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    题名 作者 年代 出处 被引量
1The Chromosome-Level Reference Genome of Tea Tree Unveils Recent Bursts of Nonautonomous LTR Retrotransposons in Driving Genome Size Evolution显示文摘Dear Editor,The tea tree Camellia sinensis,a member of the genus Camellia in the Theaceae family,includes two major cultivated varieties,C.sinensis var.assamica(CSA\Assam type)and C.sinensis var.sinensis(CSS;Chinese type)(Ming and Bartholomew,2007).Due to the high economic importance of the tea tree,considerable efforts have been made to explore genetic basis of the biosynthesis of natural metabolites that determine health benefits and diverse tea flavors(Shi et al.,2011;Li et al.,2011;Li et al.,2015;Xia et aL,2017;Liu et al.,2019).Qun-Jie Zhang Wei L i Kui Li Hong Nan Cong Shi Yun Zhang Zhang-Yan Dai Yang-Lei Lin Xiao-Lan Yang Yan Tong Dan Zhang Cui Lu Li-Ying Feng Chen-Feng Wang Xiao-Xin Liu Jian-An Huang Wen-Kai Jiang Xing-Hua Wang Xing-Cai Zhang Evan E.Eichler Zhong-Hua Liu and Li-Zhi Gao 2020Molecular Plant2020,13,7:27
2Single-cell RNA-seq highlights intra-tumoral heterogeneity and malignant progression in pancreatic ductal adenocarcinoma显示文摘Pancreatic ductal adenocarcinoma (PDAC) is the most common type of pancreatic cancer featured with high intra-tumoral heterogeneity and poor prognosis. To comprehensively delineate the PDAC intra-tumoral heterogeneity and the underlying mechanism for PDAC progression, we employed single-cell RNA-seq (scRNA-seq) to acquire the transcriptomic atlas of 57,530 individual pancreatic cells from primary PDAC tumors and control pancreases, and identified diverse malignant and stromal cell types, including two ductal subtypes with abnormal and malignant gene expression profiles respectively, in PDAC. We found that the heterogenous malignant subtype was composed of several subpopulations with differential proliferative and migratory potentials. Cell trajectory analysis revealed that components of multiple tumor-related pathways and transcription factors (TFs) were differentially expressed along PDAC progression. Furthermore, we found a subset of ductal cells with unique proliferative features were associated with an inactivation state in tumor-infiltrating T cells, providing novel markers for the prediction of antitumor immune response. Together, our findings provide a valuable resource for deciphering the intra-tumoral heterogeneity in PDAC and uncover a connection between tumor intrinsic transcriptional state and T cell activation, suggesting potential biomarkers for anticancer treatment such as targeted therapy and immunotherapy.Junya Peng Bao-Fa Sun Chuan-Yuan Chen Jia-Yi Zhou Yu-Sheng Chen Hao Chen Lulu Liu Dan Huang Jialin Jiang Guan-Shen Cui Ying Yang Wenze Wang Dan Guo Menghua Dai Junchao Guo Taiping Zhang Quan Liao Yi Liu Yong-Liang Zhao Da-Li Han Yupei Zhao Yun-Gui Yang Wenming Wu 2019Cell Research2019,29,9:24
3Acupuncture promotes functional recovery after cerebral hemorrhage by upregulating neurotrophic factor expression显示文摘Acupuncture is widely used in the treatment of cerebral hemorrhage,and it improves outcomes in experimental animal models and patients.However,the mechanisms underlying the effectiveness of acupuncture treatment for cerebral hemorrhage are still unclear.In this study,a model of intracerebral hemorrhage was produced by injecting 50μL autologous blood into the caudate nucleus in Wistar rats.Acupuncture at Baihui(DU20)and Qubin(GB7)acupoints was performed at a depth of 1.0 inch,12 hours after blood injection,once every 24 hours.The needle was rotated at 200 r/min for 5 minutes,For each 30-minute session,needling at 200 r/min was performed for three sessions,each lasting 5 minutes.For the positive control group,at 6 hours,and 1,2,3 and 7 days after induction of hemorrhage,the rats were intraperitoneally injected