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| 1 | Cardiomyocyte overexpression of miR-27b induces cardiac hypertrophy and dysfunction in mice显示文摘最近的研究开始在心脏的肥大和机能障碍的致病揭示了 microRNAs (miRNAs ) 的关键角色。在这研究,我们测试了是否转变生长 factor-β(TGF-β) 调整 miRNA 在心脏的肥大和心失败(HF ) 的发展起了一个枢轴的作用。我们观察到 miR-27b 是在 cardiomyocyte 特定的 Smad4 猛烈老鼠的心的 upregulated,它开发了心脏的肥大。在 vitro,实验证明 miR-27b 表示能被 TGF-β 禁止; 1 并且它的 overexpression 支持了 hypertrophic 房间生长,当 miR-27b 抑制导致了 hypertrophic 房间的抑制时,生长由 phenylephrine (PE ) 引起了处理。而且,有 miR-27b 的 cardiomyocyte 特定的 overexpression 的转基因的老鼠的分析表明 miR-27b overexpression 是足够的导致心脏的肥大和机能障碍。我们验证了 peroxisome 激活 proliferator 的 receptor-γ(PPAR-γ) 作为在 cardiomyocyte 的 miR-27b 的一个直接目标。一致地, miR-27b 转基因的老鼠显著地显示了 PPAR-γ 的底层;比控制鼠标。而且,在用在一只 pressure-overload-induced 老鼠的特定的 antagomir 的 miR-27b 的 vivo silencing, HF 的模型增加了心脏的 PPAR-γ表示,稀释心脏的肥大和机能障碍。我们的学习的结果表明那 TGF-β 1-regulated miR-27b 涉及心脏的肥大的规定,并且为心脏病作为一个有效治疗学的目标验证 miR-27b。 | Jian Wang Yao Song Yan Zhang Han Xiao Qiang Sun Ning Hou Shuilong Guo Youliang Wang Kaiji Fan Dawei Zhan Lagabaiyila Zha Yang Cao Zhenhua Li Xuan Cheng Youyi Zhang Xiao Yang | 2012 | Cell Research2012,22,3: | 36 |
| 2 | Basic Soil Productivity of Spring Maize in Black Soil Under Long-Term Fertilization Based on DSSAT Model显示文摘Increasing basic farmland soil productivity has significance in reducing fertilizer application and maintaining high yield of crops. In this study, we defined that the basic soil productivity(BSP) is the production capacity of a farmland soil with its own physical and chemical properties for a specific crop season under local environment and field management. Based on 22-yr(1990-2011) long-term experimental data on black soil(Typic hapludoll) in Gongzhuling, Jilin Province, Northeast China, the decision support system for an agro-technology transfer(DSSAT)-CERES-Maize model was applied to simulate the yield by BSP of spring maize(Zea mays L.) to examine the effects of long-term fertilization on changes of BSP and explore the mechanisms of BSP increasing. Five treatments were examined:(1) no-fertilization control(control);(2) chemical nitrogen, phosphorus, and potassium(NPK);(3) NPK plus farmyard manure(NPKM);(4) 1.5 time of NPKM(1.5NPKM) and(5) NPK plus straw(NPKS). Results showed that after 22-yr fertilization, the yield by BSP of spring maize significantly increased 78.0, 101.2, and 69.4% under the NPKM, 1.5NPKM and NPKS, respectively, compared to the initial value(in 1992), but not significant under NPK(26.9% increase) and the control(8.9% decrease). The contribution percentage of BSP showed a significant rising trend(P<0.05) under 1.5NPKM. The average contribution percentage of BSP among fertilizations ranged from 74.4 to 84.7%, and ranked as 1.5NPKM>NPKM>NPK≈NPKS, indicating that organic manure combined with chemical fertilizers(1.5NPKM and NPKM) could more effectively increase BSP compared with the inorganic fertilizer application alone(NPK) in the black soil. This study showed that soil organic matter(SOM) was the key factor among various fertility factors that could affect BSP in the black soil, and total N, total P and/or available P also played important role in BSP increasing. Compared with the chemical fertilization, a balanced chemical plus manure or straw fertilization(NPKM or NPKS) not only increased the concentrations of soil nutrient, but also improved the soil physical properties, and structure and diversity of soil microbial population, resulting in an iincrease of BSP. We recommend that a balanced chemical plus manure or straw fertilization(NPKM or NPKS) should be the fertilization practices to enhance spring maize yield and improve BSP in the black soil of Northeast China. | ZHA Yan WU Xue-ping HE Xin-hua ZHANG Hui-min GONG Fu-fei CAI Dian-xiong ZHU Ping GAO Hong-jun | 2014 | Journal of Integrative Agriculture2014,13,3: | 25 |
