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Chen JX, Song BB, Gao SQ, Pan MM, Huang HN, Wang DB, Peng HY, Wang YZ. Correction to "Dynamics of the Deformable Fluid Interface Interacting with an Approaching Solid under the Electrostatic Field". Langmuir 2024; 40:9831-9832. [PMID: 38652892 DOI: 10.1021/acs.langmuir.4c01187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
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Chen JX, Song BB, Gao SQ, Pan MM, Huang HN, Wang DB, Peng HY, Wang YZ. Dynamics of the Deformable Fluid Interface Interacting with an Approaching Solid under the Electrostatic Field. Langmuir 2024; 40:6402-6412. [PMID: 38489303 DOI: 10.1021/acs.langmuir.3c03998] [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] [Subscribe] [Scholar Register] [Indexed: 03/17/2024]
Abstract
A theoretical model was developed to describe the dynamics of a deformable fluid interface interacting with an approaching solid without contact by both the attractive electrostatic and van der Waals (i.e., vdW) interaction, analogous to the situation in the experiments by electric force microscopy (i.e., EFM) or electric-surface force apparatus (i.e., E-SFA) involved in the soft fluid interface. On the basis of this model, a numerical study of the deformation of the fluid interface, the force-vs-separation behavior, and the critical limiting conditions of contact has systematically been carried out. Our results show that the surface pressure induced by the electrostatic interaction plays a more prominent role in the deformation of the fluid interface than the vdW interaction does, and there exists a principal length scale associated with the relative strength of the electrostatic field to the surface tension, affecting the fluid interface shape under the electrostatic field. It was also shown that both the force-distance curves and the corresponding curves of fluid interface deformation peak versus distance for various electrostatic fields satisfy the universal scaling power law. Moreover, an analytical solution to the Euler-Lagrange differential equation governing the deformation of the fluid interface under the external electric field is obtained, and two extended formulas for explicitly describing the principal length scales that respectively characterize the lateral and longitudinal deformations of the fluid interface were determined.
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Affiliation(s)
- J X Chen
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - B B Song
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
| | - S Q Gao
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
| | - M M Pan
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - H N Huang
- Department of Mathematics and Statistics, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - D B Wang
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - H Y Peng
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
| | - Y Z Wang
- College of Physics and Electronic Engineering, Hainan Normal University, Hainan 571158, China
- Haikou Key Laboratory of Solar Energy and Photovoltaic Application Technology, Hainan 571158, China
- The Innovation Platform for Academicians of Hainan Province, Haikou 571158, China
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Peng HY, Zhang G, Sun R, Xu YJ, Ge JF. ESIPT-based fluorescent enhanced probes prompted by methylated β-cyclodextrin for the detection of thiophenols. Spectrochim Acta A Mol Biomol Spectrosc 2023; 302:123012. [PMID: 37329832 DOI: 10.1016/j.saa.2023.123012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/24/2023] [Accepted: 06/10/2023] [Indexed: 06/19/2023]
Abstract
Thiophenol and its derivatives are compounds with high toxicity to organisms and environmental pollution, so it is necessary to detect the level of thiophenols in the environment and biological samples. The probes 1a-b were obtained by introducing the 2,4-dinitrophenyl ether group into diethylcoumarin-salicylaldehyde based compounds. And they can form host-guest compounds with methylated β-cyclodextrin (M-β-CD), the association constants of inclusion complexes are 49.2 M-1, 125 M-1 respectively. The fluorescence intensities of probes 1a-b at 600 nm (1a) and 670 nm (1b) increased significantly in thiophenols detection. Meanwhile, with the addition of M-β-CD, the hydrophobic cavity of M-β-CD significantly increased the fluorescence intensity of probes 1a-b, thus the detection limits of probes 1a-b to thiophenols were reduced from 410 nM, 365 nM to 62 nM, 33 nM respectively. Whereas, the good selectivity and short response time of probes 1a-b towards thiophenols was not affected in the presence of M-β-CD. Moreover, probes 1a-b were used for further water sample detection and HeLa cell imaging experiments due to their good response to thiophenols and the results suggested that probes 1a-b had the potential to detect the content of thiophenols in water samples and living cells.
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Affiliation(s)
- Hai-Yan Peng
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Gang Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China.
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China; Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China.
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Zhang ZH, Yu Q, Zhang G, Peng HY, Sun R, Xu YJ, Ge JF. Methylated Chromenoquinoline as a Novel Nucleus Fluorescent Probe for Nucleic Acid Imaging. J Fluoresc 2022; 33:923-932. [PMID: 36527543 DOI: 10.1007/s10895-022-03129-4] [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] [Received: 11/21/2022] [Accepted: 12/12/2022] [Indexed: 12/23/2022]
Abstract
Two chromenoquinoline-based fluorescent probes 1a-b have been synthesized and investigated. Photofading behaviors of compounds 1a-b showed that at least 89% absorption remained after 6 h irradiating, meanwhile, many of ions and amino acids had negligible impacts on their fluorescence intensity, which meant they had excellent photostability and selectivity. Probes 1a-b exhibited strong absorption and emission in organic solvents with large fluorescence quantum yields, even in water probe 1a still had a relatively large fluorescence quantum yield (20%). Combined with DFT calculation, the influence of alkylation on optical properties of 1b was elucidated. In addition, the fluorescence intensity of probe 1b with red emission enhanced by 5.4-fold and 5.3-fold after DNA and RNA added, and the fluorescence quantum yield increased from 3% to 17% and 14%, respectively, but the neutral molecule 1a had no response to nucleic acid. Furthermore, confocal microscopy imaging of probes 1a-b showed that 1a targeted lipid droplets while the methylated probe 1b to nucleus in living HeLa cells. The results indicated that the subcellular targeting zone could be changed by alkylation of nitrogen atom on chromenoquinoline-based conveniently, which provided a new idea for designing and synthesizing new subcellular labeled probes.
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Affiliation(s)
- Zhi-Hao Zhang
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Qing Yu
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Gang Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, China
| | - Hai-Yan Peng
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection, Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215123, Suzhou, China
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, 215123, Suzhou, China.
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Peng HY, Zhang G, Xu YJ, Sun R, Ge JF. Near-infrared fluorescent probes based on a quinoxaline skeleton for imaging nucleic acids in mitochondria. Org Biomol Chem 2022; 20:5558-5565. [PMID: 35791887 DOI: 10.1039/d2ob01095j] [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] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this paper, two cationic probes 1a and 1b and a neutral dye 1c were successfully designed and synthesized according to the Knoevenagel condensation reaction, which combines the good optical properties of hemocyanine and the biocompatibility of nitrogen-containing heterocyclic rings based on a quinoxaline skeleton. Probes 1a and 1b showed an OFF-ON fluorescence response to nucleic acids with excellent selectivity. Specifically, the fluorescence intensity of probe 1a was enhanced by 18 and 133 times, respectively, along with the increase of DNA or RNA concentrations (0-600 μg mL-1). Furthermore, a good linear correlation between the fluorescence intensity of probes 1a and 1b and the concentrations of DNA or RNA (0-350 μg mL-1) was obtained. In particular, the maximum emission wavelengths of probes 1a and 1b reached the near-infrared region (660-664 nm) when DNA or RNA was detected, which might reduce the light damage to cells and facilitate cell experiments. Fluorescence imaging revealed that all three dyes could be localized in the mitochondria of HeLa cells. The difference was that probes 1a and 1b could stain the nucleic acid in the mitochondria, while dye 1c was only a neutral mitochondrial biomarker. The results indicated that probes 1a and 1b are promising in the development of low toxicity mitochondrial nucleic acid probes and are expected to be used in monitoring the normal state of mitochondrial nucleic acids for living cells, which will help improve the situation in that currently reported studies of fluorescent probes are mainly focused on the nucleic acids in the nucleus, but less so on DNA in the mitochondria.
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Affiliation(s)
- Hai-Yan Peng
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China.
| | - Gang Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China.
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China.
