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Zhang J, Wang Z, Wang J, Zhuo X, Yu L, Han T, Song Y, Gai C, Zou Y, Meng Q, Chai X, Zhao Q. Total synthesis and structural modification of the dibenzylbutane lignan LCA as a potent anti-inflammatory agent against LPS-induced acute lung injury. Eur J Med Chem 2024; 268:116272. [PMID: 38402749 DOI: 10.1016/j.ejmech.2024.116272] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
Acute lung injury (ALI) is a serious public health problem associated with high morbidity and mortality. However, few efficacious drugs are clinically available. Inhibition of proinflammatory cytokines is considered to be a promising method for the treatment of inflammatory diseases. Herein, the total synthesis of a dibenzylbutane lignan, 9'-O-di-(E)-feruloyl-meso-5,5'-dimethoxysecoisolariciresinol (LCA), was completed. A series of LCA derivatives were designed and synthesized, and their anti-inflammatory activities were evaluated. Derivative 14r significantly inhibited LPS-induced expression of NO and the proinflammatory cytokines TNF-α, IL-6, and IL-1β in RAW 264.7 cells and inhibited activation of the NF-κB pathway. Compound 14r reduced LPS-induced pulmonary inflammation and ALI in mice. It showed significant protective effects against LPS-induced ALI in mice and significantly reduced levels of proinflammatory cytokines in serum and bronchoalveolar lavage fluid. The ratio of wet weight to dry weight of lung tissue was normalized by compound 14r, which was consistent with suppression of neutrophil infiltration and production of proinflammatory cytokines. Compound 14r reduced the mRNA expression of some proinflammatory cytokines, improved histopathologic changes, and reduced macrophage infiltration in lung tissues. Collectively, these results suggest a new series of LCA derivatives that could be promising anti-inflammatory agents for ALI treatment.
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Affiliation(s)
- Juan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Zhen Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China
| | - Jing Wang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Xiaobin Zhuo
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Luyao Yu
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Ting Han
- Department of Pharmacognosy, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yan Song
- Navy Medical Center, Second Military Medical University, Shanghai, 200433, China
| | - Conghao Gai
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Yan Zou
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai, 264005, China.
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
| | - Qingjie Zhao
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, 200433, China.
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Chen S, Zhang K, Zou J, Yu Z, Gai C, Chai X, Zhao Q, Zou Y. Further structural optimization and SAR study of sungsanpin derivatives as cell-invasion inhibitors. Bioorg Med Chem Lett 2024; 99:129627. [PMID: 38272189 DOI: 10.1016/j.bmcl.2024.129627] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/16/2024] [Accepted: 01/21/2024] [Indexed: 01/27/2024]
Abstract
Metastasis is one of the major causes of death in patients with cancer, and cell invasion plays a fundamental part in this process. Because of the absence of efficacious treatments, caring for these patients is challenging. Recently, we optimized the structure of the naturally occurring lasso peptide sungsanpin. We identified two peptides, octapeptide S3 and cyclic peptide S4, which inhibited invasion into A549 cells effectively. We undertook an alanine scan of S3 to explore the structure-activity relationship. The linear octapeptide S3-4 and cyclic peptide S4-1 exhibited improved inhibition of invasion into A549 cells. We modified S3-4 to obtain S3-4K, which displayed much higher inhibitory activity against invasion into A549 cells than S3-4. Of all peptides tested, S4-1 upregulated significantly mRNA of tissue inhibitor matrix metalloproteinase TIMP-1 and TIMP-2.
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Affiliation(s)
- Shuai Chen
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China
| | - Kai Zhang
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China
| | - Jihua Zou
- Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province 350122, PR China
| | - Zhou Yu
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China
| | - Conghao Gai
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China
| | - Xiaoyun Chai
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China
| | - Qingjie Zhao
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China.
| | - Yan Zou
- School of Pharmacy, Naval Medical University, Shanghai 200433, PR China.
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Zhang J, Wang Z, Gai C, Yang F, Yun X, Jiang B, Zou Y, Meng Q, Zhao Q, Chai X. Design, synthesis, evaluation and optimization of novel azole analogues as potent antifungal agents. Bioorg Med Chem 2024; 97:117543. [PMID: 38071944 DOI: 10.1016/j.bmc.2023.117543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 11/13/2023] [Accepted: 12/04/2023] [Indexed: 12/30/2023]
Abstract
In order to develop antifungal drugs, a series of novel azole analogues were designed and synthesized based on our previous work. Most of the target compounds had broad-spectrum antifungal activity, which showed excellent to moderate inhibitory activity against the tested strains, except A. fum 0504656. Among these, compounds B3, B7, B8, B11, B12 and E9 showed excellent activity against C. alb Y0109 and C. alb SC5314 (with the MIC80: 0.0156 ug/mL). In addition, compound B3 showed the best inhibitory activity against fluconazole-resistant strains C. alb 901 and C. alb 904, and had low toxicity against NIH/3T3 cells at the effective MIC range against fungi. Structure-activity relationship and docking studies of the derivatives suggest that the presence of the 2-fluoro-4-hydroxyphenyl and 1,2,3-triazole group enhance the antifungal activity of the compounds, which may be related to the interaction of the key groups with the amino acids surrounding the target enzyme.
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Affiliation(s)
- Juan Zhang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Zhen Wang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Conghao Gai
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Fan Yang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Xiaoqing Yun
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Boye Jiang
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yan Zou
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
| | - Qingjie Zhao
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Xiaoyun Chai
- School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Ke Y, Zhang T, Xu J, Chai X. How social connectedness contributes to life satisfaction among Chinese nurses: Testing potential moderated mediation pathways. Int Nurs Rev 2023; 70:315-321. [PMID: 37071893 DOI: 10.1111/inr.12845] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 03/24/2023] [Indexed: 04/20/2023]
Abstract
AIMS The purpose of this study was to identify the mediating and moderating mechanisms by which social connectedness predicts life satisfaction among Chinese nurses. BACKGROUND Previous researchers have primarily focused on sociodemographic and occupational domain risk factors for nurses' life satisfaction with relatively little insight into facilitative and protective factors and underlying psychological mechanisms. METHODS We investigated 459 Chinese nurses' social connectedness, work-family enrichment, self-concept clarity, and life satisfaction via a cross-sectional design. We explored the underlying predictive mechanisms among these variables by creating a moderated mediation model. We followed STROBE checklist. RESULTS Work-family enrichment played a mediating role in understanding the positive effects of social connectedness on nurses' life satisfaction. In addition, the moderating effect of self-concept clarity was manifested itself in the association between work-family enrichment and life satisfaction. DISCUSSION AND CONCLUSION Interpersonal asset (social connectedness) and the positive aspect of the work-family interface (work-family enrichment) were significant contributors to nurses' life satisfaction. In particular, high self-concept clarity can enhance the beneficial effect of work-family enrichment on life satisfaction. IMPLICATIONS FOR NURSING POLICY AND PRACTICE Strengthening social connectedness, promoting synergy in work-family roles, and maintaining a clarity of self-concept are important intervention pathways to enhance the health and well-being of nurses.
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Affiliation(s)
- Yuye Ke
- Center of Health Administration and Development Studies, Hubei University of Medicine, Shiyan, China
- School of Nursing, Hubei University of Medicine, Shiyan, China
| | - Taotao Zhang
- Center of Health Administration and Development Studies, Hubei University of Medicine, Shiyan, China
- School of Nursing, Hubei University of Medicine, Shiyan, China
| | - Jianghua Xu
- Center of Health Administration and Development Studies, Hubei University of Medicine, Shiyan, China
- School of Nursing, Hubei University of Medicine, Shiyan, China
| | - Xiaoyun Chai
- Center of Health Administration and Development Studies, Hubei University of Medicine, Shiyan, China
- Department of Applied Psychology, Hubei University of Medicine, Shiyan, China
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Chai X, Xiong P, Lin D. Trajectories of positive youth development and promotive factors among adolescents during the transition to high school in China. J Res Adolesc 2023; 33:564-574. [PMID: 36588193 DOI: 10.1111/jora.12826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 10/16/2022] [Accepted: 12/09/2022] [Indexed: 05/25/2023]
Abstract
Within the framework of positive youth development (PYD) and life course theory, this study was designed to examine patterns of PYD and promotive factors over the first semester of Chinese high school with a sample of 480 students (boys, 43.96%). The growth mixture model identified four trajectories of PYD, labeled high start-fast decreasing, high start-low decreasing, low start-low increasing, and mid-persistent. Results also showed that membership in a PYD trajectory is significantly related to three promotive factors: parental involvement, teacher involvement, and intentional self-regulation. These findings have important theoretical and practical insights for a deeper understanding of the underlying mechanisms of positive development in adolescents following the critical period surrounding the transition to high school.
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Affiliation(s)
- Xiaoyun Chai
- Center of Health Administration and Development Studies, Hubei University of Medicine, Shiyan, China
- Department of Applied Psychology, Hubei University of Medicine, Shiyan, China
| | - Peng Xiong
- Department of Public Health and Preventive Medicine, Jinan University, Guangzhou, China
| | - Danhua Lin
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
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Li A, Li X, Zou J, Zhuo X, Chen S, Chai X, Gai C, Xu W, Zhao Q, Zou Y. SOS1-inspired hydrocarbon-stapled peptide as a pan-Ras inhibitor. Bioorg Chem 2023; 135:106500. [PMID: 37003134 DOI: 10.1016/j.bioorg.2023.106500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 04/03/2023]
Abstract
Blocking the interaction between Ras and Son of Sevenless homolog 1 (SOS1) has been an attractive therapeutic strategy for treating cancers involving oncogenic Ras mutations. K-Ras mutation is the most common in Ras-driven cancers, accounting for 86%, with N-Ras mutation and H-Ras mutation accounting for 11% and 3%, respectively. Here, we report the design and synthesis of a series of hydrocarbon-stapled peptides to mimic the alpha-helix of SOS1 as pan-Ras inhibitors. Among these stapled peptides, SSOSH-5 was identified to maintain a well-constrained alpha-helical structure and bind to H-Ras with high affinity. SSOSH-5 was furthermore validated to bind with Ras similarly to the parent linear peptide through structural modeling analysis. This optimized stapled peptide was proven to be capable of effectively inhibiting the proliferation of pan-Ras-mutated cancer cells and inducing apoptosis in a dose-dependent manner by modulating downstream kinase signaling. Of note, SSOSH-5 exhibited a high capability of crossing cell membranes and strong proteolytic resistance. We demonstrated that the peptide stapling strategy is a feasible approach for developing peptide-based pan-Ras inhibitors. Furthermore, we expect that SSOSH-5 can be further characterized and optimized for the treatment of Ras-driven cancers.
