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Zhou ZX, Ma XF, Xiong WH, Ren Z, Jiang M, Deng NH, Zhou BB, Liu HT, Zhou K, Hu HJ, Tang HF, Zheng H, Jiang ZS. TRIM65 promotes vascular smooth muscle cell phenotypic transformation by activating PI3K/Akt/mTOR signaling during atherogenesis. Atherosclerosis 2024; 390:117430. [PMID: 38301602 DOI: 10.1016/j.atherosclerosis.2023.117430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 12/13/2023] [Accepted: 12/14/2023] [Indexed: 02/03/2024]
Abstract
BACKGROUND AND AIMS Tripartite motif (TRIM65) is an important member of the TRIM protein family, which is a newly discovered E3 ligase that interacts with and ubiquitinates various substrates and is involved in diverse pathological processes. However, the function of TRIM65 in atherosclerosis remains unarticulated. In this study, we investigated the role of TRIM65 in the pathogenesis of atherosclerosis, specifically in vascular smooth muscle cells (VSMCs) phenotype transformation, which plays a crucial role in formation of atherosclerotic lesions. METHODS AND RESULTS Both non-atherosclerotic and atherosclerotic lesions during autopsy were collected singly or pairwise from each individual (n = 16) to investigate the relationship between TRIM65 and the development of atherosclerosis. In vivo, Western diet-fed ApoE-/- mice overexpressing or lacking TRIM65 were used to assess the physiological function of TRIM65 on VSMCs phenotype, proliferation and atherosclerotic lesion formation. In vitro, VSMCs phenotypic transformation was induced by platelet-derived growth factor-BB (PDGF-BB). TRIM65-overexpressing or TRIM65-abrogated primary mouse aortic smooth muscle cells (MOASMCs) and human aortic smooth muscle cells (HASMCs) were used to investigate the mechanisms underlying the progression of VSMCs phenotypic transformation, proliferation and migration. Increased TRIM65 expression was detected in α-SMA-positive cells in the medial and atherosclerotic lesions of autopsy specimens. TRIM65 overexpression increased, whereas genetic knockdown of TRIM65 remarkably inhibited, atherosclerotic plaque development. Mechanistically, TRIM65 overexpression activated PI3K/Akt/mTOR signaling, resulting in the loss of the VSMCs contractile phenotype, including calponin, α-SMA, and SM22α, as well as cell proliferation and migration. However, opposite phenomena were observed when TRIM65 was deficient in vivo or in vitro. Moreover, in cultured PDGF-BB-induced TRIM65-overexpressing VSMCs, inhibition of PI3K by treatment with the inhibitor LY-294002 for 24 h markedly attenuated PI3K/Akt/mTOR activation, regained the VSMCs contractile phenotype, and blocked the progression of cell proliferation and migration. CONCLUSIONS TRIM65 overexpression enhances atherosclerosis development by promoting phenotypic transformation of VSMCs from contractile to synthetic state through activation of the PI3K/Akt/mTOR signal pathway.
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Affiliation(s)
- Zhi-Xiang Zhou
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Xiao-Feng Ma
- Department of Cardiology, Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Wen-Hao Xiong
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Zhong Ren
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Miao Jiang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Nian-Hua Deng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Bo-Bin Zhou
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Hui-Ting Liu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Kun Zhou
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Heng-Jing Hu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - Hui-Fang Tang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China
| | - He Zheng
- Department of Hepatobiliary Surgery, The Central Hospital of Shaoyang City and The Affiliated Shaoyang Hospital, Hengyang Medical School, University of South China, No. 360, Baoqing Middle Road, Hongqi Street, Daxiang District, Shaoyang City, 422000, PR China.
| | - Zhi-Sheng Jiang
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang City, Hunan Province, 421001, PR China.
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Zhao SJ, Yang M, Shu Y, Huang TT, Li CH, Zhu K, Tang HF. [Rhabdomyomatous dysplasia in pulmonary sequestration in children: a clinicopathological analysis of 15 cases]. Zhonghua Bing Li Xue Za Zhi 2024; 53:177-179. [PMID: 38281787 DOI: 10.3760/cma.j.cn112151-20231023-00287] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Affiliation(s)
- S J Zhao
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China Department of Pathology, Xinjiang Urumqi First People's Hospital (Urumqi Children's Hospital), Urumqi 830002, China
| | - M Yang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Y Shu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - T T Huang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - C H Li
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - K Zhu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - H F Tang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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Qian FC, Zhou LW, Zhu YB, Li YY, Yu ZM, Feng CC, Fang QL, Zhao Y, Cai FH, Wang QY, Tang HF, Li CQ. scATAC-Ref: a reference of scATAC-seq with known cell labels in multiple species. Nucleic Acids Res 2024; 52:D285-D292. [PMID: 37897340 PMCID: PMC10767920 DOI: 10.1093/nar/gkad924] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/14/2023] [Accepted: 10/16/2023] [Indexed: 10/30/2023] Open
Abstract
Chromatin accessibility profiles at single cell resolution can reveal cell type-specific regulatory programs, help dissect highly specialized cell functions and trace cell origin and evolution. Accurate cell type assignment is critical for effectively gaining biological and pathological insights, but is difficult in scATAC-seq. Hence, by extensively reviewing the literature, we designed scATAC-Ref (https://bio.liclab.net/scATAC-Ref/), a manually curated scATAC-seq database aimed at providing a comprehensive, high-quality source of chromatin accessibility profiles with known cell labels across broad cell types. Currently, scATAC-Ref comprises 1 694 372 cells with known cell labels, across various biological conditions, >400 cell/tissue types and five species. We used uniform system environment and software parameters to perform comprehensive downstream analysis on these chromatin accessibility profiles with known labels, including gene activity score, TF enrichment score, differential chromatin accessibility regions, pathway/GO term enrichment analysis and co-accessibility interactions. The scATAC-Ref also provided a user-friendly interface to query, browse and visualize cell types of interest, thereby providing a valuable resource for exploring epigenetic regulation in different tissues and cell types.
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Affiliation(s)
- Feng-Cui Qian
- The First Affiliated Hospital & Hunan Provincial Key Laboratory of Multi-omics And Artificial Intelligence of Cardiovascular Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital, Cardiovascular Lab of Big Data and Imaging Artificial Intelligence, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Li-Wei Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China
| | - Yan-Bing Zhu
- Beijing Clinical Research Institute, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yan-Yu Li
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, 163319, China
| | - Zheng-Min Yu
- School of Computer, University of South China, Hengyang, Hunan, 421001, China
| | - Chen-Chen Feng
- School of Medical Informatics, Daqing Campus, Harbin Medical University, Daqing, 163319, China
| | - Qiao-Li Fang
- School of Computer, University of South China, Hengyang, Hunan, 421001, China
| | - Yu Zhao
- School of Computer, University of South China, Hengyang, Hunan, 421001, China
| | - Fu-Hong Cai
- School of Computer, University of South China, Hengyang, Hunan, 421001, China
| | - Qiu-Yu Wang
- The First Affiliated Hospital, Cardiovascular Lab of Big Data and Imaging Artificial Intelligence, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Hui-Fang Tang
- The First Affiliated Hospital & Hunan Provincial Key Laboratory of Multi-omics And Artificial Intelligence of Cardiovascular Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, China
| | - Chun-Quan Li
- The First Affiliated Hospital & Hunan Provincial Key Laboratory of Multi-omics And Artificial Intelligence of Cardiovascular Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- Hunan Provincial Maternal and Child Health Care Hospital, National Health Commission Key Laboratory of Birth Defect Research and Prevention, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences & MOE Key Lab of Rare Pediatric Diseases, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
- School of Computer, University of South China, Hengyang, Hunan, 421001, China
- The First Affiliated Hospital, Cardiovascular Lab of Big Data and Imaging Artificial Intelligence, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
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4
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Li YJ, Shi JR, Li SC, Wang LM, Dhar R, Li N, Cao XW, Li ZG, Tang HF. Phosphodiesterase type 10A inhibitor attenuates lung fibrosis by targeting myofibroblast activation. iScience 2023; 26:106586. [PMID: 37138780 PMCID: PMC10149334 DOI: 10.1016/j.isci.2023.106586] [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] [Received: 09/23/2022] [Revised: 01/30/2023] [Accepted: 04/03/2023] [Indexed: 05/05/2023] Open
Abstract
Pulmonary fibrosis (PF) is a fatal and irreversible respiratory disease accompanied by excessive fibroblast activation. Previous studies have suggested that cAMP signaling pathway and cGMP-PKG signaling pathway are continuously down-regulated in lung fibrosis, whereas PDE10A has a specifically expression in fibroblasts/myofibroblasts in lung fibrosis. In this study, we demonstrated that overexpression of PDE10A induces myofibroblast differentiation, and papaverine, as a PDE10A inhibitor used for vasodilation, inhibits myofibroblast differentiation in human fibroblasts, Meanwhile, papaverine alleviated bleomycin-induced pulmonary fibrosis and amiodarone-induced oxidative stress, papaverine downregulated VASP/β-catenin pathway to reduce the myofibroblast differentiation. Our results first demonstrated that papaverine inhibits TGFβ1-induced myofibroblast differentiation and lung fibrosis by VASP/β-catenin pathway.
