1
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Lin Z, Dai W, Hu S, Chen D, Yan H, Zeng L, Lin Z. Stored white tea ameliorates DSS-induced ulcerative colitis in mice by modulating the composition of the gut microbiota and intestinal metabolites. Food Funct 2024; 15:4262-4275. [PMID: 38526548 DOI: 10.1039/d3fo05176e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2024]
Abstract
Changes in the chemical composition of white tea during storage have been studied extensively; however, whether such chemical changes impact the efficacy of white tea in ameliorating colitis remains unclear. In this study, we compared the effects of new (2021 WP) and 10-year-old (2011 WP) white tea on 3% dextrose sodium sulfate (DSS)-induced ulcerative colitis in mice by gavaging mice with the extracts at 200 mg kg-1 day-1. Chemical composition analysis showed that the levels of 50 compounds, such as flavanols, dimeric catechins, and amino acids, were significantly lower in the 2011 WP extract than in the 2021 WP extract, whereas the contents of 21 compounds, such as N-ethyl-2-pyrrolidinone-substituted flavan-3-ols, theobromine, and (-)-epigallocatechin-3-(3''-O-methyl) gallate, were significantly higher. Results of the animal experiments showed that 2011 WP ameliorated the pathological symptoms of colitis, which was superior to the activity of 2021 WP, and this effect was likely enhanced based on the decreasing of the relative abundance of the g_bacteroides and g_Escherichia-Shigella flora in mice with colitis and promoting the conversion of primary bile acids to secondary bile acids in the colon. These results will facilitate the development of novel functional products from white tea.
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Affiliation(s)
- Zhiyuan Lin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Weidong Dai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Shanshan Hu
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Dan Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Han Yan
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing 400715, China.
| | - Zhi Lin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No. 9 Meiling South Road, West Lake District, Hangzhou, Zhejiang 310008, China.
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2
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Gao J, Chen D, Xie D, Peng J, Hu Z, Lin Z, Dai W. Investigations of the highly efficient processing technique, chemical constituents, and anti-inflammatory effect of N-ethyl-2-pyrrolidinone-substituted flavan-3-ol (EPSF)-enriched white tea. Food Chem 2024; 450:139328. [PMID: 38626712 DOI: 10.1016/j.foodchem.2024.139328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/29/2024] [Accepted: 04/09/2024] [Indexed: 04/18/2024]
Abstract
N-Ethyl-2-pyrrolidinone-substituted flavan-3-ols (EPSFs) are a newly discovered compound class in tea with various bioactivities. This study aimed to develop a novel processing technique to enhance EPSF contents in white tea efficiently. Using optimal processing parameters of 125 °C and 30 min in a high-temperature sterilizing oven, total EPSF content significantly increased by 1.42-18.80-fold to 1.57-6.22 mg/g without impacting sensory characteristics. Metabolomics analysis revealed elevated levels of nucleosides, nucleotides, bases, theaflavins, flavonol aglycones, EPSFs, and most flavone-C-glycosides, as well as decreased levels of amino acids, procyanidins, theasinensins, several flavanols, and flavonol-O-glycosides after EPSF-enrichment treatment. Furthermore, the EPSF-enriched white tea exhibited notable anti-inflammatory effects, mitigating xylene-induced ear edema in mice and carrageenan-induced paw edema and cotton ball-induced granulomas in rats. This study developed a new processing technique for highly efficient enhancement of EPSFs in white tea and demonstrated that EPSF-enriched white tea has a potential to serve as effective anti-inflammatory dietary supplement.
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Affiliation(s)
- Jianjian Gao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Dongchao Xie
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Zhengyan Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, China.
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
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3
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Yan H, Lin Z, Li W, Gao J, Li P, Chen Q, Lv H, Zhang Y, Dai W, Lin Z, Zhu Y. Unraveling the Enantiomeric Distribution of Glycosidically Bound Linalool in Teas ( Camellia sinensis) and Their Acidolysis Characteristics and Pyrolysis Mechanism. J Agric Food Chem 2024. [PMID: 38607252 DOI: 10.1021/acs.jafc.4c00037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Glycosidically bound linalool plays important roles in the formation of excellent tea flavor, while their enantiomeric distribution in teas and the actual transformations with free linalool are still unclear. In this study, a novel chiral ultrahigh performance liquid chromatography-mass spectrometry/mass spectrometry approach to directly analyze linalyl-β-primeveroside and linalyl-β-d-glucopyranoside enantiomers in teas was established and then applied in 30 tea samples. A close transformation relationship existed between the two states of linalool for their consistent dominant configurations (most S-form) and corresponding distribution trend in most teas (r up to 0.81). The acidolysis characterization indicated that free linalool might be slowly released from linalyl-β-primeveroside with stable enantiomeric ratios during long-term withering of white tea in a weakly acidic environment, along with other isomerized products, e.g., geraniol, nerol, α-terpineol, etc. Furthermore, a novel online thermal desorption-gas chromatography-mass spectrometry approach was established to simulate the pyrolysis releasing of linalyl-β-primeveroside during tea processing. Interestingly, free linalool was not the selected pyrolysis product of linalyl-β-primeveroside but rather trans/cis-2,6-dimethyl-2,6-octadiene during the high-fire roasting or baking step of oolong and green teas. The identification of above high-fire chemical marks presented great potential to scientifically evaluate the proper thermal conditions in the practical production of tea.
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Affiliation(s)
- Han Yan
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhiyuan Lin
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
- Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Weixuan Li
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Jianjian Gao
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Pengliang Li
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Qincao Chen
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Haipeng Lv
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Yue Zhang
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Weidong Dai
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Zhi Lin
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Yin Zhu
- Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
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4
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Dong X, Shi X, Cui Z, Dai W, Dong F. Dynamic Hydroxylation Enhances Hydrogen Atom Abstraction from Water for Nitrogen Fixation Revealed by Isotope Labeling in Situ Fourier-Transform Infrared Spectroscopy. ACS Nano 2024; 18:9670-9677. [PMID: 38516986 DOI: 10.1021/acsnano.4c00975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Employing water as a hydrogen source to participate in the hydrogen atom transfer (HAT) process is a low-cost and carbon-free process demonstrating great economic and environmental potential in catalysis. However, the low efficiency of hydrogen atom abstraction from water leads to slow kinetics of HAT for most hydrogenative reactions. Here, we prepared ultrathin Bi4O5Cl2 nanosheets where the surface can be in situ reconstructed via hydroxylation under light illumination to facilitate the abstraction of hydrogen atoms from pure water for efficient nitrogen fixation. Consequently, the isotope labeling in situ Fourier-transform infrared spectroscopy (FT-IR) involving H2O and D2O has clearly revealed that the hydroxyl groups tend to be adsorbed on the chloride vacancy sites on the Bi4O5Cl2 surface to form hydroxylated surfaces, where the hydroxylated photocatalyst surface enables partial dehydrogenation of water into H2O2, allowing the utilization of H atoms for efficient of N2 hydrogenation via HAT steps. This work elucidates the in-depth reaction mechanism of hydrogen atom extraction from H2O molecules via the light-generated chloride vacancy to promote photocatalytic nitrogen fixation, ultimately enabling the inspiration and providing crucial rules for the design of important functional materials that can efficiently deliver active hydrogen for chemical synthesis.
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Affiliation(s)
- Xing'an Dong
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
- College of Physics and Electronic Engineering, Chongqing Normal University, Chongqing 401331, People's Republic of China
| | - Xian Shi
- School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, People's Republic of China
| | - Zhihao Cui
- Department of Chemistry and Biochemistry, The Ohio State University, Columbus, Ohio 43210, United States
| | - Weidong Dai
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
| | - Fan Dong
- Research Center for Carbon-Neutral Environmental & Energy Technology, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, People's Republic of China
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5
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Chen Z, Dai W, Xiong M, Gao J, Zhou H, Chen D, Li Y. Metabolomics investigation of the chemical variations in white teas with different producing areas and storage durations. Food Chem X 2024; 21:101127. [PMID: 38292681 PMCID: PMC10825419 DOI: 10.1016/j.fochx.2024.101127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/04/2024] [Accepted: 01/05/2024] [Indexed: 02/01/2024] Open
Abstract
In this study, we employed nontargeted metabolomics and quantitative analysis to explore the variations in metabolites among white teas from different production areas and with varying storage durations. A total of 83 compounds exhibited differential levels between Zhenghe and Fuding white tea, 89 between Zhenghe and Jinggu, and 75 between Fuding and Jinggu white tea. Concerning the storage of white tea, the concentrations of flavanols, dimeric catechins, and amino acids decreased over time, while N-ethyl-2-pyrrolidone-substituted flavanols (EPSFs), caffeine, adenosine monophosphate (AMP), and adenosine increased. Galloylated flavanols showed a higher propensity to form EPSFs with theanine compared to nongalloylated flavanols during storage. Theanine and epigallocatechin gallate were more inclined to generate S-configuration EPSFs during storage in Fuding and Jinggu white tea samples, while R-configuration EPSFs were more readily formed in Zhenghe white tea samples. This study offers a comprehensive understanding of the changes in metabolites during the storage of white tea.
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Affiliation(s)
- Zewen Chen
- College of Tea, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Weidong Dai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Mengfan Xiong
- College of Tea, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Jianjian Gao
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Hongjie Zhou
- College of Tea, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
| | - Dan Chen
- Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Yali Li
- College of Tea, Yunnan Agricultural University, Kunming, Yunnan, 650201, China
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6
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Chen Q, Fu Y, Heng W, Yu S, Xie F, Dong F, Lin Z, Dai W, Fu H. Re-rolling treatment in the fermentation process improves the taste and liquor color qualities of black tea. Food Chem X 2024; 21:101143. [PMID: 38312489 PMCID: PMC10837478 DOI: 10.1016/j.fochx.2024.101143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/07/2023] [Accepted: 01/11/2024] [Indexed: 02/06/2024] Open
Abstract
Fermentation is a vital process occurred under the premise of rolling affecting black tea quality. Theoretically, re-rolling during fermentation will remodel the biochemical conditions of tea leaves, and thus influence black tea quality. Herein, we studied the effect of re-rolling on black tea taste and liquor color. Sensory evaluation showed that re-rolling significantly weakened the astringency taste and improved the redness and luminance of liquor. With re-rolling, the color attributes of a* and L* and the contents of theaflavins and thearubigins were significantly improved. Metabolomics analysis showed that the contents of 110 non-volatile compounds were significantly different among black teas with different rolling treatments. In summary, re-rolling accelerated the oxidation of polyphenols into pigments, the hydrolysis of proteins into amino acids, and the metabolism of alkaloids, organic acids, glycosidically-bound volatiles, and lipids during the fermentation period. Our study provided a novel and simple way to improve black tea quality.
