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234篇 您的检索式:作者名="Rui Tan"
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1Effect of phosphorylation of MAPK and Stat3 and expression of c-fos and c-jun proteins on hepatocarcinogenesis and their clinical significance显示文摘AIM To study the effect of phosphorylation ofMAPK and Stat3 and the expression of c-fos andc-jun proteins on hepatocellular carcinogenesisand their clinical significance.METHODS SP immunohistochemistry was usedto detect the expression of p42/44MAPK, p-Stat3,c-fos and c-jun proteins in 55 hepatocellularcarcinomas (HCC) and their surrounding livertissues.RESULTS The positive rates and expressionlevels of p42/44MAPK, p-Stat3, c-fos and c-junproteins in HCCs were significantly higher thanthose in pericarcinomatous liver tissues (PCLT).A positive correlation was observed between theexpression of p42/44MAPK and c-fos proteins, andbetween p-Stat3 and c-jun, but there was nosignificant correlation between p42/44MAPK and p-Stat3 in HCCs and their surrounding livertissues.CONCLUSION The abnormalities of Ras/Rat/MAPK and JAKs/ Stat3 cascade reaction maycontribute to malignant transformation ofhepatocytes. Hepatocytes which are positive forp42/ 44MAPK, c-fos or c-jun proteins may bepotential malignant pre-cancerous cells.Activation of MAPK and Stat3 proteins may be anearly event in hepatocellular carcinogenesis.De Yun Feng Hui Zheng Yi Tan Rui Xue Cheng Department of Pathology, Hunan Medical University, Changsha 410078, Hunan Province, China New England Biolab, MA, USA 2001World Journal of Gastroenterology2001,7,1:75
2Orbit determination and time synchronization for a GEO/IGSO satellite navigation constellation with regional tracking network显示文摘Aiming at regional services,the space segment of COMPASS (Phase I) satellite navigation system is a constellation of Geostationary Earth Orbit (GEO),Inclined Geostationary Earth Orbit (IGSO) and Medium Earth Orbit (MEO) satellites.Precise orbit determination (POD) for the satellites is limited by the geographic distribution of regional tracking stations.Independent time synchronization (TS) system is developed to supplement the regional tracking network,and satellite clock errors and orbit data may be obtained by simultaneously processing both tracking data and TS data.Consequently,inconsistency between tracking system and TS system caused by remaining instrumental errors not calibrated may decrease navigation accuracy.On the other hand,POD for the mixed constellation of GEO/IGSO/MEO with the regional tracking network leads to parameter estimations that are highly correlated.Notorious example of correlation is found between GEO's orbital elements and its clock errors.We estimate orbital elements and clock errors for a 3GEO+2IGSO constellation in this study using a multi-satellite precise orbit determination (MPOD) strategy,with which clock error elimination algorithm is applied to separate orbital and clock estimates to improve numerical efficiency.Satellite Laser Ranging (SLR) data are used to evaluate User Ranging Error (URE),which is the orbital error projected on a receiver's line-of-sight direction.Two-way radio-wave time transfer measurements are used to evaluate clock errors.Experimenting with data from the regional tracking network,we conclude that the fitting of code data is better than 1 m in terms of Root-Mean-Square (RMS),and fitting of carrier phase is better than 1 cm.For orbital evaluation,difference between computed receiver-satellite ranging based on estimated orbits and SLR measurements is better than 1 m (RMS).For clock estimates evaluation,2-hour linear-fitting shows that the satellite clock rates are about 1.E-10 s/s,while receiver clock rates are about 1×10 13-1×10 12 s/s.For the 72-hour POD experiment,the average differences between POD satellite clock rates estimates and clock measurements based on TS system are about 1×10 13 s/s,and for receiver clock rates,the differences are about 1×10 15 s/s.ZHOU ShanShi HU XiaoGong WU Bin LIU Li QU WeiJing GUO Rui HE Feng CAO YueLing Wu XiaoLi ZHU LingFeng SHI Xin TAN HongLi 2011Science China(Physics,Mechanics & Astronomy)2011,54,6:44