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Affiliation(s)
- Anpeng Li
- School of Pharmacy, Naval Medical University, Shanghai, PR China; 92805 Military Hospital, Qingdao, PR China
| | - Xiang Li
- School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Jihua Zou
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, PR China
| | - Xiaobin Zhuo
- School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Shuai Chen
- School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Xiaoyun Chai
- School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Conghao Gai
- School of Pharmacy, Naval Medical University, Shanghai, PR China
| | - Weiheng Xu
- School of Pharmacy, Naval Medical University, Shanghai, PR China.
| | - Qingjie Zhao
- School of Pharmacy, Naval Medical University, Shanghai, PR China.
| | - Yan Zou
- School of Pharmacy, Naval Medical University, Shanghai, PR China.
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Li A, Zou J, Zhuo X, Chen S, Chai X, Gai C, Li X, Zhao Q, Zou Y. Rational Optimizations of the Marine-Derived Peptide Sungsanpin as Novel Inhibitors of Cell Invasion. Chem Biodivers 2023; 20:e202201221. [PMID: 36651671 DOI: 10.1002/cbdv.202201221] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/19/2023]
Abstract
Cancer metastasis, including cell invasion, is a major cause of poor clinical outcomes and death in numerous cancer patients. In recent years, many efforts have been made to develop potent therapeutic molecules from naturally derived peptides. Sungsanpin is a naturally derived lasso peptide that inhibits A549 cell invasion. We aimed to evaluate the potential of sungsanpin derivatives as candidates for anti-invasion drugs. We synthesized an analog of sungsanpin (Sun A) using a solid-phase peptide synthesis strategy (SPPS) and further modified its structure to improve its anti-invasion activity. All peptides were tested for their proliferative inhibition and anti-invasion activities in the A549 cell lines. Octapeptide S3 and cyclooctapeptide S4 upregulated the expression of TIMP-1 and TIMP-2 mRNA effectively and thus improved the inhibitory effect on the invasion of A549 cells. The two peptides can inhibit the invasion of A549 cells by up to 60 %, suggesting that they have potential as lead molecules for the development of peptide inhibitors.
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Affiliation(s)
- Anpeng Li
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Jihua Zou
- Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian Province 350122, China
| | - Xiaobin Zhuo
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Shuai Chen
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Xiaoyun Chai
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Conghao Gai
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Xiang Li
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Qingjie Zhao
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
| | - Yan Zou
- School of Pharmacy, Naval Medical University, Shanghai, 200433, China
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Wang Z, Zhao F, Wei P, Chai X, Hou G, Meng Q. Phytochemistry, health benefits, and food applications of sea buckthorn ( Hippophae rhamnoides L.): A comprehensive review. Front Nutr 2022; 9:1036295. [PMID: 36562043 PMCID: PMC9763470 DOI: 10.3389/fnut.2022.1036295] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022] Open
Abstract
Sea buckthorn (Hippophae rhamnoides L.), an ancient miraculous plant, is of great interest because of its tenacity, richness in nutritional active substances, and biological activity. Sea buckthorn is a deciduous shrub or tree of the genus Hippophae in the family Elaeagnaceae. It is a pioneer tree species for soil improvement, wind and sand control, and soil and water conservation. Sea buckthorn contains many nutritional active components, such as vitamins, carotenoids, polyphenols, fatty acids, and phytosterols. Moreover, sea buckthorn has many health benefits, such as antioxidant, anticancer, anti-hyperlipidemic, anti-obesity, anti-inflammatory, antimicrobial, antiviral, dermatological, neuroprotective, and hepatoprotective activities. Sea buckthorn not only has great medicinal and therapeutic potential, but also is a promising economic plant. The potential of sea buckthorn in the human food industry has attracted the research interest of researchers and producers. The present review mainly summarizes the phytochemistry, nutrients, health benefits, and food applications of sea buckthorn. Overall, sea buckthorn is a dietary source of bioactive ingredients with the potential to be developed into functional foods or dietary supplements for the prevention and treatment of certain chronic diseases, which deserves further research.
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Affiliation(s)
- Zhen Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, China
| | - Fenglan Zhao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, China
| | - Panpan Wei
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai, China,*Correspondence: Xiaoyun Chai,
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai, China,Guige Hou,
| | - Qingguo Meng
- Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Yantai University, Yantai, China,Qingguo Meng,
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Xie F, Hao Y, Bao J, Liu J, Liu Y, Wang R, Chi X, Chai X, Wang T, Yu S, Jin Y, Yan L, Zhang D, Ni T. Design, synthesis, and in vitro evaluation of novel antifungal triazoles containing substituted 1,2,3-triazole-methoxyl side chains. Bioorg Chem 2022; 129:106216. [DOI: 10.1016/j.bioorg.2022.106216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/07/2022] [Accepted: 10/16/2022] [Indexed: 11/15/2022]
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Liao J, Zhuo X, Pan B, Zou Y, Chai X, Wu Q, Yu S, Pan W, Zhao Q. Synthesis and preliminary immunologic properties of di-/trisaccharide-conjugates related to Bacillus anthracis. Bioorg Med Chem Lett 2022; 76:128986. [PMID: 36113670 DOI: 10.1016/j.bmcl.2022.128986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Revised: 09/04/2022] [Accepted: 09/09/2022] [Indexed: 11/22/2022]
Abstract
Herein, the di- and trisaccharide mimics of the hexasaccharide antigen related to Bacillus anthracis were synthesized and covalently coupled with carrier proteins, such as keyhole limpet hemocyanin (KLH) and bovine serum albumin (BSA), to form the corresponding glycoconjugates 1-6. 2,3,4,6-Tetra-O-benzyl thioglycoside and 2-deoxyl-2-phthalylamino-3,4,6-tri-O-benzyl thioglycoside were applied as glycosyl donors to guarantee α or β-configuration of the newly formed glycosidic bonds. Glutaraldehyde was used as a homobifunctional cross-linker for high-efficiency coupling. The synthetic KLH-glycoconjugates 2, 4 and 6 were also used to vaccinate female Balb/c mice and the preliminary results of ELISA uncovered that all three KLH-conjugates could induce immune responses and generate oligosaccharide-specific total IgG antibodies. The trisaccharide 8, the glycosyl part of glycoconjugate 4, is of great immunogenicity.
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Affiliation(s)
- Jun Liao
- Department of Biochemistry and Molecular Biology, College of Basic Medical Sciences, Second Military Medical University, Shanghai 200433, China; School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xiaobin Zhuo
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Bo Pan
- Department of Dermatology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, China
| | - Yan Zou
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xiaoyun Chai
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Qiuye Wu
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Shichong Yu
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Weihua Pan
- Department of Dermatology, Changzheng Hospital, Second Military Medical University, 415 Fengyang Road, Shanghai 200003, China.
| | - Qingjie Zhao
- School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
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Zhang S, Chai X, Hou G, Zhao F, Meng Q. Platycodon grandiflorum (Jacq.) A. DC.: A review of phytochemistry, pharmacology, toxicology and traditional use. Phytomedicine 2022; 106:154422. [PMID: 36087526 DOI: 10.1016/j.phymed.2022.154422] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 07/01/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND The traditional Chinese medicine Platycodon grandiflorum (Jacq.) A. DC. (PG, balloon flower) has medicinal and culinary value. It consists of a variety of chemical components including triterpenoid saponins, polysaccharides, flavonoids, polyphenols, polyethylene glycols, volatile oils and mineral components, which have medicinal and edible value. PURPOSE The ultimate goal of this review is to summarize the phytochemistry, pharmacological activities, safety and uses of PG in local and traditional medicine. METHODS A comprehensive search of published literature up to March 2022 was conducted using the PubMed, China Knowledge Network and Web of Science databases to identify original research related to PG, its active ingredients and pharmacological activities. RESULTS Triterpene saponins are the primary bioactive compounds of PG. To date, 76 triterpene saponin compounds have been isolated and identified from PG. In addition, there are other biological components, such as flavonoids, polyacetylene and phenolic acids. These extracts possess antitussive, immunostimulatory, anti-inflammatory, antioxidant, antitumor, antiobesity, antidepressant, and cardiovascular system activities. The mechanisms of expression of these pharmacological effects include inhibition of the expression of proteins such as MDM and p53, inhibition of the activation of enzymes, such as AKT, the secretion of inflammatory factors, such as IFN-γ, TNF-α, IL-2 and IL-1β, and activation of the AMPK pathway. CONCLUSION This review summarizes the chemical composition, pharmacological activities, molecular mechanism, toxicity and uses of PG in local and traditional medicine over the last 12 years. PG contains a wide range of chemical components, among which triterpene saponins, especially platycoside D (PD), play a strong role in pharmacological activity, representing a natural phytomedicine with low toxicity that has applications in food, animal feed and cosmetics. Therefore, PG has value for exploitation and is an excellent choice for treating various diseases.
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Affiliation(s)
- Shengnan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China.
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Fenglan Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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12
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Li X, Liao J, Zhuo X, Wang H, Chai X, Zou Y, Zhao Q. Enantioselective [3+2] cycloadditions of terminal allenoates with β-sulfonyl-α,β-unsaturated ketones. Green Synthesis and Catalysis 2022. [DOI: 10.1016/j.gresc.2022.10.015] [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: 11/06/2022] Open
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13
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Ye LL, Zhang JW, Yan RJ, Xiang L, Hu YL, Cui J, Tang YX, Chai X, Gao C, Xiao L, Jiang Y, Zhang J, Yang Y. [Association between the awareness of Nutrition Facts Panel and prepackaged food purchase behavior among residents]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1478-1483. [PMID: 36274617 DOI: 10.3760/cma.j.cn112150-20211101-01006] [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: 06/16/2023]
Abstract
Objective: To explore the association between the cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents in six provinces in China. Methods: Using a multi-stage sampling method, 3 002 adults aged 18-70 were selected from the western region (Sichuan), eastern region (Guangdong, Jiangsu, Beijing), central region (Henan), and northeastern region (Heilongjiang) of China from July 2020 to March 2021. Socio-demographic characteristics of participants and their cognition of Nutrition Facts Panel and prepackaged food purchase behavior were collected through questionnaire. A multivariate binary logistic regression model was used to analyze the association between cognition of Nutrition Facts Panel and prepackaged food purchase behavior. Results: The age of 3 002 subjects was (42.3±13.4) years, among which 63.8% (1 914) were female, 66.7% knew the Nutrition Facts Panel, 49.8% would read it when purchasing, 30.7% could understand it, and 56.6% (1 699) bought prepackaged food more than once a week. The results of multivariate analysis showed that after adjusting for relevant confounding factors, compared with the participants knowing but not reading the Nutrition Facts Panel, the group knowing and reading was more likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Compared with the participants reading but not understanding the Nutrition Facts Panel, the group reading and understanding was less likely to buy 11 types of prepackaged food at least once a week (all P<0.05). Conclusion: There was a correlation between cognition of Nutrition Facts Panel and prepackaged food purchase behavior among residents.