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Affiliation(s)
- Ya-Jun Li
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Jian-Rong Shi
- Department of Clinical Laboratory, Children’s Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, Zhejiang 310003, China
| | - Shu-Chan Li
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Lu-Ming Wang
- Department of Thoracic Surgery, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China
| | - Rana Dhar
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Ning Li
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Xin-Wei Cao
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
| | - Zi-Gang Li
- Department of Anesthesiology, Women’s Hospital, Zhejiang University, School of Medicine, Hangzhou, Zhejiang 310006, China
| | - Hui-Fang Tang
- Department of Pharmacology and Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310058, China
- Clinical Laboratory, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, and Key Laboratory of Precision Medicine in Diagnosis and Monitoring Research of Zhejiang Province, Hangzhou, Zhejiang 310016, China
- Corresponding author
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5
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Wang RJ, Xu C, Tang HF. A cardiovascular polypharmacy perspective on octogenarians with HFpEF. Int J Cardiol 2023; 382:60-61. [PMID: 36965634 DOI: 10.1016/j.ijcard.2023.03.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 03/21/2023] [Indexed: 03/27/2023]
Affiliation(s)
- Ru-Jing Wang
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Clinical Research Center for Myocardial Injury in Hunan Province, Hengyang, Hunan 421001, China; The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Can Xu
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Hui-Fang Tang
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Clinical Research Center for Myocardial Injury in Hunan Province, Hengyang, Hunan 421001, China; The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
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6
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Wang RJ, Xu C, Tang HF. Reactive hyperemia index as an integrated maker in prediction of bleeding and cardiovascular death in ACS. Int J Cardiol 2023; 382:85-86. [PMID: 36965635 DOI: 10.1016/j.ijcard.2023.03.045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/21/2023] [Indexed: 03/27/2023]
Affiliation(s)
- Ru-Jing Wang
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan,421001, China; Clinical Research Center for Myocardial Injury in Hunan Province, Hengyang, Hunan 421001, China; The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Can Xu
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan,421001, China
| | - Hui-Fang Tang
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan,421001, China; Clinical Research Center for Myocardial Injury in Hunan Province, Hengyang, Hunan 421001, China; The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
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Liu Y, Luo YY, Gu WZ, Tang HF, Chen J. [Four cases of collagenous gastritis in children]. Zhonghua Er Ke Za Zhi 2022; 60:1339-1341. [PMID: 36444443 DOI: 10.3760/cma.j.cn112140-20220309-00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- Y Liu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Y Y Luo
- Department of Gastroenterology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - W Z Gu
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - H F Tang
- Department of Pathology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - J Chen
- Department of Gastroenterology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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Hu HJ, Wang XH, Zhang TQ, Liu Y, Chen ZR, Zhang ZZ, Huang H, Tang HF, Jiang ZS. PLK1 promotes cholesterol efflux and alleviates atherosclerosis by up-regulating ABCA1 and ABCG1 expression via the AMPK/PPARγ/LXRα pathway. Biochim Biophys Acta Mol Cell Biol Lipids 2022; 1867:159221. [PMID: 35981705 DOI: 10.1016/j.bbalip.2022.159221] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 07/31/2022] [Accepted: 08/10/2022] [Indexed: 10/15/2022]
Abstract
Polo-like kinase 1 (PLK1) is a serine/threonine kinase involving lipid metabolism and cardiovascular disease. However, its role in atherogenesis has yet to be determined. The aim of this study was to observe the impact of PLK1 on macrophage lipid accumulation and atherosclerosis development and to explore the underlying mechanisms. We found a significant reduction of PLK1 expression in lipid-loaded macrophages and atherosclerosis model mice. Lentivirus-mediated overexpression of PLK1 promoted cholesterol efflux and inhibited lipid accumulation in THP-1 macrophage-derived foam cells. Mechanistic analysis revealed that PLK1 stimulated the phosphorylation of AMP-activated protein kinase (AMPK), leading to activation of the peroxisome proliferator-activated receptor γ (PPARγ)/liver X receptor α (LXRα) pathway and up-regulation of ATP binding cassette transporter A1 (ABCA1) and ABCG1 expression. Injection of lentiviral vector expressing PLK1 increased reverse cholesterol transport, improved plasma lipid profiles and decreased atherosclerotic lesion area in apoE-deficient mice fed a Western diet. PLK1 overexpression also facilitated AMPK and HSL phosphorylation and enhanced the expression of PPARγ, LXRα, ABCA1, ABCG1 and LPL in the aorta. In summary, these data suggest that PLK1 inhibits macrophage lipid accumulation and mitigates atherosclerosis by promoting ABCA1- and ABCG1-dependent cholesterol efflux via the AMPK/PPARγ/LXRα pathway.
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Affiliation(s)
- Heng-Jing Hu
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Department of Cardiovascular Disease and Key Lab for Atherosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Xiu-Heng Wang
- The First Affiliated Hospital, Department of Medical-record, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Tian-Qing Zhang
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yao Liu
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Zheng-Rong Chen
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Zhi-Zhu Zhang
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Hong Huang
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Hui-Fang Tang
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Zhi-Sheng Jiang
- The First Affiliated Hospital, Department of Cardiovascular Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China; Department of Cardiovascular Disease and Key Lab for Atherosclerosis of Hunan Province, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China.
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Liu Y, Zhu K, Liu L, Tang HF. [Cribriform neuroepithelial tumor: report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:551-553. [PMID: 35673730 DOI: 10.3760/cma.j.cn112151-20211104-00799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- Y Liu
- Graduate School of Zhejiang Chinese Medical University, Hangzhou 310053, China Department of Pathology,the Children's Hospital, Zhejiang University School of Medicine; National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - K Zhu
- Department of Pathology,the Children's Hospital, Zhejiang University School of Medicine; National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - L Liu
- Department of Pathology,the Children's Hospital, Zhejiang University School of Medicine; National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - H F Tang
- Department of Pathology,the Children's Hospital, Zhejiang University School of Medicine; National Clinical Research Center for Child Health, Hangzhou 310052, China
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Hu HJ, Wang XH, Liu Y, Zhang TQ, Chen ZR, Zhang C, Tang ZH, Qu SL, Tang HF, Jiang ZS. Hydrogen Sulfide Ameliorates Angiotensin II-Induced Atrial Fibrosis Progression to Atrial Fibrillation Through Inhibition of the Warburg Effect and Endoplasmic Reticulum Stress. Front Pharmacol 2021; 12:690371. [PMID: 34950023 PMCID: PMC8689064 DOI: 10.3389/fphar.2021.690371] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 11/24/2021] [Indexed: 12/16/2022] Open
Abstract
Atrial fibrosis is the basis for the occurrence and development of atrial fibrillation (AF) and is closely related to the Warburg effect, endoplasmic reticulum stress (ERS) and mitochondrion dysfunctions-induced cardiomyocyte apoptosis. Hydrogen sulfide (H2S) is a gaseous signalling molecule with cardioprotective, anti-myocardial fibrosis and improved energy metabolism effects. Nevertheless, the specific mechanism by which H2S improves the progression of atrial fibrosis to AF remains unclear. A case-control study of patients with and without AF was designed to assess changes in H2S, the Warburg effect, and ERS in AF. The results showed that AF can significantly reduce cystathionine-γ-lyase (CSE) and 3-mercaptopyruvate thiotransferase (3-MST) expression and the H2S level, induce cystathionine-β-synthase (CBS) expression; increase the Warburg effect, ERS and atrial fibrosis; and promote left atrial dysfunction. In addition, AngII-treated SD rats had an increased Warburg effect and ERS levels and enhanced atrial fibrosis progression to AF compared to wild-type SD rats, and these conditions were reversed by sodium hydrosulfide (NaHS), dichloroacetic acid (DCA) or 4-phenylbutyric acid (4-PBA) supplementation. Finally, low CSE levels in AngII-induced HL-1 cells were concentration- and time-dependent and associated with mitochondrial dysfunction, apoptosis, the Warburg effect and ERS, and these effects were reversed by NaHS, DCA or 4-PBA supplementation. Our research indicates that H2S can regulate the AngII-induced Warburg effect and ERS and might be a potential therapeutic drug to inhibit atrial fibrosis progression to AF.
