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Ye M, Zheng W, Yin C, Fan X, Chen H, Gao Z, Zhao Y, Liang Y. The inhibitory efficacy of procyanidin on soil denitrification varies with N fertilizer type applied. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 806:150588. [PMID: 34582856 DOI: 10.1016/j.scitotenv.2021.150588] [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: 07/07/2021] [Revised: 08/23/2021] [Accepted: 09/22/2021] [Indexed: 06/13/2023]
Abstract
Denitrification is a major process of the nitrogen (N) cycle by converting nitrate (NO3-) back to gaseous nitrogen (N2), which leads to massive losses of N, including fertilizer N, from agricultural systems. One mitigation strategy for these N losses involves denitrification inhibition by plant-derived biological denitrification inhibitors (BDIs). Procyanidin was recently identified as a new class of BDI in root extracts from Fallopia spp. However, the efficacy of this compound on soil denitrification under different N fertilizer sources is not well understood. Here, a 14-day microcosm experiment was conducted using three nitrate-based fertilizers (NH4NO3, KNO3, and Ca(NO3)2) to investigate the impact of procyanidin on soil denitrification and associated microbial pathways. Results showed that procyanidin inhibited denitrification activity regardless of the source of N fertilizer applied, but the inhibitory efficacy of procyanidin varied with N fertilizer types. Addition of procyanidin had greater denitrification inhibition in the soils applied with NH4NO3 than with other types of N fertilizer. Moreover, nitrate reductase activity was significantly suppressed by procyanidin addition across all three N fertilizers tested. Quantification of denitrifying functional genes (nirS, nirK, and nosZ) demonstrated that procyanidin inhibited the activity and growth of nirS- and nirK-type denitrifiers, but stimulated the growth of nosZI-containing denitrifiers. These findings indicate that the inhibition of soil denitrification by procyanidin was mainly a result of the suppression of nitrate reductase activity and nirS- and nirK-type denitrifiers abundance. The use of procyanidin together with N fertilizers, especially NH4NO3, can be an effective way to reduce the N losses by denitrification.
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Affiliation(s)
- Mujun Ye
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Wanning Zheng
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Chang Yin
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiaoping Fan
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Hao Chen
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zixiang Gao
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yuhua Zhao
- College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Yongchao Liang
- Ministry of Education Key Laboratory of Environment Remediation and Ecological Health, College of Environmental & Resource Sciences, Zhejiang University, Hangzhou 310058, China.
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Song H, Lee PG, Kim H, Lee UJ, Lee SH, Kim J, Kim BG. Polyphenol-Hydroxylating Tyrosinase Activity under Acidic pH Enables Efficient Synthesis of Plant Catechols and Gallols. Microorganisms 2021; 9:microorganisms9091866. [PMID: 34576760 PMCID: PMC8466947 DOI: 10.3390/microorganisms9091866] [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: 07/02/2021] [Revised: 08/27/2021] [Accepted: 08/27/2021] [Indexed: 11/16/2022] Open
Abstract
Tyrosinase is generally known as a melanin-forming enzyme, facilitating monooxygenation of phenols, oxidation of catechols into quinones, and finally generating biological melanin. As a homologous form of tyrosinase in plants, plant polyphenol oxidases perform the same oxidation reactions specifically toward plant polyphenols. Recent studies reported synthetic strategies for large scale preparation of hydroxylated plant polyphenols, using bacterial tyrosinases rather than plant polyphenol oxidase or other monooxygenases, by leveraging its robust monophenolase activity and broad substrate specificity. Herein, we report a novel synthesis of functional plant polyphenols, especially quercetin and myricetin from kaempferol, using screened bacterial tyrosinases. The critical bottleneck of the biocatalysis was identified as instability of the catechol and gallol under neutral and basic conditions. To overcome such instability of the products, the tyrosinase reaction proceeded under acidic conditions. Under mild acidic conditions supplemented with reducing agents, a bacterial tyrosinase from Bacillus megaterium (BmTy) displayed efficient consecutive two-step monophenolase activities producing quercetin and myricetin from kaempferol. Furthermore, the broad substrate specificity of BmTy toward diverse polyphenols enabled us to achieve the first biosynthesis of tricetin and 3'-hydroxyeriodictyol from apigenin and naringenin, respectively. These results suggest that microbial tyrosinase is a useful biocatalyst to prepare plant polyphenolic catechols and gallols with high productivity, which were hardly achieved by using other monooxygenases such as cytochrome P450s.
