science and Technology, Seoul 02792, Korea;
- Correspondence: ; Tel.: +82-2958-5971; Fax: +82-2958-5969
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10
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Li MC, Zhang YQ, Meng CW, Gao JG, Xie CJ, Liu JY, Xu YN. Traditional uses, phytochemistry, and pharmacology of Toxicodendron vernicifluum (Stokes) F.A. Barkley - A review. JOURNAL OF ETHNOPHARMACOLOGY 2021; 267:113476. [PMID: 33075438 DOI: 10.1016/j.jep.2020.113476] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 09/29/2020] [Accepted: 10/13/2020] [Indexed: 06/11/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Toxicodendron vernicifluum (Stokes) F.A. Barkley (syn. Rhus verniciflua or vernicifera Stokes, Anacardiaceae) (RVS), the lacquer tree, also known as sumac, has been used in China, Japan and South Korea for thousands of years as a highly durable coating material and a traditional herbal medicine, which contains medicinal ingredients with anti-tumor, anti-inflammatory, antiviral, and anti-rheumatic activities. AIM OF THIS REVIEW This review intends to provide a comprehensive and critical appraisal of RVS, including its phytochemical data, botanical and pharmacological literature that support its therapeutic potential in treatment on human diseases, with emphasis on the isolation of natural occurring compounds and detailed pharmacological investigations. MATERIALS AND METHODS Specific information of RVS was collected by using the key words "Toxicodendron vernicifluum", "Rhus verniciflua Stokes", "Rhus vernicifera Stokes" and "Lacquer tree" through published scientific materials (including PubMed, ScienceDirect, Wiley, ACS, CNKI, Scifinder, Springer, Web of Science, Google Scholar, and Baidu Scholar) and other literature sources. RESULTS The major phytoconstituents, 175 of which are presented in this review, including flavonoids, urushiols, terpenes, phenolic acids and other types of compounds, of which flavonoids and urushiols are main components. The extracts and isolates purified from RVS showed a wide range of in vitro and in vivo pharmacological effects, such as anti-cancer, anti-oxidation, anti-inflammatory, antimicrobial, tyrosinase inhibition and so on. CONCLUSION The modern pharmacological research of RVS mainly focus on the pharmacological effects of crude extract or active constituents, of which the flavonoids are widely studied. However, there are few reports on the relationship between pharmacological effects and their structures. And at present, there is still a lack of researches that are of both effective and in-depth. Meanwhile, there is little research on quality control. Apart from the wood and lacquer, other botanical parts also need to be explored further. In addition to phenolic compounds, the study on other types of components in T. vernicifluum would start more sparks for the discovery of new bioactive principles.
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Affiliation(s)
- Mei-Chen Li
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Yun-Qiang Zhang
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Cai-Wen Meng
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jin-Gou Gao
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Chao-Jie Xie
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Traditional Chinese Medicine, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Jian-Yu Liu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, China.
| | - Yong Nan Xu
- Key Laboratory of Structure-Based Drug Design and Discovery, Ministry of Education, Shenyang Pharmaceutical University, Shenyang, 110016, China; School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Shenyang, 110016, China.
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Lee SB, Lee JS, Wang JH, Kim MY, Choi YH, Lee HD, Son CG. Genotoxicity of Water Extract from Bark-Removed Rhus verniciflua Stokes. Molecules 2021; 26:molecules26040896. [PMID: 33567750 PMCID: PMC7914431 DOI: 10.3390/molecules26040896] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 02/03/2021] [Accepted: 02/04/2021] [Indexed: 11/16/2022] Open
Abstract
Rhus verniciflua Stokes (RVS) has been traditionally used as an herbal remedy to support the digestive functions in traditional Korean medicine. Additionally, the pharmacological effects of RVS, including antioxidative, antimicrobial and anticancer activities, have been well-reported. The genotoxicity of RVS, however, is elusive; thus, we evaluated the genotoxicity of RVS without bark (RVX) for safe application as a resource of functional food or a medical drug. To evaluate the genotoxicity of RVX, we used a bacterial reverse mutation test, chromosomal aberration test and comet assay, according to the “Organization for Economic Co-operation and Development” (OECD) guidelines. Briefly, for the reverse mutation test, samples (5000, 1667, 556, 185, 62 and 0 μg/plate of RVX or the positive control) were treated with a precultured strain (TA98, TA100, TA1535, TA1537 or WP2µvrA) with or without the S9 mix, in which RVX partially induced a reverse mutation in four bacterial strains. From the chromosomal aberration test and comet assay, the RVX samples (556, 185, 62, 20 and 0 μg/mL of RVX or the positive control) were treated in a Chinese hamster ovary cell line (CHO-K1 cells) in the conditions of the S9 mix absent or S9 mix present and in Chang liver cells and C2C12 myoblasts, respectively. No chromosomal aberrations in CHO-K1 or DNA damage in Chang liver cells and C2C12 myoblasts was observed. In conclusion, our results suggest the non-genotoxicity of RVX, which would be helpful as a reference for the safe application of bark-removed Rhus verniciflua Stokes as functional raw materials in the food, cosmetics or pharmaceutical fields.
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Affiliation(s)
- Sung-Bae Lee
- Institute of Bioscience & Integrative Medicine, Daejeon University, 176 split 75 Daedeokdae-ro Seo-gu, Daejeon 35235, Korea; (S.-B.L.); (J.-S.L.); (J.-H.W.)
| | - Jin-Seok Lee
- Institute of Bioscience & Integrative Medicine, Daejeon University, 176 split 75 Daedeokdae-ro Seo-gu, Daejeon 35235, Korea; (S.-B.L.); (J.-S.L.); (J.-H.W.)
| | - Jing-Hua Wang
- Institute of Bioscience & Integrative Medicine, Daejeon University, 176 split 75 Daedeokdae-ro Seo-gu, Daejeon 35235, Korea; (S.-B.L.); (J.-S.L.); (J.-H.W.)
| | - Min-Young Kim
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea; (M.-Y.K.); (Y.-H.C.)
| | - Yung-Hyun Choi
- Department of Biochemistry, Dong-eui University College of Korean Medicine, Busan 47227, Korea; (M.-Y.K.); (Y.-H.C.)
| | - Hwa-Dong Lee
- National Institute for Korean Medicine Development, Gyeongsan-si 38540, Korea;
| | - Chang-Gue Son
- Institute of Bioscience & Integrative Medicine, Daejeon University, 176 split 75 Daedeokdae-ro Seo-gu, Daejeon 35235, Korea; (S.-B.L.); (J.-S.L.); (J.-H.W.)