with 1 mL aniracetam(0.75 mg/mL),three times a day.The Bederson behavioral test was used to assess palsy in the contralateral limbs.Western blot assay was used to examine the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia.Immunohistochemistry was performed to count the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Acupuncture effectively reduced hemorrhage and brain edema,elevated the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia,and increased the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Together,these findings suggest that acupuncture promotes functional recovery after cerebral hemorrhage by increasing the expression of neurotrophic factors.The study was approved by the Committee for Experimental Animals of Heilongjiang Medical Laboratory Animal Center(approval No.2017061001)on June 10,2017.Dan Li Qiu-Xin Chen Wei Zou Xiao-Wei Sun Xue-Ping Yu Xiao-Hong Dai Wei Teng 2020Neural Regeneration Research2020,15,8:24
4Vegetation cover change and the driving factors over northwest China显示文摘In this paper the spatio-temporal variation of vegetation cover in northwest China during the period of 1982-2006 and its driving factors were analyzed using GIMMS/NDVI data. The annual average NDVI was increased with a rate of 0.0005/a in northwest China and there was an obvious difference between regions. The trend line slopes of NDVI were higher than 0.0005 in the Tianshan Moutains and Altay Mountains of Xinjiang,the Qilian Mountains of Gansu and the eastern part of Qinghai,which indicated the vegetation cover was significantly increased in these areas. The trend line slopes of NDVI were lower than 0.0005 in the southern region of Qinghai,the border regions of Shaanxi and Ningxia,the parts of Gansu and Tarim Basin,Turpan and Tuoli in Xinjiang,which indicated the vegetation cover was declined in these areas. The NDVI of woodland,grassland and cultivated land had an ascending tendency during the study period. The study shows that the vegetation cover change was caused by both natural factors and human activities in northwest China. The natural vegetation change,such as forests was influenced by climate change,while human activities were the main reason to the change of planting vegetation. The changes of vegetation covers for different elevations,slopes and slope aspects were quite different. When the elevation is exceeded to 4,000 m,the NDVI increasing trend was very low;the NDVI at the slope of less than 25° was increased by the ecological construction;the variation of NDVI on sunny slope was stronger than that on shady slope. The temperature rose significantly in recent 25 years in northwest China by an average rate of 0.67oC/10a,and precipitation increased by an average rate of 8.15 mm/10a after 1986. There was positive correlation between vegetation cover and temperature and annual precipitation changes. Rising temperature increased the evaporation and drought of soils,which is not conducive to plant growth,and the irrigation in agricultural areas reduced the correlation between agricultural vegetation NDVI and precipitation. The improvement of agricultural production level and the projects of ecological construction are very important causes for the NDVI increase in northwest China,and the ecological effect of large-scale ecological construction projects has appeared.ShengPei DAI Bo ZHANG HaiJun WANG YaMin WANG LingXia GUO XingMei WANG Dan LI 2011Journal of Arid Land2011,3,1:22
