维普中文期刊产品整合服务
125篇 您的检索式:作者名="Yan, Shanshan"
    题名 作者 年代 出处 被引量
1Ginkgo biloba extract improved cognitive and neurological functions of acute ischaemic stroke:a randomised controlled trial显示文摘Purpose To evaluate the efficacy and safety of Ginkgo biloba extract(GBE)in acute ischaemic stroke and its impact on the recurrence of vascular events.Methods We conducted a multicentre,prospective,randomised,open label,blinded,controlled clinical trial enrollingpatients with an onset of acute stroke within 7 days from five hospitals in China Jiangsu Province.Participants were assigned to the GBE group(450 mg GBE with 100 mg aspirin daily)or the control group(100 mg aspirin daily)for 6 months.The primary outcome was the decline in the Montreal Cognitive Assessment score at 6 months.Secondary outcomes were other neuropsychological tests of cognitive and neurological function,the the incidence of adverse events and vascular events.results 348 patients were enrolled:179 in the GBE group and 169 in the control group.With 18 patients lost to follow-up,the dropout rate was 5.17%.Admission data between two groups were similar,but in the GBE group there was a marked slow down in the decline in the Montreal Cognitive Assessment scores(−2.77±0.21 vs−1.99±0.23,P=0.0116(30 days);−3.34±0.24 vs−2.48±0.26,P=0.0165(90 days);−4.00±0.26 vs−2.71±0.26,P=0.0004(180 days))compared with controls.The National Institutes of Health Stroke Scale scores at 12 and 30 days,the modified Rankin Scale scores for independent rate at 30,90 and 180 days,and the Barthel Index scores at 30,90 and 180 days in the GBE group were significantly improved compared with controls.Improvements were also observedin GBE groups for Mini-Metal State Examination scores of 30,90 and 180 days,Webster's digit symbol test scores at 30 days and Executive Dysfunction Index scores at 30 and 180 days.No significant differences were seen in the incidence of adverse events or vascular events.conclusions We conclude that GBE in combination with aspirin treatment alleviated cognitive and neurological deficits after acute ischaemic stroke without increasing the incidence of vascular events.Shanshan Li Xinjiang Zhang Qi Fang Junshan Zhou Meijuan Zhang Hui Wang Yan Chen Biyun Xu Yanfeng Wu Lai Qian Yun Xu 2017Stroke & Vascular Neurology2017,2,4:25
2Chemotherapy-induced intestinal inflammatory responses are mediated by exosome secretion of double-strand DNA via AIM2 inflammasome activation显示文摘化疗经常被知道导致严重的胃肠的道毒性,但是内在的机制仍然保持不清楚。这研究作为一个代表性的代理人认为广泛地应用的细胞毒素的代理人是 irinotecan (CPT-11 ) 并且证明治疗从说明混合物的限制剂量的肠的毒性的肠导致双海滨 DNA 的巨大的版本。明确地,通过 exosome 分泌物释放的 self-DNA 进入天生的有免疫力的房间的 cytosol 并且激活 AIM2 (在黑瘤 2 不在) inflammasome。这导致成熟 IL-1 和 IL-18 分泌物并且导致肠的 mucositis 和迟了发作的腹泻。有趣地,在 AIM2 缺乏的老鼠或由象镇静药那样的一个药理学禁止者,没有影响 CPT-11 的 anticancer 功效, AIM2 发信号的废除显著地减少导致药的腹泻的发生。这些调查结果提供化疗怎么触发引起肠的毒性的天生的有免疫力的回答的机械学的卓见,并且揭示维持反瘤效果,但是围绕联系不利煽动性的反应的新化疗政体。Lian, Qiaoshi Xu, Jun Yan, Shanshan Huang, Min Ding, Honghua Sun, Xiaoyu Bi, Aiwei Ding, Jian Sun, Bing Geng, Meiyu 2017Cell Research2017,27,6:18
3Role of contrast-enhanced ultrasonography in percutaneous radiofrequency ablation of liver metastases and efficacy evaluation显示文摘Objective: To retrospectively investigate the role of contrast-enhanced ultrasonography (CEUS) in percutaneous radiofrequency ablation (RFA) in patients with liver metastases and evaluate the therapeutic efficacy of RFA assisted by CEUS. Methods: From May 2004 to September 2010, 136 patients with 219 liver metastatic lesions received CEUS examination 1 h before RFA (CEUS group), and other 126 patients with 216 lesions without CEUS examination in the earlier period were served as a historical control group. The mean tumor size was 3.2 cm and the mean tumor number was 1.6 in the CEUS group, while 3.4 cm and 1.7 in the control group, respectively (P>0.05). The clinical characteristics, recurrence results and survival outcomes were compared between two groups. Results: In the CEUS group, two isoechoic tumors were not demonstrated on unenhanced ultrasonography (US), and 63 (47%) of 134 tumors examined with CEUS were 0.3 cm larger than with unenhanced US. Furthermore, in 18.4% of 136 patients, additional 1-3 tumors were detected on CEUS. The CEUS group showed higher early tumor necrosis and lower intrahepatic recurrence than the control group. The 3-year overall survival (OS) rate and the 3-year local recurrence-free survival (LRFS) rate in the CEUS group were 50.1% and 38.3%, in contrast to 25.3% and 19.3% in the control group, respectively (P=0.002 and P<0.001). Conclusions: CEUS provides important information for RFA treatment in patients with liver metastases and better therapeutic effect could be attained.Jie Wu Wei Yang Shanshan Yin Jinyu Wu Wei Wu Kun Yan Minhua Chen 2013Chinese Journal of Cancer Research2013,25,2:17
