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Xie YX, Lyu DL, Peng K, Xie HW, Jiang Y, Zhong XB, Wen XL, Fu ZW, Zhou GL, Zhao ZG, Li YC. [Reference values for carotid artery intima-media thickness among community adult dwellers in Shenzhen City]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1011-1017. [PMID: 37482738 DOI: 10.3760/cma.j.cn112150-20221207-01185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/25/2023]
Abstract
Objective: To establish reference values for carotid intima-media thickness (CIMT) of adult dwellers in Shenzhen City. Methods: The study was conducted based on the Shenzhen heart failure epidemiological survey from 2021 to 2022. In this survey, residents aged 18 years and above in Shenzhen were selected by using a multi-stage stratified random sampling method. General information, cardiovascular disease (CVD) related behavior and carotid ultrasound examination and etc. were collected from the participants. People with CVD factors, a history of atherosclerotic cardiovascular disease, carotid plaque or having no carotid ultrasound examination results were excluded. The parameter regression model based on fractional polynomial was used to establish the reference values of CIMT by age and sex. Results: A total of 2 163 healthy individuals were enrolled in the final analysis, including 576 males (26.6%) and 1 587 females (73.4%). The fractional polynomial regression of the CIMT mean and standard deviation was obtained. For men, the regression was meanCIMT=0.324 7+0.006 9×age and SDCIMT=0.076 9+0.001 2×age. For women, the regression was meanCIMT=0.354 9+0.005 4×age and SDCIMT=0.041 6+0.002 0×age. Conclusion: The age and sex reference values for CIMT of adult people in Shenzhen established in this study could provide the latest reference standards for early screening of subclinical CVD.
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Affiliation(s)
- Y X Xie
- National Clinical Research Center for Cardiovascular Diseases, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - D L Lyu
- Department of Cardiovascular Disease and diabetes Prevention and Control, Shenzhen Center for Chronic Disease Control, Shenzhen 518020,China
| | - K Peng
- National Clinical Research Center for Cardiovascular Diseases, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China
| | - H W Xie
- School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - Y Jiang
- Department of Ultrasound, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, Shenzhen 518020, China
| | - X B Zhong
- Department of Ultrasound, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, Shenzhen 518020, China
| | - X L Wen
- National Clinical Research Center for Cardiovascular Diseases, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China School of Public Health, Shantou University, Shantou 515041,China
| | - Z W Fu
- National Clinical Research Center for Cardiovascular Diseases, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China School of Public Health, Hengyang Medical School, University of South China, Hengyang 421001, China
| | - G L Zhou
- Department of Ultrasound, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen, Shenzhen 518020, China
| | - Z G Zhao
- Department of Cardiovascular Disease and diabetes Prevention and Control, Shenzhen Center for Chronic Disease Control, Shenzhen 518020,China
| | - Y C Li
- National Clinical Research Center for Cardiovascular Diseases, Shenzhen Hospital, Fuwai Hospital, Chinese Academy of Medical Sciences, Shenzhen 518057, China
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Li L, He J, Xie YX, Huang XH, Weng XT, Pan XT, Jiao YB, Zheng HH, Qiu LB, Guo WH. [A retrospective controlled study of TACE-HAIC-targeted-immune quadruple therapy for intermediate and advanced-stage hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:939-946. [PMID: 36299187 DOI: 10.3760/cma.j.cn501113-20220823-00432] [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 evaluate the efficacy and safety of transcatheter arterial chemoembolization (TACE)-hepatic arterial infusion chemotherapy (HAIC)-targeted-immune quadruple therapy in patients with intermediate and advanced-stage hepatocellular carcinoma (HCC). Methods: 101 patients with intermediate and advanced stage HCC were enrolled according to the inclusion and exclusion criteria, and then they were divided into a combination group and a control group. Patients in the combination group was treated with TACE-HAIC-targeted-immune quadruple therapy, while the control group was only treated with TACE therapy. The overall survival (OS), progression-free survival (PFS), and treatment-related adverse reactions were statistically analyzed in the two groups of patients. Statistical analysis was carried out by t-test, χ2 test, rank sum test, Kaplan-Meier curve, log-rank test, Cox regression (or proportional hazards model) analysis according to different data. Results: The tumor objective response rate and disease control rate as evaluated by mRECIST 1.1 criteria in the combination group were 80% and 94%, respectively, which were significantly higher than those in the control group, 41.2% (P<0.001) and 74.5% (P=0.007). The OS and PFS of the combination group were 15.6 months [95%CI 11.3-NA ] and 8.8 months [95%CI 6.9-12.0], respectively, which were significantly better than the control group at 6.1 months [95%CI 5.3-6.6] (P<0.001) and 3.2 months [95%CI 3.0-3.6] (P<0.001). Gastric ulcer incidence was significantly higher in the combination group (9/50, 18%) than that in the control group (2/51, 3.9%) (P=0.023). Conclusion TACE-HAIC-targeted-immune quadruple therapy is a more effective treatment mode for intermediate and advanced-stage HCC than TACE alone, and attention should be paid to the monitoring of target immune-related adverse reactions.