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Affiliation(s)
- Heng-Jing Hu
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China.,Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, China
| | - Xiu-Heng Wang
- Department of Nuclear Medicine Lab, First Affiliated Hospital of University of South China, Hengyang, China
| | - Yao Liu
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Tian-Qing Zhang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Zheng-Rong Chen
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Chi Zhang
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Zhi-Han Tang
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Shun-Lin Qu
- Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
| | - Hui-Fang Tang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China
| | - Zhi-Sheng Jiang
- Department of Cardiology Laboratory, First Affiliated Hospital of University of South China, Hengyang, China.,Postdoctoral Research Station of Basic Medicine, University of South China, Hengyang, China.,Institute of Cardiovascular Disease and Key Lab for Arteriosclerology of Hunan Province, University of South China, Hengyang, China
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11
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Liu Y, Tang HF. [Anaplastic lymphoma kinase positive histiocytosis: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1395-1397. [PMID: 34865436 DOI: 10.3760/cma.j.cn112151-20210304-00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- Y Liu
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine,Hangzhou 310000, China
| | - H F Tang
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine,Hangzhou 310000, China
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12
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Zhao ML, Chang DE, Tang HF. [The clinicopathological features and research progress of congenital mesoblastic nephroma]. Zhonghua Bing Li Xue Za Zhi 2021; 50:553-556. [PMID: 33915672 DOI: 10.3760/cma.j.cn112151-20201224-00954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M L Zhao
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - D E Chang
- Department of Pathology and Laboratory Medicine, KK Women's and Children's Hospital, Singapore 229899, Singapore
| | - H F Tang
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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13
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Tang HF, Yang B, Lin Q, Liang JJ, Mou ZW. Dynamic biomechanical effect of lower body positive pressure treadmill training for hemiplegic gait rehabilitation after stroke: A case report. World J Clin Cases 2021; 9:632-638. [PMID: 33553401 PMCID: PMC7829723 DOI: 10.12998/wjcc.v9.i3.632] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 11/18/2020] [Accepted: 11/29/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Lower body positive pressure (LBPP) treadmill has potential applications for improving the gait of patients after stroke, but the related mechanism remains unclear.
CASE SUMMARY A 62-year-old male patient suffered from ischemic stroke with hemiplegic gait. He was referred to our hospital because of a complaint of left limb weakness for 2 years. The LBPP training was performed one session per day and six times per week for 2 wk. The dynamic plantar pressure analysis was taken every 2 d. Meanwhile, three-digital gait analysis and synchronous electromyography as well as clinical assessments were taken before and after LBPP intervention and at the 4-wk follow-up. During LBPP training, our patient not only improved his lower limb muscle strength and walking speed, but more importantly, the symmetry index of various biomechanical indicators improved. Moreover, the patient’s planter pressure transferring from the heel area to toe area among the LBPP training process and the symmetry of lower body biomechanical parameters improved.
CONCLUSION In this study, we documented a dynamic improvement of gait performance in a stroke patient under LBPP training, which included lower limb muscle strength, walking speed, and symmetry of lower limb biomechanics. Our study provides some crucial clues about the potential dynamic mechanism for LBPP training on gait and balance improvement, which is related to rebuilding foot pressure distribution and remodeling symmetry of biomechanics of the lower limb.
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Affiliation(s)
- Hui-Fang Tang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China
| | - Bing Yang
- Department of Neurology, The First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China
| | - Qiang Lin
- Department of Rehabilitation Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou 510070, Guangdong Province, China
| | - Jun-Jie Liang
- Department of Rehabilitation Medicine, The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou 510070, Guangdong Province, China
| | - Zhi-Wei Mou
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Jinan University, Guangzhou 510630, Guangdong Province, China
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Zheng XY, Tong L, Shen D, Yu JE, Hu ZQ, Li YJ, Zhang LJ, Xue EF, Tang HF. Airborne Bacteria Enriched PM2.5 Enhances the Inflammation in an Allergic Adolescent Mouse Model Induced by Ovalbumin. Inflammation 2020; 43:32-43. [PMID: 31894450 DOI: 10.1007/s10753-019-01071-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Air pollution events frequently occur in China during the winter. Most investigations of pollution studies have focused on the physical and chemical properties of PM2.5. Many of these studies have indicated that PM2.5 exacerbates asthma or eosinophil inflammation. However, few studies have evaluated the relationship between bacterial loads in PM2.5, and especially pathogenic bacteria and childhood asthma. Airborne PM2.5 samples from heavily polluted air were collected in Hangzhou, China between December 2014 and January 2015. PM2.5 and ovalbumin (OVA) were intratracheally administered twice in 4-week intervals to induce the allergic pulmonary inflammation in adolescent C57/BL6 mice. PM2.5 exposure caused neutrophilic alveolitis and bronchitis. In the presence of OVA, the levels of the Th2 cytokines IL-4, IL-12, and IL-17 were significantly increased in bronchoalveolar lavage fluids (BALF) after PM2.5 exposure, while eosinophil infiltration and mucin secretion were also induced. In addition to adjuvant effects on OVA-induced allergic inflammation, PM2.5 exposure also led to the maturation of dendritic cells. These results suggest that PM2.5 exposure may aggravate lung eosinophilia and that PM2.5-bound microbial can exacerbate allergic and inflammatory lung diseases.
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Affiliation(s)
- Xu-Yang Zheng
- Department of Pediatric, Affiliated Hangzhou First People's Hospital, Zhejiang University school of Medicine, 261 Huansha Road, Hangzhou, 310001, China.
| | - Lin Tong
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Dan Shen
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Jia-En Yu
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Zheng-Qiang Hu
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Ya-Jun Li
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Le-Jun Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - En-Fu Xue
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China
| | - Hui-Fang Tang
- Department of Pharmacology, School of Basic Medical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, Zhejiang, China.
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15
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Zhong H, Tang HF, Kai Y. N6-methyladenine RNA Modification (m6A): An Emerging Regulator of Metabolic Diseases. Curr Drug Targets 2020; 21:1056-1067. [PMID: 32066359 DOI: 10.2174/1389450121666200210125247] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Revised: 11/15/2019] [Accepted: 11/26/2019] [Indexed: 11/22/2022]
Abstract
N6-methyladenine RNA modification (m6A) is an RNA methylation modification catalyzed
by methyltransferase at the 6th position nitrogen atom of adenine (A), which is the most common
chemical modification of eukaryotic messenger RNA (mRNA). Recently, m6A has been found to play
an important role in the dynamic regulation of RNA, which is crucial for some physiological and
pathophysiological processes such as adipogenesis, cell differentiation, and the immune/inflammatory
response. Metabolic diseases are a series of chronic inflammatory disorders caused by metabolic dysfunction
of proteins, glucose, and lipids. Emerging studies have shown that m6A plays an important
role in the process of metabolic diseases such as obesity, type 2 diabetes mellitus (T2DM) and cardiovascular
diseases (CVDs) via regulation of glucose/lipid metabolism and the immune/inflammatory
response. In this review, we will summarize the role of m6A in metabolic diseases, which may provide
new ideas for the prevention and treatment of metabolic diseases.
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Affiliation(s)
- Hui Zhong
- Research Laboratory of Translational Medicine, Heng Yang Medical School, University of South China, Hengyang 421001, China
| | - Hui-Fang Tang
- Department of Cardiology, The First Affiliated Hospital of University of South China, Hengyang, Hunan Province, China
| | - Yin Kai
- Research Laboratory of Translational Medicine, Heng Yang Medical School, University of South China, Hengyang 421001, China
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16
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Zhao ML, Zhao Y, Gu WZ, Tang HF. [Large B-cell lymphoma with atypical IRF4 rearrangement: report of a case]. Zhonghua Bing Li Xue Za Zhi 2020; 49:746-748. [PMID: 32610392 DOI: 10.3760/cma.j.cn112151-20200213-00089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M L Zhao
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - Y Zhao
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - W Z Gu
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
| | - H F Tang
- Department of Pathology, the Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China
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17
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Li J, Wang LJ, Wang F, Tang HF, Chen R, Yang TT, Das S, Xiao JJ. P5396CRISPR/Cas9 mediated miR-29b editing restores muscle atrophy and exercise capacity in mice. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.0356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Muscle atrophy is the loss of skeletal muscle mass and strength in response to diversity catabolic stimuli, such as heart failure. At present, no effective treatment except exercise is validated on reducing multiple muscle atrophy clinically. We have recently reported that microRNA-29b (miR-29b) promotes multiple types of muscle atrophy.