- Correspondence: ; Tel.: +82-42-257-6397
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Kim S, Shin SP, Kim SK, Ham YL, Choi HS, Kim MJ, Han SH, Suk KT. Fermented- Rhus verniciflua extract ameliorate Helicobacter pylori eradication rate and gastritis. Food Sci Nutr 2021; 9:900-908. [PMID: 33598173 PMCID: PMC7866570 DOI: 10.1002/fsn3.2055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 11/23/2020] [Accepted: 11/25/2020] [Indexed: 11/07/2022] Open
Abstract
An antibacterial effect of fermented-Rhus verniciflua extract (FRVE), an urushiol-free extract fermented by Fomitella fraxinea, on Helicobacter pylori was evaluated in mice. Minimal inhibitory concentration of FRVE against H. pylori eradication was checked with serial dilution method in vitro. H. pylori infection-induced mice were utilized to determine the effect of oral administration of FRVE with/without standard triple therapy (STT: metronidazole, omeprazole, and clarithromycin) on H. pylori colonization and gastric inflammation. H. pylori was clearly eradicated by FRVE at a concentration of ≥2 mg/ml in vitro. In animal study, FRVE at a concentration of ≥6 mg/ml significantly reduced colonized H. pylori grading (0.2 vs. 2.2, p < .01) and improved gastric inflammation (0.4 vs. 1.6, p < .01) compared to control. STT with FRVE (3 mg/ml) exerted synergistic effect on both H. pylori colonization grade (STT, 0.6 ± 0.9; FRVE, 1.4 ± 0.5; STT + FRVE, 0.8 ± 0.4) and gastric inflammation (STT, 0.4 ± 0.5; FRVE, 1.4 ± 0.5; STT + FRVE,1.0 ± 0.1) compared with single therapy (p < .01). H. pylori eradication rate of FRVE (6 mg/ml) was higher than that of STT (60% vs. 20%). FRVE has potential antibacterial activity against H. pylori infection and can be used as an additional therapy on STT.
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Affiliation(s)
- Seungwoo Kim
- Institute for Liver and Digestive DiseasesHallym University College of MedicineChuncheonSouth Korea
| | - Suk Pyo Shin
- Institute for Liver and Digestive DiseasesHallym University College of MedicineChuncheonSouth Korea
| | - Seul Ki Kim
- Institute for Liver and Digestive DiseasesHallym University College of MedicineChuncheonSouth Korea
| | - Young Lim Ham
- Department of NursingDaewon University CollegeJecheonSouth Korea
| | - Han Seok Choi
- Department of Agricultural and Fisheries PrecessingKorea National College of Agriculture and FisheriesJeonjuSouth Korea
| | - Myong Jo Kim
- Division of Bioresource SciencesCollege of Agriculture and Life SciencesKangwon National UniversityChuncheonSouth Korea
| | - Sang Hak Han
- Department of PathologyHallym University College of MedicineChuncheonSouth Korea
| | - Ki Tae Suk
- Institute for Liver and Digestive DiseasesHallym University College of MedicineChuncheonSouth Korea
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Hebel-Gerber S, García-Cancino A, Urbina A, Simirgiotis MJ, Echeverría J, Bustamante-Salazar L, Sáez-Carrillo K, Alarcón J, Pastene-Navarrete E. Chilean Rhubarb, Gunnera tinctoria (Molina) Mirb. (Gunneraceae): UHPLC-ESI-Orbitrap-MS Profiling of Aqueous Extract and its Anti- Helicobacter pylori Activity. Front Pharmacol 2021; 11:583961. [PMID: 33708110 PMCID: PMC7941271 DOI: 10.3389/fphar.2020.583961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 11/12/2020] [Indexed: 01/10/2023] Open
Abstract
The full UHPLC-MS metabolome fingerprinting and anti-Helicobacter pylori effect of Gunnera tinctoria (Molina) Mirb. (Nalca) total extract (GTE) and fractions prepared from its edible fresh petioles were evaluated. The activity of G. tinctoria against H. pylori strains ATCC 45504 and J99 was assessed in vitro by means of agar diffusion assay, Minimum Inhibition Concentration (MIC), and Minimum Bactericidal Concentration (MBC), while killing curve and transmission electronic microscopy (TEM) were conducted in order to determine the effect of the plant extract on bacterial growth and ultrastructure. Additionally, the inhibitory effect upon urease was evaluated using both the Jack Bean and H. pylori enzymes. To determine which molecules could be responsible for the antibacterial effects, tentative identification was done by ultra-high performance liquid chromatography coupled with high-resolution mass spectrometry (UHPLC-Q-Orbitrap®-HR-MS). Furthermore, the total G. tinctoria extract was fractionated using centrifugal partition chromatography (CPC), giving four active fractions (1-4). It was determined that the crude extract and centrifugal partition chromatography fractions of G. tinctoria have a bactericidal effect being the lowest MIC and MBC = 32 μg/ml. In the killing curves, fraction one acts faster than control amoxicillin. In the urease assay, F3 exhibited the lowest IC50 value of 13.5 μg/ml. Transmission electronic microscopy showed that crude G. tinctoria extract promotes disruption and separation of the cellular wall and outer membrane detachment on H. pylori causing bacterial cell death.
