1
|
Fan X, Dai RC, Yan XF, Tong ZS, Gong J. Clinical, Microbiological, and Molecular Characterization of Candia (Starmera) stellimalicola, a Rare Fungal Pathogen Causing Human Infections. Mycopathologia 2023; 188:345-352. [PMID: 37326820 DOI: 10.1007/s11046-023-00752-y] [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: 04/17/2023] [Accepted: 05/22/2023] [Indexed: 06/17/2023]
Abstract
Candia (Starmera) stellimalicola is a yeast species spread worldwide and recovered from varieties of ecological reservoirs, but human infections are rarely reported. In this study, we reported an intra-abdominal infection case caused by C. stellimalicola and described its microbiological and molecular characteristics. C. stellimalicola strains were isolated from ascites fluid of an 82-year-old male patient having diffuse peritonitis with fever and elevated WBC counts. Routine biochemical and MALDI-TOF MS methods failed to identify the pathogenic strains. Phylogenetic analysis of 18S, 26S and internal transcribed space (ITS) rDNA regions, as well as whole-genome sequence identified the strains as C. stellimalicola. Compared with other Starmera species, C. stellimalicola had unique physiological characteristics including thermal tolerance (able to grow at 42 °C), which may prompt its environmental adaptability and potential for opportunistic human infection. Fluconazole minimum inhibitory concentration (MIC) values of the strains identified in this case was 2 mg/L, and the patient had a favorable outcome after receiving fluconazole treatment. In comparison, the majority of C. stellimalicola strains previously documented had high MIC values (≥ 16 mg/L) to fluconazole. In conclusion, with the raise in human infections caused by rare fungal pathogens, molecular diagnostic remains the most efficient way for accurate species identification; and antifungal susceptibility testing is essential to guide proper patient management.
Collapse
Affiliation(s)
- Xin Fan
- Department of Infectious Diseases and Clinical Microbiology, Beijing Institute of Respiratory Medicine and Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
- State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, China
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
| | - Rong-Chen Dai
- Beijing Key Laboratory for Mechanisms Research and Precision Diagnosis of Invasive Fungal Diseases, Beijing, China
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Feng Yan
- Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - Zhong-Shan Tong
- Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China.
| | - Jie Gong
- State Key Laboratory of Infectious Disease Prevention and Control, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.
| |
Collapse
|
2
|
Yan XF, Sun YQ, Li QW. Two new supramolecular Ag(I) coordination polymers: luminescent properties and treatment activity on glioblastoma. Des Monomers Polym 2022; 25:47-54. [PMID: 35250361 PMCID: PMC8890539 DOI: 10.1080/15685551.2022.2041785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Two new Ag(I) coordination polymers, namely [Ag(bpp)]·0.5 n(1,5-NDSA)·n(H2O) (1) and [Ag2(bpp)2]n·n(2,7-NDSA)·2 n(H2O)·n(CH3CN) (2) (Na2(1,5-NDSA) = sodium 1,5-naphthalenedisulfonate dibasic, Na2(2,7-NDSA) = sodium 1,5-naphthalenedisulfonate dibasic, bpp is 1,3-bis(4-pyridyl)propane), were generated via the solution evaporation method under room temperature. Moreover, the solids of these two compounds display strong luminescence emission at RT. And the application values of the compounds against the glioblastoma treatment were determined, and the corresponding mechanism was simultaneously tested. The analysis of CCK-8 was first implemented and the glioblastoma viability was measured. The real-time RT-PCR was next performed, and the signaling pathway activation of VEGF in glioblastoma cells was tested after treating by the above compound.
Collapse
Affiliation(s)
- Xiao-Feng Yan
- Department of Clinical Laboratory, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - Yu-Qiang Sun
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| | - Qing-Wei Li
- Department of Neurosurgery, Heilongjiang Provincial Hospital, Harbin, Heilongjiang, China
| |
Collapse
|
3
|
Zhu YW, Li D, Ye TJ, Qiu FJ, Wang XL, Yan XF, Lu YL, Xu W, Li H, Hu XD. The Study of Yin-Chen-Hao-Tang Preventing and Treating Alcoholic Fatty Liver Disease through PPAR Signaling Pathway Based on Network Pharmacology and RNA-Seq Transcriptomics. Evid Based Complement Alternat Med 2021; 2021:8917993. [PMID: 35003311 PMCID: PMC8741355 DOI: 10.1155/2021/8917993] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Revised: 11/15/2021] [Accepted: 12/09/2021] [Indexed: 12/30/2022]
Abstract
BACKGROUND Alcoholic fatty liver disease (AFLD) is the first stage of the alcoholic liver disease course. Yin-Chen-Hao-Tang (YCHT) has a good clinical effect on the treatment of AFLD, but its molecular mechanism has not been elucidated. In this study, we tried to explore the molecular mechanism of YCHT in improving hepatocyte steatosis in AFLD mice through network pharmacology and RNA sequencing (RNA-Seq) transcriptomics. METHODS Network pharmacological methods were used to analyze the potential therapeutic signaling pathways and targets of YCHT on AFLD. Then, the AFLD mice model was induced and YCHT was administered concurrently. Liver injury was measured by serum alanine aminotransferase (ALT) activity and liver tissue H&E staining, and liver steatosis was determined by serum triglyceride (TG) level and liver tissue Oil Red staining. The molecular mechanism of YCHT on prevention and treatment of mice AFLD was investigated according to the Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis of the differential expression genes data obtained by liver tissue RNA-Seq. Finally, ethanol-induced AFLD AML12 hepatocyte model was established, YCHT with or without PPARα agonist pemafibrate or PPARγ inhibitor GW9662 was administered, Nile Red fluorescent staining was used to evaluate steatosis levels in AML12 hepatocytes, and qRT-PCR was used to detect PPARα and PPARγ gene expression. RESULTS The results of network pharmacology analysis showed that YCHT may exert its pharmacological effect on AFLD through 312 potential targets which are involved in many signaling pathways including the PPAR signaling pathway. AFLD mice experiments results showed that YCHT markedly decreased mice serum ALT activity and serum TG levels. YCHT also significantly improved alcohol-induced hepatic injury and steatosis in mice livers. Furthermore, KEGG pathway enrichment results of RNA-Seq showed that the PPAR signaling pathway should be the most relevant pathway of YCHT in the prevention and treatment of AFLD. AFLD hepatocyte model experiment results showed that YCHT could remarkably reduce hepatocyte steatosis through reducing PPARγ expression and increasing PPARα expression. CONCLUSIONS Our study discovered that PPARγ and PPARα are the key targets and the PPAR signaling pathway is the main signaling pathway for YCHT to prevent and treat AFLD.
Collapse
Affiliation(s)
- Yi-Wei Zhu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Du Li
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Ting-Jie Ye
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Feng-Jun Qiu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiao-Ling Wang
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiao-Feng Yan
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan-Lin Lu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Wei Xu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hua Li
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xu-Dong Hu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| |
Collapse
|
4
|
Yang S, Guo JQ, Yan XF, Tang SJ. [Interpretation of clinical practice guideline on the treatment of nontuberculous mycobacterial pulmonary disease: Euro‑American 2020 edition]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:699-704. [PMID: 34645135 DOI: 10.3760/cma.j.cn112147-20210222-00115] [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: 06/13/2023]
|
5
|
Li XJ, Yang L, Yan XF, Zhan CT, Liu JH. Granulomatosis with polyangiitis presenting as high fever with diffuse alveolar hemorrhage and otitis media: A case report. World J Clin Cases 2021; 9:2344-2351. [PMID: 33869612 PMCID: PMC8026843 DOI: 10.12998/wjcc.v9.i10.2344] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Revised: 12/03/2020] [Accepted: 02/11/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Granulomatosis with polyangiitis is a necrotizing inflammation of small and medium-sized vessels accompanied by formation of granuloma, involvement of primary granulomatous upper and lower respiratory tracts, glomerulonephritis, and vasculitis of small vessels.
CASE SUMMARY Herein, we described a case of a 52-year-old man admitted with pulmonary nodules and high fever. Autoantibody workup revealed that the patient was positive for c-anti-neutrophil cytoplasmic antibodies and proteinase-3 anti-neutrophil cytoplasmic antibodies. Pulmonary biopsies revealed a local granulomatous structure. The patient received therapy with methylprednisolone and intravenous immunoglobulin, and his clinical symptoms improved.
CONCLUSION Intravenous immunoglobulin may act on granulomatosis with polyangiitis similar to immunosuppressants.
Collapse
Affiliation(s)
- Xiao-Jie Li
- Department of General Practice, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
| | - Liu Yang
- Department of General Practice, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
| | - Xiao-Feng Yan
- Department of General Practice, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
| | - Chu-Ting Zhan
- Department of General Practice, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
| | - Jiang-Hua Liu
- Department of General Practice, The Second Affiliated Hospital of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
- Department of General Practice, General Practice School of Guangxi Medical University, Nanning 530007, Guangxi Zhuang Autonomous Region, China
| |
Collapse
|
6
|
Gao JT, Du J, Wu GH, Pei Y, Gao MQ, Martinez L, Fan L, Chen W, Xie L, Chen Y, Wang H, Jin L, Li GB, Zong PL, Xiong Y, Wu QH, Li MW, Yan XF, Miao YF, Cai QS, Li XJ, Bai DP, Geng SJ, Yang GL, Tang PJ, Zeng Y, Chen XH, Li TX, Cai C, Zhou Y, Zhuo M, Wang JY, Guan WL, Xu L, Shi JC, Shu W, Cheng LL, Teng F, Ning YJ, Xie SH, Sun YX, Zhang LJ, Liu YH. Bedaquiline-containing regimens in patients with pulmonary multidrug-resistant tuberculosis in China: focus on the safety. Infect Dis Poverty 2021; 10:32. [PMID: 33736710 PMCID: PMC7977294 DOI: 10.1186/s40249-021-00819-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Accepted: 03/05/2021] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND World Health Organization recommends countries introducing new drug and short treatment regimen for drug resistant tuberculosis (DR-TB) should develop and implement a system for active pharmacovigilance that allows for detection, reporting and management of adverse events. The aim of the study is to evaluate the frequency and severity of adverse events (AEs) of bedaquiline-containing regimen in a cohort of Chinese patients with multidrug-resistant (MDR)/extensively drug-resistant (XDR)-TB based on active drug safety monitoring (aDSM) system of New Drug Introduction and Protection Program (NDIP). METHODS AEs were prospectively collected with demographic, bacteriological, radiological and clinical data from 54 sites throughout China at patient enrollment and during treatment between February, 2018 and December, 2019. This is an interim analysis including patients who are still on treatment and those that have completed treatment. A descriptive analysis was performed on the patients evaluated in the cohort. RESULTS By December 31, 2019, a total of 1162 patients received bedaquiline-containing anti-TB treatment. Overall, 1563 AEs were reported, 66.9% were classified as minor (Grade 1-2) and 33.1% as serious (Grade 3-5). The median duration of bedaquiline treatment was 167.0 [interquartile range (IQR): 75-169] days. 86 (7.4%) patients received 36-week prolonged treatment with bedaquiline. The incidence of AEs and serious AEs was 47.1% and 7.8%, respectively. The most frequently reported AEs were QT prolongation (24.7%) and hepatotoxicity (16.4%). There were 14 (1.2%) AEs leading to death. Out of patients with available corrected QT interval by Fridericia's formula (QTcF) data, 3.1% (32/1044) experienced a post-baseline QTcF ≥ 500 ms, and 15.7% (132/839) had at least one change of QTcF ≥ 60 ms from baseline. 49 (4.2%) patients had QT prolonged AEs leading to bedaquiline withdrawal. One hundred and ninety patients reported 361 AEs with hepatotoxicity ranking the second with high occurrence. Thirty-four patients reported 43 AEs of hepatic injury referred to bedaquiline, much lower than that referred to protionamide, pyrazinamide and para-aminosalicylic acid individually. CONCLUSIONS Bedaquiline was generally well-tolerated with few safety concerns in this clinical patient population without any new safety signal identified. The mortality rate was generally low. These data inform significant positive effect to support the WHO recent recommendations for the wide use of bedaquiline.