4Evaluation of contrast-enhanced ultrasound for diagnosis of dysplastic nodules with a focus of hepatocellular carcinoma in liver cirrhosis patients显示文摘Objective: To compare the enhancement features of dysplastic nodules with a focus of hepatocellular carcinoma(DN-HCC) versus HCC and regenerative nodules(RN) in cirrhotic patients.Methods: One hundred and ninety-three cirrhotic patients were enrolled in this study; they had 215 focal liver lesions, 1.0-3.5 cm in size, which were examined using contrast-enhanced ultrasound(CEUS) with Sono Vue?and diagnosed as HCC, RN or DN-HCC by biopsy. Samples were obtained using 18-gauge needles in the different enhanced areas. The enhancement features of DN-HCC, HCC and RN were evaluated.Results: There were 86 HCC lesions, 102 RN lesions, and 27 DN-HCC lesions diagnosed by biopsy. Of 86 HCC lesions, 87.2%(75/86) showed complete enhancement during the arterial phase, and 12.8%(11/86) had inhomogeneous enhancement, with no enhancement in the central area during the arterial phase; 100%(86/86) exhibited washout during the late phase. Of 102 RN lesions, 95.1%(97/102) had delayed or simultaneous enhancement during the arterial phase, and 4.9%(5/102) displayed slight enhancement during the arterial phase; 26.5%(27/102) exhibited washout and 73.5%(75/102) exhibited no washout during the late phase. In 27 DN-HCC lesions, only part of the lesions enhanced during the arterial phase and washed out during the late phase; the other areas had delayed or simultaneous enhancement during the arterial phase, and 29.6%(8/27) exhibited slight washout in the late phase. In 86 HCCs, the pathological feature was HCC in the enhanced area of 75 lesions, hepatocellular fatty degeneration in the slightly enhanced area of 7 lesions, and hepatocellular necrosis in the unenhanced area and HCC in the enhanced area of 4 lesions. In 102 RNs, the pathological diagnosis was hepatocyte proliferation with or without fatty degeneration. In 27 DN-HCCs, the pathological feature was HCC in the enhanced area and hepatocyte regeneration in the unenhanced area.Conclusions: CEUS is useful for the diagnosis of focal liver lesions in cirrhotic patients. CEUS can help determine the progression from RN to DN-HCC to HCC by analyzing the hemodynamics. CEUS can promote the diagnostic accuracy of a biopsy by providing more accurate information on the site of the biopsy.Wei Wu Minhua Chen Kun Yan Yin Dai Shanshan Yin Wei Yang Zhihui Fan 2015Chinese Journal of Cancer Research2015,27,1:15
5Effect of contrast-enhanced ultrasound on differential diagnosis of intrahepatic cholangiocarcinoma and arterial phase enhanced hepatic inflammatory lesions显示文摘Objective: To investigate differential diagnosis between intrahepatic cholangiocarcinoma(ICC) and arterial phase enhanced hepatic inflammatory lesions in patients without liver cirrhosis using contrast-enhanced ultrasound(CEUS).Methods: ICC and hepatic inflammatory lesions cases with CEUS and pathological diagnosis between Sep 2013 and Oct 2016 were investigated retrospectively. Imaging features of conventional ultrasound and CEUS were analyzed. The parameters of time intensity curve(TIC), including the arrival time, peak intensity(PI) in the lesions, the starting time for washout, and the intensity difference at 3 min(ΔI_3) after contrast agent infection between the lesion and the liver parenchyma, were compared between ICC and hepatic inflammatory lesions.Results: Twenty-five ICC and fifteen inflammatory patients were included in this study. Seventeen ICC(68.0%)and two inflammatory cases(13.3%) showed bile duct dilatation on conventional ultrasound. Using CEUS, three ICC cases(12.0%) were