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Affiliation(s)
- L L Ye
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - J W Zhang
- Shijiazhuang Municipal Bureau of Statistics, Shijiazhuang 050011, China
| | - R J Yan
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - L Xiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Y L Hu
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - J Cui
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Y X Tang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - X Chai
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - C Gao
- National Institute for Nutrition and Health, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - L Xiao
- Chinese Health Education Network, Beijing 100020, China
| | - Y Jiang
- Chinese Nutrition Society, Beijing 100022, China
| | - Juan Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Science and Peking Union Medical College, Beijing 10005, China
| | - Yuexin Yang
- Chinese Nutrition Society, Beijing 100022, China
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14
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Wei P, Zhao F, Wang Z, Wang Q, Chai X, Hou G, Meng Q. Sesame ( Sesamum indicum L.): A Comprehensive Review of Nutritional Value, Phytochemical Composition, Health Benefits, Development of Food, and Industrial Applications. Nutrients 2022; 14:nu14194079. [PMID: 36235731 PMCID: PMC9573514 DOI: 10.3390/nu14194079] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/21/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Sesame (Sesamum indicum L.), of the Pedaliaceae family, is one of the first oil crops used in humans. It is widely grown and has a mellow flavor and high nutritional value, making it very popular in the diet. Sesame seeds are rich in protein and lipids and have many health benefits. A number of in vitro and in vivo studies and clinical trials have found sesame seeds to be rich in lignan-like active ingredients. They have antioxidant, cholesterol reduction, blood lipid regulation, liver and kidney protection, cardiovascular system protection, anti-inflammatory, anti-tumor, and other effects, which have great benefits to human health. In addition, the aqueous extract of sesame has been shown to be safe for animals. As an important medicinal and edible homologous food, sesame is used in various aspects of daily life such as food, feed, and cosmetics. The health food applications of sesame are increasing. This paper reviews the progress of research on the nutritional value, chemical composition, pharmacological effects, and processing uses of sesame to support the further development of more functionalities of sesame.
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Affiliation(s)
- Panpan Wei
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Ministry of Education, Yantai University, Yantai 264005, China
| | - Fenglan Zhao
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Ministry of Education, Yantai University, Yantai 264005, China
| | - Zhen Wang
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Ministry of Education, Yantai University, Yantai 264005, China
| | - Qibao Wang
- School of Biological Science, Jining Medical University, Rizhao 276800, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China
- Correspondence: (X.C.); (G.H.); (Q.M.)
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
- Correspondence: (X.C.); (G.H.); (Q.M.)
| | - Qingguo Meng
- Key Laboratory of Molecular Pharmacology and Drug Evaluation, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, School of Pharmacy, Ministry of Education, Yantai University, Yantai 264005, China
- Correspondence: (X.C.); (G.H.); (Q.M.)
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15
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Zhang J, Chai X, Zhao F, Hou G, Meng Q. Food Applications and Potential Health Benefits of Hawthorn. Foods 2022; 11:foods11182861. [PMID: 36140986 PMCID: PMC9498108 DOI: 10.3390/foods11182861] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Hawthorn (Crataegus) is a plant of the Rosaceae family and is widely grown throughout the world as one of the medicinal and edible plants, known as the “nutritious fruit” due to its richness in bioactive substances. Preparations derived from it are used in the formulation of dietary supplements, functional foods, and pharmaceutical products. Rich in amino acids, minerals, pectin, vitamin C, chlorogenic acid, epicatechol, and choline, hawthorn has a high therapeutic and health value. Many studies have shown that hawthorn has antioxidant, anti-inflammatory, anticancer, anti-cardiovascular disease, and digestive enhancing properties. This is related to its bioactive components such as polyphenols (chlorogenic acid, proanthocyanidin B2, epicatechin), flavonoids (proanthocyanidins, mucoxanthin, quercetin, rutin), and pentacyclic triterpenoids (ursolic acid, hawthornic acid, oleanolic acid), which are also its main chemical constituents. This paper briefly reviews the chemical composition, nutritional value, food applications, and the important biological and pharmacological activities of hawthorn. This will contribute to the development of functional foods or nutraceuticals from hawthorn.
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Affiliation(s)
- Juan Zhang
- Department of Key Laboratory of Molecular Pharmacology and Drug Evaluation, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China
- Correspondence: (X.C.); (Q.M.)
| | - Fenglan Zhao
- Department of Key Laboratory of Molecular Pharmacology and Drug Evaluation, School of Pharmacy, Yantai University, Yantai 264005, China
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Qingguo Meng
- Department of Key Laboratory of Molecular Pharmacology and Drug Evaluation, School of Pharmacy, Yantai University, Yantai 264005, China
- Correspondence: (X.C.); (Q.M.)
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16
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Ma G, Chai X, Hou G, Zhao F, Meng Q. Phytochemistry, bioactivities and future prospects of mulberry leaves: A review. Food Chem 2022; 372:131335. [PMID: 34818743 DOI: 10.1016/j.foodchem.2021.131335] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [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: 05/26/2021] [Revised: 09/16/2021] [Accepted: 10/02/2021] [Indexed: 12/30/2022]
Abstract
Mulberry leaves (MLs) have been used traditionally to raise silkworms and as herbs and herbal drinks. In vitro and in vivo studies as well as some clinical trials provide some evidence of health benefits, mostly for ML extracts. ML extracts showed antioxidant, hypoglycemic, anticholesterol (affecting lipid metabolism), antiobesity, anti-inflammatory, anticancer activities, and so on. These might be linked to strong antioxidant activities, inhibition of α-glucosidase and α-amylase, reduction of foam cell formation, inhibition of fat formation, decrease of NF-κB activity, and the promotion or induction of apoptosis. Phenolic constituents, especially flavonoids, phenolic acids and alkaloids, are likely to contribute to the reported effects. The phytochemistry and pharmacology of MLs confer the traditional and current uses as medicine, food, fodder, and cosmetics. This paper reviews the economic value, chemical composition and pharmacology of MLs to provide a reference for the development and utilization of MLs.
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Affiliation(s)
- Guangqun Ma
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Naval Medical University, Shanghai 200433, China.
| | - Guige Hou
- School of Pharmacy, Binzhou Medical University, Yantai 264003, China
| | - Fenglan Zhao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Qingguo Meng
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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17
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Huang L, Bai J, Zong R, Zhou J, Zuo Z, Chai X, Wang Z, An J, Zhuo Y, Boada F, Yu X, Ling Z, Qu B, Pan L, Zhang Z. Sodium MRI at 7T for Early Response Evaluation of Intracranial Tumors following Stereotactic Radiotherapy Using the CyberKnife. AJNR Am J Neuroradiol 2022; 43:181-187. [PMID: 35121584 PMCID: PMC8985677 DOI: 10.3174/ajnr.a7404] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 11/05/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND AND PURPOSE Conventionally, early treatment response to stereotactic radiotherapy in intracranial tumors is often determined by structural MR imaging. Tissue sodium concentration is altered by cellular integrity and energy status in cells. In this study, we aimed to investigate the feasibility of sodium MR imaging at 7T for the preliminary evaluation of radiotherapeutic efficacy for intracranial tumors. MATERIALS AND METHODS Data were collected from 16 patients (12 men and 4 women, 24-75 years of age) with 22 intracranial tumors who were treated with stereotactic radiation therapy using CyberKnife at our institution between December 1, 2016, and August 15, 2019. Sodium MR imaging was performed at 7T before and 48 hours, 1 week, and 1 month after CyberKnife radiation therapy. Tissue sodium concentration (TSC) was calculated and analyzed based on manually labeled regions of tumors. RESULTS Ultra-high-field sodium MR imaging clearly showed the intratumoral signal, which is significantly higher than that of normal tissue (t = 5.250, P <.001)., but the edema zone has some influence. The average TSC ratios of tumor to CSF in the 22 tumors, contralateral normal tissues, edema zones, frontal cortex, and frontal white matter were 0.66 (range, 0.23-1.5), 0.30 (range, 0.15-0.43), 0.58 (range, 0.25-1.21), 0.25 (range, 0.17-0.42), and 0.30 (range, 0.19-0.49), respectively. A total of 12 tumors in 8 patients were scanned at 48 hours, 1 week, and 1 month after treatment. The average TSC at 48 hours after treatment was 0.06 higher than that before treatment and began to decrease at 1 week. The TSC ratios of 10 continued to decline and 2 tumors increased at 1 month, respectively. Tumor volume decreased by 2.4%-99% after 3 months. CONCLUSIONS Changes in the TSC can be quantified by sodium MR imaging at 7T and used to detect radiobiologic alterations in intracranial tumors at early time points after CyberKnife radiation therapy.
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Affiliation(s)
- L. Huang
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.),Department of Neurosurgery (L.H.), The Hospital of 81st Group Army PLA, Zhangjiakou, China
| | - J. Bai
- Radiation Oncology (J.B., B.Q.), The First Medical Center of PLA General Hospital, Beijing, China
| | - R. Zong
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.)
| | - J. Zhou
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.)
| | - Z. Zuo
- State Key Laboratory of Brain and Cognitive Science (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Beijing, China,CAS Center for Excellence in Brain Science and Intelligence Technology (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Chinese Academy of Sciences, Beijing, China
| | - X. Chai
- State Key Laboratory of Brain and Cognitive Science (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Beijing, China,CAS Center for Excellence in Brain Science and Intelligence Technology (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Chinese Academy of Sciences, Beijing, China
| | - Z. Wang
- State Key Laboratory of Brain and Cognitive Science (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Beijing, China,CAS Center for Excellence in Brain Science and Intelligence Technology (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Chinese Academy of Sciences, Beijing, China
| | - J. An
- Siemens Shenzhen Magnetic Resonance Ltd (J.A.), Shenzhen, China
| | - Y. Zhuo
- State Key Laboratory of Brain and Cognitive Science (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Beijing, China,CAS Center for Excellence in Brain Science and Intelligence Technology (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Chinese Academy of Sciences, Beijing, China
| | - F. Boada
- Department of Radiology (F.B.), Center for Advanced Imaging Innovation and Research, New York University Grossman School of Medicine, New York, New York
| | - X. Yu
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.)
| | - Z. Ling
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.)
