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| 1 | Carbon isotope composition of the Lower Triassic marine carbonates, Lower Yangtze Region, South China显示文摘Studies on three Lower Triassic sections located on the shallow water platform, the deep water slope and in the deep water basin in the Lower Yangtze Region, South China, show the similar trend of carbon isotope evolution. Biostratigraphic correlations among the Lower Triassic sections on the basis of standard conodont zones indicate that three negative shifts occurred in the Griesbachian, the Smithian and the late Spathian stages respectively, and one distinctly positive shift occurred in the early Spathian stage. Trend of carbon isotope evolution of the Lower Triassic reflects some significant changes in the global carbon cycle. Moreover, δ 13C background values are intensively controlled by palaeogeographic environment. In general, δ 13C values from deep-water slope carbonates are lighter than those from carbonate platform and heavier than those from deep-water basin carbonates. The positive carbon isotope excursion may be induced by a significant amount of organic carbon burial in marine sediments and increase in primary productivity. The large negative carbon isotope excursions during the Early Triassic in Lower Yangtze Region are interpreted to relate to volcano eruptions based on tuffaceous claystone interlayers observed near the Permian-Triassic boundary, the Induan- Olenekian boundary and the Lower Triassic-Middle Triassic boundary. | ZUO Jingxun1,2, TONG Jinnan3, QIU Haiou4 & ZHAO Laishi3 1. Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China 2. Henan Institute of Geological Survey, Zhengzhou 450007, China 3. State Key Laboratory of Geological Processes and Mineral Resources at China University of Geosciences, Wuhan 430074, China 4. Faculty of Material Sciences and Chemical Engineering, China University of Geosciences, Wuhan 430074, China | 2006 | Science China Earth Sciences2006,49,3: | 32 |
| 2 | Anti-SARS-CoV-2 activities in vitro of Shuanghuanglian preparations and bioactive ingredients显示文摘Human infection with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)causes coronavirus disease 2019(COVID-19)and there is no cure currently.The 3CL protease(3CLpro)is a highly conserved protease which is indispensable for CoVs replication,and is a promising target for development of broad-spectrum antiviral drugs.In this study we investigated the anti-SARS-CoV-2 potential of Shuanghuanglian preparation,a Chinese traditional patent medicine with a long history for treating respiratory tract infection in China.We showed that either the oral liquid of Shuanghuanglian,the lyophilized powder of Shuanghuanglian for injection or their bioactive components dose-dependently inhibited SARS-CoV-23CLpro as well as the replication of SARS-CoV-2 in Vero E6 cells.Baicalin and baicalein,two ingredients of Shuanghuanglian,were characterized as the first noncovalent,nonpeptidomimetic inhibitors of SARS-CoV-23CLpro and exhibited potent antiviral activities in a cell-based system.Remarkably,the binding mode of baicalein with SARS-CoV-23CLpro determined by X-ray protein crystallography was distinctly different from those of known 3CLpro inhibitors.Baicalein was productively ensconced in the core of the substrate-binding pocket by interacting with two catalytic residues,the crucial S1/S2 subsites and the oxyanion loop,acting as a“shield”in front of the catalytic dyad to effectively prevent substrate access to the catalytic dyad within the active site.Overall,this study provides an example for exploring the in vitro potency of