misdiagnosed as inflammatory lesions and three inflammatory lesions(20.0%) as ICC; two ICC(8.0%) and one inflammatory case(6.7%) could not be made definite diagnosis. Washout started at 34.5±3.5 s and 61.5±12.9 s for ICC and inflammatory lesions respectively(P<0.001). The intensity difference between lesion and liver parenchyma at 3 min after contrast agent injection was 10.8±3.1 dB in ICC and 4.2±2.3 dB in inflammatory group(P<0.001). The sensitivity and specificity differentiating ICC and inflammatory lesions were76% and 87% if the cut-off value of the intensity difference was 7.7 d B.Conclusions: Combined with TIC analysis, and particularly with the characteristic of the early-starting and obvious washout in ICC, CEUS can be useful in differential diagnosis between hepatic inflammatory lesions and ICC.Shanshan Yin Qiuli Cui Kun Yan Wei Yang Wei Wu Liping Bao Minhua Chen 2017Chinese Journal of Cancer Research2017,29,3:13
6Factors Associated with Thrombolysis Outcome in Ischemic Stroke Patients with Atrial Fibrillation显示文摘The outcome of early intravenous thrombolysis for ischemic stroke in patients with atrial fibrillation(AF)is worse than that without thrombosis. How to increase the efficacy of intravenous thrombolysis for AF-related ischemic stroke remains largely unknown. In this study, we investigated factors that influence the effect of intravenous thrombolysis in these patients. Our results showed that thrombolysis was independently associated with a favorable outcome(P \ 0.001) and did not influence the mortality of AF-related ischemic stroke, although it increased the risk of hemorrhage within 24 h after treatment. Risk factors for a poor outcome at admission were:heart failure(P = 0.045); high systolic pressure(P = 0.039); high blood glucose(P = 0.030); and a high National Institutes of Health Stroke Scale(NIHSS) score(P \ 0.001). Moreover, high systolic pressure at admission(P = 0.007), high blood glucose(P = 0.027), and a high NIHSS score(P \ 0.001) were independent risk factors for mortality at 3 months. Besides thrombolysis, a high NIHSS score(P = 0.006) and warfarin taken within 48 h before stroke onset(P = 0.032) were also independent risk factors for symptomatic hemorrhage within 24 h after treatment. Ischemic stroke patients with AF benefited from intravenous thrombolysis with recombinant tissue plasminogen activator within 4.5 h after stroke.Qiuyun Zhao Xiaobo Li Wanli Dong Min Ye Yongjun Cao Meijuan Zhang Qiantao Cheng Junshan Zhou Guofang Chen Ming Yu Shanshan Hong Xiue Wei Bei Wang Guiyun Cui Peng Zhang Hong Ding Rongzhen Xu Yan Chen Yun Xu 2016Neuroscience Bulletin2016,32,2:13
7Hypocrellin A-based photodynamic action induces apoptosis in A549 cells through ROS-mediated mitochondrial signaling pathway显示文摘Over recent decades, many studies have reported that hypocrellin A(HA) can eliminate cancer cells with proper irradiation in several cancer cell lines. However, the precise molecular mechanism underlying its anticancer effect has not been fully defined. HA-mediated cytotoxicity and apoptosis in human lung adenocarcinoma A549 cells were evaluated after photodynamic therapy(PDT). A temporal quantitative proteomics approach by isobaric tag for relative and absolute quantitation(iTRAQ) 2 D liquid chromatography with tandem mass spectrometric(LC–MS/MS) was introduced to help clarify molecular cytotoxic mechanisms and identify candidate targets of HA-induced apoptotic cell death. Specific caspaseinhibitors were used to further elucidate the molecular pathway underlying apoptosis in PDT-treated A549 cells. Finally, down-stream apoptosis-related protein was evaluated. Apoptosis induced by HA was associated with cell shrinkage, externalization of cell membrane phosphatidylserine, DNA fragmentation,and mitochondrial disruption, which were preceded by increased intracellular reactive oxygen species(ROS) generations. Further studies showed that PDT treatment with 0.08 mmol/L HA resulted in mitochondrial disruption, pronounced release of cytochrome c, and activation of caspase-3,-9, and-7.Together, HA may be a possible therapeutic agent directed toward mitochondria and a promising photodynamic anticancer candidate for further evaluation.Shanshan Qi Lingyuan Guo Shuzhen Yan Robert J.Lee Shuqin Yu Shuanglin Chen 2019Acta Pharmaceutica Sinica B2019,9,2:12