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Affiliation(s)
- L Li
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China The First Clinical Medical College of Fujian Medical University, Fuzhou 350005, China
| | - J He
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - Y X Xie
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - X H Huang
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - X T Weng
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - X T Pan
- United Innovation of Mengchao Hepatobiliary Technology Key Laboratory of Fujian Province, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - Y B Jiao
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - H H Zheng
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - L B Qiu
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
| | - W H Guo
- Department of Interventional Radiology, Mengchao Hepatobiliary Hospital of Fujian Medical University, Fuzhou 350025, China
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Abstract
An efficient electrochemical C(sp3)–H arylation of xanthenes using a carbon anode and platinum cathode as the electrodes is disclosed.
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Affiliation(s)
- Bin Wei
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Jing-Hao Qin
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Yong-Zheng Yang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ye-Xiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Xuan-Hui Ouyang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle, Nanchang Hangkong University, Nanchang 330063, China
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Cao AZ, Xiao YT, Wu YC, Song RJ, Xie YX, Li JH. Copper-catalyzed C–H [3 + 2] annulation of N-substituted anilines with α-carbonyl alkyl bromides via C(sp3)–Br/C(sp2)–H functionalization. Org Biomol Chem 2020; 18:2170-2174. [DOI: 10.1039/d0ob00399a] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A copper-catalyzed C–H [3 + 2] annulation of N-substituted anilines with α-carbonyl alkyl bromides for the synthesis of 3,3′-disubstituted oxindoles is developed.
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Affiliation(s)
- An-Zhu Cao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yu-Ting Xiao
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ye-Xiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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Shi HY, Cheng YF, Huang XJ, Wang Y, Suo P, Xu LP, Liu KY, Zhang XH, Yan CH, Wang FR, Sun YQ, Zhang S, Kong J, Gao YQ, Xie YX. [Clinical analysis of cytomegalovirus infection after haplotype hematopoietic stem cell transplantation in children]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:426-428. [PMID: 31207710 PMCID: PMC7342226 DOI: 10.3760/cma.j.issn.0253-2727.2019.05.015] [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] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Indexed: 11/13/2022]
Affiliation(s)
- H Y Shi
- Department of Hematology, Shanxi Children's Hospital, Taiyuan 030013, China
| | - Y F Cheng
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - X J Huang
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - Y Wang
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - P Suo
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - L P Xu
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - K Y Liu
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - X H Zhang
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - C H Yan
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - F R Wang
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - Y Q Sun
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - S Zhang
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - J Kong
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - Y Q Gao
- Peking University Institute of Hematology and Peking University People's Hospital, Beijing 100044, China
| | - Y X Xie
- Department of Hematology, Shanxi Dayi Hospital, Taiyuan 030032, China
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Xie YX, Wang Y, Huang XJ, Xu LP, Zhang XH, Liu KY, Yan CH, Wang FR, Sun YQ, Kong J, Gao YQ, Shi HY, Liu DP, Cheng YF. [Clinical analysis of hemorrhagic cystitis in children and adolescents with hematological diseases post haplo-hematopoietic stem cell transplantation]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:833-838. [PMID: 30369205 PMCID: PMC7348279 DOI: 10.3760/cma.j.issn.0253-2727.2018.10.009] [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] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
目的 观察儿童及青少年血液病患者单倍型造血干细胞移植(haplo-HSCT)后出血性膀胱炎(HC)的临床特征并探讨其影响因素。 方法 回顾性分析2015至2016年接受haplo-HSCT的89例儿童及青少年血液病患者的临床资料。 结果 全部89例患者中,≤14岁62例(儿童组)、>14~<18岁27例(青少年组);男56例,女33例;中位移植年龄10(1~17)岁;急性淋巴细胞白血病(ALL)44例,急性髓系白血病(AML)33例,急性混合细胞白血病(AHL)3例,骨髓增生异常综合征(MDS)9例。移植物来源均为骨髓+外周血干细胞。全部89例患者中32例(36%)发生HC,其中迟发型31例,早发型1例;Ⅰ度6例、Ⅱ度16例、Ⅲ度8例、Ⅳ度2例;HC发病中位时间为移植后25(2~55)d,中位持续时间为19(3~95)d;所有患儿均获得治愈。儿童组HC发病率低于青少年组[27.4%(17/62)对55.6%(15/27),χ2=6.466,P<0.05]。儿童组中<5岁组HC发生率低于5~14岁组[0(0/12)对34%(17/50),χ2=4.043,P<0.05]。 结论 HC是儿童及青少年血液病患者haplo-HSCT的常见并发症,总体预后良好,年龄是其发生的影响因素。
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Affiliation(s)
- Y X Xie
- Institute of Hematology, People's Hospital, Peking University, Beijing 100044, China
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Jiang SS, Wu YC, Luo SZ, Teng F, Song RJ, Xie YX, Li JH. Silver-mediated oxidative 1,2-alkylesterification of styrenes with nitriles and acids via C(sp3)–H functionalization. Chem Commun (Camb) 2019; 55:12805-12808. [DOI: 10.1039/c9cc06437k] [Citation(s) in RCA: 14] [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: 12/23/2022]
Abstract
A new silver-mediated 1,2-alkylesterification of alkenes with nitriles and acids promoted by a catalytic amount of nickel catalyst for producing acyloxylated nitriles has been developed via a C(sp3)–H functionalization process.
