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Sasaki H, Shibata H, Imabayashi K, Takaishi Y, Kashiwada Y. Prenylated flavonoids from the stems and leaves of Desmodium caudatum and evaluation of their inhibitory activity against the film-forming growth of Zygosaccharomyces rouxii F51. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:6345-6353. [PMID: 24956381 DOI: 10.1021/jf5020439] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In order to provide scientific evidence for the relationship between the traditional usage, stems and leaves of Desmodium caudatum being used for protecting miso from spoilage, and its Japanese name (miso-naoshi), phytochemical study on the stems and leaves of this plant was carried out. Seven new prenylated flavonoids (1-3, 15-18), together with 19 known compounds (4-14, 19-26), were isolated, and the structures of new compounds were elucidated by extensive spectroscopic analyses. The minimum inhibitory concentrations (MICs) of 28 flavonoids, including 17 compounds (1, 2, 4, 5, 7-14, 20-22, 24, 25) isolated in this study and 11 flavonoids (27-37) previously isolated from the roots of this plant, against the film-forming yeast of Zygosaccharomyces rouxii F51 were determined. Fifteen compounds (2, 4, 5, 11, 12, 14, 21, 22, 25, 27, 28, 32-35) inhibited the film-forming growth of Z. rouxii F51 (MIC values, 7.8-62.5 μg/mL), among which 2",2"-dimethylpyran-(5",6":7,8)-5,2'-dihydroxy-4'-methoxy-(2R,3R)-dihydroflavonol (11) demonstrated potent inhibitory activity with an MIC value of 7.8 μg/mL.
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Affiliation(s)
- Hisako Sasaki
- Graduate School of Pharmaceutical Sciences and ‡Faculty of Pharmaceutical Sciences, The University of Tokushima , 1-78 Shomachi, Tokushima 770-8505, Japan
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Taira J, Tsuchida E, Katoh MC, Uehara M, Ogi T. Antioxidant capacity of betacyanins as radical scavengers for peroxyl radical and nitric oxide. Food Chem 2014; 166:531-536. [PMID: 25053090 DOI: 10.1016/j.foodchem.2014.05.102] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 05/12/2014] [Accepted: 05/17/2014] [Indexed: 11/30/2022]
Abstract
This study was designed to assess the antioxidant capacity of betacyanins as indole derived plant pigments, such as betanin, phyllocactin and betanidin. The antioxidant capacity of the betacyanins was evaluated as an index of radical scavenging ability using the peroxyl radical generating system in the presence of AAPH and NO generating system using NOR3 as an NO donor. The peroxyl radical scavenging capacity was dose-dependent in the low concentration range (25-100 nM). The mol-Trolox equivalent activity/mol compound (mol-TEA/mol-compound) as an index of the antioxidant capacity indicated the following order at 10.70 ± 0.01, 3.31 ± 0.14 and 2.83 ± 0.01 mol-TEA/mol-compound for betanidin, betanin and phyllocactin, respectively. In addition, betacyanins reduced the nitrite-level in the low concentration range of 2.5-20 μM. The IC₅₀ values (μM) of nitrogen radical scavenging activity were 24.48, 17.51 and 6.81 for betanin, phyllocactin and betanidin. ESR studies provided evidence that the compounds directly scavenged NO. These results indicated that betacyanins have a strong antioxidant capacity, particularly betanidin with a catechol group had higher activity than those of the glycoside of betacyanins. This study demonstrated that the betacyanins will be useful as natural pigments to provide defence against oxidative stress.
