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1Effects of AT1 receptor antagonist,Iosartan,on rat hepatic fibrosis induced by CCl_4显示文摘AIM To investigate effect of losartan,an AT1receptor antagonist,on hepatic fibrosis induced byCCl;and to determine whether or not AT1receptors are expressed on hepatic stellate cells,METHODS AND RESULTS Fifty male Sprague-Dawley rats,weighing(180±20)g,wererandomized into five groups(control group,modelgroup,and three losartan treated groups),inwhich all rats were given the subcutaneousinjection of 40% CCl4(every 3 days for 6 weeks)except for rats of control group.Rats of losartan-treated groups were treated with losartan(20 mg/kg,10 mg/kg,5 mg/kg,daily gavage),After 6weeks liver tissue and serum samples of all ratswere examined.Serum hyaluronic acid(HA),procollagen typeⅢ(PCⅢ)were detected byradioimmunoassays,van Giesion collagen stainingwas used to evaluate the extracellular matrix of ratswith liver fibrosis.The expression of AT1receptors,transforming growth factor-beta(TGF-β),and alpha-smooth muscle actin(a-SMA)inliver tissue were determined byimmunohistochemical techniques.Compared withmodel group,serum ALT and AST of losartan-treated groups were significantly reduced(t=4.20,P<0.01 and t=4.57,P<0.01).Serum HAand PCⅢalso had significant differences(t=3.53,P<0.01 and t=2.20,P<0.05).Thedegree of fibrosis was improved by losartan and correlated with the expressions of AT1 receptors,TGF-β,and α-SMA in liver tissue.CONCLUSION AT1 receptor antagonist,losartan,could limit the progression of the hepatic fibrosisinduced by CCl4.The mechanism may be related tothe decrease in the expression of AT1 receptorsand TGF-β,ameliorating the injury of hepatocytes;activation of local renin-angiotensin system mightrelate to hepatic fibrosis;and during progressionof fibrosis,activated hepatic stellate cells mightexpress AT1 receptors.Hong Shan Wei Ding Guo Li Han Ming Lu Yu Tao Zhan Zhi Rong Wang Xin Huang Jing Zhang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China 2000World Journal of Gastroenterology2000,6,4:42
2The regulatory role of AT 1 receptor on activated HSCs in hepat,c fibrogenesis,effects of RAS inhibitors on hepatic fibrosis induced by CCl_4显示文摘AIM To assess the effect of ACE inhibitor andAng Ⅱ type Ⅰ(AT1)receptor antagonist inpreventing hepatic fibrosis caused by CCl4administration in rats;to investigate whether ornot there are expression of AT 1 receptors onhepatic stellate cells;and to observe the effectof Ang Ⅱ on proliferation and ECM synthesis ofcultured HSCs.METHODS Studies were conducted in maleSprague-Dawley rats.Except for thehepatofibrotic model group and the controlgroup,in three treated groups,either enalapril(5 mg/kg),or Iosartan(10 mg/kg),or enalapril+Iosartan were given to the fibrotic rats bydaily gavage,and saline vehicle was given tomodel and normal control rats.After 6 weeks,liver fibrosis was assessed directly by hepaticmorphometric analysis,which has beenconsidered the gold standard for thequantification of fibrosis.The expressions of AT1 receptors and(α-mooth muscle actin,α-SMA)in liver tissue or isolated hepatic stellate cells(HSCs)were detected by immunohistochemicaltechniques.The effect of Ang Ⅱ on HSCproliferation was determined by MTT method.Effect of Ang Ⅱ on collagen synthesis of HSCswas determined by 3H-proline incorporation.RESULTS Contrasted to the fibrosis in rats ofthe model group,groups of rats treated with either enalapril or Iosartan,or a combination oftwo drugs showed a limited expansion of