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Xu CX, Qiu XY, Guo Y, Xu TM, Traub RJ, Feng HN, Cao DY. Valproate attenuates somatic hyperalgesia induced by orofacial inflammation combined with stress through inhibiting spinal IL-6 and STAT1 phosphorylation. Brain Res Bull 2024; 208:110889. [PMID: 38290590 PMCID: PMC10926348 DOI: 10.1016/j.brainresbull.2024.110889] [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: 10/12/2023] [Revised: 01/18/2024] [Accepted: 01/27/2024] [Indexed: 02/01/2024]
Abstract
Temporomandibular disorder (TMD) and fibromyalgia syndrome (FMS) may present as comorbid conditions, but treatment options are ineffective. The purpose of this study was to investigate whether valproate (VPA) attenuates somatic hyperalgesia induced by orofacial inflammation combined with stress, which represents a model of pain associated with TMD and FMS comorbidity, and to explore the potential mechanisms. The results showed that VPA inhibited somatic hyperalgesia induced by orofacial inflammation combined with stress, and down-regulated the interleukin-6 (IL-6) expression in the L4-L5 spinal dorsal horn of female rats. The anti-nociceptive effect of VPA was blocked by single or 5 consecutive day intrathecal administration of recombinant rat IL-6. Orofacial inflammation combined with stress up-regulated the ratio of phosphorylated signal transducer and activator of transcription 1 (p-STAT1) to STAT1 (p-STAT1/STAT1) in the spinal cord. VPA did not affect the STAT1 expression, while it down-regulated the ratio of p-STAT1/STAT1. The expression of STAT3 and the ratio of p-STAT3/STAT3 were not affected by orofacial inflammation combined with stress and VPA treatment. Intrathecal administration of exogenous IL-6 up-regulated the ratio of p-STAT1/STAT1. These data indicate that VPA attenuated somatic hyperalgesia induced by orofacial inflammation combined with stress via inhibiting spinal IL-6 in female rats, and the mechanism may involve the alteration of activation status of spinal STAT1. Thus, VPA may be a new candidate analgesic that targets IL-6 and STAT1 for the treatment of pain associated with the comorbidity of TMD and FMS.
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Affiliation(s)
- Chen-Xi Xu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, 98 West 5th Road, Xi'an, Shaanxi 710004, China
| | - Xin-Yi Qiu
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, 98 West 5th Road, Xi'an, Shaanxi 710004, China
| | - Yi Guo
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, 98 West 5th Road, Xi'an, Shaanxi 710004, China
| | - Tian-Ming Xu
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Richard J Traub
- Department of Neural and Pain Sciences, School of Dentistry, The UM Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD 21201, USA
| | - Hai-Nan Feng
- Department of Stomatology, The First Affiliated Hospital of Xi'an Jiaotong University, 277 Yanta West Road, Xi'an, Shaanxi 710061, China.
| | - Dong-Yuan Cao
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Testing Center of Stomatology, Xi'an Jiaotong University College of Stomatology, 98 West 5th Road, Xi'an, Shaanxi 710004, China; Department of Neural and Pain Sciences, School of Dentistry, The UM Center to Advance Chronic Pain Research, University of Maryland Baltimore, Baltimore, MD 21201, USA.
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Li KW, Ruan GC, Liu S, Xu TM, Ma Y, Zhou WX, Liu W, Zhao PY, Du ZR, Li J, Li JN. Long-term prognosis and its associated predictive factors in patients with eosinophilic gastroenteritis. World J Gastroenterol 2024; 30:146-157. [PMID: 38312116 PMCID: PMC10835522 DOI: 10.3748/wjg.v30.i2.146] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 11/28/2023] [Accepted: 12/25/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Eosinophilic gastroenteritis (EGE) is a chronic recurrent disease with abnormal eosinophilic infiltration in the gastrointestinal tract. Glucocorticoids remain the most common treatment method. However, disease relapse and glucocorticoid dependence remain notable problems. To date, few studies have illuminated the prognosis of EGE and risk factors for disease relapse. AIM To describe the clinical characteristics of EGE and possible predictive factors for disease relapse based on long-term follow-up. METHODS This was a retrospective cohort study of 55 patients diagnosed with EGE admitted to one medical center between 2013 and 2022. Clinical records were collected and analyzed. Kaplan-Meier curves and log-rank tests were conducted to reveal the risk factors for long-term relapse-free survival (RFS). RESULTS EGE showed a median onset age of 38 years and a slight female predominance (56.4%). The main clinical symptoms were abdominal pain (89.1%), diarrhea (61.8%), nausea (52.7%), distension (49.1%) and vomiting (47.3%). Forty-three (78.2%) patients received glucocorticoid treatment, and compared with patients without glucocorticoid treatments, they were more likely to have elevated serum immunoglobin E (IgE) (86.8% vs 50.0%, P = 0.022) and descending duodenal involvement (62.8% vs 27.3%, P = 0.046) at diagnosis. With a median follow-up of 67 mo, all patients survived, and 56.4% had at least one relapse. Six variables at baseline might have been associated with the overall RFS rate, including age at diagnosis < 40 years [hazard ratio (HR) 2.0408, 95% confidence interval (CI): 1.0082-4.1312, P = 0.044], body mass index (BMI) > 24 kg/m2 (HR 0.3922, 95%CI: 0.1916-0.8027, P = 0.014), disease duration from symptom onset to diagnosis > 3.5 mo (HR 2.4725, 95%CI: 1.220-5.0110, P = 0.011), vomiting (HR 3.1259, 95%CI: 1.5246-6.4093, P = 0.001), total serum IgE > 300 KU/L at diagnosis (HR 0.2773, 95%CI: 0.1204-0.6384, P = 0.022) and glucocorticoid treatment (HR 6.1434, 95%CI: 2.8446-13.2676, P = 0.003). CONCLUSION In patients with EGE, younger onset age, longer disease course, vomiting and glucocorticoid treatment were risk factors for disease relapse, whereas higher BMI and total IgE level at baseline were protective.