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Affiliation(s)
- Qincao Chen
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Xinjian District, Nanchang, Jiangxi Province 330045, China
| | - Ying Fu
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Xinjian District, Nanchang, Jiangxi Province 330045, China
| | - Wenting Heng
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Xinjian District, Nanchang, Jiangxi Province 330045, China
| | - Shuai Yu
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No.9 Meiling South Road, West Lake District, Hangzhou, Zhejiang Province 310008, China
| | - Feng Xie
- Horticulture Research Institute, Jiangxi Academy of Agricultural Sciences, No. 602 Nanlian Avenue, Nanchang County, Nanchang, Jiangxi Province 330200, China
| | - Fang Dong
- Horticulture Research Institute, Jiangxi Academy of Agricultural Sciences, No. 602 Nanlian Avenue, Nanchang County, Nanchang, Jiangxi Province 330200, China
| | - Zhi Lin
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No.9 Meiling South Road, West Lake District, Hangzhou, Zhejiang Province 310008, China
| | - Weidong Dai
- Tea Research Institute, Chinese Academy of Agricultural Sciences, No.9 Meiling South Road, West Lake District, Hangzhou, Zhejiang Province 310008, China
| | - Haihui Fu
- College of Agriculture, Jiangxi Agricultural University, No. 1101 Zhimin Avenue, Xinjian District, Nanchang, Jiangxi Province 330045, China
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7
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Xiao L, Mou S, Dai W, Yang W, Cheng Q, Liu S, Dong F. Identification of Cu(111) as Superior Active Sites for Electrocatalytic NO Reduction to NH 3 with High Single-Pass Conversion Efficiency. Angew Chem Int Ed Engl 2024; 63:e202319135. [PMID: 38185758 DOI: 10.1002/anie.202319135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 12/28/2023] [Accepted: 01/05/2024] [Indexed: 01/09/2024]
Abstract
Opting for NO as an N source in electrocatalytic NH3 synthesis presents an intriguing approach to tackle energy and environmental challenges. However, blindly pursuing high NH3 synthesis rates and Faradaic efficiency (FE) while ignoring the NO conversion ratio could result in environmental problems. Herein, Cu nanosheets with exposed (111) surface is fabricated and exhibit a NO-to-NH3 yield rate of 371.89 μmol cm-2 h-1 (flow cell) and the highest FE of 93.19±1.99 % (H-type cell). The NO conversion ratio is increased to the current highest value of 63.74 % combined with the development of the flow cell. Additionally, Crystal Orbital Hamilton Population (COHP) clearly reveals that the "σ-π* acceptance-donation" is the essence of the interaction between the Cu and NO as also supported by operando attenuated total reflection infrared spectroscopy (ATR-IRAS) in observing the key intermediate of NO- . This work not only achieves a milestone NO conversion ratio for electrocatalytic NO-to-NH3 , but also proposes a new descriptor that utilizes orbital hybridization between molecules and metal centers to accurately identify the real active sites of catalysts.
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Affiliation(s)
- Lei Xiao
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Shiyong Mou
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Weidong Dai
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Weiping Yang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Qin Cheng
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Siyuan Liu
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
| | - Fan Dong
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
- Research Center for Carbon-Neutral Environmental & Energy Technology, University of Electronic Science and Technology of China, Chengdu, 611731, P. R. China
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Zhang Y, Yan K, Peng Q, Baldermann S, Zhu Y, Dai W, Feng S, Simal-Gandara J, Fu J, Lv H, Lin Z, Shi J. Comprehensive analysis of pigment alterations and associated flavor development in strip and needle green teas. Food Res Int 2024; 175:113713. [PMID: 38128982 DOI: 10.1016/j.foodres.2023.113713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 11/16/2023] [Accepted: 11/22/2023] [Indexed: 12/23/2023]
Abstract
Strip/needle green teas (SGT/NGT) processed using innovative technologies are in high demand; however, mechanisms behind their color and flavor have not been comprehensively studied. We aimed to reveal the dynamics of major pigmented components (carotenoids, lipids, flavonoids, and Maillard products) and their contributions to the flavor of green teas. The total content of flavonoids in SGT and NGT were 255 ± 4.51 and 201 ± 3.91 mg·g-1, respectively; these values are slightly lower than that in fresh leaves (FLs), resulting in a fresh and sweet aftertaste. In average, carotene content in SGT/NGT (24.8 μg·g-1) was higher than in FL (17.4 μg·g-1), whilst xanthophyll content (603 μg·g-1) decreased to one-half of that in FL (310 μg·g-1). Among the 218 primary metabolites, glutamine, glutamic acid, and arginine were found to accumulate and were dominate contributors for the umami and sweet taste. Notably, more than 96 volatiles were screened and revealed their correlations with carotenoids, lipids, and amino acids. Overall, the synergism between pigments and their non-enzymatic derivates' contribution to GT characterized flavor was illustrated.
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Affiliation(s)
- Yongcheng Zhang
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Kangni Yan
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Qunhua Peng
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Susanne Baldermann
- University of Bayreuth, Food Metabolome, Faculty of Life Sciences: Food, Nutrition, Kulmbach, Germany
| | - Yin Zhu
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Shan Feng
- Mass Spectrometry & Metabolomics Core Facility, The Biomedical Research Core Facility, Westlake University, Hangzhou 310024, China
| | - Jesus Simal-Gandara
- Universidade de Vigo, Nutrition and Bromatology Group, Analytical Chemistry and Food Science Department, Faculty of Science, E-32004 Ourense, Spain
| | - Jianyu Fu
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
| | - Jiang Shi
- Key Laboratory of Tea Biology and Resource Utilization of Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China.
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9
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Li Y, Zhou H, Tian T, Hou Y, Chen D, Zhou J, Liu S, Yu Y, Dai W, Zhou T. Nontargeted and targeted metabolomics analysis for evaluating the effect of "golden flora" amount on the sensory quality, metabolites, and the alpha-amylase and lipase inhibitory activities of Fu brick tea. Food Chem 2023; 416:135795. [PMID: 36871505 DOI: 10.1016/j.foodchem.2023.135795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 03/06/2023]
Abstract
To investigate the effects of "golden flora" amount on the sensory quality, metabolites and bioactivities of Fu brick tea (FBT), FBT samples with different "golden flora" amounts were prepared from the same materials by adjusting the water content before pressing. With the increase of "golden flora" in samples, the tea liquor color changed from yellow to orange red and the astringent taste gradually diminished. Targeted analysis demonstrated that (-)-epigallocatechin gallate, (-)-epicatechin gallate, and most amino acids gradually decreased as the increase of "golden flora". Seventy differential metabolites were identified by untargeted analysis. Among them, sixteen compounds including two Fuzhuanins and four EPSFs were positively correlated with "golden flora" amount (P < 0.05). The FBT samples with "golden flora" exhibited significantly higher inhibitory potency on α-amylase and lipase than the samples without "golden flora". Our results provide a theoretical basis of guiding FBT processing based on desired sensory quality and metabolites.
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Affiliation(s)
- Yingying Li
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - He Zhou
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Tian Tian
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yihong Hou
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
| | - Jie Zhou
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Shuyuan Liu
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Youben Yu
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
| | - Tianshan Zhou
- College of Horticulture, Northwest A&F University, Yangling 712100, Shaanxi, China.
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10
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Wu W, Shi J, Jin J, Liu Z, Yuan Y, Chen Z, Zhang S, Dai W, Lin Z. Comprehensive metabolic analyses provide new insights into primary and secondary metabolites in different tissues of Jianghua Kucha tea ( Camellia sinensis var. assamica cv. Jianghua). Front Nutr 2023; 10:1181135. [PMID: 37275632 PMCID: PMC10235520 DOI: 10.3389/fnut.2023.1181135] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 04/12/2023] [Indexed: 06/07/2023] Open
Abstract
Background Jianghua Kucha (JHKC) is a special tea germplasm with enriched specialized secondary metabolites, including theacrine, non-epimeric flavanols and methylated flavanols. Moreover, primary metabolites provide precursors and energy for the production of secondary metabolites. However, the accumulation patterns of primary and secondary metabolites in different tissues of JHKC are unclear. Methods The changes of primary and secondary metabolites and related metabolic pathways (primary and secondary metabolism) in different JHKC tissues (the bud, 1st-4th leaves, and new stem) were investigated via metabolomics analysis with ultra-high-performance liquid chromatography quadrupole time-of-flight mass spectrometry (UHPLC-QTOF/MS). Results Significant differences were observed in 68 primary and 51 secondary metabolites mainly related with the pathways of starch and sucrose, amino acids, caffeine, and flavanols metabolism and TCA cycle. The bud exhibited higher levels of glucose-6-phosphate, citric acid, most amino acids, theobromine, catechin-gallate, epicatechin-gallate, procyanidins, and theasinensins; the 1st leaf showed higher levels of caffeine and epigallocatechin-3-gallate; and the 4th leaf contained higher levels of most monosaccharides, theacrine, and epigallocatechin-3-O-(3"-O-methyl)-gallate. In addition, primary metabolites and important secondary metabolites had certain correlations. Conclusion This study provides comprehensive insight into primary and secondary metabolites in JHKC and offers guidelines for efficiently utilizing specialized metabolites of JHKC in the future.
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Affiliation(s)
- Wenliang Wu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Jiang Shi
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Jiqiang Jin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Zhen Liu
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Yong Yuan
- Hunan Tea Group Co., Ltd., Changsha, Hunan, China
| | - Zhida Chen
- Chenzhou Guyanxiang Tea Co., Ltd., Chenzhou, Hunan, China
| | - Shuguang Zhang
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan, China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Key Laboratory of Biology, Genetics and Breeding of Special Economic Animals and Plants, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, China
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Yao ZZ, Yan JX, Xu NA, Kang RT, Li XW, Zhou HX, Dai W, Ouyang SS, Liu YX, Luo JY, Zhong Y. [Study on related factors and characteristics of multimorbidity of overweight and obesity-related diseases in children in Hunan Province]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:747-752. [PMID: 37165822 DOI: 10.3760/cma.j.cn112150-20220707-00692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
From January 2019 to December 2021, overweight and obese children who visited in health outpatient Center of Hunan Children's Hospital were studied to explore and analyze the rate, related factors and patterns of multimorbidity of overweight and obesity-related diseases in children in Hunan Province. Univariate and multivariate logistic regression models were used to analyze the multimorbidity-related factors of overweight and obesity-related diseases in children. Association rules (apriori algorithm) were used to explore the multimorbidity patterns of overweight and obesity-related diseases in children. A total of 725 overweight and obese children were included in this study. The multimorbidity rate of overweight and obesity-related diseases in children was 46.07% (334/725). Age, waist circumference, the frequency of food consumption such as hamburgers and fries and adding meals before bedtime were multimorbidity-related factors of overweight and obesity-related diseases in children. The multimorbidity associated with nonalcoholic fatty liver disease (NAFLD) was relatively common. The patterns with the top three support degrees were "NAFLD+dyslipidemia","NAFLD+hypertension" and "NAFLD+hyperuricemia". The patterns with the top three confidence and elevation degrees were "Hypertension+dyslipidemia => NAFLD","Hyperuricemia => NAFLD" and "NAFLD+hypertension => dyslipidemia".