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Affiliation(s)
- Shuai-Shuai Jiang
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Yan-Chen Wu
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Shu-Zheng Luo
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Fan Teng
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ren-Jie Song
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Ye-Xiang Xie
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
| | - Jin-Heng Li
- Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle
- Nanchang Hangkong University
- Nanchang 330063
- China
- State Key Laboratory of Chemo/Biosensing and Chemometrics
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8
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Zhang TY, Shang XL, Xie YX, Lin YT, Zhang QJ, Li D, Xin YC. [The effects of postauricular injection of methylprednisolone on medium-high frequency sudden hearing loss]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:537-540. [PMID: 29798087 DOI: 10.13201/j.issn.1001-1781.2018.07.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Indexed: 11/12/2022]
Abstract
Objective:To study the effects of postauricular injection of methylprednisolone on medium-high frequency sudden hearing loss.Method:The data of 45 patients with invalid treatment who were diagnosed as medium-high frequency sudden hearing loss were retrospectively studied. They were divided into postauricular injection group and non-postauricular injection group. The treatment efficiency and hearing improvement at each frequency were compared between the two groups.Result:The improvements of hearing threshold in the non-postauricular injection group were(6.30±5.00)dB HL,(3.80±5.52)dB HL,(5.35±5.50)dB HL,(15.60±11.84)dB HL,(19.60±13.46)dB HL,(15.40±12.90)dB HL at 250, 500, 1000, 2000, 4000 and 8000Hz, respectively. The hearing improvements of the postauricular injection group were (5.35±6.22)dB HL,(2.50±3.00)dB HL,(4.65±6.60)dB HL,(23.75±10.75)dB HL,(25.75±11.73)dB HL,(30.50±14.50)dB HL at 250, 500,1000,2000,4000 and 8000Hz, respectively. There were significant differences between the two groups in hearing improvements at 2000-8000Hz. The treatment effective rates were 44% and 80% for the non-postauricular injection group and postauricular injection group respectively, which showed a significant difference(χ²=8.385P<0.05).Conclusion:Postauricular injection of methylprednisolone as a remedy treatment is safe and effective for sudden hearing loss in middle and high frequency.
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Affiliation(s)
- T Y Zhang
- Hebei North University,Zhangjiakou,075000,China
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Lin YR, Li TD, Liu F, Yun JP, Xie YX, Chen JH. [Simultaneous determination of various volatile organic compounds in urine by headspace GC-MS]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:305-307. [PMID: 29996258 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.019] [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 establish a method for determination of acetone, dichloromethane, hexane, 1, 1, 1-trichloroethane, 1, 2-dichloroethane, benzene, toluene, ethylbenzene etc organic compounds in urine by headspace gas chromatography-mass spectrometry (GC-MS) . Methods: Headspace gases of urine samples were injected into GC and determined by mass. Results: Determination of urine components were in a good linear range in their concentration range of this method. The correlation coefficients were between 0.996 and 1.000 with the detection limits between 0.1 μg/L and 4.5 μg/L, the precisions were between 1.3% and 4.6%, the recovery rates were between 86.2% and 97.4%. Conclusion: This method has the advantages of low detection limits, high accuracy, high precision and simple pretreatment, which is suitable for the determination of the content of various volatile organic compounds in urine.
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Affiliation(s)
- Y R Lin
- Shenzhen Prevention and Treatment center for Occupational Diseases, Shenzhen 518001, China
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Xie YX, Shang XL, Fan J. [The expression and clinical significance of RhoA, Ezrin and CD44 in laryngeal squamous cell carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:191-194. [PMID: 29871220 DOI: 10.13201/j.issn.1001-1781.2017.03.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the expression of RhoA, Ezrin and CD44 proteins in laryngeal squamous cell carcinoma (LSCC), and analyze their roles and mutual relations in invasion and metastasis.Method:The expressions of RhoA, Ezrin and CD44 in 68 specimens of LSCC and 35 specimens of normal laryngeal mucosa tissues were detected by immunohistochemical SABC staining. The results were correlated with clinicopathological parameters.Result:The positive expression rates of RhoA, Ezrin and CD44 in LSCC were 80.9%,82,4% and 70.6%, and the positive expression rates of RhoA, Ezrin and CD44 in normal laryngeal mucosa tissues were 28.5%, 25.7% and 20%, respectively. The expressions of RhoA, Ezrin and CD44 were significantly correlated to depth of invasion (T), lymph node metastasis (N), clinical TNM stage, tumor grade respectively (P< 0.05), but not to age, gender, smoking, tumor location (P> 0.05). The expression of RhoA was positively correlated to that of Ezrin in LSCC, and the expression of Ezrin was positively correlated to that of CD44 in LSCC too (P< 0.05).Conclusion:Our findings suggested that high expressions of RhoA, Ezrin and CD44 might play an important role in the malignant progression of invasion and metastasis of LSCC, which indicated that they might have played synergistic effects in the process.