Chinese traditional patent medicines and effectively identifying bioactive ingredients toward a specific target,and gains evidence supporting the in vivo studies of Shuanghuanglian oral liquid as well as two natural products for COVID-19 treatment. | Hai-xia Su Sheng Yao Wen-feng Zhao Min-jun Li Jia Liu Wei-juan Shang Hang Xie Chang-qiang Ke Hang-chen Hu Mei-na Gao Kun-qian Yu Hong Liu Jing-shan Shen Wei Tang Lei-ke Zhang Geng-fu Xiao Li Ni Dao-wen Wang Jian-ping Zuo Hua-liang Jiang Fang Bai Yan Wu Yang Ye Ye-chun Xu | 2020 | Acta Pharmacologica Sinica2020,41,9: | 32 |
| 3 | Lower Triassic Inorganic Carbon Isotope Excursion in Chaohu, Anhui Province, China显示文摘This paper reports a Lower Triassic inorganic carbon isotope profile from the North Pingdingshan Section in Chaohu, Anhui Province, China, which was situated in a deep part of the Lower Yangtze carbonate ramp. The δ ( 13 C) excursion shows two periods from the Permian Triassic boundary to the lower Spathian substage, corresponding to the ecosystem undergoing evolution and recovery after the end Permian mass extinction and related events. The first period starts at the δ ( 13 C) depletion caused by the mass extinction and evolves with a gradual δ ( 13 C) increase resulting from the development of some disaster taxa during the Induan. The strong Smithian δ ( 13 C) depletion in the second period might be formed by the collapse of the disaster ecosystem and the biotic recovery occurred with the explosive increase of bioproductivity in the Spathian. Thus the δ ( 13 C) excursion in the Lower Triassic expresses patterns of biotic evolution and recovery during the erratic ecosystem that followed the great end Permian mass extinction. | Tong Jinnan Qiu Haiou Zhao Laishi Zuo Jingxun China University of Geosciences, Wuhan 430074 | 2002 | Journal of China University of Geosciences2002,13,2: | 26 |
| 4 | Transduction of Fas gene or Bcl-2 antisense RNA sensitizes cultured drug resistant gastric cancer cells to chemotherapeutic drugs显示文摘INTRODUCTIONChemotherapyisoneofthemajormethodsintumortreatment,butitoftendoesnotworkduetomultidrugresistance(MDR).Recentstudi... | XIAO Bing, SHI Yong Quan, ZHAO Yan Qiu, YOU Han, WANG Zuo You, LIU Xian Ling, YIN Fang, QIAO Tai Dong and FAN Dai Ming | 1998 | World Journal of Gastroenterology1998,4,5: | 24 |
| 5 | Malate transported from chloroplast to mitochondrion triggers production of ROS and PCD in Arabidopsis thaliana显示文摘规划房间死亡(PCD ) 是一个基本生物过程。在马赛克死亡 1 的缺乏(MOD1 ) ,质体局部性的 enoyl-ACP reductase,导致反应的氧种类(ROS ) 和 PCD 的累积,它能被 mitochondrial 建筑群压制我变化,从叶绿体显示一个信号到线粒体。然而,这个信号尚待被阐明。在这研究,通过克隆并且分析一系列 mod1 suppressors,我们揭示调整 mitochondrial ROS 和扳机 PCD 的产生的一条全面细胞器通讯小径。我们证明在 PLASTIDIAL NAD 依赖的 MALATE 脱氢酶(plNAD-MDH ) 的变化, chloroplastic DICARBOXYLATE TRANSPORTER 1 (DiT1 ) 并且(mMDH1 ) MITOCHONDRIAL MALATE 脱氢酶 1 能各在 mod1 救 ROS 累积和 PCD 显型,经由 malate 梭从叶绿体表明直接通讯到线粒体。进一步的研究证明这些元素在不同光周期条件下面在氧化还原作用动态平衡和植物生长起关键作用。而且,我们表明 ROS 水平和 PCD 显著地在房间,它能是戏剧性地稀释了由的对待 malate 的 HeLa 被增加人的基因 MDH2 击倒, Arabidopsis mMDH1 的 ortholog。这些结果揭开在植物和动物系统的一条保存导致 malate 的 PCD 小径,革命化我们在细胞器之间的通讯的理解。 | Yannan Zhao Lilan Luo Jiesi Xu Peiyong Xin Hongyan Guo Jian Wu Lin Bai Guodong Wang Jinfang Chu Jianru Zuo Hong Yu Xun Huang Jiayang Li | 2018 | Cell Research2018,28,4: | 24 |
| 6 | 新型冠状病毒公认受体血管紧张素转换酶2的单细胞RNA表达情况显示文摘研究发现,2019新型冠状病毒与严重急性呼吸综合征-冠状病毒(severe acute respiratory syndromecoronavirus,SARS-CoV)存在相同的受体———血管紧张素转换酶2(angiotensin converting enzyme 2,ACE2)。在此,研究者基于公共数据库和最新的单细胞转录组测序技术,分析了ACE2RNA在正常人肺中的表达谱。结果表明,ACE2的表达集中在一小部分Ⅱ型肺泡上皮细胞中。 | 刘青(译) 叶鹏(审校) Zhao Y Zhao Z Wang Y Zhou Y Ma Y Zuo W | 2020 | 中华高血压杂志2020,28,3: | 24 |