| 3 | Metabonomic phenotype and identification of “heart blood stasis obstruction pattern” and “qi and yin deficiency pattern” of myocardial ischemia rat models显示文摘The traditional Chinese medicine concepts of 'Xinxueyuzuzheng (heart blood stasis obstruction pattern)' and 'Qiyinliangxuzheng (qi and yin deficiency pattern)' for myocardial ischemia rat models were constructed in the present study. Endogenous metabolites in rat plasma were analyzed using the GC/TOF-MS-based metabonomic method. Significant metabolic differences were observed between the control and two model groups, and the three groups were distinguished clearly by pattern recognition. Compared with those of the control, the levels of hydroxyproline, threonic acid, glutamine and citric acid were strikingly up or down-regulated in model rats. The metabolites contributing most to the classification between the two 'pattern' rats were identified, such as valine, serine, threonine, ornithine, hydroxyproline, lysine, 2-hydroxybutanoic acid, 3-hydroxybutanoic acid, galactofuranose and inositol. These compounds were indicated as the potential biomarkers. The results suggested that the two 'patterns' are involved in dysfunction in oxidative stress, energy metabolism and amino acid metabolism. These findings also provided the substantial foundation for exploring the scientific connotation of these two 'Zhengxing (pattern types)' of myocardial ischemia, and 'Bianzheng (pattern identification)'. | YAN Bei1, A JiYe1, HAO HaiPing1, WANG GuangJi1, ZHU XuanXuan2, 3, ZHA WeiBin1, LIU LinSheng1, GUAN EnZe3, ZHANG Ying1, GU ShengHua1, HUANG Qing1 & ZHENG YuanTing1 1Key Laboratory of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China 2Pharmacological Laboratory of Clinical Research Institute, Jiangsu Provincial Hospital of Traditional Chinese Medicine, Nanjing 210029, China 3College of Pharmacy, Nanjing University of Traditional Chinese Medicine, Nanjing 210029, China | 2009 | Science China(Life Sciences)2009,52,11: | 19 |
| 4 | Activation of the PI3K/AKT pathway mediates FSH-stimulated VEGF expression in ovarian serous cystadenocarclnoma显示文摘有证据建议那刺激滤泡的荷尔蒙(FSH ) 能由在癌症细胞增加脉管的 endothelial 生长因素(VEGF ) 表示便于卵巢的癌症的 neovascularization,尽管这个过程的内在的分子的机制不是众所周知的。因此,我们在卵巢的癌症房间线 SKOV-3 和 ES-2 在 VEGF 表示上调查了 FSH 的效果。有 FSH 的治疗显著地在一个剂量依赖者和时间依赖者举止增加了 VEGF 表示。另外, FSH 治疗提高了 survivin 和组织缺氧可诱导的 factor-1 (HIF-1 ) 的表示。survivin 或 HIF-1 击倒压制的 VEGF 表示,但是 survivin 仅仅击倒禁止的刺激 FSH 的 VEGF 表示。有 LY294002 的预告的处理,一个 phosphoinositide 3-kinase (PI3K )/AKT 禁止者,抵销 FSH,而是治疗与 U0126 导致的 survivin 的提高的表示,激活 mitogen 的蛋白质 kinase/extracellular 调整信号的 kinase 禁止者,没有如此的效果。我们进一步证明卵巢的浆液的 cystadenocarcinoma 样品有积极 AKT 和比的染色的 phosphorylated AKT (pAKT ) 蛋白质的许多更高的发生良性的卵巢的 cystadenoma 取样了(p < 0.01 ) 。5 年的幸存率仅仅在有卵巢的浆液的 cystadenocarcinoma 的病人是大约 15% 有 AKT 和 pAKT 表示,而它在没有 AKT 或 pAKT 表示的那些是大约 80% 。一起拿,这些结果显示 FSH 由 upregulating 增加 VEGF 的表示 survivin 的表示,它被发信号的 PI3K/AKT 激活小径。在 survivin 和 VEGF 的刺激 FSH 的表示理解 PI3K/AKT 小径的角色将为与卵巢的浆液的 cystadenocarcinoma 为病人评估预后并且为对这疾病追求有效治疗是有益的。 | Yan Huang Keqin Hua Xianrong Zhou Hongyan Jin Xiaojun Chen Xin Lu Yinhua Yu Xiliang Zha Youji Feng | 2008 | Cell Research2008,18,7: | 17 |
| 5 | Differential regulations of blood pressure and perturbed metabolism by total ginsenosides and conventional antihypertensive agents in spontaneously hypertensive rats显示文摘 | Ji-ye AA Guang-ji WANG Hai-ping HAO Qing HUANG Yi-hong LU Bei YAN Wei-bin ZHA Lin-sheng LIU An KANG | 2010 | Acta Pharmacologica Sinica2010,31,8: | 14 |
| 6 | Long-term organic and inorganic fertilizations enhanced basic soil productivity in a fluvo-aquic soil显示文摘The improvement of soil productivity depends on a rational input of water and nutrients, optimal field management, and the increase of basic soil productivity(BSP). In this study, BSP is defined as the productive capacity of a farmland soil with its own physical and chemical properties for a specific crop season under local field management. Based on 19-yr data of the long-term agronomic experiments(1989–2008) on a fluvo-aquic soil in Zhengzhou, Henan Province, China, the decision support system for agrotechnology transfer(DSSAT ver. 4.0) crop growth model was used to simulate yields by BSP of winter wheat(Triticum aestivium L.) and summer maize(Zea mays L.) to examine the relationship between BSP and soil organic carbon(SOC) under long-term fertilization. Five treatments were included:(1) no fertilization(control),(2) nitrogen, phosphorus and potassium fertilizers(NPK),(3) NPK plus manure(NPKM),(4) 1.5 times of NPKM(1.5NPKM), and(5) NPK plus straw(NPKS). After 19 yr of treatments, the SOC stock increased 16.7, 44.2, 69.9, and 25.2% under the NPK, NPKM, 1.5NPKM, and NPKS, respectively, compared to the initial value. Among various nutrient factors affecting contribution percentage of BSP to winter