|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | CRISPR/Cas9-mediated gene editing in human tripronuclear zygotes显示文摘染色体编辑工具例如定期聚类短 palindromic 重复(CRISPR ) 联系了的 interspaced 系统(Cas ) 广泛地被用来包括动物接合子和人的房间在模型系统修改基因,并且为基本研究和临床的应用保持巨大的诺言。迄今为止,严肃的知识差距在人的早胚胎,并且在效率和在人的培植前胚胎使用象 CRISPR/Cas9 那样的技术的潜在的离开目标效果留在我们 DNA 修理机制的理解。在这份报告,我们使用了推进的接合子调查 CRISPR/Cas9-mediated 基因在人的房间编辑的 tripronuclear (3PN ) 。我们发现 CRISPR/Cas9 能有效地劈开内长的 -globin 基因(HBB ) 。然而,相应再结合的效率指导了 HBB 的修理(HDR ) 是低的,编辑胚胎是马赛克。离开目标劈开在由 T7E1 试金并且 whole-exome 定序揭示了的这些 3PN 接合子也是明显的。而且,内长的 delta-globin 基因(HBD ) 对 HBB 相应,与外长的施主 oligos 竞争了充当修理模板,导致倔强的变化。我们的数据也显示在这些胚胎的 HBB 地点的修理通过非转线路 HDR 小径优先地发生了。一起拿,我们的工作加亮紧迫的需要进一步改进 CRISPR/Cas9 平台的忠实和特性,为编辑的 CRSIPR/Cas9-mediated 的任何临床的应用程序的一个前提。 | Puping Liang Yanwen Xu Xiya Zhang Chenhui Ding Rui Huang Zhen Zhang Jie Lv Xiaowei Xie Yuxi Chen Yujing Li Ying Sun Yaofu Bai Zhou Songyang Wenbin Ma Canquan Zhou Junjiu Huang | 2015 | Protein & Cell2015，6，5： | 149 |
| 2 | Human telomeric proteins occupy selective interstitial sites显示文摘人的 telomeres 被在六核心 telomeric 蛋白质 RAP1, TRF1, TRF2, TIN2, TPP1,和 POT1 附近装配的蛋白质建筑群绑并且保护。telomeres 上的这些蛋白质的功能广泛地被学习了。最近,增加证据在 telomeres 外面为这些蛋白质建议了可能的角色。然而,不在经典中(extra-telomeric ) 人的 telomeric 蛋白质遗体的功能糟糕理解。到这个目的,我们系统地沿着人的染色体调查了 telomeric 蛋白质的有约束力的地点,由执行为 RAP1 和 TRF2 的整个染色体的染色质 immunoprecipitation (薄片) 。(ChIP-seq ) 薄片定序表明 RAP1 和 TRF2 能在空隙的地点的一个小数字上被发现,包括对基因近似的区域。一些这些有约束力的地点包含短 telomere 重复,建议蛋白质能直接绑在空隙的地点的那 telomeric。有趣地,仅仅可得到的空隙的 telomere 的小部分包含重复的区域被 RAP1 和 TRF2 占据。宫外地表示的 TRF2 能占据另外的空隙的 telomere 重复地点,建议蛋白质集中可以支配到空隙的地点的 telomeric 蛋白质的选择指向。由 RNA 干扰减少 RAP1 和 TRF2 表示导致了指向 RAP1 、指向 TRF2 的基因的改变的抄写。我们的结果显示人的 telomeric 蛋白质能占据一小部分空隙的地点并且调整基因抄写。 | Dong Yang Yuanyan Xiong Hyeung Kim Quanyuan He Yumei Li Rui Chen Zhou Songyang | 2011 | Cell Research2011，21，7： | 7 |
| 3 | CTRP1 Attenuates UUO-induced Renal Fibrosis via AMPK/NOX4 Pathway in Mice显示文摘Clq/TNF-related protein 1(CTRP1),a conserved protein of the Clq family,plays a key role in cardiovascular and metabolic diseases.However,the role of CTRP1 in renal injury is unclear.The purpose of this study is to explore the role of CTRP1 in unilateral ureteral obstruction(UUO)-induced renal fibrosis and to elucidate the underlying mechanism.Using gene delivery system,CTRP1 was overexpressed in the kidney,then the mice were operated to induce UUO model after adenovirus transfection.It was found that the expression of CTRP1 in the renal tissue was decreased in mice after UUO.CTRP1 overexpression decreased the kidney function and kidney weight index.Moreover,CTRP1 reduced oxidative stress and renal collagen deposition in vivo.As expected,we found that CTRP1 activated AMP-activated kinase(AMPK)and decreased NOX4 expression,while silencing AMPKal abolished the protective effects of CTRP1 overexpression in mice after UUO.In conclusion,CTRP1 may protect against UUO-induced renal injury via AMPK/NOX4 signaling.Our results indicate that CTRP1 exhibits potential effects to treat renal fibrosis caused by UUO. | Wen LI Fan CHENG Yi-yan SONGYANG Song-yi-sha YANG Jie WEI Yuan RUAN | 2020 | Current Medical Science2020，40，1： | 6 |
| 4 | Questions about NgAgo显示文摘 | Shawn Burgess Linzhao Cheng Feng Gu Zhiwei Huang Shuo Lin Jinsong Li Wei Li Wei Qin Yujie Sun Zhou Songyang Wensheng Wei Qiang Wu Haoyi Wang Xiaoqun Wang Jing-Wei Xiong Jianzhong Xi Hui Yang Bin Zhou Bo Zhang Junjiu Huang | 2016 | Protein & Cell2016，7，12： | 5 |