8The function and potential drug targets of tumour-associated Tregs for cancer immunotherapy显示文摘Regulatory T cells(Tregs) play an important role in maintaining self-tolerance and immune homeostasis, but they also play a negative role in evoking effective antitumour immune responses. There is ample evidence indicating that the depletion of Tregs or the inhibition of Treg function will enhance antitumour effects. However, it is unclear which surface molecules of Tregs are suitable targets for tumour immunotherapy with minimal toxic side effects, which is a central theme in the field of Treg-targeted immunotherapy. In this review, we focus on the regulatory mechanisms of Tregs, including intrinsic and extrinsic factors within the tumour microenvironment, and we address potential drug targets on Tregs for immunotherapy.Shanshan Yan Yaguang Zhang Bing Sun 2019Science China(Life Sciences)2019,62,2:11
9Detection and fine-mapping of SC7 resistance genes via linkage and association analysis in soybean显示文摘Soybean mosaic virus(SMV) disease is one of the most serious and broadly distributed soybean(Glycine max(L.) Merr.) diseases. Here, we combine the advantages of association and linkage analysis to identify and fine-map the soybean genes associated with resistance to SMV strain SC7.A set of 191 soybean accessions from different geographic origins and 184 recombinant inbred lines(RILs) derived from Kefeng No.1(resistant) Nannong 1138-2(susceptible) were used in this study. The SC7 resistance genes were previously mapped to a 2.65 Mb region on chromosome 2 and a 380 kb region on chromosome 13. Among 19 single nucleotide polymorphisms(SNPs) detected via association analysis in the study, the SNP BARC-021625-04157 was located in the2.65 Mb region, and the SNP BARC-041671-08065 was located near the 380 kb region; three genes harboring the SNPs were probably related to SC7 resistance. The resistance gene associated with BARC-021625-04157 was then finemapped to a region of approximately 158 kb on chromosome2 using 184 RILs. Among the 15 genes within this region, one NBS-LRR type gene, one HSP40 gene and one serine carboxypeptidase-type gene might be candidate SC7 resistance genes. These results will be useful for map-based cloning and marker-assisted selection in soybean breeding programs.Honglang Yan Hui Wang Hao Cheng Zhenbin Hu Shanshan Chu Guozheng Zhang Deyue Yu 2015Journal of Integrative Plant Biology2015,57,8:10
10Human organoids in basic research and clinical applications显示文摘Organoids are three-dimensional(3D)miniature structures cultured in vitro produced from either human pluripotent stem cells(hPSCs)or adult stem cells(AdSCs)derived from healthy individuals or patients that recapitulate the cellular heterogeneity,structure,and functions of human organs.The advent of human 3D organoid systems is now possible to allow remarkably detailed observation of stem cell morphogens,maintenance and differentiation resemble primary tissues,enhancing the potential to study both human physiology and developmental stage.As they are similar to their original organs and carry human genetic information,organoids derived from patient hold great promise for biomedical research and preclinical drug testing and is currently used for personalized,regenerative medicine,gene repair and transplantation therapy.In recent decades,researchers have succeeded in generating various types of organoids mimicking in vivo organs.Herein,we provide an update on current in vitro differentiation technologies of brain,retinal,kidney,liver,lung,gastrointestinal,cardiac,vascularized and multi-lineage organoids,discuss the differences between PSC-and AdSC-derived organoids,summarize the potential applications of stem cell-derived organoids systems in the laboratory and clinic,and outline the current challenges for the application of organoids,which would deepen the understanding of mechanisms of human development and enhance further utility of organoids in basic research and clinical studies.Xiao-Yan Tang Shanshan Wu Da Wang Chu Chu Yuan Hong Mengdan Tao Hao Hu Min Xu Xing Guo Yan Liu 2022Signal Transduction and Targeted Therapy2022,7,6:10