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Affiliation(s)
- Sonja Hebel-Gerber
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
- Laboratorio de Patogenicidad Bacteriana, Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Apolinaria García-Cancino
- Laboratorio de Patogenicidad Bacteriana, Departamento de Microbiología, Facultad de Ciencias Biológicas, Universidad de Concepción, Concepción, Chile
| | - Angélica Urbina
- Departamento de Producción Vegetal, Facultad de Agronomía, Universidad de Concepción, Chillán, Chile
| | - Mario J. Simirgiotis
- Instituto de Farmacia, Facultad de Ciencias, Universidad Austral de Chile, Campus Isla Teja, Valdivia, Chile
| | - Javier Echeverría
- Departamento de Ciencias del Ambiente, Facultad de Química y Biología, Universidad de Santiago de Chile, Santiago, Chile
| | - Luis Bustamante-Salazar
- Departamento de Análisis Instrumental, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
| | - Katia Sáez-Carrillo
- Facultad de Ciencias Físicas y Matemáticas, Universidad de Concepción, Concepción, Chile
| | - Julio Alarcón
- Laboratorio de Síntesis y Biotransformación de Productos Naturales, Departamento de Ciencias Básicas, Universidad de Bío-Bío, Chillán, Chile
| | - Edgar Pastene-Navarrete
- Laboratorio de Farmacognosia, Departamento de Farmacia, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile
- Laboratorio de Síntesis y Biotransformación de Productos Naturales, Departamento de Ciencias Básicas, Universidad de Bío-Bío, Chillán, Chile
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3-Pentylcatechol, a Non-Allergenic Urushiol Derivative, Displays Anti- Helicobacter pylori Activity In Vivo. Pharmaceuticals (Basel) 2020; 13:ph13110384. [PMID: 33202739 PMCID: PMC7697961 DOI: 10.3390/ph13110384] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [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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Does 3-pentadecylcatechol, an urushiol derivative, get absorbed in the body? A rat oral administration experiment. Food Sci Biotechnol 2020; 29:997-1005. [DOI: 10.1007/s10068-020-00739-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Revised: 01/08/2020] [Accepted: 02/07/2020] [Indexed: 10/24/2022] Open
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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] [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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Jeong JH, Back SK, An JH, Lee NS, Kim DK, Na CS, Jeong YG, Han SY. Topical film prepared with Rhus verniciflua extract-loaded pullulan hydrogel for atopic dermatitis treatment. J Biomed Mater Res B Appl Biomater 2019; 107:2325-2334. [PMID: 30697924 DOI: 10.1002/jbm.b.34325] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 11/26/2018] [Accepted: 12/23/2018] [Indexed: 12/22/2022]
Abstract
Atopic dermatitis (AD) is characterized by relapsing pruritus and skin dryness. Due to the pathogenic multiplicity and the adverse effects associated with the current therapeutics, development of transdermal drug delivery system is becoming an area of interest. Here, a novel topical film prepared with Rhus verniciflua extract (RVE)-loaded pullulan hydrogel (RVE@PH) was synthesized and tested its therapeutic efficacy on the AD rats modeled by neonatal capsaicin injection method. The RVE@PH was characterized by a Fourier-transform infrared spectroscopy and an in vitro release assay. Rat pups were randomly divided into two groups: vehicle-treated (VEH; n = 5) and capsaicin-treated (n = 15). The latter were given capsaicin subcutaneously at 24 h after birth for AD induction and further divided into three groups (n = 5 per each): not treated (CAP), pullulan hydrogel-applied (PH), and RVE@PH-applied (RVE-PH). The pullulan hydrogel and RVE@PH were topically applied on shoulder lesions for 14 days (from 42 to 56 days after birth). Their phenotypes were compared based on the dermatitis score, epidermal thickness, mast cell infiltration, and serum myeloperoxidase (MPO) activities. The PH group showed significant attenuation in all the aforementioned values compared to the CAP group, suggesting that pullulan hydrogel itself has therapeutic activity against AD. Notably, the attenuations were more potent in the RVE-PH group than the PH group, indicating that the therapeutic efficacy against AD is augmented by the presence of RVE, a loaded pharmaceutic. Collectively, these results indicate that RVE@PH inhibits AD through exerting the dual roles, that is, the pullulan hydrogel-mediated physical and RVE-mediated pharmaceutical actions. © 2019 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater 107B: 2325-2334, 2019.
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Affiliation(s)
- Ji Heun Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea
| | - Seung Keun Back
- Department of Biomedical Laboratory Science, College of Medical Science, Konyang University, Daejeon, 35365, South Korea
| | - Jong Hun An
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea
| | - Nam-Seob Lee
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea
| | - Do-Kyung Kim
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea
| | - Chun Soo Na
- Lifetree Co., Ltd., Suwon, 63421, South Korea
| | - Young-Gil Jeong
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea
| | - Seung Yun Han
- Department of Anatomy, College of Medicine, Konyang University, Daejeon, 35365, South Korea.,Myunggok Research Institute, College of Medicine, Konyang University, Daejeon, 35365, South Korea
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Chen J, Cheng W, Chen S, Xu W, Lin J, Liu H, Chen Q. Urushiol-functionalized mesoporous silica nanoparticles and their self-assembly into a Janus membrane as a highly efficient hemostatic material. NANOSCALE 2018; 10:22818-22829. [PMID: 30488065 DOI: 10.1039/c8nr05882b] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Quick hemostasis plays a very important role in preventing hemorrhagic shock and death by controlling blood loss from trauma in civil and military accidents. An ideal quick hemostat should have tissue-adhesive functional groups, clotting factor activating components, and a plasma non-permeable hydrophobic layer. Inspired by the adhesive behavior of mussels, a novel efficient hemostat of urushiol-functionalized mesoporous silica nanoparticles (MSN@U) with a core-shell structure was synthesized and their hemostatic performance was evaluated for the first time. MSN@U could form an amphipathic Janus membrane (a hydrophobic layer and a hydrophilic layer in one membrane) by interfacial self-assembly. The morphology and structure of MSN@U were characterized. The results showed that MSN@U possessed a large specific surface area of 448.91 m2 g-1 and a rich porous structure with an average pore diameter of 3.94 nm. The hydrophilic catechol groups and the long hydrophobic alkyl groups of urushiol allowed MSN@U to self-assemble at the blood/air interface. The former made MSN@U tightly adhere onto blood vessel tissue through covalent bonds, while the latter formed a hydrophobic barrier layer which hindered blood from oozing. Meanwhile, MSN@U would accelerate clotting cascade reactions. These three effects made MSN@U a very quick hemostat with a hemostatic time of 22 ± 2 s on a rat liver laceration. Both in vitro and in vivo tests showed that they had a better hemostatic effect and blood compatibility than MSN. Cell viability evaluations indicated that MSN@U had no cytotoxicity. MSN@U will be a safe and promising hemostatic agent for clinical applications.
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Affiliation(s)
- Jiawen Chen
- College of Chemistry and Materials Science, Fujian Normal University, Fuzhou 350007, People's Republic of China.