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Su B, Yao C, Zhao QX, Cai WP, Wang M, Lu HZ, Mu TT, Chen YY, Liu L, Wang H, He Y, Zheng YH, Li LH, Chen JF, Yu JH, Zhu B, Zhao M, Sun YT, Lun WH, Zhang YH, Wang H, Xia W, Sun LJ, Dai LL, Jiang TY, Wang MX, Zheng QS, Peng HY, Wang Y, Hu M, Liu X, Lu RJ, Hu JH, Sun CC, Xing H, Shao YM, Xie D, Zhang T, Zhang FJ, Wu H. Long-acting HIV fusion inhibitor albuvirtide combined with ritonavir-boosted lopinavir for HIV-1-infected patients after failing the first-line antiretroviral therapy: 48-week randomized, controlled, phase 3 non-inferiority TALENT study. J Infect 2022; 85:334-363. [PMID: 35659547 DOI: 10.1016/j.jinf.2022.05.034] [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] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 05/29/2022] [Indexed: 11/27/2022]
Affiliation(s)
- Bin Su
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Cheng Yao
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Qing-Xia Zhao
- Department of Infectious Diseases, Infectious Disease Hospital of Henan Province, Zhengzhou, Henan 450061, China
| | - Wei-Ping Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Min Wang
- Institute of HIV/AIDS, the First Hospital of Changsha, Changsha, Hunan 410005, China
| | - Hong-Zhou Lu
- Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Ting-Ting Mu
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Yuan-Yuan Chen
- Department of Infectious Diseases, Infectious Disease Hospital of Henan Province, Zhengzhou, Henan 450061, China
| | - Li Liu
- Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Hui Wang
- Department of Infectious Diseases, National Clinical Center for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong 518112, China
| | - Yun He
- Department of Infectious Diseases, National Clinical Center for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong 518112, China
| | - Yu-Huang Zheng
- Department of Infectious Diseases, the Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Ling-Hua Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Jin-Feng Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Jian-Hua Yu
- Department of Infectious Diseases, Xixi Hospital of Hangzhou, Hangzhou, Zhejiang 310023, China
| | - Biao Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, the First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Min Zhao
- National Clinical Research Center for Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Yong-Tao Sun
- Department of Infectious Diseases, Tangdu Hospital, the Fourth Military Medical University, Xi'an Shaanxi 710038, China
| | - Wen-Hui Lun
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Yi-Hang Zhang
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Hu Wang
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Wei Xia
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Li-Jun Sun
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Li-Li Dai
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Tai-Yi Jiang
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Mei-Xia Wang
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Qing-Shan Zheng
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hai-Yan Peng
- Beijing Co-CRO Medical Development Co., Ltd., Beijing 100711, China
| | - Yao Wang
- Beijing Co-CRO Medical Development Co., Ltd., Beijing 100711, China
| | - Min Hu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Xia Liu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Rong-Jian Lu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Jian-Hua Hu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Cheng-Chen Sun
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Hui Xing
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yi-Ming Shao
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Dong Xie
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China.
| | - Tong Zhang
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
| | - Fu-Jie Zhang
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China.
| | - Hao Wu
- Clinical and Research Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China.
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Peng HY, Lei ST, Hou SH, Weng LC, Yuan Q, Li MQ, Zhao D. PrPC Promotes Endometriosis Progression by Reprogramming Cholesterol Metabolism and Estrogen Biosynthesis of Endometrial Stromal Cells through PPARα Pathway. Int J Biol Sci 2022; 18:1755-1772. [PMID: 35280685 PMCID: PMC8898366 DOI: 10.7150/ijbs.68015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Accepted: 01/16/2022] [Indexed: 11/05/2022] Open
Abstract
Endometriosis (EMs) is characterized as an estrogen-dependent disease. Whereas, the underlying mechanism for activated estrogen biosynthesis in EMs lesions is largely unknown. We analyzed cholesterol metabolism and estrogen biosynthesis condition of EMs lesions by biological information analysis of GEO datasets, and further verified both in vitro and in vivo by constructing EMs models with uterus fragments from donors of PRNP knockout mouse (Prnp-/-, KO119), Octapeptide repeat region of PRNP knockout mouse (KO120) and PRNP transgenic mouse (Tg20). We found that transcriptome of cholesterol metabolism and estrogen-converting enzymes were disturbed in EMs patients, and cellular cholesterol concentration and local estradiol level were substantially increased in EMs lesions, as well as the high level of prion (PrPC, encoded by PRNP). Notably, 17-β estradiol stimulation significantly up-regulated PrPC expression in endometrial stromal cells (ESC) and PrPC promoted the proliferative, migratory and invasive abilities of ESC, and was further verified to accelerate EMs progression in mouse models. More importantly, PrPC promoted cholesterol accumulation and activated estrogen biosynthesis of ESC in a PPARα pathway-dependent manner. Taken together, this study suggests that PrPC-cholesterol metabolism/estrogen biosynthesis contributes to the progression of EMs by negatively regulating PPARα pathway, and could be potential therapeutic targets for EMs intervention.
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Peng HY, Zhang G, Sun R, Xu YJ, Ge JF. Fluorescent probes based on acridine derivatives and their application in dynamic monitoring of cell polarity variation. Analyst 2022; 147:5231-5238. [DOI: 10.1039/d2an01449a] [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] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dynamic monitoring of the polarity of lipid droplets or lysosomes in HeLa cells.
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Affiliation(s)
- Hai-Yan Peng
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Gang Zhang
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Ru Sun
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
| | - Yu-Jie Xu
- State Key Laboratory of Radiation Medicine and Protection, School of Radiation Medicine and Protection and Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, Suzhou 215123, China
| | - Jian-Feng Ge
- College of Chemistry, Chemical Engineering and Material Science, Soochow University, 199 Ren'Ai Road, Suzhou 215123, China
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Lei ST, Li MQ, Cao YL, Hou SH, Peng HY, Zhao D, Sun J. Follistatin-like I promotes endometriosis by increasing proinflammatory factors and promoting angiogenesis. Reproduction 2021; 163:57-68. [PMID: 34866594 DOI: 10.1530/rep-21-0094] [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] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 12/03/2021] [Indexed: 11/08/2022]
Abstract
Endometriosis (EMS) is a chronic benign inflammatory disease characterized by the growth of endometrial-like tissue in aberrant locations outside of the uterine cavity. Angiogenesis and abnormal immune responses are the fundamental requirements of endometriotic lesion survival in the peritoneal cavity. Follistatin-like I (FSTL1) is a secreted glycoprotein that exhibits varied expression levels in cardiovascular disease, cancer and arthritis. However, the role of FSTL1 in the development of EMS remains to be fully elucidated. Results of the present study demonstrated that the expression of FSTL1 was significantly increased in ectopic endometrial stromal cells (ESCs) and peritoneal fluid from patients with EMS, compared to the control group. Both conditions of hypoxia and estrogen treatment induced human ESCs to produce increased levels of FSTL1 and disco-interacting protein 2 homolog A (DIP2A). Furthermore, the expression levels of DIP2A, IL8 and IL1β were increased in FSTL1 overexpressed HESCs. Additionally, FSTL1 treatment increased the proliferation of HUVECs in a dose-dependent manner in vitro and markedly increased the tube formation of HUVECs. Moreover, treatment with FSTL1 facilitated M1 polarization of macrophages, increased the secretion of proinflammatory factors and inhibited the expression of scavenger receptor CD36. Results of the present study suggested that the elevated expression of FSTL1 may play a key role in accelerating the development of EMS via enhancing the secretion of proinflammatory factors and promoting angiogenesis.
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Affiliation(s)
- Sha-Ting Lei
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.,Tongji University School of Medicine, Shanghai, People's Republic of China.,NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China.,Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China
| | - Ming-Qing Li
- NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China.,Laboratory for Reproductive Immunology, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China.,Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Hospital of Obstetrics and Gynecology, Fudan University, Shanghai, People's Republic of China
| | - Yan-Ling Cao
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Shu-Hui Hou
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.,Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Hai-Yan Peng
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.,Tongji University School of Medicine, Shanghai, People's Republic of China
| | - Dong Zhao
- Department of Obstetrics and Gynecology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, People's Republic of China
| | - Jing Sun
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China
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Guo YF, Peng HY, Zhao YJ, Lyu Y, Wang P, Lyu Y, Liu JH. [Interventional strategies and perioperative complications of chronic total coronary occlusion in combination with bifurcation lesions]. Zhonghua Yi Xue Za Zhi 2021; 101:2710-2716. [PMID: 34510878 DOI: 10.3760/cma.j.cn112137-20210406-00823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the clinical characteristics of chronic total coronary occlusion (CTO) combined with bifurcation lesions and the features of coronary intervention and perioperative complications. Methods: This study adopted retrospective cross-sectional research methods and included 673 patients who underwent interventional therapy for chronic total occlusion in Beijing Anzhen Hospital. According to whether there were side branches (diameter ≥2 mm) within 5 mm before and after the CTO occlusion segment, patients were divided into bifurcation group (337 cases) and non-bifurcation group (336 cases). The measurement data did not conform to the normal distribution and were represented as M (Q1, Q3). The clinical risk factors, coronary angiography characteristics, interventional treatment strategies and perioperative complications were compared between the two groups. Results: The patients in the bifurcation group were 60 (51, 65) years old, and 86.6% (292 cases) were male; the patients in the non-bifurcation group were 60 (52, 66) years old, and 83.0% (279 cases) were male.Coronary artery disease in all patients was mainly multivessel disease, of which three-vessel disease accounted for 59.9% (403 cases) and double-vessel disease accounted for 25.4% (171 cases).The target vessel in the bifurcation group was predominantly left anterior descending artery (62.3%, 210 cases), and the target vessel in the non-bifurcation group was more common in the right coronary artery (56%, 188 cases). The target vessel diameter was larger in the bifurcation group (2.91(2.71, 3.24) mm vs 2.80(2.55, 3.13) mm, P<0.001). Most patients used the antegrade technique (88%, 592 cases), and the use of antegrade technique in the bifurcation group (91.9%, 307 cases) was higher than that in the non-bifurcation group (84.8%, 285 cases) (P=0.012). After CTO-PCI, 72.8% (490 cases) of patients achieved successful angiography. A total of 73 patients (10.8%) had perioperative complications, and there was no statistical difference between the two groups. However, the incidence of perioperative myocardial infarction was higher in the bifurcation group (5.9%, 20 cases) than non-bifurcation group (2.7%, 9 cases) (P=0.038). Conclusions: CTO complicated with bifurcation lesions are very common in clinical practice. Most patients with CTO have multiple coronary artery disease at the same time. The target vessel is more common in the left anterior descending artery, and the diameter of the vessel is larger. It is more common to use antergrade technique, accompanied by more perioperative myocardial infarctions.
