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1ABO sequence analysis in an AB type with anti-B patient显示文摘ABO blood group system is the first to be discovered and the most clinically important in transfusion medicine.1The ABO gene encodes a glycosyltransferase which synthesize the oligosaccharide epitopes.The difference between the consensus A gene (A101 allele) usually used as the reference and the consensus B gene (B101 allele) are 7 in-frame single nucleotide polymorphisms (SNPs),among which only 4 alleles cause amino acid mutations in the enzyme.When A allele was inherited from one parent and B allele was inherited from the other which produced the AB blood group,this is known as trans-AB.Cis-AB is characterized as mutant ABO alleles encoding a glycosyltransferase capable of synthesizing both A and B antigens which is very rare.Chen Qing Xiao Jianyu Wang Shuya Li Jiahuang Du Leilei Lu Le Huang Chengyin Li Min Li Ping 2014Chinese Medical Journal2014,,5:17
2nterferon alpha (IFNα)-induced TRIM22 interrupts HCV 'eplication by ubiquitinating NS5A显示文摘Chen Yang Xinhao Zhao Dakang Sun Leilei Yang Chang Chong Yu Pan Xiumei Chi Yanhang Gao Moli Wang Xiaodong Shi Haibo Sun Juan Lv Yuanda Gao Jin Zhong Junqi Niu Bing Sun 2016Cellular & Molecular Immunology2016,13,1:13
3Effects of subchronic oral toxic metal exposure on the intestinal microbiota of mice显示文摘Oral exposure to toxic metals such as cadmium(Cd), lead(Pb), copper(Cu) and aluminum(Al) can induce various adverse health effects in humans and animals. However, the effects of these metals on the gut microbiota have received limited attention. The present study demonstrated that long-term toxic metal exposure altered the intestinal microbiota of mice in a metal-specific and time-dependent manner.Subchronic oral Cu exposure for eight weeks caused a profound decline in gut microbial diversity in mice,whereas no significant changes were observed in groups treated with other metals. Cd exposure significantly increased the relative abundances of organisms from the genera Alistipes and Odoribacter and caused marked decreases in Mollicutes and unclassified Ruminococcaceae. Pb exposure significantly decreased the abundances of eight genera: unclassified and uncultured Ruminococcaceae, unclassified Lachnospiraceae, Ruminiclostridium_9, Rikenellaceae_RC9_gut_group, Oscillibacter, Anaerotruncus and Lachnoclostridium. Cu exposure affected abundances of the genera Alistipes, Bacteroides,Ruminococcaceae_UCG-014, Allobaculum, Mollicutes_RF9_norank, Rikenellaceae_RC9_gut_group,Ruminococcaceae_unclassified and Turicibacter. Al exposure increased the abundance of Odoribacter and decreased that of Anaerotruncus. Exposure to any metal for eight weeks significantly decreased the abundance of Akkermansia. These results provide a new understanding regarding the role of toxic metals in the pathogenesis of intestinal and systemic disorders in the host within the gut microbiota framework.Qixiao Zhai Tianqi Li Leilei Yu Yue Xiao Saisai Feng Jiangping Wu Jianxin Zhao Hao Zhang Wei Chen 2017Science Bulletin2017,62,12:12
4Mechanism of intercalation and deintercalation of lithium ions in graphene nanosheets显示文摘Graphene nanosheets (GNSs) were synthesized by reducing exfoliated graphite oxides. Their structure, surface morphology and lithium storage mechanism were characterized and investigated systematically using X-ray diffraction, atomic force microscopy, scanning electron microscopy, charge-discharge tests, cyclic voltammetry and electrochemical impedance spectroscopy. It was found that the GNSs, which were obtained via chemical synthesis, were primarily less than 10 graphene layers. The GNS electrodes, which were fabricated from the reduced GNSs, exhibited an enhanced reversible lithium storage capacity and good cyclic stability when serving as anodes in lithium-ion batteries. Also, the first-cycle irreversible capacities of the system were relatively high, because of the formation of a solid electrolyte interphase film on the surface of the GNS electrode and the spontaneous stacking of GNSs during the first lithiation. The electrochemical impedance spectroscopy results suggest that the solid electrolyte interphase film on the GNS electrode during first lithiation were primarily formed at potentials between 0.95 and 0.7 V. Also, the symmetry factor of the charge transfer was measured to be 0.446.TIAN LeiLei ZHUANG QuanChao LI Jia SHI YueLi CHEN JianPeng LU Feng SUN ShiGang 2011Chinese Science Bulletin2011,56,30:11