theinterstitium(4.23±3.70 vs 11.22±4.79,P<0.05),but no difference was observedamong three treated groups(5.38±3.43,4.96±2.96,4.23±2.70,P>0.05).Expression of AT 1receptors was found in fibrotic interstitium offibrotic rats,whereas in normal control rats theywere limited to vasculature only to a very slightdegree.AT 1 receptors were also expressed onactivated HSCs in the culture.At concentrationsfrom 10-9to 10-5mol/L,Ang Ⅱ stimulated HSCproliferation in culture in a dose-dependentmanner.Increasing Ang Ⅱ concentrationsproduced corresponding increases in 3H-prolineincorporation.Differences among groups were significant.CONCLUSION Angiotensin-converting enzyme inhibitors and AT I blocker may slow the progression of hepatic fibrosis; activated HSCs express AT 1 receptors, and Ang Ⅱ can stimulate the proliferation and collagen synthesis of HSCs in a dose-dependent manner; and activation of RAS may be related to hepatic fibrogenesis induced by CCI4.Hong Shan Wei Han Ming Lu Ding Guo Li Yu Tao Zhan Zhi Rong Wang Xin Huang Ji Lin Cheng Qin Fang Xu Department of Gastroenterology,Xinhua Hospital,Shanghai Second Medical University,Shanghai 200092,China 2000World Journal of Gastroenterology2000,6,6:27
3Suppression of Jasmonic Acid-Mediated Defense by Viral-Inducible MicroRNA319 Facilitates Virus Infection in Rice显示文摘MicroRNAs (miRNAs ) 是植物开发和主人病毒相互作用的枢轴的调节的人。然而,角色和涉及病毒的感染和主人危险性的特定的 miRNAs 的行动模式仍然保持大部分不清楚。在这研究,我们给那瑞斯看引起 miR319 的增加的累积,但是减少的破旧绝技病毒(RRSV ) 感染调整 miR319 的 TCP (TEOSINTE BRANCHED/CYCLOIDEA/PCF ) 的表示基因,特别 TCP21,在米饭植物。转基因的米饭植物 overexpressing miR319 或 downregulating TCP21 展出了像疾病的显型并且与野类型的植物比较显示出显著地更高的危险性到 RRSV。相反,仅仅温和的疾病症状在感染 RRSV 的线 overexpressing TCP21 并且特别在转基因的植物 overexpressing 被观察 miR319 抵抗的 TCP21。miR319 的 RRSV 感染和 overexpression 在米饭与 JA 生合成和信号相关的基因的 downregulated 表示一起引起了减少的内长的 jasmonic 酸(JA ) 层次。然而,有甲基 jasmonate 的米饭植物的治疗减轻了 RRSV 引起并且减少了病毒累积的疾病症状。一起拿,我们的结果建议由在米饭的 RRSV 感染的 miR319 的正式就职压制调停 JA 的防卫便于病毒感染和症状开发。Chao Zhang Zuomei Ding Kangcheng Wu Liang Yang Yang Li Zhen Yang Shan Shi Xiaojuan Liu Shanshan Zhao Zhirui Yang Yu Wang Luping Zheng Juan Wei Zhenguo Du Aihong Zhang Hongqin Miao Yi Li Zujian Wu Jianguo Wu 2016Molecular Plant2016,9,9:27
4Epithelioid angiomyolipoma of the liver:Cross-sectional imaging findings of 10 immunohistochemically-verified cases显示文摘AIM:To retrospectively evaluate the computed tomography(CT)/magnetic resonance imaging(MRI) imaging features of epithelioid angiomyolipoma of the liver(Epi-HAML),with pathology as a reference. METHODS:The CT/MRI findings(number,diameter, lobar location,and appearance of lesions)in a series of 10 patients with 12 pathologically proven epithelioid angiomyolipomas of the liver were retrospectively analyzed.The imaging features,including attenuation/ signal intensity characteristics,presence of fat, hypervascular,outer rim,and vessels within lesion, were evaluated and compared with that of non-Epi-HAML in 11 patients(13 lesions).The Fisher exact test was used to compare difference in probability of imaging features between the two types. RESULTS:For 21 patients,CT images of 15 patients and MR images of six patients were available.No patient underwent two examinations.For the 15 patients with a CT scan,all HAML lesions in the two groups(10 Epi-HAML and seven non-Epi-HAML) manifested as hypoattenuation.For the six patients with MRI,all lesions(two Epi-HAML and six non-Epi- HAML)were hypointense on T1WI(fat suppression)and hyperintense on T2WI.There were 10 non-Epi-HAML, but only two Epi-HAML lesions showed the presence offat,which