wheat and summer maize, SOC was a major affecting factor for BSP in the fluvo-aquic soil. There were significant positive correlations between SOC stock and yields by BSP of winter wheat and summer maize(P<0.01), and yields by BSP of winter wheat and summer maize increased 154 and 132 kg ha^(–1) when SOC stock increased 1 t C ha^(–1). Thus, increased SOC accumulation is a crucial way for increasing BSP in fluvo-aquic soil. The manure or straw combined application with chemical fertilizers significantly enhanced BSP compared to the application of chemical fertilizers alone. | ZHA Yan WU Xue-ping GONG Fu-fei XU Ming-gang ZHANG Hui-min CHEN Li-ming HUANG Shao-min CAI Dian-xiong | 2015 | Journal of Integrative Agriculture2015,14,12: | 7 |
| 7 | Mitochondrial aldehyde dehydrogenase(ALDH2)rescues cardiac contractile dysfunction in an APP/PS1 murine model of Alzheimer’s disease via inhibition of ACSL4-dependent ferroptosis显示文摘Alzheimer’s disease(AD)is associated with high incidence of cardiovascular events but the mechanism remains elusive.Our previous study reveals a tight correlation between cardiac dysfunction and low mitochondrial aldehyde dehydrogenase(ALDH2)activity in elderly AD patients.In the present study we investigated the effect of ALDH2 overexpression on cardiac function in APP/PS1 mouse model of AD.Global ALDH2 transgenic mice were crossed with APP/PS1 mutant mice to generate the ALDH2-APP/PS1 mutant mice.Cognitive function,cardiac contractile,and morphological properties were assessed.We showed that APP/PS1 mice displayed significant cognitive deficit in Morris water maze test,myocardial ultrastructural,geometric(cardiac atrophy,interstitial fibrosis)and functional(reduced fractional shortening and cardiomyocyte contraction)anomalies along with oxidative stress,apoptosis,and inflammation in myocardium.ALDH2 transgene significantly attenuated or mitigated these anomalies.We also noted the markedly elevated levels of lipid peroxidation,the essential lipid peroxidation enzyme acyl-CoA synthetase long-chain family member 4(ACSL4),the transcriptional regulator for ACLS4 special protein 1(SP1)and ferroptosis,evidenced by elevated NCOA4,decreased GPx4,and SLC7A11 in myocardium of APP/PS1 mutant mice;these effects were nullified by ALDH2 transgene.In cardiomyocytes isolated from WT mice and in H9C2 myoblasts in vitro,application of Aβ(20μM)decreased cell survival,compromised cardiomyocyte contractile function,and induced lipid peroxidation;ALDH2 transgene or activator Alda-1 rescued Aβ-induced deteriorating effects.ALDH2-induced protection against Aβ-induced lipid peroxidation was mimicked by the SP1 inhibitor tolfenamic acid(TA)or the ACSL4 inhibitor triacsin C(TC),and mitigated by the lipid peroxidation inducer 5-hydroxyeicosatetraenoic acid(5-HETE)or the ferroptosis inducer erastin.These results demonstrate an essential role for ALDH2 in AD-induced cardiac anomalies through regulation of lipid peroxidation and ferroptosis. | Zhi-yun Zhu Yan-dong Liu Yan Gong Wei Jin Elena Topchiy Subat Turdi Yue-feng Gao Bruce Culver Shu-yi Wang Wei Ge Wen-liang Zha Jun Ren Zhao-hui Pei Xing Qin | 2022 | Acta Pharmacologica Sinica2022,43,1: | 6 |
| 8 | Pitavastatin attenuates AGEs-induced mitophagy via inhibition of ROS generation in the mitochondria of cardiomyocytes显示文摘This study aimed to investigate whether pitavastatin protected against injury induced by advanced glycation end products products(AGEs) in neonatal rat cardiomyocytes,and to examine the underlying mechanisms.Cardiomyocytes of neonatal rats were incubated for 48 hours with AGEs(100 μg/mL),receptor for advanced glycation end products(RAGE),antibody(1 μg/mL) and pitavastatin(600 ng/mL).The levels of p62 and beclinl were determined by Western blotting.Mitochondrial membrane potential(△Ψm) and the generation of reactive oxygen species(ROS) were measured through the JC-1 and DCFH-DA.In the AGEs group,the expression of beclinl was remarkably increased compared to the control group,while the expression of p62 was significantly decreased.AGEs also markedly decreased △Ψm and significantly increased ROS compared with the control group.After treatment with RAGE antibody or pitavastatin,the level of beclinl was markedly decreased compared with the AGEs group,but the level of p62 was remarkably increased.In the AGEs + RAGE antibody group and AGEs+ pitavastatin group,△Ψm was significantly increased and ROS was remarkably decreased compared with the AGEs group.In conclusion,AGEs-RAGE may induce autophagy of cardiomyocytes by generation of ROS and pitavastatin could protect against AGEs-induced injury against cardiomyocytes. | Zhimin Zha Junhong Wang Shiling Li Yan Guo | 2018 | The Journal of Biomedical Research2018,32,4: | 6 |