5Effects of two polybrominated diphenyl ethers(BDE-47,BDE-209) on the swimming behavior, population growth and reproduction of the rotifer Brachionus plicatilis显示文摘Polybrominated diphenyl ethers(PBDEs) are new kinds of persistent organic pollutants(POPs) and their potential threats to the equilibrium and sustainability of marine ecosystems have raised worldwide concerns. Here, two kinds of PBDEs, tetra-BDE(BDE-47)and deca-BDE(BDE-209) were applied, and their toxic effects on the swimming behavior,population growth and reproduction of Brachionus plicatilis were investigated. The results showed that:(1) The actual concentrations of BDE-47 and-209 in the seawater phase measured by GC–MS(Gas Chromatography-Mass Spectrometer) were much lower than their nominal concentrations.(2) In accordance with the 24-hr acute tests, BDE-209 did not show any obvious swimming inhibition to rotifers, but a good correlation did exist between the swimming inhibition rate and BDE-47 concentration suggesting that BDE-47 is more toxic than BDE-209.(3) Both BDE-47 and-209 had a significant influence on the population growth and reproduction parameters of B. plicatilis including the population growth rate, the ratio of ovigerous females/non-ovigerous females(OF/NOF), the ratio of mictic females/amictic females(MF/AF), resting egg production and the mictic rate, which indicate that these parameters in B. plicatilis population were suitable for monitoring and assessing PBDEs. Our results suggest that BDE-47 and-209 are not acute lethal toxicants and may pose a low risk to marine rotifers at environmental concentrations for short-term exposure. They also accumulate differently into rotifers. Further research data are needed to understand the mechanisms responsible for the effects caused by PBDEs and to assess their risks accurately.Jingjing Sha You Wang Jianxia Lv Hong Wang Hongmei Chen Leilei Qi Xuexi Tang 2015Journal of Environmental Sciences2015,27,2:9
6Particle properties in granular activated carbon filter during drinking water treatment显示文摘The elemental composition and bacteria attached in particles were investigated during granular activated carbon (GAC) filtration.The experimental results showed that trapped influent particles could form new,larger particles on GAC surface.The sloughing of individuals off GAC surface caused an increase in effluent particles in the size range from 5 to 25 μm.The selectivity for element removal in GAC filters caused an increasing proportion of metallic elements in the effluent particles.The distribution of molar ratio indicated a complicated composition for large particles,involving organic and inorganic substances.The organic proportion accounted for 40% of total carbon attached to the particles.Compared with dissolved carbon,there was potential for the formation of trihalomethanes by organic carbon attached to particles,especially for those with size larger than 10 μm.The pure carbon energy spectrum was found only in the GAC effluent and the size distribution of carbon fines was mainly above 10 μm.The larger carbon fines provided more space for bacterial colonization and stronger protection for attached bacteria against disinfection.The residual attached bacteria after chorine disinfection was increased to 10 2-10 3 CFU/mL within 24 hours at 25°C.Tao Lin Wei Chen Leilei Wang 2010Journal of Environmental Sciences2010,22,5:9