| 5 | Assessing the impact of urbanization on net primary productivity using multi-scale remote sensing data: a case study of Xuzhou, China显示文摘一条改进 Carnegie Ames 斯坦福途径(房屋)基于二种遥感( RS )为数据建模, Landsat 提高了题目的 Mapper 加(ETM +)并且中等分辨率成像分光辐射函数( MODIS ),并且气候变量被使用从 2001~2010 在每年的6月估计 Xuzhou 的网络主要生产率( NPP ).当空间规模在显示出的 Xuzhou 增加了陆上的植被的平均 NPP ,学习区域的 NPP 减少了最近的年里的一个减少的趋势,多半,由于在气候和环境的变化,学习区域被划分成四个分区,是指明了在在 NPP 指定为最低分区的区域与膨胀增加了的 NPP 最高、中等高、中等低、最低的规模,显示 NPP 分发与不同植被的 NPP 打的不同空间规模变化了被规模显著地也特别地影响,因为混合象素,生产的城市的树林的 NPP 降低估计在 NPP 的类似的趋势另外与不同 RS 数据被观察,生长区域的居住区域和减小的扩大是主要原因因为在城市的区域的 NPP 变化陆地盖子变化减少了 NPP ,它能主要被归因于导致人的骚乱。 | Kun TAN Songyang ZHOU Erzhu LI Peijun DU | 2015 | Frontiers of Earth Science2015，9，2： | 2 |
| 6 | Geology, Geochronology, and Hf Isotopic Composition of the Pha Lek Fe Deposit, Northern Laos: Implications for Early Permian Subduction-Related Skarn Fe Mineralization in the Truong Son Belt显示文摘The Truong Son metallogenic belt in central Laos and Vietnam is an important Fe-Cu-Sn-Au polymetallic ore district. The Pha Lek Fe deposit is closely related to Late Carboniferous– Early Permian I-type granitic magmatism, and contains >50 Mt @ 45% to 50% of Fe ore. Ore minerals occur mainly as magnetite and hematite in the skarn alteration zone between a granitic pluton and metamorphosed Middle–Upper Devonian carbonates. The granitic pluton comprises granodiorite and granite, with zircon U-Pb dating indicating synchronous emplacement at 288.2±1.3 and 284.9±1.2 Ma, respectively. Zircons from these granitoids have ε_(Hf)(t) values of 2.9–11.2 and relatively young TDM2 ages(<1.0 Ga), indicating an origin by partial melting of depleted mafic crust or magma mixing. Previous studies have shown that these granitoids have high Y, Yb, and K_2O contents, and low Sr and Na_2O contents, which are interpreted as the melting of mafic continental crust. Pyrite of the main mineralization stage yields an ^(187)Re/^(188)Os-^(187)Os/^(188)Os isochron age of 287±17 Ma, indicating that mineralization is associated with Pha Lek granitic magmatism. A Late Carboniferous–Early Permian subduction-related skarn-type Fe mineralization model is proposed for the Pha Lek deposit. More evidence is needed to verify a hypothesis of volcanic overprinting during Late Triassic post-collisional extension. | Lin Hou Shusheng Liu Linnan Guo Fuhao Xiong Chao Li Meifeng Shi Qiming Zhang Siwei Xu Songyang Wu | 2019 | Journal of Earth Science2019，30，1： | 2 |
| 7 | The creep compaction behavior of crushed mudstones under the step loading in underground mining显示文摘The crushed rocks are used as a filling material in mined丒out areas of underground mining. Compared with the man-made filling materials, the crushed rocks exhibit higher compressibility and lower stability, which may result in instability of surrounding rock and surface subsidence. To study the creep compaction behavior of crushed mudstones, a series of creep tests are conducted. The investigations show that the creep compaction behavior of crushed mudstones is highly dependent on the original grain composition and axial stress applied on the samples. The samples with more large particles are easier to deform at initial loading stage for more large voids existed in the samples, and exhibit greater stability than those with smaller particles when the axial stress less than the bearing capacity of uframework structure When the axial stress is higher than 20 MPa, the influences of grain composition on deformability of crushed mudstones are weakened after the samples experience repeated compression. At lower stress level, the creep behavior prefers to