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Affiliation(s)
- Junsei Taira
- Department of Bioresource Technology, Okinawa National College of Technology, 905 Henoko, Nago City, Okinawa 905-2192, Japan.
| | - Eito Tsuchida
- Department of Bioresource Technology, Okinawa National College of Technology, 905 Henoko, Nago City, Okinawa 905-2192, Japan
| | - Megumi C Katoh
- Department of Bioresource Technology, Okinawa National College of Technology, 905 Henoko, Nago City, Okinawa 905-2192, Japan
| | - Masatsugu Uehara
- Department of Bioresource Technology, Okinawa National College of Technology, 905 Henoko, Nago City, Okinawa 905-2192, Japan
| | - Takayuki Ogi
- Okinawa Industrial Technology Center, 12-2 Suzaki, Uruma City, Okinawa 904-2234, Japan
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Joo T, Sowndhararajan K, Hong S, Lee J, Park SY, Kim S, Jhoo JW. Inhibition of nitric oxide production in LPS-stimulated RAW 264.7 cells by stem bark of Ulmus pumila L. Saudi J Biol Sci 2014; 21:427-35. [PMID: 25313277 DOI: 10.1016/j.sjbs.2014.04.003] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/23/2014] [Accepted: 04/23/2014] [Indexed: 11/28/2022] Open
Abstract
This study was designed to isolate and identify a potent inhibitory compound against nitric oxide (NO) production from the stem bark of Ulmus pumila L. Ethyl acetate fraction of hot water extract registered a higher level of total phenolics (756.93 mg GAE/g) and also showed strong DPPH (IC50 at 5.6 μg/mL) and ABTS (TEAC value 0.9703) radical scavenging activities than other fractions. Crude extract and its fractions significantly decreased nitrite accumulation in LPS-stimulated RAW 264.7 cells indicating that they potentially inhibited the NO production in a concentration dependent manner. Based on higher inhibitory activity, the ethyl acetate fraction was subjected to Sephadex LH-20 column chromatography and yielded seven fractions and all these fractions registered appreciable levels of inhibitory activity on NO production. The most effective fraction F1 was further purified and subjected to (1)H, (13)C-NMR and mass spectrometry analysis and the compound was identified as icariside E4. The results suggest that the U. pumila extract and the isolated compound icariside E4 effectively inhibited the NO production and may be useful in preventing inflammatory diseases mediated by excessive production of NO.
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Affiliation(s)
- Taewoo Joo
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Kandhasamy Sowndhararajan
- Kangwon National University, Department of Biological Environment, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Sunghyun Hong
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Jaehak Lee
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Sun-Young Park
- CodeBio Co., Ltd, Seobuk-gu Busong 72-14, Cheonan, Chungnam 331-815, Republic of Korea
| | - Songmun Kim
- Kangwon National University, Department of Biological Environment, Chuncheon, Gangwon 200-701, Republic of Korea
| | - Jin-Woo Jhoo
- Kangwon National University, Department of Animal Products and Food Science, Chuncheon, Gangwon 200-701, Republic of Korea
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Wang Y, Yin L, Lv G, Xu Y, Xu L, Qi Y, Zheng L, Peng J. Multiple compounds determination and fingerprint analysis ofAgrimonia pilosaLedeb by high-performance liquid chromatography. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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55
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Structure and bioactivity of a trisnorditerpenoid and a diterpenoid from an Okinawan soft coral, Cespitularia sp. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.01.035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Taira J, Uehara M, Tsuchida E, Ohmine W. Inhibition of the β-catenin/Tcf signaling by caffeoylquinic acids in sweet potato leaf through down regulation of the Tcf-4 transcription. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:167-172. [PMID: 24308429 DOI: 10.1021/jf404411r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sweet potato leaves contain the highest levels of functional polyphenols. In this study the effects of the sweet potato leaf extract and its contents, such as mono (3, 4, and 5)-caffeoylquinic acid (CQA), di-CQA (4,5-diCQA, 3,5-diCQA, and 3,4-diCQA) and caffeic acid (CA), were evaluated on the β-catenin/Tcf-4 signaling in human colorectal cancer HCT116 cells. The extract and the CQA derivatives inhibited the β-catenin/Tcf-4 signaling, and the inhibition of the di-CQA (with two caffeoyl groups) was higher than that of the mono-CQA (one-caffeoyl group) and CA, suggesting that the caffeoyl structure in the presence of a catechol group plays a significant role in interfering with the β-catenin/Tcf-4 signaling. In addition, the CQA derivatives had no effect on the β-catenin protein expression, but all test compounds inhibited the expression of the Tcf-4 transcription, and the inhibition of the di-CQA derivatives was stronger than those of the mono-CQA derivatives as well as the β-catenin/Tcf-4 transcriptional activity. These compounds can modulate the downstream Wnt signaling pathway, suggesting that sweet potato leaves can be a protective food for colorectal cancer.