| | - B. Qu
- Radiation Oncology (J.B., B.Q.), The First Medical Center of PLA General Hospital, Beijing, China
| | - L. Pan
- From the Departments of Neurosurgery (L.H., R.Z., J.Z., X.Y., Z.L., L.P.)
| | - Z. Zhang
- State Key Laboratory of Brain and Cognitive Science (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Institute of Biophysics, Chinese Academy of Sciences, Beijing, China,University of Chinese Academy of Sciences (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Beijing, China,CAS Center for Excellence in Brain Science and Intelligence Technology (Z. Zou., X.C., Z.W., Y. Z., Z. Zhang.), Chinese Academy of Sciences, Beijing, China
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18
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Symonds LK, Jenkins I, Linden HM, Kurland B, Gralow JR, Gadi VK, Ellis GK, Wu Q, Rodler E, Chalasani P, Chai X, Riedel J, Stopeck A, Brown-Glaberman U, Specht JM. A Phase II Study Evaluating the Safety and Efficacy of Sunitinib Malate in Combination With Weekly Paclitaxel Followed by Doxorubicin and Daily Oral Cyclophosphamide Plus G-CSF as Neoadjuvant Chemotherapy for Locally Advanced or Inflammatory Breast Cancer. Clin Breast Cancer 2022; 22:32-42. [PMID: 34158245 PMCID: PMC8611115 DOI: 10.1016/j.clbc.2021.05.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/01/2021] [Accepted: 05/17/2021] [Indexed: 01/03/2023]
Abstract
INTRODUCTION Neoadjuvant chemotherapy is standard treatment for locally advanced breast cancer (LABC) or inflammatory breast cancer (IBC). We hypothesized that adding sunitinib, a tyrosine kinase inhibitor with antitumor and antiangiogenic activity, to an anthracycline and taxane regimen would improve pathologic complete response (pCR) rates to a prespecified endpoint of 45% in patients with HER2-negative LABC or IBC. METHODS We conducted a multicenter, phase II trial of neoadjuvant sunitinib with paclitaxel (S+T) followed by doxorubicin and cyclophosphamide plus G-CSF for patients with HER2-negative LABC or IBC. Patients received sunitinib 25 mg PO daily with paclitaxel 80 mg/m2 IV weekly ×12 followed by doxorubicin 24 mg/m2 IV weekly + cyclophosphamide 60 mg/m2 PO daily with G-CSF support. Response was evaluated using pCR in the breast and the CPS + EG score (clinical-pathologic scoring + estrogen receptor [ER] and grade). RESULTS Seventy patients enrolled, and 66 were evaluable for efficacy. Eighteen patients (27%) had pCR in the breast (10 had ER+ disease and 8 had triple-negative disease). When defining response as pCR and/or CPS + EG score ≤2, 31 (47%) were responders. In pateints with ER positive disease, 23 (64%) were responders. The most common toxicities were cytopenias and fatigue. CONCLUSIONS Neoadjuvant S+T followed by AC+G-CSF was safe and tolerable in LABC and IBC. The study did not meet the prespecified endpoint for pCR; however, 47% were responders using pCR and/or CPS + EG score ≤2. ER positive patients had the highest response rate (64%). The addition of sunitinib to neoadjuvant chemotherapy may provide promising incremental benefit for patients with ER positive LABC.
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Affiliation(s)
- LK Symonds
- Medical Oncology, University of Washington, Seattle, WA
| | - I Jenkins
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - HM Linden
- Medical Oncology, University of Washington, Seattle, WA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - B Kurland
- eResearch Technologies, Inc. (ERT), Pittsburgh, PA
| | - JR Gralow
- Medical Oncology, University of Washington, Seattle, WA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - VK Gadi
- Medical Oncology, University of Illinois Cancer Center, Chicago, IL
| | - GK Ellis
- Medical Oncology, University of Washington, Seattle, WA
| | - Q Wu
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - E Rodler
- Hematology and Oncology, UC Davis, Sacramento, CA
| | - P Chalasani
- Hematology and Oncology, University of Arizona Cancer Center, Tucson, AZ
| | | | - J Riedel
- Clinical Cancer Genetics, Duke Cancer Institute, Durham, NC
| | | | - A Stopeck
- Hematology and Oncology, Stony Brook University, Stonybrook, NY
| | | | - JM Specht
- Medical Oncology, University of Washington, Seattle, WA,Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
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Zhong H, Yang H, Mao Z, Chai X, Li S. Impact of moderate-to-severe psoriasis on quality of life in China: a qualitative study. Health Qual Life Outcomes 2021; 19:271. [PMID: 34952591 PMCID: PMC8709994 DOI: 10.1186/s12955-021-01902-w] [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] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 12/05/2021] [Indexed: 02/03/2023] Open
Abstract
Purpose Psoriasis is a serious health problem. Since limited research has investigated the impact of psoriasis on the quality of life of patients with moderate-to-severe psoriasis, this study aimed to explore this issue. Methods A qualitative study was conducted with 22 psoriasis patients from two cities in Shandong province of eastern China participating in one-to-one semi-structured in-depth interviews. Results Thematic analysis generated five major themes: (1) Symptoms, symptoms management and pain; (2) Functioning and activities of daily living (ADLs); (3) Psychological impact; (4) Social impact; (5) Employment and finances. Conclusion Our study detailed the effects of psoriasis on patients’ symptoms, symptoms management and pain, functioning and activities of daily living (ADLs), psychological impact, social impact, employment and finances. These data can provide a reference for studying the quality of life in patients with psoriasis.
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Affiliation(s)
- Hua Zhong
- Department of Dermatology, Qilu Hospital, Shandong University, Jinan, 250012, China
| | - Huan Yang
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,NHC Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, China.,Center for Health Preference Research, Shandong University, Jinan, 250012, China
| | - Zhuxin Mao
- School of Insurance, Southwestern University of Finance and Economics, Chengdu, 611130, China
| | - Xiaoyun Chai
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China.,NHC Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, China.,Center for Health Preference Research, Shandong University, Jinan, 250012, China
| | - Shunping Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Jinan, 250012, China. .,NHC Key Laboratory of Health Economics and Policy Research (Shandong University), Jinan, 250012, China. .,Center for Health Preference Research, Shandong University, Jinan, 250012, China.
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20
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Liao J, Liao G, Gao Y, Chai X, Wu Q, Zhao Q. Synthesis and Biological Activities of Diosgenin-Triazole Conjugates with a 1,3-Dipolar Cycloaddition Reaction. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03552-2] [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: 11/30/2022]
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21
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Liu L, Wang H, Chai X, Meng Q, Jiang S, Zhao F. Advances in Biocatalytic Synthesis, Pharmacological Activities, Pharmaceutical Preparation and Metabolism of Ginsenoside Rh2. Mini Rev Med Chem 2021; 22:437-448. [PMID: 34517798 DOI: 10.2174/1389557521666210913114631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/30/2020] [Revised: 01/25/2021] [Accepted: 06/22/2021] [Indexed: 11/22/2022]
Abstract
Ginsenoside Rh2 (3β-O-Glc-protopanaxadiol), a trace but characteristic pharmacological component of red ginseng, exhibited versatile pharmacological activities, such as antitumor effects, improved cardiac function and fibrosis, anti-inflammatory effects, antibiosis and excellent medicinal potential. In recent years, increased research has been performed on the biocatalytic synthesis of ginsenoside Rh2. In this paper, advances in the biocatalytic synthesis, pharmacological activities, pharmaceutical preparation and metabolism of ginsenoside Rh2 are reviewed.
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Affiliation(s)
- Li Liu
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, 264005. China
| | - Huiyun Wang
- College of Pharmacy, Jining Medical University, Shandong Province, 276826. China
| | - Xiaoyun Chai
- School of Pharmacy, Naval Medical University, Shanghai, 200433. China
| | - Qingguo Meng
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, 264005. China
| | - Sheng Jiang
- Shandong Wendeng Jizhen American Ginseng Industry Co., Ltd., Shandong Province, 264400. China
| | - Fenglan Zhao
- School of Pharmacy, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Yantai University, Yantai, 264005. China
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22
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Ke Y, Chai X. The life course health development model: a new approach to understanding human health. Zhejiang Da Xue Xue Bao Yi Xue Ban 2021; 50:411-419. [PMID: 34704416 PMCID: PMC8714488 DOI: 10.3724/zdxbyxb-2021-0155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2020] [Accepted: 01/27/2021] [Indexed: 06/13/2023]
Abstract
The life course health development (LCHD) model is a cutting-edge theoretical model for the health science, which moves beyond the previous biomedical and biopsychosocial model. From the perspectives of "process, relationship and system", it recognizes health as a dynamic ability to change over the course of life, and highlights the importance of optimizing individual health trajectories and health promotion. According to LCHD model, we should understand health from the perspective of development, which is characterized by unfolding, complexity, timing, plasticity, thriving and harmony. Health research and practice, therefore, should change ideas from the focus on accurate diagnosis, treatment and etiology previously to full using the relative plasticity of human development to enhance health development ability, enrich health resources and promote the healthy development of physiology, psychology, behavior and culture system; and to achieve a harmonious balance in the different stages of the life course. Based on the LCHD model, it is suggested for our country's health service system (1) to strengthen the health education across the life-span and construct the health promotion model based on the social system; (2) to pay more attention to health promotion and disease prevention in early life; (3) to increase government spending on health promotion and prevention, not just on disease treatment.
