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Zhang S, Deng M, Zhang R, Jia X, Huang F, Zhao D, Dong L, Chi J, Sun Z, Ma Q, Zhang M. Modulation effect of black rice dietary fiber on the metabolism and fermentation of cyanidin-3-glucoside in an in vitro human colonic model. Food Funct 2023. [PMID: 37404037 DOI: 10.1039/d3fo00955f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/06/2023]
Abstract
Black rice (Oryza sativa L.) is a great source of anthocyanins and dietary fiber and possesses various health-promoting properties. The modulating effect of insoluble dietary fiber (IDF) from black rice on the fermentation of cyanidin-3-O-glucoside (Cy3G) in an in vitro human colonic model, together with the possible microbiota-mediated mechanisms, was investigated. The combined Cy3G and IDF fermentation can promote the biotransformation of Cy3G into phenolic compounds such as cyanidin and protocatechuic acid with stronger antioxidant activities and increase the total production of SCFAs during the fermentation of Cy3G. 16S rRNA sequencing analysis revealed that the addition of IDF modulated the microbiota structure and bloomed Bacteroidota and Prevotellaceae-related genera, which were positively correlated with metabolites of Cy3G, thus potentially regulating the microbial metabolism of Cy3G. The work is of great significance for elucidating the material basis of the health benefits of black rice.
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Affiliation(s)
- Shuai Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Mei Deng
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Dong Zhao
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Zhida Sun
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qin Ma
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture /Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
- Food Laboratory of Zhongyuan, Luohe 462300, Henan, China
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Deng M, Zhang R, Zhang S, Lu Q, Dong L, Huang F, Jia X, Ma Q, Chi J, Zhao D, Yan S, Zhang M. The flavonoid profiles in different tissue parts of Shatianyu (Citrus grandis L. Osbeck) and their in vitro bioactivity. Lebensm Wiss Technol 2023. [DOI: 10.1016/j.lwt.2023.114712] [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: 03/30/2023]
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3
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Jia X, Dong L, Wen Y, Huang F, Chi J, Zhang R. Discovery of possible hepatoprotective components from lychee pulp phenolic extract by online knockout methods. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102053] [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: 10/14/2022]
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Deng M, Zhang S, Dong L, Huang F, Jia X, Su D, Chi J, Muhammad Z, Ma Q, Zhao D, Zhang M, Zhang R. Shatianyu ( Citrus grandis L. Osbeck) Flavonoids and Dietary Fiber in Combination Are More Effective Than Individually in Alleviating High-Fat-Diet-Induced Hyperlipidemia in Mice by Altering Gut Microbiota. J Agric Food Chem 2022; 70:14654-14664. [PMID: 36322531 DOI: 10.1021/acs.jafc.2c03797] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
This study was aimed at exploring the separate and combined anti-hyperlipidemic effect of Shatianyu (Citrus grandis L. Osbeck) flavonoids (SPFEs) and DF (SPDF) on HFD-fed mice after 14-week administration in diet, together with the possible microbiota-mediated mechanisms. SPFEs and SPDF were more effective together than separately in improving serum lipid profiles, decreasing hepatic lipid accumulation, and upregulating the expression of hepatic CPT1a, CYP7A1, ABCG5, and ABCG8. Butyrate has been previously proved to have an anti-hyperlipidemic effect. The fecal butyrate contents were negatively correlative with serum/liver lipid but positively correlated with fecal total bile acids levels, and SPDF + SPFEs had the most fecal butyrate in this study. SPDF or SPFEs enriched microbiota related to acetic and propionic acids production, while SPDF + SPFEs also bloomed norank_f_Muribaculaceae, Dubosiella, Lachnoclostridium, and norank_f_Eubacterium_coprostanoligenes_group, which were positively correlated to fecal butyrate contents. Thus, SPFEs and SPDF might alleviate hyperlipidemia synergistically by regulating microbiota to produce butyrate, thereby regulating lipid metabolism.
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Affiliation(s)
- Mei Deng
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Shuai Zhang
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
- Department of Food Science and Technology, Huazhong Agricultural University, Wuhan430070, P. R. China
| | - Lihong Dong
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Fei Huang
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Xuchao Jia
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Dongxiao Su
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou510006, P. R. China
| | - Jianwei Chi
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Zafarullah Muhammad
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Qin Ma
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Dong Zhao
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Mingwei Zhang
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
| | - Ruifen Zhang
- Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong, Key Laboratory of Agricultural Products Processing, Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural, Guangzhou510610, P. R. China
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5
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Deng M, Dong L, Jia X, Huang F, Chi J, Muhammad Z, Ma Q, Zhao D, Zhang M, Zhang R. The flavonoid profiles in the pulp of different pomelo (Citrus grandis L. Osbeck) and grapefruit (Citrus paradisi Mcfad) cultivars and their in vitro bioactivity. Food Chem X 2022; 15:100368. [PMID: 36211772 PMCID: PMC9532706 DOI: 10.1016/j.fochx.2022.100368] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Revised: 05/23/2022] [Accepted: 06/12/2022] [Indexed: 12/05/2022] Open
Abstract
Fourteen flavonoid compounds were detected in pomelo and grapefruit pulp. The flavonoid profiles in pomelo and grapefruit pulp had varietal difference. Flavonoids of pomelo and grapefruit showed strong cellular antioxidant activity. Flavonoids of pomelo and grapefruit are good inhibitors of pancreatic lipase.
Previous results indicated that the flavonoid profiles might have varietal differences in pomelo, but detailed information is unknown. We previously isolated 4 new flavonoids, cigranoside C, D, E, F, in Citrus grandis Shatianyu pulp. However, their distribution in different pomelo cultivars remains to be explored. Therefore, the flavonoid profiles and in vitro bioactivity of the pulp from 5 pomelo and 1 grapefruit cultivars commonly consumed in China were investigated. Fourteen flavonoids were identified, cigranoside C, D, E were detected in these pomelo and grapefruit. Naringin and cigranoside C were the major flavonoids in grapefruit, Guanximiyu-W, Guanximiyu-R and Liangpingyu, while melitidin and rhoifolin was the predominant flavonoid in Shatianyu and Yuhuanyu, respectively. Pomelo and grapefruit showed strong antioxidant activity, and were potent inhibitors of pancreatic lipase with IC50 values of 11.4–72.6 mg fruit/mL except Shatianyu. Thus, pomelo and grapefruit are natural antioxidants and possess anti-obesity potential.
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Zhao J, Zheng X, Gao M, Chi J, Wei S, Yun X. Video-assisted superior mediastinal lymphadenectomy for papillary thyroid cancer: a case report. Ann R Coll Surg Engl 2022; 104:e227-e231. [PMID: 35713097 PMCID: PMC9433169 DOI: 10.1308/rcsann.2021.0104] [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] [Accepted: 08/10/2020] [Indexed: 09/03/2023] Open
Abstract
Superior mediastinal lymph node metastases in papillary thyroid cancer are uncommon. The clinical characteristics and surgical strategy of superior mediastinal lymph node metastases remain unclear. Superior mediastinal lymphadenectomy can be accomplished either by a transcervical or transsternal approach. Transsternal approach for superior mediastinal lymphadenectomy can cause great damage; transcervical approach sometimes results in inadequate exposure. Here we report our experience of a papillary thyroid cancer patient with superior mediastinal lymph node metastases who underwent video-assisted superior mediastinal lymphadenectomy. A 49-year-old woman diagnosed with papillary thyroid cancer in left thyroid underwent unilateral lobectomy and ipsilateral central and lateral node dissection in the local hospital 4 years ago. Currently lymph node metastases were found in mediastinum and the right neck, some of which were adjacent to the right innominate vein. Unilateral lobectomy, ipsilateral central and lateral node dissection, and video-assisted superior mediastinal lymphadenectomy were successfully performed by transcervical approach. Subsequently, the patient received thyroxine suppression therapy and adjuvant radioiodine treatment. Video-assisted superior mediastinal lymphadenectomy, providing adequate exposure for a complete superior mediastinal lymphadenectomy, is proved to be safe and feasible.