significantly different between the two types (P=0.005).On the dynamic contrast enhancement (DCE)imaging,eight Epi-HAML,and 13 non-Epi lesions manifested as hypervascular.Punctate or curved vessels were displayed in 10 Epi-HAML as well as in nine non-Epi lesions and outer rim enhancement could be found with eight Epi-HAML as well as six non-Epi lesions. CONCLUSION:Little or no presence of adipose tissue was found to be an imaging feature of Epi-HAML,compared with the non-Epi type.In addition, hypervascularity with opacification of central punctiform or filiform vessels on DCE would be a characteristic enhancement pattern for Epi-HAML.Peng-Ju Xu Yan Shan Fu-Hua Yan Yuan Ji Ying Ding Mei-Lin Zhou 2009World Journal of Gastroenterology2009,15,36:24
5Weighted Boundedness for a Class of Rough Multilinear OperatorsYong DING Shan Zhen LU Department of Mathematics,Beijing Normal University,Beijing 100875,P.R.China E-mail:dingy@bnu.edu.cn lusz@bnu.edn.cn 2001Acta Mathematica Sinica,English Series2001,17,3:24
6Radiofrequency ablation of hepatocellular carcinoma sized> 3 and ≤ 5 cm: Is ablative margin of more than 1 cm justified?显示文摘AIM:To investigate whether an ablative margin(AM)>1.0 cm might reduce chance of recurrence for patients with hepatocellular carcinoma(HCC)tumors 3.1to 5.0 cm in size,compared with an AM of 0.5-1.0 cm.METHODS:From October 2005 to December 2012,936 consecutive patients with HCC who received radiofrequency ablation were screened.Of these,281 patients,each with a single primary HCC tumor of 3.1 to5.0 cm in size on its greatest diameter,were included in the study.Based on the AM width,we categorized patients into the 0.5-1.0 cm group and the>1.0 cm group.Local tumor progression(LTP)-free survival,intrahepatic distant recurrence(IDR)-free survival and overall survival(OS)rates were obtained using the Kaplan-Meier method.RESULTS:The 1-,2-,3-,4-,and 5-year LTP-free survival rates and IDR-free survival rates were significantly higher in the>1.0 cm group compared with the 0.5-1.0cm group(97.5%,86.3%,73.6%,49.5%and 26.4%vs 91.3%,78.4%,49.5%,27.8%,and 12.8%;95.1%,90.3%,77.0%,61.0%and 48.3%vs 95.2%,85.9%,62.6%,47.2%and 28.5%;P<0.05).The 1-,2-,3-,4-,and 5-year OS rates were 98.6%,91.5%,69.2%,56.0%and 42.2%,respectively,in the 0.5-1.0 cm group and 100%,98.9%,90.1%,68.7%and 57.4%,respectively,in the>1.0 cm group(P=0.010).There were no significant differences in complication rates between the two groups.Both univariate and multivariate analyses identified AM as an independent prognostic factor linked to LTP,IDR,and OS.CONCLUSION:For HCC tumors>3.0 cm and≤5.0cm,AM>1.0 cm could reduce chances of recurrence compared with AM of 0.5-1.0 cm,emphasizing the need for a more defensive strategy using AMs>1.0 cm for ablating HCC tumors of 3.1 to 5.0 cm.Shan Ke Xue-Mei Ding Xiao-Jun Qian Yi-Ming Zhou Bao-Xin Cao Kun Gao Wen-Bing Sun 2013World Journal of Gastroenterology2013,19,42:21
7Continuity of Higher Order Commutators on Certain Hardy SpacesDING Yong LU Shan Zhen Department of Mathematics,Beijing Normal University,Beijing 100875.P.R.China E-mail:dingy@bnu.edu.cn lusz@bnu.edu.cnZHANG Pu Department of Mathematics.Zhejiang University(at Xixi Campus).Hangzhou 310028,P.R.China,E-mail:zhpjj@263,net 2002Acta Mathematica Sinica,English Series2002,18,2:21