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Affiliation(s)
- Y F Guo
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - H Y Peng
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - Y J Zhao
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - Y Lyu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - P Wang
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - Y Lyu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
| | - J H Liu
- Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Diseases, Beijing 100029, China
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11
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Peng HY. HYPOXIA-HINDERED METHYLATION OF PTGIS IN ENDOMETRIAL STROMA CELLS ACCELERATES ENDOMETRIOSIS PROGRESSION BY INDUCING CD16- NK CELLS DIFFERENTIATION. Fertil Steril 2021. [DOI: 10.1016/j.fertnstert.2021.07.1125] [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: 11/16/2022]
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12
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Chen M, Zhuang YW, Wu CE, Peng HY, Qian J, Zhou JY. β-asarone suppresses HCT116 colon cancer cell proliferation and liver metastasis in part by activating the innate immune system. Oncol Lett 2021; 21:435. [PMID: 33868473 PMCID: PMC8045167 DOI: 10.3892/ol.2021.12696] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/11/2021] [Indexed: 11/18/2022] Open
Abstract
Studies have revealed that β-asarone exerts a powerful inhibitory effect on the proliferation of human cancer cells. The authors' previous study demonstrated that β-asarone could induce LoVo colon cancer cell apoptosis in vitro and in vivo, indicating its anticancer properties. The present study aimed to determine the antineoplastic effect of β-asarone in HCT116 colon cancer cells. An in vitro proliferation assay using a real time cell analyzer demonstrated that β-asarone effectively decreased HCT116 cell proliferation in a dose-dependent manner. Bioinformatics analysis revealed that differentially expressed genes following β-asarone inhibition were involved in the ‘cell cycle’, ‘cell division’, ‘cell proliferation’ and ‘apoptosis’. Subsequently, a xenograft assay evidenced the inhibitory effect of β-asarone on the growth of HCT116 tumors in vivo. Further detection of immune-associated cytokines and cells suggested that β-asarone might be involved in the antitumor immune response by stimulating granulocyte-colony stimulating factor and increasing the number of macrophage cells in the spleen. Additionally, a murine model of splenic-transplantation verified the strong suppressive role of β-asarone in colon cancer liver metastasis in vivo. Taken together, the results of the current study revealed that β-asarone decreased HCT116 colon cancer cell proliferation and liver metastasis potentially by activating the innate immune system, supporting the multi-system regulation theory and providing a basis for further mechanistic studies on colon cancer.
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Affiliation(s)
- Min Chen
- General Internal Medicine Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Yu-Wen Zhuang
- Traditional Chinese Medicine Department, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu 210002, P.R. China.,Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Cun-En Wu
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Hai-Yan Peng
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Jun Qian
- Oncology Department, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
| | - Jin-Yong Zhou
- Central Laboratory, Jiangsu Province Hospital of Chinese Medicine, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China
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13
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Su B, Yao C, Zhao QX, Cai WP, Wang M, Lu HZ, Chen YY, Liu L, Wang H, He Y, Zheng YH, Li LH, Chen JF, Yu JH, Zhu B, Zhao M, Sun YT, Lun WH, Xia W, Sun LJ, Dai LL, Jiang TY, Wang MX, Zheng QS, Peng HY, Wang Y, Lu RJ, Hu JH, Xing H, Shao YM, Xie D, Zhang T, Zhang FJ, Wu H. Efficacy and safety of the long-acting fusion inhibitor albuvirtide in antiretroviral-experienced adults with human immunodeficiency virus-1: interim analysis of the randomized, controlled, phase 3, non-inferiority TALENT study. Chin Med J (Engl) 2020; 133:2919-2927. [PMID: 33252379 PMCID: PMC7752691 DOI: 10.1097/cm9.0000000000001273] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Albuvirtide is a once-weekly injectable human immunodeficiency virus (HIV)-1 fusion inhibitor. We present interim data for a phase 3 trial assessing the safety and efficacy of albuvirtide plus lopinavir-ritonavir in HIV-1-infected adults already treated with antiretroviral drugs. METHODS We carried out a 48-week, randomized, controlled, open-label non-inferiority trial at 12 sites in China. Adults on the World Health Organization (WHO)-recommended first-line treatment for >6 months with a plasma viral load >1000 copies/mL were enrolled and randomly assigned (1:1) to receive albuvirtide (once weekly) plus ritonavir-boosted lopinavir (ABT group) or the WHO-recommended second-line treatment (NRTI group). The primary endpoint was the proportion of patients with a plasma viral load below 50 copies/mL at 48 weeks. Non-inferiority was prespecified with a margin of 12%. RESULTS At the time of analysis, week 24 data were available for 83 and 92 patients, and week 48 data were available for 46 and 50 patients in the albuvirtide and NRTI groups, respectively. At 48 weeks, 80.4% of patients in the ABT group and 66.0% of those in the NRTI group had HIV-1 RNA levels below 50 copies/mL, meeting the criteria for non-inferiority. For the per-protocol population, the superiority of albuvirtide over NRTI was demonstrated. The frequency of grade 3 to 4 adverse events was similar in the two groups; the most common adverse events were diarrhea, upper respiratory tract infections, and grade 3 to 4 increases in triglyceride concentration. Renal function was significantly more impaired at 12 weeks in the patients of the NRTI group who received tenofovir disoproxil fumarate than in those of the ABT group. CONCLUSIONS The TALENT study is the first phase 3 trial of an injectable long-acting HIV drug. This interim analysis indicates that once-weekly albuvirtide in combination with ritonavir-boosted lopinavir is well tolerated and non-inferior to the WHO-recommended second-line regimen in patients with first-line treatment failure. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02369965; https://www.clinicaltrials.gov.Chinese Clinical Trial Registry No. ChiCTR-TRC-14004276; http://www.chictr.org.cn/enindex.aspx.
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Affiliation(s)
- Bin Su
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Cheng Yao
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Qing-Xia Zhao
- Department of Infectious Diseases, Infectious Disease Hospital of Henan Province, Zhengzhou, Henan 450061, China
| | - Wei-Ping Cai
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Min Wang
- Institute of HIV/AIDS, The First Hospital of Changsha, Changsha, Hunan 410005, China
| | - Hong-Zhou Lu
- Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Yuan-Yuan Chen
- Department of Infectious Diseases, Infectious Disease Hospital of Henan Province, Zhengzhou, Henan 450061, China
| | - Li Liu
- Department of Infectious Diseases, Shanghai Public Health Clinical Center, Fudan University, Shanghai 201508, China
| | - Hui Wang
- Department of Infectious Diseases, National Clinical Center for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong 518112, China
| | - Yun He
- Department of Infectious Diseases, National Clinical Center for Infectious Diseases, Shenzhen Third People's Hospital, Shenzhen, Guangdong 518112, China
| | - Yu-Huang Zheng
- Department of Infectious Diseases, The Second Xiangya Hospital, Central South University, Changsha, Hunan 410011, China
| | - Ling-Hua Li
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Jin-Feng Chen
- Infectious Disease Center, Guangzhou Eighth People's Hospital, Guangzhou Medical University, Guangzhou, Guangdong 510060, China
| | - Jian-Hua Yu
- Department of Infectious Diseases, Xixi Hospital of Hangzhou, Hangzhou, Zhejiang 310023, China
| | - Biao Zhu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, The First Affiliated Hospital, Zhejiang University, Hangzhou, Zhejiang 310003, China
| | - Min Zhao
- National Clinical Research Center for Infectious Diseases, the Fifth Medical Center of PLA General Hospital, Beijing 100039, China
| | - Yong-Tao Sun
- Department of Infectious Diseases, Tangdu Hospital, The Fourth Military Medical University, Xi’an, Shaanxi 710038, China
| | - Wen-Hui Lun
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Wei Xia
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Li-Jun Sun
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Li-Li Dai
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Tai-Yi Jiang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Mei-Xia Wang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Qing-Shan Zheng
- Center for Drug Clinical Research, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Hai-Yan Peng
- Beijing Co-CRO Medical Development Co., Ltd., Beijing 100711, China
| | - Yao Wang
- Beijing Co-CRO Medical Development Co., Ltd., Beijing 100711, China
| | - Rong-Jian Lu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Jian-Hua Hu
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Hui Xing
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Yi-Ming Shao
- State Key Laboratory for Infectious Disease Prevention and Control, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Dong Xie
- Frontier Biotechnologies Inc., Nanjing, Jiangsu 211122, China
| | - Tong Zhang
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
| | - Fu-Jie Zhang
- Clinical and Research Center of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Hao Wu
- Center for Infectious Diseases, Beijing Youan Hospital, Capital Medical University, Beijing 100069, China
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14
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Peng HY, Li MQ, Li HP. MiR-137 Restricts the Viability and Migration of HTR-8/SVneo Cells by Downregulating FNDC5 in Gestational Diabetes Mellitus. Curr Mol Med 2020; 19:494-505. [PMID: 31109274 DOI: 10.2174/1566524019666190520100422] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2018] [Revised: 04/29/2019] [Accepted: 05/12/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND An increasing number of studies have described the pathological changes of placenta tissues in gestational diabetes mellitus (GDM), although the underlying mechanisms involved in this process remain uncertain. The aim of the present study was to verify the possible role of microRNA-137 (miR)-137 and FNDC5 in regulating the biological function of trophoblasts in high glucose (HG) conditions during the GDM period. METHODS Expression levels of miR-137 and FNDC5 were measured in placenta specimens, the HG-treated trophoblast cell line HTR-8/SVneo and miR-137- overexpressing HTR-8/SVneo cells using reverse transcription quantitative-PCR or western blotting. The viability of HTR-8/SVneo cells was tested using a Cell Counting kit- 8 (CCK8) assay, with cell migration assessed using scratch and transwell assays. RESULTS It was observed that the expression levels of miR-137 were increased and the expression levels of FNDC5 were decreased in the placenta tissues of women with severe GDM and in HG-exposed HTR-8/SVneo cells. In addition, upregulating miR-137 in HTR-8/SVneo cells downregulated the expression levels of FNDC5. The viability and migration of HTR-8/SVneo cells were suppressed by increased miR-137 expression levels, and upregulating FNDC5 in miR-137-overexpressing HTR-8/SVneo cells resulted in the reversal of all these effects. CONCLUSIONS The data from the present study suggest that miR-137 suppresses the viability and migration of trophoblasts via downregulating FNDC5 in GDM, which may contribute to the pathology of placenta tissues and occurrence of adverse pregnancy outcomes.