| 9 | In vivo toxicity of nano-C_60 aggregates complex with atrazine to aquatic organisms显示文摘The present study aims at investigating the potential impacts of the nC60 complex with atrazine on the development of Japanese medaka (Oryzias latipes) embryos and chronic toxicity to D. magna. Although exposure to nC60 below 8 mg/L had no effects on the hatching rate of medaka embryos, it increased the deformity of hatched larvae. Moreover, the presence of nC60 significantly increased the hatching time of the embryos exposed to atrazine. 14-day exposure of D. magna to nC60 significantly reduced offspring production even at a concentration as low as 0.5 mg/L. This indicates that nC60 is able to reduce the ability of D. magna to produce offspring, and therefore would have an impact on population. For atrazine, no significant difference in offspring production was observed. The nC60 complex with atrazine was also found to significantly decrease the reproduction of D. magna, which was similar to the result of exposure to nC60. These results suggest that nC60 would have potential risks to aquatic organisms. Therefore, much attention should be paid to their associations with other contaminants for fullerene's risk assessment. | YAN XiaoMin ZHA JinMiao SHI BaoYou WANG DongSheng WANG ZiJian TANG HongXiao | 2010 | Chinese Science Bulletin2010,55,4: | 5 |
| 10 | Efficient CO_2 capture on low-cost silica gel modified by polyethyleneimine显示文摘In this work,a series of polyethyleneimine(PEI) functionalized commercial silica gel were prepared by wet impregnation method and used as CO 2 sorbent.The as-prepared sorbents were characterized by N 2 adsorption,FT-IR and SEM techniques.CO 2 capture was tested in a fixed bed reactor using a simulated flue gas containing 15.1% CO 2 in a temperature range of 25-100 C.The effects of sorption temperature and amine content on CO 2 uptake of the adsorbents were investigated.The silica gel with a 30 wt% PEI loading manifested the largest CO 2 uptake of 93.4 mg CO 2 /g adsorbent(equal to 311.3 mg CO 2 /g PEI) among the tested sorbents under the conditions of 15.1%(v/v) CO 2 in N 2 at 75 C and atmospheric pressure.Moreover,it was rather low-cost.In addition,the PEI-impregnated silica gel exhibited stable adsorption-desorption behavior during 5 consecutive test cycles.These results suggest that the PEI-impregnated silica gel is a promising and cost-effective sorbent for CO 2 capture from flue gas and other stationary sources with low CO 2 concentration. | Ke Wang Hongyan Shang Lin Li Xinlong Yan Zifeng Yan Chenguang Liu Qingfang Zha | 2012 | Journal of Natural Gas Chemistry2012,21,3: | 4 |
| 11 | The first power generation test of hot dry rock resources exploration and production demonstration project in the Gonghe Basin,Qinghai Province,China显示文摘Hot dry rock(HDR)is a kind of clean energy with significant potential.Since the 1970s,the United States,Japan,France,Australia,and other countries have attempted to conduct several HDR development research projects to extract thermal energy by breaking through key technologies.However,up to now,the development of HDR is still in the research,development,and demonstration stage.An HDR exploration borehole(with 236℃ at a depth of 3705 m)was drilled into Triassic granite in the Gonghe Basin in northwest China in 2017.Subsequently,China Geological Survey(CGS)launched the HDR resources exploration and production demonstration project in 2019.After three years of efforts,a sequence of significant technological breakthroughs have been made,including the genetic model of deep heat sources,directional drilling and well completion in high-temperature hard rock,large-scale reservoir stimulation,reservoir characterization,and productivity evaluation,reservoir connectivity and flow circulation,efficient thermoelectric conversion,monitoring,and geological risk assessment,etc.Then the