Collapse
Affiliation(s)
- Jing-Tao Gao
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Juan Du
- Department of Tuberculosis, Wuhan Pulmonary Hospital, Wuhan, People's Republic of China
| | - Gui-Hui Wu
- Department of Tuberculosis, Chengdu Public Health Clinical Center, Chengdu, People's Republic of China
| | - Yi Pei
- Department of Tuberculosis, Changsha Central Hospital, Changsha, People's Republic of China
| | - Meng-Qiu Gao
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, People's Republic of China
| | - Leonardo Martinez
- Division of Infectious Diseases and Geographic Medicine, School of Medicine, Stanford University, Palo Alto, CA, USA
| | - Lin Fan
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Shanghai, People's Republic of China
| | - Wei Chen
- Department of Tuberculosis, Shenyang Chest Hospital, Shenyang, People's Republic of China
| | - Li Xie
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, People's Republic of China
| | - Yu Chen
- Department of Tuberculosis, The Sixth People's Hospital of Zhengzhou, Zhengzhou, People's Republic of China
| | - Hua Wang
- Department of Tuberculosis, Anhui Chest Hospital, Hefei, People's Republic of China
| | - Long Jin
- Department of Tuberculosis, Infectious Diseases Hospital Heilongjiang Province, Harbin, People's Republic of China
| | - Guo-Bao Li
- Department of Tuberculosis, The Third People's Hospital of Shenzhen, Shenzhen, People's Republic of China
| | - Pei-Lan Zong
- Department of Tuberculosis, Jiangxi Chest (Third People) Hospital, Nanchang, People's Republic of China
| | - Yu Xiong
- Department of Tuberculosis, Shandong Provincial Chest Hospital, Jinan, People's Republic of China
| | - Qian-Hong Wu
- Department of Tuberculosis, Shanxi Provincial Tuberculosis Institute, Xi'an, People's Republic of China
| | - Ming-Wu Li
- Department of Tuberculosis, Kunming Third People's Hospital, Kunming, People's Republic of China
| | - Xiao-Feng Yan
- Department of Tuberculosis, Chongqing Public Health Medical Center, Chongqing, People's Republic of China
| | - Yan-Fang Miao
- Department of Tuberculosis, The Fourth People's Hospital of Taiyuan, Taiyuan, People's Republic of China
| | - Qing-Shan Cai
- Department of Tuberculosis, Hangzhou Red Cross Hospital, Hangzhou, People's Republic of China
| | - Xin-Jie Li
- Department of Tuberculosis, Guangzhou Chest Hospital, Guangzhou, People's Republic of China
| | - Da-Peng Bai
- Department of Tuberculosis, Tianjin Haihe Hospital, Tianjin, People's Republic of China
| | - Shu-Jun Geng
- Department of Tuberculosis, Hebei Chest Hospital, Shijiazhuang, People's Republic of China
| | - Guo-Li Yang
- Department of Tuberculosis, Tuberculosis Hospital of Jilin Province, Changchun, People's Republic of China
| | - Pei-Jun Tang
- Department of Tuberculosis, The Fifth People's Hospital of Suzhou, Infectious Disease Hospital, Affiliated to Soochow University, Suzhou, People's Republic of China
| | - Yi Zeng
- Department of Tuberculosis, The Second Hospital of Nanjing, Nanjing, People's Republic of China
| | - Xiao-Hong Chen
- Department of Tuberculosis, Fuzhou Pulmonary Hospital of Fujian, Fuzhou, People's Republic of China
| | - Tong-Xia Li
- Department of Tuberculosis, Qingdao Chest Hospital, Qingdao, People's Republic of China
| | - Cui Cai
- Department of Tuberculosis, Guiyang Public Health Clinical Center, Guiyang, People's Republic of China
| | - Yun Zhou
- Department of Tuberculosis, The Second Affiliated Hospital of Hainan Medical University, Haikou, People's Republic of China
| | - Ma Zhuo
- Department of Tuberculosis, The Fourth People's Hospital of QingHai Province, Xining, People's Republic of China
| | - Jian-Yun Wang
- Department of Tuberculosis, Lanzhou Pulmonary Hospital, Lanzhou, People's Republic of China
| | - Wen-Long Guan
- Department of Tuberculosis, Chest Hospital of Xinjiang Uyghur Autonomous Region of the PRC, Urumchi, People's Republic of China
| | - Lin Xu
- Department of Tuberculosis, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, People's Republic of China
| | - Ji-Chan Shi
- Department of Tuberculosis, Wenzhou Central Hospital, Wenzhou, People's Republic of China
| | - Wei Shu
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Li-Li Cheng
- Beijing Innovation Alliance of TB Diagnosis and Treatment, Beijing, People's Republic of China
| | - Fei Teng
- Beijing Innovation Alliance of TB Diagnosis and Treatment, Beijing, People's Republic of China
| | - Yu-Jia Ning
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Shi-Heng Xie
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Yu-Xian Sun
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Li-Jie Zhang
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China
| | - Yu-Hong Liu
- Clinical Center on TB, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, No 9, Beiguan Street, Tongzhou District, Beijing, 101149, People's Republic of China.
| |
Collapse
|
7
|
Zhu YW, Yan XF, Ye TJ, Hu J, Wang XL, Qiu FJ, Liu CH, Hu XD. Analyzing the potential therapeutic mechanism of Huashi Baidu Decoction on severe COVID-19 through integrating network pharmacological methods. J Tradit Complement Med 2021; 11:180-187. [PMID: 33520684 PMCID: PMC7834580 DOI: 10.1016/j.jtcme.2021.01.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 02/08/2023] Open
Abstract
Background and aim Huashi Baidu Decoction (HSBD) is a novel complex prescription which has positive effects on severe COVID-19. This study was aimed to discover key Chinese materia medica, main active compounds, hub therapeutic target proteins and core signal pathways in the potential therapeutic mechanism of HSBD on severe COVID-19 through integrating network pharmacological methods. Experimental procedure TCMSP, TCMID and STITCH databases were used to screen out active compounds and target proteins of HSBD. GeneCards database was used to screen out disease genes of severe COVID-19. The potential therapeutic targets of HSBD on severe COVID-19 were used to construct protein-protein interaction network through STRING database and the hub target proteins were discovered. Next, GO and KEGG enrichment analysis were carried out to discover core signal pathways. Finally, the network diagram of “Chinese materia medica-active compounds-therapeutic target proteins” was built, then key Chinese materia medica and main active compounds were selected. Results and conclusion HSBD might treat severe COVID-19 through 45 potential target genes, among them, there were 13 hub target genes: RELA, TNF, IL6, IL1B, MAPK14, TP53, CXCL8, MAPK3, MAPK1, IL4, MAPK8, CASP8, STAT1. Meanswhile, GO_BiologicalProcess and KEGG signaling pathways analysis results showed that the core signal pathways were inflammation and immune regulation pathways. Finally, 4 key Chinese materia medica and 11 main active compounds were discovered in the HSBD. In conclusion, the therapeutic mechanism of HSBD on severe COVID-19 might involve its pharmacological effects of anti-inflammation and immune regulation via acting on 45 disease-related proteins of severe COVID-19. Taxonomy (classification by evise) Viral Pneumonia, COVID-19, Acute Respiratory Distress Syndrome, Septic Shock, Chinese Herbal Medicine. The potential therapeutic mechanisms of HSBD on severe COVID-19 are demonstrated. Anti-inflammation and immune regulation are the main therapeutic mechanisms. Multi-target therapy is a promising treatment strategy to cure severe COVID-19.
Collapse
Affiliation(s)
- Yi-Wei Zhu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Xiao-Feng Yan
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Ting-Jie Ye
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Jing Hu
- Department of Warm Febrile Disease, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Xiao-Ling Wang
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Feng-Jun Qiu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Cheng-Hai Liu
- Institute of Liver Diseases, Shuguang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Xu-Dong Hu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| |
Collapse
|
8
|
Yang S, Wang LL, Yan XF, Tang SJ. [Reasearch progress in drug therapy of non-tuberculous mycobacterial disease]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:44-49. [PMID: 33412623 DOI: 10.3760/cma.j.cn112147-20200227-00199] [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: 06/12/2023]
|
9
|
Chang D, Yan XF, Cliff D, Wang S. [Pay attention to silicosis of sandblasting jeans workers]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 38:551-552. [PMID: 32746586 DOI: 10.3760/cma.j.cn121094-20190916-00377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
10
|
Zhou YH, Li H, Qin YY, Yan XF, Lu YQ, Liu HL, Ye SK, Wan Y, Zhang L, Harypursat V, Chen Y. Predictive factors of progression to severe COVID-19. Open Med (Wars) 2020; 15:805-814. [PMID: 33336038 PMCID: PMC7712375 DOI: 10.1515/med-2020-0184] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 06/11/2020] [Accepted: 06/14/2020] [Indexed: 12/28/2022] Open
Abstract
Aim Early diagnosis and treatment are crucial for the survival of severe Coronavirus Disease 2019 (COVID-19) patients, but data with regard to risk factors for disease progression from milder COVID-19 to severe COVID-19 remain scarce. Methods We conducted a retrospective analysis on 116 patients. Results Three factors were observed to be independently associated with progression to severe COVID-19 during 14 days after admission: (a) age 65 years or older (hazard ratio [HR] = 8.456; 95% CI: 2.706–26.426); (b) creatine kinase (CK) ≥ 180 U/L (HR = 3.667; 95% CI: 1.253–10.733); and (c) CD4+ T-cell counts <300 cells/µL (HR = 4.695; 95% CI: 1.483–14.856). The difference in rates of severe COVID-19 development was found to be statistically significant between patients aged 65 years or older (46.2%) and those younger than 65 years (90.2%), between patients with CK ≥ 180 U/L (55.6%) and those with CK < 180 U/L (91.5%), and between patients with CD4+ T-cell counts <300 cells/µL (53.8%) and those with CD4+ cell counts ≥300 cells/µL (83.2%). Conclusions Age ≥ 65 years, CK ≥ 180 U/L, and CD4+ T-cell counts <300 cells/µL at admission were risk factors independently associated with disease progression to severe COVID-19 during 14 days after admission and are therefore potential markers for disease progression in patients with milder COVID-19.