7Synergetic catalytic removal of chlorobenzene and NOχfrom waste incineration exhaust over MnNb0.4Ce0.2Oχcatalysts:Performance and mechanism study显示文摘Nb doped MnCe0.2Ox complex oxides catalysts prepared via a homogeneous precipitation method were investigated for synergistic catalytic removal of NOx and chlorobenzene(CB)at low temperatures.The MnNb0.4Ce0.2Ox catalyst with a molar ratio of Nb/Mn=0.4 exhibits excellent activity and the NOx and CB removal efficiency reaches 94.5%and 96%at 220℃,respectively.Furthermore,the NOx and CB removal efficiency of MnNb0.4Ce0.2Ox still remains above 80%after injecting 300 ppm SO2 and 7 vol%H2 O for 36 h.In addition,the presence of CB and NOx+NH3 can improve the NOx and CB removal efficiency of MnNb0.4Ce0.2Ox,respectively.The analysis results from N2-BET,Py-IR,H2-TPR and NH3-TPD reveal that the introduction of Nb increases the average pore size,pore volume and surface area,promoted the growth of Lewis acid amount obviously,and enhances redox ability of MnCe0.2Ox at 100-250℃.Moreover,the molecular migration process of NOx,NH3,CB and SO2 in NH3-SCR and CB oxidation reaction over MnNb0.4Ce0.2Ox catalysts were systematically studied.In situ DRIFTS,FT-IR and XPS also confirm that the adsorption of sulfate species and SO2 on the surface of MnNb0.4Ce0.2Ox is inhibited effectively by the introduction of Nb in the presence of SO2 and H2 O.Moreover,Nb additives also enhance the structural stability of MnNb0.4Ce0.2Ox,due to the interactions among Mn,Nb and Ce.The NH3-TPD,H2-TPR and in situ DRIFTS results also confirm that the MnNb0.4Ce0.2Ox still retains abundant acid sites and high redox ability in the presence of SO2 and H2O.In summary,MnNb0.4Ce0.2Ox catalysts represent a promising and effective candidate for controlling NOx and CB at low temperatures.Bo Yang Qijie Jin Qiong Huang Mindong Chen Leilei Xu Yuesong Shen Haitao Xu Shemin Zhu Xiujun Li 2020Journal of Rare Earths2020,38,11:6
8Chromosome 1q21 amplification and oncogenes in hepatocellular carcinoma显示文摘Hepatocellular 癌(HCC ) 在之中人的恶意最致命。在人的 multistep hepatocarcinogenesis 期间, genomic 获得在 proto-oncogenes 的激活代表重要机制。在许多情形,激活 oncogenes 为癌症治疗学作为预示的标记和目标两个都保持临床的含意。染色体 1q 拷贝的获得是在 HCC 的最经常检测的改变之一, 1q21 是最经常的最小的放大区域(3 月) 。更好的理解生理并且在 1q21 amplicon 以内的目标基因的 pathophysiological 角色将显著地在 HCC 致病改进我们的知识,并且可以导致忍受 1q21 的扩大的 HCC 的一个更有效的管理。如此的知识为 HCC 治疗为新治疗学的策略的发展有长期的含意。我们的研究组和其它,在 HCC 集中了于象 JTB, CKS1B,和 CHD1L 那样的 1q21 目标基因的鉴定和描述前进。在这评论,我们将在 1q21 amplicon 以内总结已知的目标基因的当前的科学知识, CHD1L 的精确 oncogenic 机制将详细被讨论。Leilei CHEN Tim Hon Man CHAN Xin-yuan GUAN 2010Acta Pharmacologica Sinica2010,31,9:6
9Effect of fertilization patterns on the assemblage of weed communities in an upland winter wheat field显示文摘Aims Understanding the response of farmland weed community assembly to fertilization is important for designing better nutrient management strategies in integrated farmland ecological systems.Many studies have focused on weed characteristics,mainly crop–weed competition responses to fertilization or weed communities alone.However,weed community assembly in association with crop growth is poorly understood in the agroecosystems,but is important for the determination of integrated weed management.Biodiversity promotes ecosystem productivity in the grassland,but whether it applies to the agroecosystems is unclear.Based on an 11-year field experiment,the cumulative effects of different fertilization patterns on the floristic composition and species diversity of farmland weed communities along with wheat growth in a winter wheat–soybean rotation were investigated.Methods The field trial included five fertilization patterns with different combinations of N,P and K fertilizers.Species composition and diversity of weed communities,aboveground plant biomass and nutrient accumulation of weeds and winter wheat,light penetration to the ground surface and wheat yield were measured at each plot in 2009 and 2010.Multivariate analysis,regression and analysis of variance were used to analyze the responses of these parameters to the different fertilization treatments.Important Findings Four dominant weeds(Galium aparine L.,Veronica persica Poir.,Vicia sativa L.and Geranium carolinianum L.)accounted for~90%of the total weed density in the 2 years of experimental duration.The residual weed community assembly was influenced primarily by topsoil available nutrients in the order