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Affiliation(s)
- Hanbit Song
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Pyung-Gang Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
- Institute of Engineering Research, Seoul National University, Seoul 08826, Korea
| | - Hyun Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Uk-Jae Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Sang-Hyuk Lee
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Joonwon Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
| | - Byung-Gee Kim
- School of Chemical and Biological Engineering, Seoul National University, Seoul 08826, Korea; (H.S.); (P.-G.L.); (H.K.); (U.-J.L.); (S.-H.L.); (J.K.)
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul 08826, Korea
- Bio-MAX/N-Bio Institute, Seoul National University, Seoul 08826, Korea
- Institute for Sustainable Development (ISD), Seoul National University, Seoul 08826, Korea
- Correspondence: ; Tel.: +82-2-880-6774; Fax: +82-2-876-8945
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Cheng CY, Balsandorj Z, Hao Z, Pan L. High-precision measurement of pH in the full toothpaste using NMR chemical shift. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2020; 317:106771. [PMID: 32629341 DOI: 10.1016/j.jmr.2020.106771] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/26/2020] [Accepted: 06/08/2020] [Indexed: 06/11/2023]
Abstract
The pH of toothpaste is a critical factor for product stability and customer acceptance. However, no reliable and consistent method is currently available to precisely quantify pH in toothpaste as it is. In this study, a new method to directly determine pH value in the full toothpaste contained sodium bicarbonate (NaHCO3) was developed. Briefly, we utilized the 13C NMR chemical shift of a small molecule that has been formulated in the toothpaste as a sensitive probe to consistently respond to the pH value of the full toothpaste. The ideal pH probe molecule has the following characteristics: (1) its NMR chemical shift is sensitive to pH within a certain range, and (2) the chemical shift only responses to pH value, not to other factors, such as molecular interaction. NaHCO3 is a common ingredient in many toothpaste products used as a mild abrasive and an effective pH adjustment compound. Its chemical shift is very sensitive to pH; therefore, it was used as a candidate molecule to test this concept. This technique was demonstrated on select toothpaste formula contained arginine and sodium bicarbonate with different abrasive bases. The result shows that the pH value of full toothpaste is significantly higher than the pH of the toothpaste slurry. Arginine is a key active ingredient in these toothpastes, and it does not interfere with the chemical shift of sodium bicarbonate. The traditional method to determine the pH of toothpaste using pH electrode in toothpaste slurry typically has a larger measuring error, ranging from 0.1 to 0.3. This new method greatly reduced the measuring error, providing a consistent way to reliably determine pH in the full toothpaste, and enabling the stability test of toothpaste with smaller variations. This newly developed method can be further extended to other low-water gel or paste products at a different pH range by using different probe molecules.
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Affiliation(s)
- Chi-Yuan Cheng
- Colgate-Palmolive Company, 909 River Rd., Piscataway, NJ 08855, USA.
| | | | - Zhigang Hao
- Colgate-Palmolive Company, 909 River Rd., Piscataway, NJ 08855, USA
| | - Long Pan
- Colgate-Palmolive Company, 909 River Rd., Piscataway, NJ 08855, USA
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Lorenz M, Lehmann S, Djordjevic I, Düsterhöft T, Zimmermann BF, Stangl K, Stangl V. Vasodilation of Tea Polyphenols Ex Vivo Is Mediated by Hydrogen Peroxide Under Rapid Compound Decay. Antioxidants (Basel) 2020; 9:antiox9050390. [PMID: 32392754 PMCID: PMC7278881 DOI: 10.3390/antiox9050390] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/29/2020] [Accepted: 05/05/2020] [Indexed: 12/31/2022] Open
Abstract
Improvement of endothelial function represents a major health effect of tea in humans. Ex vivo, tea and tea polyphenols stimulate nitric oxide (NO)-dependent vasodilation in isolated blood vessels. However, it was reported that polyphenols can generate reactive oxygen species (ROS) in vitro. We therefore aimed to elucidate the role of ROS production in tea polyphenol-induced vasodilation in explanted aortic rings. Vasorelaxation of rat aortic rings was assessed in an organ chamber model with low concentrations of epigallocatechin-3-gallate (EGCG), theaflavin-3,3'-digallate (TF3), and with green and black tea, with or without pretreatment with catalase or superoxide dismutase (SOD). The stability of EGCG and TF3 was measured by HPLC, and the levels of hydrogen peroxide (H2O2) were determined. EGCG and green tea-induced vasorelaxation was completely prevented by catalase and slightly increased by SOD. TF3 and black tea yielded similar results. Both EGCG and TF3 were rapidly degraded. This was associated with increasing H2O2 levels over time. Hydrogen peroxide concentrations produced in a time range compatible with tea polyphenol decay induced NO-dependent vasodilation in aortic rings. In conclusion, tea polyphenol-induced vasodilation in vitro is mediated by low levels of H2O2 generated during compound decay. The results could explain the apparent lack of vasodilatory effects of isolated tea polyphenols in humans.