Collapse
Affiliation(s)
- Yi-Hong Zhou
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Huan Li
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yuan-Yuan Qin
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Xiao-Feng Yan
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yan-Qiu Lu
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Hong-Lan Liu
- Department of Tuberculosis, Chongqing Public Health Medical Center, Chongqing, China
| | - Si-Kuan Ye
- Department of Tuberculosis, Chongqing Public Health Medical Center, Chongqing, China
| | - Yan Wan
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Lu Zhang
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Vijay Harypursat
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| | - Yaokai Chen
- Department of Infectious Diseases, Chongqing Public Health Medical Center, No. 109 Baoyu Road, Shapingba, Chongqing, 400036, China
| |
Collapse
|
11
|
Zhang SY, Fu JY, Guo XY, Wu DZ, Zhang T, Li C, Qiu L, Shao CR, Xiao HP, Chu NH, Deng QY, Zhang X, Yan XF, Wang ZL, Zhang ZJ, Jiang X, Zheng YJ, Zheng PY, Zhang HY, Lu ZH. Improvement cues of lesion absorption using the adjuvant therapy of traditional Chinese medicine Qinbudan tablet for retreatment pulmonary tuberculosis with standard anti-tuberculosis regimen. Infect Dis Poverty 2020; 9:50. [PMID: 32381098 PMCID: PMC7203794 DOI: 10.1186/s40249-020-00660-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Accepted: 04/08/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND China is the second highest pulmonary tuberculosis (PTB) burden country worldwide. However, retreatment of PTB has often developed resistance to at least one of the four first-line anti-TB drugs. The cure rate (approximately 50.0-73.3%) and management of retreatment of PTB in China needs to be improved. Qinbudan decoction has been widely used to treat PTB in China since the 1960s. Previously clinical studies have shown that the Qinbudan tablet (QBDT) promoted sputum-culture negative conversion and lesion absorption. However, powerful evidence from a randomized controlled clinical trial is lacking. Therefore, the aim of this study was to compare the efficacy and safety of QBDT as an adjunct therapy for retreatment of PTB. METHODS We conducted a multicenter, randomized, double-blind, placebo-controlled clinical trial in China. People diagnosed with PTB were enrolled who received previous anti-TB treatment from April 2011 to March 2013. The treatment group received an anti-TB regimen and QBDT, and the control group was administered an anti-TB regimen plus placebo. Anti-TB treatment options included isoniazid, rifampicin, pyrazinamide, ethambutol, streptomycin for 2 months (2HRZES), followed by isoniazid, rifampicin, ethambutol for 6 months (6HRE), daily for 8 months. Primary outcome was sputum-culture conversion using the MGIT 960 liquid medium method. Secondary outcomes included lung lesion absorption and cavity closure. Adverse events and reactions were observed after treatment. A structured questionnaire was used to record demographic information and clinical symptoms of all subjects. Data analysis was performed by SPSS 25.0 software in the full analysis set (FAS) population. RESULTS One hundred eighty-one cases of retreatment PTB were randomly divided into two groups: the placebo group (88 cases) and the QBDT group (93 cases). A total of 166 patients completed the trial and 15 patients lost to follow-up. The culture conversion rate of the QBDT group and placebo group did not show a noticeable improvement by using the covariate sites to correct the rate differences (79.6% vs 69.3%; rate difference = 0.10, 95% confidence interval (CI): - 0.02-0.23; F = 2.48, P = 0.12) after treatment. A significant 16.6% increase in lesion absorption was observed in the QBDT group when compared with the placebo group (67.7% vs 51.1%; rate difference = 0.17, 95% CI: 0.02-0.31; χ2 = 5.56, P = 0.02). The intervention and placebo group did not differ in terms of cavity closure (25.5% vs 21.1%; rate difference = 0.04, 95% CI: - 0.21-0.12; χ2 = 0.27, P = 0.60). Two patients who received chemotherapy and combined QBDT reported pruritus/nausea and vomiting. CONCLUSIONS No significant improvement in culture conversion was observed for retreatment PTB with traditional Chinese medicine plus standard anti-TB regimen. However, QBDT as an adjunct therapy significantly promoted lesion absorption, thereby reducing lung injury due to Mycobacterium tuberculosis infection. TRIAL REGISTRATION This trial is registered at ClinicalTrials.gov, NCT02313610.
Collapse
Affiliation(s)
- Shao-Yan Zhang
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Ji-You Fu
- Shanghai University of Traditional Chinese Medicine, 1200 Cai Lun Road, Shanghai, 201203, People's Republic of China
| | - Xiao-Yan Guo
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Ding-Zhong Wu
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Tong Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Cui Li
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Lei Qiu
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Chang-Rong Shao
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - He-Ping Xiao
- Department of Tuberculosis, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, 200433, People's Republic of China
| | - Nai-Hui Chu
- Department of Tuberculosis, Beijing Chest Hospital, Capital Medical University, Beijing, 101149, People's Republic of China
| | - Qun-Yi Deng
- Department of Tuberculosis, Shenzhen Third People's Hospital, Shenzhen University School of Medicine, Shenzhen, 518000, People's Republic of China
| | - Xia Zhang
- Department of Tuberculosis, The Second Hospital of Nanjing, Nanjing, 210003, People's Republic of China
| | - Xiao-Feng Yan
- Department of Tuberculosis, Chongqing Public Health Medical Center, Chongqing, 400036, People's Republic of China
| | - Zhao-Long Wang
- Jinghua Pharmaceutical Group Co., Ltd, Nantong, 226005, People's Republic of China
| | - Zhi-Jie Zhang
- Department of Biostatistics and Department of Epidemiology, School of Public Health, Fudan University, Shanghai, 200433, People's Republic of China
| | - Xin Jiang
- Department of Immunology and Microbiology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Yue-Juan Zheng
- Department of Immunology and Microbiology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, People's Republic of China
| | - Pei-Yong Zheng
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Hui-Yong Zhang
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China
| | - Zhen-Hui Lu
- Longhua Hospital Shanghai University of Traditional Chinese Medicine, 725 South Wanping Road, Shanghai, 200032, People's Republic of China.
| |
Collapse
|
12
|
Abstract
To improve clinical outcomes for patients with traumatic brain injury (TBI), it is necessary to explore the mechanism of traumatic brain injury (TBI)-induced neuroinflammation. Connective tissue growth factors (CTGF) have been reported to be involved in the process of inflammatory response or tissue repair, whereas whether and how CTGF participates in the astrocyte-mediated inflammation after TBI remains unclear. In the present study, the TBI-induced activation of astrocytes and augmentation of inflammatory response were simulated by stimulating rat astrocytes with TGF-β1 or CTGF in cultured conditions. TGF-β1 and CTGF both upregulated the expression of GFAP in astrocytes and facilitated the production of inflammatory cytokines and chemokines. Activation of astrocytes by CTGF is in an autocrine manner. According to the results of Boyden chamber assay, CTGF enhanced the recruitment of peripheral blood mononuclear cells (PBMCs) by reactive astrocytes. Besides, CTGF-mediated activation of astrocytes and augmentation of inflammatory response can be terminated by the inhibitor of ASK1 or p38 and JNK. Thus, our data suggested that CTGF could activate astrocytes in an autocrine manner and promote astrocyte-mediated inflammatory response by triggering the ASK1-p38/JNK-NF-κB/AP-1 pathways in astrocytes. Collectively, our study provided evidence that astrocyte-secreted CTGF serves as an amplifier of neuroinflammatory and could be a potential target for alleviating TBI-induced inflammation.
Collapse
Affiliation(s)
- Ming Lu
- Department of Neurosurgery, The First People's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou, 311200, China
| | - Xiao-Feng Yan
- Department of Neurosurgery, The First People's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou, 311200, China.
| | - Yun Si
- Department of Neurosurgery, The First People's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou, 311200, China
| | - Xin-Zhi Chen
- Department of Neurosurgery, The First People's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou, 311200, China
| |
Collapse
|
13
|
Jiang JX, Shen HJ, Guan Y, Jia YL, Shen J, Liu Q, Xie QM, Yan XF. ZDHXB-101 (3',5-Diallyl-2, 4'-dihydroxy-[1,1'-biphen-yl]-3,5'-dicarbaldehyde) protects against airway remodeling and hyperresponsiveness via inhibiting both the activation of the mitogen-activated protein kinase and the signal transducer and activator of transcription-3 signaling pathways. Respir Res 2020; 21:22. [PMID: 31931796 PMCID: PMC6958776 DOI: 10.1186/s12931-020-1281-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Accepted: 01/05/2020] [Indexed: 02/12/2023] Open
Abstract
Airway remodeling consists of the structural changes of airway walls, which is often considered the result of longstanding airway inflammation, but it may be present to an equivalent degree in the airways of children with asthma, raising the need for early and specific therapeutic interventions. The arachidonic acid cytochrome P-450 (CYP) pathway has thus far received relatively little attention in its relation to asthma. In this study, we studied the inhibition of soluble epoxide hydrolase (sEH) on airway remodeling and hyperresponsiveness (AHR) in a chronic asthmatic model which long-term exposure to antigen over a period of 12 weeks. The expression of sEH and CYP2J2, the level of 14, 15-epoxyeicosatrienoic acids (EETs), airway remodeling, hyperresponsiveness and inflammation were analyzed to determine the inhibition of sEH. The intragastric administration of 3 or 10 mg/kg ZDHXB-101, which is a structural derivative of natural product honokiol and a novel soluble epoxide hydrolase (sEH) inhibitor, daily for 9 weeks significantly increased the level of 14, 15-EETs by inhibiting the expression of sEH and increasing the expression of CYP2J2 in lung tissues. ZDHXB-101 reduced the expression of remodeling-related markers such as interleukin (IL)-13, IL-17, MMP-9 N-cadherin, α-smooth muscle actin, S100A4, Twist, goblet cell metaplasia, and collagen deposition in the lung tissue or in bronchoalveolar lavage fluid. Moreover, ZDHXB-101 alleviated AHR, which is an indicator that is used to evaluate the airway remodeling function. The inhibitory effects of ZDHXB-101 were demonstrated to be related to its direct inhibition of the extracellular signal-regulated kinase (Erk1/2) phosphorylation, as well as inhibition of c-Jun N-terminal kinases (JNK) and the signal transducer and activator of transcription-3 (STAT3) signal transduction. These findings first revealed the anti-remodeling potential of ZDHXB-101 lead in chronic airway disease.
Collapse
Affiliation(s)
- Jun-Xia Jiang
- The Second Affiliated Hospital, Zhejiang University School of Medicine, # 88 Jiefang Rd, Hangzhou, 310009, Zhejiang Province, China.,Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China
| | - Hui-Juan Shen
- The Second Affiliated Hospital, Zhejiang University School of Medicine, # 88 Jiefang Rd, Hangzhou, 310009, Zhejiang Province, China.,Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China
| | - Yan Guan
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China.,Affiliated Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yong-Liang Jia
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China
| | - Jian Shen
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China
| | - Qi Liu
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China
| | - Qiang-Min Xie
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Zhejiang University School of Medicine, # 866 Yuhangtang Rd, Hangzhou, 310058, Zhejiang Province, China.
| | - Xiao-Feng Yan
- The Second Affiliated Hospital, Zhejiang University School of Medicine, # 88 Jiefang Rd, Hangzhou, 310009, Zhejiang Province, China.
| |
Collapse
|
14
|
Yan XF, Yang JW, Bai XK, Wang HR, Feng F, Hou LL, Sun Y, Wang WJ, Li X. [Awareness, treatment and control of hypertension in 640 000 adults in eastern China]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:68-73. [PMID: 32062945 DOI: 10.3760/cma.j.issn.0254-6450.2020.01.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the awareness, treatment, and control of hypertension in residents aged 35-75 years in eastern China, analyze the treatment mode for antihypertensive agents while identifying those factors affecting awareness, treatment and control. Methods: The data collected in eastern China from the China Patient-Centered Evaluative Assessment of Cardiac Events (PEACE) Million Persons Project were used to obtain the information about the awareness, treatment and control of hypertension in the residents and the antihypertensive medication treatment mode in this area. Multilevel mixed-effects model was used to explore the association of the demographic characteristics of hypertension patients with the rates of awareness, treatment and control of hypertension. Results: A total of 640 539 participants aged 35-75 years, mean age (56.9±9.6) years, were included in the analysis, women accounted for 59.7% and 318 741 (49.8%) of the participants suffered from hypertension. Among those hypertensive patients, 46.5% were aware of their condition, 38.1% were taking prescribed antihypertensive medications, and 11.1% had achieved the control of hypertension, the differences were significant among provinces, between urban area and rural area and among different demographical groups. Calcium-channel blockers was the most commonly used medication (45.1%), and 78 735 hypertension patients (86.2%) took only one type of medication. Older age, higher household income, higher level of education, and histories of myocardial infarction, stroke and diabetes were associated with higher awareness, treatment and control of hypertension (P<0.05). Conclusions: The rates of awareness, treatment and control of hypertension were low in residents in eastern China. The differences in hypertension management were significant among provinces and between urban area and rural area. Further efforts are needed to enhance the system of hypertension prevention, screening, diagnosis and treatment.
Collapse
Affiliation(s)
- X F Yan
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - J W Yang
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X K Bai
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - H R Wang
- Cardiovascular Institute of Luohe, Luohe Central Hospital, the First Affiliated Hospital, Luohe Medical College, Luohe 462000, China
| | - F Feng
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - L L Hou
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y Sun
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - W J Wang
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X Li
- National Clinical Research Center for Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, National Center for Cardiovascular Diseases, Fuwai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| |
Collapse
|
15
|
Ye TJ, Lu YL, Yan XF, Hu XD, Wang XL. High mobility group box-1 release from H 2O 2-injured hepatocytes due to sirt1 functional inhibition. World J Gastroenterol 2019; 25:5434-5450. [PMID: 31576091 PMCID: PMC6767985 DOI: 10.3748/wjg.v25.i36.5434] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [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: 04/25/2019] [Revised: 08/07/2019] [Accepted: 08/19/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND High mobility group box-1 (HMGB1), recognized as a representative of damage-associated molecular patterns, is released during cell injury/death, triggering the inflammatory response and ultimately resulting in tissue damage. Dozens of studies have shown that HMGB1 is involved in certain diseases, but the details on how injured hepatocytes release HMGB1 need to be elicited.