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Affiliation(s)
- J Zhao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
| | - X Zheng
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
| | - M Gao
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
| | - J Chi
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
| | - S Wei
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
| | - X Yun
- Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Cancer Prevention and Therapy, Tianjin, Tianjin’s Clinical Research Center for Cancer, Tianjin, P. R. China
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7
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Nanes B, Azarova E, Bhatt K, Chi J, Isogai T, Dean K, Danuser G. 423 Keratin diversity modulates cytoskeletal dynamics and force generation during epidermal remodeling. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.432] [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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8
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Zhao G, Zhang R, Dong L, Liu L, Huang F, Jia X, Deng M, Chi J, Ma Y, Chen Y, Ma Q, Zhang M. Bound phenolics in rice bran dietary fibre released by different chemical hydrolysis methods: content, composition and antioxidant activities. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.15915] [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: 11/29/2022]
Affiliation(s)
- Guanghe Zhao
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
- Life Sciences of College Guangxi Normal University Guilin 541006 China
| | - Ruifen Zhang
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Lihong Dong
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Lei Liu
- School of Biotechnology and Health Sciences Wuyi University Jiangmen 529020 China
| | - Fei Huang
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Xuchao Jia
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Mei Deng
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Jianwei Chi
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Yongxuan Ma
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Yanxia Chen
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Qin Ma
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
| | - Mingwei Zhang
- Sericultural & Agri‐Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing Guangzhou 510610 China
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Zhang S, Ma Q, Dong L, Jia X, Liu L, Huang F, Liu G, Sun Z, Chi J, Zhang M, Zhang R. Phenolic profiles and bioactivities of different milling fractions of rice bran from black rice. Food Chem 2022; 378:132035. [PMID: 35042109 DOI: 10.1016/j.foodchem.2021.132035] [Citation(s) in RCA: 12] [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: 03/19/2021] [Revised: 08/22/2021] [Accepted: 12/31/2021] [Indexed: 11/04/2022]
Abstract
Phytochemicals are unevenly distributed in grain kernels and concentrated in bran fractions. However, their specific distribution in the grain bran, especially colored grains, is not clarified. This study divided rice bran from black rice into five fractions by stepwise milling to obtain BF1(outermost layer) to BF5 (the innermost layer). Each fraction accounted for approximately 2% of the whole kernel. The total content of phenolics (TPC), flavonoids (TFC), and anthocyanins (TAC) of five fractions significantly decreased from BF1 to BF5. The TPC, TFC and TAC of BF1 contribute 25.7%, 28.2%, 28.4% to the total of five fractions, respectively. HPLC analysis showed that the contents of most anthocyanin and phenolic acids compounds decreased from BF1 to BF5. Together with α-glucosidase and α-amylase inhibitory activities of BF1, the antioxidant activity was higher than those of other fractions. These results can guide the moderate processing of black rice and the utilization of its bran.
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Affiliation(s)
- Shuai Zhang
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Qin Ma
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Lei Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Guang Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Zhida Sun
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China
| | - Mingwei Zhang
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China; Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
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Ye C, Zhang R, Dong L, Chi J, Huang F, Dong L, Zhang M, Jia X. α-Glucosidase inhibitors from brown rice bound phenolics extracts (BRBPE): Identification and mechanism. Food Chem 2022; 372:131306. [PMID: 34638069 DOI: 10.1016/j.foodchem.2021.131306] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [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: 09/05/2021] [Revised: 09/30/2021] [Accepted: 09/30/2021] [Indexed: 01/18/2023]
Abstract
Brown rice bound phenolics extracts (BRBPE) have been reported to possess α-glucosidase inhibitory effects, the specific enzyme inhibitors involved in this process were unknown. Here, α-glucosidase inhibitors in BRBPE were screened using bioaffinity ultrafiltration methods, and seven phenolic compounds - three monomers (p-coumaric acid, ferulic acid and methyl ferulate), three dimers (8-5', 5-5' and 8-O-4' diferulic acid) and a trimer (5-5'/8-O-4″ dehydrotriferulic acid) were identified as exact inhibitors, among which 5-5'/8-O-4″ dehydrotriferulic acid and 5-5'diferulic acid exhibited the best inhibitory activity. Enzyme kinetic analysis suggested that the inhibitory mechanism of these seven inhibitors including competitive, noncompetitive, uncompetitive and mixed manner. Molecular docking analysis revealed that the seven inhibitors bind with α-glucosidase mainly by hydrogen bonding interaction, hydrophobic force and ionic bond. Molecular dynamics simulation further explored the structure and molecular property of phenolic-glucosidase complex. This work provided a deep insight into brown rice bound phenolics acting as potent α-glucosidase inhibitors.
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Affiliation(s)
- Caiyan Ye
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Limei Dong
- Department of Horticulture, Guangdong Eco-Engineering Polytechnic, Guangzhou 510520, PR China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
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11
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Deng M, Jia X, Dong L, Liu L, Huang F, Chi J, Ma Q, Zhao D, Zhang M, Zhang R. Structural elucidation of flavonoids from Shatianyu (Citrus grandis L. Osbeck) pulp and screening of key antioxidant components. Food Chem 2021; 366:130605. [PMID: 34311239 DOI: 10.1016/j.foodchem.2021.130605] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 07/11/2021] [Accepted: 07/13/2021] [Indexed: 12/17/2022]
Abstract
The Citrus genus is a good source of dietary flavonoids, which have many health benefits. As a representative citrus fruit, the flavonoids composition in Shatianyu (Citrus grandis L. Osbeck) pulp remains to be investigated. In the present study, 11 flavonoids were isolated and identified from Shatianyu pulp flavonoid extracts (SPFEs). Among them, 4 flavonoids were previously undescribed and 2 flavonoids were firstly isolated from pummelo. The cellular antioxidant activity (CAA) and oxygen radical absorbance capacity (ORAC) of isolated compounds were evaluated. Naringin and rhoifolin showed the highest ORAC activity, and the presence of a 3-hydroxy-3-methylglutaryl or a 4'-glucose decreased the ORAC activity of flavonoids. The contribution of isolated flavonoids to the holistic antioxidant activity of SPFEs was determined by an online knockout method. Melitidin, bergamjuicin and naringin contributed most to ORAC activity, while bergamjuicin, melitidin and apigenin-4'-O-β-d-glucopyranosyl-7-O-α-l-rhamnopyranosyl-(1 → 2)-[6″-O-(3- hydroxy-3-methylgltaryl)]-β-d-glucopyranoside contributed most to CAA activity.
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Affiliation(s)
- Mei Deng
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China; Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Lei Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Qin Ma
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Dong Zhao
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China; Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China.
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
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Nanes B, Azarova E, Chi J, Bhatt K, Isogai T, Reed D, Dean K, Danuser G. 120 Keratin switching modulates cellular mechanical properties to balance epidermal strength and plasticity. J Invest Dermatol 2021. [DOI: 10.1016/j.jid.2021.02.139] [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: 10/21/2022]
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Bai Y, Huang F, Zhang R, Ma Q, Dong L, Su D, Chi J, Zhang M. Longan pulp polysaccharide protects against cyclophosphamide-induced immunosuppression in mice by promoting intestinal secretory IgA synthesis. Food Funct 2021; 11:2738-2748. [PMID: 32175536 DOI: 10.1039/c9fo02780g] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
This study aimed to explore the effect of longan pulp polysaccharide (LP) on the systemic immunity and intestinal mucosal immunity of immunosuppressive mice. The synthesis process and secretion of intestinal secretory IgA (SIgA) were investigated. Results showed that LP increased the thymus index, spleen index, and serum IgA level in cyclophosphamide (CTX)-treated mice. SIgA secretion in the intestinal lumen was increased by LP as well. The underlying mechanism comes down to the facts as follow: LP increased intestinal cytokines expression and TGFβRII that is associated with pathways of IgA class switch recombination (CSR). By improving protein expression of mucosal addressin cell-adhesion molecule-1 (MAdCAM-1) and integrin α4β7, LP was beneficial to gut homing of IgA+ plasma cells. LP increased IgA, polymeric immunoglobulin receptor (pIgR), and secretory component (SC) to fortify the SIgA secretion. This study suggested that moderate consumption of LP is helpful for improving systemic immunity and intestinal mucosal immunity via promotion of intestinal SIgA to strengthen the mucosal barrier.