whole-process technological system for HDR exploration and production has been preliminarily established accordingly.The first power generation test was completed in November 2021.The results of this project will provide scientific support for HDR development and utilization in the future. | Er-yong Zhang Dong-guang Wen Gui-ling Wang Wei-de Yan Wen-shi Wang Cheng-ming Ye Xu-feng Li Huang Wang Xian-chun Tang Wei Weng Kuan Li Chong-yuan Zhang Ming-xing Liang Hong-bao Luo Han-yue Hu Wei Zhang Sen-qi Zhang Xian-peng Jin Hai-dong Wu Lin-you Zhang Qing-da Feng Jing-yu Xie Dan Wang Yun-chao He Yue-wei Wang Zu-bin Chen Zheng-pu Cheng Wei-feng Luo Yi Yang Hao Zhang En-lai Zha Yu-lie Gong Yu Zheng Chang-sheng Jiang Sheng-sheng Zhang Xue Niu Hui Zhang Li-sha Hu Gui-lin Zhu Wen-hao Xu Zhao-xuan Niu Li Yang | 2022 | China Geology2022,5,3: | 4 |
| 12 | Presence of high nitryl chloride in Asian coastal environment and its impact on atmospheric photochemistry显示文摘Nitryl chloride(ClNO2)is a product of nocturnal halogen activation of nitrogen oxides and has potential to impact atmospheric photochemistry.Here we report the first observation result of ClNO2in an Asian environment.The measurements were made with a thermal decomposition chemical ionization mass spectrometer at a coastal site in southern China during late summer of 2012.A clear diurnal pattern of ClNO2was observed with nighttime 1-min average mixing ratio up to 1997 pptv,which is among the highest values ever reported in the world.The elevated ClNO2mixing ratios were observed in plumes from Hong Kong and the Pearl River Delta region compared to the lower levels in maritime air.Calculations suggest that the production of chlorine atom from photolysis of ClNO2in the early morning exceeds the production of hydroxyl radical via ozone photolysis by several factors.Therefore,ClNO2plays an important role in jump-starting the atmospheric photochemistry in polluted marine boundary layer of southern China. | Yee Jun Tham Chao Yan Likun Xue Qiaozhi Zha Xinfeng Wang Tao Wang | 2014 | Chinese Science Bulletin2014,59,4: | 3 |
| 13 | The baroreflex afferent pathway plays a critical role in H_(2)S-mediated autonomic control of blood pressure regulation under physiological and hypertensive conditions显示文摘Hydrogen sulfide(H_(2)S),which is closely related to various cardiovascular disorders,lowers blood pressure(BP),but whether this action is mediated via the modification of baroreflex afferent function has not been elucidated.Therefore,the current study aimed to investigate the role of the baroreflex afferent pathway in H_(2)S-mediated autonomic control of BP regulation.The results showed that baroreflex sensitivity(BRS)was increased by acute intravenous NaHS(a H_(2)S donor)administration to renovascular hypertensive(RVH)and control rats.Molecular expression data also showed that the expression levels of critical enzymes related to H_(2)S were aberrantly downregulated in the nodose ganglion(NG)and nucleus tractus solitarius(NTS)in RVH rats.A clear reduction in BP by the microinjection of NaHS or L-cysteine into the NG was confirmed in both RVH and control rats,and a less dramatic effect was observed in model rats.Furthermore,the beneficial effects of NaHS administered by chronic intraperitoneal infusion on dysregulated systolic blood pressure(SBP),cardiac parameters,and BRS were verified in RVH rats.Moreover,the increase in BRS was attributed to activation and upregulation of the ATP-sensitive potassium(KATP)channels Kir6.2 and SUR1,which are functionally expressed in the NG and NTS.In summary,H_(2)S plays a crucial role in the autonomic control of BP regulation by improving baroreflex afferent function due at least in part to increased KATP channel expression in the baroreflex afferent pathway under physiological and hypertensive conditions. | Ying Li Yan Feng Li Liu Xue Li Xin-yu Li Xun Sun Ke-xin Li Rong-rong Zha Hong-dan Wang Meng-di Zhang Xiong-xiong Fan Di Wu Yao Fan Hao-cheng Zhang Guo-fen Qiao Bai-yan Li | 2021 | Acta Pharmacologica Sinica2021,42,6: | 3 |