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Affiliation(s)
- Junsei Taira
- Department of Bioresource Technology, Okinawa National College of Technology , 905 Henoko, Nago City, Okinawa, 905-2192 Japan
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Kwon RH, Ha BJ. Increased Flavonoid Compounds from Fermented Houttuynia cordata using Isolated Six of Bacillus from Traditionally Fermented Houttuynia cordata. Toxicol Res 2013; 28:117-22. [PMID: 24278599 PMCID: PMC3834406 DOI: 10.5487/tr.2012.28.2.117] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 06/25/2012] [Accepted: 06/27/2012] [Indexed: 01/24/2023] Open
Abstract
Flavonoids, which form a major component in Houttuynia cordata Thunb., display a wide range of pharmacological activities. The expression of plant flavonoids is partly regulated by fermentation. Therefore, we studied the effects of fermentation on H. cordata in order to identify the strains present during the fermentation process, and to determine whether fermented H. cordata could be used as a probiotic. Our results showed that all 6 of the bacterial strains isolated from fermented H. cordata (FHC) belonged to the genus Bacillus. As expected, fermenting H cordata also increased the flavonoid content as increases were observed in the levels of rutin, quercitrin, and quercetin. To test the effects of fermentation, we treated LPS-stimulated RAW264.7 cells with non-fermented H. cordata extracts (HCE) or FHC extracts (FHCE). Compared to the HCE-treated cells, the FHCE-treated cells showed increased viability. No cytotoxic effects were detected in the FHCE-treated groups in the 2 cell lines used in the study, namely, RAW264.7 and RBL-2H3. FHCE-treated HepG2 cells showed decreased growth, compared to HCE-treated HepG2 cells. These results indicate that the fermented H. cordata predominantly contained Bacillus strains. Furthermore, FHCE are able to prevent LPS-induced inflammatory effects and inhibit the growth of HepG2 cells.
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Affiliation(s)
- Ryun Hee Kwon
- Department of Pharmaceutical Engineering and College of Medical Life Science, Silla University, Busan 617-736, Korea
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58
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Mineral determination and anti-LDL oxidation activity of sweet potato (Ipomoea batatas L.) leaves. J Food Compost Anal 2013. [DOI: 10.1016/j.jfca.2012.10.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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59
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Lee YM, Kim JB, Bae JH, Lee JS, Kim PS, Jang HH, Kim HR. Estrogen-like activity of aqueous extract from Agrimonia pilosa Ledeb. in MCF-7 cells. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2012; 12:260. [PMID: 23259680 PMCID: PMC3575283 DOI: 10.1186/1472-6882-12-260] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 12/13/2012] [Indexed: 03/23/2024]
Abstract
BACKGROUND Postmenopausal women experience estrogen deficiency-related menopausal symptoms (e.g., hot flashes and mood swings) and a dramatic increase in the incidence of chronic diseases. Although estrogen-replacement therapy (ERT) can reduce mortality from cardiovascular disease and improve osteoporosis and menopausal symptoms, its side effects have limited recent use. This study investigated the estrogen-like activity of aqueous extract from Agrimonia pilosa Ledeb. METHODS The estrogenic activity of A. pilosa was investigated by using several in vitro assays. The binding activity of A. pilosa on estrogen receptors was examined using a fluorescence polarization-based competitive binding assay. The proliferative activity of A. pilosa was also examined using MCF-7 cells. Furthermore, the effect of A. pilosa on the expression of 3 estrogen-dependent genes was assessed. RESULTS Using liquid chromatography-mass spectrometry, the 3 major peaks of A. pilosa aqueous extract were identified as apigenin-hexose, luteolin-glucuronide, and apigenin-glucuronide. The aqueous extract induced the proliferation of estrogen receptor-positive MCF-7 cells (p < 0.05). A. pilosa-stimulated proliferation was blocked on adding the estrogen antagonist ICI 182,780. Moreover, A. pilosa treatment increased the mRNA expression of the estrogen-responsive genes pS2 and PR (p < 0.05). CONCLUSIONS These results suggest A. pilosa can be used to improve estrogen deficiency-related menopausal symptoms or to treat diseases in postmenopausal women.