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Affiliation(s)
- Yajuan Bai
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Fei Huang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Qin Ma
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Dongxiao Su
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, PR China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, PR China.
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Zhou Y, Chi J, Huang Y, Dong B, Lv W, Wang YG. Efficacy and safety of endothelin receptor antagonists in type 2 diabetic kidney disease: A systematic review and meta-analysis of randomized controlled trials. Diabet Med 2021; 38:e14411. [PMID: 33000477 DOI: 10.1111/dme.14411] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 09/10/2020] [Accepted: 09/22/2020] [Indexed: 01/01/2023]
Abstract
AIM To analyse the efficacy and safety of endothelin receptor antagonists for people with diabetic kidney disease. METHODS Randomized controlled trials comparing endothelin receptor antagonists with placebo in people with diabetic kidney disease were identified through PubMed, Embase and the Cochrane Library. We used a random-effect model to calculate the mean difference or risk ratio with the 95% CI. RESULTS Seven studies with a total of 4730 participants were included. Overall, endothelin receptor antagonists significantly reduced albuminuria compared with placebo (standardized mean difference -0.48, 95% CI -0.64 to -0.33). Atrasentan, in particular, effectively reduced albuminuria (standardized mean difference -0.58, 95% CI -1.00 to -0.17) and the risk of composite renal endpoints (risk ratio 0.65; 95% CI 0.49 to 0.88), with insignificant change in the rate of congestive heart failure (risk ratio 1.40, 95% CI 0.76 to 2.56) and mortality (risk ratio 1.11, 95% CI 0.77 to 1.61). In contrast, although avosentan reduced albuminuria (standardized mean difference -0.47, 95% CI -0.57 to -0.36) and the risk of composite renal endpoints (risk ratio 0.63, 95% CI 0.42 to 0.94), it was associated with a significant increase in congestive heart failure risk (risk ratio 2.61, 95% CI 1.36 to 5.00) and an insignificant increase in mortality risk (risk ratio 1.50, 95% CI 0.81, 2.78). No significant change in efficacy or safety outcomes with bosentan was detected. Dose-response analysis indicated that 0.75 mg/day atrasentan is expected to be optimal for renoprotection, with maximal albuminuria reduction and minimal fluid retention events. CONCLUSIONS Among the endothelin receptor antagonists, atrasentan and avosentan, but not bosentan, are effective for renoprotection in people with diabetic kidney disease. Compared with other types and doses, atrasentan 0.75 mg/day is the most promising, with maximal albuminuria reduction and minimal fluid retention. Vigilant monitoring of congestive heart failure risk is needed in future clinical practice. (PROSPERO registration no. CRD42020169840).
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Affiliation(s)
- Y Zhou
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - J Chi
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Y Huang
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - B Dong
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - W Lv
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
| | - Y G Wang
- Department of Endocrinology, Affiliated Hospital of Medical College Qingdao University, Qingdao, China
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Luo M, Zhang R, Liu L, Chi J, Huang F, Dong L, Ma Q, Jia X, Zhang M. Preparation, stability and antioxidant capacity of nano liposomes loaded with procyandins from lychee pericarp. J FOOD ENG 2020. [DOI: 10.1016/j.jfoodeng.2020.110065] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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16
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Liu J, Li J, Zeng S, Cai G, Wang Y, Chi J, Li R, Yu Y, Jiao X, Dai Y, Feng Y, Van Zandt M, Seager S, Reich C, Gao Q. Evolution of treatments for endometrial cancers: Clinical data from two national medical databases. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.619] [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: 10/23/2022]
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17
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Cai G, Gao Y, Lu W, Zeng S, Chi J, Jiao X, Li R, Li X, Liu J, Song K, Yu Y, Dai Y, Cui B, Lv W, Kong B, Xie X, Ma D, Gao Q. Ovarian cancer and pretreatment thrombosis-associated indices: Evidence based on multicenter, retrospective, observational study. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.624] [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: 10/23/2022]
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18
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Khan SA, Zhang M, Liu L, Dong L, Ma Y, Wei Z, Chi J, Zhang R. Co-culture submerged fermentation by lactobacillus and yeast more effectively improved the profiles and bioaccessibility of phenolics in extruded brown rice than single-culture fermentation. Food Chem 2020; 326:126985. [DOI: 10.1016/j.foodchem.2020.126985] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 02/12/2020] [Accepted: 05/03/2020] [Indexed: 12/16/2022]
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19
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Gao Y, Zeng S, Xiong X, Cai G, Wang Z, Xu X, Chi J, Jiao X, Liu J, Li R, Yao S, Li X, Song K, Tang J, Xing H, Yu Z, Zeng S, Zhang Q, Yi C, Kong B, Xie X, Ma D, Li X, Gao Q. A deep convolutional neural network enabled pelvic ultrasound imaging algorithm for early and accurate diagnosis of ovarian cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.628] [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: 11/28/2022]
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Chi J, Ji YD, Shen L, Yin SN, Ding N, Chen XF, Xu DF. Low-dose CT of paediatric paranasal sinus using an ultra-low tube voltage (70 kVp) combined with the flash technique. Clin Radiol 2020; 76:77.e17-77.e21. [PMID: 32950256 DOI: 10.1016/j.crad.2020.08.023] [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: 12/27/2018] [Accepted: 08/20/2020] [Indexed: 10/23/2022]
Abstract
AIM To evaluate the radiation dose and diagnostic image quality of low-dose computed tomography (CT) of the paranasal sinus in children, with acquisition at an ultra-low tube voltage (70 kVp) combined with the Flash technique. MATERIALS AND METHODS Eighty paediatric patients underwent CT of the paranasal sinus and were divided into two groups according to different protocols (group A: 80 kVp protocol with conventional spiral mode [n=40] and group B: 70 kVp protocol with Flash scan mode [n=40]). For each examination, the CT dose index (CTDIvol), dose-length product (DLP), and effective dose (ED) were estimated. The image noise, signal-to-noise ratio (SNR), and overall subjective diagnostic image quality were also evaluated. RESULTS For radiation dose, the CTDIvol (mGy), DLP (mGy·cm), and ED (mSv) values of the 70 kVp protocol were significantly lower than those of the 80 kVp protocol (CTDIvol: 1.57±0.009 versus 0.39±0.004 mGy, p<0.001; DLP: 19.88±2.01 versus 6.31±0.52 mGy·cm, p<0.001; ED: 0.079±0.016 versus 0.024±0.005 mSv, p<0.001). Compared with those of the 80-kVp protocol, the image noise increased by 40.7% (p=0.113), the SNRsoft-tissue decreased by 48.9%, and the SNRbone increased by 10.1% with the 70-kVp protocol (p=0.176 and 0.227, respectively). There was no significant difference in the overall subjective image quality grades between these two groups (p=0.15). CONCLUSION When imaging the paranasal sinus in children, an ultra-low tube voltage (70 kVp) combined with the Flash CT technique can reduce the radiation dose significantly while maintaining diagnostic image quality with clinically acceptable image noise.
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Affiliation(s)
- J Chi
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - Y-D Ji
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - L Shen
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - S-N Yin
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - N Ding
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - X-F Chen
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China
| | - D-F Xu
- Department of Radiology, First People's Hospital of Wujiang District, Wujiang, Jiangsu 215200, China.