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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] [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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Synthesis and Evaluation of C15 Triene Urushiol Derivatives as Potential Anticancer Agents and HDAC2 Inhibitor. Molecules 2018; 23:molecules23051074. [PMID: 29751548 PMCID: PMC6102549 DOI: 10.3390/molecules23051074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [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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Qi Z, Wang C, Jiang J. Synergies of urushiol and its pechmann derivative compatible with paclitaxel anti-HepG2 activity. Nat Prod Res 2018. [DOI: 10.1080/14786419.2018.1446013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Zhiwen Qi
- Institute of Chemical Industry of Forest Products, CAF, Nanjing, China
- Key and Open Laboratory on Forest Chemical Engineering, SFA, Nanjing, China
- College of Material Science and Technology, Beijing Forestry University, Beijing, China
| | - Chengzhang Wang
- Institute of Chemical Industry of Forest Products, CAF, Nanjing, China
- Key and Open Laboratory on Forest Chemical Engineering, SFA, Nanjing, China
| | - Jianxin Jiang
- College of Material Science and Technology, Beijing Forestry University, Beijing, China
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Licá ICL, Soares AMDS, de Mesquita LSS, Malik S. Biological properties and pharmacological potential of plant exudates. Food Res Int 2018; 105:1039-1053. [DOI: 10.1016/j.foodres.2017.11.051] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 11/16/2017] [Accepted: 11/19/2017] [Indexed: 01/27/2023]
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Cha HS, Shin DH. Antibacterial capacity of cavity disinfectants against Streptococcus mutans and their effects on shear bond strength of a self-etch adhesive. Dent Mater J 2017; 35:147-52. [PMID: 26830836 DOI: 10.4012/dmj.2015-175] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
We evaluated the antibacterial properties of three disinfectants [2% chlorhexidine (CHX), 6% sodium hypochlorite (NaOCl), and 0.01% urushiol)] against Streptococcus mutans and their effects on bond strength of Scotchbond(TM) Universal. The reduction in bacterial growth was evaluated by the colony counting method. Total 105 specimens were assigned to seven groups, according to surface pretreatment: control group (C) without pretreatment; chlorhexidine gluconate with rinse (CR) or without rinse (CD); NaOCl with rinse (NR) or without rinse (ND); and urushiol with rinse (UR) or without rinse (UD). The shear bond test was performed at a cross-head speed of 0.5 mm/min. None of the disinfected specimens had viable microbes after a 30 min incubation. The control group exhibited the strongest bond; however, no significant difference was detected with the disinfectant-treated groups, except weak bonding with ND group. These findings suggest that all disinfectants tested had strong antibacterial capacity and may better be rinsed away.
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Affiliation(s)
- Han-Sol Cha
- Department of Conservative Dentistry, Graduate School, DanKook University
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Xu YF, Lian DW, Chen YQ, Cai YF, Zheng YF, Fan PL, Ren WK, Fu LJ, Li YC, Xie JH, Cao HY, Tan B, Su ZR, Huang P. In Vitro and In Vivo Antibacterial Activities of Patchouli Alcohol, a Naturally Occurring Tricyclic Sesquiterpene, against Helicobacter pylori Infection. Antimicrob Agents Chemother 2017; 61:e00122-17. [PMID: 28320722 PMCID: PMC5444145 DOI: 10.1128/aac.00122-17] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 03/10/2017] [Indexed: 12/12/2022] Open
Abstract
This study further evaluated the in vitro and in vivo anti-Helicobacter pylori activities and potential underlying mechanism of patchouli alcohol (PA), a tricyclic sesquiterpene. In the in vitro assay, the capacities of PA to inhibit and kill H. pylori were tested on three standard strains at different pH values and on 12 clinical isolates. The effects of PA on H. pylori adhesion (and its alpA, alpB, and babA genes), motility (and its flaA and flaB genes), ultrastructure, and flagellation were investigated. Moreover, the H. pylori resistance to and postantibiotic effect (PAE) of PA were determined. Furthermore, the in vivo effects of PA on H. pylori eradication and gastritis were examined. Results showed that MICs of PA against three standard strains (pH 5.3 to 9) and 12 clinical isolates were 25 to 75 and 12.5 to 50 μg/ml, respectively. The killing kinetics of PA were time and concentration dependent, and its minimal bactericidal concentrations (MBCs) were 25 to 75 μg/ml. In addition, H. pylori adhesion, motility, ultrastructure, and flagellation were significantly suppressed. PA also remarkably inhibited the expression of adhesion genes (alpA and alpB) and motility genes (flaA and flaB). Furthermore, PA treatment caused a longer PAE and less bacterial resistance than clarithromycin and metronidazole. The in vivo study showed that PA can effectively eradicate H. pylori, inhibit gastritis, and suppress the expression of inflammatory mediators (COX-2, interleukin 1β, tumor necrosis factor alpha, and inducible nitric oxide synthase [iNOS]). In conclusion, PA can efficiently kill H. pylori, interfere with its infection process, and attenuate gastritis with less bacterial resistance, making it a potential candidate for new drug development.
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Affiliation(s)
- Y F Xu
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - D W Lian
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Y Q Chen
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Y F Cai
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Y F Zheng
- Department of Mammary Disease, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - P L Fan
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - W K Ren
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - L J Fu
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Y C Li
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - J H Xie
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, The Second Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - H Y Cao
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - B Tan
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
| | - Z R Su
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
- Dongguan Mathematical Engineering Academy of Chinese Medicine, Guangzhou University of Chinese Medicine, Dongguan, People's Republic of China
| | - P Huang
- School of Chinese Materia Medica, Guangzhou University of Chinese Medicine, Guangzhou, People's Republic of China
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Hong H, Jung M, Choe SJ, Kim JB, Choi EH. The Effect of Rhus verniciflua Stokes Extracts on Photo-Aged Mouse Skin. Ann Dermatol 2017; 29:295-301. [PMID: 28566905 PMCID: PMC5438935 DOI: 10.5021/ad.2017.29.3.295] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 01/27/2023] Open
Abstract
Background Rhus verniciflua Stokes (RV) has traditionally been used in Korea as an indigenous food (Rhus chicken soup) and as an herbal medicinal plant. While the anticancer, antimicrobial, and anti-inflammatory properties of RV have been actively studied in the medical field, its antioxidant effects in the skin that resist the reactive oxygen species in keratinocytes and fibroblasts is less understood. Objective We designed to evaluate the effects of R. verniciflua Stokes extract (RVE) on the photo-aged skin by an in vitro experiment using human fibroblasts and an in vivo experiment using a photo-aged murine model. Methods For the in vitro experiments, human fibroblasts irradiated with ultraviolet (UV) B were treated with RVE or vehicle, and the growth levels and the expression level of type 1 procollagen were compared. For the in vivo experiment, photo-aged mice irradiated with UVB and UVA were administered drinking water with or without RVE, and histological changes and the expression level of type 1 procollagen and matrix metalloprotease (MMP)-13 were compared. Results In vitro experiments using fibroblasts irradiated with UVB showed that RVE promoted growth and significantly increased the expression of type 1 procollagen as compared to the control group. In the photo-aged mice, RVE increased collagen content in the dermis and promoted the synthesis of type 1 procollagen without any visible decrease in MMP-13 as compared to control group. Conclusion In addition to the previously reported antioxidant effects of RVE, oral intake of RVE effectively inhibited photo-aging in hairless mice by enhancing collagen synthesis.