8Prevalence, awareness, treatment, and control of hypertension in the non-dialysis chronic kidney disease patients显示文摘ZHENG Ying CAI Guang-yan CHEN Xiang-mei FU Ping CHEN Jiang-hua DING Xiao-qiang YU Xue-qing LIN Hong-li LIU Jian XIE Ru-juan WANG Li-ning NI Zhao-hui LIU Fu-you YIN Ai-ping XING Chang-ying WANG Li SHI Wei LIU Jian-she HE Ya-ni DING Guo-hua LI Wen-ge WU Guang-li MIAO Li-ning CHEN Nan SU Zhen MEI Chang-lin ZHAO Jiu-yang GU Yong BAI Yun-kai LUO Hui-min LIN Shan CHEN Meng-hua GONG Li YANG Yi-bin YANG Xiao-ping LI Ying WAN Jian-xin WANG Nian-song LI Hai-ying XI Chun-sheng HAO Li XU Yan FANG Jing-ai LIU Bi-cheng LI Rong-shan WANG Rong ZHANG Jing-hong WANG Jian-qin LOU Tan-qi SHAO Feng-min MEI Feng LIU Zhi-hong YUAN Wei-jie SUN Shi-ren ZHANG Ling ZHOU Chun-hua CHEN Qin-kai JIA Shun-lian GONG Zhi-feng GUAN Guang-ju XIA Tian ZHONG Liang-bao 2013Chinese Medical Journal2013,,12:16
9Laparoscopic vs computerized tomography-guided radiofrequency ablation for large hepatic hemangiomas abutting the diaphragm显示文摘AIM: To compare safety and therapeutic efficacy of laparoscopic radiofrequency(RF) ablation vs computed tomography(CT)-guided RF ablation for large hepatic hemangiomas abutting the diaphragm.METHODS: We retrospectively reviewed our sequential experience of treating 51 large hepatic hemangiomas abutting the diaphragm in 51 patients by CT-guided or laparoscopic RF ablation due to either the presence of symptoms and/or the enlargement of hemangioma.Altogether, 24 hemangiomas were ablated via a CTguided percutaneous approach(CT-guided ablation group), and 27 hemangiomas were treated via a laparoscopic approach(laparoscopic ablation group).RESULTS: The mean diameter of the 51 hemangiomas was 9.6 ± 1.8 cm(range, 6.0-12.0 cm). There was nodifference in the diameter of hemangiomas between the two groups(P > 0.05). RF ablation was performed successfully in all patients. There was no difference in ablation times between groups(P > 0.05). There were 23 thoracic complications in 17 patients: 15(62.5%, 15/24) in the CT-guided ablation group and2(7.4%, 2/27) in the laparoscopic ablation group(P< 0.05). According to the Dindo-Clavien classification,two complications(pleural effusion and diaphragmatic rupture grade Ⅲ) were major in two patients. All others were minor(grade Ⅰ). Both major complications occurred in the CT-guided ablation group. The minor complications were treated successfully with conservative measures, and the two major complications underwent treatment by chest tube drainage and thoracoscopic surgery, respectively. Complete ablation was achieved in 91.7%(22/24) and 96.3%(26/27) in the CT-guided and the laparoscopic ablation groups,respectively(P > 0.05).CONCLUSION: Laparoscopic RF ablation therapy should be used as the first-line treatment option for large hepatic hemangiomas abutting the diaphragm.It avoids thermal injury to the diaphragm and reduces thoracic complications.Jun Gao Jian Kong Xue-Mei Ding Shan Ke Hai-Gang Niu Zong-Hai Xin Chun-Min Ning Shi-Gang Guo Xiao-Long Li Long Zhang Yong-Hong Dong Wen-Bing Sun 2015World Journal of Gastroenterology2015,21,19:16
10Double-balloon enteroscopy for obscure gastrointestinal bleeding: A single center experience in China显示文摘AIM: To evaluate the diagnostic value of double-balloon enteroscopy (DBE) for obscure gastrointestinal bleeding (OGIB). METHODS: The data about 75 OGIB patients who underwent DBE in January 2007-June 2009 in our hospital were retrospectively analyzed. RESULTS: DBE was successfully performed in all 75 patients without complication. Of the 75 patients, 44 (58.7%) had positive DBE findings, 22 had negative DBE findings but had potential bleeding at surgery and capsule endoscopy, etc . These 66 patients were finally diagnosed