Purpose
The goal of this study was to assess whether genome editing using a clustered regularly interspaced short palindromic repeat/Cas9 (CRISPR/Cas9) system can efficiently introduce loss-of-function mutations into the endogenous miR-29b in vivo and as a potential therapy by treating muscle atrophy.
Methods
We used lentivirus to express CRISPR-associated 9 and a CRISPR guide RNA targeting miR-29b. Mutagenesis rate of miR-29b and off-target mutagenesis were detected by T7 Endonuclease I (T7EI) Assay. The expression level of miR-29b were measured in vitro and vivo after administration of the virus by using qRT-PCR. After intramuscular administration of the virus, the angiotensin II (AngII), immobilization and denervation-induced muscle atrophy were performed. Then muscle function was assessed in exercise capacity, the appearance and weight of muscle, the size of the muscle fibers, molecular and cellular detection.
Results
Here, we report that CRISPR/Cas9 mediated genome editing through intramuscular administration efficiently targeting the biogenesis processing sites in pre-miR-29b. No off-target mutagenesis was detected in 10 selected sites. This CRISPR-based treatment resulted in decreased miR-29b levels specifically. In vivo, this CRISPR-based treatment could ameliorate the muscle atrophy induced by angiotensin II (AngII), immobilization and denervation via activation of PI3K-AKT-mTOR signaling pathway and protect against AngII-induced apoptosis in mice. Moreover, the exercise capacity is also significantly enhanced.
Conclusion
Our work establishes CRISPR/Cas9 based gene targeting on miRNA as a potential durable therapy for treatment of muscle atrophy and expands the strategies available interrogating miRNA function in vivo.
Acknowledgement/Funding
The grants from National Natural Science Foundation of China (81722008, 91639101 and 81570362 to JJ Xiao)
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Affiliation(s)
- J Li
- Shanghai University, Shanghai, China
| | - L J Wang
- Shanghai University, Shanghai, China
| | - F Wang
- Tongji Hospital affiliated to Tongji University, Division of Gastroenterology and Hepatology, Shanghai, China
| | - H F Tang
- Shanghai University, Shanghai, China
| | - R Chen
- Shanghai University, Shanghai, China
| | - T T Yang
- Shanghai University, Shanghai, China
| | - S Das
- Massachusetts General Hospital, Cardiovascular Division, Boston, United States of America
| | - J J Xiao
- Shanghai University, Shanghai, China
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18
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Liu Y, Tang HF. [Rhabdomyomatous mesenchymal hamartoma of skin: report of two cases]. Zhonghua Bing Li Xue Za Zhi 2019; 48:562-563. [PMID: 31288315 DOI: 10.3760/cma.j.issn.0529.5807.2019.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Y Liu
- Department of Pathology, Children's Hospital Affiliated to Medical College of Zhejiang University, Hangzhou 310058, China
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19
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Zheng XY, Chen JC, Xie QM, Chen JQ, Tang HF. Anti‑inflammatory effect of ciclamilast in an allergic model involving the expression of PDE4B. Mol Med Rep 2019; 19:1728-1738. [PMID: 30628641 DOI: 10.3892/mmr.2019.9802] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 11/26/2018] [Indexed: 11/05/2022] Open
Abstract
The present study aimed to investigate the potent inhibitory effects and possible biochemical basis of the novel phosphodiesterase 4 (PDE4) inhibitor ciclamilast, which is a derivative of piclamilast (RP 73401), on PDE4 and allergic inflammation. Ciclamilast was orally administered to allergic rats, their lungs and bronchoalveolar lavage fluid (BALF) were harvested, and their levels of inflammation and goblet cell hyperplasia, particularly cAMP‑PDE activity, and expression and distribution of PDE4 subtypes were determined. The results suggested that oral administration of ciclamilast significantly reduced the total leukocyte number and eosinophil number in BALF and suppressed lung histology changes, including the infiltration of inflammatory cells into the perivascular and peribronchial spaces, structural changes and goblet cell hyperplasia. For eosinophil infiltration, ciclamilast exhibited improved selectivity compared with piclamilast. Furthermore, ciclamilast significantly inhibited the upregulated activity of cAMP‑PDE and showed improved selective inhibition of the protein expression of PDE4B than piclamilast in a dose‑dependent manner. The mRNA expression of PDE4D was significantly increased in allergic rats, but PDE4B was not. PDE4B was mainly distributed in the cytoplasm, whereas PDE4D was mainly distributed in the cell membrane. The improved anti‑inflammatory activity of ciclamilast compared with piclamilast may be due to its higher level of inhibition of the activity, mRNA and protein expression of PDE4, particularly its effect on PDE4B.
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Affiliation(s)
- Xu-Yang Zheng
- Department of Pediatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310006, P.R. China
| | - Jun-Chun Chen
- Department of Education, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, P.R. China
| | - Qiang-Min Xie
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
| | - Ji-Qiang Chen
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
| | - Hui-Fang Tang
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, P.R. China
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20
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Zhu HB, Su CJ, Tang HF, Ruan Z, Liu DH, Wang H, Qian YL. [Rapid determination of volatile organic compounds in workplace air by protable gas chromatography-mass spectrometer]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:777-780. [PMID: 29294558 DOI: 10.3760/cma.j.issn.1001-9391.2017.10.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To establish a method for rapid determination of 47 volatile organic compounds in the air of workplace using portable gas chromatography-mass spectrometer(GC-MS). Methods: The mixed standard gas with different concentration levels was made by using the static gas distribution method with the high purity nitrogen as dilution gas. The samples were injected into the GC-MS by a hand-held probe. Retention time and characteristic ion were used for qualitative analysis,and the internal standard method was usd for quantitation. Results: The 47 poisonous substances were separated and determined well. The linear range of this method was 0.2-16.0 mg/m(3),and the relative standard deviation of 45 volatile ovganic compounds was 3.8%-15.8%. The average recovery was 79.3%-119.0%. Conclusion: The method is simple,accurate,sensitive,has good separation effect,short analysis period, can be used for qualitative and quantitative analysis of volatile organic compounds in the workplace, and also supports the rapid identification and detection of occupational hazards.
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Affiliation(s)
- H B Zhu
- Zhejiang Academy of Medical Sciences, Hangzhou 310013, China
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21
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Wang XF, Song SD, Li YJ, Hu ZQ, Zhang ZW, Yan CG, Li ZG, Tang HF. Protective Effect of Quercetin in LPS-Induced Murine Acute Lung Injury Mediated by cAMP-Epac Pathway. Inflammation 2018; 41:1093-1103. [PMID: 29569077 DOI: 10.1007/s10753-018-0761-3] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Quercetin (Que) as an abundant flavonol element possesses potent antioxidative properties and has protective effect in lipopolysaccharide (LPS)-induced acute lung injury (ALI), but the specific mechanism is still unclear, so we investigated the effect of Que from in vivo and in vitro studies and the related mechanism of cAMP-PKA/Epac pathway. The results in mice suggested that Que can inhibit the release of inflammatory cytokine, block neutrophil recruitment, and decrease the albumin leakage in dose-dependent manners. At the same time, Que can increase the cAMP content of lung tissue, and Epac content, except PKA. The results in epithelial cell (MLE-12) suggested that Que also can inhibit the inflammatory mediators keratinocyte-derived chemokines release after LPS stimulation; Epac inhibitor ESI-09 functionally antagonizes the inhibitory effect of Que; meanwhile, PKA inhibitor H89 functionally enhances the inhibitory effect of Que. Overexpression of Epac1 in MLE-12 suggested that Epac1 enhance the effect of Que. All those results suggested that the protective effect of quercetin in ALI is involved in cAMP-Epac pathway.
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Affiliation(s)
- Xue-Feng Wang
- Second Affiliated Hospital, Zhejiang Chinese Medical University, Hangzhou, 310005, China
| | - Shun-de Song
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Ya-Jun Li
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zheng Qiang Hu
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Zhe-Wen Zhang
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Chun-Guang Yan
- Department of Pathogenic Biology and Immunology, Southeast University School of Medicine, Nanjing, 210009, China
| | - Zi-Gang Li
- Department of Anesthesiology, Women's Hospital,School of Medicine, Zhejiang University , Hangzhou, 310006, China
| | - Hui-Fang Tang
- Zhejiang Respiratory Drugs Research Laboratory, School of Basic Medical Sciences, Zhejiang University, Hangzhou, 310058, China.