occur in the samples w.h smaller particles, which is mainly caused by particles flow without significant particle breakage. As the axial stress increases, the single-sized sample with smaller particle size and the well-graded sample with larger Talbol power exponent n present more unstable under the constant stress. In addition, the filling of the residual intergranular voids by small particles formed by crushing and splitting behavior is the main cause of creep deformation. Lastly, a creep equation of crushed mudstones is obtained in this paper, which can agree with the experimental results in good. | Zhibiao Guo Qiong Wang Songyang Yin Xiaohui Kuai Dongshan Yan Mengyi Li Yandong Qu | 2019 | International Journal of Coal Science & Technology2019，6，3： | 2 |
| 8 | Revealing a steroid receptor ligand as a unique PPARγ 3gonist显示文摘 | Shengchen Lin Ying Han Yuzhe Shi Hui Rong Songyang Zheng Shikan Jin Shu-Yong Lin Sheng-Cai Lin Yong Li | 2012 | Cell Research2012，22，4： | 2 |
| 9 | Regulation of the order-disorder phase transition in a Cs_(2)NaFeCl_(6) double perovskite towards reversible thermochromic application显示文摘Multifunctional lead-free double perovskites demonstrate remarkable potential towards applications in various fields.Herein,an environmentally-friendly,low-cost,high-throughput Cs_(2)NaFeCl_(6) single crystal with exceedingly high thermal stability is designed and grown.It obtains a cubic lattice system in the temperature range of 80-500 K,accompanied by a completely reversible chromatic variation ranging from yellow to black.Importantly,the intriguing thermochromism is proved to own extremely high reproducibility(over 1000 cycles)without a hysteretic effect,originating from its structural flexibility that including(i)the noteworthy distortion/deformation of[NaCl_(6)]5−and[FeCl_(6)]3−octahedra;(ii)order-disorder arrangement transition of[NaCl_(6)]5−and[FeCl6]3−octahedra as the function of temperature.This study paves the way towards a new class of smart windows and camouflage coatings with an unprecedented colour range based on a Cs_(2)NaFeCl_(6) perovskite. | Wenzhe Li Naveed Ur Rahman Yeming Xian Hang Yin Yunkai Bao Yi Long Songyang Yuan Yangyi Zhang Yaxuan Yuan Jiandong Fan | 2021 | Journal of Semiconductors2021，42，7： | 2 |
| 10 | Biomarkers of aging显示文摘Aging biomarkers are a combination of biological parameters to(i)assess age-related changes,(ii)track the physiological aging process,and(iii)predict the transition into a pathological status.Although a broad spectrum of aging biomarkers has been developed,their potential uses and limitations remain poorly characterized.An immediate goal of biomarkers is to help us answer the following three fundamental questions in aging research:How old are we?Why do we get old?And how can we age slower?This review aims to address this need.Here,we summarize our current knowledge of biomarkers developed for cellular,organ,and organismal levels of aging,comprising six pillars:physiological characteristics,medical imaging,histological features,cellular alterations,molecular changes,and secretory factors.To fulfill all these requisites,we propose that aging biomarkers should qualify for being specific,systemic,and clinically relevant. | Aging Biomarker Consortium Hainan Bao Jiani Cao Mengting Chen Min Chen Wei Chen Xiao Chen Yanhao Chen Yu Chen Yutian Chen Zhiyang Chen Jagadish K Chhetri Yingjie Ding Junlin Feng Jun Guo Mengmeng Guo Chuting He Yujuan Jia Haiping Jiang Ying Jing Dingfeng Li Jiaming