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Affiliation(s)
- Hannah Hong
- Depatment of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Minyoung Jung
- Depatment of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Sung Jay Choe
- Depatment of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jung-Bae Kim
- Department of Food and Nutrition, Sangji Youngseo College, Wonju, Korea
| | - Eung Ho Choi
- Depatment of Dermatology, Yonsei University Wonju College of Medicine, Wonju, Korea
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Park JM, Lee JH, Na CS, Lee D, Lee JY, Satoh M, Lee MY. Heartwood extract of Rhus verniciflua Stokes and its active constituent fisetin attenuate vasoconstriction through calcium-dependent mechanism in rat aorta. Biosci Biotechnol Biochem 2016; 80:493-500. [DOI: 10.1080/09168451.2015.1107464] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Abstract
Rhus verniciflua Stokes (RVS) exert cardiovascular protective activity by promoting blood circulation, but its active ingredients and underlying mechanism have yet to be identified. This study investigated the vascular effects of RVS, focusing on vasoconstriction and smooth muscle Ca2+ signaling. RVS heartwood extract attenuated contraction of aortic rings induced by the vasoconstrictors serotonin and phenylephrine, and inhibited the Ca2+ signaling evoked by serotonin in vascular smooth muscle cells. Subsequent activity-guided fractionation identified fisetin as an active constituent exerting a Ca2+ inhibitory effect. Fisetin could inhibit major Ca2+ mobilization pathways including extracellular Ca2+ influx mediated by the L-type voltage-gated Ca2+ channel, Ca2+ release from the intracellular store and store-operated Ca2+ entry. In accordance with Ca2+ inhibitory effect, fisetin attenuated vasoconstriction by serotonin and phenylephrine. These results suggest that the anticontractile effect, which is presumably mediated by inhibition of Ca2+ signaling, may contribute to the improvement of blood circulation by RVS.
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Affiliation(s)
- Jung-Min Park
- College of Pharmacy, Dongguk University, Goyang, Republic of Korea
| | - Jun-Hyeong Lee
- College of Pharmacy, Dongguk University, Goyang, Republic of Korea
| | - Chun-Soo Na
- Lifetree Biotechnology Institute, Lifetree Biotech Co. Ltd., Suwon, Republic of Korea
| | - Dongho Lee
- College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Jin-Yong Lee
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Masahiko Satoh
- Laboratory of Pharmaceutical Health Sciences, School of Pharmacy, Aichi Gakuin University, Nagoya, Japan
| | - Moo-Yeol Lee
- College of Pharmacy, Dongguk University, Goyang, Republic of Korea
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Jeong H, Cho YA, Cho Y, Kang E, Ahn HW, Hong J. Durable Urushiol-Based Nanofilm with Water Repellency for Clear Overlay Appliances in Dentistry. ACS Biomater Sci Eng 2016; 2:344-348. [DOI: 10.1021/acsbiomaterials.5b00440] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Hyejoong Jeong
- School
of Chemical Engineering and Material Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-Gu, Seoul 06974, Republic of Korea
| | | | - Younghyun Cho
- Department
of Materials Science and Engineering, University of Pennsylvania, 3231
Walnut Street, Philadelphia, Pennsylvania 19104, United States
| | - Eunah Kang
- School
of Chemical Engineering and Material Science, Chung-Ang University, 84 Heukseok-ro, Dongjak-Gu, Seoul 06974, 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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Garro MF, Salinas Ibáñez AG, Vega AE, Arismendi Sosa AC, Pelzer L, Saad JR, Maria AO. Gastroprotective effects and antimicrobial activity of Lithraea molleoides and isolated compounds against Helicobacter pylori. JOURNAL OF ETHNOPHARMACOLOGY 2015; 176:469-474. [PMID: 26571088 DOI: 10.1016/j.jep.2015.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 10/20/2015] [Accepted: 11/04/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lithraea molleoides (Vell.) Engl. (Anacardiaceae) is a medicinal plant traditionally used in South America to treat various ailments, including diseases of the digestive system. AIM OF THE STUDY To evaluate the in vivo antiulcer and antimicrobial activities against Helicobacter pylori of L. molleoides and its isolated compounds. MATERIALS AND METHODS Methanolic extract 250 and 500 mg/kg, (LmE 250 and LmE 500, respectively) and infusions, 10 g and 20 g en 100mL (LmI 10 and LmI 20, respectively) of L. molleoides was evaluated for antiulcer activity against 0.6N HCl, 0.2N NaOH, 200mg/kg acetilsalicilic acid and absolute ethanol-induced gastric ulcers in rats. The degree of erosion in the glandular part of the stomach was assessed from a scoring system. Acute toxicity in mice was also evaluated. The antiulcer effect of the isolated compounds (catechol, mannitol, rutin, gallic acid, ferulic acid and caffeic acid, 100mg/kg) was evaluated against absolute ethanol-induced gastric ulcers in rats. The anti-Helicobacter pylori activity of L. molleoides and isolated compounds was performed using broth dilution methods. RESULTS The LmE 250, LmE 500, LmI 10 and LmI 20 produced significant inhibition on the ulcer index in 0.6N HCl, 0.2N NaOH, 200mg/kg acetilsalicilic acid and absolute ethanol- induced gastric ulcers in rats. The isolated compounds, catechol, mannitol, rutin, ferulic acid and caffeic acid were active in absolute ethanol- induced gastric ulcers in rats. L. molleoides and different compounds showed antimicrobial activity in all strains tested. The lowest MIC value (0. 5 μg/mL) was obtained with catechol in six of eleven strains assayed. No signs of toxicity were observed with doses up to 2g/kg in an acute toxicity assay. CONCLUSION These findings indicate that L. molleoides displays potential antiulcerogenic and antimicrobial activities and the identification of active principles could support the use of this plant for the treatment of digestive affections.