| 7 | Prevalence of irritable bowel syndrome in Chinese college and university students assessed using Rome Ⅲ criteria显示文摘AIM:To estimate the prevalence of irritable bowel syndrome(IBS)in college and university students of North China and certain related factors for IBS.METHODS:A total of 2500 students from Shandong University in North China were asked in February-March 2009 to complete questionnaires,including the Rome Ⅲquestionnaire,hospital anxiety and depression scale,and IBS-quality of life questionnaire(IBS-QOL).RESULTS:Among the 2126 students with complete data,the prevalence of IBS was 7.85%according to the RomeⅢcriteria,with a female/male ratio of 1.78:1.Most students had the IBS-constipation subtype (36.5%),followed by IBS-diarrhea subtype(31.1%)and IBS-mixed subtype(23.9%).The students with IBS had a higher anxiety and depression score than those without IBS.Low exercise level and anxiety indicated a high risk for IBS.The mean score of IBS patients was 74.2± 4.242 on the IBS-QOL.CONCLUSION:The prevalence of IBS is 7.85%in Chinese college and university students according to the RomeⅢcriteria.Low exercise level and anxiety may be the risk factors for IBS. | Yan-Yan Dong Xiu-Li Zuo Chang-Qing Li Yan-Bo Yu QiuJie Zhao Yan-Qing Li | 2010 | World Journal of Gastroenterology2010,16,33: | 23 |
| 8 | The global image of the Moon obtained by the Chang'E-1:Data processing and lunar cartography显示文摘The global lunar image of the first phase of Chinese Lunar Exploration Program is the first image that covered all over the surface of the Moon. It will serve as a critical foundation for succeeding exploration and scientific research. In this paper, the acquisition, characteristics, and data quality of Chang'E-1 CCD image data are described in detail. Also described are the methodology and procedure of data processing. According to rule of planetary cartography, the image data have been processed, geometrically corrected, and then mosaicked and merged in a scale of 1:2.5 million. The results of data processing and charting show that the image data of Chang'E-1 CCD and their geometric precision meet the demand of charting a map in the scale of 1:2.5 million. The relative geometric positioning precision of the global image is better than 240 m, and the absolute geometric positioning precision is slightly better than that of the ULCN2005 and Clementine lunar basemap (V2.0). The plane positioning precision is approximately 100-1500 m. This global image proves to be the best global image of the Moon so far in terms of space coverage, image quality, and positioning precision. | LI ChunLai1, LIU JianJun1, REN Xin1, MOU LingLi1, ZOU YongLiao1, ZHANG HongBo1, Lü Chang1, LIU JianZhong1, ZUO Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAO BaoChang2, YANG JianFeng2, ZOU XiaoDuan1, WANG Min1, XU Chun1, KONG DeQing1, WANG XiaoQian1, WANG Fang1, GENG Liang1, ZHANG ZhouBin1, ZHENG Lei1, ZHU XinYing1, LI JunDuo1 & OUYANG ZiYuan11 National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, China 2 Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an 710119, China | 2010 | Science China Earth Sciences2010,53,8: | 22 |