| 14 | Method of coupling 1-D unsaturated flow with 3-D saturated flow on large scale显示文摘A coupled unsaturated-saturated water flow numerical model was developed. The water flow in the unsaturated zone is considered the one-dimensional vertical flow, which changes in the horizontal direction according to the groundwater table and the atmospheric boundary conditions. The groundwater flow is treated as the three-dimensional water flow. The recharge flux to groundwater from soil water is considered the bottom flux for the numerical simulation in the unsaturated zone, and the upper flux for the groundwater simulation. It connects and unites the two separated water flow systems. The soil water equation is solved based on the assumed groundwater table and the subsequent predicted recharge flux. Then, the groundwater equation is solved with the predicted recharge flux as the upper boundary condition. Iteration continues until the discrepancy between the assumed and calculated groundwater nodal heads have a certain accuracy. Illustrative examples with different water flow scenarios regarding the Dirichlet boundary condition, the Neumann boundary condition, the atmospheric boundary condition, and the source or sink term were calculated by the coupled model. The results are compared with those of other models, including Hydrus-1D, SWMS-2D, and FEFLOW, which demonstrate that the coupled model is effective and accurate and can significantly reduce the computational time for the large number of nodes in saturated-unsaturated water flow simulation. | Yan ZHU Yuan-yuan ZHA Ju-xiu TONG Jin-zhong YANG | 2011 | Water Science and Engineering2011,4,4: | 3 |
| 15 | The prognostic value of programmed cell death ligand 1expression in non-Hodgkin lymphoma:a meta-analysis显示文摘Objective: Although the prognostic value of programmed cell death-ligand 1(PD-L1) expression in non-Hodgkin lymphoma(NHL) has been evaluated in many studies, the results remain controversial. To investigate the prognostic role of PD-L1 expression and the association between PD-L1 expression and clinicopathological features of NHL, we performed a meta-analysis.Methods: The Pub Med, EMBASE, and Cochrane Library databases were searched up to November 30, 2017. The hazard ratio(HR), 95% confidence interval(CI), and odds ratios(OR) with 95% CIs were combined to evaluate the association of PD-L1 expression with overall survival(OS) and clinicopathological features. Review manager 5.3 and STATA 12.0 were used in this meta-analysis.Results: A total of 2,005 patients across nine studies were enrolled in our meta-analysis, and the pooled results showed that high PD-L1 expression was associated with a poor prognosis(HR=2.04, 95% CI: 1.18–3.54, P=0.01). In the subgroup analysis according to histology types, pooled results demonstrated that an increased PD-L1 expression was an unfavorable prognostic factor for diffuse large B-cell lymphoma(HR=1.92, 95% CI: 1.06–3.48, P=0.03) but not for natural killer/T-cell lymphoma(HR=2.41, 95%CI: 0.47–12.22, P=0.29). Pooled ORs indicated that PD-L1 expression was higher in NHL with international prognostic indices of≥3. However, PD-L1 expression had no correlation with gender, age, disease stage, lactate dehydrogenase level, B symptoms, and germinal center B-cell-like lymphoma.Conclusions: High PD-L1 expression was a poor prognostic biomarker in patients with NHL. Because of our limited sample size,high-quality studies with larger sample sizes are needed to validate our results. | Shu Zha Minghui Zhang Yu Zhang Hongxue Meng Yan Wang Yupeng Liu Jing Jing Lan Huang Mengqi Sun Yue Zhang Qingyuan Zhang | 2018 | Cancer Biology & Medicine2018,15,3: | 2 |
| 16 | Correlation between cold and hot pattern in traditional Chinese medicine and gene expression profiles in rheumatoid arthritis显示文摘Clinical manifestations of rheumatoid arthritis(RA)are diversified,and based on the manifestations,the patients with RA could be classified into different patterns under traditional Chinese medicine.These patterns decide the selection of herbal prescription,and thus they can help find a subset of rheumatoid arthritis patients for a type of therapy.In the present study,we combine genome-wide expression analysis with methods of systems biology to identify the functional gene networks for the sets of clinical symptoms that comprise the major information for pattern classification.Clinical manifestations in rheumatoid arthritis were clustered with factor analysis,and two factors(similar to cold and hot patterns in traditional Chinese medicine)were found.Microarray technology