as OGIB which was most commonly caused by small bowel tumor (28.0%), angiodysplasia (18.7%) and Crohn’s disease (10.7%). Lesions occurred more frequently in proximal small bowel than in distal small bowel (49.3% vs 33.3%, P = 0.047). CONCLUSION: DBE is a safe, effective and accurate procedure for the diagnosis of OGIB.Chen, Li-Hua Chen, Wen-Guo Cao, Hai-Jun Zhang, Hong Shan, Guo-Dong Li, Lin Zhang, Bing-Ling Xu, Cheng-Fu Ding, Kai-Li Fang, Ying Cheng, Ying Wu, Chen-Jiao Xu, Guo-Qiang 2010World Journal of Gastroenterology2010,16,13:15
11Small molecule inhibitors reveal allosteric regulation of USP14 via steric blockade显示文摘The ubiquitin system is important for drug discovery,and the discovery of selective small-molecule inhibitors of deubiquitinating enzymes (DUBs) remains an active yet extremely challenging task. With a few exceptions,previously developed inhibitors have been found to bind the evolutionarily conserved catalytic centers of DUBs,resulting in poor selectivity. The small molecule IU1 was the first-ever specific inhibitor identified and exhibited surprisingly excellent selectivity for USP14 over other DUBs. However,the molecular mechanism for this selectivity was elusive. Herein,we report the high-resolution co-crystal structures of the catalytic domain of USP14 bound to IU1 and three IU1 derivatives. All the structures of these complexes indicate that IU1 and its analogs bind to a previously unknown steric binding site in USP14,thus blocking the access of the C-terminus of ubiquitin to the active site of USP14 and abrogating USP14 activity. Importantly,this steric site in USP14 is very unique,as suggested by structural alignments of USP14 with several known DUB X-ray structures. These results,in conjunction with biochemical characterization,Indicate a coherent steric blockade mechanism for U5P14 inhibition by compounds of the IU series. In light of the recent report of steric blockade of USP7 by FT671,this work suggests a potential generally applicable allosteric mechanism for the regulation of DUBs via steric blockade,as showcased by our discovery of IU1-248 which is 10-fold more potent than IU1.Yiwei Wang Yuxuan Jiang Shan Ding Jiawang Li Ningjing Song Yujing Ren Danning Hong Cai Wu Bin Li Feng Wang Wei He Jiawei Wang Ziqing Mei 2018Cell Research2018,28,12:15
12Radiofrequency ablation for hepatic hemangiomas: A consensus from a Chinese panel of experts显示文摘Recent studies have shown that radiofrequency(RF) ablation therapy is a safe, feasible, and effective procedure for hepatic hemangiomas, even huge hepatic hemangiomas. RF ablation has the following advantages in the treatment of hepatic hemangiomas: minimal invasiveness, definite efficacy, high safety, fast recovery, relatively simple operation, and wide applicability. It is necessary to formulate a widely accepted consensus among the experts in China who have extensive expertise and experience in the treatment of hepatic hemangiomas using RF ablation, which is important to standardize the application of RF ablation for the management of hepatic hemangiomas, regarding the selection of patients with suitable indications to receive RF ablation treatment, the technical details of the techniques, therapeutic effect evaluations, management of complications, etc. A final consensus by a Chinese panel of experts who have the expertise of using RF ablation to treat hepatic hemangiomas was reached by means of literature review, comprehensive discussion, and draft approval.Jun Gao Rui-Fang Fan Jia-Yin Yang Yan Cui Jian-Song Ji Kuan-Sheng Ma Xiao-Long Li Long Zhang Chong-Liang Xu Xin-Liang Kong Shan Ke Xue-Mei Ding Shao-Hong Wang Meng-Meng Yang Jin-Jin Song Bo Zhai Chun-Ming Nin Shi-Gang Guo Zong-Hai Xin Jun Lu Yong-Hong Dong Hua-Qiang Zhu Wen-Bing Sun 2017World Journal of Gastroenterology2017,23,39:15