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Affiliation(s)
- Yuye Ke
- of Applied Psychology, Hubei University of Medicine, Shiyan 442000, Hubei Province, China
| | - Xiaoyun Chai
- of Applied Psychology, Hubei University of Medicine, Shiyan 442000, Hubei Province, China
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Liu C, Li X, Zhao Z, Chi Y, Cui L, Zhang Q, Ping F, Chai X, Jiang Y, Wang O, Li M, Xing X, Xia W. Iron deficiency plays essential roles in the trigger, treatment, and prognosis of autosomal dominant hypophosphatemic rickets. Osteoporos Int 2021; 32:737-745. [PMID: 32995940 DOI: 10.1007/s00198-020-05649-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/17/2020] [Indexed: 12/19/2022]
Abstract
UNLABELLED By analyzing iron status of 14 ADHR patients, we found that iron deficiency was an important trigger of ADHR. Correcting iron deficiency significantly improved patients' symptoms. Meanwhile, patients' serum phosphate showed positive correlations with iron metabolism parameters and hemoglobin-related parameters, suggesting the necessity of monitoring and correcting the iron status in ADHR. INTRODUCTION Autosomal dominant hypophosphatemic rickets (ADHR) is unique for its incomplete penetrance, variety of disease onsets, and waxing and waning phenotypes. Iron deficiency is a trigger of ADHR. This study aimed to clarify the role of iron deficiency in ADHR. METHODS Data of clinical manifestations and laboratory examinations were collected from patients among eight kindreds with ADHR. Multiple regression and Pearson's correlation tests were performed to test the relationships of serum phosphate levels and other laboratory variables during the patients' follow-ups. RESULTS Among 23 ADHR patients with fibroblast growth factor 23 (FGF23) mutations, 14 patients presented with obvious symptoms. Ten patients had iron deficiency at the onset of ADHR, coinciding with menarche, menorrhagia, pregnancy, and chronic gastrointestinal bleeding. Two patients who did not have their iron status tested presented with symptoms after abortion and pregnancy in one patient each, which suggested that they also had iron deficiency at onset. Patients were treated with ferrous succinate tablets, vitamin C, and neutral phosphate and calcitriol. With correction of the iron status, the patients' symptoms showed notable improvement, with increased serum phosphate levels. Two patients' FGF23 levels also declined to the normal range. There were strong correlations between serum phosphate and serum iron levels (r = 0.7689, p < 0.0001), serum ferritin levels (r = 0.5312, p = 0.002), iron saturation (r = 0.7907, p < 0.0001), and transferrin saturation (r = 0.7875, p < 0.001). We also examined the relationships between serum phosphate levels and hemoglobin-related indices, which were significant (hemoglobin: r = 0.71, p < 0.0001; MCV: r = 0.7589, p < 0.0001; MCH: r = 0.8218, p < 0.0001; and MCHC: r = 0.7751, p < 0.0001). Longitudinal data of six patients' follow-up also showed synchronous changes in serum phosphate with serum iron levels. CONCLUSIONS Iron deficiency plays an important role in triggering ADHR. Monitoring and correcting the iron status are helpful for diagnosing and treating ADHR. Iron metabolism parameters and hemoglobin-related parameters are positively correlated with serum phosphate levels in patients with ADHR and iron deficiency, and these might serve as good indicators of prognosis of ADHR.
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Affiliation(s)
- C Liu
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - X Li
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Z Zhao
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
- Department of Geriatrics, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
| | - Y Chi
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - L Cui
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Q Zhang
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
- Department of Clinical Laboratory, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - F Ping
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - X Chai
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - Y Jiang
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - O Wang
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - M Li
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - X Xing
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China
| | - W Xia
- Department of Endocrinology, NHC Key Laboratory of Endocrinology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing, 100730, China.
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Chai X, Liu Y, Mao Z, Li S. Barriers to medication adherence for rural patients with mental disorders in eastern China: a qualitative study. BMC Psychiatry 2021; 21:141. [PMID: 33685432 PMCID: PMC7941940 DOI: 10.1186/s12888-021-03144-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 02/24/2021] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Mental disorders are destructive and usually require long-term medication, but non-adherence of medication is highly prevalent in patients with mental disorders. Previous studies relating to medication non-adherence were mainly quantitative. Meanwhile, there have been even fewer studies conducted in rural areas in China that focused on patients' medication non-adherence. This study aims to explore the barriers to medication adherence for rural patients with mental disorders in China from the perspectives of patients, patients' family members and healthcare providers. METHODS A qualitative study was carried out in the rural areas of four towns within Shandong Province in eastern China. The study adheres to COREQ guidelines. Semi-structured in-depth interviews were conducted with 11 patients, 21 family members and 8 primary mental health service providers. RESULTS Thematic analysis generated five major themes: (1) lack of self-insight, (2) inadequate family support, (3) long treatment duration and side effects of drugs, (4) poor economic conditions, and (5) the perceived stigma of illness. CONCLUSION These findings may be useful for policymakers and planners to improve medication adherence and decrease the recurrence rate of mental disorders in China.
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Affiliation(s)
- Xiaoyun Chai
- grid.27255.370000 0004 1761 1174Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Wenhua Xi Rd 44, Jinan, 250012 China ,grid.27255.370000 0004 1761 1174NHC Key Laboratory of Health Economics and Policy Research, Shandong University, Jinan, 250012 China ,grid.27255.370000 0004 1761 1174Center for Health Preference Research, Shandong University, Jinan, 250012 China
| | - Ying Liu
- grid.460018.b0000 0004 1769 9639Asset Management and Operation Department, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, 250021 China
| | - Zhuxin Mao
- School of Insurance, Southwestern University of Finance and Economics, Chengdu, 611130, China.
| | - Shunping Li
- Centre for Health Management and Policy Research, School of Public Health, Cheeloo College of Medicine, Shandong University, Wenhua Xi Rd 44, Jinan, 250012, China. .,NHC Key Laboratory of Health Economics and Policy Research, Shandong University, Jinan, 250012, China. .,Center for Health Preference Research, Shandong University, Jinan, 250012, China.
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Zhang Z, Tariq A, Zeng F, Chai X, Graciano C. Involvement of soluble proteins in growth and metabolic adjustments of drought-stressed Calligonum mongolicum seedlings under nitrogen addition. Plant Biol (Stuttg) 2021; 23:32-43. [PMID: 33012086 DOI: 10.1111/plb.13190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 09/24/2020] [Indexed: 05/26/2023]
Abstract
The planting of seedlings is the most effective measure for vegetation restoration. However, this practice is challenging in desert ecosystems where water and nutrients are scarce. Calligonum mongolicum is a sand-fixing pioneer shrub species, and its adaptive strategy for nitrogen (N) deposition and drought is poorly understood. Thus, in a pot experiment, we studied the impacts of four N levels (0, 3, 6, 9 gN·m-2 ·year-1 ) under drought or a well-watered regime on multiple eco-physiological responses of 1-year-old C. mongolicum seedlings. Compared to well-watered conditions, drought considerably influenced seedling growth by impairing photosynthesis, osmolyte accumulation and activity of superoxide dismutase and enzymes related to N metabolism. Nitrogen addition improved the productivity of drought-stressed seedlings, as revealed by increased water use efficiency, enhanced superoxide dismutase and nitrite reductase activity and elevated N and phosphorus (P) levels in seedlings. Nevertheless, the addition of moderate to high levels of N (6-9 gN·m-2 ·year-1 ) impaired net photosynthesis, osmolyte accumulation and nitrate reductase activity. N addition and water regimes did not markedly change the N:P ratios of aboveground parts; while more biomass and nutrients were allocated to fine roots to assimilate the insufficient resources. Soluble protein in assimilating shoots might play a vital role in adaptation to the desert environment. The response of C. mongolicum seedlings to N addtion and drought involved an interdependency between soluble protein and morphological, physiological and biochemical processes. These findings provide an important reference for vegetation restoration in arid lands under global change.
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Affiliation(s)
- Z Zhang
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
- University of Chinese Academy of Sciences, Beijing, China
| | - A Tariq
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
| | - F Zeng
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
| | - X Chai
- Xinjiang Key Laboratory of Desert Plant Root Ecology and Vegetation Restoration, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- State Key Laboratory of Desert and Oasis Ecology, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi, China
- Cele National Station of Observation and Research for Desert-Grassland Ecosystems, Cele, China
- University of Chinese Academy of Sciences, Beijing, China
| | - C Graciano
- Instituto de Fisiología Vegetal, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de La Plata, Buenos Aires, Argentina
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Chai X, Yang Y, Wang X, Hao P, Wang L, Wu T, Zhang X, Xu X, Han Z, Wang Y. Spatial variation of the soil bacterial community in major apple producing regions of China. J Appl Microbiol 2020; 130:1294-1306. [PMID: 33012070 DOI: 10.1111/jam.14878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 09/18/2020] [Accepted: 09/26/2020] [Indexed: 11/26/2022]
Abstract
AIMS In China, apple production areas are largely from the coastal to inland areas and across varied climate zones. However, the relationship among soil micro-organisms, environmental factors and fruit quality has not been clearly confirmed in orchards. Here we attempted to identify the variation of soil bacteria in the main apple producing regions and reveal the relationship among climatic factor, soil properties, soil bacterial community and fruit quality. METHODS AND RESULTS Sixty soil samples were collected from six main apple producing areas in China. We examined the soil bacteria using bacterial 16S rRNA gene amplicon profiling. The results show that the soil bacterial diversity of apple orchards varied from the Bohai Bay Region to the Loess Plateau Region. Proteobacteria, Acidobacteria and Actinobacteria were the predominant taxa at the phylum level for all six areas. In the Bohai Bay and the Loess Plateau region, which are the two largest apple producing areas, Proteobacteria and Actinobacteria had the highest relative abundance, respectively. Furthermore, soil bacterial diversity showed positive correlation with the mean annual temperature (MAT), soil organic matter (SOM) and pH. Excluding a direct effect on the apple fruit quality, MAT exerted an indirect influence through soil SOM and pH to alter the relative abundance of dominant taxa and shift the bacterial diversity, which affects the apple fruit titratable acids and soluble solids. CONCLUSIONS Geographic variables underlie apple orchard soil bacterial communities vary according to spatial scale. Environmental factors exert an indirect effect on apple fruit quality via shaping soil bacterial community. SIGNIFICANCE AND IMPACT OF THE STUDY This study provides a list of bacteria associated with environmental factors and the ecological attributes of their interactions in apple orchards, which will improve our ability to promote soil bacterial functional capabilities in order to reduce the fertilizer input and enhance the fruit quality.
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Affiliation(s)
- X Chai
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Y Yang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - X Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - P Hao
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - L Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - T Wu
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - X Zhang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - X Xu
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Z Han
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
| | - Y Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture and Rural Affairs, Beijing, P. R. China
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Xie F, Ni T, Ding Z, Hao Y, Wang R, Wang R, Wang T, Chai X, Yu S, Jin Y, Jiang Y, Zhang D. Design, synthesis, and in vitro evaluation of novel triazole analogues featuring isoxazole moieties as antifungal agents. Bioorg Chem 2020; 101:103982. [DOI: 10.1016/j.bioorg.2020.103982] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 05/23/2020] [Accepted: 05/29/2020] [Indexed: 01/17/2023]
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Chai X, Lao D, Fujimoto K, Hamazaki R, Ueda M, Raman C. Magnetic Solitons in a Spin-1 Bose-Einstein Condensate. Phys Rev Lett 2020; 125:030402. [PMID: 32745412 DOI: 10.1103/physrevlett.125.030402] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/26/2020] [Indexed: 06/11/2023]
Abstract
Vector solitons are a type of solitary or nonspreading wave packet occurring in a nonlinear medium composed of multiple components. As such, a variety of synthetic systems can be constructed to explore their properties, from nonlinear optics to ultracold atoms, and even in metamaterials. Bose-Einstein condensates have a rich panoply of internal hyperfine levels, or spin components, which make them a unique platform for exploring these solitary waves. However, existing experimental work has focused largely on binary systems confined to the Manakov limit of the nonlinear equations governing the soliton behavior, where quantum magnetism plays no role. Here we observe, using a "magnetic shadowing" technique, a new type of soliton in a spinor Bose-Einstein condensate, one that exists only when the underlying interactions are antiferromagnetic and which is deeply embedded within a full spin-1 quantum system. Our approach opens up a vista for future studies of "solitonic matter" whereby multiple solitons interact with one another at deterministic locations.