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Zhang X, Dong L, Jia X, Liu L, Chi J, Huang F, Ma Q, Zhang M, Zhang R. Bound Phenolics Ensure the Antihyperglycemic Effect of Rice Bran Dietary Fiber in db/ db Mice via Activating the Insulin Signaling Pathway in Skeletal Muscle and Altering Gut Microbiota. J Agric Food Chem 2020; 68:4387-4398. [PMID: 32197570 DOI: 10.1021/acs.jafc.0c00584] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Whole-grain dietary fiber intake is beneficial in the prevention of metabolic syndrome. Considering rich in bound phenolics being a special characteristic of whole-grain dietary fiber, the aim of this study was to evaluate the effects of the presence or absence of bound phenolics in rice bran dietary fiber (RBDF) on regulating glucose metabolism in diabetic db/db mice. In comparison to phenolics-removed RBDF (PR-RBDF) intervention without an antihyperglycemic effect, RBDF and formulated RBDF (F-RBDF, obtained by mixing PR-RBDF and hydrolyzed-bound phenolics) significantly reduced fasting blood glucose levels after 1 and 5 weeks of interventions, respectively. The presence of bound phenolics interventions could activate the IRS1/AKT/GLUT4 insulin signaling pathway in skeletal muscle and alter gut microbiota by modulating gut microbiota dysbiosis and enriching the butyric-acid-producing bacteria genera of the families Lachnospiraceae and Ruminococcaceae, thus leading to the reduction of blood glucose levels. These findings indicate that bound phenolics ensure the antihyperglycemic effect of RBDF.
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Affiliation(s)
- Xinwen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China
| | - Lihong Dong
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Xuchao Jia
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Lei Liu
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Qin Ma
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan, Hubei 430070, People's Republic of China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs, Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, Guangdong 510610, People's Republic of China
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Han Y, Chi J, Zhang M, Zhang R, Fan S, Huang F, Xue K, Liu L. Characterization of saponins and phenolic compounds: antioxidant activity and inhibitory effects on α-glucosidase in different varieties of colored quinoa (Chenopodium quinoa Willd). Biosci Biotechnol Biochem 2019; 83:2128-2139. [DOI: 10.1080/09168451.2019.1638756] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
ABSTRACT
This study investigated the contents of saponins and phenolic compounds in relation to their antioxidant activity and α-glucosidase inhibition activity of 7 colored quinoa varieties. The total saponin content was significantly different among 7 varieties and ranged from 7.51 to 12.12 mg OAE/g DW. Darker quinoa had a higher content of phenolic compounds, as well as higher flavonoids and antioxidant activity than that of light varieties. Nine individual phenolic compounds were detected in free and bound form, with gallic acid and ferulic acid representing the major compounds. The free and bound phenolic compounds (gallic acid and ferulic acid in particular) exhibited high linear correlation with their corresponding antioxidant values. In addition, the free phenolic extracts from colored quinoa exhibited higher inhibitory activity against α-glucosidase than the bound phenolic extracts. These findings imply that colored quinoa with abundant bioactive phytochemicals could be an important natural source for preparing functional food.
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Affiliation(s)
- Yameng Han
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
- College of Life Sciences, Shanxi University, Taiyuan, P.R. China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
| | - Sanhong Fan
- College of Life Sciences, Shanxi University, Taiyuan, P.R. China
| | - Fei Huang
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
| | - Kaming Xue
- Department of Traditional Chinese Medicine, Union Hospital Affiliated to Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Lei Liu
- Sericultural & Agri-Food Research Institute Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture and Rural Affairs/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, P.R. China
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Shi Y, Chi J, Wang T, Cui D, Tang X, Ding M, Li P, Zhai B. Mid-term outcome of percutaneous thermal ablation for intrahepatic recurrent hepatocellular carcinoma after liver transplantation. Clin Radiol 2019; 74:735.e1-735.e7. [DOI: 10.1016/j.crad.2019.05.029] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022]
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Ding M, Tang X, Cui D, Chi J, Shi Y, Wang T, Zhai B, Li P. Clinical outcomes of ultrasound-guided radiofrequency ablation for the treatment of primary papillary thyroid microcarcinoma. Clin Radiol 2019; 74:712-717. [PMID: 31253420 DOI: 10.1016/j.crad.2019.05.012] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2018] [Accepted: 05/20/2019] [Indexed: 01/04/2023]
Abstract
AIM To evaluate the safety, efficacy, and long-term outcomes of ultrasound-guided radiofrequency ablation (RFA) for the treatment of primary papillary thyroid microcarcinoma (PTMC). MATERIALS AND METHODS A total of 37 patients with 38 PTMC nodules underwent RFA at a power of 20 W between September 2014 and December 2017. The clinical data of these patients were reviewed retrospectively and analysed. Imaging studies of the nodules were conducted, and the patients' thyroid function was assessed before RFA; 1, 3, 6, and 12 months after RFA; and every 6 months thereafter. The volumes and volume reduction rate (VRR) of the nodules were also calculated. RESULTS RFA with a low power of 20 W was used in the treatment of 37 patients with 38 PTMC nodules. All nodules achieved complete ablation, no complications occurred, and thyroid function was not affected. During follow-up, the volume of the nodules gradually decreased. Twelve months after ablation, the mean volumes of the nodules significantly decreased to 0.01±0.03 ml with a VRR of 99.34±3.49%. At a median follow-up of 6 (range: 1-18) months, 37 of the 38 nodules were completely absorbed, and no recurrence was observed in all 37 patients. CONCLUSIONS Low-power RFA showed good safety and promising efficacy outcomes for the treatment of PTMC. In addition to surgery and active surveillance, RFA may be an alternative treatment option for patients with PTMC.
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Affiliation(s)
- M Ding
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - X Tang
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - D Cui
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - J Chi
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - Y Shi
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - T Wang
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China
| | - B Zhai
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China.
| | - P Li
- Department of Interventional Oncology, Renji Hospital, School of Medicine, Shanghai Jiaotong University, 160# Pujian Road, Shanghai, 200127, China.
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Liu Y, Lin F, Fu Y, Chen W, Liu W, Chi J, Zhang X, Yin X. Cortistatin inhibits arterial calcification in rats via GSK3β/β-catenin and protein kinase C signalling but not c-Jun N-terminal kinase signalling. Acta Physiol (Oxf) 2018; 223:e13055. [PMID: 29436118 DOI: 10.1111/apha.13055] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [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: 03/15/2017] [Revised: 02/06/2018] [Accepted: 02/07/2018] [Indexed: 12/27/2022]
Abstract
AIM Cortistatin (CST) is a newly discovered endogenous active peptide that exerts protective effects on the cardiovascular system. However, the relationship between CST and aortic calcification and the underlying mechanism remain obscure. Therefore, we investigated effects of CST on aortic calcification and its signalling pathways. METHODS Calcium content and alkaline phosphatase (ALP) activity were measured using the o-cresolphthalein colorimetric method and ALP assay kit respectively. Protein expression of smooth muscle (SM)-ɑ-actin, osteocalcin (OCN), β-catenin, glycogen synthase kinase 3β (GSK3β), p-GSK3β, protein kinase C (PKC), p-PKC, c-Jun N-terminal kinase (JNK) and p-JNK was determined using Western blotting. RESULTS In aorta from a rat vitamin D3 calcification model, CST abrogated calcium deposition and pathological damage, decreased the protein expression of OCN and β-catenin and increased SM-ɑ-actin expression. In a rat cultured vascular smooth muscular cell (VSMC) calcification model induced by β-glycerophosphate (β-GP), CST inhibited the increase in ALP activity, calcium content and OCN protein and the decrease in SM-α-actin expression. CST also inhibited the β-GP-induced increase in p-GSK3β and β-catenin protein (both P < .05). The inhibitory effects of CST on ALP activity, calcium deposition and β-catenin protein were abolished by pretreatment with lithium chloride, a GSK3β inhibitor. CST promoted the protein expression of p-PKC by 68.5% (P < .01), but not p-JNK. The ability of CST to attenuate β-GP-induced increase in ALP activity, calcium content and OCN expression in the VSMC model was abolished by pretreatment with the PKC inhibitor Go6976. CONCLUSION These results indicate that CST inhibits aortic calcification and osteogenic differentiation of VSMCs likely via the GSK3β/β-catenin and PKC signalling pathways, but not JNK signalling pathway.