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Affiliation(s)
- Kai-Wen Li
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Ge-Chong Ruan
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Shuang Liu
- Department of Allergy, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Tian-Ming Xu
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Ye Ma
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Wei-Xun Zhou
- Department of Pathology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Wei Liu
- Department of Radiology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Peng-Yu Zhao
- Affairs Office, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital (West campus), Beijing 100032, China
| | - Zhi-Rong Du
- Department of Allergy, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Ji Li
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
| | - Jing-Nan Li
- Department of Gastroenterology, Chinese Academy of Medical Sciences and Peking Union Medical College Hospital, Beijing 100730, China
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Zhong LK, Sun XP, Han L, Tan CX, Weng JQ, Xu TM, Shi JJ, Liu XH. Design, Synthesis, Insecticidal Activity, and SAR of Aryl Isoxazoline Derivatives Containing Pyrazole-5-carboxamide Motif. J Agric Food Chem 2023; 71:14458-14470. [PMID: 37782011 DOI: 10.1021/acs.jafc.3c01608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
It is important to develop new insecticides with a new mode of action because of increasing pesticide resistance. In this study, a series of novel aryl isoxazoline derivatives containing the pyrazole-5-carboxamide motif were designed and synthesized. Their structures were confirmed by 1H NMR, 13C NMR, and HRMS. Bioassays indicated that the 24 compounds synthesized possessed excellent insecticidal activity against Mythimna separate and no activity against Aphis craccivora and Tetranychus cinnabarinus. Among these aryl isoxazoline derivatives, 3-(5-(3,5-dichlorophenyl)-5-(trifluoromethyl)-4,5-dihydrozol-3-yl)-N-(4-fluorophenyl)-1-methyl-1H-pyrazole-5-carboxamide (IA-8) had the best insecticidal activity against M. separate, which is comparable with the positive control fluralaner. The molecular docking results of compound IA-8 and fluralaner with the GABA model demonstrated the same docking mode between compound IA-8 and positive control fluralaner in the active site of GABA. Molecular structure comparisons and ADMET analysis can potentially be used to design more active compounds. The structure-activity relationships are also discussed. This work provided an excellent insecticide for further optimization.
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Affiliation(s)
- Liang-Kun Zhong
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Xin-Peng Sun
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Liang Han
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Cheng-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Jian-Jun Shi
- College of Chemistry & Chemical Engineering, Huangshan University, Huangshan 245041, China
| | - Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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Liu N, Sha R, Dai XY, Liu HJ, Yu LJ, Xu TM. [Clinical Practice of Multiple Disciplinary Team Care Model Following the Concept of Palliative Care for Advanced Head and Neck Cancer:Report of One Case]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2023; 45:77-79. [PMID: 36861159 DOI: 10.3881/j.issn.1000-503x.15165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 03/03/2023]
Abstract
We provided the palliative care of a multiple disciplinary team care mode to a patient diagnosed with advanced head and neck cancer and her caregivers.People-centered integrated health services were provided according to the specific needs and preferences of individuals.The team-based palliative care relieved the suffering and improved the quality of life of the patient and that of her family who were facing challenges associated with life-threatening illness.
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Affiliation(s)
- Na Liu
- Department of International Medical Services, PUMC Hospital,CAMS and PUMC,Beijing 100730,China
| | - Rui Sha
- Department of International Medical Services, PUMC Hospital,CAMS and PUMC,Beijing 100730,China
| | - Xiao-Yan Dai
- Department of International Medical Services, PUMC Hospital,CAMS and PUMC,Beijing 100730,China
| | - Hong-Ju Liu
- Department of Anesthesiology,PUMC Hospital,CAMS and PUMC,Beijing 100730,China
| | - Li-Jiang Yu
- Department of Oral and Maxillofacial Surgery,PUMC Hospital,CAMS and PUMC,Beijing 100730,China
| | - Tian-Ming Xu
- Department of Gastroenterology,PUMC Hospital,CAMS and PUMC,Beijing 100730,China
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Ji X, Zhou JL, Song CG, Xu TM, Wu DM, Cui BK. Taxonomy, phylogeny and divergence times of Polyporus (Basidiomycota) and related genera. MYCOSPHERE 2022. [DOI: 10.5943/mycosphere/13/1/1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [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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Xu TM, Li JN. [Diagnosis and treatment of gastrinoma]. Zhonghua Nei Ke Za Zhi 2022; 61:116-120. [PMID: 34979783 DOI: 10.3760/cma.j.cn112138-20211116-00820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- T M Xu