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22
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Liu Y, Tang HF, Ning Z, Zheng H, He N, Zhang YY. [Co-infections of HIV, syphilis and HSV-2 among men who have sex with men at the voluntary HIV counseling and testing clinics in Shanghai]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 38:1363-1366. [PMID: 29060980 DOI: 10.3760/cma.j.issn.0254-6450.2017.10.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the prevalence rates of HIV-syphilis and HIV-herpes simplex virus 2 (HSV-2) co-infections and related factors among men having sex with men (MSM) who had visited the voluntary HIV counseling and testing (VCT) clinics in Shanghai, China. Methods: 756 eligible MSM who attended the VCT clinics of Shanghai Municipality and Putuo district during March to August, 2015 were recruited to participate in a cross-sectional survey with questionnaire interview and blood testing for HIV, syphilis and HSV-2. Results: A total of 732 participants completed a valid questionnaire survey. The prevalence rates were 3.3% (24/732) for HIV/Syphilis co-infection, 1.9% (14/732) for HIV/HSV-2 co-infection, and 0.7% (5/732) for HIV/Syphilis/HSV-2 co-infection, respectively. HIV prevalence appeared significantly higher among syphilis-infected participants (45.3%, 24/53) than those without Syphilis (7.2%, 61/679) (χ(2)=63.11, P<0.001), and was also significantly higher among HSV-2 infected participants (34.1%, 14/41) than those without the HSV-2 infection (10.3%, 71/691) (χ(2)=21.49, P<0.001). Results from the Multivariate regression analysis indicated that participants who were migrants (OR=3.50, 95%CI: 1.01-12.17), having had middle school or lower levels of education (OR=4.46, 95%CI: 1.54-12.87) or ever used illicit drugs (OR=4.25, 95%CI: 1.67-10.82, P=0.002) were under possible risks on HIV and Syphilis co-infection. Those participants who had high middle school or lower levels of education (OR=6.87, 95%CI: 1.86-25.42; OR=9.82, 95%CI: 2.25-42.85) were under risk on HIV and HSV-2 co-infection. Conclusion: HIV/Syphilis and HIV/HSV-2 co-infection were seen among MSM who attended the VCT clinics in Shanghai that called for special attention, especially on migrants, those with low education or illicit drug users.
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Affiliation(s)
- Y Liu
- Putuo District Center for Disease Control and Prevention, Shanghai 200333, China; School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - H F Tang
- Putuo District Center for Disease Control and Prevention, Shanghai 200333, China
| | - Z Ning
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - H Zheng
- Shanghai Piaoxue Cultural Media Limited, Shanghai 200023, China
| | - N He
- School of Public Health, The Key Laboratory of Public Health Safety of Ministry of Education, Fudan University, Shanghai 200032, China
| | - Y Y Zhang
- Putuo District Center for Disease Control and Prevention, Shanghai 200333, China
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Ruan Z, Tang HF, Wang H. [Quality control methods of gas chromatography⁃ion trap mass determine for the 2, 5⁃hexanedione in normal population urinary]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2017; 35:319-320. [PMID: 28614944 DOI: 10.3760/cma.j.issn.1001-9391.2017.04.027] [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: 06/07/2023]
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24
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Ruan Z, Tang HF, Zhu HB. [Determination in the air of workplace dimethyl succinate and dimethyl glutarate and dimethyl adipate by gas chromatography]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:941-944. [PMID: 28241689 DOI: 10.3760/cma.j.issn.1001-9391.2016.12.017] [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: 06/06/2023]
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25
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Wei JS, Jin ZB, Yin ZQ, Xie QM, Chen JQ, Li ZG, Tang HF. Effects of local anesthetics on contractions of pregnant and non-pregnant rat myometriumin vitro. ACTA ACUST UNITED AC 2014; 101:228-35. [DOI: 10.1556/aphysiol.101.2014.2.11] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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26
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Yao HW, Xie QM, Chen JQ, Deng YM, Tang HF. RETRACTED: TGF-β1 induces alveolar epithelial to mesenchymal transition in vitro. Life Sci 2014; 99:69. [DOI: 10.1016/j.lfs.2013.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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27
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Gao CQ, Ma QG, Ji C, Luo XG, Tang HF, Wei YM. Evaluation of the compositional and nutritional values of phytase transgenic corn to conventional corn in roosters. Poult Sci 2012; 91:1142-8. [PMID: 22499872 DOI: 10.3382/ps.2011-01915] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Three experiments were conducted to evaluate the compositional and nutritional values of corn grains [phytase transgenic corn (PTC) and isogenic conventional corn (CC)] and compare the efficacy of corn-based phytase and extraneous microbial phytase for enhancing the utilization of phytate phosphorus (P) in single corn or corn-soybean mixed meals (corn:soybean = 2.5:1, wt:wt) fed to roosters. Following a 48-h fasting period, 16 roosters were given 50 g of each sample via crop intubation and excreta were collected for 48 h. Nitrogen-free and phosphorus-free diets were used to evaluate endogenous amino acid and endogenous P losses, respectively. Chemical composition was not different between PTC and CC, whereas the phytase content for PTC was greater than CC (8,047 vs. 37 FTU/kg of corn, DM basis; P < 0.001). No difference was observed in the TME and true amino acid availability values between the PTC and CC in roosters. The true P utilization for PTC was greater than CC (37.92 vs. 55.85%; P < 0.001), and CC and PTC contained 0.13 and 0.19% available P (AP, DM basis; P < 0.001), respectively. There was no difference in P utilization (72.76 vs. 70.23%; P > 0.05) between roosters fed PTC and extraneous microbial phytase in equivalent FTU/kg of diets. The results of this study indicated that the chemical composition, TME, and true amino acid availability in PTC are essentially equivalent to that in CC, and the true P utilization for roosters is higher in PTC than in CC. Corn expressing phytase is as efficacious as equivalent microbial phytase when supplemented in corn-soybean diets for chickens.
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Affiliation(s)
- C Q Gao
- College of Animal Science and Technology, China Agricultural University, Beijing, People's Republic of China
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Shi JR, Mao LG, Jiang RA, Qian Y, Tang HF, Chen JQ. Monoammonium glycyrrhizinate inhibited the inflammation of LPS-induced acute lung injury in mice. Int Immunopharmacol 2010; 10:1235-41. [PMID: 20637836 DOI: 10.1016/j.intimp.2010.07.004] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2010] [Revised: 06/29/2010] [Accepted: 07/05/2010] [Indexed: 12/17/2022]
Abstract
Monoammonium glycyrrhizinate (MAG) was the aglycone of glycyrrhizin derived from licorice. In this study, the anti-inflammatory effects of MAG on lipopolysaccharide (LPS)-induced acute lung injury (ALI) in mice and the possible mechanisms involved in this protection were investigated. Pretreatment with MAG prior to the administration of intratracheal LPS significantly induced a decrease in lung wet weight/dry weight ratio, in total leukocyte number and neutrophil percent in the BALF, and in myeloperoxidase (MPO) activity of lung in dose-dependent manners. At the same time, pretreatment with MAG also significantly improved the super oxide dismutase (SOD) activity and induced the malondialdehyde (MDA) content in the bronchoalveolar lavage fluid (BALF). Importantly, pretreatment with MAG prevented an increase in cyclic adenosine monophosphate-phosphodiesterase (cAMP-PDE) activity of lung in a dose-dependent manner. In addition, it can up-regulate the interleukin-10 (IL-10) level and down-regulate the tumor neurosis factor-α (TNF-α) level in the lung tissue of ALI mice. These results showed that anti-inflammatory effects of MAG against the LPS-induced ALI may be due to its ability of primary inhibition of cAMP-PDE activity, oxidative stress and its regulation of cytokine effects. Thus the results support that use of MAG is beneficial in the treatment of ALI and ARDS.