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Affiliation(s)
- Z Z Yao
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - J X Yan
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - N A Xu
- Department of Children Care, Hunan Children's Hospital, Changsha 410008, China
| | - R T Kang
- Department of Children Care, Hunan Children's Hospital, Changsha 410008, China
| | - X W Li
- Department of School health, Ningxiang Center for Disease Control and Prevention, Changsha 410008, China
| | - H X Zhou
- Department of School health, Ningxiang Center for Disease Control and Prevention, Changsha 410008, China
| | - W Dai
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - S S Ouyang
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - Y X Liu
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - J Y Luo
- Department of Maternal and Children Care, Xiangya School of Public Health, Central South University, Changsha 410008, China
| | - Y Zhong
- Department of Children Care, Hunan Children's Hospital, Changsha 410008, China
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Gao J, Zhou M, Chen D, Xu J, Wang Z, Peng J, Lin Z, Yu S, Lin Z, Dai W. High-throughput screening and investigation of the inhibitory mechanism of α-glucosidase inhibitors in teas using an affinity selection-mass spectrometry method. Food Chem 2023; 422:136179. [PMID: 37119598 DOI: 10.1016/j.foodchem.2023.136179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 02/28/2023] [Accepted: 04/14/2023] [Indexed: 05/01/2023]
Abstract
An affinity selection-mass spectrometry method was applied for high-throughput screening of α-glucosidase (AGH) inhibitors from teas. Fourteen out of nineteen screened AGH inhibitor candidates were clustered as galloylated polyphenols (GPs). "AGH-GPs" interaction studies, including enzyme kinetics, fluorescence spectroscopy, circular dichroism, and molecular docking, jointly suggested that GPs noncompetitively inhibit AGH activity by interacting with amino acid residues near the active site of AGH and inducing changes in AGH secondary structure. Representative GPs and white tea extract (WTE) showed comparable AGH inhibition effects in Caco2 cells and postprandial hypoglycemic efficacy in diabetic mice as acarbose. The area under the curve of oral sucrose tolerance test was lower by 8.16%, 6.17%, and 7.37% than control group in 15 mg/kg EGCG, 15 mg/kg strictinin, and 150 mg/kg WTE group, respectively. Our study presents a high-efficiency approach to discover novel AGH inhibitors and elucidates a potential mechanism by which tea decreases diabetes risks.
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Affiliation(s)
- Jianjian Gao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Mengxue Zhou
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China
| | - Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China
| | - Jiye Xu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhe Wang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhiyuan Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China
| | - Shuai Yu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China.
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang, 310008, China.
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Shi X, Wang L, Dai W, Dong X, Bai Y, Ye L. CO 2 Photoreduction Catalyzed by Cu-Deficient Cu 1.95S@CuS: Enhanced Performance via Boosted Directional Interfacial Charge Transfer. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023]
Affiliation(s)
- Xian Shi
- School of Chemistry and Environmental Engineering, Sichuan University of Science and Engineering, Zigong 643000, China
| | - Li Wang
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
| | - Weidong Dai
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Xing’an Dong
- Research Center for Environmental and Energy Catalysis, Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, Chengdu 611731, China
| | - Yang Bai
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, School of Oil and Natural Gas Engineering, Southwest Petroleum University, Chengdu 610500, China
| | - Liqun Ye
- College of Materials and Chemical Engineering, Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials, China Three Gorges University, Yichang 443002, China
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Xu J, Dai W, Goldberg J, Shah P, Hu I, Chen C, deFilippi C, Sun J. Explainable Machine Learning to Improve Donor-Recipient Matching at Time of Heart Transplant. J Heart Lung Transplant 2023. [DOI: 10.1016/j.healun.2023.02.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
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15
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Liang T, Dai W, Zhang Z, Bempah G, Shi L, Lu C. Altitudinal gradients and body size variation among Chinese lizards in different terrains. J Zool (1987) 2023. [DOI: 10.1111/jzo.13055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
Affiliation(s)
- T. Liang
- Wildlife Conservation and Utilization Nanjing Forestry University Nanjing Jiangsu China
| | - W. Dai
- Wildlife Conservation and Utilization Nanjing Forestry University Nanjing Jiangsu China
| | - Z. Zhang
- Wildlife Conservation and Utilization Nanjing Forestry University Nanjing Jiangsu China
| | - G. Bempah
- Wildlife Conservation and Utilization Nanjing Forestry University Nanjing Jiangsu China
| | - L. Shi
- College of Life Sciences Xinjiang Agricultural University Urumqi Xinjiang China
| | - C. Lu
- Wildlife Conservation and Utilization Nanjing Forestry University Nanjing Jiangsu China
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Ma GC, Zou LL, Dai W, Wang ZZ, Cao YH. The association between glucose fluctuation with sarcopenia in elderly patients with type 2 diabetes mellitus. Eur Rev Med Pharmacol Sci 2023; 27:1912-1920. [PMID: 36930518 DOI: 10.26355/eurrev_202303_31557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
OBJECTIVE Growing evidence shows that sarcopenia is more prevalent in patients with type 2 diabetes mellitus (T2DM) than in the normal population. However, currently, data on the relationship between blood glucose fluctuation and sarcopenia in elderly patients with T2DM are still limited. PATIENTS AND METHODS In this study, 280 patients ≥ 60 years with T2DM were divided into sarcopenic group and non-sarcopenic group, according to the diagnostic criteria of the 2019 Asian Working Group for Sarcopenia. They wore MeiQi to acquire the indexes including time in range (TIR), time above range (TAR), time below range (TBR), mean amplitude of glycemic excursion (MAGE), coefficient of Variation (CV), blood glucose standard deviation (SD), largest amplitude of glycemic excursions (LAGE) and mean glucose (MG). The prevalence rate of sarcopenia was statistically analyzed and the different indicators of glucose fluctuation between the two groups were compared. We analyzed the indexes of glucose fluctuation and appendicular skeletal muscle mass index (ASMI), handgrip strength, the time of five times sit to stand test (FTSST) with Spearman's correlation analysis. Logistic regression was used to analyze the influence factors for sarcopenia. RESULTS The prevalence of sarcopenia was 15.36%. TIR, MG and TAR were correlated with ASMI, handgrip strength, the time of FTSST. MG and TAR were risk factors for sarcopenia, while TIR was the protective factor of sarcopenia. After adjusting mixing factors, logistic regression analysis showed that TIR was an independent protective factor. The result of the Chi-square test showed that the incidence of sarcopenia in different TIR ranges was different: the proportion of patients with sarcopenia was 40.48% (TIR ≤50%), 20.41% (50%<TIR≤70%) and 8.47% (TIR >70%). CONCLUSIONS TIR is associated with sarcopenia in elderly T2DM patients. Furtherly, the incidence rate of sarcopenia decreases with the increase of TIR.
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Affiliation(s)
- G-C Ma
- Department of Endocrinology, Hefei Second People's Hospital Affiliated to Bengbu Medical University, Anhui, Hefei, China.
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Gao J, Wang Z, Chen D, Peng J, Xie D, Lin Z, Lin Z, Dai W. Metabolomic characterization of the chemical compositions of Dracocephalum rupestre Hance. Food Res Int 2022; 161:111871. [DOI: 10.1016/j.foodres.2022.111871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/04/2022] [Accepted: 08/22/2022] [Indexed: 11/24/2022]
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18
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Yu Y, Ye A, Chen C, Dai W, Liu X. The impact of family doctor system on patients' utilisation of general practitioner in primary care facilities-Evidence from Hangzhou, China. Int J Health Plann Manage 2022; 37:3089-3102. [PMID: 35801256 DOI: 10.1002/hpm.3540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 02/03/2022] [Accepted: 06/22/2022] [Indexed: 11/06/2022] Open
Abstract
OBJECTIVE This study aims to examine whether participating in the contracted family doctor system increases patients' utilisation of primary care general practitioner for multiple disease outcomes in China. METHODS Binary logistic regression models were estimated using data collected from 372 community residents in nine selected districts of Hangzhou, China. RESULTS Findings revealed that (1) for patients with influenza, diabetes, upper respiratory infection, and gingivitis, those who participated in the contracted family doctor system were approximately 4.3 times, 98.4%, 92.5%, and 52.8% more likely to choose primary care general practitioners (GP) for their initial diagnosis, respectively, as compared with their counterparts who did not have contracted family doctors; (2) For patients with stroke or cerebrovascular disease and cholecystitis or cholelithiasis, those who had contracted family doctors were 1.111 times and 80.6% more likely to choose primary care GP for their subsequent disease maintenance, respectively, as compared to their counterparts without contracted family doctors. CONCLUSION Our findings indicate that the contracted family doctor system not only increases the utilisation of primary care GP for patients with many chronic conditions but also promotes the overall completion of China's hierarchical medical system in the long run. Policy implications were provided to help policymakers actively construct and develop the contracted family doctor system to promote the hierarchical medical system in China.