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J N Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Xu TM, Cheng XY, Yan PG, He XX, Li JN. [Clinicopathological characteristics of rectal neuroendocrine neoplasms]. Zhonghua Nei Ke Za Zhi 2021; 60:886-890. [PMID: 34551477 DOI: 10.3760/cma.j.cn112138-20210607-00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Clinicopathological characteristics of neuroendocrine neoplasms are highly heterogeneous based on variable origins.Our study aims to explore the clinical features of rectal neuroendocrine neoplasm (RNEN). Methods: Patients with histologically diagnosed rectal neuroendocrine neoplasms were retrospectively analyzed between January 2012 and December 2020. Epidemiological characteristics, clinical manifestations, complete blood count, endoscopy findings, and pathological features were recorded and analyzed. T-test was used for measurement data analysis, Chi-square test was performed for classification data analysis, and Binary logistic regression was applied for analyzing risk factors of metastasis. Results: Among 172 patients, the male to female ratio was 107 to 65 with an average age of (52±12) years (16-77 years). Altered bowel habit was the most common initial symptom (58/172, 33.7%), followed by abdominal pain (36/172, 20.9%) and loss of body weight (27/172, 15.7%). One hundred and sixty-one cases were neuroendocrine tumors, 9 were neuroendocrine carcinomas and 2 were mixed neuroendocrine-non-neuroendocrine neoplasms. Most endoscopic presentations were polypoid lesions (147/172, 85.5%), mainly limited to mucosa (48/172, 27.9%) and submucosa (96/172, 55.8%). Twenty-nine patients developed lymph node invasion or distant metastasis at diagnosis. There were statistical difference of neutrophil-to-lymphocyte ratios (NLR) among groups with different tumor size (<10 mm vs. 10-20 mm vs.>20 mm, mean NLR 1.79±0.55 vs. 2.27±1.23 vs. 2.95±0.66, P<0.01. Compared with non-metastatic group, the metastatic group presented higher NLR(2.61±0.81 vs. 1.89±0.80, P<0.01). Tumor size (<10 mm vs. 10-20 mm vs.>20 mm, OR 1.00 vs. 2.10 vs. 5.25×109, P =0.001), invasion to bowel wall (mucosa vs. submucosa vs. muscularis vs. serosa invasion,OR 1.00 vs. 3.26 vs. 14.11 vs. 39.42, P=0.008), and NLR (NLR<2.25 vs. NLR≥2.25, OR 1.00 vs. 5.19, P =0.024) were risk factors for metastasis. Conclusion: Metastasis of RNEN is related with tumor size, degree of bowel invasion and NLR. High NLR is a poor prognostic factor of RNEN.
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Affiliation(s)
- T M Xu
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Y Cheng
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P G Yan
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X He
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J N Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Liu XH, Wen YH, Cheng L, Xu TM, Wu NJ. Design, Synthesis, and Pesticidal Activities of Pyrimidin-4-amine Derivatives Bearing a 5-(Trifluoromethyl)-1,2,4-oxadiazole Moiety. J Agric Food Chem 2021; 69:6968-6980. [PMID: 34137594 DOI: 10.1021/acs.jafc.1c00236] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
It is important to discover new pesticides with new modes of action because of the increasing evolution of pesticide resistance. In this study, a series of novel pyrimidin-4-amine derivatives containing a 5-(trifluoromethyl)-1,2,4-oxadiazole moiety were designed and synthesized. Their structures were confirmed by 1H NMR, 13C NMR, and HRMS. Bioassays indicated that the 29 compounds synthesized possessed excellent insecticidal activity against Mythimna separata, Aphis medicagini, and Tetranychus cinnabarinus and fungicidal activity against Pseudoperonospora cubensis. Among these pyrimidin-4-amine compounds, 5-chloro-N-(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl)pyrimidin-4-amine (U7) and 5-bromo-N-(2-fluoro-4-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzyl)-6-(1-fluoroethyl) pyrimidin-4-amine(U8) had broad-spectrum insecticidal and fungicidal activity. The LC50 values were 3.57 ± 0.42, 4.22 ± 0.47, and 3.14 ± 0.73 mg/L for U7, U8, and flufenerim against M. separata, respectively. The EC50 values were 24.94 ± 2.13, 30.79 ± 2.21, and 3.18 ± 0.21 mg/L for U7, U8, and azoxystrobin against P. cubensis, respectively. The AChE enzymatic activity testing revealed that the enzyme activities of compounds U7, U8, and flufenerim are 0.215, 0.184, and 0.184 U/mg prot, respectively. The molecular docking results of compounds U7, U8, and flufenerim with the AChE model demonstrated the opposite docking mode between compound U7 or U8 and positive control flufenerim in the active site of AChE. The structure-activity relationships are also discussed. This work provided excellent pesticide for further optimization. Density functional theory analysis can potentially be used to design more active compounds.