P>N>K.Competition for nutrients and solar radiation between crops and weeds was the main indirect effect of fertilization on the changes in weed community composition and species diversity.The indices of species diversity(species richness,Shannon–Wiener,Pielou and Simpson indices)showed significant linear relationships with wheat yield.The balanced fertilization treatment was more efficient at inhibiting the potential growth of weeds because of solar radiation being intercepted by wheat.These results support the conclusion that wheat yield is favored by balanced fertilization,whereas the weed community is favored by PK fertilization in terms of density and diversity.However,the negative effects on wheat yield may be compromised by simultaneous positive effects of weed communities in the fertilization treatments,for instance,the NP and NK treatments,which are intermediate in terms of increasing wheat production and to a level maintaining a diverse community.Leilei Tang Kaiyuan Wan Chuanpeng Cheng Ruhai Li Daozhong Wang Junfeng Pan Yong Tao Juan Xie Fang Chen 2014Journal of Plant Ecology2014,7,1:6
10新型水禽用禽流感载体疫苗可有效阻断H5亚型禽流感病毒的复制和扩散显示文摘水禽是禽流感病毒的储存宿主,是环境中禽流感病毒的主要来源。在我国水禽种类中,鸭子占有比例最大。我国水禽年养殖量达30-40亿只,占世界养殖总量的70%以上,养殖方式千差万别,地域分布广泛。一方面,鸭子感染多数禽流感病毒后不发病、不死亡,病毒在肠道内增殖,而后向环境释放大量病毒粒子,这些隐性携带病毒的鸭子被称为传播禽流感病毒的“特洛伊木马”,是家禽、哺乳动物乃至人类最主要的禽流感传染源。另一方面,某些流感病毒对鸭子自身呈高致病性,感染后引起发病和死亡,造成较大的经济损失。Pucheng Chen Leilei Ding Yongping Jiang 2019中国预防兽医学报2019,41,11:5
11Simultaneous determination of 15 pesticide residues in Chinese cabbage and cucumber by liquid chromatography-tandem mass spectrometry utilizing online turbulent flow chromatography显示文摘In this experiment,a liquid chromatography tandem mass spectrometry method was built to determine 15 pesticide residues in Chinese cabbage and cucumber samples based on online turbulent flow chromatography purification.After modified quick,easy,cheap,effective,rugged,and safe(QuEChERS)extraction,extracts were directly injected to the TLX(TurboFlow Liquid Xcalibur)system and brought to TurboFlow™columns for on-line purification and then transferred to analytical column for further separation and analysis.TurboFlow™columns types,transfer flow rate,and transfer time were optimized.Limits of detection and limits of quantification of the method obtained for 15 pesticide residues were ranged between 0.2–1.0μg/kg and 0.5–2.0μg/kg in Chinese cabbage and cucumber samples.Recoveries of pesticide residues were in range of 75.3%–103.7%.Matrix effects for 15 pesticides were in range of 5.6%–106.6%.The developed method has been successfully used for the determination of 15 pesticide residues in real samples.Sufang Fan Junmei Ma Meirong Cao Juan Wang Leilei Zhang Yan Zhang Qiang Li Jia Chen 2021Food Science and Human Wellness2021,10,1:5
12Effect of Salinity on the Zooplankton Community in the Pearl River Estuary显示文摘Understanding the relationship between the zooplankton distribution and salinity may provide key information to understand ecosystem function under the condition of a global mean sea level rise caused by global climate change.However,little is known about how increasing salinity level will affect the entire zooplankton community on a large scale.Here we completed 1 year of field investigations on the Pearl River Estuary and analyzed the distribution and structure of the zooplankton community.A total of 68 zooplankton species were identified during the survey.The number and diversity(richness,evenness,Shannon index,and Simpson’s index)of the zooplankton species decreased as salinity increased from 0.10 to 21.26.Salinity negatively affected the abundances of rotifers,cladocerans,and total zooplankton,while it had little effect on copepod abundance.Some salt-tolerant species,such as Keratella tropica,Polyarthra vulgaris,and Paracalanus crassirostris,survived at high-salinity sites.A pattern was observed at all sites:the peak in copepod abundance always occurred when rotifers were abundant(sites S1 and S2)or after rotifer abundance reached a maximum level(sites S3,S4,and S5).In general,salinity was the most important environmental factor shaping zooplankton biodiversity and abundance.This study provides insight into potential biodiversity and structure of the zooplankton community in response to salinity change.YUAN Danni CHEN Liangdong LUAN Leilei WANG Qing YANG Yufeng 2020Journal of Ocean University of China2020,19,6:5