3Tumor suppressor miR-128-3p inhibits metastasis and epithelial-mesenchymal transition by targeting ZEB1 in esophageal squamous-cell cancer显示文摘MicroRNAs (miRNAs ) 是在 post-transcriptional 层次调整多重生物功能的一些短 RNA,例如 tumorigenic 过程,煽动性的损害和房间 apoptosis。(ZEB1 ) 锌手指电子盒子有约束力的 homeobox 因素 1 是上皮间充质的转变(EMT ) 的一个关键调停人。它包括人的食道的有鳞房间的癌(ESCC ) 导致各种各样的癌症的恶意的前进。在这研究,我们发现 miR-128-3p 由使用 PCR 是在 ESCC 纸巾和房间的 downregulated。而且, miR-128-3p 的下面调整的表示被证明与 ESCC 病人的差的预后被联系并且可能被认为是一个独立预示的因素。然后,我们在 ESCC 房间检验了 miR-128-3p 的角色,并且发现 miR-128-3p 能在 vitro 压制房间迁居和侵略。而且, ZEB1 被证实是由酶记者试金的 miR-128-3p 的一个直接目标。营救实验证明 EMT 被 miR-128-3p 经由 ZEB1 的抑制调整。一起拿所有,我们断定 miR-128-3p 压制 EMT,经由 ZEB1 的转移,和 miR-128-3p 可以是在 ESCC 的一个批评调停人。Lili Zhao Rui Li Shanling Xu Yi Li Pei Zhao Wei Dong Zhenjun Liu Qian Zhao Bo Tan 2018Acta Biochimica et Biophysica Sinica2018,50,2:21
4Management of granulomatous lobular mastitis: an international multidisciplinary consensus(2021 edition)显示文摘Granulomatous lobular mastitis(GLM) is a rare and chronic benign inflammatory disease of the breast. Difficulties exist in the management of GLM for many front-line surgeons and medical specialists who care for patients with inflammatory disorders of the breast. This consensus is summarized to establish evidence-based recommendations for the management of GLM. Literature was reviewed using PubMed from January 1, 1971 to July 31, 2020. Sixty-six international experienced multidisciplinary experts from 11 countries or regions were invited to review the evidence.Levels of evidence were determined using the American College of Physicians grading system, and recommendations were discussed until consensus. Experts discussed and concluded 30 recommendations on historical definitions,etiology and predisposing factors, diagnosis criteria, treatment, clinical stages, relapse and recurrence of GLM. GLM was recommended as a widely accepted definition. In addition, this consensus introduced a new clinical stages and management algorithm for GLM to provide individual treatment strategies. In conclusion, diagnosis of GLM depends on a combination of history, clinical manifestations, imaging examinations, laboratory examinations and pathology.The approach to treatment of GLM should be applied according to the different clinical stage of GLM. This evidencebased consensus would be valuable to assist front-line surgeons and medical specialists in the optimal management of GLM.Qian-Qian Yuan Shu-Yuan Xiao Omar Farouk Yu-Tang Du Fereshte Sheybani Qing Ting Tan Sami Akbulut Kenan Cetin Afsaneh Alikhassi Rami Jalal Yaghan Irmak Durur-Subasi Fatih Altintoprak Tae Ik Eom Fatih Alper Mustafa Hasbahceci David Martínez-Ramos Pelin Seher Oztekin Ava Kwong Cedric W.Pluguez-Turul Kirstyn EBrownson Shirish Chandanwale Mehran Habib Liu-Yi Lan Rui Zhou Xian-Tao Zeng Jiao Bai Jun-Wen Bai Qiong-Rong Chen Xing Chen Xiao-Ming Zha Wen-Jie Dai Zhi-Jun Dai Qin-Yu Feng Qing-Jun Gao Run-Fang Gao Bao-San Han Jin-Xuan Hou Wei Hou Hai-Ying Liao Hong Luo Zheng-Ren Liu Jing-Hua Lu Bin Luo Xiao-Peng Ma Jun Qian Jian-Yong Qin Wei Wei Gang Wei Li-Ying Xu Hui-Chao Xue Hua-Wei Yang Wei-Ge Yang Chao-Jie Zhang Fan Zhang Guan-Xin Zhang Shao-Kun Zhang Shu-Qun Zhang Ye-Qiang Zhang Yue-Peng Zhang Sheng-Chu Zhang Dai-Wei Zhao Xiang-Min Zheng Le-Wei Zheng Gao-Ran Xu Wen-Bo Zhou Gao-Song Wu 2022Military Medical Research2022,9,4:13
5N-methyl-D-aspartic acid receptor 1 (NMDAR1) aggravates secondary inflammatory damage induced by hemin-NLRP3 pathway after intracerebral hemorrhage显示文摘Xun Weng Yan Tan Xiang Chu Xiao-Feng Wu Rui Liu Yue Tian Lin Li Feng Guo Qing Ouyang Lei Li 2015Chinese Journal of Traumatology2015,18,5:12