| 9 | Clostridium butyricum alleviates intestinal low-grade inflammation in TNBS-induced irritable bowel syndrome in mice by regulating functional status of lamina propria dendritic cells显示文摘BACKGROUND Irritable bowel syndrome (IBS) is one of the most common functional gastroenterological diseases characterized by abnormal visceral sensitivity and lowgrade inflammation. The role of Clostridium butyricum (C. butyricum) in reducing intestinal low-grade inflammation via immune pathways has been well defined. However, the detailed mechanisms of the effects of C. butyricum on intestinal mucosal immunity, especially on immune cells of the lamina propria, remain unclear. Dendritic cells (DCs), which are important immune cells, secrete proinflammatory cytokines (IL-1β, IL-6, and others) and express T cell immunoglobulin and mucin domain-3 (TIM3), promoting proliferation and activation of DCs, and mediating Th1 and Th17 inflammatory responses. AIM To investigate the role of DCs in the development of IBS in a rat model and to understand the regulation of DCs after C. butyricum intervention. METHODS An IBS animal model was established using C57BL/6 mice, and C. butyricum was continuously administered via the intragastric route to simulate different intestinal immune states. Intestinal visceral hypersensitivity and histopathology were assessed using the abdominal withdrawal reflex (AWR) test and hematoxylin & eosin (H&E) staining, respectively. The expression of proinflammatory cytokines (IL-1β and IL-6) and TIM3 was analyzed by Western blot analysis and real-time PCR. Flow cytometry was applied to analyze the quantity, function, and membrane molecule TIM3 of the lamina propria dendritic cells (LPDCs). The regulatory effect of C. butyricum was verified in bone marrowderived dendritic cells by in vitro experiments. RESULTS The secretion of proinflammatory cytokines (IL-1β and IL-6) in mice with IBS was significantly increased compared with that of the control group, which suggested that the intestinal mucosa in mice with IBS was in a low-grade inflammatory state. The expression of CD11C+CD80+ and CD11c+TIM3+ in intestinal LPDCs in mice with IBS increased significantly. Meanwhile, the cytokines (IL-1β and IL-6) were significantly reduced after the intervention with probiotic C. butyricum. The amount and function of LPDCs and the TIM3 on the surface of the LPDCs were decreased with the alleviation of the intestinal inflammatory response. CONCLUSION The results suggest that C. butyricum regulates the amount and functional status of LPDCs in the intestinal mucosa of mice with IBS, and therefore modulates the local immune response in the intestine. | Qin Zhao Wen-Rong Yang Xiao-Hong Wang Gai-Qin Li Lei-Qi Xu Xiao Cui Yang Liu Xiu-Li Zuo | 2019 | World Journal of Gastroenterology2019,25,36: | 20 |
| 10 | Efects of a bioartificial liver support system on a cetaminophen-induced acute liver failure canines显示文摘Seeinvitedcommentaryonpage286Subjectheadingsliversupportsystem;acuteliverfailure;canines;porcinehepatocytes;bioartificiallive... | XUE Yi Long 1, ZHAO Shi Feng 2, ZHANG Zuo Yun 1, WANG Yue Feng 1, LI Xin Jian 1, HUANG Xiao Qiang 3, LUO Yun 1, HUANG Ying Cai 4 and LIU Cheng Gui 1 | 1999 | World Journal of Gastroenterology1999,5,4: | 19 |
| 11 | Immunoregulatory effects of Tripterygium wilfordii Hook Fand its extracts in clinical practice显示文摘Tripterygium wilfordii Hook F (TwHF) and its extracts have long been used for the treatment of rheumatoid arthritis, autoimmune diseases, and kidney disease due to their anti-inflammatory, immunoregulatory, and other pharmacological effects. However, the clinical immunoregulatory effects of TwHF and its extracts remain unclear, so we reviewed their effects for use in clinical practice. This review provides a comprehensive summary of the recent literature on the immunoregulatory effects of TwHF and its extracts in clinical studies. TwHF and its extracts affect the proliferation and activation of T and B cells;ratio of T cell subsets;inflammatory response of monocytes, macrophages, and immunoglobulins;and secretion of many cytokines. Together, these effects dictate immune function in a variety of diseases. TwHF and its extracts can be used alone or in combination with existing therapies against many immune disorders through immunomodulation. | Dan Luo Zhengyun Zuo Hongyan Zhao Yong Tan Cheng Xiao | 2019 | Frontiers of Medicine2019,13,5: | 19 |