5Upregulation of CD81 in trophoblasts induces an imbalance of Treg/Th17 cells by promoting IL-6 expression in preeclampsia显示文摘The disturbance of maternal immune tolerance to a semiallogeneic fetus is recognized as one of the key pathologies of preeclampsia(PE),in which an imbalance between the inflammation-limiting regulatory T cells(Tregs)and the inflammationmediating Th17 cells plays an essential role.Previously,we reported that the abnormal upregulation of tetraspannin CD81 in trophoblast cells(fetal component)participated in the pathogenesis of PE.However,as one of the potential immune regulatory molecules,whether CD81 induces PE by interfering with the balance of the maternal immune system has not yet been clarified.Thus,we investigated the relationship between the upregulation of CD81 in trophoblast cells and the imbalance of Treg and Th17 cells in mothers.Here,we demonstrated that upregulation of CD81 in trophoblast cells was accompanied by a decrease in Treg cells and an increase in Th17 cells in both the basal plate(placental maternal side)and peripheral blood of patients with PE.In vitro culture of naïve T cells with medium from the CD81-overexpressing trophoblast cell line HTR-8 resulted in enhanced differentiation of T cells into Th17 cells and decreased the formation of Tregs,which was dependent on the paracrine signaling of IL-6 in trophocytes,induced by CD81.In a CD81-induced PE rat model,we found a significant shift of T cell differentiation towards Th17 cells,and administration of IL-6 antibody mitigated the PE phenotype and the imbalance of the Treg/Th17 cells.These results define a vital regulatory cascade involving trophocyte-derived CD81,IL-6,and maternal Treg/Th17 cells in the pathogenesis of PE and suggests new therapeutic approaches based on CD81 and IL-6 downregulation to prevent human PE.Hailin Ding Yimin Dai Yi Lei Zhiyin Wang Dan Liu Ruotian Li Li Shen Ning Gu Mingming Zheng Xiangyu Zhu Guangfeng Zhao Yali Hu 2019Cellular & Molecular Immunology2019,16,3:15
6Highly selective catalytic reduction of NO_x by MnO_x–CeO_2–Al_2O_3 catalysts prepared by self-propagating high-temperature synthesis显示文摘We first present preparation of MnOx–CeO_2–Al_2O_3 catalysts with varying Mn contents through a self-propagating high-temperature synthesis(SHS) method, and studied the application of these catalysts to the selective catalytic reduction of NOxwith NH3(NH_3-SCR).Using the catalyst with 18 wt.% Mn(18 MnCe1Al2), 100% NO conversion was achieved at 200°C and a gas hourly space velocity of 15384 hr-1, and the high-efficiency SCR temperature window, where NO conversion is greater than 90%, was widened to a temperature range of 150–300°C. 18 MnCe1Al2 showed great resistance to SO_2(100 ppm)and H_2O(5%) at 200°C. The catalysts were characterized using X-ray diffraction, X-ray photoelectron spectroscopy, Brunauer–Emmett–Teller(BET) analysis, scanning electron microscopy, Fourier transform infrared spectroscopy, and H_2 temperature programmed reduction. The characterization results showed that the surface atomic concentration of Mn increased with increasing Mn content, which led to synergism between Mn and Ce and improved the activity in the SCR reaction. 18 MnCe1Al2 has an extensive pore structure,with a BET surface area of approximately 135.4 m^2/g, a pore volume of approximately 0.16 cm^3/g, and an average pore diameter of approximately 4.6 nm. The SCR reaction on 18 MnCe1Al2 mainly followed the Eley-Rideal mechanism. The performances of the MnOx–CeO_2–Al_2O_3 catalysts were good, and because of the simplicity of the preparation process,the SHS method is applicable to their industrial-scale manufacture.Chao Wang Feng Yu Mingyuan Zhu Changjin Tang Ke Zhang Dan Zhao Lin Dong Bin Dai 2019Journal of Environmental Sciences2019,31,1:11
7Facile and Scalable Preparation of Fluorescent Carbon Dots for Multifunctional Applications显示文摘Dan Wang Zhiyong Wang Qiuqiang Zhan Yuan Pu Jie-xin wang Neil R. Foster Liming Dai 2017Engineering2017,3,3:9