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Affiliation(s)
- Young Min Lee
- Functional Food & Nutrition Division, Department of Agro-food Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
| | - Jung Bong Kim
- Functional Food & Nutrition Division, Department of Agro-food Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
| | - Ji Hyun Bae
- Functional Food & Nutrition Division, Department of Agro-food Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
| | - Jong Suk Lee
- Gyeonggi Biocenter, Gyeonggi Institute of Science and Technology Promotion, Suwon, Gyeonggi-do, Republic of Korea
| | - Pan-Soo Kim
- Gyeonggi Biocenter, Gyeonggi Institute of Science and Technology Promotion, Suwon, Gyeonggi-do, Republic of Korea
| | - Hwan Hee Jang
- Functional Food & Nutrition Division, Department of Agro-food Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
| | - Haeng Ran Kim
- Functional Food & Nutrition Division, Department of Agro-food Resources, National Academy of Agricultural Science, Rural Development Administration, Suwon, Republic of Korea
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Sasaki H, Kashiwada Y, Shibata H, Takaishi Y. Prenylated flavonoids from Desmodium caudatum and evaluation of their anti-MRSA activity. PHYTOCHEMISTRY 2012; 82:136-142. [PMID: 22800912 DOI: 10.1016/j.phytochem.2012.06.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2011] [Revised: 05/28/2012] [Accepted: 06/12/2012] [Indexed: 06/01/2023]
Abstract
Seven prenylated flavonoids and a prenylated chromanochroman derivative, together with eight known flavonoids, were isolated from roots of Desmodium caudatum. The 15 structures were elucidated by extensive spectroscopic analyses. The antibacterial activity of many of other compounds was evaluated against methicillin-resistant Staphylococcus aureus (MRSA: COL and 5) by a disc diffusion method, and the minimum inhibitory concentrations (MICs) to MRSA were determined.
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Affiliation(s)
- Hisako Sasaki
- Graduate School of Pharmaceutical Sciences, University of Tokushima, Shomachi 1-78, Tokushima, Japan
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Kim JJ, Jiang J, Shim DW, Kwon SC, Kim TJ, Ye SK, Kim MK, Shin YK, Koppula S, Kang TB, Choi DK, Lee KH. Anti-inflammatory and anti-allergic effects of Agrimonia pilosa Ledeb extract on murine cell lines and OVA-induced airway inflammation. JOURNAL OF ETHNOPHARMACOLOGY 2012; 140:213-221. [PMID: 22289347 DOI: 10.1016/j.jep.2011.12.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 12/19/2011] [Accepted: 12/20/2011] [Indexed: 05/31/2023]
Abstract
ETHNOPHARMACOLOGICAL EVIDENCE Agrimonia pilosa Ledeb (Rosaceae, AP) has long been used as a traditional medicine in Korea and other Asian countries to treat various diseases. AIM OF THE STUDY In the present study, the anti-inflammatory and anti-allergic effects of AP extract in in vitro cell lines and in vivo mouse model of inflammation and the molecular mechanisms involved were reported. MATERIALS AND METHODS Using Raw 264.7 murine macrophages the effects of methanol extract of AP in lipopolysaccharide (LPS)-induced production of inflammatory mediators were measured. Further IgE-DNP-induced interleukin (IL)-4 production and degranulation in RBL-2H3 rat basophilic cell lines was also estimated. To investigate the anti-asthmatic effect of AP in vivo, airway inflammation in ovalbumin (OVA)-induced mouse model was used. RESULTS AP attenuated the production of inflammatory mediators such as NO, PGE(2) and pro-inflammatory cytokines in LPS-induced Raw 264.7 cells. Further, AP inhibited IL-4 production and degranulation in IgE-DNP-induced RBL-2H3 cells. Furthermore, AP attenuated the infiltration of immune cells into lung, cytokines production in broncho-alveolar lavage fluid (BALF) and airway-hyperresponsiveness (AHR) on OVA-induced mouse model of inflammation. CONCLUSION Our results showed that AP attenuated the activation of macrophages, basophils, and inhibited the OVA-induced airway inflammation. The molecular mechanisms leading to AP's potent anti-inflammatory and anti-allergic effects might be through regulation of TRIF-dependent and Syk-PLCγ/AKT signaling pathways, suggesting that AP may provide a valuable therapeutic strategy in treating various inflammatory diseases including asthma.