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Affiliation(s)
- Yang Yu
- School of Urban and Environmental Science, Central China Normal University, Wuhan, Hubei, China
| | - Aizhen Ye
- School of Data Sciences, Zhejiang University of Finance and Economics, Hangzhou, Zhejiang, China
| | - Cen Chen
- School of Public Administration, Zhejiang University of Finance and Economics, Hangzhou, Zhejiang, China
| | - Weidong Dai
- School of Public Administration, Zhejiang University of Finance and Economics, Hangzhou, Zhejiang, China
| | - Xu Liu
- School of Public Administration, Zhejiang University of Finance and Economics, Hangzhou, Zhejiang, China
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Dai W, Liu H, Chen Y, Chen Z. Imaging Findings and Clinical Analysis of Primary Intracranial Pure Yolk Sac Tumors in Children and Adolescents: A Retrospective Study from China. AJNR Am J Neuroradiol 2022; 43:1054-1059. [PMID: 35798388 DOI: 10.3174/ajnr.a7556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 05/04/2022] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Primary intracranial pure yolk sac tumor is very rare. Our aim was to summarize the characteristics of primary intracranial pure yolk sac tumors from the clinical and imaging aspects in a retrospective study. MATERIALS AND METHODS We studied 5 patients with primary intracranial pure yolk sac tumors in Guangzhou Women and Children's Medical Center from January 2015 to June 2021. A comprehensive literature search was performed on the electronic database of the China National Knowledge Infrastructure (1990 to June 2021). Clinical data based on age, sex, treatment, CT, and MR imaging findings were collected and analyzed. RESULTS A total of 25 patients were included in the study, 21 boys and 4 girls. Twenty-one patients underwent plain MR imaging and an enhanced examination, 9 patients underwent DWI, and 12 patients underwent plain CT and/or an enhanced examination. The tumors were posterior fossa in 9 cases and supratentorial in 16 cases. All tumors showed marked enhancement after enhanced scanning by MR imaging or CT. The signal on DWI was similar to that of the cerebral cortex, and the ADC map was similar to or slightly higher than that of the cerebral cortex. Among the cases, 13 were followed up from 2 months to 5 years. There was no recurrence or metastasis in 9 patients with postoperative chemotherapy or chemoradiotherapy followed up for 1.5-5 years. Four patients died 2 months to 1.5 years after only an operation, or chemoradiotherapy but no operation. CONCLUSIONS There are some relatively specific imaging findings of primary intracranial yolk sac tumors that could assist in their diagnosis. Surgery combined with radiation therapy and/or chemotherapy can achieve a better prognosis.
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Affiliation(s)
- W Dai
- From the Department of Radiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - H Liu
- From the Department of Radiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Y Chen
- From the Department of Radiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Z Chen
- From the Department of Radiology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
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Guo L, Huang W, Dai W, Yang J. Cross-country skiing and risk of atrial fibrillation: A meta-analysis of cohort studies. Sci Sports 2022. [DOI: 10.1016/j.scispo.2021.08.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Chen D, Sun Z, Gao J, Peng J, Wang Z, Zhao Y, Lin Z, Dai W. Metabolomics combined with proteomics provides a novel interpretation of the compound differences among Chinese tea cultivars (Camellia sinensis var. sinensis) with different manufacturing suitabilities. Food Chem 2022; 377:131976. [PMID: 34979399 DOI: 10.1016/j.foodchem.2021.131976] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 12/17/2021] [Accepted: 12/27/2021] [Indexed: 01/13/2023]
Abstract
Different tea cultivars differ in their manufacturing suitability. In this study, metabolomics and proteomics were applied to investigate the metabolite and protein differences in fresh leaves from 23 Chinese tea cultivars suitable for manufacturing green, white, oolong, and black teas. The combined analysis revealed 115 differential metabolites and significant differences in the biosynthesis pathways for amino acids, phenylpropanoids, flavonoids, and terpenoids, and in the peroxidases abundances among these four groups. Green tea cultivars had higher abundances of amino acids and amino acids biosynthesis-related enzymes but lower abundances of flavanols and flavonoids biosynthesis-related enzymes. Black tea cultivars presented higher abundances of flavanols, flavanol-O-glycosides, flavonoids biosynthesis-related enzymes, and peroxidases. Oolong tea cultivars showed higher abundances of enzymes involved in terpenoids biosynthesis. Our study provides a novel interpretation of the manufacturing suitability of tea cultivars from the perspective of both metabolites and proteins and will be helpful for cultivar breeding.
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Affiliation(s)
- Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China; School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Zhen Sun
- School of Biological Engineering, Dalian Polytechnic University, Dalian 116034, Liaoning, PR China
| | - Jianjian Gao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Zhe Wang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China; School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Yanni Zhao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
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Sun Z, Chen D, Zhu L, Zhao Y, Lin Z, Li X, Dai W. A comprehensive study of the differences in protein expression and chemical constituents in tea leaves (Camellia sinensis var. sinensis) with different maturity using a combined proteomics and metabolomics method. Food Res Int 2022; 157:111397. [DOI: 10.1016/j.foodres.2022.111397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 11/04/2022]
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Zhou W, Jiang B, Yu L, Dai W. Measuring demand and supply of community care services for older people healthy ageing in rural Zhejiang Province. BMC Geriatr 2022; 22:286. [PMID: 35387605 PMCID: PMC8985291 DOI: 10.1186/s12877-022-02906-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Accepted: 02/23/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND A consequence of demographic trends and economic prosperous is the increasing diversity in needs for care services. However, the traditional family support for older people has been largely supplanted by the wider provision of community care services. This study aims to investigate the current status of demand and supply in community care services across different villages of Zhejiang province and assess service effectiveness for healthy ageing. METHODS A questionnaire survey was carried out towards 207 rural villages across 9 cities in Zhejiang province. One hundred eighty-six valid responses were received, representing a response rate of around 89.9%. Descriptive statistics were employed to identify older villagers' care needs and available community services. Comparative analysis examined the balance between the demand and supply of community care services. Correlation analysis were applied to determine key factors that impacted the supply of social services in rural communities. RESULTS The research found that rural older residents normally lived with their children or spouse with limited literacy and income. On average the categories of community care services is substantially small in comparison with the increasingly diverse demands of older people in rural areas. There was an obvious mismatch between service demand and service supply in rural communities, which often caused the waste of public resources. Moving forward, the uppermost priority is given to infrastructure construction service and daily life service, while little attention is paid to mental health service and specialized nursing service. CONCLUSION There needs to be an improvement in the socio-economic capacity of rural communities and in the diversity of social care services. Policies and strategies are also needed to encourage private sectors' involvement in providing care services for rural older people. Local government should have a clear vision of the potential demands for community care services, practical guidelines will be useful in guaranteeing better service quality.
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Affiliation(s)
- Wusi Zhou
- School of Public Administration, Hangzhou Normal University, Hangzhou, 311121, China
| | - Biya Jiang
- School of Public Administration, Hangzhou Normal University, Hangzhou, 311121, China
| | - Liujun Yu
- School of Public Administration, Hangzhou Normal University, Hangzhou, 311121, China
| | - Weidong Dai
- School of Public Administration, Zhejiang University of Finance and Economics, 310018, Hangzhou, China. .,China Institute of Regulation Research, ZUFE, 310018, Hangzhou, China.
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Wu W, Lu M, Peng J, Lv H, Shi J, Zhang S, Liu Z, Duan J, Chen D, Dai W, Lin Z. Nontargeted and targeted metabolomics analysis provides novel insight into nonvolatile metabolites in Jianghua Kucha tea germplasm ( Camellia sinensis var. Assamica cv. Jianghua). Food Chem X 2022; 13:100270. [PMID: 35499018 PMCID: PMC9040034 DOI: 10.1016/j.fochx.2022.100270] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Revised: 01/27/2022] [Accepted: 02/22/2022] [Indexed: 01/01/2023] Open
Abstract
Jianghua Kucha (JHKC) is a special tea germplasm with high bitterness growing in China; however, the chemical characteristics of JHKC are not completely understood. In this study, 61 differential metabolites were identified between 11 wild JHKC individuals and 3 control cultivars of Fudingdabai, Yunkang 10, and Zhuyeqi using comprehensive nontargeted and targeted metabolomics approach. The JHKC accessions mainly possessed significantly higher levels of purine alkaloids of theacrine (12.06 ± 5.23 mg/g) and 1,3,7-trimethyluric acid, non-epi-form flavanols (catechin, gallocatechin, catechin gallate, and gallocatechin gallate), and methylated flavanols of epigallocatechin-3-O-(3″-O-methyl)-gallate (4.79 ± 1.45 mg/g) and epicatechin-3-O-(3″-O-methyl)-gallate (1.02 ± 0.34 mg/g), as well as significantly lower levels of flavonol glycosides, which indicated that caffeine metabolism, flavonoid biosynthesis, and flavonol and flavone biosynthesis are mostly differential metabolic pathways. Our study demonstrated that JHKC germplasm is a promising resource for breeding novel tea cultivars with high contents of theacrine, non-epi-form flavanols, and methylated flavanols.
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Affiliation(s)
- Wenliang Wu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China.,Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, PR China
| | - Meiling Lu
- Agilent Technologies (China) Limited, 3 Wangjing North Road, Chaoyang District, Beijing 100102, PR China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
| | - Haipeng Lv
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
| | - Jiang Shi
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
| | - Shuguang Zhang
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, PR China
| | - Zhen Liu
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, PR China
| | - Jihua Duan
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, PR China
| | - Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, 9 Meiling South Road, Hangzhou, Zhejiang 310008, PR China
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Luo B, Ma F, Liu H, Hu J, Rao L, Liu C, Jiang Y, Kuangzeng S, Lin X, Wang C, Lei Y, Si Z, Chen G, Zhou N, Liang C, Jiang F, Liu F, Dai W, Liu W, Gao Y, Li Z, Li X, Zhou G, Li B, Zhang Z, Nian W, Luo L, Liu X. Cell-free DNA methylation markers for differential diagnosis of hepatocellular carcinoma. BMC Med 2022; 20:8. [PMID: 35027051 PMCID: PMC8759185 DOI: 10.1186/s12916-021-02201-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 11/24/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Aberrant DNA methylation may offer opportunities in revolutionizing cancer screening and diagnosis. We sought to identify a non-invasive DNA methylation-based screening approach using cell-free DNA (cfDNA) for early detection of hepatocellular carcinoma (HCC). METHODS Differentially, DNA methylation blocks were determined by comparing methylation profiles of biopsy-proven HCC, liver cirrhosis, and normal tissue samples with high throughput DNA bisulfite sequencing. A multi-layer HCC screening model was subsequently constructed based on tissue-derived differentially methylated blocks (DMBs). This model was tested in a cohort consisting of 120 HCC, 92 liver cirrhotic, and 290 healthy plasma samples including 65 hepatitis B surface antigen-seropositive (HBsAg+) samples, independently validated in a cohort consisting of 67 HCC, 111 liver cirrhotic, and 242 healthy plasma samples including 56 HBsAg+ samples. RESULTS Based on methylation profiling of tissue samples, 2321 DMBs were identified, which were subsequently used to construct a cfDNA-based HCC screening model, achieved a sensitivity of 86% and specificity of 98% in the training cohort and a sensitivity of 84% and specificity of 96% in the independent validation cohort. This model obtained a sensitivity of 76% in 37 early-stage HCC (Barcelona clinical liver cancer [BCLC] stage 0-A) patients. The screening model can effectively discriminate HCC patients from non-HCC controls, including liver cirrhotic patients, asymptomatic HBsAg+ and healthy individuals, achieving an AUC of 0.957(95% CI 0.939-0.975), whereas serum α-fetoprotein (AFP) only achieved an AUC of 0.803 (95% CI 0.758-0.847). Besides detecting patients with early-stage HCC from non-HCC controls, this model showed high capacity for distinguishing early-stage HCC from a high risk population (AUC=0.934; 95% CI 0.905-0.963), also significantly outperforming AFP. Furthermore, our model also showed superior performance in distinguishing HCC with normal AFP (< 20ng ml-1) from high risk population (AUC=0.93; 95% CI 0.892-0.969). CONCLUSIONS We have developed a sensitive blood-based non-invasive HCC screening model which can effectively distinguish early-stage HCC patients from high risk population and demonstrated its performance through an independent validation cohort. TRIAL REGISTRATION The study was approved by the ethic committee of The Second Xiangya Hospital of Central South University (KYLL2018072) and Chongqing University Cancer Hospital (2019167). The study is registered at ClinicalTrials.gov(# NCT04383353 ).