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Affiliation(s)
- Y. Liu
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - F. Lin
- Department of Comprehensive Geriatric; Mianyang Central Hospital; Mianyang China
| | - Y. Fu
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - W. Chen
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - W. Liu
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - J. Chi
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - X. Zhang
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
| | - X. Yin
- Department of Cardiology; the First Affiliated Hospital of Harbin Medical University; Harbin China
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Zhang R, Khan SA, Chi J, Wei Z, Zhang Y, Deng Y, Liu L, Zhang M. Different effects of extrusion on the phenolic profiles and antioxidant activity in milled fractions of brown rice. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.09.042] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Zhang R, Huang L, Deng Y, Chi J, Zhang Y, Wei Z, Zhang M. Phenolic content and antioxidant activity of eight representative sweet corn varieties grown in South China. International Journal of Food Properties 2017. [DOI: 10.1080/10942912.2016.1270964] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Ruifen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan, China
| | - Long Huang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Yuanyuan Deng
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Yan Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Zhencheng Wei
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou, China
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Su D, Zhang R, Hou F, Chi J, Huang F, Yan S, Liu L, Deng Y, Wei Z, Zhang M. Lychee pulp phenolics ameliorate hepatic lipid accumulation by reducing miR-33 and miR-122 expression in mice fed a high-fat diet. Food Funct 2017; 8:808-815. [DOI: 10.1039/c6fo01507g] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The repression of miR-33 and miR-122 is a possible molecular mechanism of the hypolipidemic effects of lychee pulp phenolics.
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Su D, Zhang R, Zhang C, Huang F, Xiao J, Deng Y, Wei Z, Zhang Y, Chi J, Zhang M. Phenolic-rich lychee (Litchi chinensis Sonn.) pulp extracts offer hepatoprotection against restraint stress-induced liver injury in mice by modulating mitochondrial dysfunction. Food Funct 2016; 7:508-15. [PMID: 26569420 DOI: 10.1039/c5fo00975h] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [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]
Abstract
The pulp from lychee, a tropical to subtropical fruit, contains large quantities of phenolic compounds and exhibits antioxidant activities both in vitro and in vivo. In the present study, we investigated the mechanisms underlying the hepatoprotective effects of lychee pulp phenolics (LPPs) against restraint stress-induced liver injury in mice. After 18 h of restraint stress, increased levels of serum alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities were observed. High levels of thiobarbituric acid reactive substances (TBARS) were also found. Restraint stress causes liver damage, which was protected against by LPP pretreatment at a dosage of 200 mg (kg d)(-1) for 21 consecutive days. This treatment remarkably decreased the serum ALT, AST and TBARS levels, elevated the liver glutathione (GSH) content, and the activities of glutathione peroxidase (GPx), superoxide dismutase (SOD) and catalase (CAT). Furthermore, respiratory chain complex and Na(+)-K(+)-ATPase activities were enhanced in liver mitochondria, while mitochondrial membrane potential levels and reactive oxygen species (ROS) production decreased. Thus, treatment with LPPs ameliorated restraint stress-induced liver mitochondrial dysfunction. These results suggest that LPPs protect the liver against restraint stress-induced damage by scavenging free radicals and modulating mitochondrial dysfunction. Thus, lychee pulp may be a functional biofactor to mitigate oxidative stress.
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Affiliation(s)
- Dongxiao Su
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China. and Department of Food Science and Engineering, College of Life Science, Yangtze University, Jingzhou, Hubei 434025, P. R. China
| | - Ruifen Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Cuilan Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Fei Huang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Juan Xiao
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Yuanyuan Deng
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Zhencheng Wei
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Yan Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Jianwei Chi
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China.
| | - Mingwei Zhang
- Sericultural & Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences/Key Laboratory of Functional Foods, Ministry of Agriculture/Guangdong Key Laboratory of Agricultural Products Processing, Guangzhou 510610, China. and Department of Food Science and Engineering, College of Life Science, Yangtze University, Jingzhou, Hubei 434025, P. R. China
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Yao L, Yang L, Chen J, Wang X, Xue L, Li W, Sui X, Wen L, Chi J, Zhu Y, Zhang J, Xu C, Zhu T, Wang W. Characteristics of carbonaceous aerosols: Impact of biomass burning and secondary formation in summertime in a rural area of the North China Plain. Sci Total Environ 2016; 557-558:520-530. [PMID: 27031303 DOI: 10.1016/j.scitotenv.2016.03.111] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 02/20/2016] [Accepted: 03/16/2016] [Indexed: 06/05/2023]
Abstract
To determine the characteristics of carbonaceous aerosols in rural areas of the North China Plain, field measurements were conducted at Yucheng (YC) in the summers of 2013 and 2014. The concentrations of carbonaceous aerosols at YC exhibited clear diurnal variation, with higher concentrations in the early morning and at night and lower concentrations during the afternoon hours. The mass-balance method designed for particulate matter smaller than 2.5μm (PM2.5) was used to calculate the organic matter (OM)/organic carbon (OC) ratio. The value obtained, 2.07±0.05, was suggested as a reference to estimate organics in PM2.5 in rural areas of the North China Plain. Biomass burning was identified to be a significant source of carbonaceous aerosols; approximately half of the samples obtained at YC were affected by biomass burning during summer 2013. Case studies revealed that biomass burning accounted for up to 52.6% of the OC and 51.1% of the elemental carbon in PM2.5 samples. The organic coatings observed on sulphur-rich and potassium-rich particles indicated the formation of secondary organic aerosols (SOA) from the oxidation of precursor volatile organic compounds (VOCs) during the aging of smoke released from biomass burning. Based on the evolution of the VOCs, the contribution of VOCs oxidation to SOA concentration was 3.21 and 1.07μgm(-3)ppm(-1) CO under conditions of low nitrogen oxide (NOx) and high NOx, respectively. Aromatics (e.g. benzene, toluene, xylene and ethylbenzene) made the greatest contribution to SOA concentration (88.4% in low-NOx conditions and 80.6% in high-NOx conditions). The results of the study offer novel insights into the effects of biomass burning on the carbonaceous aerosols and SOA formation in polluted rural areas.
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Affiliation(s)
- Lan Yao
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Lingxiao Yang
- Environment Research Institute, Shandong University, Jinan 250100, China; School of Environmental Science and Engineering, Shandong University, Jinan 250100, China.