13Cancer metabolism and tumor microenvironment:fostering each other?显示文摘The changes associated with malignancy are not only in cancer cells but also in environment in which cancer cells live.Metabolic reprogramming supports tumor cells’high demand of biogenesis for their rapid proliferation,and helps tumor cells to survive under certain genetic or environmental stresses.Emerging evidence suggests that metabolic alteration is ultimately and tightly associated with genetic changes,in particular the dysregulation of key oncogenic and tumor suppressive signaling pathways.Cancer cells activate HIF signaling even in the presence of oxygen and in the absence of growth factor stimulation.This cancer metabolic phenotype,described firstly by German physiologist Otto Warburg,ensures enhanced glycolytic metabolism for the biosynthesis of macromolecules.The conception of metabolite signaling,i.e.,metabolites are regulators of cell signaling,provides novel insights into how reactive oxygen species(ROS)and other metabolites deregulation may regulate redox homeostasis,epigenetics,and proliferation of cancer cells.Moreover,the unveiling of noncanonical functions of metabolic enzymes,such as the moonlighting functions of phosphoglycerate kinase 1(PGK1),reassures the importance of metabolism in cancer development.The metabolic,microRNAs,and ncRNAs alterations in cancer cells can be sorted and delivered either to intercellular matrix or to cancer adjacent cells to shape cancer microenvironment via media such as exosome.Among them,cancer microenvironmental cells are immune cells which exert profound effects on cancer cells.Understanding of all these processes is a prerequisite for the development of a more effective strategy to contain cancers.Yiyuan Yuan Huimin Li Wang Pu Leilei Chen Dong Guo Hongfei Jiang Bo He Siyuan Qin Kui Wang Na Li Jingwei Feng Jing Wen Shipeng Cheng Yaguang Zhang Weiwei Yang Dan Ye Zhimin Lu Canhua Huang Jun Mei Hua-Feng Zhang Ping Gao Peng Jiang Shicheng Su Bing Sun Shi-Min Zhao 2022Science China(Life Sciences)2022,65,2:5
14Graphitizing N-doped mesoporous carbon nanospheres via facile single atom iron growth for highly efficient oxygen reduction reaction显示文摘Single atom catalyst is of great importance for the oxygen reduction reaction(ORR).However,facile preparation of single atom catalyst without using well-designed precursors or labor-intensive acid leaching remains an urgent challenge.Herein,a simple pyrolysis of Fe3+-loaded mesoporous phenolic resin(mPF)-melamine precursor is used to prepare the single atom iron-anchored N-doped mesoporous graphitic carbon nanospheres(Fe/N-MGN).Investigation of the synthesis reveals the appropriate Fe-assisted catalysis effect and mPF template effect,which not only spurs the highly graphitic porous framework of Fe/N-MGN with plentiful pyridinic N/graphitic N,but also assures the dispersed single atom Fe anchoring without elaborated procedures.As a result,the as-synthesized Fe/N-MGN demonstrates high catalytic activity,good durability and excellent methanol tolerance for ORR.This work promises a facile method to regulate the graphitic carbon growth and single atom Fe loading for the highly efficient electrocatalysis.Yunshi Xu Liping Zhu Xuexue Cui Mingyu Zhao Yaling Li Leilei Chen Weicun Jiang Ting Jiang Shuguang Yang Yi Wang 2020Nano Research2020,13,3:5