8Liquid biopsy for non-invasive assessment of liver injury in hepatitis B patients显示文摘BACKGROUND Hepatitis B is a major public health problem in China. Accurate liver injury assessment is essential for clinical evidence-based treatment. Liver biopsy is considered the gold standard method to stage liver disease, but it is not widely used in resource-limited settings. Therefore, non-invasive liquid biopsy tests are needed. AIM To assess liver injury in hepatitis B patients using quantified cell free DNA combined with other serum biomarker as a liquid biopsy-based method. METHODS A cohort of 663 subjects including 313 hepatitis B patients and 350 healthy controls were enrolled. Ultrasound-guided liver biopsies followed by histopathological assessments were performed for the 263 chronic hepatitis B patients to determine the degree of liver injury. Cell-free DNA was quantified using a novel duplex real-time polymerase chain reaction assay. RESULTS Compared with healthy controls, patients with hepatitis B virus (HBV) infection had significantly higher plasma DNA, serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), bilirubin, and HBV DNA levels (P<0.01). Serum ALT, AST, bilirubin, and plasma DNA levels of patients with markedsevere inflammation were significantly higher than those with mild-moderate inflammation (P<0.01). There was a statistically significant correlation between hepatocyte inflammation severity and serum bilirubin (R^2=0.673, P<0.01) or plasma DNA (R^2=0.597, P<0.01) levels. The areas under the curves of serum ALT, bilirubin, plasma DNA, and their combination to distinguish between patients with mild–moderate and marked-severe inflammation were 0.8059, 0.7910, 0.7921, and 0.9564, respectively. CONCLUSION The combination of plasma DNA, serum ALT, and bilirubin could be a candidate liquid biopsy for non-invasive assessment of liver injury in hepatitis B patients.Wen-Ying Xia Li Gao Er-Hei Dai Dan Chen Er-Fu Xie Li Yang Shi-Chang Zhang Bing-Feng Zhang Jian Xu Shi-Yang Pan 2019World Journal of Gastroenterology2019,25,29:9
9KIF2C:a novel link between Wnt/β-catenin and mTORCI signaling in the pathogenesis of hepatocellular carcinoma显示文摘Hepatocellular carcinoma(HCC)is the most common primary liver malignancy and is the fourth-leading cause of cancer-related deaths worldwide.HCC is refractory to many standard cancer treatments and the prognosis is often poor,highlighting a pressing need to identify biomarkers of aggressiveness and potential targets for future treatments.Kinesin family member 2C(KIF2C)is reported to be highly expressed in several human tumors.Nevertheless,the molecular mechanisms underlying the role of KIF2C in tumor development and progression have not been investigated.In this study,we found that KIF2C expression was significantly upregulated in HCC,and that KIF2C up-regulation was associated with a poor prognosis.Utilizing both gain and loss of function assays,we showed that KIF2C promoted HCC cell proliferation,migration,invasion,and metastasis both in vitro and in vivo.Mechanistically,we identified TBC1D7 as a binding partner of KIF2C,and this interaction disrupts the formation of the TSC complex,resulting in the enhancement of mammalian target of rapamycin complexl(mTORCI)signal transduction.Additionally,we found that KIF2C is a direct target of the Wnt/β-catenin pathway,and acts as a key factor in mediating the crosstalk between Wnt/β-catenin and mTORCI signaling.Thus,the results of our study establish a link between Wnt/β-catenin and mTORCI signaling,which highlights the potential of KIF2C as a therapeutic target for the treatment of HCC.Shi Wei Miaomiao Dai Chi Zhang Kai Teng Fengwei Wang Hongbo Li Weipeng Sun Zihao Feng Tiebang Kang Xinyuan Guan Ruihua Xu Muyan Cai Dan Xie 2021Protein & Cell2021,12,10:8