was used to reveal gene expression profiles in CD4^(+)T cells from 21 rheumatoid arthritis patients.Protein-protein interaction information for these genes from databases and literature data was searched.The highly-connected regions were detected to infer significant complexes or pathways in this protein-protein interaction network.The significant pathways and function were extracted from these subnetworks using the Biological Network Gene Ontology tool.The genes significantly related to hot and cold patterns were identified by correlations analysis.MAPK signalling pathway,Wnt signaling pathway,and insulin signaling pathway were found to be related to hot pattern.Purine metabolism was related to both hot and cold patterns.Alanine,aspartate,and tyrosine metabolism were related to cold pattern,and histindine metabolism and lysine degradation were related to hot pattern.The results suggest that cold and hot patterns in traditional Chinese medicine were related to different pathways,and the network analysis might be used for identifying the pattern classification in other diseases. | Miao Jiang Cheng Xiao Gao Chen Cheng Lu Qinglin Zha Xiaoping Yan Weiping Kong Shijie Xu Dahong Ju Pu Xu Youwen Zou Aiping Lu | 2011 | Frontiers of Medicine2011,5,2: | 2 |
| 17 | Characteristics of the TCR Vβ repertoire in imatinib-resistant chronic myeloid leukemia patients with ABL mutations显示文摘Diversity in the T cell receptor(TCR) repertoire provides a miniature defense ability for the T cell immune system that may be related to tumor initiation and progression. Understanding the T cell immune status of leukemia patients is critical for establishing specific immunotherapies. Previous studies have reported abnormal TCR repertoires and clonally expanded TCR V? T cells in chronic myeloid leukemia in chronic phase(CP-CML). In this study, we investigated the distribution and clonality of the TCR V? repertoire in 4 cases with imatinib-resistant CML in blast crisis(BC-CML) with abelson murine leukemia viral oncogene homolog 1(ABL1) kinase domain mutations(KDMs). Examination of TCR V? expression and clonality was performed by reverse transcription-polymerase chain reaction(RT-PCR) and Gene Scan analysis. Significantly skewed TCR V? repertoires were observed in BC-CML patients with different KDMs, and 4 to 8 oligoclonally expanded TCR V? subfamilies could be identified in each sample. Intriguingly, a relatively highly expanded V?9 clone with the same length as complementarity-determining region 3(CDR3)(139 bp) was found in all three CML patients in lymphoid blast crisis(LBC-CML) who had different KDMs, but the clone was not detected in the only CML patient in myeloid blast crisis(MBC-CML). In conclusion, restricted TCR V? repertoire expression and decreased clone complexity was a general phenomenon observed in the BC-CML patients with different KDMs, indicating the T-cell immunodeficiency of these patients. In addition, clonally expanded V?9 T cell clones may indicate a specific immune response to leukemia-associated antigens in LBC-CML patients. | XU Ling LU Yu Hong LAI Jing YU Wei ZHANG Yi Kai JIN Zhen Yi XU Yan CHEN Jie ZHA Xian Feng CHEN Shao Hua YANG Li Jian LI Yang Qiu | 2015 | Science China(Life Sciences)2015,58,12: | 2 |
| 18 | TSP-1 promotes glomerular mesangial cell proliferation and extracellular matrix secretion in Thy-1 nephritis rats显示文摘The proliferation of glomerular mesangial cells (GMC) and secretion of the extracellular matrix (ECM) in rat with Thy-1 nephritis (Thy-1N) resembling human mesangioproliferative glomerulonephritis have been explored for many years; however, the molecular mechanisms of GMC proliferation and ECM production remain unclear. Our previous studies have demonstrated that the thrombospondin-1 (TSP-1) gene was involved in mediating rat GMC proliferation and ECM synthesis induced by sublytic C5b-9 in vitro. In the present study, the roles of the TSP-1 gene in GMC proliferation, ECM production, and urinary protein secretion in Thy-1N rats were determined by using TSP-1 small hairpin RNA, and the results revealed that silencing of the TSP-1 gene in rat renal tissues could diminish GMC proliferation (P < 0.01) and ECM secretion (P < 0.01) as well as urinary protein secretion (P < 0.05) in Thy-1N rats. Together, the current findings suggested that TSP-1 gene expression was required for GMC proliferation and ECM production in Thy-1N rats. | Wen Qiu Yan Li Jianbo Zhou Chenhui Zhao Jing Zhang Kai Shan Dan Zha Yingwei Wang | 2011 | The Journal of Biomedical Research2011,25,6: | 2 |
