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| 1 | Molecular mechanism about lymphogenous metastasis of hepatocarcinoma cells in mice显示文摘AIM To investigate the correlation between lymphogenous metastasis and matrix metalloproteinases (MMPs) activity and the expression of Fas Iigand of tumor cells in lymph nodes.METHODES Fifty-six inbred 615-mice were equally divided into 2 groups and inoculated with Hca-F and Hca-P cells. Their lymph node metastatic rates were examined.Growth fraction of lymphocytes in host lymph nodes was detected by flow cytometry. The Hca-F and Hca-P cells were cultured with extract of lymph node, liver or spleen.The quantity of MMPs in these supernatants was examined by zymographic analysis. The expression of Fas ligand,PCNA, Bcl-2 protein of Hca-F and Hca-P cells in the mice were examined by immunohistochemistry. The apoptosis signals of macrophages in lymph nodes were observed with in situ DNA fragmentation.RESULTS On the 28th day post-inoculation, the lymph node metastatic rate of Hca-F was 80% (16/20), whereas that of Hca-P was 25% (5/20). The growth fraction of lymphocytes was as follows: in the Hca-F cells, the proliferating peak of lymphocytes appeared on the 14th day post-inoculation and then decreased rapidly, while in HcaP cells, the peak appeared on the 7th day post-inoculation and then kept at a high level. With the extract of lymph node, the quantity of the MMP-9 activity increased (P<0.01) and active MMP-9 and MMP-2 were produced by both Hca-F and Hca-P tumor cells, which did not produce MMPs without the extract of lymph node or with the extracts of the liver and spleen. The expression of Fas Ligand of Hca-F cells was stronger than that of Hca-P cells (P<0.01). The expressions of PCNA and Bcl-2 protein of Hca-F cells in the tumors of inoculated area were the same as that of Hca-P cells. In situ DNA fragmentation showed that the positive signals of macrophages were around HcaF cells.CONCLUSION Secretion of MMPs which was associated with metastatic ability of Hca-F and Hca-P tumor cells depends on the environment of lymph nodes. The increased expression of Fas ligand protein of Hca-F tumor cells with high lymphogenous metastatic potential in lymph nodes may help tumor cells escape from being killed by host lymphocytes. | Li Hou Ying Li Yong-Hua Jia Bo Wang Yi Xin Mao-Ying Ling Shen Lü Department of Pathology,Dalian Medical University,Dalian 116027,Liaoning Province,ChinaDepartment of Biochemistry,Dalian Medical University,Dalian 116027,Liaoning Province,China | 2001 | World Journal of Gastroenterology2001,7,4: | 47 |
| 2 | Comparison of parathyroid hormone (1-34) and elcatonin in postmenopausal women with osteoporosis: an 18-month randomized, multicenter controlled trial in China显示文摘 | LI Ying XUAN Miao WANG Bo YANG Jun ZHANG Hong ZHANG Xiu-zhen GUO Xiao-hui Lü Xiao-feng XUE Qing-yun YANG Gang-yi JI Qiu-he LIU Zhi-min LI Cheng-jiang WU Tian-feng SHENG Zheng-yan LI Peng-qiu TONG Jiu-cui | 2013 | Chinese Medical Journal2013,,3: | 24 |
| 3 | Autoantibody to MOG suggests two distinct clinical subtypes of NMOSD显示文摘We characterized a unique group of patients with neuromyelitis optica spectrum disorder(NMOSD) who carried autoantibodies of aquaporin-4(AQP4) and myelin-oligodendrocyte glycoprotein(MOG). Among the 125 NMOSD patients, 10(8.0%) were AQP4- and MOG-ab double positive, and 14(11.2%) were MOG-ab single positive. The double-positive patients had a multiphase disease course with a high annual relapse rate(P=0.0431), and severe residual disability(P<0.0001). Of the double-positive patients, 70% had MS-like brain lesions, more severe edematous, multifocal regions on spinal magnetic resonance imaging(MRI), pronounced decreases of retinal nerve fiber layer thickness and atrophy of optic nerves. In contrast, patients with only MOG-ab had a higher ratio of monophasic disease course and mild residual disability. Spinal cord MRI illustrated multifocal cord lesions with mild edema, and brain MRIs showed more lesions around lateral ventricles. NMOSD patients carrying both autoantibodies to AQP4 and MOG existed and exhibited combined features of prototypic NMO and relapsing-remitting form of MS, whereas NMOSD with antibodies to MOG only exhibited an 'intermediate' phenotype between NMOSD and MS. Our study suggests that antibodies against MOG might be pathogenic in NMOSD patients and that determination of anti-MOG antibodies maybe instructive for management of NMOSD patients. | Yaping Yan Yujing Li Ying Fu Li Yang Lei Su Kaibin Shi Minshu Li Qiang Liu Aimee Borazanci Yaou Liu Yong He Jeffrey L Bennett Timothy L Vollmer Fu-Dong Shi | 2016 | Science China(Life Sciences)2016,59,12: | 20 |