13Slit-Robo signaling induces malignant transformation through Hakai-mediated E-cadherin degradation during colorectal epithelial cell carcinogenesis显示文摘指导暗示的裂缝家庭绑在环岛(Robo ) 受体并且调制房间移植。我们这里报导 Slit2 的那宫外的表情和上皮的癌房间招募了的表示 Robo1 colorectal 的 Robo1 或 recombinant Slit2 处理为 E-cadherin (电子恶棍) ubiquitination 和 lysosomal 降级,上皮间充质的转变(EMT ) ,和肿瘤生长和肝转移的 ubiquitin ligase Hakai,它被救由 Hakai 击倒。相反,内长的 Robo1 或对 Robo1 有约束力的 Slit2 的特定的封锁击倒阻止的电子恶棍降级和颠倒的 EMT,导致减少的肿瘤生长和肝转移。Robo1 的宫外的表示也在 Slit2 积极的人的胚胎的肾触发了恶意的转变 293 个房间。重要地, Slit2 和 Robo1 的表示显著地在 colorectal 癌病人与增加的变形风险和更差的全面幸存被联系。我们断定由 Slit2 的 Robo1 的那个约会在 colorectal 期间通过调停 Hakai 的电子恶棍 ubiquitination 和 lysosomal 降级导致恶意的转变上皮的房间 carcinogenesis。Wei-Jie Zhou Zhen H Geng Shan Chi Wenli Zhang Xiao-Feng Niu Shu-Jue Lan Li Ma Xuesong Yang Li-Jing Wang Yan-Qing Ding Jian-Guo Geng 2011Cell Research2011,21,4:14
14Epstein-Barr virus-associated gastric carcinoma: Evidence of age-dependence among a Mexican population显示文摘AIM: To investigate features of Epstein-Barr virus (EBV)-associated gastric carcinoma (EBVaGC) among a Mexican population.METHODS: Cases of primary gastric adenocarcinoma were retrieved from the files of the Departments of anatomic site of the gastric neoplasia was identified, and carcinomas were histologically classified as intestinal and diffuse types and subclassified as proposed by the Japanese Research Society for Gastric Cancer. EBV-encoded small non-polyadenylated RNA-1 (EBER-1)in situ hybridization was conducted to determine the presence of EBV in neoplastic cells.RESULTS: We studied 330 consecutive, non-selected,primary gastric carcinomas. Among these, there were173 male and 157 female patients (male/female ratio1.1/1). EBER-1 was detected in 24 (7.3%) cases (male/female ratio: 1.2/1). The mean age for the entire group was 58.1 years (range: 20-88 years), whereas the mean age for patients harboring EBER-1-positive gastric carcinomas was 65.3 years (range: 50-84 years). Age and histological type showed statistically significant differences, when EBER-1-positive and -negative gastric carcinomas were compared. EBER-1 was detected in hyperplastic- and dysplastic-gastric mucosa surrounding two EBER-1-negative carcinomas, respectively.CONCLUSION: Among Latin-American countries, Mexico has the lowest frequency of EBVaGC. Indeed, the Mexican population >50 years of age was selectively affected. Ethnic variations are responsible for the epidemiologic behavior of EBVaGC among the worldwide population.Roberto Herrera-Goepfert Suminori Akiba Chihaya Koriyama Shan Ding Edgardo Reyes Tetsuhiko Itoh Yoshie Minakami Yoshito Eizuru 2005World Journal of Gastroenterology2005,11,39:14
15Association of Chronic Kidney Disease with Coronary Heart Disease and Stroke Risks in Patients with Type 2 Diabetes Mellitus: An Observational Cross-sectional Study in Hangzhou, China显示文摘Xue Sun Jie He Xiao-Li Ji Yi-Ming Zhao Han-Yu Lou Xiao-Xiao Song Li-Zhen Shan Ying-Xiu Kang Wen-Heng Zeng Xiao-Hong Pang Song-Zhao Zhang Yue Ding Yue-Zhong Ren Peng-Fei Shan 2017Chinese Medical Journal2017,,1:14