AIM To reveal HMGB1 release mechanism in hepatocytes undergoing oxidative stress.
METHODS C57BL6/J male mice were fed a high-fat diet for 12 wk plus a single binge of ethanol to induce severe steatohepatitis. Hepatocytes treated with H2O2 were used to establish an in vitro model. Serum alanine aminotransferase, liver H2O2 content and catalase activity, lactate dehydrogenase and 8-hydroxy-2-deoxyguanosine content, nicotinamide adenine dinucleotide (NAD+) levels, and Sirtuin 1 (Sirt1) activity were detected by spectrophotometry. HMGB1 release was measured by enzyme linked immunosorbent assay. HMGB1 translocation was observed by immunohistochemistry/immunofluorescence or Western blot. Relative mRNA levels were assayed by qPCR and protein expression was detected by Western blot. Acetylated HMGB1 and poly(ADP-ribose)polymerase 1 (Parp1) were analyzed by Immunoprecipitation.
RESULTS When hepatocytes were damaged, HMGB1 translocated from the nucleus to the cytoplasm because of its hyperacetylation and was passively released outside both in vivo and in vitro. After treatment with Sirt1-siRNA or Sirt1 inhibitor (EX527), the hyperacetylated HMGB1 in hepatocytes increased, and Sirt1 activity inhibited by H2O2 could be reversed by Parp1 inhibitor (DIQ). Parp1 and Sirt1 are two NAD+-dependent enzymes which play major roles in the decision of a cell to live or die in the context of stress . We showed that NAD+ depletion attributed to Parp1 activation after DNA damage was caused by oxidative stress in hepatocytes and resulted in Sirt1 activity inhibition. On the contrary, Sirt1 suppressed Parp1 by negatively regulating its gene expression and deacetylation.
CONCLUSION The functional inhibition between Parp1 and Sirt1 leads to HMGB1 hyperacetylation, which leads to its translocation from the nucleus to the cytoplasm and finally outside the cell.
Collapse
Affiliation(s)
- Ting-Jie Ye
- Department of Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Yan-Lin Lu
- Department of Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
- Department of Oncology and Institute of Traditional Chinese Medicine in Oncology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - Xiao-Feng Yan
- Department of Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xu-Dong Hu
- Department of Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Xiao-Ling Wang
- Department of Biology, School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| |
Collapse
|
16
|
Qin H, Wen HT, Gu KJ, Hu XD, Yang T, Yan XF, Ye TJ, Huo JL, Hu J. Total extract of Xin Jia Xuan Bai Cheng Qi decoction inhibits pulmonary fibrosis via the TGF-β/Smad signaling pathways in vivo and in vitro. Drug Des Devel Ther 2019; 13:2873-2886. [PMID: 31695321 PMCID: PMC6707443 DOI: 10.2147/dddt.s185418] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 04/29/2019] [Indexed: 12/21/2022]
Abstract
Purpose Pulmonary fibrosis (PF) is a common clinical disease, which results in serious respiratory impairment. Xin Jia Xuan Bai Cheng Qi Decoction (XJXBCQ) is a traditional prescription commonly used in treating lung diseases. We investigate the effect of XJXBCQ against PF and its mechanism via the regulation of TGF-β1/Smad in vitro and in vivo. Materials and methods XJXBCQ was first extracted and probed for chemical characterization. An PF model in vitro and in vivo was established in rats and in MRC-5 cells. In bleomycin (BLM)-induced rats model, lung function such as peak expiratory flow (PEF), minute ventilation (MV) and hydroxyproline (HYP) were measured; histopathological changes of lung tissue and TGF-β1 in peripheral blood of rats were detected. TGF-β receptor, Smad2 and its phosphorylation expression were tested by Western blot assay in rats model. Then the effects of XJXBCQ on TGF-β1/Smad signal pathway were assessed by Western blot analysis in vitro, and IL-17A and IL-25 levels were evaluated by ELISA in vivo. Results Our results showed that XJXBCQ significantly enhanced the lung functions, such as PEF, MV and HYP, by reducing the expression level of lung inflammatory cytokine and the content and fibrosis of lung collagen. Moreover, XJXBCQ effectively inhibited TGF-β1, Smad2 and its phosphorylation expression, and the activation of Smad7 in vitro and in vivo. Furthermore, XJXBCQ had an inhibitory effect on the α-smooth muscle actin (α-SMA) and fibronectin (Fn) in vitro and downregulated IL-17A and IL-25 by inhibiting the activation of TGF-β1/Smad signaling pathway in vitro and in vivo. Further, XJXBCQ effectively inhibitied ventilation volume and peak expiratory content remodeling and hydroxyproline content through inhibition of TGF-βRⅡ, Smad2 and its phosphorylation expression, and activation of Smad7 in vivo. Conclusion XJXBCQ extract had an anti-PF effect in vitro and in vivo, which could be attributed to the inhibition of the expression of p-Smad2 and increase in the expression of Smad7 by regulating the TGF-β1/Smad activity.
Collapse
Affiliation(s)
- Hui Qin
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.,Seventh People's Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 200137, People's Republic of China
| | - Hao-Tian Wen
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China.,Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Kai-Juan Gu
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Xu-Dong Hu
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Tao Yang
- Department of Cardiology, Institute of Liver Diseases, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Xiao-Feng Yan
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Ting-Jie Ye
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Jin-Lin Huo
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| | - Jing Hu
- Preclinical Medicine College, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, People's Republic of China
| |
Collapse
|
17
|
Yang S, Guo JQ, Yan XF. [Updated progress on the pathogenesis of liver injury induced by anti-tuberculosis drugs]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:378-381. [PMID: 31137115 DOI: 10.3760/cma.j.issn.1001-0939.2019.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
18
|
Yan XF, Zhao P, Ma DY, Jiang YL, Luo JJ, Liu L, Wang XL. Salvianolic acid B protects hepatocytes from H 2O 2 injury by stabilizing the lysosomal membrane. World J Gastroenterol 2017; 23:5333-5344. [PMID: 28839433 PMCID: PMC5550782 DOI: 10.3748/wjg.v23.i29.5333] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/27/2017] [Accepted: 05/09/2017] [Indexed: 02/06/2023] Open
Abstract
AIM To investigate the capability of salvianolic acid B (Sal B) to protect hepatocytes from hydrogen peroxide (H2O2)/carbon tetrachloride (CCl4)-induced lysosomal membrane permeabilization. METHODS Cell Counting Kit-8 assay was used to measure cell viability. Apoptosis and death were assayed through flow cytometry. BrdU incorporation was used to detect cell proliferation. Serum alanine aminotransferase activity and liver malondialdehyde (MDA) content were measured. Liver histopathological changes were evaluated using hematoxylin-eosin staining. Lysosomal membrane permeability was detected with LysoTracker Green-labeled probes and acridine orange staining. The levels of protein carbonyl content (PCC), cathepsins (Cat)B/D, and lysosome-associated membrane protein 1 (LAMP1) were evaluated through western blotting. Cytosol CatB activity analysis was performed with chemiluminescence detection. The mRNA level of LAMP1 was evaluated through quantitative real-time polymerase chain reaction. RESULTS Results indicated that H2O2 induced cell injury/death. Sal B attenuated H2O2-induced cell apoptosis and death, restored the inhibition of proliferation, decreased the amount of PCC, and stabilized the lysosome membrane by increasing the LAMP1 protein level and antagonizing CatB/D leakage into the cytosol. CCl4 also triggered hepatocyte death. Furthermore, Sal B effectively rescued hepatocytes by increasing LAMP1 expression and by reducing lysosomal enzyme translocation to the cytosol. CONCLUSION Sal B protected mouse embryonic hepatocytes from H2O2/CCl4-induced injury/death by stabilizing the lysosomal membrane.
Collapse
|
19
|
Li J, Li X, Hu S, Yu Y, Yan XF, Jiang LX. [ST-segment elevation myocardial infarction in the eastern urban China: from 2001 to 2011]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 44:303-8. [PMID: 27112607 DOI: 10.3760/cma.j.issn.0253-3758.2016.04.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess trends in clinical characteristics, treatments, and outcomes for hospitalized patients with ST-segment elevation myocardial infarction(STEMI) in eastern urban China from 2001 to 2011. METHODS The data were obtained from the China PEACE-retrospective acute myocardial infarction study. Patients admitted to hospital in the eastern urban China for STEMI were selected via two-stage random sampling. The first phase was to identify participating hospitals via a simple random-sampling procedure. The second stage was to select patients admitted to each participating hospitals for acute myocardial infarction in the year of 2001, 2006 and 2011 with a systematic sampling approach. Then clinical information was obtained via central medical record abstraction for each patient. In all analyses, weight was calculated proportional to the inverse sampling fraction for each period. Multilevel logistic regression models with generalized estimating equations were used for analysis of patient outcomes. RESULTS This analysis included 5 257 patients with STEMI from 32 hospitals. In 2001, 2006, and 2011, the median age of STEMI patients was 66(57, 72)、67(56, 74)and 63(53, 74)years(trend test P=0.008), the proportion of female was 30.3%, 29.5% and 29.2%(trend test P=0.530), respectively. The proportion of cardiovascular risk factors increased over time(trend test P<0.001); 45.6%, 55.6%, and 56.3% patients had hypertension(trend test P<0.001); 18.8%, 27.7% and 26.2% patients had diabetes(trend test P<0.001); 50.1%, 59.2% and 70.5% patients had dyslipidemia(trend test P<0.001); 30.5%, 35.1% and 44.1% patients are current smokers(trend test P<0.001) in 2001, 2006 and 2011, respectively. Between 2001 and 2011, there were significant increases in aspirin use(80.7% in 2001, 90.4% in 2006, and 91.5% in 2011, trend test P<0.001), clopidogrel use(2.9% in 2001, 64.2% in 2006, and 90.3% in 2011, trend test P<0.001) within 24 hours after admission, statins use rate was 45.8% in 2001, 83.4% in 2006, and 93.8% in 2011(trend test P<0.001), and rate of direct percutaneous coronary intervention(PCI) was 21.0% in 2001, 29.7% in 2006, and 40.3% in 2011(trend test P<0.001) in patients without documented contraindications. However, the rate of reperfusion therapy was non-significantly decreased: 58.5% in 2001, 58.0% in 2006, and 55.5% in 2011 (trend test P=0.230). The use of beta blockers also decreased: 62.4% in 2001, 64.3% in 2006 and 55.2% in 2011(trend test P=0.001). The mortality rate within 7 days following admission was 7.8%, 7.0%, 6.1%, and the proportion of death or treatment withdrawal because of terminal status was 8.3%, 8.6%, 7.4% in 2001, 2006 and 2011, respectively. Both parameters were similar among the 3 time points(trend test P>0.05). CONCLUSIONS During the past decade, there has been a rapid increase in application of new technology and drug for STEMI in the eastern urban China. However, important gaps persist between clinical practice and guideline recommendations, and the outcomes of patients have not been significantly improved. Clinical Trail Registry: ClinicalTrials.gov, NCT01624883.
Collapse
Affiliation(s)
- J Li
- National Clinical Research Center of Cardiovascular Diseases, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | | | | | | | | | | |
Collapse
|
20
|
Gu SJ, Lu M, Xuan HF, Chen XZ, Dong WF, Yan XF, Si Y, Gao GL, Hu DX, Miao JQ. Predictive value of serum caspase-cleaved cytokeratin-18 concentrations after acute intracerebral hemorrhage. Clin Chim Acta 2015; 452:124-8. [PMID: 26569346 DOI: 10.1016/j.cca.2015.11.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2015] [Revised: 11/06/2015] [Accepted: 11/09/2015] [Indexed: 01/18/2023]
Abstract
BACKGROUND Caspase-cleaved Cytokeratin-18 (CCCK-18) is released during apoptosis. Serum CCCK-18 concentrations are associated with prognosis of some critical illness. We investigated the potential relationships between serum CCCK-18 concentrations and disease severity and long-term clinical outcomes after intracerebral hemorrhage. METHODS Serum CCCK-18 concentrations were determined in a total of 102 patients and 102 controls. Multivariate models were used to predict high concentration of CCCK-18 and 6-month clinical outcomes. The predictive values were evaluated based on areas under receiver operating curve. RESULTS Compared with controls, serum CCCK-18 concentrations were increased in patients (245.8±108.3U/l vs. 23.6±18.1U/l, P<0.001). National Institute of Health Stroke Scale scores [odds ratio (OR), 1.164; 95% confidence interval (CI), 1.027-1.320; P=0.003] and hematoma volumes (OR, 1.079; 95% CI, 1.018-1.205; P=0.008) were independent predictors of high concentration of CCCK-18. CCCK-18 was identified as an independent predictor of 6-month mortality (OR, 1.019; 95% CI, 1.010-1.038; P=0.013) and 6-month unfavorable outcome (OR, 1.017; 95% CI, 1.008-1.029; P=0.032) and possessed high predictive values. CONCLUSION Increased serum CCCK-18 concentrations are associated with disease severity and clinical outcomes, suggesting that CCCK represent a novel prognostic predictive biomarker after intracerebral hemorrhage.