| 4 | ALDH2 protects against stroke by clearing 4-HNE显示文摘(ALDH2 ) 醛脱氢酶 2 是使象 4-hydroxy-2-nonenal (4-HNE ) 那样的乙醇和有毒的醛产生代射变化的 mitochondrial 酶。用不偏的 proteomic 搜索,我们作为与自发地高血压的老鼠(SHR ) 相比在击容易的自发地高血压的老鼠(SHR-SP ) 识别了 ALDH2 缺乏。我们作为 overexpression 在 neuronal 损害结束了 ALDH2 缺乏的原因的角色或 ALDH2 的激活由清除 4-HNE 在授与 neuroprotection 在 vitro 研究。进一步, ALDH2 击倒的老鼠揭示了 PKCε 的 neuroprotective 效果的缺席;。被知道对击施加保护的中等乙醇管理被显示提高 4-HNE 的 detoxification,并且免于 ischemic 通过 PKCε 的服的损害; -ALDH2 小径。在 SHR-SP,浆液 4-HNE 水平固执地与 lifespan 相反地被提高并且相关。在在人的击的 4-HNE 的角色被它的血浆层次的坚持的举起也在击以后建议至少 6 个月。最后,我们观察到发展了的跟随 8 年的 1 242 个题目中的 21 个比没得中风的那些摸有的更高起始的血浆 4-HNE 层次。这些调查结果建议 ALDH2 小径的激活可以在击容易的题目的鉴定用作一个有用索引,并且 ALDH2 小径可以是在击的治疗学的干预的一个潜在的目标。 | Jin-Min Guo Ai-Jun Liu Pu Zang Wen-Zhe Dong Li Ying Wei W ang Pu Xu Xu-Rui Song Jun Cai She-Qing Zhang Jun-Li Duan Jawahar L Mehta Ding-Feng Su | 2013 | Cell Research2013,23,7: | 19 |
| 5 | Hydrochemical characteristics and recharge sources of Lake Nuoertu in the Badain Jaran Desert显示文摘We present a case study of physical and chemical indicators and isotope characteristics of Lake Nuoertu,one of the largest and deepest lakes of the Badain Jaran Desert.We analyze the concentrations of eight ions,total dissolved solids,and stable isotope composition of the lake and groundwater,as well as radioactive isotope tritium concentration in groundwater.The results show that annual and seasonal variations of the physical and chemical characteristics of Lake Nuoertu water are significantly greater than those of groundwater.The lake is uniformly mixed in the horizontal and vertical directions,and the hydrochemical types of the lake at different depths are consistent for Na–Cl–CO3–(SO4).Stable isotope composition of the lake and groundwater at Nuoertu is distributed along the local evaporation line(EL)slope,which is less than the slope of the global meteoric water line.The comparatively small slope shows the characteristic strong evaporation in the study area.Lake water isotopes are mostly in the upper right corner of the EL,whereas groundwater is mostly in the lower left corner.The main recharge source of Nuoertu lake water is groundwater,in combination with lake water and groundwater level change.The age of tufa springs around Nuoertu is about75–80 a,which shows that the initial recharge source of the lake is a mix between modern and 1952 or older;however,further research is required. | Yue Wu Naiang Wang Liqiang Zhao Zhenyu Zhang Li Chen Ying Lu Xiaonan L Jinlong Chang | 2014 | Chinese Science Bulletin2014,59,9: | 12 |
| 6 | Extraction of vanadium from vanadium slag by high pressure oxidative acid leaching显示文摘To extract vanadium in an environment friendly manner,this study focuses on the process of leaching vanadium from vanadium slag by high pressure oxidative acid leaching.Characterizations of the raw slag,mineralogy transformation,and the form of leach residues were made by X-ray diffraction,scanning electron microscopy,and energy dispersive X-ray spectroscopy.The result shows that the vanadium slag is composed of major phases of fayalite,titanomagnetite,and spinel.During the high pressure oxidative acid leaching process,the fayalite and spinel phases are gradually decomposed by sulfuric acid,causing the release of vanadium and iron in the solution.Meanwhile,unreacted silicon and titanium are enriched in the leach residues.With the initial concentration of sulfuric acid at 250 g·L^(-1),a leaching temperature of 140℃,a leaching time of 50 min,a liquid-solid ratio of 10:1 mL·g^(-1),and oxygen pressure at 0.2 MPa,the leaching rate of vanadium reaches 97.69%. | Guo-quan Zhang Ting-an Zhang Guo-zhi Lü Ying Zhang Yan Liu Zhuo-lin Liu | 2015 | International Journal of Minerals,Metallurgy and Materials2015,22,1: | 9 |