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Affiliation(s)
- Biyuan Luo
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Fang Ma
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Hao Liu
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Jixiong Hu
- Department of General Surgery, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Le Rao
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Chun Liu
- Department of Hepatopancreatobiliary Surgery, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Yongfang Jiang
- Department of Infectious Disease, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Shuyu Kuangzeng
- Department of Oncology, 331 Hospital of Zhuzhou, Zhuzhou, 412002, Hunan Province, China
| | - Xuan Lin
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Chenyang Wang
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Yiyu Lei
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Zhongzhou Si
- Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Guangshun Chen
- Center of Organ Transplantation, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Ning Zhou
- Department of Hepatobiliary Surgery, Hunan Provincial Hospital, Hunan Normal University, No. 61 Jiafang West Road, Changsha, Hunan Province, China
| | - Chengbai Liang
- Department of Gastroenterology, The Second Xiangya Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Fangqing Jiang
- Department of Infectious Disease, The First Hospital of Changsha, No. 311, Yingpan Road, Changsha, 410005, Hunan Province, China
| | - Fenge Liu
- Department of Infectious Disease, The First Hospital of Changsha, No. 311, Yingpan Road, Changsha, 410005, Hunan Province, China
| | - Weidong Dai
- Department of General Surgery, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Wei Liu
- Department of Hepatopancreatobiliary Surgery, The Second Xiangya Hospital, Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Yawen Gao
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China
| | - Zhihong Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, 410011, China
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Changsha, 410011, China
| | - Xi Li
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Guangyu Zhou
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Bingsi Li
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Zhihong Zhang
- Burning Rock Biotech, Guangzhou, 510300, Guangdong, China
| | - Weiqi Nian
- Chongqing University Cancer Hospital, No.181, Hangyu Road, Shapingba District, Chongqing, China
| | - Lihua Luo
- Department of Oncology, Central Hospital of Enshi Autonomous Prefecture, Enshi Clinical College of Wuhan University, Enshi, 445000, Hubei Province, People's Republic of China
| | - Xianling Liu
- Department of Oncology, The Second XiangYa Hospital of Central South University, 139 Renmin Middle Road, Changsha, 410011, Hunan Province, China.
- Hunan Key Laboratory of Tumor Models and Individualized Medicine, The Second Xiangya Hospital, Changsha, 410011, China.
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Peng J, Dai W, Lu M, Yan Y, Zhang Y, Chen D, Wu W, Gao J, Dong M, Lin Z. New insights into the influences of baking and storage on the nonvolatile compounds in oolong tea: A nontargeted and targeted metabolomics study. Food Chem 2021; 375:131872. [PMID: 34953237 DOI: 10.1016/j.foodchem.2021.131872] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/08/2021] [Accepted: 12/13/2021] [Indexed: 12/20/2022]
Abstract
A nontargeted and targeted metabolomics method was applied to comprehensively investigate the influences of baking and storage on chemical constituents in fresh-, strong-, and aged-scent types of Foshou oolong teas. The contents of N-ethyl-2-pyrrolidone-substituted flavanols (EPSFs), flavone C-glycosides, gallic acid, and most lipids increased after baking and storage, while the contents of cis-flavanols, alkaloids, flavonol O-glycosides, and most amino acids decreased. Degradation, epimerization, and interaction with theanine were main pathways for the decrease in cis-flavanols. Approximately 20.7%, 12.8%, and 11.6% of epigallocatechin gallate were degraded, epimerized, and interacted with theanine after baking, respectively; 22.5% and 8.71% of epigallocatechin gallate were degraded and interacted with theanine after 10-year storage, respectively. Simulated reactions confirmed that the increases in EPSFs and apigenin C-glycosides were caused by interactions between theanine and flavanols and between apigenin aglycone and glucose, respectively. This study offers novel insights into chemical changes during baking and storage of oolong tea.
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Affiliation(s)
- Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
| | - Meiling Lu
- Agilent Technologies (China) Limited, Beijing 100102, China
| | - Yongquan Yan
- Yongchun County Agricultural and Rural Bureau, Quanzhou, Fujian 362600, China
| | - Yue Zhang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Wenliang Wu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China
| | - Jianjian Gao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China; Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China
| | - Minghua Dong
- Yongchun County Agricultural and Rural Bureau, Quanzhou, Fujian 362600, China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, China.
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27
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Chen D, Zhao Y, Peng J, Zhang Y, Gao J, Wu W, Xie D, Hu Z, Lin Z, Dai W. Metabolomics Analysis Reveals Four Novel N-Ethyl-2-pyrrolidinone-Substituted Theaflavins as Storage-Related Marker Compounds in Black Tea. J Agric Food Chem 2021; 69:14037-14047. [PMID: 34780189 DOI: 10.1021/acs.jafc.1c05850] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Tea market is currently oversupplied, and unsold tea often needs to be properly stored for a period of time. However, the chemical changes occurring in black tea during storage are limitedly understood. In this study, a comprehensive nontargeted and targeted metabolomics approach was used to investigate the dynamic changes in compounds in time-series (0-19 months)-stored black teas. The contents of flavanols, theaflavins (TFs), theasinensins, procyanidins, most phenolic acids, amino acids, quercetin-O-glycosides, and myricetin-O-glycosides decreased during storage, while the contents of N-ethyl-2-pyrrolidinone-substituted flavanols, flavone-C-glycosides, and most kaempferol-O-glycosides increased. More importantly, four novel compounds strongly positively correlated with storage duration (r = 0.922-0.969) were structurally assigned as N-ethyl-2-pyrrolidinone-substituted TFs and validated with synthetic reactions of TFs and theanine standards. The content of N-ethyl-2-pyrrolidinone-substituted TFs was 51.54 μg/g in black tea stored for 19 months. To the best of our knowledge, N-ethyl-2-pyrrolidinone-substituted TFs were discovered in tea for the first time.
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Affiliation(s)
- Dan Chen
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Yanni Zhao
- School of Food and Biological Engineering, Shaanxi University of Science & Technology, Xi'an 710021, P. R. China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
| | - Yue Zhang
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
| | - Jianjian Gao
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
| | - Wenliang Wu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
- Tea Research Institute, Hunan Academy of Agricultural Sciences, Changsha, Hunan 410125, P. R. China
| | - Dongchao Xie
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
| | - Zhengyan Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, P. R. China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
| | - Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, P. R. China
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Liang S, Dai W, Wei Y. Uncertainty Learning for Noise Resistant Sketch-Based 3D Shape Retrieval. IEEE Trans Image Process 2021; 30:8632-8643. [PMID: 34648446 DOI: 10.1109/tip.2021.3118979] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Recently, sketch-based 3D shape retrieval has received growing attention in the community of computer graphics and computer vision. Most previous works focus on the problem of how to reduce the large cross-modality difference between 2D sketch and 3D shape data and make significant progress. Nevertheless, little attention has been paid to another important problem of how to deal with noise in the sketch data. For the first time, this work investigates the problem of noisy sketch data. It firstly provides qualitative and insightful analysis on the impact of noise, revealing that the noisy data are a key factor for unsatisfactory retrieval performance, as they cause severe over fitting and impair feature learning. Thus, the issue is worthy of serious treatment. Then, we propose to estimate sketch noise as data uncertainty, motivated by existing ideas that model data uncertainty with a distributional representation. We present methods with simple network structure and loss functions. They achieve strong results and establish new state-of-the-art on two benchmarks. Comprehensive experiment results, ablation studies, and insightful analysis validate the effectiveness of our methods, revealing that sketch feature learning with uncertainty is crucial for noise resistant sketch based 3D shape retrieval.
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Zhang Y, Dai W, Xu L, Ma L, Liang Z, Zhao C, Xu W, Chen W, Chen Z, Yang L, Kong F. P21.01 Selected ctDNA Panel Gene Sequencing for Neoantigen Discovery and Survival Prediction in Patients With Stage IV Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.08.353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Zhang R, Qi S, Dai W, Chen S, Zhang Y, Tian W, Yan W, Kong M, Tian J, Su D. Publication trends and hotspots in enhanced recovery after surgery: 20-year bibliometric analysis. Br J Surg 2021; 108:e62-e64. [PMID: 33711108 DOI: 10.1093/bjs/znaa076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Indexed: 12/20/2022]
Abstract
We evaluated enhanced recovery after surgery (ERAS) research and used bibliometric analysis to quantitatively and qualitatively predict research hotspots through extracting relevant publications from the core collection of the Web of Science database.