6Clinical value of contrast-enhanced ultrasonography in the characterization of focal liver lesions:a prospective multicenter trial显示文摘BACKGROUND:Contrast-enhanced ultrasonography(CEUS) is increasingly accepted in clinical settings for diagnostic imaging of focal liver lesions(FLLs).This study aimed to assess the efficacy of CEUS in the characterization of FLLs in comparison with final diagnosis based on gold standard assessment. METHODS:The study was approved by the local ethics committee and participating patients provided written informed consent.A total of 148 patients with 164 FLLs were studied.Unenhanced ultrasonography(US)and CEUS were performed using fundamental and harmonic imaging,respectively.Contrast enhancement was assessed during the arterial,portal and late vascular phases after intravenous administration of contrast(SonoVue?,Bracco, Italy).Sensitivity,specificity and diagnostic accuracy of USand CEUS were compared in identifying the lesion as benign, malignant or indeterminate and its actual tumor type.Final diagnosis was established by biopsy(129/164),MR imaging (11/164)or medical history(24/164). RESULTS:When compared to the gold standard,the number of indeterminate diagnoses was reduced from 56.7%(93/164)as assessed by fundamental imaging to 6.1%(10/164)after SonoVue?enhanced US examination. Sensitivity and specificity improved from 49%and 25% at baseline US to 93%and 75%with CEUS,respectively (P<0.01).Diagnostic accuracy of CEUS was 88%in contrast to 41%of baseline US. CONCLUSION:SonoVueenhanced US improves the characterization of FLLs and may limit the need for further investigations.Wang, Wen-Ping Wu, Ying Luo, Yan Li, Rui Zhou, Xiao-Dong Zhang, Jun Qian, Chao-Wen Tan, Xu-Yan Xu, Qing-Hua Wang, Yan Yuan, Jian-Jun 2009Hepatobiliary & Pancreatic Diseases International2009,8,4:10
7Ultrafast hydrogen bond dynamics of liquid water revealed by terahertz-induced transient birefringence显示文摘The fundamental properties of water molecules,such as their molecular polarizability,have not yet been clarified.The hydrogen bond network is generally considered to play an important role in the thermodynamic properties of water.The terahertz(THz)Kerr effect technique,as a novel tool,is expected to be useful in exploring the low-frequency molecular dynamics of liquid water.Here,we use an intense and ultrabroadband THz pulse(peak electric field strength of 14.9 MV/cm,centre frequency of 3.9 THz,and bandwidth of 1–10 THz)to resonantly excite intermolecular modes of liquid water.Bipolar THz field-induced transient birefringence signals are observed in a free-flowing water film.We propose a hydrogen bond harmonic oscillator model associated with the dielectric susceptibility and combine it with the Lorentz dynamic equation to investigate the intermolecular structure and dynamics of liquid water.We mainly decompose the bipolar signals into a positive signal caused by hydrogen bond stretching vibration and a negative signal caused by hydrogen bond bending vibration,indicating that the polarizability perturbation of water presents competing contributions under bending and stretching conditions.A Kerr coefficient equation related to the intermolecular modes of water is established.The ultrafast intermolecular hydrogen bond dynamics of water revealed by an ultrabroadband THz pump pulse can provide further insights into the transient structure of liquid water corresponding to the pertinent modes.Hang Zhao Yong Tan Liangliang Zhang Rui Zhang Mostafa Shalaby Cunlin Zhang Yuejin Zhao Xi-Cheng Zhang 2020Light(Science & Applications)2020,9,1:10
8Betulin from Hedyotis hedyotidea ameliorates concanavalin A-induced and T cell-mediated autoimmune hepatitis in mice显示文摘Hedyotis hedyotidea 为自体免疫的疾病的治疗在繁体中文药被使用了。然而,为效果位于下面的机制仍然保持未知。我们以前证明在从 H hedyotidea 提取的 11 混合物之中, betulin 在 T 房间激活上生产了最强壮的镇压效果。这里,我们在位于效果下面的老鼠和机制对尖锐自体免疫的肝炎检验了 betulin 的 hepatoprotective 效果。刚孤立的老鼠 splenocytes 与 concanavalin A 被刺激(反对 A, 5 g/mL ) 面对 betulin,房间增长与 CSFE 冲淡被估计试金。老鼠与 betulin 被注射(10, 20 mg ?Yong-qin ZHOU Xiu-fang WENG Rui DOU Xiao-sheng TAN Tian-tian ZHANG Jin-bo FANG Xiong-wen WU 2017Acta Pharmacologica Sinica2017,38,2:10