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Affiliation(s)
- Hai-Yan Peng
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China.,Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai 200032, China
| | - Hua-Ping Li
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, China
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15
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Peng HY, Chen FY, Dang R, Zuo YL, Hu PD, Yang YY, Zhou R, Rong X, Chen DH. [Effect of high-titer plasma in pediatric patients with severe adenovirus pneumonia]. Zhonghua Er Ke Za Zhi 2020; 58:392-397. [PMID: 32392955 DOI: 10.3760/cma.j.cn112140-20191111-00713] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the efficacy and safety of high-titer plasma in the treatment of pediatric patients with severe adenovirus pneumonia. Methods: The clinical data of 92 pediatric patients with severe adenovirus pneumonia admitted to pediatric intensive care unit (PICU) in Guangzhou Women and Children's Medical Center from January 2016 to October 2019 were retrospectively collected. According to the treatment with or without high-titer plasma, the patients were divided into plasma treatment group (n=41) and non-plasma treatment group (n=51). The 51 patients with chest radiograph showing more than half the lungs involved were divided into plasma treatment group (n=29) and non-plasma treatment group (n=22). According to fever duration before plasma treatment, patients were divided into early group (≤5 days, n=5), middle group (>5-10 days, n=14), and late group (>10 days, n=22). Baseline data, therapeutic effects, and prognosis of patients in each group were analyzed with t test, non-parametric rank sum test, one-way ANOVA and chi-square test. Results: Ninety-two patients were included. There were no significant differences in age, gender, body weight, fever duration, sequential organ failure assessment, and Murray lung injury score between plasma treatment group and non-plasma treatment group before admission (all P>0.05). The proportion of patients whose temperature drop to normal within 5 days was higher in plasma treatment group than that in non-plasma treatment group (88% (36/41) vs. 69% (35/51), χ(2)=4.745, P=0.029). However, there were no significant differences between the two groups in the proportions of invasive ventilator weaning within 14 days (63% (26/41) vs. 76% (39/51), χ(2)=1.868, P=0.172), transfer out from PICU within 14 days (49% (20/41) vs. 69% (35/51), χ(2)=3.724, P=0.054), discharge within 28 days (51% (21/41) vs. 61%(31/51), χ(2)=0.846, P=0.358) and survived patients (85% (35/41) vs. 76%(39/51), χ(2)=1.143, P=0.285). Among patients with severe chest radiograph, the proportions of patients whose temperature drop to normal within 5 days and survived patients were higher in plasma treatment group than those in non-plasma treatment group (86% (25/29) vs. 59% (13/22), χ(2)=4.843, P=0.028; 83% (24/29) vs. 55%(12/22), χ(2)=4.796, P=0.029, respectively). However, there were no significant differences between the two groups in the proportions of invasive ventilator weaning within 14 days (52% (15/29) vs. 59% (13/22), χ(2)=0.274, P=0.601), transfer out from PICU within 14 days (34% (10/29) vs. 45% (10/22), χ(2)=0.632, P=0.427), and discharge within 28 days (45% (13/29) vs. 45% (10/22), χ(2)=0.002, P=0.964). Among early, middle and late group, the proportions of invasive ventilator weaning within 14 days were 2/5, 13/14 and 50% (11/22), respectively, with statistically significant difference (χ(2)=8.119, P=0.017). There were no significant differences in the proportions of patients whose temperature drop to normal within 5 days (4/5, 14/14, 82% (18/22), χ(2)=2.965, P=0.227), transfer out from PICU within 14 days (2/5, 10/14, 36%(8/22), χ(2)=4.386, P=0.112), discharge within 28 days (2/5, 8/14, 50% (11/22), χ(2)=0.462, P=0.794) and survived patients (4/5, 13/14, 82% (18/22), χ(2)=0.966, P=0.617) in the three groups. Only one case with high-titer plasma therapy had rash in the course of infusing plasma and no other adverse reactions were observed. Conclusions: High-titer plasma can shorten the fever time and improve the proportion of survival patients in pediatric severe adenovirus pneumonia. The clinical effect of high-titer plasma is better in 5-10 days of fever course. High-titer plasma is an effective and safe treatment.
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Affiliation(s)
- H Y Peng
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - F Y Chen
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - R Dang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - Y L Zuo
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - P D Hu
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - Y Y Yang
- Department of Pediatric Intensive Care Unit, Guangzhou Women and Children's Medical Center (Children's Hospital), Guangzhou 510120, China
| | - R Zhou
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, Guangzhou 510120, China
| | - X Rong
- Institute of Blood Transfusion, Guangzhou Blood Center, Guangzhou 510095, China
| | - D H Chen
- Department of Pediatrics, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
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16
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Weng LC, Hou SH, Lei ST, Peng HY, Li MQ, Zhao D. Estrogen-regulated CD200 inhibits macrophage phagocytosis in endometriosis. J Reprod Immunol 2020; 138:103090. [PMID: 32014721 DOI: 10.1016/j.jri.2020.103090] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 01/16/2020] [Accepted: 01/22/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVES Endometriosis (EMS) is a benign disease that is related to estrogen, immune disorders and inflammation. The purpose of this research was to determine the expression of CD200 in EMS and to clarify its role in the pathogenesis of the disease. METHODS The levels of serum CD200 in patients with and without EMS were determined by ELISA. Furthermore, the expression of CD200 in normal eutopic endometrium and ectopic endometrium was detected by immunohistochemistry and western blotting. The CD200 receptor (CD200R) in macrophages in peritoneal fluid (pMØ) obtained from controls and patients with EMS was examined by western blotting. CD200 expression in human endometrial stromal cells (HESCs) stimulated with 17β-estradiol (E2) was measured by western blotting. Furthermore, macrophages were stimulated with different concentrations of CD200 and the effect on phagocytosis was analyzed. RESULTS The plasma CD200 levels of patients with EMS was significantly increased compared with controls (P = 0.0173, 95%CI [18.75, 159.6]). Compared with normal eutopic endometrium, the expression of CD200 was significantly increased in ectopic endometrial tissues. The CD200R expression in pMØ obtained from patients with EMS was increased compared with the controls (P = 0.0244). CD200 expression in HESCs stimulated with E2 was up-regulated. As the levels of CD200 increased, macrophage phagocytosis in vitro gradually decreased. CONCLUSIONS CD200 is an estrogen-induced molecule that impairs macrophage phagocytosis and may contribute to the immune escape of ectopic lesions in EMS.
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Affiliation(s)
- Li-Chun Weng
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
| | - Shu-Hui Hou
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
| | - Sha-Ting Lei
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
| | - Hai-Yan Peng
- Department of Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, People's Republic of China.
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, NHC Key Lab of Reproduction Regulation (Shanghai Institute of Planned Parenthood Research), Hospital of Obstetrics and Gynecology, Shanghai Medical School, Fudan University, No.1326, Pingliang Road, Shanghai, 200080, People's Republic of China.
| | - Dong Zhao
- Department of Obstetrics and Gynecology, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd., Shanghai, 200011, People's Republic of China.