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Affiliation(s)
- X Chai
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, USA
| | - D Lao
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, USA
| | - Kazuya Fujimoto
- Institute for Advanced Research, Nagoya University, Nagoya 464-8601, Japan
- Department of Applied Physics, Nagoya University, Nagoya 464-8603, Japan
| | - Ryusuke Hamazaki
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Nonequilibrium Quantum Statistical Mechanics RIKEN Hakubi Research Team, RIKEN Cluster for Pioneering Research (CPR), RIKEN iTHEMS, Wako, Saitama 351-0198, Japan
| | - Masahito Ueda
- Department of Physics, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Institute for Physics of Intelligence, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan
| | - C Raman
- School of Physics, Georgia Institute of Technology, 837 State Street, Atlanta, Georgia 30332, USA
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Zhang X, Wang B, Zhang R, Chai X, Chao H. Hypereosinophilia (HE) in acute myeloid leukemia (AML) with normal karyotype: A report of two cases. Niger J Clin Pract 2020; 23:116-119. [PMID: 31929217 DOI: 10.4103/njcp.njcp_585_18] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
We present two rare cases of hypereosinophilia (HE) in acute myeloid leukemia with normal karyotype (NK-AML) at diagnosis. The first case is a 29-year-old female who presented with HE. On evaluation, she was found to have NK-AML. She failed to achieve complete remission (CR) after the first induction therapy with standard idarubicin and cytarabine (IA). She achieved CR after two cycles of reinduction chemotherapy with cytarabine, aclarubicin, and granulocyte colony-stimulating factor (G-CSF) (CAG) but had early relapsed. Reinduction chemotherapy with fludarabine, Ara-C, and G-CSF (FLAG) led to her second remission, followed by unrelated umbilical cord hematopoietic stem cell transplantation (HSCT). Unfortunately, she died of thrombotic thrombocytopenic purpura. The second case is a 23-year-old male who was diagnosed as NK-AML with HE. IA regimen was successively used in two cycles treatment achieving CR. He underwent haploidentical HSCT but had a relapse after 17 months of sustained remission and died 4 months later. The presence of HE may be a poor prognostic feature in NK-AML.
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Affiliation(s)
- X Zhang
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - B Wang
- Department of Hematology, The Third Affiliated Hospital of Soochow University, Changzhou, China
| | - R Zhang
- Department of Hematology, The First Affiliated Hospital of Suzhou University, Jiangsu Institute of Hematology, Key Laboratory of Thrombosis and Hemostasis of Ministry of Health, Suzhou, Jiangsu, China
| | - X Chai
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - H Chao
- Department of Hematology, Affiliated Changzhou Second Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
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Affiliation(s)
- Xiaoyun Chai
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
- Department of Applied Psychology, Hubei University of Medicine, Shiyan, China
| | - Jun Wang
- Department of Recreation, Park, and Tourism Sciences, Texas A&M University, College Station, TX, USA
| | - Xiaoyan Li
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Wen Liu
- School of Psychology, Liaoning Normal University, Dalian, China
| | - Guoxiang Zhao
- School of Education, Henan Normal University, Xinxiang, China
| | - Danhua Lin
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
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Chai X, Xie L, Wang X, Wang H, Zhang J, Han Z, Wu T, Zhang X, Xu X, Wang Y. Apple rootstocks with different phosphorus efficiency exhibit alterations in rhizosphere bacterial structure. J Appl Microbiol 2019; 128:1460-1471. [PMID: 31829487 DOI: 10.1111/jam.14547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 09/24/2019] [Revised: 11/25/2019] [Accepted: 12/06/2019] [Indexed: 12/01/2022]
Abstract
AIMS The purpose of this study was to select phosphorus-efficient apple rootstocks under phosphorus deficiency and to reveal the effects of different apple rootstocks on the rhizosphere bacterial community. METHODS AND RESULTS We used 83 hybrid lines of Malus robusta Rehd. × Malling 9 (M.9) to investigate their physiological traits and the phosphorus deficiency phenotypes of leaves in response to phosphorus deficiency (0·1 mmol l-1 PO4 3- ). All the plants were cultivated in pots in the greenhouse and watered using drip irrigation. In accordance with the results of investigation, we selected the phosphorus-efficient hybrid lines (PE) and the phosphorus-inefficient hybrid lines (PI) to research their root morphology and root hairs (RH). In addition, we used Illumina MiSeq sequencing to determine the bacterial community of the rhizosphere from different rootstocks. The results showed that the PE plants had better growth characteristics and stronger root plasticity than that of the PI plants, and phosphorus deficiency can stimulate the RH growth of PE plants. There was no significant difference in the rhizosphere bacterial diversity, but we found that the bacterial community structure was significantly different at the genus levels; in addition, 89 genera were found to have significant differences between PE and PI plants, especially Bacillus. The PE rhizosphere had more abundant Bacillus compared to the PI. High positive Pearson correlations with the phosphorus concentration in the plantlets of apple rootstocks were detected for the bacterial genera Bacillus (r: 0·776). CONCLUSIONS The phosphorus-efficient apple rootstocks adapted to phosphorus deficiency by shaping the root morphology. Notably, different apple rootstocks showed alteration of the microbes in rhizosphere. SIGNIFICANCE AND IMPACT OF THE STUDY This study can provide the materials for exploring the mechanism of apple rootstock phosphorus absorption. In accordance with the different bacterial community compositions, we can develop the inoculants to promote nutrient uptake.
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Affiliation(s)
- X Chai
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - L Xie
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - X Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - H Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - J Zhang
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, P. R. China
| | - Z Han
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - T Wu
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - X Zhang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - X Xu
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
| | - Y Wang
- College of Horticulture, China Agricultural University, Beijing, P. R. China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), the Ministry of Agriculture, China Agricultural University, Beijing, P. R. China
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Liu J, Shao D, Cheng S, Guo F, Yuan Y, Hu K, Wang Z, Meng X, Jin X, Yun X, Chai X, Li H, Zhang Y, Zhang H, Ye M. Frequency of mutations in 21 hereditary breast and ovarian cancer susceptibility genes among 882 high-risk individuals. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.018] [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: 11/15/2022] Open
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33
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Liao J, Pan B, Liao G, Zhao Q, Gao Y, Chai X, Zhuo X, Wu Q, Jiao B, Pan W, Guo Z. Synthesis and immunological studies of β-1,2-mannan-peptide conjugates as antifungal vaccines. Eur J Med Chem 2019; 173:250-260. [DOI: 10.1016/j.ejmech.2019.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 03/20/2019] [Accepted: 04/01/2019] [Indexed: 01/06/2023]
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Qin MM, Chai X, Huang HB, Feng G, Li XN, Zhang J, Zheng R, Liu XC, Pu C. let-7i inhibits proliferation and migration of bladder cancer cells by targeting HMGA1. BMC Urol 2019; 19:53. [PMID: 31196036 PMCID: PMC6567622 DOI: 10.1186/s12894-019-0485-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2018] [Accepted: 06/03/2019] [Indexed: 12/20/2022] Open
Abstract
Background Let-7 is one of the earliest discovered microRNAs(miRNAs) and has been reported to be down-regulated in multiple malignant tumors. The effects and molecular mechanisms of let-7i in bladder cancer are still unclear. This study was to investigate the effects and potential mechanisms of let-7i on bladder cancer cells. Methods Total RNA was extracted from bladder cancer cell lines. The expression levels of let-7i and HMGA1 were examined by quantitative real-time PCR. Cell viability was detected using the CCK-8 and colony formation assays, while transwell and wound healing assays were used to evaluate migration ability. Luciferase reporter assay and western blot were used to confirm the target gene of let-7i. Results Compared with the SV-40 immortalized human uroepithelial cell line (SV-HUC-1), bladder cancer cell lines T24 and 5637 had low levels of let-7i expression, but high levels of high mobility group protein A1 (HMGA1) expression. Transfection of cell lines T24 and 5637 with let-7i mimic suppressed cell proliferation and migration. Luciferase reporter assay confirmed HMGA1 may be one of the target genes of let-7i-5p. Protein and mRNA expression of HMGA1 was significantly downregulated in let-7i mimic transfected cell lines T24 and 5637. Conclusions Up-regulation of let-7i suppressed proliferation and migration of the human bladder cancer cell lines T24 and 5637 by targeting HMGA1. These findings suggest that let-7i might be considered as a novel therapeutic target for bladder cancer.
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Affiliation(s)
- M-M Qin
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - X Chai
- Department of Urology, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
| | - H-B Huang
- Department of Urology, The First Affiliated Hospital of Wannan Medical College, Wuhu, 241001, Anhui, China
| | - G Feng
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - X-N Li
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - J Zhang
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - R Zheng
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - X-C Liu
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China
| | - C Pu
- Clinical Laboratory, The First Affiliated Hospital of Wannan Medical College, No.2, West Zheshan Road, Wuhu, 241001, Anhui, China.
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Chai X, Du H, Li X, Su S, Lin D. What Really Matters for Loneliness Among Left-Behind Children in Rural China: A Meta-Analytic Review. Front Psychol 2019; 10:774. [PMID: 31057450 PMCID: PMC6482215 DOI: 10.3389/fpsyg.2019.00774] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 03/21/2019] [Indexed: 12/31/2022] Open
Abstract
In rural China, left-behind children are likely to suffer chronic loneliness. Research has identified a variety of factors that may be associated with loneliness among these children. A meta-analysis is needed to address the empirical inconsistencies and examine the strength of relations between different factors and loneliness. The current meta-analysis included 51 studies on predictors of loneliness published from 2008 to 2017. Results showed that one individual factor (social anxiety) is a key risk factor for loneliness, whereas eight individual (older age, self-esteem, resilience, extroversion) and contextual factors (family functioning, parent–child relationship, peer relationship, social support) serve as protective factors in predicting loneliness. In addition, boys were more likely to feel lonely than girls. Findings and implications of this study were discussed.