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Affiliation(s)
- Jian-Rong Shi
- Zhejiang Key Laboratory for Diagnosis and Therapy of National Disease, Department of Laboratory, Children's Hospital, School of Medicine, Zhejiang University, Hangzhou 310003, China
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Tang HF, Lu JJ, Tang JF, Zheng X, Liang YQ, Wang XF, Wang YJ, Mao LG, Chen JQ. Action of a Novel PDE4 inhibitor ZL-n-91 on lipopolysaccharide-induced acute lung injury. Int Immunopharmacol 2010; 10:406-11. [DOI: 10.1016/j.intimp.2010.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2009] [Revised: 01/03/2010] [Accepted: 01/04/2010] [Indexed: 10/20/2022]
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Zheng YY, Lan YP, Tang HF, Zhu SM. Propofol pretreatment attenuates aquaporin-4 over-expression and alleviates cerebral edema after transient focal brain ischemia reperfusion in rats. Anesth Analg 2008; 107:2009-16. [PMID: 19020152 DOI: 10.1213/ane.0b013e318187c313] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cerebral edema is a major threat for stroke victims. Most studies have focused on the neuroprotective activities of propofol, addressing infarct volume rather than cerebral edema. Aquaporin-4 (AQP4) plays an important role in maintaining brain water homeostasis under various neurological insults. We explored the effect of propofol pretreatment on cerebral edema in a rat model of brain ischemia reperfusion and assessed the involvement of AQP4. METHODS To induce brain ischemia reperfusion, we introduced a silicone-coated monofilament nylon suture into the origin of the middle cerebral artery, withdrawing it after 90 min. Treatment groups (n = 32), received propofol (0.1 mL x kg(-1) x min(-1)) infusion for 30 min before occlusion; the vehicle group (n = 32) and the sham-operated group (n = 28), which received the intralipid vehicle at the same time and rate. To assess cerebral infarct volume, we used 2, 3, 5-triphenyl-tetrazolium chloride staining; wet-dry weight ratio was the basis for cerebral edema estimation, and we used immunohistochemistry and Western blot to detect AQP4 expression. RESULTS The wet-dry weight ratio decreased from 86.89% +/- 0.71% in the vehicle group (n = 6) to 72.42% +/- 0.74% in the propofol group (n = 6), corresponding to an average decrease of 16%. In parallel and based on immunohistochemical semi-quantification, the propofol group exhibited remarkable attenuation of AQP4 over-expression in the ischemic border zone compared with the vehicle group: 1.28 +/- 0.03 vs 1.40 +/- 0.05, n = 7, respectively; P < 0.05. Values derived from Western blot quantification were similarly decreased in the propofol group compared to the vehicle group: 20.85% +/- 4.18% vs 31.67% +/- 3.23%, n = 4, respectively; P < 0.05. However, infarct volume and neurologic deficit in postischemic rats in the propofol group were not statistically different from values in the vehicle group. CONCLUSIONS We conclude that prestroke treatment with propofol reduces postischemic cerebral edema in rats, possibly through inhibiting AQP4 over-expression in the boundary zone of ischemia.
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Affiliation(s)
- Yue-Ying Zheng
- Department of Anesthesiology, The First Affiliated Hospital, School of Medicine, Zhejiang University, 79 Qingchun Road, 310003, HangZhou, People's Republic of China
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Tang HF, Mao LG, Jiang RA, Qian Y, Chen JQ. [Protective effect against monoammonium glycyrrhizinate on lipopolysaccharide-induced acute lung injury in mice]. Yao Xue Xue Bao 2007; 42:954-958. [PMID: 18050737] [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: 05/25/2023]
Abstract
The aim of this study is to investigate the effect of monoammonium glycyrrhizinate (MAG) on lipopolysaccharide (LPS) -induced acute lung injury (ALI) and its anti-inflammatory mechanism in mice. All male ICR mice were randomly divided into six groups: LPS group; control group; MAG 3, 10, and 30 mg x kg(-1) groups; and dexamethasone (DXM) 5 mg x kg(-1) group. Lung dry weight and wet weight percentage and permeability were detected. Neutrophil infiltration in bronchoalveolar lavage fluid (BALF) and lung tissues was detected by cell count and morphological analysis. The levels of TNF-alpha and IL-10 in lung were detected by ELISA. MPO activity was determined followed the specification. MAG induced a decrease in lung wet weight/dry weight ratio, and significantly decreased in total leucocyte number and neutrophil percentage in the BALF, and MPO activity of lung in a dose-dependent manner. Importantly, It could up-regulate the IL-10 level and down-regulate the TNF-alpha level in the lung tissue of ALI mice. These results suggested that the protective effect of MAG in mice on LPS induced ALI was associated with the regulation of TNF-alpha/IL-10 balance, and MAG maybe a potentially treatment for ALI/ARDS.
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Affiliation(s)
- Hui-Fang Tang
- Zhejiang Respiratory Drugs Research Laboratory of SFDA of China, School of Medicine, Zhejiang University, Hangzhou 310058, China
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Tang HF, Wu SL, Deng CY, Zhang WC, Kuang SJ. Bisoprolol inhibits sodium current in ventricular myocytes of rats with diastolic heart failure. Clin Exp Pharmacol Physiol 2007; 34:714-9. [PMID: 17600546 DOI: 10.1111/j.1440-1681.2007.04628.x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
1. Changes in sodium currents (I(Na)) in heart failure contribute to cardiac electrophysiological alterations and, thereby, to ventricular arrhythmias. Bisoprolol has anti-arrhythmic effects, but its direct effect on I(Na) in cardiac cells remains unclear. Accordingly, in the present study we investigated the effects of bisoprolol on ventricular I(Na) in diastolic heart failure (DHF) and normal rats. 2. The DHF model was produced by abdominal aortic coarctation for 4 weeks and single ventricular myocytes were isolated by enzymatic dissociation. The electrophysiological actions of bisoprolol on I(Na) currents were investigated using a whole-cell patch-clamp technique. 3. The membrane capacitance of rats in the DHF group was significantly greater than that of the control group and the current-voltage curve was simultaneously shifted downward. Bisoprolol concentration-dependently decreased I(Na) in ventricular myocytes of both groups (at -45 mV), with IC(50) values of 19.53 +/- 0.06 and 40.78 +/- 0.03 micromol/L in the control and DHF groups, respectively. 4. In both groups, the current-voltage curves were shifted upwards, whereas activation potentials, peak currents and reversal potentials showed no significant changes. At -45 mV, the descent ratio of current densities in the DHF group was lower than that of the control group. In both groups, inactivation curves were shifted to more negative potentials, but activation curves and recovery curves were not altered. Changes in the half-inactivation voltage, V(0.5), and the slope of the inactivation curve, S, were similar for both groups. 5. In conclusion, bisoprolol concentration-dependently decreases I(Na) in ventricular myocytes of DHF and normal rats, which could be responsible, at least in part, for its anti-arrhythmic effects.
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MESH Headings
- Animals
- Anti-Arrhythmia Agents/pharmacology
- Anti-Arrhythmia Agents/therapeutic use
- Aorta, Abdominal/surgery
- Aortic Coarctation/complications
- Aortic Coarctation/metabolism
- Aortic Coarctation/physiopathology
- Arrhythmias, Cardiac/etiology
- Arrhythmias, Cardiac/metabolism
- Arrhythmias, Cardiac/physiopathology
- Arrhythmias, Cardiac/prevention & control
- Bisoprolol/pharmacology
- Bisoprolol/therapeutic use
- Blood Pressure/drug effects
- Diastole
- Disease Models, Animal
- Dose-Response Relationship, Drug
- Heart Failure/complications
- Heart Failure/drug therapy
- Heart Failure/etiology
- Heart Failure/metabolism
- Heart Failure/physiopathology
- Heart Rate/drug effects
- Heart Ventricles/drug effects
- Heart Ventricles/metabolism
- Male
- Membrane Potentials/drug effects
- Myocardial Contraction/drug effects
- Myocytes, Cardiac/drug effects
- Myocytes, Cardiac/metabolism
- Patch-Clamp Techniques
- Rats
- Rats, Sprague-Dawley
- Sodium/metabolism
- Ventricular Function, Left/drug effects
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Affiliation(s)
- Hui-Fang Tang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangzhou, China
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Sun JG, Deng YM, Wu X, Tang HF, Deng JF, Chen JQ, Yang SY, Xie QM. Inhibition of phosphodiesterase activity, airway inflammation and hyperresponsiveness by PDE4 inhibitor and glucocorticoid in a murine model of allergic asthma. Life Sci 2006; 79:2077-85. [PMID: 16875702 DOI: 10.1016/j.lfs.2006.07.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2005] [Revised: 06/28/2006] [Accepted: 07/03/2006] [Indexed: 11/16/2022]
Abstract
Phosphodiesterase 4 (PDE4) isozyme plays important roles in inflammatory and immunomodulatory cells. In this study, piclamilast, a selective PDE4 inhibitor, was used to investigate the role of PDE4 in respiratory function and inflammation in a murine asthma model. Sensitized mice were challenged with aerosolized ovalbumin for 7 days, piclamilast (1, 3 and 10 mg/kg) and dexamethasone (2 mg/kg) were orally administered once daily during the period of challenge. Twenty-four hours after the last challenge, airway hyperresponsiveness to methacholine was determined by whole-body plethysmography, airway inflammation and mucus secretion by histomorphometry, pulmonary cAMP-PDE activity by HPLC, cytokine levels in bronchoalveolar lavage fluid and their mRNA expression in lung by ELISA and RT-PCR, respectively. In control mice, significant induction of cAMP-PDE activity was parallel to the increases of hyperresponsiveness, inflammatory cells, cytokine levels, mRNA expression as well as goblet cell hyperplasia. However, piclamilast dose-dependently and significantly improved airway resistance and dynamic compliance, and the maximal effect was similar to that of dexamethasone. Piclamilast treatment dose-dependently and significantly prevented the increase in inflammatory cell number and goblet cell hyperplasia, as well as production of cytokines, including eotaxin, TNFalpha and IL-4. Piclamilast exerted a weaker inhibitory effect than dexamethasone on eosinophils and neutrophils, had no effect on lymphocyte accumulation. Moreover, piclamilast inhibited up-regulation of cAMP-PDE activity and cytokine mRNA expression; the maximal inhibition of cAMP-PDE was greater than that exerted by dexamethasone, and was similar to dexamethasone on cytokine mRNA expression. This study suggests that inhibition of PDE4 by piclamilast robustly improves the pulmonary function, airway inflammation and goblet cell hyperplasia in murine allergenic asthma.