15Volumetric Changes in Hippocampal Subregions and Memory Performance in Mesial Temporal Lobe Epilepsy with Hippocampal Sclerosis显示文摘In the present study we explored the different patterns of volumetric atrophy in hippocampal subregions of patients with left and right mesial temporal lobe epilepsy with hippocampal sclerosis(TLE-HS). Meanwhile, the memory impairment patterns in Chinese-speaking TLE-HS patients and potential influencing factors were also determined. TLE-HS patients(21 left and 17 right) and 21 healthy controls were recruited to complete T2-weighted imaging and verbal/nonverbal memory assessment. The results showed that both left and right TLE-HS patients had overall reduced hippocampal subregion volumes on the sclerotic side, and cornu ammonis sectors(CA1) exhibited maximum atrophy. The verbal memory of left TLE-HS patients was significantly impaired(P \ 0.001) and was not associated with the volumes of the left hippocampal subregions. Verbal or nonverbal memory impairment was not found in the patients with right TLE-HS. These results suggested that the atrophy of hippocampal subregion volumes cannot account for the verbal memory impairment, which might be related to the functional network.Caihong Ji Lujia Zhu Cong Chen Shuang Wang Leilei Zheng Hong Li 2018Neuroscience Bulletin2018,34,2:4
16Differences in the gene expressive quantities of carbonic anhydrase and cysteine synthase in the weathering of potassium-bearing minerals by Aspergillus niger显示文摘We investigated the differences in the gene expression of carbonic anhydrase(CA)and cysteine synthase(CysM)between two weathering conditions,with either soluble potassium or insoluble potassium.We cultured a strain of A.niger by adopting a variant Czapek medium(using Na2HPO4as a substitute for K2HPO4)in two groups,Group A(containing silicate minerals bearing potassium but without KCl)and Group B(with KCl).We extracted the mRNAs of CA and CysM from these two groups and performed real-time quantitative polymerase chain reactions(RT-qPCR).We constructed relative standard curves by using glyceraldehyde-3-phosphate dehydrogenase(GAPDH)as the reference to confirm a consistent amplification efficiency of the target genes(CA and CysM)and the reference gene and quantified the gene expression of the targets in a relative manner.Our results showed that CA and CysM in Group A were upregulated for 1.7 times and 11.7 times,respectively,compared with those in Group B.Furthermore,we also analyzed some metabolic pathways and functions of the A.niger-induced weathering of potassium-bearing minerals,which involved the synthesizing of these two enzymes.Thus our work provides materials for further study of the roles of A.niger in the metabolic regulation during the weathering process of potassium-bearing minerals.SUN LeiLei XIAO LeiLei XIAO Bo WANG WeiYing PAN Chen WANG ShiJie LIAN Bin 2013Science China Earth Sciences2013,56,12:4
17The normal cell proliferation and wound healing effect of polysaccharides from Ganoderma amboinense显示文摘To study the cell proliferation and wound healing activity of polysaccharides from Ganoderma amboinense(GAMPS),the polysaccharide was extracted by water extraction and alcohol precipitation method,and its monosaccharide composition and molecular weight were analyzed.The effects of different concentrations of GAMPS on the cell proliferation were determined by cell survival rate test,and the wound healing ability of GAMPS to NIH/3T3 cells was detected.The preliminary evaluation of the antioxidant ability of GAMPS was conducted by the oxygen radical absorbance capacity(ORAC).The results showed that the GAMPS was composed of glucose,mannose,and galactose at a molar ratio of 67.62:14.07:7.50,and the weightaverage molecular weights were 5.439×10^(6) and 1.704×10^(5) g/mol by using high-performance gel-permeation chromatography-multiple angle laser scatter(HPGPC-MALS)analysis.GAMPS(0.2μg/μL)showed the strongest proliferation ability to THP-1 cells,with cell survival rate of 178.7%.The wound healing effect of GAMPS(0.1μg/μL)was obvious on NIH/3T3 and 3.75μg/μL of GAMPS showed the strongest total antioxidant ability.All the results indicate that GAMPS promotes cell proliferation,and has cell wound healing effect and strong antioxidant activity.The results provide theoretical foundation for the development and utilization of GAMPS.Shuangzhi Zhao Ming Lei Hui Xu Hailun He Alexander Suvorov Junhua Wang Jiying Qiu Qingxin Zhou Jinyu Yang Leilei Chen 2021Food Science and Human Wellness2021,10,4:4