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17
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Peng HY, Li HP, Li MQ. Downregulated ABHD5 Aggravates Insulin Resistance of Trophoblast Cells During Gestational Diabetes Mellitus. Reprod Sci 2020; 27:233-245. [DOI: 10.1007/s43032-019-00010-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2018] [Accepted: 03/28/2019] [Indexed: 12/12/2022]
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Yan D, Xu XR, Qian YL, Peng HY, Qian H, Yue BW, Zhao LL, Zhang ZH, Fang ZY. Chinese Patent medicine to treat a 32-year-old man with sinus bradycardia and cardiac sinus arrests: A case report. Medicine (Baltimore) 2019; 98:e15536. [PMID: 31083205 PMCID: PMC6531189 DOI: 10.1097/md.0000000000015536] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
RATIONALE Sinus bradycardia refers to a sinus heart rate <60 bpm. Cardiac sinus arrests refer to the omission of atrial activation caused by transient cessation of impulse generation at the sinoatrial node. Normally, drugs such as atropine, isoproterenol, dopamine, dobutamine, or epinephrine can be used for the acute treatment of bradycardia. Temporary pacing is used for treating severe symptomatic bradycardia due to a reversible cause. Permanent cardiac pacing is used for chronic therapy of bradycardia. However, for traditional Chinese medicine (TCM), benefiting qi and nourishing yin and activating blood circulation is the general principle in treatment and show remarkable curative effects. PATIENT CONCERNS A 32-year-old man was found to have 1-degree atrioventricular block and sinus bradycardia during a physical examination. He reported suffering from palpitation and shortness of breath occasionally. An ambulatory electrocardiogram showed sinus arrhythmia, sinus bradycardia, and significant sinus arrhythmia. The minimum heart rate was 33 bpm (beats per minute). The number of sinus arrest was 42 and the maximum RR interval was 2216 ms. DIAGNOSES The patient was diagnosed with bradyarrhythmia in Western medicine and "palpitation" in TCM. INTERVENTIONS The patient was treated with methods of benefiting qi and nourishing yin and activating blood circulation along with warming yan for nearly 5 months. CPM (Chinese patent medicine) such as Yixinshu capsule, Bingdouling oral liquid, Zhenyuan capsule, Zhibaidihuang pills were used for treatment. At the same time, he was suggested to change his lifestyles including falling asleep before 10:00 PM and abandoning spicy diets. OUTCOMES The symptoms of palpitation and shortness of breath disappeared. The minimum heart rate increased from 33 to 42 bpm and sinus arrests did not occur. The maximum RR interval decreased from 2216 to 1650 ms and the remarkable sinus arrhythmia had improved obviously. LESSONS This case report shows that TCM can be an effective alternative therapy for sinus bradycardia and cardiac sinus arrests. CPM may have been a successful intervention in arrhythmias.
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Affiliation(s)
- Dong Yan
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Xiang-Ru Xu
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Yu-Liang Qian
- Affiliated Hospital of Nanjing University of Chinese Medicine
- Department of Medicine
| | - Hai-Yan Peng
- Affiliated Hospital of Nanjing University of Chinese Medicine
- Department of Oncology, Jiangsu Province Hospital of Chinese Medicine, Nanjing, China
| | - Hui Qian
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Bo-Wen Yue
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Li-Li Zhao
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Zi-Han Zhang
- Affiliated Hospital of Nanjing University of Chinese Medicine
| | - Zhu-Yuan Fang
- Department of Cardiology, Jiangsu Province Hospital of Chinese Medicine
- Affiliated Hospital of Nanjing University of Chinese Medicine
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19
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Da JJ, Peng HY, Lin X, Shen Y, Zhao JQ, He S, Zha Y. [Resting metabolic rate estimated by bioelectrical impedance analysis and its determinants in maintenance hemodialysis patients]. Zhonghua Yi Xue Za Zhi 2018; 98:912-916. [PMID: 29665664 DOI: 10.3760/cma.j.issn.0376-2491.2018.12.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the level of resting energy expenditure (REE) estimated by bioelectrical impedance analysis and the association of resting metabolic rate (RMR) with clinical related factors, and provide new ideas for improving protein energy wasting (PEW) in maintenance hemodialysis (MHD) patients. Methods: Seven hundred and sixty-five subjects receiving MHD between July 2015 and September 2016 in 11 hemodialysis centers in Guizhou province were enrolled in this cross-sectional study. Bioelectrical impedance analysis was used to measure RMR and body composition, such as lean body mass, fat mass and body cell mass (BCM). Baseline characteristics, routine blood test indexes and biochemical data of hemodialysis patients were collected. The level of RMR and body composition in hemodialysis patients was compared by gender grouping. Then the patients were divided into four groups according to the cutoff value of RMR quartile. Spearman correlation analysis and multiple linear regression analysis were used to analyze the relationships between RMR and clinical related factors. Results: The average age of MHD patients was (54.96±15.78) years and the duriation of dialysis was (42.3±9.0) months. The level of RMR in male patients (474 cases, 61.96%) was significantly higher than that in female patients [1 591(1 444, 1 764) kcal/d vs 1 226 (1 104, 1 354) kcal/d, P<0.001]. However, this significant difference of RMR between different genders disappeared after adjusting for lean body mass (P=0.193). Multiple linear regression analysis showed that RMR was positively correlated with body surface area (β=0.817) and lactate dehydrogenase (LDH) (β=0.198), and negatively correlated with age (β=-0.141), all P<0.05. Conclusion: RMR levels in patients with maintenance hemodialysis are associated with lactate dehydrogenase level, which may become a new index to evaluate energy consumption.
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Affiliation(s)
- J J Da
- Department of Nephrology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - H Y Peng
- Renal Division, Department of Nephrology, the Affiliated Baiyun Hospital of Guizhou Medical University, Guiyang 550004, China
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Peng HY, Li HP, Li MQ. High glucose induces dysfunction of human umbilical vein endothelial cells by upregulating miR-137 in gestational diabetes mellitus. Microvasc Res 2018; 118:90-100. [PMID: 29505767 DOI: 10.1016/j.mvr.2018.03.002] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [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: 09/14/2017] [Revised: 01/07/2018] [Accepted: 03/01/2018] [Indexed: 01/12/2023]
Abstract
Recent studies have revealed considerable dysfunction of vascular endothelial cells (VECs) and abnormal expression of microRNA (miR)-137 in women with gestational diabetes mellitus (GDM), and the aim of this study was to clarify the underlying mechanism and possible role of microRNA (miR)-137 in dysfunction of VECs during GDM. We found increased levels of miR-137 in the plasma of GDM women and high-glucose (HG)-exposed HUVECs. Upregulating miR-137 in HUVECs elevated the chemokine (C-C motif) ligand 2 (CCL2) secretion and enhanced the chemotaxis and adhesion of U937 and THP-1 (two human acute monocytic leukemia cell lines) cells to HUVECs in a co-culture system. Moreover, HG stimulation and/or overexpression of miR-137 inhibited the viability, upregulated the expression levels of vascular cell adhesion molecule-1 (VCAM-1), intercellular cell adhesion molecule-1 (ICAM-1), E-selectin, and inflammatory cytokine interleukin (IL)-6, and downregulated the production of IL-8, vascular endothelial growth factor (VEGF), and angiogenesis of HUVECs in vitro. These results imply that up-regulated miR-137 by HG can restrict the viability and angiogenesis, promote the activation and inflammatory cytokine secretion of VECs, and stimulate the monocyte chemotaxis and adhesion to VECs. Ultimately, we have concluded that miR-137 is crucial to HG-induced VEC dysfunction and may be involved in pathology of GDM.
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Affiliation(s)
- Hai-Yan Peng
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, People's Republic of China
| | - Hua-Ping Li
- Department of Gynecology and Obstetrics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai 200233, People's Republic of China.
| | - Ming-Qing Li
- Laboratory for Reproductive Immunology, Shanghai Key Laboratory of Female Reproductive Endocrine Related Diseases, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, People's Republic of China; Key Laboratory of Reproduction Regulation of NPFPC, SIPPR, IRD, Fudan University, Shanghai 200032, People's Republic of China
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Zhuang YW, Wu CE, Zhou JY, Chen X, Wu J, Jiang S, Peng HY, Zou X, Liu JY, Wu DP, Gong T, Qi MH, Xue T, Liu SL, Cai H. Solasodine inhibits human colorectal cancer cells through suppression of the AKT/glycogen synthase kinase-3β/β-catenin pathway. Cancer Sci 2017; 108:2248-2264. [PMID: 28803443 PMCID: PMC5666038 DOI: 10.1111/cas.13354] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 08/08/2017] [Accepted: 08/09/2017] [Indexed: 02/06/2023] Open
Abstract
Solasodine is a main active component isolated from Solanum incanum L. that performs a wide range of functions containing anti‐oxidant, anti‐infection, and neurogenesis promotion. In this study, we explored the influence of solasodine on three types of human colorectal cancer (CRC) cell lines. The results show that solasodine prohibited CRC cell proliferation dose‐ and time‐dependently and impeded CRC cell motility by downregulating MMPs. Solasodine was also found to fuel caspase‐cascade reaction and increase the ratio between Bax and Bcl‐2 so as to induce CRC cell apoptosis. When cells were pretreated with AKT activator (insulin‐like growth factor‐1) followed by solasodine, the solasodine‐induced apoptosis was partially abrogated by insulin‐like growth factor‐1. Moreover, solasodine hindered tumor development and stimulated similar mechanisms in vivo. In general, our study provides the first evidence that solasodine has a suppressive effect on CRC cells and that this agent may be a novel therapeutic drug for CRC treatment.