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Affiliation(s)
- Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Yong-Hui Wen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Long Cheng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Ning-Jie Wu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
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Affiliation(s)
- Qing Fu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Sheng-Jie Kang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Liang-Kun Zhong
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Jie Chen
- School of Forestry & Biotechnology, Zhejiang A & F University, Hangzhou, China
| | - Cheng-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
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Fu Q, Cai PP, Cheng L, Zhong LK, Tan CX, Shen ZH, Han L, Xu TM, Liu XH. Synthesis and herbicidal activity of novel pyrazole aromatic ketone analogs as HPPD inhibitor. Pest Manag Sci 2020; 76:868-879. [PMID: 31429196 DOI: 10.1002/ps.5591] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [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: 04/03/2019] [Revised: 08/07/2019] [Accepted: 08/16/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND 4-Hydroxyphenylpyruvate dioxygenase (HPPD, EC 1.13.11.27) has been a good target for herbicide discovery. In order to discover novel HPPD herbicides, a series of pyrazole aromatic ketone analogs were designed and synthesized. RESULTS The 25 pyrazole aromatic ketone analogs synthesized were tested for herbicidal activity and compounds A1, A3, A4, A17, A20 and A25 displayed excellent herbicidal activity against Chenopodium serotinum, Stellaria media and Brassica juncea at 37.5 g ha-1 . In addition, compounds A1, A5, A9, A10, A16, A17, A20 and A25 exhibited good crop selectivity for wheat, maize and rice at 150 g ha-1 . Inhibition activities against AtHPPD proved the compounds were HPPD inhibitors. The structure-activity relationship of these pyrazole aromatic ketone analogs was studied using molecular docking. CONCLUSION These pyrazole aromatic ketone derivatives could be used as lead structures for development of HPPD herbicides against dicotyledonous weeds with further structure modification. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Qing Fu
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Peng-Peng Cai
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Long Cheng
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Liang-Kun Zhong
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Cheng-Xia Tan
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Zhong-Hua Shen
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Liang Han
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Tian-Ming Xu
- Synthesis Centre, Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Xing-Hai Liu
- Institute of Pesticide, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
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Zhong LK, Kang SJ, Tan CX, Weng JQ, Xu TM, Liu XH. Synthesis, acaricidal activities and docking study of novel acrylonitrile derivatives. ARKIVOC 2020. [DOI: 10.24820/ark.5550190.p011.074] [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: 11/23/2022] Open
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Abstract
Objectives To assess the validity of using the calibration ruler for correcting magnification of linear measurements and to explore and compare the vertical and horizontal magnification of four digital cephalometric units. Methods An acrylic box was imaged at seven sagittal positions using four digital cephalometric units: Orthopantomograph OC100, Orthopantomograph OC200, Sirona Orthophos CD, and Sirona Orthophos DS. The true linear lengths of the phantom, corrected, and uncorrected linear lengths on the images were measured and compared. The validity of measurements using the calibration ruler was assessed. The magnification values and distortion indices were calculated and compared among the four cephalometric units. Results For linear measurements on the mid-sagittal plane and averaged linear measurements on bilateral symmetric sagittal planes, the bias 1.96 STD of the calibration ruler ranged from 1% to 2% for the four cephalometric testing units. For linear measurements on the single lateral sagittal plane, the bias 1.96 STD ranged from 3% to 6%. The vertical scanning charge-coupled device cephalometric unit produced the greatest distortion, ranging from 1.029 to 0.964. Conclusion The metal millimeter calibration ruler is an accurate reference for linear measurement magnification correction. Because of unpredictability and machine specificity, the magnification and distortion of a cephalometric unit should be calibrated for the estimation of cephalometric measurement error.
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Affiliation(s)
- G Y Song
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
| | - G Li
- Department of Oral and Maxillofacial Radiology, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
| | - W H Lu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
| | - B Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
| | - T M Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, P. R. China
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Lv WX, Chen S, Xu TM, Han B. Long-term follow-up and treatment of a patient with severe skeletal open bite using temporary anchorage devices. Niger J Clin Pract 2018; 21:1678-1684. [PMID: 30560836 DOI: 10.4103/njcp.njcp_223_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
This case report presents the treatment and long-term follow-up of a patient with severe skeletal hyperdivergent open bite, Class II malocclusion, and a severely retruded chin. After failure of early treatment using high-pull headgear with a bite block during the early permanent dentition stage due to an unfavorable growth pattern, orthognathic surgery was proposed but rejected by the patient. Then, temporary anchorage devices were used to correct the occlusion and establish an acceptable overbite and overjet. The overall observation time was 8.5 years; the treatment time using fixed appliances was 3 years and 4 months. The achieved tooth position and occlusal relationship remained stable 2.5 years later without recurrence of the open bite.
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Affiliation(s)
- W X Lv
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - S Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - T M Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
| | - B Han
- Department of Orthodontics, Peking University School and Hospital of Stomatology, National Engineering Laboratory for Digital and Material Technology of Stomatology, Beijing Key Laboratory of Digital Stomatology, Beijing, China
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14
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Xu XM, Xu TM, Wei YB, Gao XX, Sun JC, Wang Y, Kong QJ, Shi JG. Low-Intensity Pulsed Ultrasound Treatment Accelerates Angiogenesis by Activating YAP/TAZ in Human Umbilical Vein Endothelial Cells. Ultrasound Med Biol 2018; 44:2655-2661. [PMID: 30205992 DOI: 10.1016/j.ultrasmedbio.2018.07.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Revised: 07/04/2018] [Accepted: 07/11/2018] [Indexed: 06/08/2023]
Abstract
As a non-invasive method, low-intensity pulsed ultrasound (LIPUS) can accelerate fracture healing. The mechanisms responsible for the enhanced fracture healing need to be studied further. Activation of YAP/TAZ, key mediators of the Hippo signaling pathway, could promote angiogenesis and vascular remodeling. The purpose of this study was to determine whether LIPUS treatment can activate YAP/TAZ. Human umbilical vein endothelial cells (HUVEC) were used. After LIPUS treatment, Western blot and immunofluorescence staining were used for YAP/TAZ activation. Small interfering RNA (siRNA) of YAP and short hairpin LATS1/2 (shLATS1/2) were used to check whether there is cross-talk with the Hippo pathway. The phosphorylated YAP (p-127 and p-397) protein increased more than 3-fold 0.5 h after LIPUS treatment (p < 0.05). TAZ protein increased 3.0-, 2.0- and 1.5-fold 0.5, 6 and 12 h after LIPUS treatment. We found that LIPUS treatment activates YAP/TAZ, which is translocated into the cell nucleus to activate target genes. This process can be inactivated by siYAP and activated by shLATS1/2. The cross-talk with the Hippo pathway can initiate angiogenesis so as to accelerate fracture healing by LIPUS.