Collapse
Affiliation(s)
- Shui-Jun Gu
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Ming Lu
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China.
| | - Hong-Fei Xuan
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Xin-Zhi Chen
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Wei-Feng Dong
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Xiao-Feng Yan
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Yun Si
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Guo-Liang Gao
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Dian-Xiang Hu
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| | - Jian-Qing Miao
- Department of Neurosurgery, The first people's Hospital of Xiaoshan District of Hangzhou City, 199 Shixin South Road, Xiaoshan District, Hangzhou 311200, China
| |
Collapse
|
21
|
Peng XX, Zhang SH, Wang XL, Ye TJ, Li H, Yan XF, Wei L, Wu ZP, Hu J, Zou CP, Wang YH, Hu XD. Panax Notoginseng flower saponins (PNFS) inhibit LPS-stimulated NO overproduction and iNOS gene overexpression via the suppression of TLR4-mediated MAPK/NF-kappa B signaling pathways in RAW264.7 macrophages. Chin Med 2015; 10:15. [PMID: 26155304 PMCID: PMC4493833 DOI: 10.1186/s13020-015-0045-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Accepted: 06/25/2015] [Indexed: 01/29/2023] Open
Abstract
Background Panax Notoginseng flower saponins (PNFS) are the main active component of Panax notoginseng (Burk) F. H. Chen flower bud (PNF) and possess significant anti-inflammatory efficacy. This study aims to explore the mechanisms underlying PNFS’ antiflammatory action in RAW264.7 macrophages. Methods A cell counting kit-8 assay was used to determine the viability of RAW264.7 macrophages. Anti-inflammation effects of PNFS in lipopolysaccharide (LPS)-stimulated RAW264.7 macrophages were measured based on the detection of nitric oxide (NO) overproduction (Griess method, DAF-FM DA fluorescence assay and NO2− scavenging assay), and interleukin (IL)-6 and tumor necrosis factor (TNF)-alpha gene overexpression (real-time PCR and ELISA). Inducible nitric oxide synthase (iNOS) gene overexpression was determined by real-time PCR and western blotting. iNOS enzyme activity was also assayed. The mechanisms underlying the suppression of iNOS gene overexpression by PNFS were explored using real-time PCR and western blotting to assess mRNA and protein levels of components of the Toll-like receptor 4 mitogen-activated protein kinase (MAPK), phosphatidylinositol 3-kinase (PI3K)/Akt, and nuclear factor-kappa B (NF-kappa B) signaling pathways. Results PNFS (50, 100, 200 μg/mL) significantly reduced LPS-induced overproduction of NO (P < 0.001, P < 0.001, P < 0.001) and IL-6 (P = 0.103, P < 0.001, P < 0.001), but did not affect TNF-alpha overproduction. PNFS (50, 100, 200 μg/mL) also markedly decreased LPS-activated iNOS (P < 0.001, P < 0.001, P < 0.001) and TLR4 gene overexpression (P = 0.858, P = 0.046, P = 0.005). Furthermore, treatment with PNFS (200 μg/mL) suppressed the phosphorylation of MAPKs including P38 (P = 0.001), c-Jun N-terminal kinase (JNK) (P = 0.036) and extracellular-signal regulated kinase (ERK) 1/2 (P = 0.021). PNFS (200 μg/mL) inhibited the activation of the NF-kappa B signaling pathway by preventing the phosphorylation of inhibitor of NF-kappa B alpha (I-kappa B alpha) (P = 0.004) and P65 (P = 0.023), but PNFS (200 μg/mL) could not activate the LPS-induced PI3K-Akt signaling pathway. Conclusions PNFS significantly down-regulated iNOS gene overexpression and thereby decreased NO overproduction via the inhibition of TLR4-mediated MAPK/NF-kappa B signaling pathways, but not the PI3K/Akt signaling pathway.
Collapse
Affiliation(s)
- Xiao-Xu Peng
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Shu-Hui Zhang
- Yueyang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437 People's Republic of China
| | - Xiao-Ling Wang
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Ting-Jie Ye
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Hua Li
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Xiao-Feng Yan
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Li Wei
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Zhong-Ping Wu
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Jing Hu
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - Chun-Pu Zou
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| | - You-Hua Wang
- Hypertension Laboratory, Cardiovascular Department, Long Hua Hospital affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200032 People's Republic of China
| | - Xu-Dong Hu
- Department of Biology, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203 People's Republic of China
| |
Collapse
|
22
|
Zhang L, Zhao HK, Wang YM, Yuan CP, Zhang YY, Li HY, Yan XF, Li QY, Dong YS. Genome-wide identification and expression analysis of the CPP-like gene family in soybean. Genet Mol Res 2015; 14:1260-8. [PMID: 25730064 DOI: 10.4238/2015.february.13.4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 12/16/2023]
Abstract
Cysteine-rich polycomb-like protein (CPP-like) genes are a group of transcription factors with highly conserved cysteine-rich domains and are widely distributed in animals and plants, but do not present in yeast. Previous studies have shown that members of this family play important roles in the development of reproductive tissue and in the control of cell division in plants. In this study, whole genome identification of soybean CPP transcription factors was performed using bioinformatic methods. The results showed that there were 20 CPP transcription factors in the soybean genome, which encoded for 28 distinct CPP proteins. These transcription factors were distributed on 16 of 20 chromosomes. Phylogenetic relationship analysis showed that expression of CPP gene family members occurred before the differentiation of monocotyledons and dicotyledons. RNA-Seq analysis showed that 5 genes were highly expressed in all tissues, including Glyma10g39080, Glyma01g44670, Glyma101g66920, Glyma02g01540, and Glyma20g28740. One gene (Glyma14g14750) was specifically expressed in young leaves, while 2 genes (Glyma02g01540 and Glyma10g01580) were highly expressed in root nodules. Quantitative reverse transcriptase-polymerase chain reaction analysis revealed that the expression levels of most genes increased in the roots under high temperature stress. Our findings indicate that these genes are not only involved in growth and development, but also in the responses to high temperature stress in soybean roots.
Collapse
Affiliation(s)
- L Zhang
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - H K Zhao
- Crop Germplasm Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Y M Wang
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - C P Yuan
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Y Y Zhang
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - H Y Li
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - X F Yan
- College of Agriculture, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Q Y Li
- Institute of Plant Protection, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| | - Y S Dong
- Agro-Biotechnology Research Institute, Jilin Academy of Agricultural Sciences, Changchun, Jilin, China
| |
Collapse
|
23
|
Gu SJ, Xuan HF, Lu M, Chen XZ, Dong WF, Yan XF, Si Y, Gao GL, Hu DX, Miao JQ. Admission plasma visfatin level strongly correlates with hematoma growth and early neurologic deterioration in patients with acute spontaneous basal ganglia hemorrhage. Clin Chim Acta 2013; 425:85-9. [DOI: 10.1016/j.cca.2013.07.025] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 07/23/2013] [Accepted: 07/23/2013] [Indexed: 10/26/2022]
|
24
|
Yan XF, Zhang ZM, Yao HY, Guan Y, Zhu JP, Zhang LH, Jia YL, Wang RW. Cardiovascular protection and antioxidant activity of the extracts from the mycelia of Cordyceps sinensis act partially via adenosine receptors. Phytother Res 2012. [PMID: 23192916 DOI: 10.1002/ptr.4899] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Mycelia of cultured Cordyceps sinensis (CS) is one of the most common substitutes for natural CS and was approved for arrhythmia in China. However, the role of CS in ameliorating injury during ischemia-reperfusion (I/R) is still unclear. We examined effects of extracts from CS on I/R and investigated the possible mechanisms. Post-ischemic coronary perfusion pressure, ventricular function, and coronary flow were measured using the Langendorff mouse heart model. Oxidative stress of cardiac homogenates was performed using an ELISA. Our results indicate that CS affords cardioprotection possibly through enhanced adenosine receptor activation. Cardioprotection was demonstrated by reduced post-ischemic diastolic dysfunction and improved recovery of pressure development and coronary flow. Treatment with CS largely abrogates oxidative stress and damage in glucose- or pyruvate-perfused hearts. Importantly, observed reductions in oxidative stress [glutathione disulfide (GSSG)]/[GSSG + glutathione] and [malondialdehyde (MDA)]/[superoxide dismutase + MDA] ratios as well as the resultant damage upon CS treatment correlate with functional markers of post-ischemic myocardial outcome. These effects of CS were partially blocked by 8-ρ-sulfophenyltheophylline, an adenosine receptor antagonist. Our results demonstrate a suppressive role of CS in ischemic contracture. Meanwhile, the results also suggest pre-ischemic adenosine receptor activation may be involved in reducing contracture in hearts pretreated with CS.
Collapse
Affiliation(s)
- Xiao-Feng Yan
- The Second Affiliated Hospital of Medical College, Zhejiang University, Hangzhou, 310009, China
| | | | | | | | | | | | | | | |
Collapse
|
25
|
Wang XL, Jia DW, Liu HY, Yan XF, Ye TJ, Hu XD, Li BQ, Chen YL, Liu P. Effect of Yiguanjian decoction on cell differentiation and proliferation in CCl 4-treated mice. World J Gastroenterol 2012; 18:3235-49. [PMID: 22783047 PMCID: PMC3391760 DOI: 10.3748/wjg.v18.i25.3235] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2011] [Revised: 03/29/2012] [Accepted: 04/02/2012] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the cellular mechanisms of action of Yiguanjian (YGJ) decoction in treatment of chronic hepatic injury.
METHODS: One group of mice was irradiated, and received enhanced green fluorescent protein (EGFP)-positive bone marrow transplants followed by 13 wk of CCl4 injection and 6 wk of oral YGJ administration. A second group of Institute for Cancer Research mice was treated with 13 wk of CCl4 injection and 6 wk of oral YGJ administration. Liver function, histological changes in the liver, and Hyp content were analyzed. The expression of α-smooth muscle actin (α-SMA), F4/80, albumin (Alb), EGFP, mitogen-activated protein kinase-2 (PKM2), Ki-67, α fetoprotein (AFP), monocyte chemotaxis protein-1 and CC chemokine receptor 2 were assayed.
RESULTS: As hepatic damage progressed, EGFP-positive marrow cells migrated into the liver and were mainly distributed along the fibrous septa. They showed a conspicuous coexpression of EGFP with α-SMA and F4/80 but no coexpression with Alb. Moreover, the expression of PKM2, AFP and Ki-67 was enhanced dynamically and steadily over the course of liver injury. YGJ abrogated the increases in the number of bone marrow-derived fibrogenic cells in the liver, inhibited expression of both progenitor and mature hepatocyte markers, and reduced fibrogenesis.
CONCLUSION: YGJ decoction improves liver fibrosis by inhibiting the migration of bone marrow cells into the liver as well as inhibiting their differentiation and suppressing the proliferation of both progenitors and hepatocytes in the injured liver.