11Mathematical Model and Experiment Validation of Fluid Torque by Shear Stress under Influence of Fluid Temperature in Hydro-viscous Clutch显示文摘The current design of hydro-viscous clutch(HVC)in tracked vehicle fan transmission mainly focuses on high-speed and high power.However,the fluid torque under the influence of fluid temperature can not be predicted accurately by conventional mathematical model or experimental research.In order to validate the fluid torque of HVC by taking the viscosity-temperature characteristic of fluid into account,the test rig is designed.The outlet oil temperature is measured and fitted with different rotation speed,oil film thickness,oil flow rate,and inlet oil temperature.Meanwhile,the film torque can be obtained.Based on Navier-Stokes equations and the continuity equation,the mathematical model of fluid torque is proposed in cylindrical coordinate.Iterative method is employed to solve the equations.The radial and tangential speed distribution,radial pressure distribution and theoretical flow rate are determined and analyzed.The models of equivalent radius and fluid torque of friction pairs are introduced.The experimental and theoretical results indicate that tangential speed distribution is mainly determined by the relative rotating speed between the friction plate and the separator disc.However,the radial speed distribution and pressure distribution are dominated by pressure difference at the lower rotating speed.The oil film fills the clearance and the film torque increases with increasing rotating speed.However,when the speed reaches a certain value,the centrifugal force will play an important role on the fluid distribution.The pressure is negative at the outer radius when inlet flow rate is less than theoretical flow,so the film starts to shrink which decreases the film torque sharply.The theoretical fluid torque has good agreement with the experimental data.This research proposes a new fluid torque mathematical model which may predict the film torque under the influence of temperature more accurately.CUI Hongwei YAO Shouwen YAN Qingdong FENG Shanshan LIU Qian 2014Chinese Journal of Mechanical Engineering2014,27,1:6
12Bathymetric Prediction from Multi-source Satellite Altimetry Gravity Data显示文摘According to the 'theoretical admittance ' and the 'observation admittance' of the actual data,the theoretical value of effective elastic thickness in the study area was 10 km.Combining the gravity anomalies and vertical gravity gradient anomalies,the admittance function is used to construct the 1′×1′ bathymetry model over the Philippine Sea by using the adaptive weighting technique.It is found that the accuracy of the bathymetry model constructed is the highest when the ratio of inversion result of vertical gravity gradient anomalies and inversion result of gravity anomalies is 2∶3.At the same time,using multi-source gravity data to predict bathymetry could synthesize the superiority of gravity anomalies and vertical gravity gradient anomalies on the different seafloor topography,and the accuracy is better than bathymetry model that only used gravity anomalies or vertical gravity gradient anomalies.Taking the ship test data as the checking condition,the accuracy of predicting model is slightly lower than that of V18.1 model and improved by 27.17% and 39.02% respectively compared with the ETOPO1 model and the DTU10 model.Check points which the absolute value of the relative error of the predicting model is in the range of 5% accounted for 94.25% of the total.Diao FAN Shanshan LI Shuyu MENG Chi ZHANG Jinkai FENG Yan HUANG Jiawei DU Zhibin XING 2019Journal of Geodesy and Geoinformation Science2019,2,1:6
13寨卡病毒引起小鼠睾丸损伤并导致雄性不育显示文摘虽然寨卡病毒与其他黄病毒属成员,如登革热病毒、乙型脑炎病毒和两尼罗病毒都是通过蚊媒传播,但是前人的研究发现寨卡病毒在精液中存在数月之久,暗示其性接触传播的可能性。本研究表明寨卡病毒影响雄性生殖系统,提示了其对男性健康的潜在危害。Wenqiang Ma Shihua Li Shuoqian Ma Lina Jia Fuchun Zhang Yong Zhang Jingyuan Zhang Gary Wong Shanshan Zhang Xuancheng Lu Mei Liu Jinghua Yan Wei Li Chuan Qin Daishu Han Chengfeng Qin Na Wang 李向东 高福 2017科学新闻2017,19,4:5
