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1NIR-induced highly sensitive detection of latent finger- marks by NaYF4:Yb,Er upconversion nanoparticles in a dry powder state显示文摘通常在犯罪场面发现 fingermarks 的大多数是潜伏的并且,这样为检测潜伏的 fingermarks 的一个有效方法是很重要的。然而,传统的发展中技术有象低察觉敏感,高背景干扰,复杂操作,和高毒性那样的缺点。处理这挑战,我们采用了荧光灯 NaYF 4:Yb,Er upconversion nanoparticles (UCNP ) 它能发荧光可见的光什么时候由 980 nm 使对人安全的在红外线附近的光激动,到污点,各种各样的底层上的潜伏的 fingermarks 出现。 UCNP 成功地被用作一篇小说荧光灯为有包括非渗入的材料(玻璃,大理石,铝合金表,不锈钢表,铝陪衬,和塑料卡片)的各种各样的底层上的高敏感,低背景,高效率,和低毒性的潜伏的 fingermarks 的察觉的标签,渗入半的材料(地板皮革,陶器的瓦,木头地板,和油漆木头),和象报纸的各种各样的类型那样的渗透的材料。这个工作证明 UCNP 是一万用荧光灯为几乎任何东西上的 fingermarks 的灵巧的察觉的标签材料,在法庭的科学启用他们的实际应用。Meng Wang Ming Li Mingying Yang Xiaomei Zhang Aoyang Yu Ye Zhu Penghe Qiu Chuanbin Mao 2015Nano Research2015,8,6:20
2Geochemical and isotopic characteristics of volcanic rocks from the northern East China Sea shelf margin and the Okinawa Trough显示文摘Volcanic rocks both from the northern East China Sea (NECS) shelf margin and the northern Okinawa Trough are subalkaline less aluminous,and lower in High Field Strength Elements (HFSE).These rocks are higher in Large Ion Lithophile Elements (LILE),thorium and uranium contents,positive lead anomalies,negative Nb-Ta anomalies,and enrichment in Light Rare Earth Elements (LREE).Basalts from the NECS shelf margin are akin to Indian Ocean Mid-Ocean Ridge Basalt (MORB),and rhyolites from the northern Okinawa Trough have the highest 207 Pb/ 204 Pb and 208 Pb/ 204 Pb ratios.The NECS shelf margin basalts have lower 87 Sr/ 86 Sr ratios,ε N d and σ 18 O than the northern Okinawa Trough silicic rocks.According to 40 K– 40 Ar isotopic ages of basalts from the NECS shelf margin,rifting of the Okinawa Trough may have been active since at least 3.65–3.86 Ma.The origin of the NECS shelf margin basalt can be explained by the interaction of melt derived from Indian Ocean MORB-like mantle with enriched subcontinental lithosphere.The basalts from both sides of the Okinawa Trough may have a similar origin during the initial rifting of the Okinawa Trough,and the formation of basaltic magmas closely relates to the thinning of continental crust.The source of the formation of the northern Okinawa Trough silicic rocks was different from that of the middle Okinawa Trough,which could have been generated by the interaction of basaltic melt with an enriched crustal component.From the Ryukyu island arc to East China,the Cenozoic basalts have apparently increasing trends of MgO contents and ratios of LREE to Heavy Rare Earth Elements (HREE),suggesting that the trace element variabilities of basalts may have been influenced by the subduction of the Philippine Sea plate,and that the effects of subduction of the Philippine Sea plate on the chemical composition of basaltic melts have had a decreasing effect from the Ryukyu island arc to East China.ZENG Zhigang YU Shaoxiong WANG Xiaoyuan FU Yongtao YIN Xuebo ZHANG Guoliang WANG Xiaomei CHEN Shuai 2010Acta Oceanologica Sinica2010,29,4:19
3Whole-genome sequencing of 508 patients identifies key molecular features associated with poor prognosis in esophageal squamous cell carcinoma显示文摘Esophageal squamous cell carcinoma(ESCC)is a poor-prognosis cancer type with limited understanding of its molecular etiology.Using 508 ESCC genomes,we identified five novel significantly mutated genes and uncovered mutational signature clusters associated with metastasis and patients’outcomes.Several functional assays implicated that NFE2L2 may act as a tumor suppressor in ESCC and that mutations in NFE2L2 probably impaired its tumor-suppressive function,or even conferred oncogenic activities.Additionally,we found that the NFE2L2 mutations were significantly associated with worse prognosis of ESCC.We also identified potential noncoding driver mutations including hotspot mutations in the promoter region of SLC35E2 that were correlated with worse survival.Approximately 5.9%and 15.2%of patients had high tumor mutation burden or actionable mutations,respectively,and may benefit from immunotherapy or targeted therapies.We found clinically relevant coding and noncoding genomic alterations and revealed three major subtypes that robustly predicted patients’outcomes.Collectively,we report the largest dataset of genomic profiling of ESCC useful for developing ESCC-specific biomarkers for diagnosis and treatment.Yongping Cui Hongyan Chen Ruibin Xi Heyang Cui Yahui Zhao Enwei Xu Ting Yan Xiaomei Lu Furong Huang Pengzhou Kong Yang Li Xiaolin Zhu Jiawei Wang Wenjie Zhu Jie Wang Yanchun Ma Yong Zhou Shiping Guo Ling Zhang Yiqian Liu Bin Wang Yanfeng Xi Ruifang Sun Xiao Yu Yuanfang Zhai Fang Wang Jian Yang Bin Yang Caixia Cheng Jing Liu Bin Song Hongyi Li Yi Wang Yingchun Zhang Xiaolong Cheng Qimin Zhan Yanhong Li Zhihua Liu-Show 2020Cell Research2020,30,10:19