18Particle size distribution and property of bacteria attached to carbon fines in drinking water treatment显示文摘The quantitative change and size distribution of particles in the effluents from a sand filter and a granular activated carbon (GAC) filter in a drinking water treatment plant were investigated. The average total concentration of particles in the sand filter effluent during a filter cycle was 148 particles/mL, 27 of which were larger than 2 μm in size. The concentration in the GAC effluent (561 particles/mL) was significantly greater than that in the sand filter effluent. The concentration of particles larger than 2 μm in the GAC filter effluent reached 201 particles/mL, with the amount of particles with sizes between 2 μm and 15 μm increasing. The most probable number (MPN) of carbon fines reached 43 unit/L after six hours and fines between 0.45 μm and 8.0 μm accounted for more than 50%. The total concentration of outflowing bacteria in the GAC filter effluent, 350 CFU (colony-forming units) /mL, was greater than that in the sand filter effluent, 210 CFU/mL. The desorbed bacteria concentration reached an average of 310 CFU/mg fines. The disinfection efficiency of desorbed bacteria was lower than 40% with 1.5 mg/L of chlorine. The disinfection effect showed that the inactivation rate with 2.0 mg/L of chloramine (90%) was higher than that with chlorine (70%). Experimental results indicated that the high particle concentration in raw water and sedimentation effluent led to high levels of outflowing particles in the sand filter effluent. The activated carbon fines in the effluent accounted for a small proportion of the total particle amount, but the existing bacteria attached to carbon fines may influence the drinking water safety. The disinfection efficiency of desorbed bacteria was lower than that of free bacteria with chlorine, and the disinfection effect on bacteria attached to carbon fines with chloramine was better than that with only chlorine.Wang Leilei Chen Wei Lin Tao 2008Water Science and Engineering2008,1,2:4
19Regulated cell death(RCD)in cancer:key pathways and targeted therapies显示文摘Regulated cell death(RCD),also well-known as programmed cell death(PCD),refers to the form of cell death that can be regulated by a variety of biomacromolecules,which is distinctive from accidental cell death(ACD).Accumulating evidence has revealed that RCD subroutines are the key features of tumorigenesis,which may ultimately lead to the establishment of different potential therapeutic strategies.Hitherto,targeting the subroutines of RCD with pharmacological small-molecule compounds has been emerging as a promising therapeutic avenue,which has rapidly progressed in many types of human cancers.Thus,in this review,we focus on summarizing not only the key apoptotic and autophagy-dependent cell death signaling pathways,but the crucial pathways of other RCD subroutines,including necroptosis,pyroptosis,ferroptosis,parthanatos,entosis,NETosis and lysosomedependent cell death(LCD)in cancer.Moreover,we further discuss the current situation of several small-molecule compounds targeting the different RCD subroutines to improve cancer treatment,such as single-target,dual or multiple-target small-molecule compounds,drug combinations,and some new emerging therapeutic strategies that would together shed new light on future directions to attack cancer cell vulnerabilities with small-molecule drugs targeting RCD for therapeutic purposes.Fu Peng Minru Liao Rui Qin Shiou Zhu Cheng Peng Leilei Fu Yi Chen Bo Han 2022Signal Transduction and Targeted Therapy2022,7,9:4
20Dopamine in Parkinson's Disease: Precise Supplementation with Motor Planning显示文摘Parkinson’s disease (PD) is the second most common neurodegenerative disorder which mainly affects the motor system. The pathological characteristics of PD include the loss of dopaminergic neurons in the substantia nigra region and dopamine depletion in the striatum.Dopamine functions as a neurotransmitter thatLeilei Chen Junxia Xie 2018Neuroscience Bulletin2018,34,5:3
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