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Affiliation(s)
- Jae-Jin Kim
- Department of Biotechnology, College of Biomedical & Health Science, Konkuk University, Chungju 380-701, Republic of Korea
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Wang H, Liu Y, Wei S, Yan Z, Jin X. Comparative Chemical Composition of the Essential Oils Obtained by Microwave-Assisted Hydrodistillation and Hydrodistillation from Agrimonia pilosaLedeb. Collected in Three Different Regions of China. Chem Biodivers 2012; 9:662-8. [DOI: 10.1002/cbdv.201100239] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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63
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Chiral flavanones from Amygdalus lycioides Spach: structural elucidation and identification of TNFalpha inhibitors by bioactivity-guided fractionation. Molecules 2012; 17:1665-74. [PMID: 22318322 PMCID: PMC6268923 DOI: 10.3390/molecules17021665] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2011] [Revised: 01/31/2012] [Accepted: 02/01/2012] [Indexed: 12/19/2022] Open
Abstract
Phytochemical investigation on the Amygdalus lycioides Spach branchelets resulted in the isolation of four chiral flavanones: (2R,3R)-Taxifolin, (2R,3R)-aromadendrin, (S)-5,7,3',5'-tetrahydroxyflavanone and (S)-naringenin. The flavanones were isolated by semi-preparative HPLC, their structures elucidated based on spectroscopic data and their absolute configuration assigned. As a part of our ethnobotanical-directed search for novel TNFα inhibitors, the bioassay-guided fractionation of the n-hexane-acetone (n-Hex-Ac, 1:1 v/v) Amygdalus lycioides Spach branchelets extract was performed. In this way, (S)-naringenin was identified as the constituent responsible for the TNFα blocking effect, being effective in vitro and in vivo after oral administration. This is the first investigation on bioactive secondary metabolites of Amygdalus lycioides Spach branchelets.
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Suppression of nitric oxide production on LPS/IFN-γ-stimulated RAW264.7 macrophages by a novel catechin, pilosanol N, from Agrimonia pilosa Ledeb. Bioorg Med Chem Lett 2012; 22:1766-9. [DOI: 10.1016/j.bmcl.2011.12.086] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 12/14/2011] [Accepted: 12/16/2011] [Indexed: 11/22/2022]
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65
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Yang MJ, Lin WY, Lu KH, Tu WC. Evaluating antioxidative activities of amino acid substitutions on mastoparan-B. Peptides 2011; 32:2037-43. [PMID: 21924309 DOI: 10.1016/j.peptides.2011.08.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/05/2011] [Revised: 08/31/2011] [Accepted: 08/31/2011] [Indexed: 10/17/2022]
Abstract
Mastoparan-B is a peptide toxin isolated from the venom of Vespa basalis, the most dangerous hornet found in Taiwan. This study is aimed to evaluate the antioxidative activities of several amino acid substitutions on MP-B, and examined the influences of mast cell degranulation and hemolytic activities in parallel with antioxidative activities. The correlations between the biological function and amino acid sequence were assessed. Our study shows original MP-B is a valuable antioxidant at low concentration in competing with nitric-oxide for oxygen molecules and possesses good antioxidative enzyme activities resembled to superoxidase dismutase and glutathione peroxidase. And there are no predominant rates of mast cell degranulation and hemolytic effects in such condition. With proper substitutions, the reducing power, DPPH scavenging activity and glutathione reductase-like enzyme activity of MP-B can increase clearly. The results demonstrate that MP-B analogs are very potential to be applicable antioxidants for other antioxidative usages.