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Affiliation(s)
- Xi-Ming Xu
- Department of Orthopedics, Spine Section, Affiliated Changzheng Hospital of the Second Military Medical University, Shanghai, China
| | - Tian-Ming Xu
- Department of Orthopedics, No. 455 Hospital of PLA, Shanghai, China
| | - Yi-Bo Wei
- Department of Stomatology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Xiao-Xiang Gao
- Department of Orthopedics, No. 455 Hospital of PLA, Shanghai, China
| | - Jing-Chuan Sun
- Department of Orthopedics, Spine Section, Affiliated Changzheng Hospital of the Second Military Medical University, Shanghai, China
| | - Yuan Wang
- Department of Orthopedics, Spine Section, Affiliated Changzheng Hospital of the Second Military Medical University, Shanghai, China
| | - Qing-Jie Kong
- Department of Orthopedics, Spine Section, Affiliated Changzheng Hospital of the Second Military Medical University, Shanghai, China
| | - Jian-Gang Shi
- Department of Orthopedics, Spine Section, Affiliated Changzheng Hospital of the Second Military Medical University, Shanghai, China.
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Cheng L, Zhao W, Shen ZH, Xu TM, Wu HK, Peng WL, Liu XH. Synthesis, Nematicidal Activity and Docking Study of Novel Pyrazole-4-Carboxamide Derivatives Against Meloidogyne incognita. LETT DRUG DES DISCOV 2018. [DOI: 10.2174/1570180815666180326150827] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Background:A series of novel 2,6-dichloro-4-(trifluoromethyl)phenyl)-3-(difluoromethyl)- 1H-pyrazole-4-carboxamide derivatives were designed and synthesized.Methods:All the title compounds were confirmed by 1H NMR and MS.Results and Conclusion:The primarily nematicidal activity results indicated that some of them exhibited moderate control efficacy against the tomato root-knot nematode disease caused by Meloidogyne incognita.
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Affiliation(s)
- Long Cheng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wen Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Zhong-Hua Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Hong-Ke Wu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wei-Li Peng
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
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16
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Fang YM, Zhang RR, Shen ZH, Tan CX, Weng JQ, Xu TM, Liu XH, Huang HY, Wu HK. Synthesis and Antifungal Activity of Some 6-tert-butyl-8-chloro-2, 3- dimethylquinolin-4-ol Derivatives against Pyricularia oryae. LETT DRUG DES DISCOV 2018. [DOI: 10.2174/1570180815666180313121735] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yue-Ming Fang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Rui-Rui Zhang
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Zhong-Hua Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Cheng-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hong-Ying Huang
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Hong-Ke Wu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, 310014, China
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Cheng L, Zhang RR, Han L, Tan CX, Weng JQ, Xu TM, Liu XH. Synthesis and Biological Activity of Some New 6-perfluoropropanyl Quinoline Derivatives. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3316] [Citation(s) in RCA: 4] [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: 12/19/2022]
Affiliation(s)
- Long Cheng
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Rui-Rui Zhang
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Liang Han
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Cheng-Xia Tan
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Jian-Quan Weng
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Xing-Hai Liu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
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18
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Li H, Yan T, Zhu Z, Bao ZW, Xu TM, Xie J, Zheng SQ, Cui MM, Liu LG. [Diagnostic value of serum chitinase-3-like protein 1 in chronic liver disease of significant fibrosis and cirrhosis]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:337-341. [PMID: 29996200 DOI: 10.3760/cma.j.issn.1007-3418.2018.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the correlation between the level of serum Chitinase-3-like protein 1 (CHI3L1) and the significant liver fibrosis and liver cirrhosis in patients with chronic liver disease, and to evaluate its diagnostic value. Methods: 165 patients with chronic liver disease were selected, liver histopathological examination was performed to detect serum CHI3L1 concentration. Four indexes of hepatic fibrosis (type III procollagen, collagen IV, laminin, hyaluronic acid), aspartate aminotransferase/platelet ratio index (APRI) and FIB-4 (fibrosis- 4) scores were based on the pathological findings of liver biopsy and compared the advantages and disadvantages of serum CHI3L1 with other methods for the diagnosis of hepatic fibrosis and liver cirrhosis. A multivariate regression analysis model was created, and receiver operating characteristic curve was analyzed. Results: The level of serum CHI3L1 increased with increase of fibrosis stage and was highest in liver cirrhosis stage. In the period of S0 to 1, the levels of S2 to 3 and S4 were 62.82 (41.40 ~ 87.20), 70.94 (48.47 to 122.60) and 141.06 (78.18 ~ 197.40), and there were statistically significant differences between the groups (P < 0.001). The area under the curve for the diagnosis of significant liver fibrosis was 0.68 (0.60 to 0.77), and 0.74 (0.65 to 0.83) for cirrhosis in CHI3L1. Multivariate regression analysis showed that CHI3L1 was an independent predictor of significant fibrosis and cirrhosis. The combined diagnostic model based on CHI3L1, collagen IV and FIB-4 scores further improved the diagnostic value. The area under the curve for the diagnosis of significant fibrosis and cirrhosis was 0.79 (0.72 to 0.86) and 0.80 (0.73 to 0.87), respectively. Conclusion: CHI3L1 has a good diagnostic value in patients with chronic liver disease with significant fibrosis and liver cirrhosis. The diagnostic model in combination with other markers like Collagen IV and FIB-4 scores could further improve the diagnostic value and is worthy of further study.