| 19 | Recent Advances in Two-Dimensional Magnets:Physics and Devices towards Spintronic Applications显示文摘The emergence of low-dimensional nanomaterials has brought revolutionized development of magnetism,as the size effect can significantly influence the spin arrangement.Since the first demonstration of truly two-dimensional magnetic materials(2DMMs)in 2017,a wide variety of magnetic phases and associated properties have been exhibited in these 2DMMs,which offer a new opportunity to manipulate the spin-based devices efficiently in the future.Herein,we focus on the recent progress of 2DMMs and heterostructures in the aspects of their structural characteristics,physical properties,and spintronic applications.Firstly,the microscopy characterization of the spatial arrangement of spins in 2D lattices is reviewed.Afterwards,the optical probes in the light-matter-spin interactions at the 2D scale are discussed.Then,particularly,we systematically summarize the recent work on the electronic and spintronic devices of 2DMMs.In the section of electronic properties,we raise several exciting phenomena in 2DMMs,i.e.,long-distance magnon transport,field-effect transistors,varying magnetoresistance behavior,and(quantum)anomalous Hall effect.In the section of spintronic applications,we highlight spintronic devices based on 2DMMs,e.g.,spin valves,spin-orbit torque,spin field-effect transistors,spin tunneling field-effect transistors,and spin-filter magnetic tunnel junctions.At last,we also provide our perspectives on the current challenges and future expectations in this field,which may be a helpful guide for theorists and experimentalists who are exploring the optical,electronic,and spintronic properties of 2DMMs. | Vertikasari PNingrum Bowen Liu Wei Wang Yao Yin Yi Cao Chenyang Zha Hongguang Xie Xiaohong Jiang Yan Sun Sichen Qin Xiaolong Chen Tianshi Qin Chao Zhu Lin Wang Wei Huang | 2020 | Research2020,,1: | 2 |
| 20 | Ginsenoside 20(S)-Rh2 promotes cellular pharmacokinetics and intracellular antibacterial activity of levofloxacin against Staphylococcus aureus through drug efflux inhibition and subcellular stabilization显示文摘Intracellular Staphylococcus aureus(S.aureus)often causes clinical failure and relapse after antibiotic treatment.We previously found that 20(S)-ginsenoside Rh2[20(S)-Rh2]enhanced the therapeutic effect of quinolones in a mouse model of peritonitis,which we attributed to the increased concentrations of quinolones within bacteria.In this study,we investigated the enhancing effect of 20(S)-Rh2 on levofloxacin(LVF)from a perspective of intracellular bacteria.In S.aureus 25923-infected mice,coadministration of LVF(1.5 mg/kg,i.v.)and 20(S)-Rh2(25,50 mg/kg,i.g.)markedly increased the survival rate,and decreased intracellular bacteria counts accompanied by increased accumulation of LVF in peritoneal macrophages.In addition,20(S)-Rh2(1,5,10μM)dose-dependently increased the uptake and accumulation of LVF in peritoneal macrophages from infected mice without drug treatment.In a model of S.aureus 25923-infected THP-1 macrophages,we showed that 20(S)-Rh2(1,5,10μM)dose-dependently enhanced the intracellular antibacterial activity of LVF.At the cellular level,20(S)-Rh2 increased the intracellular accumulation of LVF by inhibiting P-gp and BCRP.PK–PD modeling revealed that 20(S)-Rh2 altered the properties of the cell but not LVF.At the subcellular level,20(S)-Rh2 did not increase the distribution of LVF in lysosomes but exhibited a stronger sensitizing effect in acidic environments.Molecular dynamics(MD)simulations showed that 20(S)-Rh2 improved the stability of the DNA gyrase–LVF complex in lysosome-like acidic conditions.In conclusion,20(S)-Rh2 promotes the cellular pharmacokinetics and intracellular antibacterial activities of LVF against S.aureus through efflux transporter inhibition and subcellular stabilization,which is beneficial for infection treatment. | Xiao-yang Chen Fei Qian Yao-yao Wang Yan Liu Yuan Sun Wei-bin Zha Kun Hao Fang Zhou Guang-ji Wang Jing-wei Zhang | 2021 | Acta Pharmacologica Sinica2021,42,11: | 2 |