| 7 | 灌河口近岸海域春季海洋环境现状调查显示文摘【目的】调查灌河口邻近海域生态环境状况。【方法】2016年5月对该海域进行水质、沉积物和生物生态现状调查。【结果与结论】水质主要超标因子为无机氮、磷酸盐;沉积物质量监测项目全部符合一类沉积物质量标准。浮游植物生物多样性指数丰富(3.11),浮游动物、游泳动物的生物多样性指数较丰富(大于2),底栖生物较贫乏(0.97)。底栖生物密度与沉积物硫化物显著正相关。浮游植物密度与叶素绿a显著正相关。小型网浮游动物密度与水温、化学需氧量显著负相关,其种类与营养盐、化学需氧量显著负相关,二者均与盐度显著正相关。 | 周超凡 矫新明 毛成责 张鹏 Lü Ying | 2018 | 广东海洋大学学报2018,38,5: | 8 |
| 8 | Hematopoietic stem cell-derived adipocytes and fibroblasts in the tumor microenvironment显示文摘The tumor microenvironment(TME) is complex and constantly evolving. This is due, in part, to the crosstalk between tumor cells and the multiple cell types that comprise the TME, which results in a heterogeneous population of tumor cells and TME cells. This review will focus on two stromal cell types, the cancerassociated adipocyte(CAA) and the cancer-associated fibroblast(CAF). In the clinic, the presence of CAAs and CAFs in the TME translates to poor prognosis in multiple tumor types. CAAs and CAFs have an activated phenotype and produce growth factors, inflammatory factors, cytokines, chemokines, extracellular matrix components, and proteases in an accelerated and aberrant fashion. Through this activated state, CAAs and CAFs remodel the TME, thereby driving all aspects of tumor progression, including tumor growth and survival, chemoresistance, tumor vascularization, tumor invasion, and tumor cell metastasis. Similarities in the tumorpromoting functions of CAAs and CAFs suggest that a multipronged therapeutic approach may be necessary to achieve maximal impact on disease. While CAAs and CAFs are thought to arise from tissues adjacent to the tumor, multiple alternative origins for CAAs and CAFs have recently been identified. Recent studies from our lab and others suggest that the hematopoietic stem cell, through the myeloid lineage, may serve as a progenitor for CAAs and CAFs. We hypothesize that the multiple origins of CAAs and CAFs may contribute to the heterogeneity seen in the TME. Thus, a better understanding of the origin of CAAs and CAFs, how this origin impacts their functions in the TME, and thetemporal participation of uniquely originating TME cells may lead to novel or improved anti-tumor therapeutics. | Ying Xiong Lindsay T Mc Donald Dayvia L Russell Ryan R Kelly Katie R Wilson Meenal Mehrotra Adam C Soloff Amanda C LaRue | 2015 | World Journal of Stem Cells2015,7,2: | 6 |
| 9 | Design and experiment of an air-suction potato seed metering device显示文摘An air-suction potato seed metering device was designed to improve the performance of the large-size seed crops planting equipment and provide a solution for problems on the mechanical potato seeder,such as high multiple-seeding index,high missing-seeding index,low qualified index,and limited versatility.The main structure and operation parameters in terms of rotating speed of the device,seeds height and pickup vacuum pressure were determined by theoretical analysis.Two orthogonal tests,conventional tuber(the triaxial average diameter is about 38-57 mm)test and mini-tuber(the triaxial average diameter is about 12-36 mm)test,were conducted to analyze the influences of these factors on the quality of seeding.The multiple-seeding index,missing-seeding index and qualified index were chosen for evaluating the working performance.The results of conventional tuber test showed that,the multiple-seeding index was 1.1%,the missing-seeding index was 0.8%and the qualified index was 98.1%under conditions of the 30 r/min rotating speed,25 cm seeds height and 10 kPa pickup vacuum pressure.The results of mini-tuber test showed that the multiple-seeding index was 0.5%,the missing-seeding index was 0.6%and the qualified index was 98.9%under conditions of 35 r/min rotating speed,17 cm seeds height and 3.5 kPa pickup vacuum.The working performances of the device can meet the requirements of precision seeding. | LüJinqing Yang Ying Li Zihui Shang Qinqin Li Jicheng Liu Zhongyuan | 2016 | International Journal of Agricultural and Biological Engineering2016,9,5: | 5 |