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Affiliation(s)
- Mario Lorenz
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Medizinische Klinik für Kardiologie und Angiologie, Campus Mitte, 10117 Berlin, Germany; (T.D.); (K.S.); (V.S.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10115 Berlin, Germany
- Correspondence: ; Tel.: +49-30-450-513-186
| | - Stephanie Lehmann
- Fachbereich Veterinärmedizin, Institut für Veterinär-Biochemie, Freie Universität Berlin, 14163 Berlin, Germany;
| | - Ilija Djordjevic
- Klinik und Poliklinik für Herzchirurgie, Herzchirurgische Intensivmedizin und Thoraxchirurgie, Universitätsklinikum Köln, 50937 Köln, Germany;
| | - Thomas Düsterhöft
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Medizinische Klinik für Kardiologie und Angiologie, Campus Mitte, 10117 Berlin, Germany; (T.D.); (K.S.); (V.S.)
| | - Benno F. Zimmermann
- Institut für Ernährungs- und Lebensmittelwissenschaften, Universität Bonn, 53115 Bonn, Germany;
| | - Karl Stangl
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Medizinische Klinik für Kardiologie und Angiologie, Campus Mitte, 10117 Berlin, Germany; (T.D.); (K.S.); (V.S.)
| | - Verena Stangl
- Charité – Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Medizinische Klinik für Kardiologie und Angiologie, Campus Mitte, 10117 Berlin, Germany; (T.D.); (K.S.); (V.S.)
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, 10115 Berlin, Germany
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Xingfei L, Shunshun P, Wenji Z, Lingli S, Qiuhua L, Ruohong C, Shili S. Properties of ACE inhibitory peptide prepared from protein in green tea residue and evaluation of its anti-hypertensive activity. Process Biochem 2020. [DOI: 10.1016/j.procbio.2020.01.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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Abstract
Background Catechins, which are polyphenol compounds found in many plants and are an important component of tea leaves, are strong anti-oxidants. Research Many studies seek to enhance the effects of catechins on the human body and boost their protective power against UV radiation. There are many examples of the positive anti-microbial, anti-viral, anti-inflammatory, anti-allergenic, and anti-cancer effects of catechins. Catechins increase the penetration and absorption of healthy functional foods and bio cosmetics into the body and the skin, thus improving their utility. High value-added anti-oxidant substances have been extracted from food and plant sludge, and experiments have shown that catechins are safe when applied to the human body. The stability of catechins is very important for their absorption into the human body and the effectiveness of their anti-oxidant properties. Conclusion Continued research on the strong anti-oxidant effects of catechins is expected to result in many advances in the food, cosmetics, and pharmaceutical industries.
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Wu QQ, Liang YF, Ma SB, Li H, Gao WY. Stability and stabilization of (-)-gallocatechin gallate under various experimental conditions and analyses of its epimerization, auto-oxidation, and degradation by LC-MS. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:5984-5993. [PMID: 31215023 DOI: 10.1002/jsfa.9873] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 12/05/2018] [Accepted: 06/10/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND (-)-Gallocatechin gallate (GCG) shows multi-bioactivities. Its stability, however, has not been investigated systematically yet. Therefore, the objective of this study was to characterize the stability of GCG and to find ways to stabilize it in biological assays. Furthermore, the epimerization of the compound, its auto-oxidation and degradation were also analyzed by liquid chromatography mass spectrometry (LC-MS). RESULTS The stability of GCG was concentration-dependent and was sensitive to pH, temperature, bivalent cations, and dissolved oxygen level. The results also showed that GCG was not stable in common buffers (50 mmol L-1 , pH 7.4, 37 °C) or in cell culture medium DMEM/F12 under physiological conditions (pH 7.4, 37 °C). Our experiments indicated that nitrogen-saturation and the addition of ascorbic acid (VC) could stabilize GCG in biological assays. In addition, LC-MS determination indicated that GCG was able to be epimerized to its epimer (-)-epigallocatechin gallate (EGCG). Meanwhile it was also able to be auto-oxidized to theasinensin and compound P2 and degraded to gallocatechin and gallic acid in pure water at 100 °C. CONCLUSION The stability of GCG should be seriously considered in research on the bioactivity of it to avoid possible artifacts. Nitrogen-saturation and use of VC are good ways to make GCG stable in biological assays. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qian-Qian Wu
- National Engineering Research Center for Miniaturized Detection Systems and College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, China
| | - Yan-Fei Liang
- National Engineering Research Center for Miniaturized Detection Systems and College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, China