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Affiliation(s)
- R Zhang
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - S Qi
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - W Dai
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - S Chen
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - Y Zhang
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - W Tian
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - W Yan
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - M Kong
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - J Tian
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
| | - D Su
- Department of Anaesthesiology, Renji Hospital, Shanghai Jiao Tong University, School of Medicine, Shanghai, China
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Dai W, Liu H, Zhang P. [Hsa_circ_0006948 regulates the proliferation, migration and invasion in osteosarcoma by regulation of the expression of miR-490-3p target ATG7]. Zhonghua Zhong Liu Za Zhi 2021; 43:457-465. [PMID: 33902208 DOI: 10.3760/cma.j.cn112152-20200303-00164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of hsa_circ_0006948 (circ_0006948) on the proliferation, migration and invasion of osteosarcoma cells and the underlying mechanism. Methods: A total of 120 osteosarcoma tissues and 40 adjacent normal tissue samples were collected from patients admitted to the First People's Hospital of Shangqiu City from 2009 to 2015. Microarray analysis was performed to detect the differential expressions of circRNA in Saos-2 cell. The mRNA expressions of circ_0006948, microRNA (miR)-490-3p and autophagy-related protein 7 (ATG7) in osteosarcoma cells, NHOst cells, osteosarcoma tissues and adjacent tissues were detected by real-time quantitative reverse transcription polymerase chain reaction (RT-qPCR). Cell clone formation assay was used to detect cell proliferation ability, Transwell assay was used to detect cell invasion ability, and cell scratch assay was used to detect cell migration ability. The interactions between circ_0006948 and miR-490-3p, miR-490-3p and ATG7 were detected by dual luciferase reporter gene assay. The correlation between miR-490-3p and ATG7 was analyzed by TargetScan database, and the expression levels of Bcl-2 and Bax proteins in cells were detected by western blot. Results: The mRNA expression levels of circ_0006948, miR-490-3p and ATG7 in SAOS-2 cells were significantly different from NHOst cells (P<0.01). The mRNA expression levels of circ_0006948, miR-490-3p and ATG7 in osteosarcoma tissues were significantly different from adjacent tissues (P<0.01). The numbers of cell clone, migration and mobility in circ_0006948-siRNA group were (32.78±1.76), (37.58±1.82) and (36.93±1.45)%, respectively, lower than (65.72±1.45), (78.63±1.93) and (65.32±1.74)% in the siRNA NC group (all P<0.01). The numbers of cell clone, migration and mobility in the miR-490-3p mimics group were (20.08±1.54), (30.24±1.78) and (21.15±1.68)%, respectively, lower than (60.36±1.83), (76.93±1.64) and (40.56±1.27)% in the mimics NC group (all P<0.01). The numbers of cell clone, migration and mobility in the miR-490-3p inhibitor+ siRNA NC group were (90.34±1.72), (120.89±2.34) and (70.83±1.93)%, respectively, higher than (61.27±1.73), (75.82±1.82) and (42.38±1.74)% in the inhibitor NC+ siRNA NC group (P<0.01). The numbers of cell clone, migration and mobility in the circ_0006948 siRNA+ miR-490-3p inhibitor group were (58.74±1.98), (73.46±1.04) and (40.35±1.72)%, respectively, lower than (90.34±1.72), (120.89±2.34) and (70.83±1.93)% in the miR-490-3p inhibitor+ siRNA NC group (P<0.01). The numbers of cell clone, migration and mobility in the ATG7 siRNA group were (20.56±1.87), (40.36±1.76) and (20.96±1.73)%, lower than (65.46±1.74), (90.87±2.32) and (40.87±2.03)% in the siRNA NC group (P<0.01). The absorbance of miR-490-3p mimics+ pcDNA-ATG7 group was 0.54±0.11, higher than (0.36±0.08) of miR-490-3p mimics group (P<0.05). The expression levels of Bax and Bcl-2 protein in Saos-2 cells of miR-490-3p mimics group were significantly different from mimics NC group (P<0.01). The protein expression levels of Bax and Bcl-2 in Saos-2 cells of miR-490-3p mimics + pcDNA-ATG7 group were significantly different from miR-490-3p mimics group (P<0.01). Conclusion: Circ_0006948 regulates ATG7 expression through miR-490-3p, therefore regulates the proliferation, migration and invasion of osteosarcoma cells.
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Affiliation(s)
- W Dai
- Department of Joint Surgery, the First People's Hospital of Shangqiu City, Shangqiu 476000, China
| | - H Liu
- Department of General Medicine, the First People's Hospital of Shangqiu City, Shangqiu 476000, China
| | - P Zhang
- Department of Bone and Soft Tissue, Cancer Hospital Affiliated to Zhengzhou University, Zhengzhou 450008, China
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Dai W, Wu C, Shi Q, Li Q. P32.04 Preoperative Self-Reported Symptom Burden and Quality of Life of Patients Undergoing Lung Cancer Surgery: A Cross-Sectional Study. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Li Q, Chen M, Cao M, Yuan G, Hu X, Dai W, Zang M, Cheng X, Huang J, Hou J, Chen J. 182P Lenvatinib (LEN) plus anti-PD-1 antibodies vs LEN alone for advanced hepatocellular carcinoma (HCC): A real-world study. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.10.203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Dai W, Lou N, Xie D, Hu Z, Song H, Lu M, Shang D, Wu W, Peng J, Yin P, Lin Z. N-Ethyl-2-Pyrrolidinone-Substituted Flavan-3-Ols with Anti-inflammatory Activity in Lipopolysaccharide-Stimulated Macrophages Are Storage-Related Marker Compounds for Green Tea. J Agric Food Chem 2020; 68:12164-12172. [PMID: 33074673 DOI: 10.1021/acs.jafc.0c03952] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Fresh green tea (GT) is commonly considered to have better sensory flavor and higher commercial value than long-term-stored GT; however, the chemical variations during storage are unclear. In this study, the chemical profiles of stored GT were surveyed among time-series samples from 0 to 19 months using a nontargeted metabolomics method. Seven N-ethyl-2-pyrrolidinone-substituted flavan-3-ols (EPSFs) increased from 0.022 ± 0.019 to 3.212 ± 0.057 mg/g within 19 months (correlation coefficients with storage duration ranging from 0.936 to 0.965), and they were the most significantly increased compounds among the 127 identified compounds. Two representative EPSFs (R-EGCG-cThea and S-EGCG-cThea) possess potential anti-inflammatory properties by suppressing the expression, phosphorylation, and nuclear translocation of nuclear factor kappa-B (NF-κB) p65 in lipopolysaccharide-stimulated macrophages based on western blotting and immunofluorescence results. In conclusion, EPSFs were found to be marker compounds for stored GT and showed potential anti-inflammatory activity by regulating the NF-κB signaling pathway.
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Affiliation(s)
- Weidong Dai
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Ni Lou
- Clinical Laboratory of Integrative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
- College of Integrative Medicine, Dalian Medical University, Dalian, Liaoning 116044, People's Republic of China
| | - Dongchao Xie
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Zhengyan Hu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, Zhejiang 310051, People's Republic of China
| | - Huiyi Song
- Clinical Laboratory of Integrative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
- College of Integrative Medicine, Dalian Medical University, Dalian, Liaoning 116044, People's Republic of China
| | - Meiling Lu
- Agilent Technologies (China) Limited, Beijing 100102, People's Republic of China
| | - Dong Shang
- Clinical Laboratory of Integrative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
- College of Integrative Medicine, Dalian Medical University, Dalian, Liaoning 116044, People's Republic of China
| | - Wenliang Wu
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Jiakun Peng
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, People's Republic of China
| | - Peiyuan Yin
- Clinical Laboratory of Integrative Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, People's Republic of China
- College of Integrative Medicine, Dalian Medical University, Dalian, Liaoning 116044, People's Republic of China
| | - Zhi Lin
- Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou, Zhejiang 310008, People's Republic of China
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Pan Y, Dai W, Fang S. Cutaneous phaeohyphomycosis caused by Exserohilum rostratum: a case with unusual presentation. Clin Exp Dermatol 2020; 46:569-571. [PMID: 33020950 DOI: 10.1111/ced.14477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 09/23/2020] [Accepted: 09/29/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Y Pan
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - W Dai
- Department of Laboratory Medicine, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - S Fang
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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Hu T, Liu Y, Tan L, Huang J, Yu J, Wu Y, Pei Z, Zhang X, Li J, Song L, Dai W, Xiang Y. Value of serum collagen triple helix repeat containing-1(CTHRC1) and 14-3-3η protein compared to anti-CCP antibodies and anti-MCV antibodies in the diagnosis of rheumatoid arthritis. Br J Biomed Sci 2020; 78:67-71. [PMID: 32813981 DOI: 10.1080/09674845.2020.1810400] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
INTRODUCTION Serological markers are important in the diagnosis of rheumatoid arthritis (RA) and other connective tissues diseases This study explored the clinical value of collagen triple helix repeat containing-1 (CTHRC1) and 14-3-3η protein, compared to routine markers, in the diagnosis of RA. METHODS We recruited 103 RA patients, 105 non-RA patients (osteoarthritis, ankylosing spondylitis, systemic lupus erythematosus) and 59 healthy controls. CTHRC1, 14-3-3η, anti-cyclic citrullinated peptide antibody (anti-CCP), anti-mutated citrullinated vimentin antibody (anti-MCV), rheumatoid factor and erythrocyte sedimentation rate (ESR) levels were measured, and their diagnostic value for RA evaluated and compared. RESULTS All laboratory indices were elevated in RA (P < 0.05). Of these, anti-MCV had the highest sensitivity (86.4%) and anti-CCP the highest specificity (94.5%). The areas under the curve (AUC) of CTHRC1, 14-3-3η, anti-CCP, anti-MCV, rheumatoid factor and ESR were 0.84, 0.81, 0.89, 0.91, 0.85 and 0.77 respectively (all P < 0.01). Anti-CCP and anti-MCV were the most valuable in the diagnosis of RA. The combination of anti-CCP and anti-MCV had the maximum Youden index, followed by the combination of anti-CCP and 14-3-3η. Binary logistic regression analysis showed that 14-3-3η had the largest odds ratio value (95% CI) at 5.1 (2.1-12.5) for RA. CONCLUSION CTHRC1 and 14-3-3η are promising serological indicators of RA, and when combined with anti-CCP, anti-MCV and ESR, can improve the diagnosis of this disease.
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Affiliation(s)
- T Hu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - Y Liu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - L Tan
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - J Huang
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - J Yu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China
| | - Y Wu
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - Z Pei
- Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University , Nanchang, Jiangxi, China.,Jiangxi Province Key Laboratory of Laboratory Medicine , Nanchang, China
| | - X Zhang
- Second Affiliated Hospital of Nanchang University. Department of Clinical Laboratory, The Third Hospital of Nanchang City , Nanchang, Jiangxi Province, China
| | - J Li
- Gannan Health and Vocational College, Ganzhou, China
| | - L Song
- Department of Clinical Laboratory, The Ganzhou People's Hospital, Ganzhou, China
| | - W Dai
- Department of Clinical Laboratory, The Ganzhou People's Hospital, Ganzhou, China
| | - Y Xiang
- Department of Clinical Laboratory, the Yingtan People's Hospital, Yingtan, Jiangxi, China
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Dai W, Xie D, Lin Z, Yang C, Peng Q, Tan J, Lin Z. A nontargeted and targeted metabolomics study on the dynamic changes in metabolite levels during the anaerobic treatment of γ-aminobutyric acid (GABA) tea. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109313] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Wen L, Mu W, Lu H, Wang X, Fang J, Jia Y, Li Q, Wang D, Wen S, Guo J, Dai W, Ren X, Cui J, Zeng G, Gao J, Wang Z, Cheng B. Porphyromonas gingivalis Promotes Oral Squamous Cell Carcinoma Progression in an Immune Microenvironment. J Dent Res 2020; 99:666-675. [PMID: 32298192 DOI: 10.1177/0022034520909312] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Increasing evidence has revealed a significant association between microorganisms and oral squamous cell carcinoma (OSCC). Porphyromonas gingivalis, the keystone pathogen in chronic periodontitis, is considered an important potential etiologic agent of OSCC, but the underlying immune mechanisms through which P. gingivalis mediates tumor progression of the oral cancer remain poorly understood. Our cohort study showed that the localization of P. gingivalis in tumor tissues was related to poor survival of patients with OSCC. Moreover, P. gingivalis infection increased oral lesion multiplicity and size and promoted tumor progression in a 4-nitroquinoline-1 oxide (4NQO)–induced carcinogenesis mouse model by invading the oral lesions. In addition, CD11b+ myeloid cells and myeloid-derived suppressor cells (MDSCs) showed increased infiltration of oral lesions. Furthermore, in vitro observations showed that MDSCs accumulated when human-derived dysplastic oral keratinocytes (DOKs) were exposed to P. gingivalis, and CXCL2, CCL2, interleukin (IL)–6, and IL-8 may be potential candidate genes that facilitate the recruitment of MDSCs. Taken together, our findings suggest that P. gingivalis promotes tumor progression by generating a cancer-promoting microenvironment, indicating a close relationship among P. gingivalis, tumor progression of the oral cancer, and immune responses.