9A methodology for 3D modeling and visualization of geological objects显示文摘Geological body structure is the product of the geological evolution in the time dimension, which is presented in 3D configuration in the natural world. However, many geologists still record and process their geological data using the 2D or 1D pattern, which results in the loss of a large quantity of spatial data. One of the reasons is that the current methods have limitations on how to express underground geological objects. To analyze and interpret geological models, we present a layer data model to organize different kinds of geological datasets. The data model implemented the unification expression and storage of geological data and geometric models. In addition, it is a method for visualizing large-scaled geological datasets through building multi-resolution geological models rapidly, which can meet the demand of the operation, analysis, and interpretation of 3D geological objects. It proves that our methodology is competent for 3D modeling and self-adaptive visualization of large geological objects and it is a good way to solve the problem of integration and share of geological spatial data.ZHANG LiQiang TAN YuMin KANG ZhiZhong RUI XiaoPing ZHAO YuanYuan LIU Liu 2009Science China Earth Sciences2009,52,7:9
10Radio Channel Measurements and Analysis at 2.4/5GHz in Subway Tunnels显示文摘There is an increasing demand on wireless communications in subway tunnels to provide video surveillance and sensory data for security,maintenance and train control,and to offer various communication or entertainment services(e.g.,Internet,etc.) to passengers as well.The wireless channel in tunnels is quite unique due to the confined space and the waveguide effects.Therefore,modeling the radio channel characteristics in tunnels is critically important for communication systems design or optimization.This paper investigates the key radio channel characteristics of a subway tunnel at 2.4 GHz and 5 GHz,such as the path loss,root mean square(RMS) delay spread,channel stationarity,Doppler shift,and channel capacity.The field measurements show that channel characteristics in tunnels are highly location-dependent and there exist abundant components in Doppler shift domain.In the straight section of the subway tunnel,the measured path loss exponents are close to1.6,lower than that in free space.LI Jinxing ZHAO Youping ZHANG Jing JIANG Rui TAO Cheng TAN Zhenhui 2015China Communications2015,12,1:9
11Epigenetic repression of miR-132 expression by the hepatitis B virus x protein in hepatitis B virus-related hepatocellular carcinoma显示文摘Xufu Wei Cui Tan Chengyong Tang Guosheng Ren Tingxiu Xiang Zhu Qiu Rui Liu Zhongjun Wu 2013Cellular Signalling2013,,5:8
12Behavioral Abnormality along with NMDAR-related CREB Suppression in Rat Hippocampus after Shortwave Exposure显示文摘Objective To estimate the detrimental effects of shortwave exposure on rat hippocampal structure and function and explore the underlying mechanisms. Methods One hundred Wistar rats were randomly divided into four groups(25 rats per group) and exposed to 27 MHz continuous shortwave at a power density of 5, 10, or 30 m W/cm^2 for 6 min once only or underwent sham exposure for the control. The spatial learning and memory, electroencephalogram(EEG), hippocampal structure and Nissl bodies were analysed. Furthermore, the expressions of N-methyl-D-aspartate receptor(NMDAR) subunits(NR1, NR2 A, and NR2 B), c AMP responsive element-binding protein(CREB) and phosphorylated CREB(p-CREB) in hippocampal tissue were analysed on 1, 7, and 14 days after exposure. Results The rats in the 10 and 30 m W/cm^2 groups had poor learning and memory, disrupted EEG oscillations, and injured hippocampal structures, including hippocampal neurons degeneration, mitochondria cavitation and blood capillaries swelling. The Nissl body content was also reduced in the exposure groups. Moreover, the hippocampal tissue in the 30 m W/cm^2 group had increased expressions of NR2 A and NR2 B and decreased levels of CREB and p-CREB. Conclusion Shortwave exposure(27 MHz, with an average power density of 10 and 30 m W/cm^2) impaired rats' spatial learning and memory and caused a series of dose-dependent pathophysiological changes. Moreover, NMDAR-related CREB pathway suppression might be involved in shortwave-induced structural and functional impairments in the rat hippocampus.YU Chao BAI Yan Xin XU Xin Ping GAO Ya Bing HAO Yan Hui WANG Hui TAN Sheng Zhi LI Wen Chao ZHANG Jing YAO Bin Wei DONG Ji ZHAO Li PENG Rui Yun 2019Biomedical and Environmental Sciences2019,32,3:7