14Clinical features, survival and prognostic factors of primary testicular diffuse large B-cell lymphoma显示文摘Objective: To assess the clinical features, survival and prognostic factors of primary testicular diffuse large B-cell lymphoma(DLBCL).Methods: A retrospective study of 37 patients with primary testicular DLBCL was carried out from November 2003 to May 2012. Their clinical features, survival and prognostic factors were analyzed.Results: During a median follow-up period of 39.8 months(5.4-93.0 months), the median progression-free survival(PFS) was 26.2 months(95% CI: 0-65 months) and the 3-year overall survival(OS) rate was 78.4%. Within the whole cohort, the factors significantly associated with a superior PFS were limited stage(stage I/II), lactate dehydrogenase(LDH) ≤245 U/L, international prognostic index(IPI) ≤1, primary tumor diameter <7.5 cm, and patients who had complete response(CR) and received doxorubicin-contained chemotherapy(P<0.05). There was a trend toward superior outcome for patients who received combined therapy(surgery/chemotherapy/radiotherapy)(P=0.055). Patients who had CR, primary tumor diameter <7.5 cm and IPI score ≤1 were significantly associated with longer PFS at multivariate analysis.Conclusions: Primary testicular DLBCL had poorer survival. CR, primary tumor diameter and IPI were independent prognostic factors. The combined therapy of orchectomy, doxorubicin-contained chemotherapy and contralateral testicular radiotherapy(RT) seemed to improve survival.Bo Jia Yuankai Shi Mei Dong Fengyi Feng Sheng Yang Hua Lin Liqiang Zhou Shengyu Zhou Shanshan Chen Jianliang Yang Peng Liu Yan Qin Changgong Zhang Lin Gui Lin Wang Xue Wang Xiaohui He 2014Chinese Journal of Cancer Research2014,26,4:5
15Impacts of exercise interventions on different diseases and organ functions in mice显示文摘Background'. In recent years, much evidence has emerged to indicate that exercise can benefit people when performed properly. This reviewsummarizes the exercise interventions used in studies involving mice as they are related to special diseases or physiological status. To furtherunderstand the effects of exercise interventions in treating or preventing diseases, it is important to establish a template for exercise interventionsthat can be used in future exercise-related studies.Methods'. PubMed was used as the data resource for articles. To identify studies related to the effectiveness of exercise interventions for treatingvarious diseases and organ functions in mice, we used the following search language: (exercise [Title] OR training [Title] OR physical activity[Title]) AND (mice [title/abstract] OR mouse [title/abstract] OR mus [title/abstract]). To limit the range of search results, we included 2 filters:one that limited publication dates to 'in 10 years,^ and one that sorted the results as 'best match^^. Then we grouped the commonly used exercisemethods according to their similarities and differences. We then evaluated the effectiveness of the exercise interventions for their impact on diseasesand organ functions in 8 different systems.Results'. A total of 331 articles were included in the analysis procedure. The articles were then segmented into 8 systems for which the exerciseinterventions were used in targeting and treating disorders: motor system (60 studies), metabolic system (45 studies), cardio-cerebral vascularsystem (58 studies), nervous system (74 studies), immune system (32 studies), respiratory system (7 studies), digestive system (1 study), and thesystem related to the development of cancer (54 studies). The methods of exercise interventions mainly involved the use of treadmills, voluntarywheel-running, forced wheel-running, swimming, and resistance training. It was found that regardless of the specific exercise method used, mostof them demonstrated positive effects on various systemic diseases and organ functions. Most diseases were remitted with exercise regardless ofthe exercise method used, although some diseases showed the best remission effects when a specific method was used.Conclusion-. Our review strongly suggests that exercise intervention is a cornerstone in disease prevention and treatment in mice. Because exerciseinterventions in humans typically focus on chronic diseases, national fitness, and body weight loss, and typically have low intervention com・pliance rates, it is important to use mice models to investigate the molecular mechanisms underlying the health benefits from exerciseinterventions in humans.Shanshan Guo Yiru Huang Yan Zhang He Huang Shangyu Hong Tiemin Liu 2020Journal of Sport and Health Science2020,9,1:5