16Novel and potent inhibitors targeting DHODH are broad-spectrum antivirals against RNA viruses including newly-emerged coronavirus SARS-CoV-2显示文摘Emerging and re-emerging RNA viruses occasionally cause epidemics and pandemics worldwide,such as the on-going outbreak of the novel coronavirus SARS-CoV-2.Herein,we identified two potent inhibitors of human DHODH,S312 and S416,with favorable drug-likeness and pharmacokinetic profiles,which all showed broad-spectrum antiviral effects against various RNA viruses,including influenza A virus,Zika virus,Ebola virus,and particularly against SARS-CoV-2.Notably,S416 is reported to be the most potent inhibitor so far with an EC5o of 17 nmol/L and an SI value of 10,505.88 in infec-ted cells.Our results are the first to validate that DHODH is an attractive host target through high antiviral efficacy in vivo and low virus replication in DHODH knock-out cells.This work demonstrates that both S312/S416 and old drugs(Leflunomide/Teriflunomide)with dual actions of antiviral and immuno-regulation may have clinical potentials to cure SARS-CoV-2 or other RNA viruses circulating worldwide,no matter such viruses are mutated or not.Rui Xiong Leike Zhang Shiliang Li Yuan Sun Minyi Ding Yong Wang Yongliang Zhao Yan Wu Weijuan Shang Xiaming Jiang Jiwei Shan Zihao Shen Yi Tong Liuxin Xu Yu Chen Yingle Liu Gang Zou Dimitri Lavillete Zhenjiang Zhao Rui Wang Lili Zhu Gengfu Xiao Ke Lan Honglin Li Ke Xu 2020Protein & Cell2020,11,10:14
17Role of gut microbiota via the gut-liver-brain axis in digestive diseases显示文摘The gut-brain axis is a bidirectional information interaction system between the central nervous system(CNS) and the gastrointestinal tract, in which gut microbiota plays a key role. The gut microbiota forms a complex network with the enteric nervous system, the autonomic nervous system, and the neuroendocrine and neuroimmunity of the CNS, which is called the microbiota-gut-brain axis. Due to the close anatomical and functional interaction of the gut-liver axis, the microbiota-gut-liver-brain axis has attracted increased attention in recent years. The microbiota-gut-liver-brain axis mediates the occurrence and development of many diseases, and it offers a direction for the research of disease treatment. In this review, we mainly discuss the role of the gut microbiota in the irritable bowel syndrome, inflammatory bowel disease, functional dyspepsia, non-alcoholic fatty liver disease, alcoholic liver disease, cirrhosis and hepatic encephalopathy via the gut-liver-brain axis, and the focus is to clarify the potential mechanisms and treatment of digestive diseases based on the further understanding of the microbiota-gut-liver-brain axis.Jian-Hong Ding Zhe Jin Xiao-Xu Yang Jun Lou Wei-Xi Shan Yan-Xia Hu Qian Du Qiu-Shi Liao Rui Xie Jing-Yu Xu 2020World Journal of Gastroenterology2020,26,40:13
18Expression changes of activin A in the development of hepatic fibrosis显示文摘AIM To examine the expression of activin A, amember of the transforming growth factor (TGF-β) superfamily, recently has been reported to beoverexpressed in liver cirrhosis, in the course ofcarbon tetrachloride-induced rat hepaticfibrosis.METHODS Hepatic fibrosis was induced in ratsby subcutaneous injections of 40% carbontetrachloride oily solution for a period of 1 to 7weeks. At the end of 1, 2, 3, 4, 5, 6 and 7 weeksafter carbon tetrachloride injections, the ratswere killed in group (6- 10 rats each time) forstudy. The activin A messenger RNA expressionand its protein localization were assessed bysemi-quantitative reverse transcriptionpolymerase chain reaction ( RT-PCR ) andimmunohistochemistry.RESULTS The normal rat liver expressedactivin A mRNA and protein, and its