| | - Sheng-Bo Ma
- National Engineering Research Center for Miniaturized Detection Systems and College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, China
| | - Heng Li
- National Engineering Research Center for Miniaturized Detection Systems and College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, China
| | - Wen-Yun Gao
- National Engineering Research Center for Miniaturized Detection Systems and College of Life Sciences, Northwest University, 229 North Taibai Road, Xi'an, China
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Jiang B, Wang Z, Xu C, Liu W, Jiang D. Screening and identification of Aspergillus activity against Xanthomonas oryzae pv. oryzae and analysis of antimicrobial components. J Microbiol 2019; 57:597-605. [PMID: 31073897 DOI: 10.1007/s12275-019-8330-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 02/12/2019] [Accepted: 02/13/2019] [Indexed: 01/24/2023]
Abstract
To screen for Aspergillus activity against Xanthomonas oryzae pv. oryzae and analyse the antimicrobial components involved, 60 Aspergillus spp. were isolated and purified from fruits, soil and other habitats. As-75, an Aspergillus strain that can antagonize Xanthomonas oryzae pv. oryzae, was identified based on the zone of inhibition formed during co-culture. According to morphological, ITS rDNA gene sequencing and phylogenetic tree results, the strain showed close homology to Aspergillus sclerotiorum. The biochemical characterization tests showed that the fermentation broth of strain As-75 exhibited a high capacity for environmental adaptation. The results of the antimicrobial spectrum experiments demonstrated that As-75 exhibited fairly strong antagonistic activity against five plant pathogenic fungi and six plant pathogenic bacteria in vitro. The fermentation broth of strain As-75 displayed maximum stability under fluorescent illumination at temperatures below 60°C at pH 6.5. A substance with antagonistic activity was obtained from strain As-75 via fractional extraction, silica gel column chromatography and thin-layer chromatography. Through mass spectrometry, nuclear magnetic resonance and electrospray ionization mass spectrometry (ESI-MS) analyses, the target compound was identified as (2Z)-2-butenedioic acid-2-(1-methylethenyl)-4-methyl ester; its molecular weight of 170.06 daltons and formula of C8H10O4 identify it as a novel compound. Trials of the preventative and curative effects demonstrated that compound S1 exhibited a better control efficiency than the control against rice bacterial blight. Additionally, the M1 processing method was better, and the efficiency of compound S1 in preventing rice bacterial blight in six rice varieties, TN1, IR24, ZF802, Zhonghua 11, Wuyunjing 21, and Nipponbare, was 78.3%, 77.5%, 74.2%, 75.3%, 70.9%, and 72.1%, respectively.
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Affiliation(s)
- Bei Jiang
- College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang, 321004, P. R. China
| | - Zhiying Wang
- College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang, 321004, P. R. China
| | - Chuxuan Xu
- College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang, 321004, P. R. China
| | - Weijia Liu
- College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang, 321004, P. R. China
| | - Donghua Jiang
- College of Chemistry and Life Science, Zhejiang Normal University, Zhejiang, 321004, P. R. China.
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Cen M, Liang H, Xiong X, Zeng J, Cheng X, Wang S. Development and Validation of a HPLC Method for Determination of Isochlorogenic Acid A in Rat Plasma and Application to Pharmacokinetic Study. J Chromatogr Sci 2018; 55:1037-1042. [PMID: 28977404 DOI: 10.1093/chromsci/bmx072] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Indexed: 11/13/2022]
Abstract
A simple, optimized and sensitive high-performance liquid chromatograph method with ultraviolet (UV) detection (HPLC/UV) was developed and validated for determination of isochlorogenic acid A in rat plasma. The analytes were successfully separated on a Shodex C18 column (5 μm particle size, 250 mm × 4.6 mm, i.d.), the mobile phase contained 0.1% phosphoric acid aqueous solution (solvent A) and methanol (solvent B) (50:50, v/v) at a flow rate of 1.0 mL/min. The wavelength for UV detection was set at 300 nm and the column temperature was maintained in 30°C. Calibration curve for isochlorogenic acid A was found to be good linear over the range of 0.04-40 μg/mL (r = 0.9998). The intra- and inter-day precisions (relative standard deviation) were within 7.63% and the assay accuracy (RE) ranged from -1.41 to 3.25%. The limit of detection and the lower limit of quantification were 0.012 and 0.04 μg/mL, respectively. The validated method was successfully applied to pharmacokinetic study of isochlorogenic acid A in rats for the first time. The pharmacokinetic parameters were evaluated after the rats were administered intravenously and intragastrically isochlorogenic acid A at the single dose of 18 mg/kg, respectively. The absolute bioavailability was calculated to be 22.6%.