13BiCuSeO as state-of-the-art thermoelectric materials for energy conversion:from thin films to bulks显示文摘BiCuSeO-based thermoelectric material has attracted great attention as state-of-the-art thermoelectric materials since it was first reported in 2010. In this review,we update the studies on the BiCuSeO thin films first.Then, we focus on the most recent progress of multiple approaches that enhance the thermoelectric performance including advanced synthesized technologies,notable mechanisms for higher power factor(optimizing carrier concentration, carrier mobility, Seebeck coefficient)and doping effects predicted by calculation. And finally,aiming at further enhancing the performance of these materials and ultimately commercial application, we give a brief discussion on the urgent issues to which should be paid close attention.Rui Liu Xing Tan Yao-Chun Liu Guang-Kun Ren Jin-Le Lan Zhi-Fang Zhou Ce-Wen Nan Yuan-Hua Lin 2018Rare Metals2018,37,4:7
14Real-time Microwave Exposure Induces Calcium Efflux in Primary Hippocampal Neurons and Primary Cardiomyocytes显示文摘Objective To detect the effects of microwave on calcium levels in primary hippocampal neurons and primary cardiomyocytes by the real-time microwave exposure combined with laser scanning confocal microscopy. Methods The primary hippocampal neurons and primary cardiomyocytes were cultured and labeled with probes, including Fluo-4 AM, Mag-Fluo-AM, and Rhod-2, to reflect the levels of whole calcium [Ca^(2+)], endoplasmic reticulum calcium [Ca^(2+)]ER, and mitochondrial calcium [Ca^(2+)]MIT, respectively. Then, the cells were exposed to a pulsed microwave of 2.856 GHz with specific absorption rate(SAR) values of 0, 4, and 40 W/kg for 6 min to observe the changes in calcium levels. Results The results showed that the 4 and 40 W/kg microwave radiation caused a significant decrease in the levels of [Ca^(2+)], [Ca^(2+)]ER, and [Ca^(2+)]MIT in primary hippocampal neurons. In the primary cardiomyocytes, only the 40 W/kg microwave radiation caused the decrease in the levels of [Ca^(2+)], [Ca^(2+)]ER, and [Ca^(2+)]MIT. Primary hippocampal neurons were more sensitive to microwave exposure than primary cardiomyocytes. The mitochondria were more sensitive to microwave exposure than the endoplasmic reticulum. Conclusion The calcium efflux was occurred during microwave exposure in primary hippocampal neurons and primary cardiomyocytes. Additionally, neurons and mitochondria were sensitive cells and organelle respectively.WANG Hui ZHANG Jing HU Shao Hua TAN Sheng Zhi ZHANG Bo ZHOU Hong Mei PENG Rui Yun 2018Biomedical and Environmental Sciences2018,31,8:7
15The biological effect of recombinant humanized collagen on damaged skin induced by UV-photoaging:An in vivo study显示文摘The application of medical devices to repair skin damage is clinically accepted and natural polymer enjoys an important role in this field,such as collagen or hyaluronic acid,etc.However,the biosafety and efficacy of these implants are still challenged.In this study,a skin damage animal model was prepared by UV-photoaging and recombinant humanized type Ⅲ collagen(rhCol Ⅲ)was applied as a bioactive material to implant in vivo to study its biological effect,comparing with saline and uncrosslinked hyaluronic acid(HA).Animal skin conditions were non-invasively and dynamically monitored during the 8 weeks experiment.Histological observation,specific gene expression and other molecular biological methods were applied by the end of the animal experiment.The results indicated that rhCol Ⅲ could alleviate the skin photoaging caused by UV radiation,including reduce the thickening of epidermis and dermis,increase the secretion of Collagen Ⅰ(Col Ⅰ)and Collagen Ⅲ(Col Ⅲ)and