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Affiliation(s)
- Y X Xie
- Hebei North University, Zhangjiakou, 075000, China
| | - X L Shang
- Department of Otolaryngology, the First Affiliated Hospital of Hebei North University
| | - J Fan
- Hebei North University, Zhangjiakou, 075000, China
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Song RJ, Li JH, Pan GH, Xie YX, Luo S. Synthesis of γ-Amino Esters by Copper-Catalyzed Intermolecular 1,2-Aminoalkylation of Alkenes with Amines and α-Bromoalkyl Esters. SYNTHESIS-STUTTGART 2018. [DOI: 10.1055/s-0036-1591903] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A new copper-catalyzed intermolecular 1,2-aminoalkylation of alkenes with α-bromoalkyl esters and amines for the synthesis of γ-amino esters is described. Employing the Cu(OTf)2 and 2,2′-bipyridine catalytic system, the three-component reaction allows the formation of two new chemical bonds, including one C–C bond and one C–N bond, in a single reaction, and represents a new alkene difunctionalization using a radical strategy.
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Tu B, Liu SX, Wu D, Zhang X, Shi L, Xie YX, Zhao P, Qin EQ. [Clinical features of community-acquired bloodstream infection due to Gram-negative bacilli in patients with liver cirrhosis]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:23-27. [PMID: 29804358 DOI: 10.3760/cma.j.issn.1007-3418.2018.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: o investigate the features of pathogenic bacteria for community-acquired bloodstream infection due to Gram-negative bacilli in patients with liver cirrhosis and optimal therapeutic strategy. Methods: A retrospective analysis was performed for the clinical data of patients with liver cirrhosis who were admitted to 302 Hospital of PLA due to community-acquired bloodstream infection from January 2010 to December 2015, and a statistical analysis was performed for their clinical features, pathogenic bacteria, and results of drug sensitivity test. The Pearson chi-square test was used for comparison of rates, and the Wilcoxon rank sum test was used for comparison of ranked data. Results: A total of 240 patients (including 178 male patients) with liver cirrhosis caused by various reasons were enrolled, with a mean age of 51.7 ± 11.1 years, an overall clinical remission rate of 80.42%, and an ineffective/mortality rate of 19.58%. The patients who used sensitive antibiotics within 12 hours after the onset of community-acquired bloodstream infection achieved a significantly higher improvement rate than those who used such drugs at more than 12 hours after onset (88.2% vs 58.1%, P < 0.001). The improvement rate achieved by the application of sensitive antibiotics at more than 12 hours after onset decreased with the increase in the Child-Pugh grade (P < 0.05). A total of 245 strains of Gram-negative bacilli were isolated, among which the six most common ones were 135 strains of Escherichia coli (55.1%), 62 strains of Klebsiella pneumoniae (25.3%), 16 strains of Aeromonas (6.5%), 4 strains of non-typhoidal Salmonella (1.6%), 3 strains of Enterobacter cloacae (1.2%), and 2 strains of Acinetobacter baumannii (0.8%). These Gram-negative bacilli had the highest sensitivity to meropenem (98.5%), followed by imipenem (97.9%), amikacin (97.5%), piperacillin/tazobactam (94.7%), cefmetazole (93.7%), and cefoperazone/sulbactam (93%). Different bacteria had different sensitivities to antibiotics. Conclusion: Once community-acquired bloodstream infection occurs in patients with liver cirrhosis, highly sensitive antibiotics should be used as early as possible. Cefoperazone/sulbactam, piperacillin/tazobactam, imipenem, and meropenem can be used as first-line empirical antibiotics, and drug combination should be considered when necessary.