10A deep learning-integrated micro-CT image analysis pipeline for quantifying rice lodging resistance-related traits显示文摘Lodging is a common problemin rice,reducing its yield andmechanical harvesting efficiency.Rice architecture is a key aspect of its domestication and a major factor that limits its high productivity.The ideal rice culm structure,includingmajor_axis_culm,minor axis_culm,andwall thickness_culm,is critical for improving lodging resistance.However,the traditionalmethod ofmeasuring rice culms is destructive,time consuming,and labor intensive.In this study,we used a high-throughput micro-CT-RGB imaging system and deep learning(SegNet)todevelopa high-throughputmicro-CTimageanalysis pipelinethatcanextract 24 riceculmmorphological traits and lodging resistance-related traits.When manual and automatic measurements were compared at themature stage,the mean absolute percentage errors for major_axis_culm,minor_axis_culm,andwall_thickness_culmin 104 indica rice accessionswere 6.03%,5.60%,and 9.85%,respectively,and the R^(2) valueswere 0.799,0.818,and 0.623.We also builtmodels of bending stress using culmtraits at the mature and tillering stages,and the R^(2) values were 0.722 and 0.544,respectively.The modeling results indicated that this method can quantify lodging resistance nondestructively,even at an early growth stage.In addition,we also evaluated the relationships of bending stress toshoot dryweight,culm density,and drought-related traits and found that plants with greater resistance to bending stress had slightly higher biomass,culm density,and culm area but poorer drought resistance.In conclusion,we developed a deep learning-integrated micro-CT image analysis pipeline to accurately quantify the phenotypic traits of rice culms in4.6 min per plant;this pipeline will assist in future high-throughput screening of large rice populations for lodging resistance.Di Wu Dan Wu Hui Feng Lingfeng Duan Guoxing Dai Xiao Liu Kang Wang Peng Yang Guoxing Chen Alan P.Gay John H.Doonan Zhiyou Niu Lizhong Xiong Wanneng Yang 2021Plant Communications2021,2,2:7
11Hydrochlorination of acetylene using expanded multilayered vermiculite(EML-VMT)-supported catalysts显示文摘Catalyst supports have very important effects on catalyst performance.A novel expanded multilayered vermiculite(EML-VMT) is successfully used as the catalyst support for the acetylene hydrochlorination.By mixing carbon on the surface of EML-VMT[i.e.,EML-VMT-C),the HgCl_2/EML-VMT-C achieved a high acetylene conversion of 97.3%,a vinyl chloride selectivity of 100%and a turn over frequency(TOF) value of 8.83 × 10^(-3)s^(-1) at a temperature of 140 C,an acetylene gas hourly space velocity(GHSV) of 108 h^(-1)',and a feed volume ratio V(HC1)/V(C_2H_2) of 1.15.Moreover,the HgCl_2/EML-VMT-C shows good stability.The EML-VMT also shows potential in the preparation of other EML-VMT-supported catalysts.Xin-Huang Feng Yu Ming-Yuan Zhu Fei-Hong Ouyang Bin Dai Jian-Ming Dan 2015Chinese Chemical Letters2015,26,9:6
12Alterations of brain local functional connectivity in amnestic mild cognitive impairment显示文摘Background:Resting-state functional magnetic resonance imaging studies using a regional homogeneity(ReHo)method have reported that amnestic mild cognitive impairment(aMCI)was associated with abnormalities in local functional connectivity.However,their results were not conclusive.Methods:Seed-based d Mapping was used to conduct a coordinate-based meta-analysis to identify consistent ReHo alterations in aMCI.Results:We identified 10 studies with 11 datasets suitable for inclusion,including 378 patients with aMCI and 435 healthy controls.This meta-analysis identified significant ReHo alterations in patients with aMCI relative to healthy controls,mainly within the default mode network(DMN)(bilateral posterior cingulate cortex[PCC],right angular gyrus,bilateral middle temporal gyri,and left parahippocampal gyrus/hippocampus),executive control network(right superior parietal lobule and dorsolateral prefrontal cortex),visual network(right lingual gyrus and left middle occipital gyrus),and sensorimotor network(right paracentral lobule/supplementary motor area,right