| | - Jianmin Chen
- Environment Research Institute, Shandong University, Jinan 250100, China; School of Environmental Science and Engineering, Shandong University, Jinan 250100, China; Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Fudan Tyndall Centre, Department of Environmental Science and Engineering, Fudan University, Shanghai 200433, China
| | - Xinfeng Wang
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Likun Xue
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Weijun Li
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Xiao Sui
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Liang Wen
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Jianwei Chi
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Yanhong Zhu
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Junmei Zhang
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Caihong Xu
- Environment Research Institute, Shandong University, Jinan 250100, China
| | - Tong Zhu
- State Key Laboratory for Environment Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China
| | - Wenxing Wang
- Environment Research Institute, Shandong University, Jinan 250100, China
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31
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Bashford-Rogers RJM, Nicolaou KA, Bartram J, Goulden NJ, Loizou L, Koumas L, Chi J, Hubank M, Kellam P, Costeas PA, Vassiliou GS. Eye on the B-ALL: B-cell receptor repertoires reveal persistence of numerous B-lymphoblastic leukemia subclones from diagnosis to relapse. Leukemia 2016; 30:2312-2321. [PMID: 27211266 PMCID: PMC5155029 DOI: 10.1038/leu.2016.142] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 05/02/2016] [Accepted: 05/12/2016] [Indexed: 02/08/2023]
Abstract
The strongest predictor of relapse in B-cell acute lymphoblastic leukemia (B-ALL) is the level of persistence of tumor cells after initial therapy. The high mutation rate of the B-cell receptor (BCR) locus allows high-resolution tracking of the architecture, evolution and clonal dynamics of B-ALL. Using longitudinal BCR repertoire sequencing, we find that the BCR undergoes an unexpectedly high level of clonal diversification in B-ALL cells through both somatic hypermutation and secondary rearrangements, which can be used for tracking the subclonal composition of the disease and detect minimal residual disease with unprecedented sensitivity. We go on to investigate clonal dynamics of B-ALL using BCR phylogenetic analyses of paired diagnosis-relapse samples and find that large numbers of small leukemic subclones present at diagnosis re-emerge at relapse alongside a dominant clone. Our findings suggest that in all informative relapsed patients, the survival of large numbers of clonogenic cells beyond initial chemotherapy is a surrogate for inherent partial chemoresistance or inadequate therapy, providing an increased opportunity for subsequent emergence of fully resistant clones. These results frame early cytoreduction as an important determinant of long-term outcome.
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Affiliation(s)
- R J M Bashford-Rogers
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.,Department of Medicine, University of Cambridge, Cambridge Biomedical Campus, Cambridge, UK
| | - K A Nicolaou
- The Center for the Study of Hematological Malignancies, Nicosia, Cyprus
| | - J Bartram
- Department of Haematology, Great Ormond Street Hospital for Children, London, UK.,Genetics and Genomic Medicine Programme, UCL Institute of Child Health, London, UK
| | - N J Goulden
- Department of Haematology, Great Ormond Street Hospital for Children, London, UK
| | - L Loizou
- Pediatric Oncology/Hematology Clinic, Nicosia, Cyprus
| | - L Koumas
- The Center for the Study of Hematological Malignancies, Nicosia, Cyprus
| | - J Chi
- The Center for the Study of Hematological Malignancies, Nicosia, Cyprus
| | - M Hubank
- Genetics and Genomic Medicine Programme, UCL Institute of Child Health, London, UK
| | - P Kellam
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.,Division of Infection and Immunity, Research Department of Infection, University College London, London, UK
| | - P A Costeas
- The Center for the Study of Hematological Malignancies, Nicosia, Cyprus
| | - G S Vassiliou
- Wellcome Trust Sanger Institute, Wellcome Trust Genome Campus, Hinxton, Cambridge, UK.,The Center for the Study of Hematological Malignancies, Nicosia, Cyprus.,Cambridge Blood and Stem Cell Biobank and Cancer Molecular Diagnosis Laboratory, Cambridge Biomedical Research Centre, Cambridge, UK
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32
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Hou F, Su D, Xu J, Gong Y, Zhang R, Wei Z, Chi J, Zhang M. Enhanced Extraction of Phenolics and Antioxidant Capacity from Sorghum (Sorghum bicolor L. Moench) Shell Using Ultrasonic-Assisted Ethanol-Water Binary Solvent. J FOOD PROCESS PRES 2016. [DOI: 10.1111/jfpp.12699] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Fangli Hou
- College of Food Science; Guangdong Pharmaceutical University; Zhongshan 528458 People's Republic of China
| | - Dongxiao Su
- Department of Food Science and Engineering; College of Life Science, Yangtze University; Jingzhou Hubei 434025 People's Republic of China
| | - Jinrui Xu
- College of Food Science; Guangdong Pharmaceutical University; Zhongshan 528458 People's Republic of China
| | - Yushi Gong
- College of Food Science; Guangdong Pharmaceutical University; Zhongshan 528458 People's Republic of China
| | - Ruifen Zhang
- Key Laboratory of Functional Food, Ministry of Agriculture; Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences; Guangzhou 510610 People's Republic of China
| | - Zhencheng Wei
- Key Laboratory of Functional Food, Ministry of Agriculture; Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences; Guangzhou 510610 People's Republic of China
| | - Jianwei Chi
- Key Laboratory of Functional Food, Ministry of Agriculture; Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences; Guangzhou 510610 People's Republic of China
| | - Mingwei Zhang
- Department of Food Science and Engineering; College of Life Science, Yangtze University; Jingzhou Hubei 434025 People's Republic of China
- Key Laboratory of Functional Food, Ministry of Agriculture; Sericultural and Agri-food Research Institute, Guangdong Academy of Agricultural Sciences; Guangzhou 510610 People's Republic of China
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33
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Lin Y, Hu C, Chi J, Lin L, Yen T, Lin Y, Liou T. Effects of repetitive transcranial magnetic stimulation of the unaffected hemisphere leg motor area in patients with subacute stroke and substantial leg impairment: A pilot study. J Rehabil Med 2015; 47:305-10. [DOI: 10.2340/16501977-1943] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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34
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Robinson T, Chi J, Dewhirst M. Hypoxia Induces mRNA 3’UTR Truncation in Multiple Cell Types In Vitro. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2373] [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: 11/25/2022]
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35
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Ti H, Li Q, Zhang R, Zhang M, Deng Y, Wei Z, Chi J, Zhang Y. Free and bound phenolic profiles and antioxidant activity of milled fractions of different indica rice varieties cultivated in southern China. Food Chem 2014; 159:166-74. [PMID: 24767040 DOI: 10.1016/j.foodchem.2014.03.029] [Citation(s) in RCA: 107] [Impact Index Per Article: 10.7] [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: 12/03/2013] [Revised: 03/03/2014] [Accepted: 03/08/2014] [Indexed: 11/24/2022]
Abstract
This study quantified free and bound phytochemicals and their antioxidant activity in the endosperm and bran/embryo of different indica rice varieties. Phytochemicals mainly existed as free form in the bran/embryo and as both free and bound forms in the endosperm. The average values of total phenolic content, flavonoid content, FRAP, ABTS and ORAC values in the bran/embryo were 3.1, 10.4, 8.2, 11.2 and 11.4 times higher than those in the endosperm, respectively. In whole brown rice, the bran contributed 59.2%, 53.7%, 47.7%, 55.5% and 56.9% of total phenolics, flavonoids, FRAP, ABTS and ORAC values, respectively. Seven individual phenolics (gallic, protocatechuic, chlorogenic, caffeic, syringic, coumaric and ferulic acids) were detected with most coumaric and ferulic acids in the bran. All measurements exhibited varietal differences. These findings provide important information for improving human health by encouraging the consumption of whole brown rice and its use in food product development.