Li Jingyi Li Qinhao Liang Rui Liang Feng Liu Xiaoqian Liu Zuojun Liu Oscar Junhong Luo Jianwei Lv Jingyi Ma Kehang Mao Jiawei Nie Xinhua Qiao Xinpei Sun Xiaoqiang Tang Jianfang Wang Qiaoran Wang Siyuan Wang Xuan Wang Yaning Wang Yuhan Wang Rimo Wu Kai Xia Fu-Hui Xiao Lingyan Xu Yingying Xu Haoteng Yan Liang Yang Ruici Yang Yuanxin Yang Yilin Ying Le Zhang Weiwei Zhang Wenwan Zhang Xing Zhang Zhuo Zhang Min Zhou Rui Zhou Qingchen Zhu Zhengmao Zhu Feng Cao Zhongwei Cao Piu Chan Chang Chen Guobing Chen Hou-Zao Chen Jun Chen Weimin Ci Bi-Sen Ding Qiurong Ding Feng Gao Jing-Dong JHan Kai Huang Zhenyu Ju Qing-Peng Kong Ji Li Jian Li Xin Li Baohua Liu Feng Liu Lin Liu Qiang Liu Qiang Liu Xingguo Liu Yong Liu Xianghang Luo Shuai Ma Xinran Ma Zhiyong Mao Jing Nie Yaojin Peng Jing Qu Jie Ren Ruibao Ren Moshi Song Zhou Songyang Yi Eve Sun Yu Sun Mei Tian Shusen Wang Si Wang Xia Wang Xiaoning Wang Yan-Jiang Wang Yunfang Wang Catherine CL Wong Andy Peng Xiang Yichuan Xiao Zhengwei Xie Daichao Xu Jing Ye Rui Yue Cuntai Zhang Hongbo Zhang Liang Zhang Weiqi Zhang Yong Zhang Yun-Wu Zhang Zhuohua Zhang Tongbiao Zhao Yuzheng Zhao Dahai Zhu Weiguo Zou Gang Pei Guang-Hui Liu | 2023 | Science China(Life Sciences)2023，66，5： | 2 |
| 11 | Investigation of a combustible material in the fire of Hengyang Merchant's Building 显示文摘 | Zong Ruowen Zhang Xiaoqin Li Songyang | 2008 | Fire and Material2008，32，： | 1 |
| 12 | Whole-genome screening identifies proteins localized to distinct nuclear bodies显示文摘 | Ka-wing Fong Yujing Li Wenqi Wang Wenbin Ma Kunpeng Li Robert Z. Qi Dan Liu Zhou Songyang Junjie Chen | 2013 | The Journal of Cell Biology2013，，1： | 1 |
| 13 | Simultaneous detection of sulfamethazine, streptomycin, and tylosin in milk by microplate-array based SMM–FIA显示文摘 | Ye Bang-Ce Li Songyang Zuo Peng Li Xiao-hong | 2007 | Food Chemistry2007，，2： | 1 |
| 14 | Variable coefficient in- ductance model-based four-quadrant sensor less control of SRM 显示文摘 | KUAI Songyang LI Xuefeng LI Xinghong | 2014 | Journal of Power Electronics2014，14，6： | 1 |
| 15 | Near-infrared photothermal release of hydrogen sulfide from nanocomposite hydrogels for anti-inflammation applications显示文摘A novel near-infrared light photothemal-activated H2S-donating nanocomposite hydrogel was developed,through combination of a thermo-labile H2S donor and photothermal nanoparticles in agarose hydrogel.The polyethylenimine dithiocarbamate polymer,a thermo-labile compound,was synthesized as a novel H2S donor.The combination of a thermo-labile hydrogen sulfide donor and photothermal nanoparticles enabled the generation of H2S in agarose hydrogel upon irradiation with near-infrared light.The ability to modulate the photoirradiation for controlled generation and spatiotemporally release of H2S are its specific advantages.This photothermal spatiotemporally controlled H2S-releasing strategy was successfully applied to anti-inflammation treatment in a rat model,demonstrating its utility as a novel H2S-based therapeutic approach. | Yan Huang Haifeng Li Xiaoxiao He Xiaohai Yang Li Li Songyang Liu Zhen Zou Kemin Wang Jianbo Liu | 2020 | Chinese Chemical Letters2020，31，3： | 1 |