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Affiliation(s)
- Jian-Gang Sun
- Zhejiang Respiratory Drugs Research Laboratory of State Food and Drug Administration, Medical Science College of Zhejiang University, Hangzhou 310031, PR China
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34
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Tang HF, Chen JQ, Xie QM, Zheng XY, Zhu YL, Adcock I, Wang X. The role of PDE4 in pulmonary inflammation and goblet cell hyperplasia in allergic rats. Biochim Biophys Acta Mol Basis Dis 2006; 1762:525-32. [PMID: 16469485 DOI: 10.1016/j.bbadis.2005.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [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: 12/01/2005] [Accepted: 12/16/2005] [Indexed: 11/18/2022]
Abstract
Phosphodiesterase 4 (PDE4) has been suggested to a critical factor in the pathogenesis of inflammation by metabolizing cAMP in human leukocytes, endothelium and epithelium. The present study aimed at evaluating the PDE4 activity and expression, the relationship between the inflammation and cAMP- activity in the lungs, and potential interventions of PDE inhibitors and antiinflammatory drugs in the reduction of lung inflammation and goblet cell hyperplasia in allergic rats. The total leukocyte number and eosinophil number in bronchoalveolar lavegar fluid and infiltration of inflammatory cells in the perivascular and peribronchial spaces, structure changes and goblet cell hyperplasia in the OVA-sensitized and challenged allergic rats. A significant correlation was observed between the increases in cAMP-PDE activity and inflammation in the lung. Those OVA-induced changes were prevented by pretreatment with PDE inhibitor in a dose-related patterns and with glucocorticosteriod. We found an increase in the proportion of PDE4 and PDE4 gene expression, while a decrease in the proportion of PDE3 in the lung of the allergic rats. Incubation with different PDE inhibitors down-regulated OVA-induced cAMP hydrolysis. Our data suggest that PDE4C may play an important role in the airway inflammation, remodeling and goblet cell hyperplasia after repeated challenge of sensitized rats.
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Affiliation(s)
- Hui-Fang Tang
- Zhejiang Respiratory Drugs Research Laboratory of State Foods and Drugs Administration of China, Medical School of Zhejiang University, Hangzhou 310031, China
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35
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Abstract
Inhibitors of phosphodiesterase-4 (PDE4) are efficacious for allergic asthma in animal models and have shown some efficacy in human asthma. Regulation of PDE4 in allergy and asthma has been widely investigated in blood leukocytes, with discrepant results. This study investigated PDE4 regulation in the lung in a rat model of allergic asthma. Ovalbumin sensitization and challenge significantly increased pulmonary resistance and lung interleukin (IL)-4 production. The increases in pulmonary resistance and IL-4 production were both suppressed by the PDE4-selective inhibitor rolipram or the corticosteroid drug dexamethasone. Furthermore, cAMP-PDE enzyme activity in the lung was also significantly increased by the sensitization and challenge. mRNA analysis confirmed that PDE4 gene expression was increased in the lung of the allergic rats. A highly significant correlation was observed between the increases in PDE activity and IL-4 production. Our data suggest, for the first time, that PDE4 may be upregulated in the lung and play a role in the pathogenesis of allergic asthma.
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Affiliation(s)
- Hui-Fang Tang
- Schering-Plough Research Institute, 2015 Galloping Hill Road, K-15-1600, Kenilworth, NJ 07033, USA
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36
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Yao HW, Xie QM, Chen JQ, Deng YM, Tang HF. RETRACTED: TGF-β1 induces alveolar epithelial to mesenchymal transition in vitro. Life Sci 2004; 76:29-37. [PMID: 15501477 DOI: 10.1016/j.lfs.2004.06.019] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.8] [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: 01/09/2004] [Accepted: 06/04/2004] [Indexed: 11/15/2022]
Abstract
The aim of this study was to investigate whether transforming growth factor-beta1 (TGF-beta1) could induce alveolar epithelial to mesenchymal transition (EMT) in vitro. Alveolar epithelial cells (AECs) from SD rats were isolated by elastase cell dispersion and IgG panning. Expression of alpha-smooth muscle actin (alpha-SMA) was assayed using Western blotting and immunostaining analysis. Morphological changes, the markers of epithelial cell (E-cadherin), and stress fiber by actin reorganization were detected by an indirect immunostaining. The contents of collagen I were determined by spectrophotometry. The levels of endogenous TGF-beta1 were measured with ELISA. Incubation of AECs with TGF-beta1 (0.1 approximately 10 ng/mL) induced abundant expression of alpha-SMA protein, and alpha-SMA expression in AECs reached a plateau when TGF-beta1 was > 3 ng/mL. Furthermore, we found that TGF-beta1 (3 ng/mL) exposure of AECs induced an authentic EMT characterized by abundant expression of alpha-smooth muscle actin, transformation of myofibroblastic morphology, increased formation of stress fiber by actin reorganization, and loss of epithelial marker E-cadherin. Meanwhile, significant increase in the levels of collagen I from 32.0 +/- 6.6 mg/g in control to 98 +/- 10.8 mg/g in TGF-beta1-treated group was found over a 72 h incubation period. Moreover, following stimulated by TGF-beta1 (3 ng/mL), a marked and time-dependent increase in endogenous TGF-beta1 released from AECs was observed. At time points 72 h, TGF-beta1 release mounted to 3451 pg/ml, which was much enough to induce EMT in vitro. These results demonstrated that AECs, under stimulation of TGF-beta1, underwent a conversion process into myofibroblasts in vitro.
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Affiliation(s)
- Hong-Wei Yao
- Zhejiang Respiratory Drugs Research Laboratory of State Food Drugs Administration of China, School of Medicine, Zhejiang University, Hangzhou 310031, China.
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37
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Xie QM, Tang HF, Chen JQ, Bian RL. Pharmacological actions of tetrandrine in inflammatory pulmonary diseases. Acta Pharmacol Sin 2002; 23:1107-13. [PMID: 12466048] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2023] Open
Abstract
Tetrandrine is a principle from a traditional Chinese medicine of the root of Stephania tetrandra S Moore approved by State Drugs Administration of China as a new drug for the treatment of silicosis. Except for its antiinflammatory, antifibrogenetic, immunomodulating effects and antioxidant effects, tetrandrine presents antiallergic effects, inhibitory effects on pulmonary vessels and airway smooth muscle contraction, and platelet aggregation via its nonspecific calcium channel antagonism that suggested its potential in the treatment of asthma, pulmonary hypertension and chronic obstructive pulmonary disease (COPD). In general, the clinical results to date with tetrandrine in asthma and pulmonary hypertension have been exciting. The last 10 years have witnessed great leaps forward in our understanding of the molecular biology and biochemistry of chronic inflammatory diseases as well as the treatment drugs, which may create opportunities for future therapeutic innovation, development of tetrandrine derivatives or new extracts from other Chinese medicine. The current article briefly reviews the basic and clinical pharmacology of tetrandrine as well as the in vitro and in vivo data supporting the view that tetrandrine is as a novel drug for the treatment of silicosis, asthma and pulmonary hypertension.