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Affiliation(s)
- Yu-Wen Zhuang
- Department of Integrated Traditional and Western Medicine, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China.,The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Cun-En Wu
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Jin-Yong Zhou
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Xu Chen
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Jian Wu
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Shan Jiang
- Division of Membrane Dynamics, Department of Physiology and Cell Biology, Kobe University Graduate School of Medicine, Kobe, Japan
| | - Hai-Yan Peng
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, China.,Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Xi Zou
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Jia-Yun Liu
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Da-Peng Wu
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Tao Gong
- Nanjing Hospital of Traditional Chinese Medicine, Nanjing, China
| | - Ming-Hao Qi
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Tian Xue
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Shen-Lin Liu
- Jiangsu Province Hospital of TCM, The Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, china
| | - Hui Cai
- Department of Integrated Traditional and Western Medicine, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, China
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Zhang J, Peng HY. [Enriching shen to moisten gan method intervened adverse reactions of using hormone therapy in treating breast cancer: a review]. Zhongguo Zhong Xi Yi Jie He Za Zhi 2015; 35:124-127. [PMID: 25790689] [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: 06/04/2023]
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23
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Jiang XW, Zhang Y, Zhu YL, Zhang H, Lu K, Li FF, Peng HY. Effects of berberine gelatin on recurrent aphthous stomatitis: a randomized, placebo-controlled, double-blind trial in a Chinese cohort. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 115:212-7. [DOI: 10.1016/j.oooo.2012.09.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 09/02/2012] [Accepted: 09/09/2012] [Indexed: 10/27/2022]
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Tai TY, Tsai KS, Tu ST, Wu JS, Chang CI, Chen CL, Shaw NS, Peng HY, Wang SY, Wu CH. The effect of soy isoflavone on bone mineral density in postmenopausal Taiwanese women with bone loss: a 2-year randomized double-blind placebo-controlled study. Osteoporos Int 2012; 23:1571-80. [PMID: 21901480 PMCID: PMC3332377 DOI: 10.1007/s00198-011-1750-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 06/21/2011] [Indexed: 11/30/2022]
Abstract
UNLABELLED The treatment of 300-mg/day isoflavones (aglycone equivalents) (172.5 mg genistein + 127.5 mg daidzein) for 2 years failed to prevent lumbar spine and total proximal femur bone mineral density (BMD) from declining as compared with the placebo group in a randomized, double-blind, two-arm designed study enrolling 431 postmenopausal women 45-65 years old. INTRODUCTION This study evaluated the effects of soy isoflavones on bone metabolism in postmenopausal women. METHODS Four hundred and thirty-one women, aged 45-65 years, orally consumed 300-mg/day isoflavones (aglycone equivalents) or a placebo for 2 years in a parallel group, randomized, double-blind, two-arm study. Each participant also ingested 600 mg of calcium and 125 IU of vitamin D(3) per day. The BMD of the lumbar spine and total proximal femur were measured using dual-energy X-ray absorptiometry at baseline and every half-year thereafter. Serum bone-specific alkaline phosphatase, urinary N-telopeptide of type 1 collagen/creatinine, and other safety assessments were examined regularly. RESULTS Two hundred out of 217 subjects in the isoflavone group and 199 out of 214 cases in placebo group completed the treatment. Serum concentrations of isoflavone metabolites, genistein and daidzein, of the intervention group were remarkably elevated following intake of isoflavones (p < 0.001). However, differences in the mean percentage changes of BMD throughout the treatment period were not statistically significant (lumbar spine, p = 0.42; total femur, p = 0.39) between the isoflavone and placebo groups, according to the generalized estimating equation (GEE) method. A significant time trend of bone loss was observed at both sites as assessed by the GEE method following repeated measurement of BMD (p < 0.001). Differences in bone marker levels were not significant between the two treatment groups. CONCLUSION Treatment with 300-mg/day isoflavones (aglycone equivalents) failed to prevent a decline in BMD in the lumbar spine or total femur compared with the placebo group.
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Affiliation(s)
- T Y Tai
- Division of Geriatric Research, Institute of Population Health Sciences, National Health Research Institutes, Taipei, Taiwan.
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Jiang XW, Zhang Y, Song GD, Li FF, Peng HY, Yang SK, Sun GL. Clinical evaluation of allicin oral adhesive tablets in the treatment of recurrent aphthous ulceration. Oral Surg Oral Med Oral Pathol Oral Radiol 2012; 113:500-4. [DOI: 10.1016/j.oooo.2011.09.007] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 09/17/2011] [Accepted: 09/18/2011] [Indexed: 02/01/2023]
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26
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Lin F, Peng HY, Chen JX, Chik DTW, Cai Z, Wong KMC, Yam VWW, Wong HNC. Synthesis and Photophysical Studies of Chiral Helical Macrocyclic Scaffolds via Coordination-Driven Self-Assembly of 1,8,9,16-Tetraethynyltetraphenylene. Formation of Monometallic Platinum(II) and Dimetallic Platinum(II)−Ruthenium(II) Complexes. J Am Chem Soc 2010; 132:16383-92. [DOI: 10.1021/ja106599j] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fang Lin
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Hai-Yan Peng
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Jing-Xing Chen
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - David T. W. Chik
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Zongwei Cai
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Keith M. C. Wong
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Vivian W. W. Yam
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
| | - Henry N. C. Wong
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 345 Ling Ling Road, Shanghai 200032, China, Department of Chemistry, Hong Kong Baptist University, Waterloo Road, Kowloon, Hong Kong SAR, China, Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China, and Institute of Molecular Functional Materials, Department of Chemistry, and Center of Novel Functional Molecules, The Chinese University
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Wang MY, Zhao FM, Peng HY, Lou CH, Li Y, Ding X, Yu XY, Yang GM, Xu DQ, Jiang LH, Zhang X, Ye LH, Cai BC. Investigation on the morphological protective effect of 5-hydroxymethylfurfural extracted from wine-processed Fructus corni on human L02 hepatocytes. J Ethnopharmacol 2010; 130:424-428. [PMID: 20576490 DOI: 10.1016/j.jep.2010.05.024] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2009] [Revised: 03/20/2010] [Accepted: 05/17/2010] [Indexed: 05/29/2023]
Abstract
AIM To determine the mode of action of 5-hydroxymethylfurfural (5-HMF) extracted from wine-processed Fructus corni on hepatoprotective activities, the effects of 5-HMF on H(2)O(2)-induced human L02 hepatocytes injury was examined. MTHODS: Hepatocytes L02 injured by H(2)O(2) was treated by 5-HMF. The morphological changes of the cells were observed under inverted phase-contrast, fluorescence, and transmission electron microscopy and the activities of caspase-9 and caspase-3 were tested by enzyme-linked immunosorbent detector. RESULTS It revealed that 5-HMF improved the morphology of H(2)O(2)-treated human L02 hepatocytes, and also inhibited the level of caspase-9 and caspase-3 of them. CONCLUSIONS These results suggested a morphological hepatocyte protective effect and the anti-apoptosis mechanism by 5-HMF.
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Affiliation(s)
- Ming-Yan Wang
- Jiangsu Key Laboratory of Chinese Medicine Processing, Nanjing University of Chinese Medicine, Nanjing, China
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Abstract
The purpose of this paper is to review the etiology, pathogenesis, syndrome differentiation and treatment of postcholecystectomy syndrome by Chinese medicine (CM). According to CM theory, the basic pathological mechanism of postcholecystectomy syndrome is the failure of liver and gallbladder in keeping smooth flow of Qi and of spleen and stomach in transportation and transformation, and the retention of dampness-heat. The commonest clinical syndromes are liver Qi depression, spleen deficiency, dampness-heat, etc. The most frequently used therapeutic methods are regulating Qi movement, eliminating dampness, dissolving phlegm, purging Fu-organ and harmonizing liver and spleen.
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Zhang Z, Gao J, Wong LM, Tao JG, Liao L, Zheng Z, Xing GZ, Peng HY, Yu T, Shen ZX, Huan CHA, Wang SJ, Wu T. Morphology-controlled synthesis and a comparative study of the physical properties of SnO2 nanostructures: from ultrathin nanowires to ultrawide nanobelts. Nanotechnology 2009; 20:135605. [PMID: 19420508 DOI: 10.1088/0957-4484/20/13/135605] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Controlled synthesis of one-dimensional materials, such as nanowires and nanobelts, is of vital importance for achieving the desired properties and fabricating functional devices. We report a systematic investigation of the vapor transport growth of one-dimensional SnO(2) nanostructures, aiming to achieve precise morphology control. SnO(2) nanowires are obtained when SnO(2) mixed with graphite is used as the source material; adding TiO(2) into the source reliably leads to the formation of nanobelts. Ti-induced modification of crystal surface energy is proposed to be the origin of the morphology change. In addition, control of the lateral dimensions of both SnO(2) nanowires (from approximately 15 to approximately 115 nm in diameter) and nanobelts (from approximately 30 nm to approximately 2 microm in width) is achieved by adjusting the growth conditions. The physical properties of SnO(2) nanowires and nanobelts are further characterized and compared using room temperature photoluminescence, resonant Raman scattering, and field emission measurements.