| 12 | Chinese expert consensus statement on the diagnosis and treatment of fulminant myocarditis显示文摘Fulminant myocarditis is primarily caused by infection with any number of a variety of viruses. It arises quickly, progresses rapidly, and may lead to severe heart failure or circulatory failure presenting as rapid-onset hypotension and cardiogenic shock,with mortality rates as high as 50%–70%. Most importantly, there are no treatment options, guidelines or an expert consensus statement. Here, we provide the first expert consensus, the Chinese Society of Cardiology Expert Consensus Statement on the Diagnosis and Treatment of Fulminant Myocarditis, based on data from our recent clinical trial(NCT03268642). In this statement, we describe the clinical features and diagnostic criteria of fulminant myocarditis, and importantly, for the first time,we describe a new treatment regimen termed life support-based comprehensive treatment regimen. The core content of this treatment regimen includes(i) mechanical life support(applications of mechanical respirators and circulatory support systems,including intraaortic balloon pump and extracorporeal membrane oxygenation),(ii) immunological modulation by using sufficient doses of glucocorticoid, immunoglobulin and(iii) antiviral reagents using neuraminidase inhibitor. The proper application of this treatment regimen may and has helped to save the lives of many patients with fulminant myocarditis. | Daowen Wang Sheng Li Jiangang Jiang Jiangtao Yan Chunxia Zhao Yan Wang Yexin Ma Hesong Zeng Xiaomei Guo Hong Wang Jiarong Tang Houjuan Zuo Li Lin Guanglin Cui Section of Precision Medicine Group of Chinese Society of Cardiology,Editorial Board of Chinese Journal of Cardiology &Working Group of Adult Fulminant Myocarditis | 2019 | Science China(Life Sciences)2019,62,2: | 18 |
| 13 | Downstaging and resection of hepatocellular carcinoma in patients with extrahepatic metastases after stereotactic therapy显示文摘Background:A combination of tyrosine kinase inhibitors(TKIs)and anti-PD-1 antibodies with local regional therapy has elicited yield substantial clinical benefits in patients who have hepatocellular carcinoma(HCC)with extrahepatic metastases.Using this treatment strategy to convert HCC patients with extrahepatic metastases from unresectable to resectable has not yet been reported.Methods:Consecutive hepatocellular carcinoma patients with extrahepatic metastases who received first-line therapy with a combination of TKIs and anti-PD-1 antibodies and at least one local regional therapy were analysed.Results:Nine patients with localized disease who received first-line systemic therapy were enrolled.At baseline,all of them had oligometastatic disease,namely,Barcelona Clinic Liver Cancer stage C(or Chinese Liver Cancer stage IIIB).The most common treatment administered was lenvatinib plus anti-PD-1 antibody and transarterial chemoembolization,and the median time span from systemic therapy to surgery was 3.2(IQR,2.8-6.2)months.Three patients achieved a pathological complete response.Six patients underwent laparoscopic surgery,and the other 3 patients underwent open surgery.After a median follow-up of 10.2(IQR,8.6-20.0)months,7 patients survived without disease recurrence,and 2 experienced tumour recurrence.All patients had any-grade AEs,and 55.6%of the patients experienced grade 3 