remodel of extracellular matrix(ECM).Although the cell-material interaction and mechanism need more investigation,the effect of rhCol Ⅲ on damaged skin was discussed from influence on cells,reconstruction of ECM,and stimulus of small biological molecules based on current results.In conclusion,our findings provided rigorous biosafety information of rhCol Ⅲ and approved its potential in skin repair and regeneration.Although enormous efforts still need to be made to achieve successful translation from bench to clinic,the recombinant humanized collagen showed superiorities from both safety and efficacy aspects.Jing Wang He Qiu Yang Xu Yongli Gao Peijie Tan Rui Zhao Zhanhong Liu Yajun Tang Xiangdong Zhu Chongyun Bao Hang Wang Hai Lin Xingdong Zhang 2022Bioactive Materials2022,7,5:7
16Oxyvanite V3O5:A new intercalation-type anode for lithium-ion battery显示文摘In the present study,V3O5 microcrystals that synthesized via vacuum calcination are employed as anodes for lithium-ion batteries(LIBs)for the first time.Despite the widely observed sluggish reaction kinetics and poor cycling stability in most microsized transition metal oxides,the V3O5 microcrystals exhibit excellent rate capability(specific capacities of 144 and 125 mAh g^−1 are achieved at extremely high current densities of 20 and 50 A g^−1,respectively)and long-term cycling performance(specific capacity of 117 mAh g^−1 is sustained over 2000 cycles at 50 A g^−1).It is ascribed to the three-dimensional open-framework structure of the V3O5 microcrystals as a major factor in dictating the fast reaction kinetics(lithium diffusion coefficient:~10−9 cm^2 s^−1).In addition,significant insight into the reaction mechanism of the V3O5 microcrystals in concomitant its phase evolution are obtained from ex-situ XRD study,revealing that the V3O5 microcrystals undergo intercalation reaction with insignificant structural change in response to lithiation/delithiation.Dong Chen Huiteng Tan Xianhong Rui Qi Zhang Yuezhan Feng Hongbo Geng Chengchao Li Shaoming Huang Yan Yu 2019InfoMat2019,1,2:6
17The ubiquitin-specific protease 17 is involved in virus-triggered type I IFN signaling显示文摘病毒的感染开始激活抄写因素的一系列发信号的串联原子因素 kappa B 和干扰素规章的因素 3,它协作为类型导致基因的抄写我干扰素(IFN ) 和另外的 cytokines。这里,我们报导 deubiquitinating 酶 ubiquitin 特定的朊酶(USP17 ) 17 为导致病毒的 RIG-I- 和黑瘤被要求联系区别的 protein-5 (MDA5 ) 调停了类型我 IFN 发信号。内长的 USP17 击倒禁止的病毒 -- ,细胞质 poly (我: C )- 并且(dA:dT ) poly 导致了 IFN- 尾倡导者和细胞的抗病毒的回答的激活。我们进一步 USP17 发现那击倒禁止了 RIG-I- 和 IFN- 尾倡导者的导致 MDA5 然而并非下游的导致使活跃之物的激活,它随 RIG-I 和 MDA5 的 ubiquitination 层次的增加被相关。一起拿,我们的调查结果建议 USP17 通过 RIG-I 和 MDA5 的 deubiquitination 工作调整导致病毒的类型我 IFN 发信号。Rui Chen Lu Zhang Bo Zhong Bo Tan Yu Liu Hong-Bing Shu 2010Cell Research2010,20,7:6
18Modulation of expression of P16 and Her2 in rat breast tissues of mammary hyperplasia model by external use of Rupifang Extract显示文摘OBJECTIVE:To observe the effect of Rupifang Extract in external use on expression of proto-oncogenes her2 and tumor suppression genes p16 in rat breast tissues of mammary hyperplasia model.To explore the mechanisms of Rupifang Extract in external use for preventing and treating mammary hyperplasia.METHODS:Thirty virginal female Wistar rats were randomized into 5 groups,6 in each,A:blank control group;B:model group;C:the low dose group of Rupifang;D:the middle dose group of Rupifang;and E:The high dose group of Rupifang.The mammary hyperplasia rat models were produced by injecting estradiol benzoate and progesterone and irritating by tail nipping.Drug intervention was also launched during the model formation.After 30 days,the expression of her2 and p16 in breast tissues of rats in each group were detected by the SP immunohistochemical method.RESULTS:Compared with Blank control group,the expression of her2 in breast tissues in Model group was higher,and the expression of p16 was lower(P<0.05 or P<0.01).After intervention with Rupifang Extract,compared with Model group,the expression of her2 in breast tissues in Rupifang groups was lower,and the expression of p16 higher(P<0.05 or P<0.01).CONCLUSION:The mechanisms of Rupifang Extract in external application for preventing and treating mammary hyperplasia may be reducing the expression of proto-oncogenes her2 and increasing the expression of tumor suppression genes p16.Guijuan Zhang Dehui Li Hui Guo Rui Liao Bizhu Tan Suyi Zhang Yubin Liu Min Ma Xiaoting Zeng Zhuolong Peng Si Huang Yinghui Zheng Yi Ma 2012Journal of Traditional Chinese Medicine2012,32,4:6