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Affiliation(s)
- Z Zhang
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, 637371, Singapore
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Kuang X, Du JR, Liu YX, Zhang GY, Peng HY. Postischemic administration of Z-Ligustilide ameliorates cognitive dysfunction and brain damage induced by permanent forebrain ischemia in rats. Pharmacol Biochem Behav 2007; 88:213-21. [PMID: 17889286 DOI: 10.1016/j.pbb.2007.08.006] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2006] [Revised: 08/04/2007] [Accepted: 08/13/2007] [Indexed: 10/22/2022]
Abstract
Previous studies have demonstrated that Z-Ligustilide (LIG), a characterized phthalide constituent present in numerous medical Umbelliferae plants, has significant neuroprotective effects in transient forebrain ischemia and permanent cerebral focal ischemia. The present study further investigated the effect of LIG on chronic cerebral hypoperfusion. Male Wistar rats were subjected to permanent ligation of both common carotid arteries (2VO). On Days 8-12 postsurgery, rat cognition was assessed in the Morris water maze. Rats with significantly impaired acquisition of spatial information were randomly allocated to three groups and orally administered LIG (10 or 40 mg/kg/day) or volume-matched vehicle on Days 13-40 post-2VO surgery. The sham-operated group served as controls. After long-term treatment with LIG, the impaired animals' behavioral, biochemical, and histopathological features were examined. Compared to the sham-operated group, significant cognitive impairment was observed in the vehicle-treated group 40 days after 2VO. Shortened mean escape latency was detected in the Morris water maze in rats treated with LIG (p<0.01 vs. vehicle-treated group) during the same trial days. Chronic 2VO-induced pathological changes included neuronal loss and an increase of glial fibrillary acidic protein (GFAP)-immunoreactive astrocytes in the hippocampus. These effects were prevented with LIG treatment (p<0.01 vs. vehicle-treated group). LIG also significantly reduced malondialdehyde levels and increased superoxide dismutase activity in ischemic brain tissue (p<0.05 and p<0.01 vs. vehicle-treated group). In addition, LIG significantly increased choline acetyltransferase activity and inhibited acetylcholinesterase activity in ischemic brain tissues (p<0.05 and p<0.01 vs. vehicle-treated group). The present data demonstrate that LIG significantly prevented chronically hypoperfused cognitive deficits and brain damage at least partly through an antioxidant effect and improved cholinergic activity. The present findings suggest that LIG may have therapeutic potential in treating vascular dementia and cerebrovascular insufficiency.
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Affiliation(s)
- Xi Kuang
- Department of Pharmacology, Key Laboratory of Drug Targeting, Ministry of Education, Sichuan University West China School of Pharmacy, Chengdu, PR China 610041
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Peng HY, Du JR, Zhang GY, Kuang X, Liu YX, Qian ZM, Wang CY. Neuroprotective effect of Z-ligustilide against permanent focal ischemic damage in rats. Biol Pharm Bull 2007; 30:309-12. [PMID: 17268071 DOI: 10.1248/bpb.30.309] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [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: 11/22/2022]
Abstract
The present study investigated the effect of Z-Ligustilide (LIG), a characterized 3-n-alkyphthalide derivative existed in many medical Umbelliferae plants, on permanent focal ischemic brain injury in rats. Focal cerebral ischemia was induced by the occlusion of middle cerebral artery (MCA) for 24 h. LIG (20, or 80 mg/kg), orally administered at 2 h after ischemia, reduced the cerebral infarct volumes by 48.29% and 84.87% respectively compared to control group as visualized by 2,3,5-triphenyltetrazolium chloride (TTC) staining (p<0.01). Treatment with LIG could dose-dependently reduce brain swelling by 68.62% and 82.08% (p<0.01), and significantly improve behavioral deficits (p<0.01). In addition, LIG at the above used doses had no significant effect on rat body temperature. These data, along with previous findings in our lab demonstrating the neuroprotective effects of LIG in transient cerebral ischemia, suggest that LIG may be a potential neuroprotective agent for the treatment of ischemic stroke in future.
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Affiliation(s)
- Hai-Yan Peng
- Department of Pharmacology, West China School of Pharmacy, Sichuan University, Chengdu, China
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Zhang XX, Liang ZP, Peng HY, Zhang ZX, Tang XC, Zhao SL, Xiao YZ, Zhang WJ. Location and phylogenetic analysis of the region immediately upstream of the granulin gene of the Clostera anachoreta granulovirus. Virus Res 2006; 121:97-102. [PMID: 16814895 DOI: 10.1016/j.virusres.2005.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2005] [Revised: 10/19/2005] [Accepted: 10/19/2005] [Indexed: 10/24/2022]
Abstract
The region immediately upstream of the granulin gene from Clostera anachoreta granulovirus (ClanGV) was identified from hybridization experiments and sequenced. The sequence of 5122nt EcoRI restriction fragment was presented and compared with the equivalent area in other GVs. Database searches showed that this region contained three open reading frames (ORFs) similar to the baculovirus genes (egt, fgf and me53, respectively) and four ORFs unique to ClanGV genome. Phylogenetic trees of the baculovirus genes egt and me53 were constructed. These analyses indicated that ClanGV genes may be more closely related to CfGV, CpGV, ClGV, PoGV and AoGV than to PxGV and XcGV.
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Affiliation(s)
- X X Zhang
- Virus Molecular Ecology, Wuhan Institute of Virology, Chinese Academy of Sciences, Xiaohongshan, Wuchang, Wuhan, Hubei, China 430071
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Zhang XX, Liang ZP, Peng HY, Zhang ZX, Tang XC, Liu TQ. Characterization and partial genome sequence analysis of Clostera anachoreta granulovirus. Virus Res 2005; 113:36-43. [PMID: 15936107 DOI: 10.1016/j.virusres.2005.04.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [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: 11/11/2004] [Revised: 03/25/2005] [Accepted: 04/06/2005] [Indexed: 11/30/2022]
Abstract
The morphological and biological properties as well as partial genomic sequencing of a granulovirus isolated from Clostera anachoreta (Lepidoptera: Notodontidae), C. anachoreta granulovirus (ClanGV), were carried out. The ovoidal occlusion bodies were 337 nm x 170 nm in size, and each granule contained one single rod-shape virion, with a mean size of 250 nm x 46 nm. Granulin had a molecular weight of approximately 30 kDa. ClanGV genome size was estimated as 104.34 kb based on the restriction fragments. The restriction pattern of the ClanGV genome was different from other GVs. A restriction fragment genomic library of ClanGV genome was constructed. The library consisted of nine SalI fragments, seven HindIII fragments and seven EcoRI fragments. One 4.8 kb fragment of the genome, digested by SalI, was sequenced and analyzed. This region was composed of eight unknown ORFs, two baculoviruses homologous gene (vp1054 and lef10) and partial sequence of lef-8. The unknown ORFs included three unique to ClanGV, the other five ORFs were related to baculoviruses. The ORFs, located within this restriction fragment, were compared to homologues in other GVs. The results indicated that ClanGV, CpGV, ClGV, AoGV and PoGV had similar arrangement and orientation of the homologous ORFs. Phylogenetic analysis of VP1054 proteins from 20 baculoviruses indicated that ClanGV was more closely related to CpGV, ClGV, AoGV and PoGV than to other baculoviruses.
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Affiliation(s)
- X X Zhang
- Laboratory for Biological Control, Wuhan Institute of Virology, Chinese Academy of Sciences, Xiaohongshan, Wuchang, Wuhan, Hubei 430071, PR China
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Zhao SL, Liang CY, Zhang WJ, Tang XC, Peng HY. Characterization of the RNA-binding domain in the Dendrolimus punctatus cytoplasmic polyhedrosis virus nonstructural protein p44. Virus Res 2005; 114:80-8. [PMID: 16023751 DOI: 10.1016/j.virusres.2005.06.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 04/05/2005] [Revised: 06/01/2005] [Accepted: 06/06/2005] [Indexed: 11/24/2022]
Abstract
Dendrolimus punctatus cytoplasmic polyhedrosis virus (DpCPV-1) belongs to the Cypovirus genus in the Reoviridae family. The ORF of genome segment 8 (S8) of DpCPV-1 was cloned into vector pMAL-c2X and used to express a 44kDa protein (p44) in E. coli, which was detected by Western blotting. The gel mobility shift assays showed that p44 had ssRNA-binding activity. Competitive assay indicated that this protein only bind to ssRNA and could not interact with DNA and dsRNA. The binding of p44 to ssRNA is sequence non-specific. To identify the domain(s) important for RNA binding of the protein, a number of deletions were made. These truncated proteins were expressed in E. coli and purified. The affinity of each truncated protein towards ssRNA was then assayed by electrophoretic mobility shift assays and northwestern blot. The results indicated that glutamic acid-rich domain in the central region of p44 from residues 104 to 201 was the ssRNA-binding domain.
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Affiliation(s)
- S L Zhao
- Laboratory for Biological Control, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan 430071, PR China.
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Abstract
The RNA-binding properties of VP4 protein of Dendrolimus punctatus cytoplasmic polyhedrosis virus (DpCPV) VP4 were analyzed. VP4 was expressed in E. coli and assayed for RNA binding activity by gel mobility shift assay. VP4 was found to bind RNA (ssRNA and dsRNA) in a sequence-independent manner, but did not interact with DNA. To identify the domain(s) of the protein important for RNA binding, a number of deletions were made and tested by gel mobility shift assays and northwestern blot. The central region of VP4 from amino acid residues 77 to 155 was found to contain the RNA binding domain.