Collapse
|
26
|
Sun L, Tan LJ, Lei SF, Chen XD, Li X, Pan R, Yin F, Liu QW, Yan XF, Papasian CJ, Deng HW. Bivariate genome-wide association analyses of femoral neck bone geometry and appendicular lean mass. PLoS One 2011; 6:e27325. [PMID: 22087292 PMCID: PMC3210160 DOI: 10.1371/journal.pone.0027325] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2011] [Accepted: 10/13/2011] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Femoral neck geometric parameters (FNGPs), such as periosteal diameter (W), cross-sectional area (CSA), cortical thickness (CT), buckling ratio (BR), and section modulus (Z), are highly genetically correlated with body lean mass. However, the specific SNPs/genes shared by these phenotypes are largely unknown. METHODS To identify the specific SNPs/genes shared between FNGPs and appendicular lean mass (ALM), we performed an initial bivariate genome-wide association study (GWAS) by scanning ∼690,000 SNPs in 1,627 unrelated Han Chinese adults (802 males and 825 females) and a follow-up replicate study in 2,286 unrelated US Caucasians. RESULTS We identified 13 interesting SNPs that may be important for both FNGPs and ALM. Two SNPs, rs681900 located in the HK2 (hexokinase 2) gene and rs11859916 in the UMOD (uromodulin) gene, were bivariately associated with FNGPs and ALM (p = 7.58×10(-6) for ALM-BR and p = 2.93×10(-6) for ALM-W, respectively). The associations were then replicated in Caucasians, with corresponding p values of 0.024 for rs681900 and 0.047 for rs11859916. Meta-analyses yielded combined p values of 3.05×10(-6) and 2.31×10(-6) for rs681900 and rs11859916, respectively. Our findings are consistent with previous biological studies that implicated HK2 and UMOD in both FNGPs and ALM. Our study also identified a group of 11 contiguous SNPs, which spanned a region of ∼130 kb, were bivariately associated with FNGPs and ALM, with p values ranging from 3.06×10(-7) to 4.60×10(-6) for ALM-BR. The region contained two neighboring miRNA coding genes, MIR873 (MicroRNA873) and MIR876 (MicroRNA876). CONCLUSION Our study implicated HK2, UMOD, MIR873 and MIR876, as pleiotropic genes underlying variation of both FNGPs and ALM, thus suggesting their important functional roles in co-regulating both FNGPs and ALM.
Collapse
Affiliation(s)
- Lu Sun
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Li-Jun Tan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
- Center for Bioinformatics and Genomics, Department of Biostatistics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
| | - Shu-Feng Lei
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiang-Ding Chen
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xi Li
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Rong Pan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Fang Yin
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Quan-Wei Liu
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Xiao-Feng Yan
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
| | - Christopher J. Papasian
- Departments of Orthopedic Surgery and Basic Medical Sciences, School of Medicine, University of Missouri - Kansas City, Kansas City, Missouri, United States of America
| | - Hong-Wen Deng
- Laboratory of Molecular and Statistical Genetics, College of Life Sciences, Hunan Normal University, Changsha, China
- Center for Bioinformatics and Genomics, Department of Biostatistics, School of Public Health and Tropical Medicine, Tulane University, New Orleans, Louisiana, United States of America
- Departments of Orthopedic Surgery and Basic Medical Sciences, School of Medicine, University of Missouri - Kansas City, Kansas City, Missouri, United States of America
- Center of Systematic Biomedical Research, Shanghai University of Science and Technology, Shanghai, China
- College of Life Sciences and Technology, Beijing Jiao Tong University, Beijing, China
| |
Collapse
|
27
|
Yao HY, Zhang LH, Shen J, Shen HJ, Jia YL, Yan XF, Xie QM. Cyptoporus polysaccharide prevents lipopolysaccharide-induced acute lung injury associated with down-regulating Toll-like receptor 2 expression. J Ethnopharmacol 2011; 137:1267-1274. [PMID: 21875662 DOI: 10.1016/j.jep.2011.07.058] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2011] [Revised: 06/17/2011] [Accepted: 07/28/2011] [Indexed: 05/31/2023]
Abstract
AIM OF THE STUDY To evaluate the effects and the possible mechanism of Cryptoporus polysaccharides (CP) extracted from fruiting body of Cryptoporus volvatus in lipopolysaccharide (LPS)-induced acute lung injury (ALI) in rats and mice. MATERIALS AND METHODS Acute lung injury was induced by intratracheally instillation of LPS into lung in either rats or mice, assessing leukocyte numbers and myeloperoxidase activity in bronchoalveolar lavage fluid, as well as evaluating cytokines mRNA and protein expressions, and Toll-like receptor 2 (TLR(2)) and nuclear factor (NF)-κB mRNA levels in the lung tissues of mice. Vascular permeability and edema of lung in mice, and arterial blood gas in rats were also performed. RESULTS In ALI, CP-treated mice and rats exhibited significantly reduced leukocyte invasion, myeloperoxidase activity, vascular permeability, edema of lung, as well as tumor necrosis factor-α and Interleukin-1β mRNA and protein expressions in the lung tissues compared with vehicle-treated mice. TLR(2) and NF-κB mRNA levels of the lung tissues were decreased in CP-treated mice in response to LPS. And decline in arterial blood gas was recovered in CP-treated rats. CONCLUSIONS Our results supported a protective role of CP in ALI and suggested that the reduction of the activation of TLR(2) and NF-κB signal pathway in lung injury may be relavant to the pretreatment of CP.
Collapse
Affiliation(s)
- Hong-Yi Yao
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou 310058, China
| | | | | | | | | | | | | |
Collapse
|
28
|
Yao HY, Chen L, Xu C, Wang J, Chen J, Xie QM, Wu X, Yan XF. Inhibition of Rac activity alleviates lipopolysaccharide-induced acute pulmonary injury in mice. Biochim Biophys Acta 2011; 1810:666-74. [PMID: 21511011 DOI: 10.1016/j.bbagen.2011.03.020] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 03/18/2011] [Accepted: 03/31/2011] [Indexed: 10/18/2022]
Abstract
BACKGROUND Rac small GTPases play important roles in cytoskeleton and many cell functions including cell cycle, cell growth, cell adhesion and gene transcription. Here, we investigated the roles of Rac including Rac1 and Rac2 in lipopolysaccharide (LPS)-induced pulmonary injury. METHODS After LPS was intratracheally instilled to lungs in mice, Rac, CDC42 and RhoA activation assay by pull-down and West blot, inflammatory cell infiltration assay by counting cell numbers and lung histological examination, pro-inflammatory mediator mRNA expression assay by quantitative RT-PCR, measurement of myeloperoxidase (MPO) activity, Evans Blue and albumin accumulation by spectrophotometry were performed to evaluate the roles of Rac in pulmonary injury by using its specific inhibitor, NSC23766. RESULTS LPS challenge led to increases of both Rac1 and Rac2, but not CDC42 or RhoA activities in lungs, and intraperitoneal administration with NSC23766 inhibited both Rac1 and Rac2, but not CDC42 or RhoA activities. Treatment with NSC23766 at 1 or 3mg/kg not only reduced the inflammatory cells infiltration and MPO activities, but also inhibited pro-inflammatory mediators, tumor necrosis factor-α and interleukin-1β, mRNA expression. Moreover, in vitro neutrophil migration assay and in vivo microvascular permeability assay indicated that NSC23766 not only inhibited neutrophil transwell migration toward a chemoattractant, fMLP, but also reduced Evans Blue and albumin accumulation in LPS-challenged lungs. LPS activated both Rac1 and Rac2, but not CDC42 or RhoA activities in lungs, and specific inhibition of Rac activities by NSC23766 effectively alleviated LPS-induced injury. GENERAL SIGNIFICANCE Rac could be a potential target for therapeutic intervention of pulmonary inflammation.
Collapse
Affiliation(s)
- Hong-Yi Yao
- The Second Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310009, PR China
| | | | | | | | | | | | | | | |
Collapse
|
29
|
Guan Y, Li FF, Hong L, Yan XF, Tan GL, He JS, Dong XW, Bao MJ, Xie QM. Protective effects of liquiritin apioside on cigarette smoke-induced lung epithelial cell injury. Fundam Clin Pharmacol 2011; 26:473-83. [DOI: 10.1111/j.1472-8206.2011.00956.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
30
|
Cao R, Dong XW, Jiang JX, Yan XF, He JS, Deng YM, Li FF, Bao MJ, Xie YC, Chen XP, Xie QM. M(3) muscarinic receptor antagonist bencycloquidium bromide attenuates allergic airway inflammation, hyperresponsiveness and remodeling in mice. Eur J Pharmacol 2011; 655:83-90. [PMID: 21277298 DOI: 10.1016/j.ejphar.2011.01.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2010] [Revised: 12/14/2010] [Accepted: 01/12/2011] [Indexed: 11/15/2022]
Abstract
M(3) muscarinic receptors are localized on inflammatory cells, airway smooth muscle, and submucosal glands, known to mediate bronchoconstriction, mucus secretion, and airway remodeling. It is hypothesized bencycloquidium bromide (BCQB), a novel M(3) receptor antagonist, might have potential effects on airway hyperresponsiveness, inflammation and airway remodeling in a murine model of asthma. Mice sensitized and challenged with ovalbumin developed airway inflammation. Bronchoalveolar lavage fluid was examined to determine the total and differential cell counts, and cytokine levels. Lung tissues were evaluated for cell infiltration, mucus hypersecretion, airway remodeling, and the expression of inflammatory biomarkers. Airway hyperresponsiveness was monitored by direct airway resistance analysis. Inhalation administration of BCQB significantly not only reduced ovalbumin-induced airway hyperresponsiveness comparing to methacholine, and prevented the ovalbumin-induced increase in total cell counts and eosinophil counts. Reverse transcriptase polymerase chain reaction analysis of whole lung lysates revealed that BCQB markedly suppressed ovalbumin-induced mRNA expression of eotaxin, IL-5, IL-4 and MMP-9, and increased mRNA expression of IFN-γ and TIMP-1 in a dose-dependent manner. Substantial IFN-γ/IL-4 (Th1/Th2) levels were recovered in bronchoalveolar lavage fluid after BCQB treatment. In addition, histological studies showed that BCQB dramatically inhibited ovalbumin-induced lung tissue eosinophil infiltration, airway mucus production and collagen deposition in lung tissues. Results reported in current paper suggest that M(3) receptors antagonist may provide a novel therapeutic approach to treat airway inflammation, hyperresponsiveness and remodeling.
Collapse
Affiliation(s)
- Rui Cao
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration of China, Medical College of Zhejiang University, Hangzhou, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Yan XF, Liu P, Sun MY, Wang XL. Mechanisms underlying the therapeutic effect of Huangqi Decoction against dimethylnitrosamine-induced liver fibrosis in rats. Shijie Huaren Xiaohua Zazhi 2010; 18:2410-2415. [DOI: 10.11569/wcjd.v18.i23.2410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the mechanisms underlying the therapeutic effect of Huangqi Decoction against dimethylnitrosamine (DMN)-induced liver fibrosis in rats.
METHODS: Liver fibrosis was induced in rats by intraperitoneal injection of DMN for 4 wk. Rats were randomly divided into two groups: normal group and model group. Fibrotic rats in the model group were further randomly divided into two subgroups: model control subgroup and Huangqi Decoction subgroup. The Huangqi Decoction subgroup was intragastrically administered Huangqi Decoction for 2 wk, while the model control subgroup was administered equal volume of saline. At the end of 2, 4 and 6 wk, hepatic tissue samples were collected to detect the protein expression of Fas, caspase-8, caspase-3, matrix metallopeptidase-9 (MMP-9), tissue inhibitor of metalloproteinase 1 (TIMP-1) and TIMP-2 by Western blot, mRNA expression of α-SMA by real time-PCR, and MMP-2 and MMP-9 activity by gelatin enzymography.