AEs.Fatigue was the most common AE,followed by elevated aminotransferase levels and hypertension.Conclusions:Stereotactic therapy is a feasible conversion therapy for HCC patients with extrahepatic metastases to become resectable.This is the first study to analyse therapeutic outcomes of patients receiving these therapies for HCC with extrahepatic metastases. | Xiaobo Yang Haifeng Xu Bangyou Zuo Xu Yang Jin Bian Junyu Long Dongxu Wang Junwei Zhang Cong Ning Yanyu Wang Ziyu Xun Yunchao Wang Xin Lu Yilei Mao Xinting Sang Haitao Zhao | 2021 | Hepatobiliary Surgery and Nutrition2021,10,4: | 17 |
| 14 | Ocular higher-order aberrations features analysis after corneal refractive surgery显示文摘最近的研究显示出的背景那视觉表演可能被眼睛的错误在角膜的折射外科以后影响,并且试着最小化它。这研究是在波前错误的更高的顺序和 32 与类似的折射力量看的他们这未来的研究包含了的 characteristics.Method 的分析上在 situ keratomileusis (LASIK ) 调查 photorefractive keratectomy (PRK ) 和激光的效果(-5.0 D 到 -6.0 D 外科手术前地) 。LASIK 和 PRK 与 6 公里直径的一样的参数被执行光地区和 7 公里直径转变地区脱离。波前错误用外科手术前地跟踪技术的一条光线被测试, 3 月 postoperatively.Three 大小为每个条件被获得;根平均数摆平波前错误(RMS ) ,为全面波前错误的值和 Zernike 错误的每份订单用 Matlab 软件被分析。2 尾巴 t 测试被用于统计 analysis.Results 全面更高的顺序错误被增加从(0.551 吗?? | WANG Yan ZHAO Kan-xing HE Ji-chang JIN Ying ZUO Tong | 2007 | Chinese Medical Journal2007,,4: | 16 |
| 15 | Microwave Exposure Impairs Synaptic Plasticity in the Rat Hippocampus and PC12 Cells through Over-activation of the NMDA Receptor Signaling Pathway显示文摘Objective The aim of this study is to investigate whether microwave exposure would affect the N-methyl-D-aspartate receptor(NMDAR) signaling pathway to establish whether this plays a role in synaptic plasticity impairment. Methods 48 male Wistar rats were exposed to 30 m W/cm2 microwave for 10 min every other day for three times. Hippocampal structure was observed through H&E staining and transmission electron microscope. PC12 cells were exposed to 30 m W/cm2 microwave for 5 min and the synapse morphology was visualized with scanning electron microscope and atomic force microscope. The release of amino acid neurotransmitters and calcium influx were detected. The expressions of several key NMDAR signaling molecules were evaluated. Results Microwave exposure caused injury in rat hippocampal structure and PC12 cells, especially the structure and quantity of synapses. The ratio of glutamic acid and gamma-aminobutyric acid neurotransmitters was increased and the intracellular calcium level was elevated in PC12 cells. A significant change in NMDAR subunits(NR1, NR2 A, and NR2B) and related signaling molecules(Ca2+/calmodulin-dependent kinase II gamma and phosphorylated c AMP-response element binding protein) were examined. Conclusion 30 m W/cm2 microwave exposure resulted in alterations of synaptic structure, amino acid neurotransmitter release and calcium influx. NMDAR signaling molecules were closely associated with impaired synaptic plasticity. | XIONG Lu SUN Cheng Feng ZHANG Jing GAO Ya Bing WANG Li Feng ZUO Hong Yan WANG Shui Ming ZHOU Hong Mei XU Xin Ping DONG Ji YAO Bin Wei ZHAO Li PENG Rui Yun | 2015 | Biomedical and Environmental Sciences2015,28,1: | 16 |
| 16 | Probiotics increase T regulatory cells and reduce severity of experimental colitis in mice显示文摘AIM:To investigate the effect of probiotics on regulating T regulatory cells and reducing the severity of experimental colitis in mice. METHODS:Forty C57/BL mice were randomly divided into four groups.Colitis was induced in the mice using 2,4,6-trinitrobenzene sulfonic acid(TNBS).After 10-d treatment with Bifico capsules(combined bifidobacterium,lactobacillus and enterococcus),body weight,colonic weight,colonic weight index,length of colon,and histological