| 16 | Bonding Efficacy of a Self-adhesive Resin Cement to Enamel and Dentin显示文摘With the objective to evaluate the bonding efficacy of a new self-adhesive resin cement(RelyX Unicem, 3M ESPE) to enamel and dentin using a shear bonding strengths test with or without acid etching pretreatment, flat buccal dentin surface and mesial/distal enamel surface were made using a high-speed diamond bur. Copper rings were luted using Rely X Unicem(RU; 3M ESPE), Panavia F(PF; Kuraray) or Vitique(VI; DMG). For RU, the shear bonding strengths using GL(Gluma Etch, Heraeus) acid etching pretreatment were also tested. The teeth were placed into copper rings(inner diameter: 16 mm, height: 4mm) and embedded in methylmethacrylate resin. The specimens were stored for 24 h in distilled water at 37 ℃ prior to shear bonding strengths testing. In addition, bond failures were examined by optical microscope and categorized as 4 models such as different adhesive, cohesive, or mixed. Shear bonding strengths were calculated by dividing the maximum debonding force over the cross sectional area of each specimen. The Kruskal-Wallis test was used to determine pairwise statistical differences(P < 0.05) in SBS between the experimental groups. For dentin bonding strength, statistical analysis showed that there was no significant difference among RU(12.84 MPa), PF(14.93 MPa) and VI(11.03 MP); and the bonding strengths of them were higher than RU with acid etching pretreatment(9.12 MP). When bonded to enamel, PF(17.99 MP) and VI(17.58 MP) scored significantly higher than RU efficacy.The use of self-adhesive cement Rely X Unicem can obtain the bonding strengths to dentin similar to traditional resin cements. Phosphoric acid etching can improve the bonding strengths of the selfadhesive resin cement to enamel, but was negative for dentin. | 王林虎 XU Haixing LI Songyang 施斌 LI Rong YE Mingfu YANG Jing | 2014 | Journal of Wuhan University of Technology(Materials Science)2014，29，6： | 1 |
| 17 | Mating behaviors in ovoviviparous black rockfish(Sebastes schlegelii):molecular function of prostaglandin E2 as both a hormone and pheromone显示文摘Prostaglandins(PGs)are profound hormones in teleost sexual behavior,especially in mating.PGs act as pheromones that affect the olfactory sensory neurons of males,inducing the initiation of a series of mating behaviors.However,the molecular mechanism by which PGs trigger mating behavior in ovoviviparous teleosts is still unclear.In the present study,we employed the ovoviviparous black rockfish(Sebastes schlegelii),an economically important marine species whose reproductive production is limited by incomplete fertilization,as a model species.The results showed that when the dose of PGE2 was higher than 10 nmol/L,a significant(P<0.05)increase in mating behaviors was observed.Dual-fluorescence in situ hybridization indicated that PGE2 could fire specific neurons in different brain regions and receptor cells in the olfactory sac.After combining with specific neurons in the central nervous system(CNS),a series of genes related to reproduction are activated.The intracerebroventricular administration of PGE_(2) significantly increased lhb levels(P<0.05)in both sexes.Moreover,steroidogenesis in gonads was also affected,inducing an increase(P<0.05)in E_(2) levels in males and T levels in females.PGE_(2) levels were also increased significantly(P<0.05)in both sexes.The present study revealed that PGE2 can activate mating behavior in black rockfish in both hormone and pheromone pathways,leading to variations in sex steroid levels and activation of reproductive behaviors.Our results provide not only novel insight into the onset of mating behaviors in ovoviviparous teleosts but also solutions for the incomplete fertilization caused by natural mating in cage aquaculture. | Likang Lyu Yijia Yao Songyang Xie Xiaojie Wang Haishen Wen Yun Li Jianshuang Li Chenpeng Zuo Shaojing Yan Jingyi Dong Xin Qi | 2024 | Marine Life Science & Technology2024，6，1： | 0 |