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Affiliation(s)
- Meifeng Cen
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
| | - Heng Liang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
| | - Xiaohong Xiong
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
| | - Jie Zeng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
| | - Xuange Cheng
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
| | - Sujun Wang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou Higher Education Mega Center, 280 Wai Huan East Road, Guangzhou 510006, China
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Gaber DM, Nafee N, Abdallah OY. Myricetin solid lipid nanoparticles: Stability assurance from system preparation to site of action. Eur J Pharm Sci 2017; 109:569-580. [DOI: 10.1016/j.ejps.2017.08.007] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 08/12/2017] [Accepted: 08/13/2017] [Indexed: 11/28/2022]
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Cheng YT, Lu CC, Yen GC. Phytochemicals enhance antioxidant enzyme expression to protect against NSAID-induced oxidative damage of the gastrointestinal mucosa. Mol Nutr Food Res 2017; 61. [PMID: 27883262 DOI: 10.1002/mnfr.201600659] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 11/15/2016] [Accepted: 11/17/2016] [Indexed: 12/17/2022]
Abstract
The gastrointestinal (GI) mucosa provides the first protective barrier for digested food and xenobiotics, which are easily attacked by toxic substances. Nonsteroidal anti-inflammatory drugs, including aspirin, diclofenac, indomethacin, and ketoprofen, are widely used in clinical medicine, but these drugs may cause oxidative stress, leading to GI damage such as ulcers. Lansoprazol, omeprazole, and other clinical drugs are widely used to treat duodenal and gastric ulcers and have been shown to have multiple biological functions, such as antioxidant activity and the ability to upregulate antioxidant enzymes in vivo. Therefore, the reduction of oxidative stress may be an effective curative strategy for preventing and treating nonsteroidal anti-inflammatory drug induced ulcers of the GI mucosa. Phytochemicals, such as dietary phenolic compounds, phenolic acids, flavan-3-ols, flavonols, flavonoids, gingerols, carotenes, and organosulfur, are common antioxidants in fruits, vegetables, and beverages. A large amount of evidence has demonstrated that natural phytochemicals possess bioactivity and potential health benefits, such as antioxidant, anti-inflammatory, and antibacterial benefits, and they can prevent digestive disease processes. In this review, we summarize the literature on phytochemicals with biological effects, such as angiogenic, antioxidant, antiapoptotic, anti-inflammatory, and antiulceration effects, and their related mechanisms are also discussed.
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Affiliation(s)
- Yu-Ting Cheng
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Chi-Cheng Lu
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Gow-Chin Yen
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
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Development and Evaluation of a Novel Drug Delivery: Pluronics/SDS Mixed Micelle Loaded With Myricetin In Vitro and In Vivo. J Pharm Sci 2016; 105:1535-43. [DOI: 10.1016/j.xphs.2016.01.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Revised: 01/04/2016] [Accepted: 01/14/2016] [Indexed: 01/17/2023]
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Park JE, Kim KE, Choi YJ, Park YD, Kwon HJ. The stability of water- and fat-soluble vitamin in dentifrices according to pH level and storage type. Biomed Chromatogr 2015; 30:191-9. [DOI: 10.1002/bmc.3535] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 05/08/2015] [Accepted: 06/05/2015] [Indexed: 11/10/2022]
Affiliation(s)
- Jung-Eun Park
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Ki-Eun Kim
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Yong-Jun Choi
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Yong-Duk Park
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
| | - Ha-Jeong Kwon
- Department of Preventive and Social Dentistry and Institue of Oral Biology, School of Dentistry; Kyung Hee University; Dongdaemoon-gu Seoul 130-701 Republic of Korea
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Li Z, Xiao S, Ai N, Luo K, Fan X, Cheng Y. Derivative multiple reaction monitoring and single herb calibration approach for multiple components quantification of traditional Chinese medicine analogous formulae. J Chromatogr A 2015; 1376:126-42. [DOI: 10.1016/j.chroma.2014.12.024] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2014] [Revised: 12/04/2014] [Accepted: 12/06/2014] [Indexed: 12/20/2022]
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