postcentral gyrus and left posterior insula).Significant heterogeneity of ReHo alterations in the bilateral PCC,left parahippocampal gyrus/hippocampus,and right superior parietal lobule/angular gyrus was observed.Exploratory meta-regression analyses indicated that general cognitive function,gender distribution,age,and education level partially contributed to this heterogeneity.Conclusions:This study provides provisional evidence that aMCI is associated with abnormal ReHo within the DMN,executive control network,visual network,and sensorimotor network.These local functional connectivity alterations suggest coexistence of functional deficits and compensation in these networks.These findings contribute to the modeling of brain functional connectomes and to a better understanding of the neural substrates of aMCI.Confounding factors merit much attention and warrant future investigations.Dan Zheng Wei Xia Zhong Quan Yi Pan Wen Zhao Jian Guo Zhong Hai Cun Shi Hua Liang Li Zhen Yu Dai Ping Lei Pan 2018Translational Neurodegeneration2018,7,1:5
13Contemporary review of minimally invasive pancreaticoduodenectomy显示文摘AIM To assess the current literature describing various minimally invasive techniques for and to review short-term outcomes after minimally invasive pancreaticoduodenectomy(PD). METHODS PD remains the only potentially curative treatment for periampullary malignancies, including, most commonly, pancreatic adenocarcinoma. Minimally invasive approaches to this complex operation have begun to be increasingly reported in the literature and are purported by some to reduce the historically high morbidity of PD associated with the open technique. In this systematic review, we have searched the literature for high-quality publications describing minimally invasive techniques for PD-including laparoscopic, robotic, and laparoscopicassisted robotic approaches(hybrid approach). We have identified publications with the largest operative experiences from well-known centers of excellence for this complex procedure. We report primarily short term operative and perioperative results and some short term oncologic endpoints. RESULTS Minimal y invasive techniques include laparoscopic, robotic and hybrid approaches and each of these techniques has strong advocates. Consistently, across all minimally invasive modalities, these techniques are associated less intraoperative blood loss than traditional open PD(OPD), but in exchange for longer operating times. These techniques are relatively equivalent in terms of perioperative morbidity and short term oncologic outcomes. Importantly, pancreatic fistula rate appears to be comparable in most minimally invasive series compared to open technique. Impact of minimally invasive technique on length of stay is mixed compared to some traditional open series. A few series have suggestedthat initiation of and time to adjuvant therapy may be improved with minimally invasive techniques, however this assertion remains controversial. In terms of shortterms costs, minimally invasive PD is significantly higher than that of OPD. CONCLUSION Minimally invasive approaches to PD show great promise as a strategy to improve short-term outcomes in patients undergoing PD, but the best results remain isolated to high-volume centers of excellence.Rui Dai Ryan S Turley Dan G Blazer 2016World Journal of Gastrointestinal Surgery2016,8,12:5