| 18 | Retrieving chlorophyll content and equivalent water thickness of Moso bamboo(Phyllostachys pubescens) forests under Pantana phyllostachysae Chao-induced stress from Sentinel-2A/B images in a multiple LUTs-based PROSAIL framework显示文摘Biochemical components of Moso bamboo(Phyllostachys pubescens)are critical to physiological and ecological processes and play an important role in the material and energy cycles of the ecosystem.The coupled PROSPECT with SAIL(PROSAIL)radiative transfer model is widely used for vegetation biochemical component content inversion.However,the presence of leaf-eating pests,such as Pantana phyllostachysae Chao(PPC),weakens the performance of the model for estimating biochemical components of Moso bamboo and thus must be considered.Therefore,this study considered pest-induced stress signals associated with Sentinel-2A/B images and field data and established multiple sets of biochemical canopy reflectance look-up tables(LUTs)based on the PROSAIL framework by setting different parameter ranges according to infestation levels.Quantitative inversions of leaf area index(LAI),leaf chlorophyll content(LCC),and leaf equivalent water thickness(LEWT)were derived.The scale conversions from LCC to canopy chlorophyll content(CCC)and LEWT to canopy equivalent water thickness(CEWT)were calculated.The results showed that LAI,CCC,and CEWT were inversely related with PPC-induced stress.When applying multiple LUTs,the p-values were<0.01;the R2 values for LAI,CCC,and CEWT were 0.71,0.68,and 0.65 with root mean square error(RMSE)(normalized RMSE,NRMSE)values of 0.38(0.16),17.56μg cm-2(0.20),and 0.02 cm(0.51),respectively.Compared to the values obtained for the traditional PROSAIL model,for October,R2 values increased by 0.05 and 0.10 and NRMSE decreased by 0.09 and 0.02 for CCC and CEWT,respectively and RMSE decreased by 0.35μg cm-2 for CCC.The feasibility of the inverse strategy for integrating pest-induced stress factors into the PROSAIL model,while establishing multiple LUTs under different pest-induced damage levels,was successfully demonstrated and can potentially enhance future vegetation parameter inversion and monitoring of bamboo forest health and ecosystems. | Zhanghua Xu Anqi He Yiwei Zhang Zhenbang Hao Yifan Li Songyang Xiang Bin Li Lingyan Chen Hui Yu Wanling Shen Xuying Huang Xiaoyu Guo Zenglu Li | 2023 | Forest Ecosystems2023，10，2： | 0 |
| 19 | Firepower distribution method of anti-ship missile based on coupled path planning显示文摘Anti-ship missile coordinated attack mission planning is a complex multi-objective optimization problem with multiple combinations of platforms, strong decision-making constraints,and tightly coupled links. To avoid the coupling disorder between path planning and firepower distribution and improve the efficiency of coordinated attack mission planning, a firepower distribution model under the conditions of path planning is established from the perspective of decoupling optimization and the algorithm is implemented. First, we establish reference coordinate system of firepower distribution to clarify the reference direction of firepower distribution and divide the area of firepower distribution;then, we construct an index table of membership of firepower distribution to obtain alternative firepower distribution plans;finally, the fitness function of