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Affiliation(s)
- S L Zhao
- Laboratory for Biological Control, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, P.R. China
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Peng HY, Lam CK, Mak TCW, Cai Z, Ma WT, Li YX, Wong HNC. Chiral Rodlike Platinum Complexes, Double Helical Chains, and Potential Asymmetric Hydrogenation Ligand Based on “Linear” Building Blocks: 1,8,9,16-Tetrahydroxytetraphenylene and 1,8,9,16-Tetrakis(diphenylphosphino)tetraphenylene. J Am Chem Soc 2005; 127:9603-11. [PMID: 15984888 DOI: 10.1021/ja051013l] [Citation(s) in RCA: 99] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper is concerned with the synthesis of 1,8,9,16-tetrahydroxytetraphenylene (3a) via copper(II)-mediated oxidative coupling, its resolution to optical antipodes, and its conversion to 1,8,9,16-tetrakis(diphenylphosphino)tetraphenylene (3b). On the basis of these chiral "linear" building blocks, three rodlike chiral complexes, triblock (R,R,R,R)-17 and (S,S,S,S)-20 and pentablock (R,R,R,R,R,R,R,R)-22, were constructed. As a hydrogen bond donor, racemic and optically active 3a was allowed to assemble with linear acceptors to afford highly ordered structures. A 1:1 adduct of 4,4'-bipyridyl and (+/-)-3a exists in a dimeric form of 3a linked by 4,4'-bipyridyl through hydrogen bonds. Pyrazine serves as a short linker between achiral parallel chains each formed by (+/-)-3a, while self-assembly of homochiral 3a into alternate parallel chains occurs in the adduct of 5,5'-dipyrimidine with (+/-)-3a. Self-assembly of (S,S)-3a or (R,R)-3a with 4,4'-dipyridyl yielded a packing of chiral double helical chains formed by chiral tetrol 3a molecules. A novel chiral ligand, (S,S)-23, derived from 3a was used in the asymmetric catalytic hydrogenation of alpha-acetamidocinnamate, yielding up to 99.0% ee and 100% conversion.
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Affiliation(s)
- Hai-Yan Peng
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis and The State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences, 354 Feng Lin Road, Shanghai 200032, China
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Peng HY, Zhang YH, Wang M, Xia D. [Inhibition of Longzhi extracts on tumor growth of transplanted H22 and S180 in mice]. ACTA ACUST UNITED AC 2004; 2:213-5. [PMID: 15339449 DOI: 10.3736/jcim20040319] [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: 11/11/2022]
Abstract
OBJECTIVE To study the inhibitory effect of Longzhi extracts (extracts from a Chinese herbal compound) on the growth of transplanted hepatoma H22 and sarcoma S180 in mice. METHODS Certain dosage of Longzhi extracts was dissolved into distilled water to obtain the suspension of definite concentration. The suspension of 0.2 ml was planted on the right forefoot of each mouse. The mice were randomly divided into groups 24 hours later and treated for 7 days. One day after the treatment stopped, the mice were sacrificed and the tumor masses were taken out and weighed. RESULTS The inhibition rates of Longzhi extracts on the tumor of transplanted H22 and S180 were 63% and 41% respectively. CONCLUSION Longzhi extracts has antitumor action.
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Affiliation(s)
- Hai-Yan Peng
- Department of Internal Medicine of Traditional Chinese Medicine, First Clinical College of Nanjing University of Traditional Chinese Medicine, Nanjing, Jiangsu Province 210029, China.
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Hong JJ, Duan JL, Zhao SL, Xu HG, Peng HY. Nucleotide sequences of genome segments S6, S7 and S10 of Dendrolimus punctatus cypovirus 1. Arch Virol 2003; 149:183-90. [PMID: 14689283 DOI: 10.1007/s00705-003-0193-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [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: 03/16/2003] [Revised: 01/01/2003] [Accepted: 07/08/2003] [Indexed: 10/26/2022]
Abstract
The nucleotide sequences of genome segments S6, S7 and S10 of Dendrolimus punctatus cypovirus 1 Hunan I (DpCPV-HN(I)) and DpCPV-HN(I)-Se(3) (DpCPV-HN(I) passed three times in Spodoptera exigua) were determined. Segment S10 was 944 nucleotides in length and encoded a polyhedrin of 248 amino acids (28,439 Da). Only two nucleotide mutations were found between DpCPV-HN(I) S10 and DpCPV-HN(I)-Se3 S10, and the deduced amino acid sequences of the polyhedrin proteins were identical. Segment S7, 1 501 nucleotides, encoded a protein of 448 amino acids ( approximately 50 kDa; p50). Thirty-one nucleotide mutations were found between DpCPV-HN(I) S7 and DpCPV-HN(I)-Se3 S7, but these resulted in only four amino acid changes. DpCPV-HN(I) S6 encoded a protein of 561 amino acids (63,688 Da; p64). The amino acid sequence of p64, had a high leucine content (10%), and contained a leucine zipper motif and one ATP/GTP-binding site motif.
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Affiliation(s)
- J J Hong
- Key Laboratory of Molecular Virology, Wuhan Institute of Virology, Chinese Academy of Sciences, Wuhan, PR China
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Abstract
The complete nucleotide sequences of genomic segments S1 to S6 from Dendrolimus punctatus cypovirus 1 (DpCPV-1) have been determined. Each segment of S1 to S6 possess a single open reading frame. Conserved motifs 5' (AGUAA) and 3'(GUUAGCC) were found at the ends of each segment. Comparison of the proteins of DpCPV with those of other members in the family Reoviridae lead us to suggest that S1, S3, S4 and S6 encode the viral structural protein VP1, VP2, VP3 and VP4, respectively. S5 encoded viral non-structural protein p100 and S2 encodes an RNA-dependent RNA polymerase (RdRp). Motif analysis shows that VP3 is similar to the methyltransferase of Methanosarcina mazei Goe1, VP4 has motifs for leucine zipper and ATP/GTP-binding sites, and p100 is remarkably similar to foot-and-mouth disease virus 2A protease (FMDV 2Apro). Phylogenetic analysis of RdRps from nine viruses of the family Reoviridae indicates that DpCPV is a type 1 cypovirus, more related to Bombyx mori cypovirus (BmCPV) than to other cypovirus species. DpCPV is more related to Rice ragged stunt virus (RRSV) than to other members of different genera of the family Reoviridae, which seems to confirm the previous hypothesis that plant reoviruses originated from insect reoviruses.
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Affiliation(s)
- S L Zhao
- Laboratory for Biological Control, Wuhan Institute of Virology, CAS, Wuhan, China
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Zhao SL, Liang CY, Hong JJ, Xu HG, Peng HY. Molecular characterization of segments 7-10 of Dendrolimus punctatus cytoplasmic polyhedrosis virus provides the complete genome. Virus Res 2003; 94:17-23. [PMID: 12837553 DOI: 10.1016/s0168-1702(03)00118-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The nucleotide sequences of genomic segments S7-S10 from Dendrolimus punctatus cypovirus strain Hunan (DpCPV-Hn) have been determined. This provides the complete genome sequences of DpCPV-Hn. Each segment of S7-S10 possess a single segment each. Homology searches showed that the nucleotide sequences and the deduced amino acid sequences of DpCPV S7-10 had high level of identities with those of Bombyx mori cypovirus (BmCPV) S7-10, respectively. While the amino acid sequences of the proteins encoded by DpCPV S7 and S8 have low identities with those of the proteins encoded by type 14 Lymantria dispar cypovirus S7 and S8, respectively. DpCPV S7 encodes viral structural protein VP5, S8 and S9 encode viral non-structural proteins, and S10 encodes polyhedrin gene, according to the function of the genome segments of BmCPV. There are glutamic-acid-rich and proline-rich domains in the central region of DpCPV S8 encoded protein. A nuclear localization signal was found in the protein encoded by DpCPV S9. Phylogenetic analysis of RNA-dependent RNA polymerases from nine viruses of the family Reoviridae and polyhedrin from eight viruses of the genus Cypovirus indicate that DpCPV is a type 1 cypovirus, more closely related to BmCPV than to other cypovirus species. These results also support the classification of CPV groups based on the electrophoretic migration of genomic dsRNA.
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Affiliation(s)
- S L Zhao
- Laboratory for Biological Control, Wuhan Institute of Virology, CAS, Wuchang, 430071, Wuhan, Hubei, China
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Abstract
A diamond nucleation site responsible for epitaxial growth of diamond on silicon by chemical vapor deposition (CVD) is identified in high-resolution transmission electron microscopic images. Other sites in the same sample leading to polycrystalline growth, but deleterious to epitaxial CVD growth, are also described. A mechanism for the heteroepitaxial growth of diamond is suggested, in which etching of the nondiamond carbon binder exposes and removes nonadherent nanodiamond nuclei, leaving intact only those directly nucleated on the silicon substrate. This work enhances our understanding of diamond nucleation and heteroepitaxial growth and its potential applications.
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Affiliation(s)
- ST Lee
- Department of Physics and Materials Science and Center of Super-Diamond and Advanced Films, City University of Hong Kong, Hong Kong, China
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Abstract
One hundred and sixty centenarians were discovered and followed up for 7 years (1982-88) in Shanghai. The proportion of centenarians in the population was non-significantly greater in the urban than in the rural area and centenarians were in general increasing in both areas over the years. The factors promoting longevity were good medical care and benevolent attention from family members. Autopsy was performed in eight centenarians revealing the main causes of death as pneumonia and cancer.
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Affiliation(s)
- Z X Zheng
- Shanghai Institute of Geriatrics, Hua Dong Hospital, Shanghai, People's Republic of China
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