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Affiliation(s)
- Xiaoyun Chai
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Hongfei Du
- Department of Psychology, Social and Health Psychology Research Center, Guangzhou University, Guangzhou, China
| | - Xiaoyan Li
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Shaobing Su
- Eliot-Pearson Department of Child Study and Human Development, Institute for Applied Research in Youth Development, Tufts University, Medford, MA, United States
| | - Danhua Lin
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
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Chai X, Li X, Ye Z, Li Y, Lin D. Subjective well-being among left-behind children in rural China: The role of ecological assets and individual strength. Child Care Health Dev 2019; 45:63-70. [PMID: 30443917 DOI: 10.1111/cch.12630] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 10/24/2018] [Accepted: 11/11/2018] [Indexed: 11/27/2022]
Abstract
BACKGROUND The plight of left-behind children affected by parental migration has aroused widespread public concern in China. However, limited research has been conducted on the positive aspects of the development (e.g., subjective well-being) among left-behind children. Recently, a new means to investigating the mechanisms of positive development in left-behind children emerged from the positive youth development (PYD) approach. Grounded in the framework of PYD, this study was designed to examine how ecological assets (i.e., neighbourhood social cohesion and trusting relationships with caregivers) and individual strength (i.e., resilience) predict subjective well-being among left-behind children. METHODS Altogether, 1,449 left-behind children (50.70% boys; Mage = 12.11 years, SD = 1.84) were recruited to complete questionnaires designed to assess perceived neighbourhood social cohesion, trusting relationships with caregivers, resilience, and subjective well-being. RESULTS The results show that neighbourhood social cohesion and trusting relationships with caregivers positively predicted left-behind children's subjective well-being. Moreover, structural equation modelling results reveal that resilience partially mediated the effect of neighbourhood social cohesion and trusting relationships with caregivers on subjective well-being. CONCLUSIONS In this research, we identified key contextual and personal enablers for subjective well-being among left-behind children. The results provide some important implications regarding the manner in which subjective well-being can be promoted among left-behind children by increasing neighbourhood and family ecological assets and enhancing resilience.
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Affiliation(s)
- Xiaoyun Chai
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Xiaoyan Li
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Zhi Ye
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Yuxuan Li
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
| | - Danhua Lin
- Institute of Developmental Psychology, Beijing Normal University, Beijing, China
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Chai X, Wang L, Yang Y, Xie L, Zhang J, Wu T, Zhang X, Xu X, Wang Y, Han Z. Apple rootstocks of different nitrogen tolerance affect the rhizosphere bacterial community composition. J Appl Microbiol 2018; 126:595-607. [PMID: 30282124 DOI: 10.1111/jam.14121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 09/20/2018] [Accepted: 09/25/2018] [Indexed: 11/27/2022]
Abstract
AIMS To select apple rootstocks that are tolerant to low nitrogen and reveal the relationship between the rhizosphere bacterial communities and the low nitrogen tolerance of the apple rootstock. METHODS AND RESULTS In total, 235 lines of hybrids of Malus robusta Rehd. × M.9 with low nitrogen stress were cultivated in pots in a greenhouse equipped with a drip irrigation system, and growth characteristics, photosynthesis traits and mineral elements were monitored. The bacterial community structure of the rhizosphere from different rootstocks was determined via Illumina MiSeq sequencing. This study selected three low nitrogen-tolerant (NT) lines that had higher nitrogen concentration, and higher photosynthesis rate than the three low nitrogen-sensitive (NS) lines. The bacterial community structure significantly differed (P ≤ 0·001) among the rootstocks. The bacterial phyla Proteobacteria and Actinobacteria were the dominant groups in the rhizosphere and presented higher abundance in the NT rhizosphere. The N concentration in the apple rootstocks exhibited highly positive Pearson correlations with the bacterial genera Sphingomonas, Pseudoxanthomonas, Bacillus and Acinetobacter, and negative correlations with the bacterial genera Pseudarthrobacter and Bradyrhizobium. CONCLUSIONS This study showed that investigated rootstocks achieved increased nitrogen concentration by enhancing their photosynthetic production capacity and shaping their rhizobacteria community structure. SIGNIFICANCE AND IMPACT OF THE STUDY The findings provide a basis for studying the mechanisms of resistance to low nitrogen stress in apple rootstocks. Based on these beneficial bacteria, microbial inoculants can be developed for use in sustainable agricultural and horticultural production.
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Affiliation(s)
- X Chai
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - L Wang
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Y Yang
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - L Xie
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - J Zhang
- Plant Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - T Wu
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - X Zhang
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - X Xu
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Y Wang
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
| | - Z Han
- College of Horticulture, China Agricultural University, Beijing, China.,Key Laboratory of Biology and Genetic Improvement of Horticultural (Nutrition and Physiology), The Ministry of Agriculture, China Agricultural University, Beijing, China
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Chai X, Ropagnol X, Ovchinnikov A, Chefonov O, Ushakov A, Garcia-Rosas CM, Isgandarov E, Agranat M, Ozaki T, Savel'ev A. Observation of crossover from intraband to interband nonlinear terahertz optics. Opt Lett 2018; 43:5463-5466. [PMID: 30383033 DOI: 10.1364/ol.43.005463] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Accepted: 10/11/2018] [Indexed: 06/08/2023]
Abstract
In this Letter, we investigate the nonlinear effects of extremely intense few-cycle terahertz (THz) pulses (generated from the organic crystal 4-NN, NN-dimethylamino-4'4'-N'N'-methyl-stilbazolium 2, 4, 6 trimethylbenzenesulfonate, with peak electrical fields of a few MV/cm) on the carrier dynamics in n-doped semiconductor thin film In0.53Ga0.47As. By performing open-aperture Z-scan measurements and recording the transmitted THz energy through semiconductor sample, we observed a strong THz absorption bleaching effect at high fields, followed by an absorption enhancement at even higher fields. We attribute our observations to a crossover from pure intraband carrier dynamics to an interplay between intraband carrier heating and interband carrier generations.
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Chai X, Xiao J, Li M, Wang C, An H, Li C, Li Y, Zhang D, Cui X, Wang T. Bridge-Caging Strategy in Phosphorus-Substituted Rhodamine for Modular Development of Near-Infrared Fluorescent Probes. Chemistry 2018; 24:14506-14512. [DOI: 10.1002/chem.201802875] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaoyun Chai
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; Shanghai 200433 P.R. China
| | - Jin Xiao
- Department of Chemistry; School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 P.R. China
| | - Min Li
- Department of Chemistry; School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 P.R. China
| | - Chaoming Wang
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; Shanghai 200433 P.R. China
| | - Haiyan An
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; Shanghai 200433 P.R. China
| | - Chen Li
- Department of Chemistry; School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 P.R. China
| | - Yuntao Li
- Department of Chemistry; School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 P.R. China
| | - Dazhi Zhang
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; Shanghai 200433 P.R. China
| | - Xiaoyan Cui
- Department of Chemistry; School of Chemistry and Molecular Engineering; East China Normal University; Shanghai 200241 P.R. China
| | - Ting Wang
- Department of Organic Chemistry; College of Pharmacy; Second Military Medical University; Shanghai 200433 P.R. China
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Wang B, Cui X, Zhang Z, Chai X, Ding H, Wu Q, Guo Z, Wang T. A six-membered-ring incorporated Si-rhodamine for imaging of copper(ii) in lysosomes. Org Biomol Chem 2018; 14:6720-8. [PMID: 27314426 DOI: 10.1039/c6ob00894a] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The regulation of copper homeostasis in lysosomes of living cells is closely related to various physiological and pathological processes. Thus, it is of urgent need to develop a fluorescent probe for selectively and sensitively monitoring the location and concentration of lysosomal Cu(2+). Herein, a six-membered ring, thiosemicarbazide, was incorporated into a Si-rhodamine (SiR) scaffold for the first time, affording a SiR-based fluorescent probe SiRB-Cu. Through the effective Cu(2+)-triggered ring-opening process, the probe exhibits fast NIR chromogenic and fluorogenic responses to Cu(2+) within 2 min as the result of formation of a highly fluorescent product SiR-NCS. Compared with a five-membered ring, the expanded ring retains great tolerance to H(+), ensuring the superior sensitivity with a detection limit as low as 7.7 nM and 200-fold enhancement of relative fluorescence in the presence of 1.0 equiv. of Cu(2+) in pH = 5.0 solution, the physiological pH of lysosome. Moreover, the thiosemicarbazide moiety acts not only as the chelating and reactive site, but also as an efficient lysosome-targeting group, leading to the proactive accumulation of the probe into lysosomes. Taking advantage of these distinct properties, SiRB-Cu provides a functional probe suitable for imaging exogenous and endogenous lysosomal Cu(2+) with high imaging contrast and fidelity.
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Affiliation(s)
- Baogang Wang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Xiaoyan Cui
- Department of Chemistry, New York University, New York, New York 10003, USA
| | - Zhiqiang Zhang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Xiaoyun Chai
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Hao Ding
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Qiuye Wu
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Zhongwu Guo
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China. and Department of Chemistry, Wayne State University, Detroit, Michigan 48202, USA.
| | - Ting Wang
- Department of Organic Chemistry, College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Chefonov O, Ovchinnikov A, Agranat M, Fortov V, Efimenko E, Stepanov A, Ozaki T, Chai X, Ropagnol X, Ushakov A, Savel’ev A. Nonlinear Transfer of Intense Few Cycle Terahertz Pulse Through Opaque Semiconductors. EPJ Web Conf 2018. [DOI: 10.1051/epjconf/201819507007] [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: 11/14/2022] Open
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42
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Chefonov OV, Ovchinnikov AV, Romashevskiy SA, Chai X, Ozaki T, Savel'ev AB, Agranat MB, Fortov VE. Giant self-induced transparency of intense few-cycle terahertz pulses in n-doped silicon. Opt Lett 2017; 42:4889-4892. [PMID: 29216136 DOI: 10.1364/ol.42.004889] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 10/31/2017] [Indexed: 06/07/2023]
Abstract
The results of high-field terahertz transmission experiments on n-doped silicon (carrier concentration of 8.7×1016 cm-3) are presented. We use terahertz pulses with electric field strengths up to 3.1 MV cm-1 and a pulse duration of 700 fs. A huge transmittance enhancement of ∼90 times is observed with increasing of the terahertz electric field strengths within the range of 1.5-3.1 MV cm-1.