14Soil carbon budget in different-aged Chinese fir plantations in south China显示文摘Understanding the age effect on soil carbon balance in forest ecosystems is important for other material cycles and forest management. In this research we investigated soil organic carbon density, litter production, litter decomposition rate, soil respiration, and soil microbial properties in a chronosequence of four Chinese fir plantations of 7, 16, 23 and 29 years at Dagangshan mountain range, Jiangxi Province, south China. There was a significant increasing trend in litter production with increasing plantation age. Litter decomposition rate and soil respiration, however, declined from the 7-year to the 16-year plantation, and then increased after 16 years. This was largely dependent on soil microorganisms. Soil carbon output was higher than carbon input before 16 years, and total soil carbon stock declined from 35.98 t·ha-1 in the 7-year plantation to 30.12 t·ha-1 in the 16-year plantation. Greater litter production could not explain the greater soil carbon stock, suggesting that forest growth impacted this microbial process that controlled rates of soil carbon balance together with litter and soil respiration. The results highlight the importance of the development stage in assessing soil carbon budget and its significance to future management of Chinese fir plantations.Shebao Yu Dan Wang Wei Dai Ping Li 2014Journal of Forestry Research2014,25,3:5
15Research advances of vasoactive intestinal peptide in the pathogenesis of ulcerative colitis by regulating interleukin-10 expression in regulatory B cells显示文摘Ulcerative colitis(UC)is a chronic relapsed intestinal disease with an increasing incidence around the world.The pathophysiology of UC remains unclear.However,the role of the interaction between the enteric nervous system and the immune system in the pathogenesis of UC has been the focus of attention and has become a research hotspot.Vasoactive intestinal peptide(VIP)is a kind of endogenous neuropeptide with regulatory activity on intestinal immunity.It has been shown to regulate immune disorders in animal and human experiments and has become an effective anti-inflammatory and immune modulator that affects the innate immune system and adaptive immune system.Regulatory B cells(Bregs)are a new group of B cells that negatively regulate the immunity and have received extensive attention in immune circles.Bregs can regulate immune tolerance by producing interleukin(IL)-10,IL-35,and transforming growth factor-β,suppressing autoimmune diseases or excessive inflammatory responses.The secretion of IL-10 by Bregs induces the development of T helper(Th)0 and Th2 cells.It also induces Th2 cytokines and inhibits Th1 cytokines,thereby inhibiting Th1 cells and the Th1/Th2 balance.With further clarity on the mechanism of the regulation of IL-10 expression by VIP in Bregs in colitis patients,we believe that Bregs can provide a novel strategy for the clinical treatment of UC.Thus,we aim to review the current literature on this evolving topic.Xiong Sun Yao Huang Ya-Li Zhang Dan Qiao Yan-Cheng Dai 2020World Journal of Gastroenterology2020,26,48:4
16Effects of kanglaite capsules combined with transcatheter arterial chemoembolization (TACE) on patients with mid or late-stage primary hepatocellular carcinoma (HCC)显示文摘观察囊与 transcatheter 相结合的 kanglaite (KLT ) 的临床的效果的目的动脉的 chemoembolization (不作声) 在与中间或迟了阶段的主要肝细胞癌(HCC ) 对待病人。65 个盒子随机被划分成 2 个组,的方法在联合组的 32 个病人接受了 KLT 囊 + 的治疗不作声,在控制组的 33 个病人被对待与独自不作声。客观反应率(RR ) ,浆液高山哈 fetoprotein (法新社) ,外部血 T 淋巴细胞亚群(T-LS ) ,生命(QOL ) 的质量,前进(TTP ) 的时间和不利反应在 2 之间被遵守并且比较组。客观反应评估的结果和浆液高山哈 fetoprotein 层次没有在二个组之间的有效差量(P > 0.05 ) 。联合组是优异的在生命(QOL ) 的质量控制组,前进(TTP ) 的时间,外部血 T 淋巴细胞亚群(CD3+ , CD4+ , CD4+∖CD8 比率) 并且肝不利反应,与有效差量(P < 0.05 ) 。结论 KLT 囊与结合了不作声是到对待的一个有效方法失去了外科的治疗的机会的主要肝细胞癌(HCC ) 病人。Daojun Li Xinhua Xu Dan Bao Feng Xue Delan Dai 2009The Chinese-German Journal of Clinical Oncology2009,8,2:4
17Reconstruction of segmental bone defects in the rabbit ulna using periosteum encapsulated mesenchymal stem cells-loaded poly(lactic-co-glycolic acid) scaffolds显示文摘ZHANG Xin QI Yi-ying ZHAO Teng-fei LI Dan DAI Xue-song NIU Lie HE Rong-xin 2012Chinese Medical Journal2012,,22:4