RESULTS: Compared with the normal group, the expression levels of Fas, caspase-8, caspase-3, TIMP-1 and TIMP-2 proteins and α-SMA mRNA as well as MMP-2 and MMP-9 activity in liver tissue increased gradually in the model group and peaked at 4 wk. Compared with the model control subgroup, the expression levels of Fas, caspase-8, caspase-3, TIMP-1 and TIMP-2 proteins and α-SMA mRNA as well as MMP-2 activity at 6 wk were significantly reduced (1.05 ± 0.02 vs 1.17 ± 0.04, 1.41 ± 0.04 vs 1.98 ± 0.06, 0.86 ± 0.01 vs 1.19±0.04, 1.03 ± 0.03 vs 1.58 ± 0.06, 1.16 ± 0.04 vs 1.53 ± 0.01, 3.12 ± 0.47 vs 8.48 ± 0.45 and 2.15 ± 0.03 vs 2.33 ± 0.05, respectively; all P < 0.05 or 0.01), and MMP-9 protein expression and activity were significantly increased (1.21 ± 0.00 vs 1.12 ± 0.01 and 1.25 ± 0.07 vs 1.10 ± 0.04, respectively; both P < 0.05 or 0.01) in liver tissue in the Huangqi Decoction subgroup.
CONCLUSION: Huangqi Decoction exerts significant anti-fibrotic effects perhaps by inhibiting hepatic cell apoptosis and hepatic stellate cell (HSC) activation, modulating the MMPs/TIMPs system, and promoting extracellular matrix (ECM) degradation.
Collapse
|
32
|
Xie YC, Dong XW, Wu XM, Yan XF, Xie QM. Inhibitory effects of flavonoids extracted from licorice on lipopolysaccharide-induced acute pulmonary inflammation in mice. Int Immunopharmacol 2008; 9:194-200. [PMID: 19071231 DOI: 10.1016/j.intimp.2008.11.004] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2008] [Revised: 10/22/2008] [Accepted: 11/03/2008] [Indexed: 12/18/2022]
Abstract
Airway inflammation plays important roles in the pathogenesis of acute respiratory distress syndrome (ARDS), asthma and chronic obstructive pulmonary disease (COPD), and anti-inflammatory treatment effectively improves the symptoms of these diseases. To develop the potentially therapeutic compounds for the treatment of pulmonary inflammation, we investigated the effects of licorice flavonoids (LF) extracted from the roots of Glycyrrhiza uralensis (licorice) on lipopolysaccharide (LPS)-induced acute pulmonary inflammation in mice. Acute pulmonary inflammation was induced by intracheal instillation with LPS, treatment with LF at dosages of 3, 10 and 30 mg/kg significantly reduced the LPS-induced inflammatory cells, including neutrophils, macrophages and lymphocytes accumulation in bronchoalveolar lavage fluids (BALF), among these inflammatory cells, LF predominately inhibited neutrophil infiltration, and the maximal effect (30 mg/kg) was as comparable as dexamethasone treatment at 1 mg/kg. Consistent with its effects on neutrophil infiltration, LF treatment significantly increased LPS-induced BALF superoxide dismutase activity, and significantly decreased lung myeloperoxidase activity as well. Furthermore, treatment with LF at 30 mg/kg significantly reduced LPS-induced lung TNFalpha and IL-1beta mRNA expression at 6 h and 24 h after LPS instillation, respectively. Finally, LF at different dosages not only significantly decreased the elevation of lung water content, but also markedly attenuated LPS-induced histological alteration. Therefore, we suggest that LF effectively attenuates LPS-induced pulmonary inflammation through inhibition of inflammatory cells infiltration and inflammatory mediator release which subsequently reduces neutrophil recruitment into lung and neutrophil-mediated oxidative injury, and this study provides with the potential rationale for development of anti-inflammatory compounds from flavonoid extracts of licorice.
Collapse
Affiliation(s)
- Yi-Cheng Xie
- Zhejing Respiratory Drugs Research Laboratory of State Food and Drugs Administration of China, Zhejiang University, Hangzhou 310058, China
| | | | | | | | | |
Collapse
|
33
|
Abstract
AIM: To evaluate the patterns of use of clarithromycin for gastrointestinal disease treatment and promote its rational use.
METHODS: Using a structured pro forma, we conducted a two-month survey of the electronic prescriptions containing immediate-release (IR) or sustained-release (SR) product of clarithromycin for outpatients with gastrointestinal diseases in a 2200-bed general hospital. Suitability of the prescription was audited retrospectively.
RESULTS: One hundred and sixty-four prescriptions of SR product and 110 prescriptions of IR product were prescribed for gastrointestinal disease treatment. Among prescriptions for anti-Helicobacter pylori (H pylori) therapy, triple therapy take the dominant position (91.8%), followed by quadruple therapy (4.3%) and dual therapy (3.9%). Amoxicillin was the most frequently co-prescribed antibiotic. Furazolidone and levofloxacin are used more widely than metronidazole or tinidazole. Clarithromycin SR was administered at inappropriate time points in all prescriptions. Fifty percent of all prescriptions of clarithromycin SR, and 6.4% of prescriptions of clarithromycin IR, were prescribed at inappropriate dosing intervals. Surprisingly, disconcordance between diagnoses and indications was observed in all prescriptions of clarithromycin SR which has not been approved for treating H pylori infection although off-label use for this purpose was reported in literature. On the contrary, only one prescription (0.9%) of clarithromycin IR was prescribed for unapproved indication (i.e. gastro-oesophageal reflux disease). 1.4% of prescriptions for chronic gastritis or peptic ulcer treatment were irrational in that clarithromycin was not co-prescribed with gastric acid inhibitors. Clinical significant CYP3A based drug interactions with clarithromycin were identified.
CONCLUSION: There is a great scope to improve the quality of clarithromycin prescribing in patients with gastrointestinal disease, especially with regard to administration schedule, concordance between indications and diagnoses and management of drug interactions.
Collapse
|
34
|
Abstract
Many of the drugs currently used in medical practice are racemates. The enantiomers of a racemic drug differ in pharmacodynamics and/or pharmacokinetics, thus in some cases it is preferable to develop pure enantiomers by racemic switch. In a recent study by Pai et al, dexrabeprazole [R(+)-rabeprazole] (10 mg) was found to be more effective than rabeprazole (20 mg) in the treatment of gastroesophageal reflux disease. We read with great interest in this study and discussed whether such racemic switch would be applicable to other proton-pump inhibitors (PPIs). A literature review indicates that stereoselective pharmacokinetics, rather than stereoselective pharmacological activity, is the main cause of differences in clinical efficacy between pure enantiomer and racemic PPI. Racemic switches of PPI provide the therapeutic advantages such as reducing metabolic load on the body, simplifying pharmacokinetics, providing benefit to the non-responders to standard dose of racemate, more homogenous response to treatment and better efficacy with equal safety. Further studies in quantitative structure-activity relationships (QSARs) are needed to address the fact that the preferred enantiomer of PPI is not always in the same absolute configuration, i.e., S-form is for omeprazole, pantoprazole and tenatoprazole whereas R-form is for lansoprazole and rabeprazole.
Collapse
|
35
|
Zhou Q, Yan XF, Zhang ZM, Pan WS, Zeng S. Rational prescription of drugs within similar therapeutic or structural class for gastrointestinal disease treatment: Drug metabolism and its related interactions. World J Gastroenterol 2007; 13:5618-28. [PMID: 17948937 PMCID: PMC4172742 DOI: 10.3748/wjg.v13.i42.5618] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To review and summarize drug metabolism and its related interactions in prescribing drugs within the similar therapeutic or structural class for gastrointestinal disease treatment so as to promote rational use of medicines in clinical practice.
METHODS: Relevant literature was identified by performing MEDLINE/Pubmed searches covering the period from 1988 to 2006.
RESULTS: Seven classes of drugs were chosen, including gastric proton pump inhibitors, histamine H2-receptor antagonists, benzamide-type gastroprokinetic agents, selective 5-HT3 receptor antagonists, fluoroquinolones, macrolide antibiotics and azole antifungals. They showed significant differences in metabolic profile (i.e., the fraction of drug metabolized by cytochrome P450 (CYP), CYP reaction phenotype, impact of CYP genotype on interindividual pharmacokinetics variability and CYP-mediated drug-drug interaction potential). Many events of severe adverse drug reactions and treatment failures were closely related to the ignorance of the above issues.
CONCLUSION: Clinicians should acquaint themselves with what kind of drug has less interpatient variability in clearance and whether to perform CYP genotyping prior to initiation of therapy. The relevant CYP knowledge helps clinicians to enhance the management of patients with gastrointestinal disease who may require treatment with polytherapeutic regimens.
Collapse
|
36
|
Wang J, Yang S, Chen JJ, Zhou SM, He SM, Liang YH, Meng W, Yan XF, Liu JJ, Ye DQ, Zhang XJ. Systemic lupus erythematosus: a genetic epidemiology study of 695 patients from China. Arch Dermatol Res 2007; 298:485-91. [PMID: 17136562 DOI: 10.1007/s00403-006-0719-4] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2006] [Revised: 09/15/2006] [Accepted: 10/28/2006] [Indexed: 10/23/2022]
Abstract
Our purpose was to explore potential genetic models for systemic lupus erythematosus (SLE) and analyze genetic epidemiologic characteristics of SLE in a Chinese population. Data for 695 patients with SLE were obtained by using a uniform questionnaire. Patients, clinical characteristics and their family history were analyzed using software. A complex segregation analysis was conducted to propose potential genetic models for SLE. The mean +/- SD age of onset were 30.2 +/- 10.5 years and mean time to progression to SLE was 32.5 +/- 44.4 months. The most frequent initial manifestations were malar rash (61.3%). During the evolution of the disease, the main clinical features were arthritis in 73.6% of our patients, followed by malar rash (68.1%), and renal involvement (56.7%). As the first symptom, the late-onset group (onset of disease beyond the age of 50 years) less often showed malar rash (45% vs. 63.4% in the early-onset group; p = 0.001). There were no significant differences in the other cumulative clinical symptoms between late-onset and early-onset group, except for a lower prevalence of malar rash, photosensitivity and alopecia and a higher prevalence of mucosal ulcers in the late-onset group. A positive family history of SLE was obtained in 50 patients (7.2%). There were no statistical differences in clinical characteristics between familial SLE and sporadic SLE patients. The heritability of SLE was 43.6%, the genetic model of SLE could be polygenetic model and major gene mode is the best fitted one. SLE could be a multifactorial disease with polygenetic model.
Collapse
Affiliation(s)
- J Wang
- Institute of Dermatology and Department of Dermatology at First Hospital, Anhui Medical University, 69 Meishan Road, Hefei, Anhui 230022, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
37
|
Zhou JF, Yan XF, Ruan ZR, Peng FY, Cai D, Yuan H, Sun L, Ding DY, Xu SS. Heroin abuse and nitric oxide, oxidation, peroxidation, lipoperoxidation. Biomed Environ Sci 2000; 13:131-139. [PMID: 11055015] [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: 05/23/2023]
Abstract
To further reveal the risks of heroin abuse to human body, and to determine the injuries of oxidation, peroxidation and lipoperoxidation induced by nitric oxide and other free radicals to heroin abusers, we determined and compared plasma values of lipoperoxides (LPO), nitric oxide (NO), vitamin C (VC), vitamin E (VE), beta-carotene (beta-CAR) and erythrocyte values of LPO, superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) in 114 heroin abusers and 100 healthy volunteers. Using linear regression and correlation as well as stepwise regression and correlation, we also analyzed the effect of the abusing duration, and daily abusing quantity on the above-mentioned biochemical parameters in the heroin abusers. The results showed that, compared with the healthy volunteer groups, the average plasma values of LPO, and NO, and the average erythrocyte value of LPO in the heroin abuser group were significantly increased (P < 0.0001), and the average plasma values of VC, VE, and beta-CAR and the average erythrocyte values of SOD, CAT, and GSH-Px were significantly decreased (P < 0.0001). Analysis of linear regression and correlation showed that with prolonged heroin abusing and with increased daily quantity in the heroin abusers, the plasma values of LPO, and NO, and the erythrocyte value of LPO were gradually increased (P < 0.001), whereas the plasma values of VC, VE, and beta-CAR and the erythrocyte values of SOD, CAT, and GSH-Px were gradually decreased (P < 0.001). Analysis of stepwise regression and correlation indicated that the plasma values of NO, VC and VE were closely correlated with the abusing duration and daily abusing quantity. These results indicate that the balance between oxidation and antioxidation in the heroin abusers was seriously disturbed, and the injuries induced by nitric oxide and other free radicals, through oxidation, peroxidation and lipoperoxidation to the bodies of heroin abusers exacerbated. It is therefore necessary that in abstaining from heroin dependence, the heroin abusers should acquire sufficient quantities of antioxidants such as VC, VE and beta-CAR.