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Affiliation(s)
- María Filomena Garro
- Área de Farmacognosia, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Angel Gabriel Salinas Ibáñez
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Alba Edith Vega
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Andrea Celeste Arismendi Sosa
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Lilian Pelzer
- Área de Farmacología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - José Roberto Saad
- Área de INTEQUI-Química Orgánica. Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Alejandra Olivia Maria
- Área de Farmacología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, 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 APPLIED MATERIALS & 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] [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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Lee JH, Kim M, Chang KH, Hong CY, Na CS, Dong MS, Lee D, Lee MY. Antiplatelet effects of Rhus verniciflua stokes heartwood and its active constituents--fisetin, butein, and sulfuretin--in rats. J Med Food 2015; 18:21-30. [PMID: 25372471 DOI: 10.1089/jmf.2013.3116] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Rhus verniciflua stokes (RVS) is known to promote blood circulation by preventing blood stasis, although the active ingredients and the underlying mechanism are unclear. Platelets are the primary cells that regulate circulation and contribute to the development of diverse cardiovascular diseases by aggregation and thrombosis. The study assessed the antiplatelet activity of RVS and sought to identify the active constituents. Pretreatment of washed platelets with RVS heartwood extract blunted the aggregatory response of platelets to collagen. In the subfractions, fisetin, butein, and sulfuretin were identified as effective inhibitors of platelet aggregation by collagen, thrombin, and adenosine-5'-diphosphate. Antiplatelet activities of all three compounds were concentration dependent, and fisetin had longer in vitro duration of action compared with butein or sulfuretin. Extracellular signal-regulated kinase (ERK) mitogen-activated protein kinase activation by collagen was prevented by fisetin, whereas butein and sulfuretin failed to inhibit ERK and p38 activation was not affected by any of the compounds. Rats orally administered 100 mg/(kg·day(-1)) fisetin for 7 days were resistant to arterial thrombosis, although total extract of RVS heartwood exhibited little effect at a dose of 1000 mg/(kg·day(-1)). RVS heartwood may have cardiovascular protective activity by inhibiting platelet aggregation. The active constituents are fisetin, butein, and sulfuretin, and fisetin is orally effective against thrombosis.
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Affiliation(s)
- Jun-Hyeong Lee
- 1 College of Pharmacy, Dongguk University , Goyang, Gyeonggi-do, Korea
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Cho JY, Park KY, Kim SJ, Oh S, Moon JH. Antimicrobial activity of the synthesized non-allergenic urushiol derivatives. Biosci Biotechnol Biochem 2015; 79:1915-8. [PMID: 26125525 DOI: 10.1080/09168451.2015.1061418] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Synthesized urushiol derivatives possessing different carbon atomic length in the alkyl side chain inhibited the growth of food spoilage and pathogenic microorganisms. Particularly, non-allergenic 3-pentylcatechol showed a broad antimicrobial spectrum on an agar plate. Most food spoilage and pathogenic microorganisms were sensitive to urushiol derivatives in the liquid culture. The morphologies of the microorganisms were changed after treatment of 3-pentylcatechol.
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Affiliation(s)
- Jeong-Yong Cho
- a Department of Food Science & Technology, and Functional Food Research Center , Chonnam National University , Gwangju , Republic of Korea
| | - Keun Young Park
- a Department of Food Science & Technology, and Functional Food Research Center , Chonnam National University , Gwangju , Republic of Korea
| | - Seon-Jae Kim
- b Department of Marine Food Science , Chonnam National University , Yeosu , Republic of Korea
| | - Sejong Oh
- c Department of Animal Science , Chonnam National University , Gwangju , Republic of Korea
| | - Jae-Hak Moon
- a Department of Food Science & Technology, and Functional Food Research Center , Chonnam National University , Gwangju , Republic of Korea
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Moon JE, Shin JH, Kwon O, Kim JY. A Standardized Extract of Rhus verniciflua Stokes Protects Wistar Rats Against Lipopolysaccharide-Induced Acute Inflammation. J Med Food 2015; 18:1223-30. [PMID: 26501382 DOI: 10.1089/jmf.2014.3411] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Rhus verniciflua stokes (RVS) (Anacardiaceae) has been traditionally used as a folk remedy for gastritis, several cancers, and various metabolic diseases. The present study evaluated the anti-inflammatory effect of RVS extract standardized to fustin content using lipopolysaccharide (LPS)-stimulated rats. The rats were randomly divided into six groups and intragastrically administered 0, 100, 250, or 500 mg/kg body weight (bw) of RVS or 15 mg/kg bw of fustin for 14 days. LPS was intraperitoneally injected 18 h before sacrifice. The nitric oxide levels of RVS extract in either the serum or liver were significantly decreased compared to the LPS-treated rats (P<.05). The treatment with the RVS extract also blunted the rise of malondialdehyde levels in the liver (P<.05). The administration of RVS extract and fustin significantly prevented the elevation of interleukin 6 cytokine, iNOS, and COX-2 mRNA expression in the liver. Inflammatory cell infiltration was also significantly attenuated by the RVS extract or fustin supplementation. These results suggest that our standardized RVS extract has preventive effects on inflammatory reactions.