18Microbial transformation of lovastatin by Beauveria bassiana显示文摘Microbial transformation of lovastatin(1)by resting cells of a filamentous fungus,Beauveria bassiana AS 3.4270,yielded five metabolites(2-6),which were unambiguously characterized by various spectroscopic data analyses.The occurred reactions included hydroxyla-tion,lactone hydrolysis and methylation.The inhibitory effects of all metabolites on the 3-hydroxy-3-methylglutaryl coenzyme A(HMG-CoA)reductase were evaluated.Of the five compounds,4 ex hibited comparable inhibitory effect to lovastatin on the HMG-CoA reductase with ICso value of 2.2μM,and inhibitory rate of 81.4%.Lirui Qiao Dan Xie Quan Liu Jianhua Zou Zhufang Shen Jungui Dai 2012Acta Pharmaceutica Sinica B2012,2,3:4
19Overwhelming low ammonia escape and low temperature denitration efficiency via MnOx-decorated two-dimensional MgAl layered double oxides显示文摘Low temperature catalysts are attracting increasing attention in the selective catalytic reduction(SCR)of NO with NH3.Mn Ox-decorated Mg Al layered double oxide(Mn/Mg Al-LDO)was synthesized via a facile fast pour assisted co-precipitation(FP-CP)process.Compared to the Mn/Mg Al-LDO obtained via slow drop assisted coprecipitation(SD-CP)method,the Mn/Mg Al-LDO(FP-CP)has excellent activity.The Mn/Mg Al-LDO(FP-CP)catalyst was shown to possess a high NO conversion rate of 76%-100%from 25 to 150℃,which is much better than the control Mn/Mg Al-LDO(SD-CP)(29.4%-75.8%).In addition,the Mn/Mg Al-LDO(FP-CP)offered an enhanced NO conversion rate of 97%and a N2selectivity of 97.3%at 100℃;the NO conversion rate was 100%and the N2selectivity was 90%at 150℃with a GHSV of 60,000 h^-1.The Mn/Mg Al-LDO(FP-CP)catalyst exhibited a smaller fragment nano-sheet structure(sheet thickness of 7.23 nm).An apparent lattice disorder was observed in the HRTEM image confirming the presence of many defects.The H2-TPR curves show that the Mn/Mg Al-LDO(FP-CP)catalyst has abundant reducing substances.Furthermore,the enhanced surface acidity makes the NH3concentration of the Mn/Mg Al-LDO(FP-CP)catalyst lower than 100 ml·m^-3after the reaction from 25 to 400℃.This can effectively reduce the ammonia escape rate in the SCR reaction.Thus,the Mn/Mg Al-LDO(FP-CP)catalyst has potential applications in stationary industrial installations for environmentally friendly ultra-low temperature SCR.Junqi Tian Yanqin Li Xia Zhou Yongbin Yao DenghaoWang Jianming Dan Bin Dai Qiang Wang Feng Yu 2020Chinese Journal of Chemical Engineering2020,28,7:4
20Enhanced selective catalytic reduction of NO with NH3 via porous micro-spherical aggregates of Mn–Ce–Fe–Ti mixed oxide nanoparticles显示文摘We rationally designed a high performance denitration(De-NOx) catalyst based on a micrometer-sized spherical Mn–Ce–Fe–Ti(CP-SD)catalyst for selective catalytic reduction(SCR). This was prepared by a co-precipitation and spray drying(CP-SD) method. The catalyst was systematically characterized, and its morphological structure and surface properties were identified. Compare with conventional Mn–Ce–Fe–Ti(CP) catalysts, the Mn–Ce–Fe–Ti(CP-SD) catalyst had superior surface-adsorbed oxygen leading to enhanced 'fast NH3-SCR' reaction. The asobtained Mn–Ce–Fe–Ti(CP-SD) catalyst offered excellent NO conversion and N2 selectivity of 100.0% and 84.8% at 250℃, respectively, with a gas hourly space velocity(GHSV) of 40,000 h-1. The porous micro-spherical structure provides a larger surface area and more active sites to adsorb and activate the reaction gases. In addition, the uniform distribution and strong interaction of manganese, iron, cerium, and titanium oxide species improved H2O and SO2 resistance. The results showed that the Mn–Ce–Fe–Ti(CP-SD) catalyst could be used prospectively as a denitration(De-NOx) catalyst.Junqi Tian Ke Zhang Wei Wang Fu Wang Jianming Dan Shengchao Yang Jinli Zhang Bin Dai Feng Yu 2019Green Energy & Environment2019,4,3:4
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