19Complement C7 is a novel risk gene for Alzheimer's disease in Han Chinese显示文摘Alzheimer's disease is the most common neurodegenerative disease,and has a high level of genetic heritability and population heterogeneity.In this study,we performed the whole-exome sequencing of Han Chinese patients with familial and/or early-onset Alzheimer's disease,followed by independent validation,imaging analysis and function characterization.We identified an exome-wide significant rare missense variant rs3792646(p.K420Q)in the C7 gene in the discovery stage(P=1.09×10^(-6),odds ratio=7.853)and confirmed the association in different cohorts and a combined sample(1615 cases and 2832 controls,P_(combined)=2.99×10^(-7),odds ratio=1.930).The risk allele was associated with decreased hippocampal volume and poorer working memory performance in early adulthood,thus resulting in an earlier age of disease onset.Overexpression of the mutant p.K420Q disturbed cell viability,immune activation and β-amyloid processing.Electrophysiological analyses showed that the mutant p.K420Q impairs the inhibitory effect of wild type C7 on the excitatory synaptic transmission in pyramidal neurons.These findings suggested that C7 is a novel risk gene for Alzheimer’s disease in Han Chinese.Deng-Feng Zhang Yu Fan Min Xu Guihong Wang Dong Wang Jin Li Li-Li Kong Hejiang Zhou Rongcan Luo Rui Bi Yong Wu Guo-Dong Li Ming Li Xiong-Jian Luo Hong-Yan Jiang Liwen Tan Chunjiu Zhong Yiru Fang Chen Zhang Nengyin Sheng Tianzi Jiang Yong-Gang Yao 2019National Science Review2019,6,2:6
20Plant Diversity as a Good Indicator of Vegetation Stability in a Typical Plateau Wetland显示文摘Biotic indicators have been widely used to monitor wetland health. However, few studies have explicitly evaluated if plant diversity could serve as a useful community-level indicator of wetland stability,especially when wetlands are confronted with anthropogenic perturbations. Based on three-year record of wetland plant species abundance in Napahai plateau wetland, Shangri-la under the influence of varying anthropogenic perturbation types, our study tests the impact of such perturbations on plant richness and the relationship between ecosystem temporal stability and plant richness, and further assesses the effectiveness of using plant diversity indicator to probe ecosystem temporal stability of Napahai plateau wetland and the potential mechanisms. The results showed that anthropogenic perturbations could have contributed significantly to realistic variation in plant diversity, and further demonstrated that ecosystem temporal stability was positively related to realistic variation in plant diversity. In particular, communities with high levels of diversity might have better capacity to dampen perturbation impacts than communities with low levels of diversity, and statistical averaging could have played an important role in causing greater stability in more diverse communities. Also, asynchrony might have a stabilizing effect on community stability, and diversity could have stabilized communities through both species asynchrony and population stability propagation. Therefore, our results suggest that plant diversity could be used as a useful indicator of the stability conditions of plateau wetland ecosystems confronted with anthropogenic perturbations, and the preservation of plant communities at sufficient abundance and diversity is necessary for maintaining healthy plateau wetlands and for sustaining their essential ecosystem functions and services.LI Wei TAN Rui YANG Yu-ming WANG Juan 2014Journal of Mountain Science2014,11,2:5
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