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Affiliation(s)
- B Tu
- 302 Hospital of PLA, Beijing 100039, China
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Hu M, Li M, Tan FL, Song RJ, Xie YX, Li JH. Oxidative Divergent Bicyclizations of 1,n-Enynes through α-C(sp3)-H Functionalization of Alkyl Nitriles. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201600926] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Ming Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Meng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Fang-Lin Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Ye-Xiang Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University, Changsha 410082, China, and Key Laboratory of Jiangxi Province for Persistent Pollutants Control and Resources Recycle; Nanchang Hangkong University; Nanchang 330063 People's Republic of China
- State Key Laboratory of Applied Organic Chemistry Lanzhou University; Lanzhou 730000 People's Republic of China
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14
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Li TD, Liu F, Xie YX, Chen JH. [Determination of tert-butyl alcohol in the air of the workplace by solvent desorption gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:615-617. [PMID: 27682673 DOI: 10.3760/cma.j.issn.1001-9391.2016.08.016] [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: 06/06/2023]
Abstract
Objective: To establish solvent desorption gas chromatographic method for determination of tert-butyl alcohol in the air of the workplace. Methods: After tert-butyl alcohol in the air of the workplace collected with activated carbon tube and desorbed with 2% 2-propanol in CS2, and then separated with DB-FFAP capillary column and detected with flame ionization detector. Results: The linearity ranges were 0.6~2 264.0 mg/L. The limit of quantification was 0.6 mg/L. The determination has a good reproducibility. The intraassay and interassay precisions were 2.8%~3.2% and 3.8%~5.7%. The desorption efficiencies were 93.9%~98.1%. Absorption efficiencies were 95.8%~100.0%. The breakthrough volume was above 7.1 mg in 100mg activated carbon. The samples in activated carbon tube could be stored for at least 14 days at ambient temperature. Conclusion: The method is feasible for determination of tert-butyl alcohol in the air of the workplace.
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Affiliation(s)
- T D Li
- Shenzhen Prevention and Treatment center for Occupational Diseases, Shenzhen 518001, China
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15
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Affiliation(s)
- Xu-Heng Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Ye-Xiang Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics; College of Chemistry and Chemical Engineering; Hunan University; Changsha 410082 P.R. China
- State Key Laboratory of Applied Organic Chemistry; Lanzhou University; Lanzhou 730000 P.R. China
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16
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Tian WW, Liu DP, Bian SC, Ma LM, Wang T, Xie YX, Zhao JP, Zhao TZ. [Polycythemia vera with Good's syndrome and agranulocytosis: report of a case and literatures review]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:522-4. [PMID: 27431081 PMCID: PMC7348342 DOI: 10.3760/cma.j.issn.0253-2727.2016.06.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Indexed: 11/10/2022]
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17
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Xie YX, Li JH, Wang CY, Song RJ. Silver-Promoted Oxidative Ring Opening/Alkynylation of Cyclopropanols: Facile Synthesis of 4-Yn-1-ones. SYNTHESIS-STUTTGART 2015. [DOI: 10.1055/s-0035-1560374] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Xie YX, Li JH, Qian PC, Song RJ, Liao HY, Wang HT, Xiang JN. Synthesis of Malonates from 3-Halopropynoates, Alcohols, and Water Using DABCO. SYNTHESIS-STUTTGART 2015. [DOI: 10.1055/s-0034-1380448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- Ye-Xiang Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Peng-Cheng Qian
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Hui-Ying Liao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Hong-Tao Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Jian-Nan Xiang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
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19
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Li JH, Song RJ, Liu Y, Xie YX. Difunctionalization of Acrylamides through C–H Oxidative Radical Coupling: New Approaches to Oxindoles. SYNTHESIS-STUTTGART 2015. [DOI: 10.1055/s-0034-1379903] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Song MH, Zhu GJ, Ma L, Chen GL, Yang D, Gong JH, Xie YX, Yan Y, Wang MC. Comparative analysis of bilirubin in correlation to albumin between nephrotic syndrome patients and postoperative gastroparesis syndrome patients. Genet Mol Res 2014; 13:9403-11. [PMID: 24615116 DOI: 10.4238/2014.february.14.13] [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: 11/03/2022]
Abstract
This study aimed to disclose the potential causality of low bilirubin in patients with nephrotic syndrome (NS). Correlation analysis was carried out on total bilirubin (TBIL) to serum albumin (ALB), urine protein (Upr), and urinary microalbumin/creatinine (Umalb/cr) for three groups in a case-control study. P < 0.001 was observed for TBIL, ALB, Umalb/cr, and Upr between the NS and chronic nephritis (CN) groups, and P values of 0.0001, 1.000, 0.0001, and 0.0001 were observed for TBIL, ALB, Umalb/cr, and Upr, respectively, between the postoperative gastroparesis (PGS) and CN groups. The values of r and P in correlation to TBIL were 0.549 and 0.000 for ALB, -0.405 and 0.000 for Umalb/cr, and -0.448 and 0.000 for Upr in the NS group; -0.007 and 0.959 for ALB, 0.213 and 0.091 for Umalb/cr, and -0.082 and 0.519 for Upr in the PGS group; and 0.509 and 0.000 for ALB, -0.431 and 0.000 for Umalb/cr, and -0.362 and 0.002 for Upr in the CN group. A probable causality is implied between the low level of blood bilirubin and its loss in urine in NS patients. This conclusion may provide a theoretical basis for the feasibility of therapies against oxidative stress in NS patients.