scores were evaluated.CD4+CD25+Foxp3+T cell in mesenteric lymph nodes were measured by flow cytometry,and cytokines in colonic tissue homogenateswere analyzed by a cytometric bead array. RESULTS:The colonic weight index and the colonic weight of colitis mice treated with Bifico were lower than that of TNBS-induced mice without treatment. However,colonic length and percent of body weight amplification were higher than in TNBS-induced mice without treatment.Compared with TNBS-induced mice without treatment,the level of CD4+CD25+Foxp3+T cells in mesenteric lymph nodes,the expression of interleukin(IL)-2,IL-4 and IL-10 in colonic tissues from colitis mice treated with Bifico were upregulated,and tumor necrosis factor-αand interferon-γwere downregulated. CONCLUSION:Probiotics effectively treat experimental colitis by increasing CD4+CD25+Foxp3+T cell and regulating the balance of Th1 and Th2 cytokines in the colonic mucosa. | Hai-Mei Zhao Xiao-Ying Huang Zhi-Qin Zuo Qi-Hong Pan Mei-Ying Ao Feng Zhou Hong-Ning Liu Zhi-Yong Liu Duan-Yong Liu | 2013 | World Journal of Gastroenterology2013,19,5: | 15 |
| 17 | Bone morphogenetic protein-7 represses hepatic stellate cell activation and liver fibrosis via regulation of TGF-β/Smad signaling pathway显示文摘BACKGROUND Liver fibrosis is a refractory disease whose persistence can eventually induce cirrhosis or even liver cancer.Early liver fibrosis is reversible by intervention.As a member of the transforming growth factor-beta(TGF-β)superfamily,bone morphogenetic protein 7(BMP7)has anti-liver fibrosis functions.However,little is known about BMP7 expression changes and its potential regulatory mechanism as well as the relationship between BMP7 and TGF-βduring liver fibrosis.In addition,the mechanism underlying the anti-liver fibrosis function of BMP7 needs to be further explored.AIM To investigate changes in the dynamic expression of BMP7 during liver fibrosis,interactions between BMP7 and TGF-β1,and possible mechanisms underlying the anti-liver fibrosis function of BMP7.METHODS Changes in BMP7 expression during liver fibrosis and the interaction between BMP7 and TGF-β1 in mice were observed.Exogenous BMP7 was used to treat mouse primary hepatic stellate cells(HSCs)to observe its effect on activation,migration,and proliferation of HSCs and explore the possible mechanism underlying the anti-liver fibrosis function of BMP7.Mice with liver fibrosis received exogenous BMP7 intervention to observe improvement of liver fibrosis by using Masson’s trichrome staining and detecting the expression of the HSC activation indicator alpha-smooth muscle actin(α-SMA)and the collagen formation associated protein type I collagen(Col I).Changes in the dynamic expression of BMP7 during liver fibrosis in the human body were further observed.RESULTS In the process of liver fibrosis induced by carbon tetrachloride(CCl4)in mice,BMP7 protein expression first increased,followed by a decrease;there was a similar trend in the human body.This process was accompanied by a sustained increase in TGF-β1 protein expression.In vitro experiment results showed that TGF-β1 inhibited BMP7 expression in a time-and dose-dependent manner.In contrast,high doses of exogenous BMP7 inhibited TGF-β1-induced activation,migration,and proliferation of HSCs;this inhibitory effect was associated with upregulation of pSmad1/5/8 and downregulation of phosphorylation of Smad3 and p38 by BMP7.In vivo experiment results showed that exogenous BMP7 improved liver fibrosis in mice.CONCLUSION During liver fibrosis,BMP7 protein expression first increases and then decreases.This changing trend is associated