expressionwas transiently decreased and becameundetectable after carbon tetrachlorideinjections for 2 or 3 weeks and then increasedgradually. After injection of carbon tetrachloridefor 6 and 7 weeks, activin A mRNA and proteinexpressions were significantly enchanced in ratliver. Compared with that of the normal ratliver. Activin A mRNA expression levels in ratsreceiving carbon tetrachloride injections for 6and 7 weeks were 1.6 and 2.2 times that of thosein normal rat liver respectively (0.456±0.094 vs0.286± 0.0670, P<0.01; 0.620± 0.134 vs 0.286±± 0.0670, P<0.01). Immunohistochemistryshowed that activin A expressed in hepatocytesof normal liver, and its expression wasdecreased in rats receiving carbon tetrachloridefor 2 or 3 weeks. Compared with normal liver,activin A expression distribution mode changedin fibrotic liver, being increased significantly inhepatocytes around fibrotic areas.CONCLUSION Activin A expression wasincreased in latestage of hepatic fibrosis, andthis may be involved in hepatic fibrosisformation in this period.Xin Huang1 Ding Guo Li1 Zhi Rong Wang1 Hong Shan Wei1 Ji Lin Cheng1 Yu Tao Zhan1 Xin Zhou1 Qin Fang Xu1 Xin Li2 Han Ming Lu1 1Xinhua Hospital, Shanghai Second Medical University, Shanghai 200092, China2Ninth Hospital. Shanghai Second Medical University, Shanghai 200011. China 2001World Journal of Gastroenterology2001,7,1:12
19Changes of p53 protein blood level in esophageal cancer patients and normal subjects from a high incidence area in Henan,China显示文摘Changesofp53proteinbloodlevelinesophagealcancerpatientsandnormalsubjectsfromahighincidenceareainHenan,ChinaYUGuoQiang1,ZHOU...YU GuoQiang1, ZHOU Qi1, DING Ivan2, GAO ShanShan1, ZHENG ZuoYu1, ZOU JianXiang1, LI YongXin1 and WANG LiDong1 1998World Journal of Gastroenterology1998,4,4:12
20Retrospective evaluation of lymphatic and blood vessel invasion and Borrmann types in advanced proximal gastric cancer显示文摘BACKGROUND The Borrmann classification system is used to describe the macroscopic appearance of advanced gastric cancer,and Borrmann typeⅣdisease is independently associated with a poor prognosis.AIM To evaluate the prognostic significance of lymphatic and/or blood vessel invasion(LBVI)combined with the Borrmann type in advanced proximal gastric cancer(APGC).METHODS The clinicopathological and survival data of 440 patients with APGC who underwent curative surgery between 2005 and 2012 were retrospectively analyzed.RESULTS In these 440 patients,LBVI+status was associated with Borrmann typeⅣ,low histological grade,large tumor size,and advanced pT and pN status.The 5-year survival rate of LBVI+patients was significantly lower than that of LBVI– patients,although LBVI was not an independent prognostic factor in the multivariate analysis.No significant difference in the prognosis of patients with Borrmann typeⅢ/LBVI+disease and patients with Borrmann typeⅣdisease was observed.Therefore,we proposed a revised Borrmann typeⅣ(r-BorⅣ)as Borrmann typeⅢplus LBVI+,and found that r-BorⅣwas associated with poor prognosis in patients with APGC,which outweighed the prognostic significance of pT status.CONCLUSION LBVI is related to the prognosis of APGC,but is not an independent prognostic factor.LBVI status can be used to differentiate Borrmann typesⅢandⅣ,and the same approach can be used to treat r-BorⅣand Borrmann typeⅣ.Shan Gao Guo-Hui Cao Peng Ding Yang-Yang Zhao Peng Deng Bin Hou Kai Li Xiao-Fang Liu 2019World Journal of Gastrointestinal Oncology2019,11,8:11
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