Collapse
Affiliation(s)
- J F Zhou
- 2nd Affiliated Hospital of the Zhejiang University, Hangzhou, China
| | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Zhou JF, Yan XF, Guo FZ, Sun NY, Qian ZJ, Ding DY. Effects of cigarette smoking and smoking cessation on plasma constituents and enzyme activities related to oxidative stress. Biomed Environ Sci 2000; 13:44-55. [PMID: 10853840] [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: 05/23/2023]
Abstract
In order to study effects of cigarette smoking and smoking cessation on plasma constituents and enzyme activities related to oxidative stress, 1255 smokers and 524 healthy non-smokers were investigated in terms of plasma levels of lipoperoxides (LPO), nitric oxide (NO), vitamin C (VC), vitamin E (VE) and beta-carotene (beta-CAR). Additionally, erythrocytes were examined to determine the level of LPO, the activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH-Px). The results showed that, when compared with the average values of the non-smoker group, the average plasma values of LPO, NO and the average erythrocyte value of LPO in the smoker group were significantly increased (P < 0. 001), while the average plasma values of VC, VE, beta-CAR, and the average erythrocyte activities of SOD, CAT, GSH-Px were significantly decreased (P < 0.001). A linear regression and correlation analysis for 65 male smokers who were all 40 years old showed that with longer smoking duration and greater daily smoking quantity, the plasma values of LPO, NO and the erythrocyte value of LPO were elevated, while the plasma values of VC, VE, beta-CAR and erythrocyte values of SOD, CAT, GSH-Px were decreased. In a group of 73 smokers who stopped smoking completely for six months, the average plasma values of LPO, NO and the average erythrocyte value of LPO decreased, although they were still significantly higher than those in the matched non-smoker group (P < 0.05). Additionally, the average plasma values of VC, VE, beta-CAR and the average erythrocyte values of SOD, CAT, GSH-Px increased, although they were still significantly lower than those in the matched non-smoker group (P < 0.05). However, after smoking cessation for one year the above average values were not significantly different from those in the matched non-smoker group (P > 0.05). This finding indicates that the markedly increased oxidative stress in smokers might gradually return to normal but only after a long period of smoking cessation. In conclusion, in the bodies of smokers a series of free radical chain reactions were gravely aggravated, the dynamic balance between oxidation and antioxidation was seriously disrupted, and oxidative stress was clearly exacerbated, which is closely related to many disorders or diseases in smokers. The present study underscored the need, urgency and importance of complete smoking cessation.
Collapse
Affiliation(s)
- J F Zhou
- The 2nd Affiliated Hospital of the Zhejiang University, Hangzhou, Zhejiang Province, China
| | | | | | | | | | | |
Collapse
|
39
|
Zheng LL, Yan XF, Zhang YZ. [Effect of Paeonia lactiflora on platelet cytosolic free calcium and erythrocyte membrane Ca(2+)-Mg(2+)-ATPase activity in hyperlipid rabbits]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1996; 16:295-6. [PMID: 9387724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The effect of Paeonia lactiflora (PL) on platelet cytosolic free calcium and erythrocyte membrane Ca(2+)-Mg(2+)-ATPase activity in hyperlipid rabbits were observed. Results showed the level of platelet cytosolic free calcium in the PL group (276.25 +/- 27.00 nmol/L) was significantly lower than that in the cholesterol group (390.88 +/- 70.00 nmol/L), P < 0.01, the basal and calmodulin-stimulated activities of erythocyte membrane Ca(2+)-Mg(2+)-ATP ase in PL group (0.79 +/- 0.05 mumol.pi-1.mg-1.h-1 and 1.34 +/- 0.10 mumol.pi-1.mg-1.h-1) were higher than that in the cholesterol group (0.65 +/- 0.09 mumol.pi-1.mg-1.h-1 and 1.04 +/- 0.13 mumol.pi-1.mg-1.h-1).
Collapse
|
40
|
Yan XF, He JG, Song HZ. [Interventional therapy of hepatic cavernous hemangioma]. Zhonghua Wai Ke Za Zhi 1994; 32:563-4. [PMID: 7720432] [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: 01/26/2023]
Abstract
From March. 1991 through Dec. 1993, 39 patients with hepatic cavernous hemangioma were treated by interventional therapy. After 1-3 periods of therapy 28 were cured, in 8 case the mass reduced by 50%, and in the remaining 3 cases the tumor reduced by 30%. Symptoms disappeared in all patients. The diagnosis of hepatic cavernous hemangioma, its differential diagnosis from malignant tumors, indications for interventional therapy, the use of embolizing materials were discussed.
Collapse
Affiliation(s)
- X F Yan
- Wuhan General Hospital, People's Liberation Army
| | | | | |
Collapse
|
41
|
He JG, Song HZ, Yan XF. [Interventional treatment of non-operable central lung cancer]. Zhonghua Wai Ke Za Zhi 1994; 32:106-7. [PMID: 7924660] [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: 01/27/2023]
Abstract
From 1992 Jan. to 1992 Dec. 32 patients with lung cancer which were centrally located and considered to be non-operable were treated by bronchial artery chemoembolization. Each patient received 1-3 times of this interventional therapy. Chest radiographic observation showed that, in 27 cases the lesions were significantly reduced and in 5 cases, the lesions were disappeared. There were 2 cases whose laryngeal nerves were temporally pressed by the lesion resulting in hoarseness were completely recovered. The early results were satisfactory in all of our patients. In this article, the diagnosis of central lung cancer, the techniques of interventional bronchial artery chemoembolization and how to avoid the high level paraplegia resulting from spinal injuries were also discussed.
Collapse
Affiliation(s)
- J G He
- Wuhan General Hospital, Guangzhou Division People's Liberation Army
| | | | | |
Collapse
|
42
|
Qiu HY, Wei TX, Zhang YR, Yan XF, Wei JH. [Effects of ranitidine on ventricular refractory period and fibrillation threshold of normal and ischemic ventricle in rabbits]. Zhongguo Yao Li Xue Bao 1993; 14:260-2. [PMID: 8237406] [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: 01/29/2023]
Abstract
Effects of ranitidine (Ran) on ventricular refractory period and fibrillation threshold of normal and ischemic ventricle were investigated in pentobarbitone anesthetized rabbits. In saline-treated rabbits, relative refractory period (RRP) and effective refractory period (ERP) were shortened from 132 +/- 24 to 126 +/- 25 ms (n = 10, P < 0.05) and from 118 +/- 22 to 108 +/- 27 ms (n = 10, P < 0.05) in boundary zone of ventricular ischemic regions, respectively. The ventricular fibrillation threshold (VFT) was decreased from 5.5 +/- 1.4 to 2.8 +/- 1.1 V (n = 10, P < 0.01) after coronary artery ligation (CAL). Ran (25 mg.kg-1, i.v.) not only prevented these changes, but also lengthened RRP from 123 +/- 14 to 136 +/- 10 ms (P < 0.05) and ERP from 111 +/- 16 to 126 +/- 12 ms (P < 0.05), and increased VFT from 4.7 +/- 0.8 to 7.4 +/- 1.8 V (P < 0.01) in normal ventricle. The results suggest that Ran may have anti-arrhythmic effects in rabbits.
Collapse
Affiliation(s)
- H Y Qiu
- Cardiovascular Disease Institute of He-nan Medical University, Zhengzhou, China
| | | | | | | | | |
Collapse
|
43
|
Tiekink ERT, Yan XF, Young CG. Structural Aspects of V2( µ;-S2)2(S2CNR2)4 Complexes: the X-Ray Crystal Structure of V2( µ;-S2)2(S2CNEt2)4.2CHBr3. Aust J Chem 1992. [DOI: 10.1071/ch9920897] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Brown V2(p-S2)2(S2CNEt2)4 is produced upon reaction of [vs4]3- with (Et2NCS2)2, in a synthesis similar to that described for V2( �-S2)2(S2CNBui2)4 ( Halbert , T. R., Hutchings, L. L., Rhodes, R., and Stiefel , E. I., J. Am. Chem. Soc., 1986, 108, 6437). Crystals of V2( �;-S2)2(S2CNEt2)4.2CHBr3 are orthorhombic and belong to space group Pbca , with a 10.909(2), b 20.492(2), c 20.471(2) � , V 4576.2 �3, and Z 4 dimers . The structure was solved by Patterson and Fourier methods and refined by using 1189 reflections to final R 0.061 ( Rw 0.059). The vanadium(IV) atoms in the dimeric complex are bridged by two �-k2S,S′: k2S,S′-S22- ligands [S(1)-S(2) 2.00(1) �] and a metal-metal single bond [V-V 2.900(6) �]. Each vanadium atom is further coordinated by two bidentate dithiocarbamate ligands whose arrangement defines a meso isomer with Λ and Δ configurations at the vanadium centres. This Λ Δ diastereomer differs from the Λ Λ -ΔΔ racemate structurally characterized in the case of V2(�-S2)2(S2CNBui2)4 but is the same as that found for the molybdenum(v) dication in [Mo2( �S2)2(S2CNEt2)4] (BF4)2.2CHBr3 ( Kocaba, T., Young, C. G., and Tiekink , E. R. T., Inorg. Chim. Acta, 1990, 174, 143).
Collapse
|
44
|
Yan XF, Young CG. MoO(S2)(S2CNR2)2 Complexes (R = Me, Et, Pr, Bu): Improved Syntheses and Thermogravimetric and Nuclear Magnetic Resonance Studies. Aust J Chem 1991. [DOI: 10.1071/ch9910361] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The reactions of MoO (S2CNR2)2 [R=Me, Et, Pr, Bu; formed in situ from the reactions of cis-MoO2(S2CNR2)2 and PR′3 (R′= Ph, Bu)] and propylene sulfide in 1,2-dichloroethane (for R = Me) or dichloromethane (others) constitute convenient, high-yield syntheses for the blue, seven-coordinate complexes MoO (S2)(S2CNR2)2 The complexes have been characterized by elemental analysis, infrared, electronic and 1H and 13C n.m.r. spectroscopy, and mass spectrometry. Thermogravimetric analyses indicate decomposition of the complexes to Mo2O2(μ-S)2(S2CNR2)2 at temperatures greater than 160°C.
Collapse
|
45
|
Zhang YZ, Yan XF. [Effects of nifedipine and Paeonia lactiflora on plasma TXB2 and 6-Keto-PGF1 alpha in cholesterol-fed rabbits]. Zhong Xi Yi Jie He Za Zhi 1990; 10:669-71, 645. [PMID: 2268930] [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: 12/31/2022]
Abstract
The authors examined the influences of nifedipine and Paeonia lactiflora (PL) on plasma LPO, TXB2 and 6-keto-PGF1 alpha in cholesterol-fed rabbits. In this study, oral administration of nifedipine (15 mg/kg per day) and PL (0.5 g/kg per day) with 2% cholesterol diet for 15 weeks caused 60.75% and 74.24% reduction in the lesion area of aorta respectively. The levels of plasma LPO, TXB2, cholesterol, phospholipid and calcium of the intimalmedia of the aorta in the treated groups were significantly lower than those in the control group, but the level of 6-keto-PGF1 alpha in the treated groups was significantly higher. The durations of TXB2 elevation and 6-keto-PGF1 alpha reduction were delayed. The ratio of TXB2/6-keto-PGF1 alpha tended to balance. The ratio of TXB2/6-keto-PGF1 alpha was significantly positive correlation with the percentage of lesion area of the aorta. It is demonstrated that calcium metabolism plays an important role in thromboxane, prostaglandin, and LPO synthesis. In conclusion, the inhibition of LPO production and the regulation of TXA2-PGI2 balance may be one of the mechanisms of anti-atherogenesis of calcium antagonists and PL.
Collapse
Affiliation(s)
- Y Z Zhang
- The First Affiliated Hospital of Henan Medical University, Zhengzhou
| | | |
Collapse
|
46
|
Yan WT, Liu ZM, Zhang YR, Li JZ, Fan ZH, Yan XF. Clinical study of 9 familial atrial fibrillation cases. Chin Med J (Engl) 1983; 96:441-4. [PMID: 6414778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
|