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Affiliation(s)
- L. Wen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - W. Mu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - H. Lu
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - X. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Fang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Y. Jia
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - Q. Li
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - D. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - S. Wen
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Guo
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - W. Dai
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - X. Ren
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - J. Cui
- State Key Laboratory of Oncology in South China, MOE Key Laboratory of Gene Function and Regulation, School of Life Sciences, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - G. Zeng
- Department of Microbiology, Zhongshan School of Medicine, Key Laboratory for Tropical Diseases Control of the Ministry of Education, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - J. Gao
- Discipline of Oral Bioscience, Sydney Dental School, Faculty of Medicine and Health, The University of Sydney, Westmead, NSW, Australia
| | - Z. Wang
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
| | - B. Cheng
- Hospital of Stomatology, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong, China
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Lu S, Dai W, Tang Y, Guo M. A review of the impact of hydropower reservoirs on global climate change. Sci Total Environ 2020; 711:134996. [PMID: 31818589 DOI: 10.1016/j.scitotenv.2019.134996] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 10/14/2019] [Accepted: 10/14/2019] [Indexed: 06/10/2023]
Abstract
Three types of greenhouse gases (GHGs), namely carbon dioxide, methane and nitrous oxide emitted from reservoirs have an important but often ignored impact on the climate change. Based on the literature, this paper presents a comprehensive assessment of the long-term impact of GHGs generated by hydropower reservoirs, the systems for monitoring and assessing reservoir GHGs, the mechanism for their generation and key factors involved. Using limnology theory as a basis, the biogeochemical cycle of carbon in the environment is understood to be the main mechanism for generating reservoir based GHG emissions. A summary of relevant research in South American tropical rain forests and the Canada's temperate zone, also shows the extent of current systematic analysis of GHG emission research. Proposals are made for more comprehensive data collection from a wider variety of sources and the key problems identified that need to be solved to provide a theoretical basis for future development policies and practice.
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Affiliation(s)
- Shibao Lu
- School of Public Administration, Zhejiang University of Finance and Economics, Hang Zhou 310018, China
| | - Weidong Dai
- School of Public Administration, Zhejiang University of Finance and Economics, Hang Zhou 310018, China.
| | - Yao Tang
- School of Public Administration, Zhejiang University of Finance and Economics, Hang Zhou 310018, China
| | - Min Guo
- School of Public Administration, Zhejiang University of Finance and Economics, Hang Zhou 310018, China
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Xu Y, Ma Y, Cai W, Mu X, Dai W, Wang W, Hu L, Li X, Han J, Wang H, Song YP, Yang ZB, Zheng SB, Sun L. Demonstration of Controlled-Phase Gates between Two Error-Correctable Photonic Qubits. Phys Rev Lett 2020; 124:120501. [PMID: 32281851 DOI: 10.1103/physrevlett.124.120501] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 10/09/2019] [Accepted: 02/28/2020] [Indexed: 06/11/2023]
Abstract
To realize fault-tolerant quantum computing, it is necessary to store quantum information in logical qubits with error correction functions, realized by distributing a logical state among multiple physical qubits or by encoding it in the Hilbert space of a high-dimensional system. Quantum gate operations between these error-correctable logical qubits, which are essential for implementation of any practical quantum computational task, have not been experimentally demonstrated yet. Here we demonstrate a geometric method for realizing controlled-phase gates between two logical qubits encoded in photonic fields stored in cavities. The gates are realized by dispersively coupling an ancillary superconducting qubit to these cavities and driving it to make a cyclic evolution depending on the joint photonic state of the cavities, which produces a conditional geometric phase. We first realize phase gates for photonic qubits with the logical basis states encoded in two quasiorthogonal coherent states, which have important implications for continuous-variable-based quantum computation. Then we use this geometric method to implement a controlled-phase gate between two binomially encoded logical qubits, which have an error-correctable function.
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Affiliation(s)
- Y Xu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y Ma
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Cai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Mu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Dai
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - W Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - L Hu
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - X Li
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - J Han
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - H Wang
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Y P Song
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
| | - Zhen-Biao Yang
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - Shi-Biao Zheng
- Fujian Key Laboratory of Quantum Information and Quantum Optics, College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
| | - L Sun
- Center for Quantum Information, Institute for Interdisciplinary Information Sciences, Tsinghua University, Beijing 100084, China
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Peng X, Yang C, Kong X, Xiang Y, Dai W, Quan H. Multifunctional nanocomposites MGO/FU-MI inhibit the proliferation of tumor cells and enhance the effect of chemoradiotherapy in vivo and in vitro. Clin Transl Oncol 2020; 22:1875-1884. [PMID: 32170638 DOI: 10.1007/s12094-020-02331-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2019] [Accepted: 02/25/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE The limitation of surgery, radiotherapy and chemotherapy in the treatment of cancer and the rise of the application of nanomaterials in the field of biomedicine have promoted the application of various nanomaterials in the combination of radiotherapy and chemotherapy in the treatment of cancer. To improve the efficiency of cancer treatment, the multifunctional nanocomposites MGO/FU-MI (MGO/FU-MI NCs) were used for combination chemotherapy and radiotherapy to verify its effectiveness in treating tumors. METHODS The proliferation activity of MGO/FU-MI NCs on MC-38 and B16 cells was detected by CCK-8, and the level of apoptosis and reactive oxygen species were detected by flow cytometry. To verify its efficacy in the combination of chemoradiotherapy, different treatment regimens were developed for several groups of tumor-bearing mice. RESULTS The MGO/FU-MI NCs can induce apoptosis, stimulate ROS production, and inhibit cell proliferation. In vivo experiments, when MGO/FU-MI NCs are used alone for chemotherapy, have a certain therapeutic effect on mouse tumors. When MGO/FU-MI NCs are combined with radiation, the tumor volume can be significantly reduced and the survival time of mice is significantly prolonged. CONCLUSION The MGO/FU-MI NCs are very effective in the treatment of tumors when combined with radiotherapy and chemotherapy, and have the potential to be a combination of radiotherapy and chemotherapy.
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Affiliation(s)
- X Peng
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - C Yang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China.,Department of Oncology, Shanghai Medical College, Fudan University, Shanghai, China
| | - X Kong
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - Y Xiang
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - W Dai
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China
| | - H Quan
- Key Laboratory of Artificial Micro-Structures of the Ministry of Education and Center for Electronic Microscopy and Department of Physics, Wuhan University, Wuhan, Hubei, China.
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42
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Jiang TT, Shi L, Li W, Zhang JF, He J, Wang XY, Liu L, Feng Y, Wang L, Xie YQ, Wang ZJ, Zhu T, Jiang T, Sun JP, Dai W, Xu DC, Yang K. [Spatio-temporal distribution of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:10-14. [PMID: 32185922 DOI: 10.16250/j.32.1374.2019307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To explore the spatio-temporal characteristics of Oncomelania hupensis snails along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, so as to provide scientific evidence for the dynamic assessment of the risk of snail spread in this region. METHODS O. hupensis snail status was collected in the plain regions with waterway networks in the study area from 2012 to 2017. The spatio-temporal variations of snail distribution were investigated along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal using buffer zone analysis, spatial autocorrelation, hotspot analysis and standard deviational ellipse with the geographical information system (GIS) tools. RESULTS The number of snail habitats showed a tendency towards a rise in the study area from 2012 to 2017, and snail habitats were predominantly distributed in the 1 000 m long buffer zone of the Danyang-Jintan-Liyang Canal, notably along the Jiuqu River at the junction between the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal. The distribution of snail habitats appeared spatial autocorrelations in 2014, 2016 and 2017, and the hotspot areas were mainly identified at the junction between the Danyang-Jintan-Liyang Canal and the Beijing-Hangzhou Grand Canal. In addition, the overall distribution of snail habitats was located in the northeastern-southwestern part of the study aera, and gradually shifted to the southern and northern parts with the time. CONCLUSIONS The spatial distribution of O. hupensis snails is complex along the Danyang section of the Beijing-Hangzhou Grand Canal and the Danyang-Jintan-Liyang Canal, and there is a risk of snail spread from the upper reaches to the lower reaches, where snail control needs to be intensified.