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Affiliation(s)
- M H Song
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - G J Zhu
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - L Ma
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - G L Chen
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - D Yang
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - J H Gong
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - Y X Xie
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - Y Yan
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
| | - M C Wang
- Integrated Chinese and Western Medicine Treatment of Renal Disease Centre, Beidaihe Sanatorium of Beijing Military Area Command, Chinese PLA, Qinhuangdao, China
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21
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Xie YX, Tang RY, Song RJ, Xiang JN, Li JH. Synthesis of Benzocyclohepta[b]indoles by Lewis Acid Catalyzed Annulation of Two 3-(1H-Isochromen-1-yl)-1H-indoles. J Org Chem 2014; 79:686-91. [DOI: 10.1021/jo4024667] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ye-Xiang Xie
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Ri-Yuan Tang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
- College
of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, China
| | - Ren-Jie Song
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jian-Nan Xiang
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
| | - Jin-Heng Li
- State
Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry
and Chemical Engineering, Hunan University, Changsha 410082, China
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22
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Lu Y, Qi YX, Zhang H, Zhang HQ, Pu JJ, Xie YX. Separation and identification of Musa acuminate Colla (banana) leaf proteins by two-dimensional gel electrophoresis and mass spectrometry. Genet Mol Res 2013; 12:6871-81. [PMID: 24391035 DOI: 10.4238/2013.december.19.6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To establish a proteomic reference map of Musa acuminate Colla (banana) leaf, we separated and identified leaf proteins using two-dimensional polyacrylamide gel electrophoresis (2D-PAGE) and mass spectrometry (MS). Tryptic digests of 44 spots were subjected to peptide mass fingerprinting (PMF) by matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) MS. Three spots that were not identified by MALDI-TOF MS analysis were identified by searching against the NCBInr, SwissProt, and expressed sequence tag (EST) databases. We identified 41 unique proteins. The majority of the identified leaf proteins were found to be involved in energy metabolism. The results indicate that 2D-PAGE is a sensitive and powerful technique for the separation and identification of Musa leaf proteins. A summary of the identified proteins and their putative functions is discussed.
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Affiliation(s)
- Y Lu
- Environment and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Hainan, China
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23
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Xie YX, Song RJ, Liu Y, Liu YY, Xiang JN, Li JH. Copper-Catalyzed α-Aminoxylation of Ketones with 2,2,6,6-Tetramethylpiperidine-1-oxyl (TEMPO). Adv Synth Catal 2013. [DOI: 10.1002/adsc.201300630] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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24
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Song RJ, Xiang JN, Li JH, Xie YX, Liu Y, Wang ZQ. Base-Mediated Synthesis of 1-Aryl-4-(phenylsulfonyl)butan-1-ones from 1,2-Bis(phenylsulfonyl)ethane and Ketones. SYNTHESIS-STUTTGART 2013. [DOI: 10.1055/s-0033-1338557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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26
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Wang ZQ, Hu M, Huang XC, Gong LB, Xie YX, Li JH. Direct α-arylation of α-amino carbonyl compounds with indoles using visible light photoredox catalysis. J Org Chem 2012; 77:8705-11. [PMID: 22985461 DOI: 10.1021/jo301691h] [Citation(s) in RCA: 144] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A general and mild method for the construction of functionalized 2-(1H-indol-3-yl)-2-amino-carbonyl compounds was achieved, which represents the first example of direct α-arylation of α-amino carbonyl compounds with indoles using the visible light photoredox catalysis strategy.
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Affiliation(s)
- Zhi-Qiang Wang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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27
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Wu JC, Gong LB, Xia Y, Song RJ, Xie YX, Li JH. Nickel-Catalyzed Kumada Reaction of Tosylalkanes with Grignard Reagents to Produce Alkenes and Modified Arylketones. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205969] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Wu JC, Gong LB, Xia Y, Song RJ, Xie YX, Li JH. Nickel-Catalyzed Kumada Reaction of Tosylalkanes with Grignard Reagents to Produce Alkenes and Modified Arylketones. Angew Chem Int Ed Engl 2012; 51:9909-13. [DOI: 10.1002/anie.201205969] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Indexed: 11/09/2022]
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29
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Xie YX, Song RJ, Liu YY, Wu JC, Liu Y, Deng GB, Qi XX, Gong LB, Liu W, Li JH. Synthesis of 2,4-Bis(aryloxy)-1,5-diarylpentane-1,5-diones by Base-Mediated Tandem Reaction. SYNTHESIS-STUTTGART 2012. [DOI: 10.1055/s-0032-1316752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ye-Xiang Xie
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Ren-Jie Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Yan-Yun Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Ji-Cheng Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Yu Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Guo-Bo Deng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Xiao-Xu Qi
- Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University
| | - Lu-Bin Gong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Wei Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
| | - Jin-Heng Li
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University
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30
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Xie YX, Li JH, Wei WT, Xie P, Xia JD, Song RJ, Xiang JN. Gold-Catalyzed Skeletal Rearrangement of 1-[2-(1H-Isochromen-3-yl)aryl]ethanones with Alcohols. SYNTHESIS-STUTTGART 2012. [DOI: 10.1055/s-0031-1291152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Ye-Xiang Xie
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
| | - Jin-Heng Li
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
| | - Wen-Ting Wei
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University
| | - Peng Xie
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University
| | - Jia-Dong Xia
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University
| | - Ren-Jie Song
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
| | - Jian-Nan Xiang
- College of Chemistry and Chemical Engineering, and State Key Laboratory of Chemo/Biosensing and Chemometrics, Hunan University
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31
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Yao B, Song RJ, Liu Y, Xie YX, Li JH, Wang MK, Tang RY, Zhang XG, Deng CL. Palladium-Catalyzed CH Oxidation of Isoquinoline N-Oxides: Selective Alkylation with Dialkyl Sulfoxides and Halogenation with Dihalo sulfoxides. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201101009] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Abstract
The problem of localized bulging in inflated membrane tubes shares the same features with a variety of other localization problems such as formation of kink bands in fibre-reinforced composites and layered structures. This type of localization is known to be very sensitive to imperfections, but the precise nature of such sensitivity has not so far been quantified. In this paper, we study effects of localized wall thinning/thickening on the onset of localized bulging in inflated membrane tubes as a prototypical example. It is shown that localized wall thinning may reduce the critical pressure or circumferential stretch by an amount of the order of the square root of maximum wall thickness reduction. As a typical example, a 10 per cent maximum wall thinning may reduce the critical circumferential stretch by 19 per cent. This square root law complements the well-known Koiter's two-thirds power law for subcritical periodic bifurcations. The relevance of our results to mathematical modelling of aneurysm formation in human arteries is also discussed.