| 10 | Iron increases HMOX1 and decreases hepatitis C viral expression in HCV-expressing cells显示文摘AIM:To investigate effects of iron on oxidative stress, heme oxygenase-1(HMOX1)and hepatitis C viral(HCV) expression in human hepatoma cells stably expressing HCV proteins. METHODS:Effects of iron on oxidative stress,HMOX1, and HCV expression were assessed in CON1 cells. Measurements included mRNA by quantitative reverse transcription-polymerase chain reaction,and protein levels by Western blots. RESULTS:Iron,in the form of ferric nitrilotriacetate,increased oxidative stress and up-regulated HMOX1 gene expression.Iron did not affect mRNA or protein levels of Bach1,a repressor of HMOX1.Silencing the up-regulation of HMOX1 nuclear factor-erythroid 2-related factor 2(Nrf2)by Nrf2-siRNA decreased FeNTA-mediated up-regulation of HMOX1 mRNA levels.These iron effects were completely blocked by deferoxamine(DFO).Iron also significantly decreased levels of HCV core mRNA and protein by 80%-90%, nonstructural 5A mRNA by 90%and protein by about 50%in the Con1 full length HCV replicon cells, whereas DFO increased them. CONCLUSION:Excess iron up-regulates HMOX1 and down-regulates HCV gene expression in hepatoma cells.This probably mitigates liver injury caused by combined iron overload and HCV infection. | Wei-Hong Hou Lisa Rossi Ying Shan Jian-Yu Zheng Richard W Lambrecht Herbert L Bonkovsky | 2009 | World Journal of Gastroenterology2009,15,36: | 5 |
| 11 | Spatial and Seasonal Variations of Nutrients in Sediment Profiles and Their Sediment-Water Fluxes in the Pearl River Estuary,Southern China显示文摘Three cruises were launched in the Pearl River Estuary(PRE)in 2005 to investigate the biogeochemical cycling of nutrients associated with early diagenesis related to degradation of organic matter.Seasonal and spatial variations of pore water nutrient concentrations and profile patterns in sediments were studied.Nutrient fluxes at the sediment-water interface(SWI)were measured by incubation experiments,and we here discussed the accumulation and transformation processes of nutrients at the SWI.The nutrients generally decreased from the Pearl River outlets downstream,indicating anthropogenic influences on the nutrient inputs in the estuary.NO3-N concentration was the highest of the three forms of DIN(dissolved inorganic nitrogen,the sum of NH4-N,NO3-N and NO2-N)in the overlying water,and NH4-N was the main component of DIN in pore water.The gradual increase of NH4-N and the rapid decrease of NO3-N with sediment depth provided the evidence for anaerobic conditions below the SWI.Negative fluxes of NO3-N and positive fluxes of NH4-N were commonly observed,suggesting the denitrification of NO3-N at the SWI.The DIN flux direction suggested that the sediment was the sink of DIN in spring,however,the sediment was generally the source of DIN in summer and winter.PO4-P distribution patterns were distinct while SiO4-Si inconspicuously varied in sediment profiles in different seasons.The flux results indicated that PO4-P mainly diffused from the water column to the sediment while SiO4-Si mainly diffused from the sediment to the water column.Generally,the incubated fluxes were the coupling of diffusion,bioturbation and biochemical reactions,and were relatively accurate in this study. | Ling Zhang Lu Wang Kedong Yin Ying Lü Yongqiang Yang Xiaoping Huang | 2014 | Journal of Earth Science2014,25,1: | 5 |
| 12 | High responsivity 4H-SiC based metal-semiconductor-metal ultraviolet photodetectors显示文摘4H-SiC based metal-semiconductor-metal (MSM) photodetectors with diverse spacing were designed, fabricated, and characterized, in which nickel Schottky contacts were needed. Current-voltage and spectral responsivity measurements were carried out at room temperature. The fabricated 4 μm-spacing device showed a very low dark current (0.25 pA at 5 V bias voltage), a typical responsivity of 0.103 A/W at 20 V, and a peak re-sponse wavelength at 290 nm. The fabricated devices held a high DUV to visible re-jection ratio of >103. | YANG WeiFeng ZHANG Feng LIU ZhuGuang LüYing WU ZhengYun | 2008 | Science China(Physics,Mechanics & Astronomy)2008,51,11: | 4 |