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Affiliation(s)
- Qiang-Min Xie
- Zhejiang Respiratory Drugs Research Laboratory of State Drugs Administration of China, Medical School of Zhejiang University, Hangzhou 310031, China.
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38
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Zhao YP, Tang HF, Jiang YP, Wang ZZ, Yi YH, Lei QY. [Triterpenoid saponins from Eclipta prostrata L]. Yao Xue Xue Bao 2001; 36:660-3. [PMID: 12580102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To study the triterpenoid saponins in the Chinese traditional medicine Eclipta prostrata L.. METHODS Column chromatography with silica gel and HPLC were employed for the isolation and purification. The molecular structures were determined on the basis of spectral analysis (IR, MS, 1HNMR, 13CNMR, HMQC and HMBC). RESULTS Two new triterpenoid saponins, named eclalbasaponins XI (4) and XII (5), were obtained and their structures were elucidated as 3-O-[beta-D-glucopyranosyl(1-->2)-beta-D-glucopyranosyl]-16 alpha-ethoxy-olean-12-ene-28-oic acid-28-O-beta-D-glucopyranoside and 3-O-[(2-O-sulfuryl-beta-D-glucopyranosyl) (1-->2)-beta-D-glucopyranosyl]-echinocystic acid-28-O-beta-D-glucopyranoside, respectively, along with three known saponins, eclalbasaponins II (1), I (2) and III (3). CONCLUSION Compounds 4 and 5 are new compounds, 1 and 5 induced morphological deformation of Pyricularia oryzae mycelia.
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Affiliation(s)
- Y P Zhao
- Department of Pharmacy, Fourth Military Medical University, Xi'an 710032, China
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39
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Tang HF, Chen FS. [Treatment of dentigerous cyst with second operation and orthodontic traction]. Shanghai Kou Qiang Yi Xue 2001; 10:191. [PMID: 14994062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- H F Tang
- Department of Dentistry, Shanghai Fifth People's Hospital, Shanghai 20240, China
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40
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Abstract
A novel triterpene saponin (1) was isolated from an ethanol extract of the root bark of Aralia dasyphylla. Its structure was elucidated as 3-O-[beta-D-glucopyranosyl (1-->3)-beta-D-galactopyranosyl(1-->2)]-beta-D-glucuronopyranosyl- ole anolic acid-28-O-beta-D-glucopyranoside, according to spectral and chemical evidence. Compound 1 showed significant cytotoxic activity against KB and Hela-S(3) cells.
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Affiliation(s)
- K Xiao
- School of Pharmacy, Second Military Medical University, Shanghai 200433, People's Republic of China.
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41
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Wu CY, Tang HF. [Maxillofacial infections caused by impacted wisdom teeth in the elder]. Shanghai Kou Qiang Yi Xue 1999; 8:114-5. [PMID: 15048291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- C Y Wu
- Department of Dentistry, Fifths People's Hospital of Shanghai, Shanghai 200240, China
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42
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Tang HF, Yi YH, Wang ZZ, Hu WJ, Li YQ. [Studies on the triterpenoid saponins of the root bark of Aralia taibaiensis]. Yao Xue Xue Bao 1998; 31:517-23. [PMID: 9772693] [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: 02/09/2023]
Abstract
Four triterpenoid saponins were isolated from the root bark of Aralia taibaiensis Z. Z. Wang et H. C. Zheng. On the basis of their chemical properties and spectral data, they were identified as oleanolic acid-3-O-[beta-D-xylopyranosyl(1-->2)] [beta-D-glucopyranosyl(1-->3)]-beta-D-glucuronopyranoside (1), tarasaponin V (2), 3-O-¿beta-D-xylopyranosyl(1-->2)[beta-D-glucopyranosyl (1-->3)]-6'-O-ethyl-beta-D-glucuronopyranosyl¿-oleanolic acid-28-O-beta-D-glucopyranoside (3) and 3-O-¿beta-D-xylopyranosyl(1-->2) [beta-D-glucopyranosyl(1-->3)] -6'-O-butyl-beta-D-glucuronopyranosyl¿-oleanolic acid-28-O-beta-D-glucopyranoside (4). Compound 1 is a new natural product named taibaienoside VI. 2 was isolated from the title plant for the first time. 3 and 4 are new compounds and named taibaienoside VII and taibaienoside VIII, respectively.
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Affiliation(s)
- H F Tang
- Department of Phytochemistry, School of Pharmacy, Second Military Medical University, Shanghai
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43
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Tang HF, Yi YH, Wang ZZ, Jiang YP, Li YQ. [Oleanolic acid saponins from the root bark of Aralia taibaiensis]. Yao Xue Xue Bao 1997; 32:685-90. [PMID: 11596294] [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: 02/21/2023]
Abstract
Five oleanolic acid saponins were isolated from the root bark of Aralia taibaiensis Z.Z. Wang et H.C. Zheng. By spectroscopic and chemical methods, they were identified as araloside A (1), 3-O-[alpha-L-arabinofuranosyl(1-->4)-6'-O-n-butyl-beta-D- glucuronopyranosyl]-oleanolic acid-28-O-beta-D-glucopyranoside (2), 3-O-[alpha-L-arabinofuranosyl(1-->4)-6'-O-ethyl-beta-D- glucuronopyra-nosyl]-oleanolic acid-28-O-beta-D-glucopyranoside (3), stipuleanoside R2(4) and 3-O-(beta-D-glucopyranosyl(1-->3) [alpha-L-arabinofuranosyl(1-->4)]-6'-O-ethyl-beta-D- glucuronopyranosyl)-oleanolic acid-28-O-beta-D-glucopyranoside (5). Saponin 1 and 4 were isolated from the title plant for the first time. 2, 3 and 5 are new compounds and named taibaienoside I, taibaienoside II and taibaienoside III, respectively.
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Affiliation(s)
- H F Tang
- Department of Pharmacy, Xijing Hospital, Fourth Military Medical University, Xian 710032
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44
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Li YQ, Yi YH, Tang HF, Xiao K. [Studies on the structure of isoastilbin]. Yao Xue Xue Bao 1996; 31:761-3. [PMID: 9863244] [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: 04/11/2023]
Abstract
A new compound was isolated from Smilax glabra Roxb., named isoastilbin. It was identified as 5, 7, 3', 5'-tetrahydroxyl-flavanonol-3-O-alpha-L-rhamnopyranoside by means of chemical and spectrometric analysis (UV, IR, 1H-NMR, 13C-NMR, 2DNMR and FAB-MS).
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Affiliation(s)
- Y Q Li
- School of Pharmacy, Second Military Medical University, Shanghai
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45
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Ma YZ, Tang HF, Chai BF, Yeh YC, Jiang LP, Zhou SB, Chen WY. The treatment of primary vertebral tumors by radical resection and prosthetic vertebral replacement. Clin Orthop Relat Res 1987:78-90. [PMID: 3802655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The basic principles for the treatment of primary vertebral tumors include radical resection of the tumor, insertion of a prosthetic vertebral body, and bone grafting within and around the prosthetic vertebral body. Since 1970, the authors have treated 12 cases with this procedure. In order to improve the vertebral prosthesis, 94 dried adult vertebral column specimens were studied. The anterior cortex of each vertebral body was thicker than the posterior cortex. The thickness of the anterior cortex of the dorsolumbar vertebral bodies progressively increases from the proximal to caudal vertebra. The lower lumbar vertebrae are therefore almost twice as thick as the upper dorsal vertebrae. The cortices of the vertebral bodies, especially the anterior cortex, serve as a strut against the pressure of the prosthesis. Four types of prostheses were used. The Type 1 prosthesis failed to take into account the anatomic features of the dorsolumbar vertebral bodies in cross section. Types 2, 3, and 4 are modified versions with specific indications for their use.
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Tang HF. [Mechanical massaging bed in the treatment of lumbo-intervertebral disc protrusion]. Zhonghua Yi Xue Za Zhi 1983; 63:238-40. [PMID: 6413023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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Ma YZ, Tang HF, Chai BF, Ye YQ. Radical resection of dorsolumbar vertebra and prosthetic replacement in giant cell tumor. Chin Med J (Engl) 1982; 95:537-42. [PMID: 6816525] [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: 01/22/2023] Open
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Soin K, Krishnamoorthy S, Tang HF. Wound sepsis following internal fixation of long bone fractures with metal implants. Singapore Med J 1972; 13:24-8. [PMID: 5031951] [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: 01/13/2023]
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