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Affiliation(s)
- Y B Fu
- Department of Mathematics, Keele University, Staffordshire, UK.
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33
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Xie YX, Li JH, Song RJ, Liu YY, Wu JC, Deng GB, Yang XH, Liu Y. Base-Mediated Tandem Reaction of α-Aryloxyacetophenones with Phosphonates: Selective Synthesis of Enol Phosphates. SYNTHESIS-STUTTGART 2012. [DOI: 10.1055/s-0031-1289717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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34
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Tang BX, Zhang YH, Song RJ, Tang DJ, Deng GB, Wang ZQ, Xie YX, Xia YZ, Li JH. Intramolecular ipso-halocyclization of 4-(p-unsubstituted-aryl)-1-alkynes leading to spiro[4,5]trienones: scope, application, and mechanistic investigations. J Org Chem 2012; 77:2837-49. [PMID: 22360308 DOI: 10.1021/jo300037n] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A new, general method for the synthesis of spiro[4,5]trienones is described by the intramolecular ipso-halocyclization of 4-(p-unsubstituted-aryl)-1-alkynes. In the presence of halide electrophiles, a variety of 4-(p-unsubstituted-aryl)-1-alkynes underwent the intramolecular ipso-halocyclization with water smoothly, affording the corresponding halo-substituted spiro[4,5]trienones in moderate to good yields. The obtained spiro[4,5]trienones can be applied in constructing the azaquaternary tricyclic skeleton via Pd-catalyzed Heck reaction. Notably, the prepared spiro[4,5]trienones and azaquaternary tricycles are of importance in the areas of pharmaceuticals and agrochemicals. The mechanism of the intramolecular ipso-halocyclization reaction is also discussed according to the (18)O-labeling experiments and DFT calculations.
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Affiliation(s)
- Bo-Xiao Tang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
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35
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Wu JC, Song RJ, Wang ZQ, Huang XC, Xie YX, Li JH. Copper-Catalyzed CH Oxidation/Cross-Coupling of α-Amino Carbonyl Compounds. Angew Chem Int Ed Engl 2012; 51:3453-7. [DOI: 10.1002/anie.201109027] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 01/15/2012] [Indexed: 11/09/2022]
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36
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Wu JC, Song RJ, Wang ZQ, Huang XC, Xie YX, Li JH. Copper-Catalyzed CH Oxidation/Cross-Coupling of α-Amino Carbonyl Compounds. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201109027] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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37
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Liu YY, Song RJ, Wu CY, Gong LB, Hu M, Wang ZQ, Xie YX, Li JH. Palladium-Catalyzed Oxidative CC Bond Cleavage Cyclization of Biaryl-2-amines with Alkenes Involving CH Olefination and Carboamination. Adv Synth Catal 2012. [DOI: 10.1002/adsc.201100651] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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38
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Lu Y, Xu WH, Xie YX, Zhang X, Pu JJ, Qi YX, Li HP. Isolation and characterization of nucleotide-binding site and C-terminal leucine-rich repeat-resistance gene candidates in bananas. Genet Mol Res 2011; 10:3098-108. [PMID: 22194165 DOI: 10.4238/2011.december.15.1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Commercial banana varieties are highly susceptible to fungal pathogens, as well as bacterial pathogens, nematodes, viruses, and insect pests. The largest known family of plant resistance genes encodes proteins with nucleotide-binding site (NBS) and C-terminal leucine-rich repeat (LRR) domains. Conserved motifs in such genes in diverse plant species offer a means for the isolation of candidate genes in banana that may be involved in plant defense. Six degenerate PCR primers were designed to target NBS and additional domains were tested on commercial banana species Musa acuminata subsp malaccensis and the Musa AAB Group propagated in vitro and plants maintained in a greenhouse. Total DNA was isolated by a modified CTAB extraction technique. Four resistance gene analogs were amplified and deposited in GenBank and assigned numbers HQ199833-HQ199836. The predicted amino acid sequences compared to the amino acid sequences of known resistance genes (MRGL1, MRGL2, MRGL3, and MRGL4) revealed significant sequence similarity. The presence of consensus domains, namely kinase-1a, kinase-2 and hydrophobic domain, provided evidence that the cloned sequences belong to the typical non-Toll/interleukin-1 receptor-like domain NBS-LRR gene family.