| 13 | Post-marketing safety surveillance and reevaluation of Motherwort injection:A clinical study of 10094 cases显示文摘OBJECTIVE:To investigate the safety profiles of Motherwort injection(MI).METHODS:A multi-center,prospective and drugderived hospital intensive monitoring method was conducted to assess the safety of MI in real world applications.This study was based on a very large population after the injection was approved and marketed in China.All patients using the injection in participating hospitals were monitored to determine the incidence,pattern,severity and outcome of associated adverse events.RESULTS:The post-marketing surveillance was performed in 10 094 female patients from April to December,2015.The incidence of adverse drug reactions(ADRs) was 0.79‰(8/10 094).Among the 8 patients,the reported adverse events mainly included systemic abnormalities,such as fever,chills and eyelid edema;skin and appendages disorders,such as pruritus and rash;gastrointestinal disorders,such as nausea,abdominal distension and pain;heart rate and rhythm disorders,such as palpitation and increased heart rate.All of these ADRs were mild in severity.CONCLUSION:In this study the ADRs incidence rate of MI is very low,which supports that it is generally safe for use in obstetric and gynecological diseases.However,the total number of 8 ADRs recorded over a relatively short time span seems limited,and the low number of reports could not represent an absolute guarantee of safety. | Cao Shan Zhang Wenhao Zhao Ziwei Heng Mingli Bu Huaien Wang Hongwu Liu Xinghui Wang Zhong Cai Yan Ma Yuyan Cui Shihong Deng Jihong Ding Guifeng Ding Yajuan Dong Linhong Duan Zhentao Fan Ling Fan Yang Fu Fen He Jing Ji Shuying Jin Lin Li Hong Li Hongying Liao Tao Lu Wei Luo Xiucui Lü Zhihui Ma Fengchun Ma Dafeng Shi Tianyun Sun Juying Sun Xiaotong Teng Hong Wang Jinhua Wang Ruihua Wang Ying Wang Zhengling Xi Jie Xu Minjuan Xu Zhihong Yan Qian Yang Cuirong Yang Yimei Yin Jie Yu Jinhua Yuan Wenjun Zhang Guanli Zhang Meihua Zhao Renfeng Zhong Yonghong Zhou Jian | 2018 | Journal of Traditional Chinese Medicine2018,38,4: | 4 |
| 14 | Spacelike Mobius Hypersurfaces in Four Dimensional Lorentzian Space Form显示文摘In this paper, we first set up an alternative fundamental theory of M?bius geometry for any umbilic-free spacelike hypersurfaces in four dimensional Lorentzian space form, and prove the hypersurfaces can be determined completely by a system consisting of a function W and a tangent frame {E_i}. Then we give a complete classification for spacelike M?bius homogeneous hypersurfaces in four dimensional Lorentzian space form. They are either M?bius equivalent to spacelike Dupin hypersurfaces or to some cylinders constructed from logarithmic curves and hyperbolic logarithmic spirals. Some of them have parallel para-Blaschke tensors with non-vanishing M?bius form. | Yan Bin LIN Ying Lü Chang Ping WANG | 2019 | Acta Mathematica Sinica,English Series2019,35,4: | 4 |
| 15 | Effect of Tongxieyaofang decoction on colonic mucosal protein expression profiles in rats with visceral hypersensitivity显示文摘OBJECTIVE: To explore the underlying mechanism of action of Tongxieyaofang decoction in rats with visceral hypersensitivity using proteomics technology.METHODS: Twenty-four female Sprague-Dawley rats were randomly divided into three groups: control group, irritable bowel syndrome(IBS) group and Tongxieyaofang treatment group. An IBS model, characterized as visceral hypersensitivity, was established using the odour of mothballs as conditional stimulation and colorectal distension combined with classic physical restraint as non-conditional stimulation. Rats were intragastrically treated with Tongxieyaofang(2 or 4 m L · kg^(-1)· d^(-1))for 4 weeks. On the 45 th day, the rats were dissected and the colonic mucosal proteins were extracted. Differential protein spots were screened by fluorescent two-dimensional differential gel electrophoresis(2 D-DIGE), and identified by matrix-assisted laser desorption/ionisation time of flight mass spectrometry(MALDI-TOF-MS). Western blotting experiments were