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Affiliation(s)
- H Li
- Hepatology Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - T Yan
- Hepatology Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - Z Zhu
- Clinical Laboratory, Changzhou Third People's Hospital, Changzhou 213001, China
| | - Z W Bao
- Ultrasound Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - T M Xu
- Infectious Disease Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - J Xie
- Hepatology Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - S Q Zheng
- Hepatology Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - M M Cui
- Infectious Disease Department, Changzhou Third People's Hospital, Changzhou 213001, China
| | - L G Liu
- Hepatology Department, Changzhou Third People's Hospital, Changzhou 213001, China
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19
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Dai FF, Liu Y, Xu TM, Chen G. [Exploring a new method for superimposition of pre-treatment and post-treatment mandibular digital dental casts in adults]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:271-278. [PMID: 29643526] [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: 06/08/2023]
Abstract
OBJECTIVE To explore a cone beam computed tomography (CBCT)-independent method for mandibular digital dental cast superimposition to evaluate three-dimensional (3D) mandibular tooth movement after orthodontic treatment in adults, and to evaluate the accuracy of this method. METHODS Fifteen post-extraction orthodontic treatment adults from the Department of Orthodontics, Peking University School and Hospital of Stomatology were included. All the patients had four first premolars extracted, and were treated with straight wire appliance. The pre- and post-treatment plaster dental casts and craniofacial CBCT scans were obtained. The plaster dental casts were transferred to digital dental casts by 3D laser scanning, and lateral cephalograms were created from the craniofacial CBCT scans by orthogonal projection. The lateral cephalogram-based mandibular digital dental cast superimposition was achieved by sequential maxillary dental cast superimposition registered on the palatal stable region, occlusal transfer, and adjustment of mandibular rotation and translation obtained from lateral cephalogram superimposition. The accuracy of the lateral cephalogram-based mandibular digital dental cast superimposition method was evaluated with the CBCT-based mandibular digital dental cast superimposition method as the standard reference. After mandibular digital dental cast superimposition using both methods, 3D coordinate system was established, and 3D displacements of the lower bilateral first molars, canines and central incisors were measured. Differences between the two superimposition methods in tooth displacement measurements were assessed using the paired t-test with the level of statistical significance set at P<0.05. RESULTS No significant differences were found between the lateral cephalogram-based and CBCT-based mandibular digital dental cast superimposition methods in 3D displacements of the lower first molars, and sagittal and vertical displacements of the canines and central incisors; transverse displacements of the canines and central incisors differed by (0.3±0.5) mm with statistical significance. CONCLUSION The lateral cephalogram-based mandibular digital dental cast superimposition method has the similar accuracy as the CBCT-based mandibular digital dental cast superimposition method in 3D evaluation of mandibular orthodontic tooth displacement, except for minor differences for the transverse displacements of anterior teeth. This method is applicable to adult patients with conventional orthodontic treatment records, especially the previous precious orthodontic data in the absence of CBCT scans.
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Affiliation(s)
- F F Dai
- Second Clinical Division, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100101, China
| | - Y Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - T M Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
| | - G Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
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20
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Cheng L, Shen ZH, Xu TM, Tan CX, Weng JQ, Han L, Peng WL, Liu XH. Synthesis and Nematocidal Activity of N-Substituted 3-Methyl-1H
-pyrazole-4-carboxamide Derivatives Against Meloidogyne incognita. J Heterocycl Chem 2018. [DOI: 10.1002/jhet.3123] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Long Cheng
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Zhong-Hua Shen
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Cheng-Xia Tan
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Jian-Quan Weng
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Liang Han
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Wei-Li Peng
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Xing-Hai Liu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
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21
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Fang YM, Zhang RR, Shen ZH, Wu HK, Tan CX, Weng JQ, Xu TM, Liu XH. Synthesis, Antifungal Activity, and SAR Study of Some New 6-Perfluoropropanyl Quinoline Derivatives. J Heterocycl Chem 2017. [DOI: 10.1002/jhet.3031] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Yue-Ming Fang
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Rui-Rui Zhang
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Zhong-Hua Shen
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Hong-Ke Wu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Cheng-Xia Tan
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Jian-Quan Weng
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre; Zhejiang Research Institute of Chemical Industry; Hangzhou 310023 China
| | - Xing-Hai Liu
- College of Chemical Engineering; Zhejiang University of Technology; Hangzhou 310014 China
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22
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Liu XH, Fang YM, Xie F, Zhang RR, Shen ZH, Tan CX, Weng JQ, Xu TM, Huang HY. Synthesis and in vivo fungicidal activity of some new quinoline derivatives against rice blast. Pest Manag Sci 2017; 73:1900-1907. [PMID: 28218818 DOI: 10.1002/ps.4556] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [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: 12/05/2016] [Revised: 02/15/2017] [Accepted: 02/15/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND Quinoline derivatives possess excellent fungicidal activity against rice blast, but quinoline derivatives have not been thoroughly explored as fungicides. In the process of designing new fungicides, the 1,1,1,2,3,3,3-heptafluoropropan-2-yl group was introduced in order to find new structure quinoline derivatives. RESULTS Seventeen new quinoline derivatives containing 1,1,1,2,3,3,3-heptafluoropropan-2-yl moiety were designed and synthesised. In vivo fungicidal activities of these compounds were tested against rice blast. Some of the compounds provided effective control at 100 mg L-1 , and a few compounds were effective at 10 mg L-1 . Furthermore, a density functional theory study established the structure-activity relationships of the synthesised compounds. CONCLUSION Quinoline derivatives, especially benzyl (2,3,8-trimethyl-6-(perfluoropropan-2-yl)quinolin-4-yl) carbonate, which possess good control effective against rice blast and cucumber powdery mildew, may become new lead compounds for the development of fungicides with further structure modification. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Yue-Ming Fang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Feng Xie