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Affiliation(s)
- Ji Eun Moon
- 1 Department of Food Science and Technology, Seoul National University of Science and Technology , Seoul, Korea
| | - Jae-Ho Shin
- 2 Department of Biomedical Laboratory Science, Eulji University , Seongnam-si, Korea
| | - Oran Kwon
- 3 Department of Nutritional Science and Food Management, Ewha Womans University , Seoul, Korea
| | - Ji Yeon Kim
- 1 Department of Food Science and Technology, Seoul National University of Science and Technology , Seoul, Korea
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Jeong SJ, Park JG, Kim S, Kweon HY, Seo S, Na DS, Lee D, Hong CY, Na CS, Dong MS, Oh GT. Extract of Rhus verniciflua stokes protects the diet-induced hyperlipidemia in mice. Arch Pharm Res 2015; 38:2049-58. [DOI: 10.1007/s12272-015-0579-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 02/19/2015] [Indexed: 01/28/2023]
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Hong M, Kim SW, Han SH, Kim DJ, Suk KT, Kim YS, Kim MJ, Kim MY, Baik SK, Ham YL. Probiotics (Lactobacillus rhamnosus R0011 and acidophilus R0052) reduce the expression of toll-like receptor 4 in mice with alcoholic liver disease. PLoS One 2015; 10:e0117451. [PMID: 25692549 PMCID: PMC4333821 DOI: 10.1371/journal.pone.0117451] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2014] [Accepted: 12/25/2014] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVE The role of lipopolysaccharide (LPS) and toll-like receptor 4 (TLR 4) in the pathogenesis of alcoholic liver disease (ALD) has been widely established. We evaluated the biological effects of probiotics (Lactobacillus rhamnosus R0011 and acidophilus R0052), KRG (Korea red ginseng), and urushiol (Rhus verniciflua Stokes) on ALD, including their effects on normal and high-fat diet in mice. METHODS One hundred C57BL/6 mice were classified into normal (N) and high-fat diet (H) groups. Each group was divided into 5 sub-groups: control, alcohol, alcohol+probiotics, alcohol+KRG, and alcohol+urushiol. A liver function test, histology, electron-microscopy, interleukin (IL)-1β, tumor necrosis factor (TNF)-α, IL-6, and IL-10, and TLR 4 were evaluated and compared. RESULTS In the N group, probiotics, KRG, and urushiol significantly reduced levels of TNF-α (12.3±5.1, 13.4±3.9, and 12.1±4.3 vs. 27.9±15.2 pg/mL) and IL-1β (108.4±39.4, 75.0±51.0, and 101.1±26.8 vs. 162.4±37.5 pg/mL), which were increased by alcohol. Alcohol-induced TLR 4 expression was reduced by probiotics and urushiol (0.7±0.2, and 0.8±0.1 vs. 1.0±0.3, p<0.001). In the H group, IL-10 was significantly increased by probiotics and KRG, compared with alcohol (25.3±15.6 and 20.4±6.2 vs. 7.6±5.6 pg/mL) and TLR 4 expression was reduced by probiotics (0.8±0.2 vs. 1.0±0.3, p = 0.007). CONCLUSIONS Alcohol-induced TLR 4 expression was down-regulated by probiotics in the normal and high-fat diet groups. Probiotics, KRG, and urushiol might be effective in the treatment of ALD by regulating the gut-liver axis.
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Affiliation(s)
- Meegun Hong
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
| | - Seung Woo Kim
- Department of Biomedical science, Hallym University College of Medicine, Chuncheon, South Korea
| | - Sang Hak Han
- Department of Pathology, Hallym University College of Medicine, Chuncheon, South Korea
| | - Dong Joon Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
| | - Ki Tae Suk
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
- Department of Medicine, Columbia University, New York, New York, United States of America
- * E-mail:
| | - Yeon Soo Kim
- Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, South Korea
| | - Myong Jo Kim
- College of Agriculture and Life Science, Kangwon National University, Chuncheon, South Korea
| | - Moon Young Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Soon Koo Baik
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, South Korea
| | - Young Lim Ham
- Department of Emergency medical technology, Daewon University College, Jecheon, South Korea
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Preparation and Characterization of Urushiol Methylene Acetal Derivatives with Various Degrees of Unsaturation in Alkyl Side Chain. INT J POLYM SCI 2015. [DOI: 10.1155/2015/843290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
Preparation of urushiol derivatives was carried out in response to the drug industry’s increasing demand for new synthetic anticancer agents. Urushiol methylene acetal derivatives were synthesized in high yields by reaction of urushiol with methylene chloride under the catalytic action of NaOH. Four kinds of urushiol methylene acetal monomers were separated by silica-gel column and preparative HPLC, and their structures were elucidated by extensive spectroscopic methods, including 1D-NMR and 2D-NMR (1H,13C-NMR,1H-1HCOSY, HSQC, and HMBC) as well as TOF-MS. They were identified as 3-[pentadecyl] benzene methylene ether (compound 1), 3-[8′-pentadecatrienyl] benzene methylene ether (compound 2), 3-[8′,11′-pentadecatrienyl] benzene methylene ether (compound 3), and 3-[8′,11′,14′-pentadecatrienyl] benzene methylene ether (compound 4). This research provides a theoretical reference for exploration of these interesting and potentially bioactive compounds.
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Ryckewaert L, Sacconnay L, Carrupt PA, Nurisso A, Simões-Pires C. Non-specific SIRT inhibition as a mechanism for the cytotoxicity of ginkgolic acids and urushiols. Toxicol Lett 2014; 229:374-80. [DOI: 10.1016/j.toxlet.2014.07.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Revised: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 01/23/2023]
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Kim JH, Shin YC, Ko SG. Integrating traditional medicine into modern inflammatory diseases care: multitargeting by Rhus verniciflua Stokes. Mediators Inflamm 2014; 2014:154561. [PMID: 25024508 PMCID: PMC4082934 DOI: 10.1155/2014/154561] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 04/03/2014] [Accepted: 04/03/2014] [Indexed: 01/05/2023] Open
Abstract
Despite the fact that numerous researches were performed on prevention and treatment of inflammation related diseases, the overall incidence has not changed remarkably. This requires new approaches to overcome inflammation mediated diseases, and thus traditional medicine could be an efficacious source for prevention and treatment of these diseases. In this review, we discuss the contribution of traditional medicine, especially Rhus verniciflua Stokes, to modern medicine against diverse inflammation mediated diseases. Traditionally, this remedy has been used in Eastern Asia for the treatment of gastric problems, hepatic disorders, infectious diseases, and blood disorders. Modern science has provided the scientific basis for the use of Rhus verniciflua Stokes against such disorders and diseases. Various chemical constituents have been identified from this plant, including phenolic acid, and flavonoids. Cell-based studies have exhibited the potential of this as antibacterial, antioxidant, neuroprotective, anti-inflammatory, growth inhibitory, and anticancer activities. Enormous animal studies have shown the potential of this against proinflammatory diseases, neurodegenerative diseases, diabetes, liver diseases, and chemical insults. At the molecular level, this medicinal plant has been shown to modulate diverse cell-signaling pathways. In clinical studies, Rhus verniciflua Stokes has shown efficacy against various cancer patients such as colorectal, gastric, hepatic, renal, pancreatic, and pulmonary cancers. Thus, this remedy is now exhibiting activities in the clinic.