performed to verify the changes observed in 2 D-DIGE and MALDI-TOF-MS.RESULTS: It was found that the visceral sensitivity of rats in the Tongxieyaofang treatment group(4 m L/kg) was lower than that in the IBS group(P <0.01). Sixty-one protein spots were differentially expressed between the IBS group and the Tongxieyaofang treatment group. Of these, 23 spots were upregulated in the Tongxieyaofang treatment group, while 38 spots were downregulated. Three specific proteins were successfully identified from the five protein spots with the most obvious changes. The two upregulated proteins were transgelin(TAGLN) and acetaldehyde dehydrogenase 2(Aldh2) and the downregulated protein was cytokeratin 8(CK8).CONCLUSION: Tongxieyaofang can dose-dependently ameliorate visceral hypersensitivity in rats and the mechanism of action may involve the upregulation of TAGLN and Aldh2 and the downregulation of CK8. | Lin Yongjun Ding Ying Lü Bin Liu Nan | 2020 | Journal of Traditional Chinese Medicine2020,40,2: | 4 |
| 16 | Observations and analysis of environment and acoustic field changed by the passage of typhoon Damrey in the Yellow Sea in 2012显示文摘In order to investigate the environment and acoustic filed change induced by typhoon in shallow sea, we conducted two experiments just before and after the passage of typhoon Damrey, which is the strongest to affect the area north of the Yangtze River since 1949, in the Yellow sea in 2012. The data show that the temperature of the whole water column increases dramatically except the sea surface layer after the passage of Damrey while the salinity decreases obviously. The thermocline deepens and weakens, which leads to a change of internal wave activity. The transmission losses(TL) of the two experiments show that the environment change induced by typhoon can increase the TL as large as 8 d B at a distance of 9.2 km and depth of 15 m. The scintillation index(SI) of the sound intensity is simulated to estimate the change of the effect of internal wave activity on acoustic field showing that the SI decreases to a half after the typhoon's passage. The normal mode structures of the two experiments are also significantly different due to the thermocline changes. In addition, the signal arrives earlier after the typhoon's passage due to the water temperature increase. | YANG GuangBing Lü LianGang YUAN YeLi JIANG Ying LIU ZongWei YANG ChunMei LIU HongNing CHEN Zhao | 2015 | Science China Earth Sciences2015,58,12: | 3 |
| 17 | Flexible Triboelectric Nanogenerator from Micro-nano Structured Polydimethylsiloxane显示文摘 | XIAO Xinze Lü Chao WANG Gong XU Ying WANG Jiping YANG Hai | 2015 | Chemical Research in Chinese Universities2015,31,3: | 3 |
| 18 | Depositional Environments of the Upper Permian Quartzose Sandstone(Shandong Province, North China): Insight from Trace Element Geochemistry显示文摘The depositional environment of the Upper Permian quartzose sandstone(Kuishan sandstone in Shihezi Formation of Upper Permian) in the North China epicontinental basin is controversial. In order to test the previous hypotheses, we analyzed sedimentological characteristics of the Kuishan sandstones in outcrops and boreholes, and carried out trace element geochemical analysis by electron probe microanalyzer. Three lithofacies were recognized, including normal-graded conglomerate(Cng), trough and planar cross-bedded coarse sandstone(CStpc), and planar cross-bedded medium sandstone(MSpc). Normal-graded conglomerate(Cng) formed in the meandering river or deltaic distributary channels. Trough and planar cross-bedded coarse sandstone(CStpc) formed in meandering river or distributary channels of near-source deltaic plain. Planar cross-bedded medium sandstone(MSpc) formed in the siliciclastic beach with high- to moderate-energy conditions. By the petrology and trace elements analysis, three relatively large-scale transgressions were revealed. Each transgression was reflected by the lower content of Ba and ratios of Fe/Mn, and the high content of B and ratios of B/Ga. The ratios of Ni/Co of all samples are all lower than 2, suggesting oxygen-enriched shallower water environment during deposition of the Kuishan sandstones. | Dawei Lü Zengxue Li Jitao Chen Ying Liu Zengqi Zhang Jipo Liang Haiyan Liu | 2015 | Journal of Earth Science2015,26,2: | 2 |