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Rui-Rui Zhang
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Zhong-Hua Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Chen-Xia Tan
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Jian-Quan Weng
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
| | - Hong-Ying Huang
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou, China
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Shi JJ, Ren GH, Wu NJ, Weng JQ, Xu TM, Liu XH, Tan CX. Design, synthesis and insecticidal activities of novel anthranilic diamides containing polyfluoroalkyl pyrazole moiety. CHINESE CHEM LETT 2017. [DOI: 10.1016/j.cclet.2017.05.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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24
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Zhao W, Shen ZH, Xing JH, Xu TM, Peng WL, Liu XH. Synthesis and Nematocidal Activity of Novel Pyrazole Carboxamide Derivatives Against Meloidogyne incognita. LETT DRUG DES DISCOV 2017. [DOI: 10.2174/1570180813666160930164327] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Liu XH, Zhao W, Shen ZH, Xing JH, Yuan J, Yang G, Xu TM, Peng WL. Synthesis, nematocidal activity and docking study of novel chiral 1-(3-chloropyridin-2-yl)-3-(trifluoromethyl)-1H-pyrazole-4-carboxamide derivatives. Bioorg Med Chem Lett 2016; 26:3626-8. [PMID: 27301365 DOI: 10.1016/j.bmcl.2016.06.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Revised: 05/20/2016] [Accepted: 06/03/2016] [Indexed: 10/21/2022]
Abstract
A series of novel chiral fluorinated pyrazole carboxamides derivatives were designed and synthesized. All these title compounds were confirmed by NMR and MS. The primarily nematocidal activity results indicated that some of them exhibited good control efficacy against the tomato root-knot nematode disease caused by Meloidogyne incognita. The docking results indicated that compound 5n interact with amino acid residue Tyr 121, Trp 279 of AchE via hydrogen bond.
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Affiliation(s)
- Xing-Hai Liu
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Wen Zhao
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China; Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Zhong-Hua Shen
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Jia-Hua Xing
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Jing Yuan
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Guo Yang
- College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310014, China
| | - Tian-Ming Xu
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
| | - Wei-Li Peng
- Zhejiang Base of National Southern Pesticide Research Centre, Zhejiang Research Institute of Chemical Industry, Hangzhou 310023, China
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26
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Chen G, Chen S, Zhang XY, Jiang RP, Liu Y, Shi FH, Xu TM. A new method to evaluate the positional stability of a self-drilling miniscrew. Orthod Craniofac Res 2015; 18:125-33. [PMID: 25704236 DOI: 10.1111/ocr.12065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/07/2014] [Indexed: 11/28/2022]
Abstract
OBJECTIVES To evaluate the positional stability of miniscrews during orthodontic treatment change in cone-beam computed tomography (CBCT). SETTING AND SAMPLE POPULATION Twenty adult volunteers were enrolled. METHODS In all participants, at least two maxillary first premolars were extracted because of protrusion. Each volunteer received six miniscrews in the maxilla, including two loaded miniscrews to retract anterior teeth and four unloaded miniscrews. CBCT scans were obtained at the beginning of space closure (T1) and approximately 11.8 months later (T2). Three-dimensional miniscrew models were constructed at T1 and T2, and the central axes were calculated using a principal component analysis (PCA) technique. Finally, we measured and compared the angle change of all the miniscrews from T1 to T2. RESULTS The angle change values of the unloaded and loaded miniscrews were 1.64 ± 1.25° and 1.67 ± 1.15°, respectively. No significant differences in the angle change were observed. CONCLUSION Cone-beam computed tomography images revealed both the unloaded and loaded miniscrews to be positionally stable during en-masse retraction in this study.
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Affiliation(s)
- G Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - S Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - X Y Zhang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - R P Jiang
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - Y Liu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
| | - F H Shi
- Key Lab of Machine Perception, MOE, Peking University, Beijing, China
| | - T M Xu
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
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Chen G, Chen S, Zhang XY, Jiang RP, Liu Y, Shi FH, Xu TM. Stable region for maxillary dental cast superimposition in adults, studied with the aid of stable miniscrews. Orthod Craniofac Res 2011; 14:70-9. [PMID: 21457456 DOI: 10.1111/j.1601-6343.2011.01510.x] [Citation(s) in RCA: 77] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To identify a stable and reproducible reference region to superimpose serial maxillary dental models in adult extraction cases. SETTING AND SAMPLE POPULATION Fifteen adult volunteers were enrolled. METHODS To reduce protrusion, bilateral maxillary first premolars were extracted in all volunteers. Each volunteer received six miniscrews, including two loaded miniscrews used to retract anterior teeth and four unloaded miniscrews. Impressions for maxillary models were taken at T1 (1 week after miniscrew placement) and T2 (17 months later). Dental models were created and then scanned using a laser scanner. Stability of the miniscrews was evaluated, and dental models were registered using stationary miniscrews. The palatal region, where deviation was within 0.5 mm in all subjects, was determined to be the stable region. Reproducibility of the new palatal region for 3D digital model superimposition was evaluated. RESULTS Deviation of the medial 2/3 of the palatal region between the third rugae and the line in contact with the distal surface of the bilateral maxillary first molars was within 0.5 mm. Tooth movement of 15 subjects was measured to evaluate the validity of the new 3D superimposition method. Displacements were 8.18 ± 2.94 mm (central incisor) and 2.25 ± 0.73 mm (first molar) measured by miniscrew superimposition, while values of 7.81 ± 2.53 mm (central incisor) and 2.29 ± 1.03 mm (first molar) were measured using the 3D palatal vault regional superimposition method; no significant difference was observed. CONCLUSION The medial 2/3 of the third rugae and the regional palatal vault dorsal to it is a stable region to register 3D digital models for evaluation of orthodontic tooth movement in adult patients.