16Iron Aggravates the Depressive Phenotype of Stressed Mice by Compromising the Glymphatic System显示文摘Dear Editor,The pathophysiologic al mechanisms underlying mood disorders including major depressive disorder(MDD)remain to be fully characterized.Iron is a key component in the development of the central nervous system and iron deficiency has been linked to impairments of mood and cognition[1].Shanshan Liang Yan Lu Zexiong Li Shuai Li Beina Chen Manman Zhang Binjie Chen Ming Ji Wenliang Gong Maosheng Xia Alexei Verkhratsky Xu Wu Baoman Li 2020Neuroscience Bulletin2020,36,12:5
17Macrophage-derived small extracellular vesicles promote biomimetic mineralized collagen-mediated endogenous bone regeneration显示文摘Macrophages play an important role in material-related immune responses and bone formation,but the functionality of macrophage-derived extracellular vesicles(EVs)in material-mediated bone regeneration is still unclear.Here,we evaluated intracellular communication through small extracellular vesicles(sEVs)and its effects on endogenous bone regeneration mediated by biomimetic intrafibrillarly mineralized collagen(IMC).After implantation in the bone defect area,IMC generated more neobone and recruited more mesenchymal stem cells(MSCs)than did extrafibrillarly mineralized collagen(EMC).More CD63+CD90+and CD63+CD163+cells were detected in the defect area in the IMC group than in the EMC group.To determine the functional roles of sEVs,extracellular vesicles from macrophages cultured on different mineralized collagen were isolated,and they showed no morphological differences.However,macrophage-derived sEVs in the IMC group showed an enhanced Young’s modulus and exerted beneficial effects on the osteogenic differentiation of bone marrow MSCs by increasing the expression of the osteoblastic differentiation markers BMP2,BGLAP,COL1,and OSX and calcium nodule formation.Mechanistically,sEVs from IMC-treated macrophages facilitated MSC osteogenesis through the BMP2/Smad5 pathway,and blocking sEV secretion with GW4869 significantly impaired MSC proliferative,immunomodulative and osteogenic potential.Taken together,these findings show that macrophage-derived sEVs may serve as an emerging functional tool in biomaterial-mediated endogenous bone regeneration.Anqi Liu Shanshan Jin Cuicui Fu Shengji Cui Ting Zhang Lisha Zhu Yu Wang Steve G.F.Shen Nan Jiang Yan Liu 2020International Journal of Oral Science2020,12,4:5
183D-printed controllable gradient pore superwetting structures for high temperature efficient oil-water separation显示文摘Superwetting surfaces have the potential to address oil pollution in water,through their ability to separate the two.However,it remains a great challenge to fabricate stable and efficient separation structures using conventional manufacturing techniques.Furthermore,the materials traditionally used for oil-water separation are not stable at high temperature.Therefore,there is a need to develop stable,customizable structures to improve the performance of oil-water separation devices.In recent years,3D printing technology has developed rapidly,and breakthroughs have been made in the fabrication of complicated ceramic structures using this technology.Here,a ceramic material with a gradient pore structure and superhydrophobic/superoleophilic properties was prepared using 3D printing for high-efficiency oil-water separation.The gradient pore structure developed here can support a flux of up to 25434 L/m^(2)h,which is nearly 40%higher than that an analogous structure with straight pores.At 200℃,the oil-water separation performance was maintained at 97.4%.Furthermore,samples of the material exhibited outstanding mechanical properties,and chemical stability in a variety of harsh environments.This study provides an efficient,simple,and reliable method for manufacturing oil-water separation materials using 3D printing,and may have broader implications for both fundamental research and industrial applications.Zhipeng Jin Hui Mei Yuekai Yan Longkai Pan Hongxia Liu Shanshan Xiao Laifei Cheng 2021Journal of Materiomics2021,7,1:4