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Affiliation(s)
- Huihui Ti
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Qing Li
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Ruifen Zhang
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Mingwei Zhang
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China.
| | - Yuanyuan Deng
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Zhencheng Wei
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Jianwei Chi
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
| | - Yan Zhang
- Sericultural and Agri-Food Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou 510610, PR China
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36
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Hou F, Zhang R, Zhang M, Su D, Wei Z, Deng Y, Zhang Y, Chi J, Tang X. Hepatoprotective and antioxidant activity of anthocyanins in black rice bran on carbon tetrachloride-induced liver injury in mice. J Funct Foods 2013. [DOI: 10.1016/j.jff.2013.07.015] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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37
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Chi J, Chiu B, Cao Y, Liu X, Wang J, Balu N, Yuan C, Xu J. Assessment of femoral artery atherosclerosis at the adductor canal using 3D black-blood MRI. Clin Radiol 2013; 68:e213-21. [DOI: 10.1016/j.crad.2012.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2012] [Revised: 12/03/2012] [Accepted: 12/07/2012] [Indexed: 10/27/2022]
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38
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Gao C, Li Y, Chi J, Lecomte P, Jerome R, Jerome C, Lei L, Li H. A novel strategy towards cyclic aliphatic (co)polyesters. EXPRESS POLYM LETT 2013. [DOI: 10.3144/expresspolymlett.2013.66] [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: 11/24/2022] Open
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39
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Chi J, Uzui H, Guo H, Ueda T, Lee JD. The role of eplerenone on activity of matrix metalloprotainase-2 stimulated by high glucose and interleukin 1 in human cardiac fibroblasts. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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40
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41
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Chi J, Guo H, Peng F, Yang B, Liu L, Uzui H. e0358 Profibrotic influence of high glucose on human cardiac fibroblast functions. Heart 2010. [DOI: 10.1136/hrt.2010.208967.358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
The finite difference time domain (FDTD) method is a popular technique for computational electromagnetics (CEM). The large computational power often required, however, has been a limiting factor for its applications. In this paper, we will present a graphics processing unit (GPU)-based parallel FDTD solver and its successful application to the investigation of a novel B1 shimming scheme for high-field magnetic resonance imaging (MRI). The optimized shimming scheme exhibits considerably improved transmit B(1) profiles. The GPU implementation dramatically shortened the runtime of FDTD simulation of electromagnetic field compared with its CPU counterpart. The acceleration in runtime has made such investigation possible, and will pave the way for other studies of large-scale computational electromagnetic problems in modern MRI which were previously impractical.
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Affiliation(s)
- J Chi
- School of Automation Engineering, Qingdao University, China.
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Herold CI, Yang I, Chi J, Sidor C, Parrillo L, Liotcheva V, Welch RA, Arnott J, Dewhirst MW, Blackwell KL. Comparative genomic and protein signatures and intratumoral treatment responses in patients with metastatic breast cancer (MBC) treated with paclitaxel (PTX) and 2-methoxyestradiol (2ME2). J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e22049] [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] [Indexed: 11/20/2022] Open
Abstract
e22049 Background: Tumors respond to both chemotherapy and radiation through a number of poorly understood survival mechanisms. These potential mechanisms include upregulation of anti-apoptotic and pro-angiogenic pathways, including those regulated by HIF-1α. Sequential MBC biopsies were used to examine 1) the effects of PTX on intratumoral HIF-1α mediated pathways; and 2) the ability of a HIF-1α inhibitor (2ME2) to modulate the tumor's HIF- 1α response to PTX. Methods: Key eligibility included pts with MBC, ECOG 0–2, unlimited prior therapies, and biopsiable tumors. Pts were treated on a 28-day schedule with weekly PTX (90 mg/m2 D1, D8, D15) and daily oral 2ME2 (1000, 1250,1500 or 2000 mg qid starting D8) and had 3 tumor biopsies: baseline (A); D8 post-PTX/pre-2ME2 (B); D22 post-PTX/post- 2ME2 (C). Serial biopsies were compared for genomic and single protein changes. Results: 20 pts (median age 52 yrs [31- 75]) were treated. 60% had ≥2 prior regimens for MBC, 35% had ≥3. No unexpected grade 3/4 toxicities were seen: neutropenia (n=6), anemia (2), hypophosphatemia (2), PE (1). The clinical benefit rate was 25% (4 PR, 1 SD). There were 13 pairs of tumor biopsies to compare points A/B and 10 to compare B/C. There were no consistent gene expression changes between A and B. Significant differences at C vs. B included changes in hypoxia-responsive genes (including CA9, HIF-2α) and upregulation of pro- angiogenic factors and hemoglobin transcripts. For the B/C comparison, 2 distinct groups emerged: the first (biopsy site liver) showed downregulation of gene expression programs driven by ER and the second (lymph node, breast) showed upregulation of endothelial cell- related genes. Conclusions: Combination therapy with PTX and 2ME2 is a well-tolerated and viable option for delaying disease progression for patients with heavily pretreated MBC. Significant gene expression changes before and after exposure to 2ME2 may reflect changes in tumor microcirculation consistent with the idea of vascular normalization. The potential significance of the differences in gene expression observed in the 2 distinct groups remains to be investigated. Supported by Komen Grant BCTR0504044 (MWD). [Table: see text]
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Affiliation(s)
- C. I. Herold
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - I. Yang
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - J. Chi
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - C. Sidor
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - L. Parrillo
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - V. Liotcheva
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - R. A. Welch
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - J. Arnott
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - M. W. Dewhirst
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
| | - K. L. Blackwell
- Duke University Medical Center, Durham, NC; Duke Institute for Genome Sciences and Policy, Durham, NC; EntreMed, Inc., Rockville, MD; Eastern Virginia Medical School, Norfolk, VA
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44
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Blackwell KL, Chi J, Sidor C, Burke P, LaVallee T, Shaw HS, Liotcheva V, Sims D, Hobbs L, Arnott J, Dewhirst MW. The effects of paclitaxel (PTX) and 2-methoxyestradiol (2-ME 2) on tumor oxygenation and HIF-1α in breast cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.3517] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
3517 Background: Radiation activates HIF-1a via a free radical mediated mechanism associated with reoxygenation. This response could be inhibited, resulting in reduced tumor vascularity and proliferation. Preclinical breast cancer models and a Phase Ib clinical trial (CT) were employed to look at the effects of chemo with or without an oral HIF-1a inhibitor, 2-ME2 (EntreMed) on tumor oxygenation and HIF-1a. Methods: Preclinical models of chemo effects on HIF-1a/oxygenation used 4T1 tumors and either doxorubicin (DOX) or cyclophosphamide (CTX). In addition, MDA-MB-231 tumors were treated with 2-ME2 (5days), and HIF-1a/MVD was assessed. In the CT, up to 15 pts with metastatic breast cancer, and biopsiable (>2 cm) non-bone sites were eligible. Tx was: D 1: PTX, 90 mg/m2; D 8: PTX, 90 mg/m2 with 2-ME2 (cohorts of 1,000/1,250/1,500 mg, qid). PTX was given 3 out of 4 wks. Bxs were done at enrollment, D8 (post-PTX), and D22 (post-PTX/2-ME2). Tumors were examined for changes in HIF-1a and CA9 levels, MVD, and genomic signatures of hypoxia. Plasma was obtained for osteoponin, PAI-1, and VEGF. Results: DOX and CTX both led to increases in HIF-1a, oxygenation, vascularity, and proliferation 4–10 days post treatment in the 4T1 model, while 2-ME2 reduced HIF-1a and MVD post treatment (5 d) in the MDA-MB-231 model. The CT opened in 6–2006, 9 pts have consented and 8 pts have undergone sequential biopsies and accrual continues. No DLT have been seen. Biopsy sites include chest wall, liver, and LN. Sufficient tissue/RNA/plasma has been obtained and the planned analyses will be presented. Conclusions: HIF-1a and tumor oxygenation appear to be modulated as a response to chemotherapy. The combination of PTX and 2-ME2 is clinically active, well-tolerated, and could serve as one of the first approaches to target HIF-1a in order to optimize therapy. Supported by Komen Grant BCTR0504044. [Table: see text]
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Affiliation(s)
- K. L. Blackwell
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - J. Chi
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - C. Sidor
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - P. Burke
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - T. LaVallee
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - H. S. Shaw
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - V. Liotcheva
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - D. Sims
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - L. Hobbs
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - J. Arnott
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
| | - M. W. Dewhirst
- Duke University Comprehensive Cancer Center, Durham, NC; Duke University IGSP, Durham, NC; EntreMed Inc, Rockville, MD
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Chi J, Liu H, Li B, Huang GL. Accumulation and biodegradation of dibutyl phthalate in Chlorella vulgaris. Bull Environ Contam Toxicol 2006; 77:21-9. [PMID: 16832751 DOI: 10.1007/s00128-006-1027-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2005] [Accepted: 05/11/2006] [Indexed: 05/10/2023]
Affiliation(s)
- J Chi
- College of Environmental Science and Engineering, Tianjin University, Tianjin 300072, People's Republic of China
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Motoya T, Thevanayagam LN, Blaschke TF, Au S, Stone JA, Jayewardene AL, Chi J, Aweeka FT. Characterization of nelfinavir binding to plasma proteins and the lack of drug displacement interactions. HIV Med 2006; 7:122-8. [PMID: 16420257 DOI: 10.1111/j.1468-1293.2006.00356.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To determine the characteristics of the binding of nelfinavir and active M8 to alpha1-acid glycoprotein (AAG) and human serum albumin (HSA), and to examine the displacement effects of drugs binding extensively to AAG (ritonavir and saquinavir) or to HSA (salicylic acid and valproic acid). METHODS Free drugs were separated by equilibrium dialysis after incubation with human plasma or purified plasma proteins and after co-incubation with potential displacers. Association constants were estimated from double-reciprocal plots of the data. RESULTS Nelfinavir and M8 free fractions [fractions of unbound drug (fus)] were 0.42+/-0.08% (mean+/-standard deviation) and 0.64+/-0.07%, respectively. For the two analytes, respectively, association constants were 7.25 x 10(7)/m and 3.33 x 10(7)/m for AAG and 1.11 x 10(6)/m and 7.92 x 10(5)/m for HSA. Nelfinavir fu in an AAG solution was significantly (P < 0.01) increased by the addition of ritonavir or saquinavir, whereas it was unaltered by addition of these drugs to whole plasma. Similarly, fu in an HSA solution was significantly increased (P < 0.01) by the addition of salicylic acid or valproic acid, whereas there was no difference in the free fraction in plasma. CONCLUSIONS The affinity of nelfinavir for human plasma proteins was higher than that of M8, and both nelfinavir and M8 showed higher affinity to AAG than to HSA. The free fraction of nelfinavir was not affected by drugs that bind extensively to AAG or albumin when these drugs were added to whole plasma in combination, suggesting a compensatory effect of alternate binding proteins.