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Affiliation(s)
- T T Jiang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China
| | - L Shi
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China.,Co-first author
| | - W Li
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - J F Zhang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - J He
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - X Y Wang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - L Liu
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - Y Feng
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
| | - L Wang
- Zhenjiang Center for Disease Control and Prevention, Jiangsu Province, China
| | - Y Q Xie
- Chang-zhou Center for Disease Control and Prevention, Jiangsu Province, China
| | - Z J Wang
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - T Zhu
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - T Jiang
- Danyang Center for Disease Control and Prevention, Jiangsu Province, China
| | - J P Sun
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - W Dai
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - D C Xu
- Jintan Center for Disease Control and Prevention, Changzhou City, Jiangsu Province, China
| | - K Yang
- Key Laboratory of National Health Commission on Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi 214064, China.,Public Health Research Center, Jiangnan University, China
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Dai W, Liu H, Liu Y, Xu X, Qian D, Luo S, Cho E, Zhu D, Amos CI, Fang S, Lee JE, Li X, Nan H, Li C, Wei Q. Genetic variants in the folate metabolic pathway genes predict cutaneous melanoma-specific survival. Br J Dermatol 2020; 183:719-728. [PMID: 31955403 DOI: 10.1111/bjd.18878] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/13/2020] [Indexed: 01/05/2023]
Abstract
BACKGROUND Folate metabolism plays an important role in DNA methylation and nucleic acid synthesis and thus may function as a regulatory factor in cancer development. Genome-wide association studies (GWASs) have identified some single-nucleotide polymorphisms (SNPs) associated with cutaneous melanoma-specific survival (CMSS), but no SNPs were found in genes involved in the folate metabolic pathway. OBJECTIVES To examine associations between SNPs in folate metabolic pathway genes and CMSS. METHODS We comprehensively evaluated 2645 (422 genotyped and 2223 imputed) common SNPs in folate metabolic pathway genes from a published GWAS of 858 patients from The University of Texas MD Anderson Cancer Center and performed the validation in another GWAS of 409 patients from the Nurses' Health Study and Health Professionals Follow-up Study, in which 95/858 (11·1%) and 48/409 (11·7%) patients died of cutaneous melanoma, respectively. RESULTS We identified two independent SNPs (MTHFD1 rs1950902 G>A and ALPL rs10917006 C>T) to be associated with CMSS in both datasets, and their meta-analysis yielded an allelic hazards ratio of 1·75 (95% confidence interval 1·32-2·32, P = 9·96 × 10-5 ) and 2·05 (1·39-3·01, P = 2·84 × 10-4 ), respectively. The genotype-phenotype correlation analyses provided additional support for the biological plausibility of these two variants' roles in tumour progression, suggesting that variation in SNP-related mRNA expression levels is likely to be the mechanism underlying the observed associations with CMSS. CONCLUSIONS Two possibly functional genetic variants, MTHFD1 rs1950902 and ALPL rs10917006, were likely to be independently or jointly associated with CMSS, which may add to personalized treatment in the future, once further validated. What is already known about this topic? Existing data show that survival rates vary among patients with melanoma with similar clinical characteristics; therefore, it is necessary to identify additional complementary biomarkers for melanoma-specific prognosis. A hypothesis-driven approach, by pooling the effects of single-nucleotide polymorphisms (SNPs) in a specific biological pathway as genetic risk scores, may provide a prognostic utility, and genetic variants of genes in folate metabolism have been reported to be associated with cancer risk. What does this study add? Two genetic variants in the folate metabolic pathway genes, MTHFD1 rs1950902 and ALPL rs10917006, are significantly associated with cutaneous melanoma-specific survival (CMSS). What is the translational message? The identification of genetic variants will make a risk-prediction model possible for CMSS. The SNPs in the folate metabolic pathway genes, once validated in larger studies, may be useful in the personalized management and treatment of patients with cutaneous melanoma.
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Affiliation(s)
- W Dai
- Department of Dermatology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong, 510515, China.,Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - H Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - Y Liu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - X Xu
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - D Qian
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA
| | - S Luo
- Department of Biostatistics and Bioinformatics, Duke University Medical Center, Durham, NC, 27710, USA
| | - E Cho
- Department of Dermatology, Warren Alpert Medical School, Brown University, Providence, RI, 02912, USA.,Department of Epidemiology, Brown University School of Public Health, Providence, RI, 02912, USA.,Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA
| | - D Zhu
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - C I Amos
- Institute for Clinical and Translational Research, Baylor College of Medicine, Houston, TX, 77030, USA
| | - S Fang
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - J E Lee
- Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, TX, 77030, USA
| | - X Li
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - H Nan
- Channing Division of Network Medicine, Department of Medicine, Brigham and Women's Hospital, Boston, MA, 02115, USA.,Department of Epidemiology, Fairbanks School of Public Health, Indiana University, Indianapolis, IN, 46202, USA
| | - C Li
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xi'an, Shaanxi, 710032, China
| | - Q Wei
- Duke Cancer Institute, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Medicine, Duke University Medical Center, Durham, NC, 27710, USA.,Department of Population Health Sciences, Duke University School of Medicine, Durham, NC, 27710, USA
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Xie D, Dai W, Lu M, Tan J, Zhang Y, Chen M, Lin Z. Nontargeted metabolomics predicts the storage duration of white teas with 8-C N-ethyl-2-pyrrolidinone-substituted flavan-3-ols as marker compounds. Food Res Int 2019; 125:108635. [DOI: 10.1016/j.foodres.2019.108635] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 01/14/2023]
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Dai W, Wei X, Xie S, He J, Shi Q, Li Q. P2.16-35 Factors Associated with Prolonged Postoperative Hospital Stay in Patients Undergoing Lung Cancer Surgery. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Dai W, Xie S, Wei X, Zhang Y, Feng W, Mu Y, Zhang R, Liao X, Wu C, Zhou H, Yang X, Shi Q, Li Q. P2.16-04 Single-Port Video-Assisted Thoracoscopic Surgery Reduces Patient-Reported Symptom Burden in Patients Undergoing Lung Resection. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Gu XF, Chen HJ, Chen XM, Xu TT, Qiu ZW, Wu LQ, Dai W, Ying SM, Dai YR. [Expression of RAGE in asthmatic rats and the intervention of Roxithromycin]. Zhonghua Yi Xue Za Zhi 2019; 99:2542-2546. [PMID: 31484284 DOI: 10.3760/cma.j.issn.0376-2491.2019.32.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the expression of the Receptor of Advanced glycation end products (RAGE) in asthmatic rats, and explore the intervention of Roxithromycin. Methods: A total of 18 Specific Pathogen Free-class Brown Norway male rats were randomly divided into control group, asthma model group and Roxithromycin group, with 6 rats in each group. The asthmatic model was sensitized by intraperitoneal injection of Ovalbumin (OVA)+Al(OH)(3), and challenged with OVA. Rats in Roxithromycin group were given Roxithromycin 30 mg/kg 30 minutes before each challenge. Rats in control group and asthma model group were treated with equal volume of saline. The concentrations of RAGE and interleukin (IL)-4 in serum and bronchoalveolar lavage fluid (BALF) were measured by enzyme-linked immunosorbent (ELISA); the pathological changes of lung tissues were observed by HE-staining; the thickness of airway wall and airway smooth muscle were measured by Image-Pro Plus; the relative expression of RAGE in lung tissues were detected by Western blot. Results: In asthma model group, the concentrations of RAGE and IL-4 in the serum and BALF were obviously higher than those in control group [(494±32) vs (327±45) ng/L; (32.4±5.8) vs (13.1±2.9) ng/L; (553±38) vs (399±56) ng/L; (37.8±3.4) vs (19.4±2.5) ng/L] (all P<0.01); in Roxithromycin group, the concentrations of RAGE and IL-4 in the serum and BALF were obviously lower than those in asthma model group [(438±18) vs (494±32) ng/L; (22.8±6.0) vs (32.4±5.8) ng/L; (444±42) vs (553±38) ng/L; (25.6±4.5) vs (37.8±3.4) ng/L] (all P<0.05). In asthma model group, the bronchial wall was thickened, the lumen was narrow, the mucosal wrinkles were significantly increased, edema appeared under the mucosa, and a large number of inflammatory cells infiltrated and aggregated in the bronchi, perivascular and alveolar spaces; the thickness of airway wall and airway smooth muscle were significantly increased than those in control group (P<0.01); in Roxithromycin group, airway inflammation and remodeling were alleviated compared with those in asthma model group (P<0.05). In asthma model group, the expression of RAGE in lung tissues were significantly increased than those in control group (P<0.01); in Roxithromycin group, the expression of RAGE were significantly decreased than those in asthma model group (P<0.01). There were positive correlations between the expression of RAGE and IL-4 in BALF and serum (r=0.782, 0.804, all P<0.01); there were positive correlations between RAGE and total white cell counts, eosinophil counts, smooth muscle thickness (r=0.897, 0.927, 0.860, all P<0.01). Conclusions: The increasing of RAGE in asthmatic rats are positively correlated with airway inflammation and airway remodeling. Roxithromycin may inhibit the development of asthma by reducing the expression of RAGE.
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Affiliation(s)
- X F Gu
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - H J Chen
- Department of Respiratory Medicine, Jinhua Municipal Central Hospital, Jinhua 321000, China
| | - X M Chen
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - T T Xu
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Z W Qiu
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - L Q Wu
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - W Dai
- Department of Neurology Rehabilitation, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - S M Ying
- Department of Respiratory and Critical Care Medicine, the Second Affiliated Hospital of Zhejiang University, Hangzhou 310058, China
| | - Y R Dai
- Department of Respiratory Medicine, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
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P. Wu W, C. Liu W, W. Qiu S, Q. Ma A, Dai W, Qian Y, Kumar A. Application of a water stable zinc(II) glutamate metal organic framework for photocatalytic degradation of organic dyes. B CHEM SOC ETHIOPIA 2019. [DOI: 10.4314/bcse.v33i1.4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Zheng F, Tang D, Xu H, Xu Y, Dai W, Zhang X, Hong X, Liu D, Dai Y. Genomewide analysis of 6-methyladenine DNA in peripheral blood mononuclear cells of systemic lupus erythematosus. Lupus 2019; 28:359-364. [PMID: 30744524 DOI: 10.1177/0961203319828520] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Aim The aim of this paper is to explore the expression of 6-methyladenine (6mA) DNA and to elucidate its gene regulation role in systemic lupus erythematosus (SLE). Methods Twenty SLE patients and 20 normal control healthy individuals (HCs) were included in this study. Genomic DNA was isolated from peripheral blood mononuclear cells and subsequently underwent 6mA-immunoprecipitation-sequencing (6mA-IP-Seq) after DNA quality control and 6mA precipitation. Bioinformation analysis was applied to the raw data comparing 6mA levels between SLE patients and HCs. Results We identified 5462 hypermethylation and 431 hypomethylation genes in PBMCs of individuals with SLE, which indicated that a high level of 6mA participates in the pathogenesis of SLE. Gene ontology analysis revealed that hypermethylation genes might regulate the inflammatory process, which has been well documented in the pathogenesis of SLE. Conclusion 6mA may be involved in the initial development of SLE, which may lead to its potential use as an early diagnostic marker and therapeutic target.
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Affiliation(s)
- F Zheng
- Department of Nephrology, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
- Clinical Medical Research Center, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - D Tang
- Clinical Medical Research Center, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - H Xu
- Department of Nephrology, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Y Xu
- Clinical Medical Research Center, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - W Dai
- College of Natural Science, University of Texas at Austin, Austin, Texas, USA
| | - X Zhang
- Department of Nephrology, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - X Hong
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - D Liu
- Department of Rheumatology and Immunology, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
| | - Y Dai
- Clinical Medical Research Center, The Second Clinical Medical College, Shenzhen People's Hospital, Jinan University, Shenzhen, Guangdong, China
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Chen Q, Zhu Y, Dai W, Lv H, Mu B, Li P, Tan J, Ni D, Lin Z. Aroma formation and dynamic changes during white tea processing. Food Chem 2019; 274:915-924. [DOI: 10.1016/j.foodchem.2018.09.072] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/22/2018] [Accepted: 09/11/2018] [Indexed: 10/28/2022]
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