| 19 | Comparative mitochondrial genome analysis of Varunidae and its phylogenetic implications显示文摘Complete mitochondrial genomes(mitogenomes)can indicate phylogenetic relationships,as well as useful information for gene rearrangement mechanisms and molecular evolution.Currently,the phylogenetic location of the genus Varuna(Brachyura:Varunidae)has not been well resolved mainly because of limited representatives(only two extant species).Here,we determined a new mitogenome of this genus(Varuna litterata)and added the published mitogenomes to reconstruct the phylogeny of Varunidae.The 16368-bp mitogenome contains the entire set of 37 genes and a putative control region.The characteristics of this newly sequenced mitogenome were described and compared with the other 15 Varunidae mitogenomes.All 16 analyzed mitogenomes have identical gene order and similar molecular features.The sliding window and genetic distance analyses demonstrate highly variable nucleotide diversity,with comparatively low variability of COI and COII,and high variability of ND6.The nonsynonymous/synonymous substitution rates(dN/dS ratio)analysis shows that all 13 PCGs are under purifying selection and ATP8 gene evolves under the least selective pressure.Twelve tRNA genes,two rRNAs,one PCG,and the putative control region are found to be rearranged with respect to the pancrustacean ground pattern gene order.Tandem duplication/random loss model is adopted to explain the large-scale gene rearrangement events occurring in Varunidae mitogenomes.Phylogenetic analyses show that all Varunidae species are placed into one group,and form a sister clade with Macrophthalmidae.Nevertheless,the phylogenetic relationships within Varunidae are not completely consistent based on the two different datasets used in this study.These findings will contribute to a better understanding of gene rearrangement and molecular evolution in Varunidae mitogenomes,as well as provide insights into the phylogenetic studies of Brachyura. | Ying Zhang Li Gong Xinting Lu Zengliang Miao Lihua Jiang Bingjian Liu Liqin Liu Pengfei Li Xu Zhang Zhenming Lü | 2022 | Acta Oceanologica Sinica2022,41,6: | 2 |
| 20 | The effects of two free-floating plants (Eichhornia crassipes and Pistia stratiotes) on the burrow morphology and water quality characteristics of pond loach (Misgurnus anguillicaudatus) habitat显示文摘Loach exhibit conspicuous drilling behaviors in the mud of shallow waters,yet their burrow morphology and the factors affecting this behavior have received little attention.We characterized the burrow morphology and water quality of the pond loach Misgurnus anguillicaudatus in three scenarios:in tanks without plants,tanks with the free-floating plant water hyacinth Eichhornia crassipes,and tanks with water lettuce Pistia stratiotes.Water hyacinth effectively removed water TN,COD,NO3-N and NH4-N,and water lettuce removed water TP and NH4-N.Water hyacinth and water lettuce markedly reduced water turbidity and DO,increased TOC and EC.Water hyacinth purified water more effectively than water lettuce,providing a suitable habitat for loach feeding,living and burrowing.The burrow structures were V-shaped,Y-shaped,inverted L-shaped,or complicated dendritic networks composed of multiple V shapes.The hyacinth treatment was characterized by the greatest burrow volume,length,depth,and structural complexity,but the opening size was reduced by dense root mat coverage.Burrows in the water lettuce treatment were characterized by intermediate volume,length,branches and sinuosity,but they had the largest opening and pit size.The control treatment had a flat bottom with the smallest,shortest burrows.This study indicates that free-floating plants improve habitat suitability and change burrow morphology and may be used to improve loach breeding methods。 | Jinqing Wang Guihua Fu Weiyue Li Ying Shi Jicai Pang Qiang Wang Weiguang Lü Change Liu Jiansheng Liu | 2018 | Aquaculture and Fisheries2018,3,1: | 2 |