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Affiliation(s)
- T Motoya
- Department of Clinical Pharmacy, University of California at San Francisco, San Francisco, CA 94143-0622, USA
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Chi J, Fu B, Nie W, Wang J, Graphodatsky AS, Yang F. New insights into the karyotypic relationships of Chinese muntjac (Muntiacus reevesi), forest musk deer (Moschus berezovskii) and gayal (Bos frontalis). Cytogenet Genome Res 2005; 108:310-6. [PMID: 15627750 DOI: 10.1159/000081520] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2004] [Accepted: 07/18/2004] [Indexed: 11/19/2022] Open
Abstract
To investigate the karyotypic relationships between Chinese muntjac (Muntiacus reevesi), forest musk deer (Moschus berezovskii) and gayal (Bos frontalis), a complete set of Chinese muntjac chromosome-specific painting probes has been assigned to G-banded chromosomes of these three species. Sixteen autosomal probes (i.e. 6-10, 12-22) of the Chinese muntjac each delineated one pair of conserved segments in the forest musk deer and gayal, respectively. The remaining six autosomal probes (1-5, and 11) each delineated two to five pairs of conserved segments. In total, the 22 autosomal painting probes of Chinese muntjac delineated 33 and 34 conserved chromosomal segments in the genomes of forest musk deer and gayal, respectively. The combined analysis of comparative chromosome painting and G-band comparison reveals that most interspecific homologous segments show a high degree of conservation in G-banding patterns. Eleven chromosome fissions and five chromosome fusions differentiate the karyotypes of Chinese muntjac and forest musk deer; twelve chromosome fissions and six fusions are required to convert the Chinese muntjac karyotype to that of gayal; one chromosome fission and one fusion separate the forest musk deer and gayal. The musk deer has retained a highly conserved karyotype that closely resembles the proposed ancestral pecoran karyotype but shares none of the rearrangements characteristic for the Cervidae and Bovidae. Our results substantiate that chromosomes 1-5 and 11 of Chinese muntjac originated through exclusive centromere-to-telomere fusions of ancestral acrocentric chromosomes.
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Affiliation(s)
- J Chi
- Key Laboratory of Cellular and Molecular Evolution, Kunming Institute of Zoology, the Chinese Academy of Sciences, Kunming, PR. China
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Lu DY, Chi J, Lin LP, Huang M, Xu B, Ding J. Effect of Anti-Cancer Drugs on the Binding of 125I-Fibrinogen to Two Leukaemia Cell Lines In Vitro. J Int Med Res 2004; 32:488-91. [PMID: 15458280 DOI: 10.1177/147323000403200505] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 11/15/2022] Open
Abstract
Anti-cancer drugs may be able to inhibit tumour growth and metastasis by blocking fibrinogen- and/or fibrin-related pathways. To test this hypothesis, the effect of various anti-neoplastic drugs on the binding of 125I-Fibrinogen to two leukaemia cell lines, HL60 and P388, was investigated. All the drugs tested inhibited the binding of fibrinogen to leukaemia cells. This effect was particularly marked for drugs that act as inhibitors of protein synthesis. Since these anti-neoplastic drugs do not have anti-coagulant actions, these results provide evidence for the potential of targeting tumour fibrinogen as a new form of cancer chemotherapy.
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Affiliation(s)
- D Y Lu
- School of Life Sciences, Shanghai University, Shanghai, People's Republic of China.
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Chi J, Jayewardene A, Stone J, Gambertoglio JG, Aweeka FT. A direct determination of thymidine triphosphate concentrations without dephosphorylation in peripheral blood mononuclear cells by LC/MS/MS. J Pharm Biomed Anal 2001; 26:829-36. [PMID: 11600294 DOI: 10.1016/s0731-7085(01)00469-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [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: 10/18/2022]
Abstract
A rapid, sensitive and specific analytical method with minimal sample preparation for the measurement of thymidine triphosphate (TTP) in peripheral blood mononuclear cells (PBMC) by LC/MS/MS has been developed. PBMC were separated from whole blood or buffy coat. The analyte and internal standard were extracted from PBMC with 70% methanol (pH 7.2). These extracts after centrifugation were directly injected onto LC/MS/MS without need for any further sample preparation. The calibration curve was linear over the range 0.8-800 ng/ml. Mean inter- and intra-assay coefficients of variation (CVs) over the range of the standard curve were less than 10%. The overall recovery of TTP was 103.5%.
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Affiliation(s)
- J Chi
- Department of Clinical Pharmacy, Drug Research Unit, School of Pharmacy, University of California, San Francisco, CA 94143-0622, USA
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Chi J, Johnson M, Harkness M. Age changes in orthodontic treatment need: a longitudinal study of 10- and 13-year-old children, using the Dental Aesthetic Index. Aust Orthod J 2000; 16:150-6. [PMID: 12476498] [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: 02/28/2023]
Abstract
The Dental Aesthetic Index (DAI) was used to assess the prevalence of unmet orthodontic treatment need in 150 13-year-old schoolchildren in Dunedin, New Zealand, and to compare the findings with those obtained in the same children at 10 years of age. Fewer 13-year-olds (27%) had a "mandatory" need of orthodontic treatment than when they were 10 years old (33%), 20% had "no/little" need for orthodontic treatment, 33% had an "elective" need for treatment and 20% had a "desirable" need for treatment. The fall in DAI scores is attributed to over-sensitivity of the Index to mixed dentition traits. When the individual scores were analysed, only 7% of the 10-year-olds were given the same scores as when they were 13 years old, 52% were given higher scores and 41% were given lower scores. This disagreement between scores was masked to a limited extent by the DAI categories: 49% of the 10-year-olds were assigned to the same DAI category at 13 years of age, 20% to a greater treatment-need category and approximately 30% to a lower treatment-need category. The DAI, in common with other malocclusion indices, is unreliable over time because it is affected by developmental changes in the occlusal traits measured.
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