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Affiliation(s)
- Mars J Yang
- Department of Entomology, National Chung Hsing University, Taichung, Taiwan, ROC
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66
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Kassim M, Achoui M, Mustafa MR, Mohd MA, Yusoff KM. Ellagic acid, phenolic acids, and flavonoids in Malaysian honey extracts demonstrate in vitro anti-inflammatory activity. Nutr Res 2011; 30:650-9. [PMID: 20934607 DOI: 10.1016/j.nutres.2010.08.008] [Citation(s) in RCA: 188] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2010] [Revised: 08/16/2010] [Accepted: 08/19/2010] [Indexed: 12/16/2022]
Abstract
Natural honey has been used in traditional medicine of different cultures throughout the world. This study looked into the extraction of Malaysian honey and the evaluation of the anti-inflammatory activity of these extracts. It was hypothesized that honey extracts contain varying amounts of phenolic compounds and that they possess different in vitro anti-inflammatory activities. Honey extracts were analyzed using liquid chromatography-mass spectrometry to identify and compare phenolic compounds, whereas high-performance liquid chromatography was used for their quantification. Subsequently, honey methanol extract (HME) and honey ethyl acetate extract (HEAE) were tested in vitro for their effect on nitric oxide production in stimulated macrophages. The extracts were also tested for their effects on tumor necrosis factor-α (TNF) cytotoxicity in L929 cells. The major phenolics in the extracts were ellagic, gallic, and ferulic acids; myricetin; chlorogenic acid; and caffeic acid. Other compounds found in lower concentrations were hesperetin, p-coumaric acid, chrysin, quercetin, luteolin, and kaempferol. Ellagic acid was the most abundant of the phenolic compounds recorded, with mean concentrations of 3295.83 and 626.74 μg/100 g of honey in HME and HEAE, respectively. The median maximal effective concentrations for in vitro nitric oxide inhibition by HEAE and HME were calculated to be 37.5 and 271.7 μg/mL, respectively. The median maximal effective concentrations for protection from TNF cytotoxicity by HEAE and HME were 168.1 and 235.4 μg/mL, respectively. In conclusion, HEAE exhibited greater activity in vitro, whereas HME contained a higher concentration of phenolic compounds per 100 g of honey.
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Affiliation(s)
- Mustafa Kassim
- Department of Anesthesiology, University of Malaya, 50603 Kuala Lumpur, Malaysia
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67
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Antioxidant activity and cell toxicity of pressurised liquid extracts from 20 selected plant species in Jeju, Korea. Food Chem 2010. [DOI: 10.1016/j.foodchem.2010.03.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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68
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Cuong NX, Nhiem NX, Thao NP, Nam NH, Dat NT, Anh HLT, Huong LM, Kiem PV, Minh CV, Won JH, Chung WY, Kim YH. Inhibitors of osteoclastogenesis from Lawsonia inermis leaves. Bioorg Med Chem Lett 2010; 20:4782-4. [DOI: 10.1016/j.bmcl.2010.06.118] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Revised: 06/12/2010] [Accepted: 06/22/2010] [Indexed: 11/25/2022]
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69
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Jung CH, Kim JH, Park S, Kweon DH, Kim SH, Ko SG. Inhibitory Effect ofAgrimonia pilosaLedeb. on Inflammation by Suppression of iNOS and ROS Production. Immunol Invest 2010; 39:159-70. [DOI: 10.3109/08820130903501790] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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