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Wu J, Ni T, Chai X, Wang T, Wang H, Chen J, Jin Y, Zhang D, Yu S, Jiang Y. Molecular docking, design, synthesis and antifungal activity study of novel triazole derivatives. Eur J Med Chem 2017; 143:1840-1846. [PMID: 29133044 DOI: 10.1016/j.ejmech.2017.10.081] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 10/24/2017] [Accepted: 10/30/2017] [Indexed: 01/28/2023]
Abstract
The incidence of life-threatening fungal infections has dramatically increased for decades. In order to develop novel antifungal agents, two series of (2R,3R)-1-(1H-1,2,4-triazol-1-yl)-2-(2,4-difluorophenyl)-3-(N-substitutied)-2-butanols (3a-o, 5a-f, 8a-u), which were analogues of voriconazole, were designed, synthesized and characterized by 1H NMR, 13C NMR and HRMS. The MIC80 values showed that the target compounds 3a-o indicated better activities than fluconazole on three important fungal pathogens except for 3i. Significant activity of compounds 3d, 3k, 3n, 3m and 3o was observed on the Aspergillus fumigatus strain (MIC80 range: 1-0.125 μg/ml). Especially, compound 3k had strong activity to inhibit the growth of ten fungal pathogens. But it didn't exhibit good activity in in vivo value. Molecular docking experiments demonstrated that 3k possessed superior affinity with target enzyme by strong hydrogen bond from morpholine ring.
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Affiliation(s)
- Junqi Wu
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China; Student Bridge, Second Military Medical University, Shanghai 200433, China
| | - Tingjunhong Ni
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Ting Wang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Hongrui Wang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Jindong Chen
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Yongsheng Jin
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Dazhi Zhang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Shichong Yu
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
| | - Yuanying Jiang
- Center for New Drug Research, School of Pharmacy, Second Military Medical University, Shanghai 200433, China.
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Wang D, Yang X, Chai X, Fang J, Zhang X. HLA-A*24:388N: a novel HLA-A*24 allele identified by sequence-based typing. HLA 2017; 90:364-365. [PMID: 28963760 DOI: 10.1111/tan.13149] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 09/11/2017] [Revised: 09/20/2017] [Accepted: 09/26/2017] [Indexed: 11/29/2022]
Abstract
The novel allele, A*24:388N, was identified by sequence-based typing in a Chinese individual.
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Affiliation(s)
- D Wang
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, China.,BGI-Shenzhen, Shenzhen, China
| | - X Yang
- BGI-Shenzhen, Shenzhen, China
| | - X Chai
- BGI-Shenzhen, Shenzhen, China
| | - J Fang
- BGI-Shenzhen, Shenzhen, China
| | - X Zhang
- BGI-Shenzhen, Shenzhen, China
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45
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Cai Z, Ding Z, Hao Y, Ni T, Xie F, Zhao J, Li R, Yu S, Wang T, Chai X, Jin Y, Gao Y, Zhang D, Jiang Y. Design, synthesis, and SAR study of 3-(benzo[d][1,3]dioxol-5-yl)-N-benzylpropanamide as novel potent synergists against fluconazole-resistant Candida albicans. Bioorg Med Chem Lett 2017; 27:4571-4575. [PMID: 28874321 DOI: 10.1016/j.bmcl.2017.08.053] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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: 06/13/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 11/28/2022]
Abstract
Based on our previous discovery and SAR study on the lead compounds 7d, 5 and berberine which can significantly enhance the susceptibility of fluconazole against fluconazole-resistant Candida albicans, a series of 3-(benzo[d][1,3]dioxol-5-yl)-N-(substituted benzyl)propanamides were designed, synthesized, and evaluated for their in vitro synergistic activity in combination with fluconazole. The series 2a-f were designed by replacing the amide moiety of the lead compound 7d with retro-amide moiety, and compounds 2a and 2b showed more activity than the lead 7d. Furthermore, introducing biphenyl moiety into series 2d-f afforded series 3a-r, most of which exhibited significantly superior activity to the series 2d-f. Especially, compound 3e, at a concentration of 1.0µg/ml, can enhance the susceptibility of fluconazole against fluconazole-resistant Candida albicans from 128.0µg/ml to 0.125-0.25µg/ml. A clear SAR of the compounds is discussed.
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Affiliation(s)
- Zhan Cai
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Zichao Ding
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Yumeng Hao
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350112, China
| | - Tingjunhong Ni
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Fei Xie
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Jing Zhao
- School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350112, China
| | - Ran Li
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Shichong Yu
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Ting Wang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Xiaoyun Chai
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Yongsheng Jin
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Yue Gao
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China
| | - Dazhi Zhang
- Department of Organic Chemistry, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China; School of Pharmacy, Fujian University of Traditional Chinese Medicine, 1 Qiuyang Road, Fuzhou 350112, China.
| | - Yuanying Jiang
- Center of New Drug Research, School of Pharmacy, Second Military Medical University, 325 Guohe Road, Shanghai 200433, China.
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Chai X, Zhang H, Yang X, Yang F, Liu N. Identification of 400 novel alleles at the HLA-A, -B, -C, -DRB1, -DQB1 loci from China Marrow Donor Program. HLA 2017. [DOI: 10.1111/tan.13071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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)
- X. Chai
- BGI Shenzhen; Shenzhen China
| | | | - X. Yang
- BGI Shenzhen; Shenzhen China
| | - F. Yang
- BGI Shenzhen; Shenzhen China
| | - N. Liu
- BGI Shenzhen; Shenzhen China
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Cai M, Chai X, Wang X, Wang T. An Acid-Inert Fluorescent Probe for the Detection of Nitrite. J Fluoresc 2017; 27:1365-1371. [DOI: 10.1007/s10895-017-2071-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 03/02/2017] [Indexed: 01/18/2023]
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Liu X, Sun C, Wang Z, Chai X, Xiong J, Yang Y, Cheng X. Preliminary study to improve the performance of SCWR-M during loss-of-flow accident. Nuclear Engineering and Design 2016. [DOI: 10.1016/j.nucengdes.2016.07.030] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Wang B, Yu S, Chai X, Li T, Wu Q, Wang T. A Lysosome-Compatible Near-Infrared Fluorescent Probe for Targeted Monitoring of Nitric Oxide. Chemistry 2016; 22:5649-56. [DOI: 10.1002/chem.201505054] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Baogang Wang
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
| | - Shichong Yu
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
| | - Xiaoyun Chai
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
| | - Tiejun Li
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
| | - Qiuye Wu
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
| | - Ting Wang
- College of Pharmacy; Second Military Medical University; Shanghai 200433 P. R. China
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Specht JM, Partridge S, Chai X, Novakova A, Peterson L, Shields A, Guenthoer J, Linden HM, Gralow JR, Gadi V, Korde L, Hills D, Hsu L, Hockenbery DM, Kinahan P, Mankoff DA, Porter PL. Abstract P5-01-02: Multimodality molecular imaging with dynamic 18F-fluorodeoxyglucose positron emission tomography (FDG PET) and MRI to evaluate response and resistance to neoadjuvant chemotherapy (NAC). Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-p5-01-02] [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: 11/16/2022]
Abstract
Abstract
Background: Using quantitative FDG PET to measure glucose metabolism and perfusion, and dynamic contrast-enhanced (DCE) MRI to measure perfusion, we previously identified a metabolic signature for breast cancer resistant to NAC. This imaging signature is (1) persistent or increased tumor perfusion despite treatment, (2) an altered pattern of glucose kinetics in response to therapy, and (3) pre-therapy mismatch between tumor metabolism (MRFDG) and glucose delivery (K1) (high ratio of MRFDG/K1). These patterns predict poor response, early relapse and death independent of established prognostic factors, including pathologic response. Identification of factors associated with resistance or response to therapy is the translational goal of "Quantitative Dynamic PET and MRI in Breast Cancer Therapy," part of the Seattle Breast SPORE (1P50CA138293).
Methods: Patients (Pts) undergoing NAC for histologically confirmed breast cancer (stage II-III) were approached for this trial (CCIRB# 7587). FDG PET and DCE-MRI were obtained pre-therapy, 2-12 weeks after start of NAC (mid-therapy) and after completion of NAC. Breast biopsies were obtained pre-therapy and post-NAC. FDG PET included a dynamic scan with kinetic analysis. PET measures included SUVmax, MRFDG, K1, Ki, and Patlak. 3T DCE-MRI measurements included semi-quantitative vascular parameters of peak enhancement (PE), signal enhancement ratio (SER), washout fraction, functional tumor volume, and apparent diffusion coefficient (ADC) from diffusion-weighted MRI (DWI). Breast biopsies were assayed by immunohistochemistry and gene expression profiling. NAC was per physician's choice with most pts receiving weekly paclitaxel (with trastuzumab if HER2+) followed by doxorubicin/cyclophosphamide.
Results: 32 pts have completed the study. Pathologic complete response (pCR), defined as absence of invasive cancer in the breast, was observed in 9 (28%); near pCR defined as only microscopic residual invasive cancer in 3 (9%) more pts. Mid-therapy decline in SUVmax and K1 was associated with near pCR; (p-value 0.06, 0.04, respectively). Pre-therapy PET measures of MRFDG and K1 were not predictive of pCR. On MRI, pre-therapy PE (p=0.009), SER (p=0.01), washout fraction (p=0.02), ADC (p=0.08, trend) and mid-therapy change in volume (p=0.05) were each predictive of pCR. Gene profiling of pre-therapy biopsies showed correlation between high MRFDG/K1 ratio in basal and luminal B tumors.
Conclusions: Assessment of serial changes in tumor metabolism and perfusion by FDG PET and DCE-MRI is feasible in the clinic. Mid-therapy decline in metabolism and glucose delivery was predictive of pCR; consistent with prior retrospective series. Baseline DCE-MRI and DWI measures show promise to predict response, and associations of mid-therapy change in MR functional tumor volume with pCR agree with findings of another multisite clinical trial (ISPY). These imaging parameters may serve as useful biomarkers to inform future neoadjuvant trials. Integration of imaging data with gene expression profiling revealed that the pattern of metabolism in luminal B tumors was closer to that of the basal subtype compared to other ER-positive tumors.
Citation Format: Specht JM, Partridge S, Chai X, Novakova A, Peterson L, Shields A, Guenthoer J, Linden HM, Gralow JR, Gadi V, Korde L, Hills D, Hsu L, Hockenbery DM, Kinahan P, Mankoff DA, Porter PL. Multimodality molecular imaging with dynamic 18F-fluorodeoxyglucose positron emission tomography (FDG PET) and MRI to evaluate response and resistance to neoadjuvant chemotherapy (NAC). [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr P5-01-02.
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Affiliation(s)
- JM Specht
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - S Partridge
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - X Chai
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - A Novakova
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - L Peterson
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - A Shields
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - J Guenthoer
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - HM Linden
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - JR Gralow
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - V Gadi
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - L Korde
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - D Hills
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - L Hsu
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - DM Hockenbery
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - P Kinahan
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - DA Mankoff
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
| | - PL Porter
- University of Washington, Seattle, WA; Fred Hutchinson Cancer Research Center, Seattle, WA; Bassett Cancer Institute, Cooperstown, NY; University of Pennsylvania, Philadelphia, PA
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