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Affiliation(s)
- Ji Hye Kim
- Laboratory of Clinical Biology and Pharmacogenomics, Department of Preventive Medicine, College of Oriental Medicine, Kyunghee University, 1 Hoegi-dong, Seoul 130-701, Republic of Korea
| | - Yong Cheol Shin
- Laboratory of Clinical Biology and Pharmacogenomics, Department of Preventive Medicine, College of Oriental Medicine, Kyunghee University, 1 Hoegi-dong, Seoul 130-701, Republic of Korea
| | - Seong-Gyu Ko
- Laboratory of Clinical Biology and Pharmacogenomics, Department of Preventive Medicine, College of Oriental Medicine, Kyunghee University, 1 Hoegi-dong, Seoul 130-701, Republic of Korea
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Protective Effect of DetoxifiedRhus vernicifluaStokes on Human Keratinocytes and Dermal Fibroblasts against Oxidative Stress and Identification of the Bioactive Phenolics. Biosci Biotechnol Biochem 2014; 77:1682-8. [DOI: 10.1271/bbb.130236] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Bang CS, Baik GH. Attempts to enhance the eradication rate of Helicobacter pylori infection. World J Gastroenterol 2014; 20:5252-5262. [PMID: 24833855 PMCID: PMC4017040 DOI: 10.3748/wjg.v20.i18.5252] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2013] [Revised: 10/17/2013] [Accepted: 01/20/2014] [Indexed: 02/06/2023] Open
Abstract
Increasing rates of antimicrobial resistance to clarithromycin and metronidazole present challenges in maintaining optimal eradication rates. Knowledge of local antibiotic resistance and consumption pattern is important in selecting a reliable regimen. In addition, adverse effect profiles of therapeutic regimens are important and must be addressed to enhance compliance rates. Various methods of enhancing the eradication rates of Helicobacter pylori (H. pylori) have been investigated, including changing combinations or durations of established drugs, adding adjuvant drugs, or development of new molecules or agents. Bismuth-containing quadruple, sequential, concomitant, and levofloxacin-based triple therapies are replacing the long-standing standard of the triple regimen. Despite the encouraging results of these regimens, individualized approaches like treatment after antibiotics resistance test or CYP2C19 genotyping would be the mainstream of future therapy. Because scientific, economic, and technical problems make these advance therapies unfit for widespread use, future development for H. pylori therapy should be directed to overcome individualized antibiotic resistance. Although various novel regimens and additive agents have indicated favorable outcomes, more studies or validations are needed to become a mainstream H. pylori therapy.
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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] [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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Hong SH, Suk KT, Choi SH, Lee JW, Sung HT, Kim CH, Kim EJ, Kim MJ, Han SH, Kim MY, Baik SK, Kim DJ, Lee GJ, Lee SK, Park SH, Ryu OH. Anti-oxidant and natural killer cell activity of Korean red ginseng (Panax ginseng) and urushiol (Rhus vernicifera Stokes) on non-alcoholic fatty liver disease of rat. Food Chem Toxicol 2013; 55:586-91. [PMID: 23369934 DOI: 10.1016/j.fct.2013.01.022] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 01/04/2013] [Accepted: 01/18/2013] [Indexed: 01/27/2023]
Abstract
Anti-oxidative and immunologic effects of the Korea red ginseng (KRG; Panax ginseng) and urushiol (Rhus vernicifera Stokes) on non-alcoholic fatty liver disease (NAFLD) were evaluated. Forty-five rats (five Long-Evans Tokushima Otsuka and 40 Otsuka Long-Evans Tokushima Fatty [OLETF] rats) received chew diets for 10months; after this period. The OLETF rats were divided into the following four groups according to diet for 2months: NAFLD (chew), KRG (chew+KRG [200mg/kg/day]), urushiol (chew+urushiol [0.5mg/kg/day]), and ursodeoxycholic acid (UDCA) (chew+UDCA [15mg/kg/day]) groups. Liver function, lipid profiles and anti-oxidant activity of liver and serum, natural killer (NK) cell activity, and pathology were compared. In KRG and urushiol groups, the level of serum triglyceride ([302.0±70.4 and 275.2±63.8] vs. 527.7±153.3mg/dL) were lower compared with that of NAFLD group (p<0.05). The levels of HDL-cholesterol (liver tissue: [4.8±0.2 and 4.8±0.5] vs. 4.2±0.2mg/g) and NK cell activity ([3485±910 and 3559±910] vs. 2486±619 counts) were significantly higher than those of the NAFLD group (p<0.001). Inflammation with neutrophil infiltration was observed in only two rats in the NAFLD group. These results suggest that 2months of oral KRG or urushiol administration improves lipid profiles and stimulates NK cell activity, while inhibiting steatohepatitis in OLEFT rats.
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Affiliation(s)
- So Hyung Hong
- Department of Molecular Medicine, Hallym University College of Medicine, Chuncheon, South Korea
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Abstract
Helicobacter pylori resistance rates to antibiotics vary in different countries and even in different regions of the same country. Choice of treatment is strongly dependent on antibiotic resistance rates. In some countries, triple therapy with a proton-pump inhibitor, amoxicillin, and clarithromycin is still the best option, but eradication results fall short of what would be desired (90-95%) in countries with clarithromycin resistance >20%, bismuth-containing quadruple therapy, or nonbismuth sequential or concomitant therapies may then be the preferred option. Newer antibiotic regimens are awaited. Vaccination would be the best option, especially for developing countries, but little progress has been made in designing a vaccine.
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Affiliation(s)
- Bojan Tepes
- Department of Gastroenterology, Medical Centre Rogaska, Rogaska Slatina, Slovenia
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