with inhibition of BMP7 expression by sustained upregulation of TGF-β1 in a time-and dose-dependent manner.Exogenous BMP7 could selectively regulate TGF-β/Smad pathway-associated factors to inhibit activation,migration,and proliferation of HSCs and exert antiliver fibrosis functions.Exogenous BMP7 has the potential to be used as an antiliver fibrosis drug. | Gao-Liang Zou Shi Zuo Shuang Lu Rui-Han Hu Yin-Ying Lu Jing Yang Kai-Sheng Deng Ye-Ting Wu Mao Mu Juan-Juan Zhu Jing-Zhang Zeng Bao-Fang Zhang Xian Wu Xue-Ke Zhao Hai-Yang Li | 2019 | World Journal of Gastroenterology2019,25,30: | 15 |
| 18 | Progress of the key materials for organic solar cells显示文摘Organic solar cells have attracted academic and industrial interests due to the advantages like lightweight,flexibility and roll-to-roll fabrication.Nowadays,18%power conversion efficiency has been achieved in the state-of-the-art organic solar cells.The recent rapid progress in organic solar cells relies on the continuously emerging new materials and device fabrication technologies,and the deep understanding on film morphology,molecular packing and device physics.Donor and acceptor materials are the key materials for organic solar cells since they determine the device performance.The past 25 years have witnessed an odyssey in developing high-performance donors and acceptors.In this review,we focus on those star materials and milestone work,and introduce the molecular structure evolution of key materials.These key materials include homopolymer donors,D-A copolymer donors,A-D-A small molecular donors,fullerene acceptors and nonfullerene acceptors.At last,we outlook the challenges and very important directions in key materials development. | Yang Tong Zuo Xiao Xiaoyan Du Chuantian Zuo Yuelong Li Menglan Lv Yongbo Yuan Chenyi Yi Feng Hao Yong Hua Ting Lei Qianqian Lin Kuan Sun Dewei Zhao Chunhui Duan Xiangfeng Shao Wei Li Hin-Lap Yip Zhengguo Xiaol Bin Zhang Qingzhen Bian Yuanhang Cheng Shengjian Liu Ming Cheng Zhiwen Jin Shangfeng Yang Liming Ding | 2020 | Science China Chemistry2020,63,6: | 15 |
| 19 | Periplocoside A prevents experimental autoimmune encephalomyelitis by suppressing IL-17 production and inhibits differentiation of Th17 cells显示文摘 | Jing ZHANGt Jia NI Zhen-hua CHEN Xin LI Ru-jun ZHANG Wei TANG Wei-min ZHAO Yi-fu YANG Jian-ping ZUO | 2009 | Acta Pharmacologica Sinica2009,30,8: | 14 |
| 20 | CT and MR imaging patterns for pancreatic carcinoma invading the extrapancreatic neural plexus (Part Ⅱ):Imaging of pancreatic carcinoma nerve invasion显示文摘Computed tomography (CT) and magnetic resonance imaging (MRI) are excellent modalities which have the ability to detect,depict and stage the nerve invasion associated with pancreatic carcinoma.The aim of this article is to review the CT and MR patterns of pancreatic carcinoma invading the extrapancreatic neural plexus and thus provide useful information which could help the choice of treatment methods.Pancreatic carcinoma is a common malignant neoplasm with a high mortality rate.There are many factors influencing the prognosis and treatment options for those patients suffering from pancreatic carcinoma,such as lymphatic metastasis,adjacent organs or tissue invasion,etc.Among these factors,extrapancreatic neural plexus invasion is recognized as an important factor when considering the management of the patients. | Hou-Dong Zuo,Wei Tang,Xiao-Ming Zhang,Qiong-Hui Zhao,Bo Xiao,Sichuan Key Laboratory of Medical Imaging,Department of Radiology,Affiliated Hospital of North Sichuan Medical College,Nanchong 637000,Sichuan Province,China | 2012 | World Journal of Radiology2012,4,1: | 13 |