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Affiliation(s)
- Y Lu
- College of Natural Resources and Environment, South China Agriculture University, Wushan, China
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Tang RY, Xie YX, Xie YL, Xiang JN, Li JH. TBHP-mediated oxidative thiolation of an sp3 C-H bond adjacent to a nitrogen atom in an amide. Chem Commun (Camb) 2011; 47:12867-9. [PMID: 22037478 DOI: 10.1039/c1cc15397h] [Citation(s) in RCA: 132] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The first example of molecular sieve-promoted TBHP-mediated direct oxidative thiolation of an sp(3) C-H bond adjacent to a nitrogen atom with disulfides under metal-free conditions, which allows for preparation of numerous S,N-containing compounds, is presented. Moreover, diverse benzothiazoles and a fipronil analog can be synthesized through this strategy.
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Affiliation(s)
- Ri-Yuan Tang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China
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Tang JS, Li JH, Xie YX, Wang ZQ. Efficient Palladium-Catalyzed Suzuki-Miyaura Cross-Coupling of Iodoethynes with Arylboronic Acids under Aerobic Conditions. SYNTHESIS-STUTTGART 2011. [DOI: 10.1055/s-0030-1260126] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Li JH, Tang S, Xie YX. Correction to General and Selective Synthesis of ( Z)-3-Haloacrylates via Palladium-Catalyzed Carbonylation of Terminal Alkynes. J Org Chem 2011. [DOI: 10.1021/jo2000429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Lei Y, Wang ZQ, Xie YX, Yu SC, Tang BX, Li JH. Base-Mediated Tandem Reaction Consisting of an Acyl Shift Strategy Leading to 4,5-Disubstiuted Furan-2(5H)-ones. Adv Synth Catal 2011. [DOI: 10.1002/adsc.201000762] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Tang BX, Song RJ, Wu CY, Wang ZQ, Liu Y, Huang XC, Xie YX, Li JH. Ruthenium-catalyzed intramolecular carbocyclization of alkynes with an sp3 carbon involving an oxidative deprotonation process. Chem Sci 2011. [DOI: 10.1039/c1sc00423a] [Citation(s) in RCA: 28] [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] [Indexed: 11/21/2022] Open
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Wang ZQ, Lei Y, Zhou MB, Chen GX, Song RJ, Xie YX, Li JH. Iron-Mediated [3 + 2] or [3 + 3] Annulation of 2-(2-(Ethynyl)phenoxy)-1-arylethanones: Selective Synthesis of Indeno[1,2-c]chromenes and 5H-Naphtho[1,2-c]chromenes. Org Lett 2010; 13:14-7. [DOI: 10.1021/ol102761m] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Zhi-Qiang Wang
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Yong Lei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Ming-Bo Zhou
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Guo-Xiang Chen
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Ren-Jie Song
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Ye-Xiang Xie
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
| | - Jin-Heng Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China, and College of Chemistry and Materials Science, Wenzhou University, Wenzhou 325035, China
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Li JH, Xie YX. CO2 as both a selective agent and reaction media in palladium-catalyzed reductive Ullmann-type coupling reaction. CHINESE J CHEM 2010. [DOI: 10.1002/cjoc.20040220918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou MB, Wei WT, Xie YX, Lei Y, Li JH. Palladium-Catalyzed Cross-Coupling of Electron-Poor Terminal Alkynes with Arylboronic Acids under Ligand-Free and Aerobic Conditions. J Org Chem 2010; 75:5635-42. [DOI: 10.1021/jo101063p] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming-Bo Zhou
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Wen-Ting Wei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Ye-Xiang Xie
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Yong Lei
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
| | - Jin-Heng Li
- Key Laboratory of Chemical Biology & Traditional Chinese Medicine Research (Ministry of Education), Hunan Normal University, Changsha 410081, China
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Li JH, Tang JS, Xie YX, Wang ZQ, Deng CL. Phosphazene Base-Catalyzed Intramolecular Cascade Reactions of Aryl-Substituted Enynes. SYNTHESIS-STUTTGART 2010. [DOI: 10.1055/s-0030-1258172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Song RJ, Deng CL, Xie YX, Li JH. Solvent-free copper/iron co-catalyzed N-arylation reactions of nitrogen-containing heterocycles with trimethoxysilanes in air. Tetrahedron Lett 2007. [DOI: 10.1016/j.tetlet.2007.08.117] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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