firepower distribution is established based on damage income, missile loss,ratio of efficiency and cost of firepower distribution, and the mean square deviation of the number of missiles used, and the alternatives are sorted to obtain the optimal firepower distribution plan. According to two simulation experiments, the method in this paper can effectively solve the many-to-many firepower distribution problem of coupled path planning. Under the premise of ensuring that no path crossing occurs, the optimal global solution can be obtained, and the operability and timeliness are good. | LIU Gang AN Zhibiao LAO Songyang LI Wu | 2022 | Journal of Systems Engineering and Electronics2022，33，4： | 0 |
| 20 | Liraglutide Suppresses Myocardial Fibrosis Progression by Inhibiting the Smad Signaling Pathway显示文摘Objective Liraglutide is a commonly used hypoglycemic agent in clinical practice,and has been demonstrated to have protective effects against the development of cardiovascular disease.However,its potential role in myocardial fibrosis remains unexplored.The present study aims to assess the impact of liraglutide on the activation of cardiac fibroblasts.Methods Primary rat adult fibroblasts were isolated,cultured,and randomly allocated into 4 groups:control group,transforming growth factor beta1(TGFβ1)stimulation group,liraglutide group,and TGFβ1+liraglutide group.Fibroblast activation was induced by TGFβ1.Cell proliferation activity was assessed using the CKK-8 kit,and cellular activity was determined using the MTT kit.Reverse transcrition-quantitative polymerase chain reaction(RT-qPCR)was utilized to quantify the level of collagen transcription,immunofluorescence staining was performed to detect the expression level of type III collagen andα-smooth muscle protein(α-SMA),and immunoblotting was conducted to monitor alterations in signal pathways.Results The addition of 10,25,50 and 100 nmol/L of liraglutide did not induce any significant impact on the viability of fibroblasts(P>0.05).The rate of cellular proliferation was significantly higher in the TGFβl stimulation group than in the control group.However,the treatment with 50 and 100 nmol/L of liraglutide resulted in the reduction of TGFβl-induced cell proliferation(P<0.05).The RT-qPCR results revealed that the transcription levels of type I collagen,type III collagen,andα-SMA were significantly upregulated in the TGFβl stimulation group,when compared to the control group(P<0.05).However,the expression levels of these aforementioned factors significantly decreased in the TGFβl+liraglutide group(P<0.05).The immunofluorescence staining results revealed a significant increase in the expression levels of type III collagen andα-SMA in the TGFβl stimulation group,when compared to the control group(P<0.05).However,these expression levels significantly decreased in the TGFβl+liraglutide group,when compared to the TGFβl stimulation group(P<0.05).The Western blotting results revealed that the expression levels of phosphorylated smad2 and smad3 significantly increased in the TGFβl stimulation group,when compared to the control group(P<0.05),while these decreased in the TGFβl+liraglutide group(P<0.05).Conclusion Liraglutide inhibits myocardial fibrosis development by suppressing the smad signaling pathway,reducing the activation and secretion of cardiac fibroblasts. | Wen SUN Hong MI De-ying HE Wen LI Yi-yan SONGYANG | 2023 | Current Medical Science2023，43，5： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员