19MATRIEX imaging:multiarea two-photon real-time in vivo explorer显示文摘Two-photon laser scanning microscopy has been extensively applied to study in vivo neuronal activity at cellular and subcellular resolutions in mammalian brains.However,the extent of such studies is typically confined to a single functional region of the brain.Here,we demonstrate a novel technique,termed the multiarea two-photon real-time in vivo explorer(MATRIEX),that allows the user to target multiple functional brain regions distributed within a zone of up to 12mm in diameter,each with a field of view(FOV)of ~200μm in diameter,thus performing two-photon Ca2+imaging with single-cell resolution in all of the regions simultaneously.For example,we demonstrate real-time functional imaging of single-neuron activities in the primary visual cortex,primary motor cortex and hippocampal CA1 region of mice in both anesthetized and awake states.A unique advantage of the MATRIEX technique is the configuration of multiple microscopic FOVs that are distributed in three-dimensional space over macroscopic distances(>1 mm)both laterally and axially but that are imaged by a single conventional laser scanning device.In particular,the MATRIEX technique can be effectively implemented as an add-on optical module for an existing conventional single-beam-scanning two-photon microscope without requiring any modification to the microscope itself.Thus,the MATRIEX technique can be readily applied to substantially facilitate the exploration of multiarea neuronal activity in vivo for studies of brain-wide neural circuit function with single-cell resolution.Mengke Yang Zhenqiao Zhou Jianxiong Zhang Shanshan Jia Tong Li Jiangheng Guan Xiang Liao Bing Leng Jing Lyu Kuan Zhang Min Li Yan Gong Zhiming Zhu Junan Yan Yi Zhou Jian K Liu Zsuzsanna Varga Arthur Konnerth Yuguo Tang Jinsong Gao Xiaowei Chen Hongbo Jia 2019Light(Science & Applications)2019,8,1:4
20New possible silver lining for pancreatic cancer therapy:Hydrogen sulfide and its donors显示文摘As one of the most lethal diseases,pancreatic cancer shows a dismal overall prognosis and high resistance to most treatment modalities.Furthermore,pancreatic cancer escapes early detection during the curable period because early symptoms rarely emerge and specific markers for this disease have not been found.Although combinations of new drugs,multimodal therapies,and adjuvants prolong survival,most patients still relapse after surgery and eventually die.Consequently,the search for more effective treatments for pancreatic cancer is highly relevant and justified.As a newly re-discovered mediator of gasotransmission,hydrogen sulfide(H2S)undertakes essential functions,encompassing various signaling complexes that occupy key processes in human biology.Accumulating evidence indicates that H2S exhibits bimodal modulation of cancer development.Thus,endogenous or low levels of exogenous H2S are thought to promote cancer,whereas high doses of exogenous H2S suppress tumor proliferation.Similarly,inhibition of endogenous H2S production also suppresses tumor proliferation.Accordingly,H2S biosynthesis inhibitors and H2S supplementation(H2S donors)are two distinct strategies for the treatment of cancer.Unfortunately,modulation of endogenous H2S on pancreatic cancer has not been studied so far.However,H2S donors and their derivatives have been extensively studied as potential therapeutic agents for pancreatic cancer therapy by inhibiting cell proliferation,inducing apoptosis,arresting cell cycle,and suppressing invasion and migration through exploiting multiple signaling pathways.As far as we know,there is no review of the effects of H2S donors on pancreatic cancer.Based on these concerns,the therapeutic effects of some H2S donors and NO-H2S dual donors on pancreatic cancer were summarized in this paper.Exogenous H2S donors may be promising compounds for pancreatic cancer treatment.Xu Hua Yan Xiao Jianan Sun Bao Ji Shanshan Luo Bo Wu Chao Zheng Peng Wang Fanxing Xu Keguang Cheng Huiming Hua Dahong Li 2021Acta Pharmaceutica Sinica B2021,11,5:4
返回顶部 每页显示:
共7页 首页 上一页 第1页 下一页 末页 /7 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费