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Affiliation(s)
- G Chen
- Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing, China
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Xu TM, Lin JX, Huang JF. [The mechanism and correction of overbite of the anterior teeth]. Shanghai Kou Qiang Yi Xue 1994; 3:97-9. [PMID: 15160152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- T M Xu
- Departmentof Orthodontics,School of Stomatology,Beijing University.Beijing 100081,China
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Xu TM, Lin JX, Kui H, Huang JF. Bite-opening mechanics as applied in the Begg Technique. Br J Orthod 1994; 21:189-95. [PMID: 8043568] [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: 01/28/2023]
Abstract
In the Begg Technique, factors controlling the anterior intrusive force provided by the archwire have yet to be fully clarified. The rationale for bite opening with very light forces, the effect of Class II elastics on intrusive force magnitude and the intrinsic quality of 'Australian' wire in bite opening are examined in this paper. A formula is presented which allows the intrusive force that archwires exert in different individuals to be predicted. The values derived from the formula were compared with case model measurements. It was found that the intrusive force of the archwire was affected by the length of the individual dental arch. The magnitude of this intrusive force was seen to increase gradually during the period of bite opening and appeared to be related to the use of Class II elastics. The study revealed factors which affected the magnitude of the intrusive force.
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Affiliation(s)
- T M Xu
- Department of Orthodontics, School of Stomatology, Beijing University, China
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Xu TM. [A theoretical study of bite opening with Begg technique]. Zhonghua Kou Qiang Yi Xue Za Zhi 1993; 28:346-9, 383. [PMID: 8033644] [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: 01/28/2023]
Abstract
The authors made a thorough and careful study on the Begg Stage I appliance and established a model of mechanics in accordance with the actual situation of arch wire being activated and derived a mathematical formula based on the elastic small deflection theory. This study provides not only the basis of choosing intrusive-force value for individual arches, but also the possibility of analysing dynamically the changes of intrusive- force value in the process of bite opening.
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Affiliation(s)
- T M Xu
- School of Stomatology, Beijing Medical University
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Xu TM. [Effect of class II elastics on the moving pattern of anterior teeth]. Zhonghua Kou Qiang Yi Xue Za Zhi 1993; 28:179-81. [PMID: 8275814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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Xu TM, Lin JX, Huang JF, Cai P, Tan QF. Effect of the vertical force component of Class II elastics on the anterior intrusive force of maxillary archwire. Eur J Orthod 1992; 14:280-4. [PMID: 1516660 DOI: 10.1093/ejo/14.4.280] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Class II elastics are usually employed in the treatment of excessive overbite and overjet with the Begg technique. The effect of Class II elastics on bite opening and the extent of such an effect is uncertain. This article, based on measurements of 30 cases, illustrates that the effect of the vertical component of force from Class II elastics in reducing the intrusive force generated by the anchor bands in the upper archwire is less than previously believed. The position of the circles in the archwire for intermaxillary elastics has the greatest influence on the anterior intrusive force of the upper archwire. The direction of the Class II elastics and the length of the dental arch (a negative correlation) came second, while the force actually exerted by the elastics had the smallest influence. It is, therefore, suggested that the position of the intermaxillary elastic circles should be located according to the differing clinical objectives.
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Affiliation(s)
- T M Xu
- Department of Orthodontics, School of Stomatology, Beijing Medical University, Weigongcun, Haidian District, China
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Xu TM, Lin JX. [The advances in the edgewise technique]. Zhonghua Kou Qiang Yi Xue Za Zhi 1991; 26:373-5. [PMID: 1820249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Xu TM. China: moral puzzles. Hastings Cent Rep 1990; 20:24-5. [PMID: 2318623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- T M Xu
- Beijing Medical University, China
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35
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Xu BX, Xu TM, Shen MN, Fang YZ. Determination of sub-ng ml levels of mercury in water by electrolytic deposition and electrothermal atomic-absorption spectrophotometry. Talanta 1985; 32:1016-1018. [PMID: 18963939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/1985] [Accepted: 05/03/1985] [Indexed: 05/27/2023]
Abstract
The determination of trace mercury in water samples by electrolytic deposition and electrothermal atomic-absorption spectrophotometry is described. Traces of mercury in water are preconcentrated by electrolytic reduction and deposition on a platinum wire cathode, which is then put into a graphite cup for direct atomization and measurement. The method is sensitive and simple, with a detection limit of 0.04 ng/ml. Almost all the metal ions commonly found in water samples can be tolerated, because of the selective deposition at controlled potential.
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Affiliation(s)
- B X Xu
- Department of Chemistry, East China Normal University, 3663 Chung Shan Road (N), Shanghai, People's Republic of China
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