4Chronic intermittent hypoxia induces cardiac inflammation and dysfunction in a rat obstructive sleep apnea model显示文摘Chronic intermittent hypoxia is considered to play an important role in cardiovascular pathogenesis during the development of obstructive sleep apnea(OSA).We used a well-described OSA rat model induced with simultaneous intermittent hypoxia.Male Sprague Dawley rats were individually placed into plexiglass chambers with air pressure and components were electronically controlled.The rats were exposed to intermittent hypoxia 8 hours daily for 5weeks.The changes of cardiac structure and function were examined by ultrasound.The cardiac pathology,apoptosis,and fibrosis were analyzed by H&E staining,TUNNEL assay,and picosirius staining,respectively.The expression of inflammation and fibrosis marker genes was analyzed by quantitative real-time PCR and Western blot.Chronic intermittent hypoxia/low pressure resulted in significant increase of left ventricular internal diameters(LVIDs),endsystolic volume(ESV),end-diastolic volume(EDV),and blood lactate level and marked reduction in ejection fraction and fractional shortening.Chronic intermittent hypoxia increased TUNNEL-positive myocytes,disrupted normal arrangement of cardiac fibers,and increased Sirius stained collagen fibers.The expression levels of hypoxia induced factor(HIF)-l α,NF-κB,IL-6,and matrix metallopeptidase 2(MMP-2) were significantly increased in the heart of rats exposed to chronic intermittent hypoxia.In conclusion,the left ventricular function was adversely affected by chronic intermittent hypoxia,which is associated with increased expression of HIF-lα and NF-κB signaling molecules and development of cardiac inflammation,apoptosis and fibrosis.Qin Wei Yeping Bian Fuchao Yu Qiang Zhang Guanghao Zhang Yang Li Songsong Song Xiaomei Ren Jiayi Tong 2016The Journal of Biomedical Research2016,30,6:15
5Species richness loss after nutrient addition as affected by N:C ratios and phytohormone GA_(3)contents in an alpine meadow community显示文摘Aims From the light-competition hypothesis,competition for light is asymmetric and the observed increases in plant-size variability with increasingly denser canopies are primarily due to competition for light.Greater plant height provides pre-emptive access to light and produces increased height differences among species.The question is what produces these differences in plant height or height growth response among species in response to fertilization.Methods In 2009,a field experiment of N,P and N+P enrichments at three levels each was initiated in an alpine meadow on the northeast Qinghai-Tibet Plateau.Effects of fertilization on species richness,aboveground net primary production(ANPP),relative light intensity and plant height of different plant functional groups were determined.Festuca ovina(grass),Kobresia humilis(sedge),Oxytropis ochrocephala(legume),Taraxacum lugubre(rosette forb)and Geranium pylzowianum(upright forb)were selected as exemplars of each of the indicated functional groups.The N:C ratios in aboveground biomass,gibberellic acid(GA_(3))concentrations in leaves,plant heights and height relative growth rate(RGR)of these exemplar species were analyzed in detail.Important Findings Species richness of grasses significantly increased with increasing N+P levels.Species richness of legumes and upright forbs decreased after N and N+P additions.P addition had no significant effect on species richness.The effects of N+P addition on species richness and ANPP were consistently stronger than those of the single N or P fertilization.Reductions in species richness caused by nutrient addition paralleled the increases in ANPP and decreases in light intensity under the canopies,indicating indirect effect of nutrient addition on species richness via ANPP-induced light competition.The exemplar species that responded most positively to fertilization in height and RGR also displayed stronger increases in their GA_(3) content and N:C ratios.GA_(3) concentrations and N:C ratios were positively correlated with height RGR when the data were pooled for all species.The tallest and the fastest-growing grass,F.ovina,had the largest increase in N:C ratios and the highest leaf GA_(3) concentrations after nutrient addition.These results indicated that differential responses of GA_(3) concentrations and N:C ratios to fertilization were related to the inequality in plant heights among species.Xiaomei Sun Kailiang Yu Herman HShugart Gang Wang 2016Journal of Plant Ecology2016,9,2:10
6Timing of transplantation of autologous bone marrow derived mesenchymal stem cells for treating myocardial infarction显示文摘It is still unclear whether the timing of intracoronary stem cell therapy affects the therapeutic response in patients with myocardial infarction.The natural course of healing the infarction and the presence of putative homing signals within the damaged myocardium appear to favor cell engraftment during the transendothelial passage in the early days after reperfusion.However,the adverse inflammatory environment,with its high oxidative stress,might be deleterious if cells are administered too early after reperfusion.Here we highlight several aspects of the timing of intracoronary stem cell therapy.Our results showed that transplantation of bone marrow mesenchymal stem cells at 2 4 weeks after myocardial infarction is more favorable for reduction of the scar area,inhibition of left ventricular remodeling,and recovery of heart function.Coronary injection of autologous bone marrow mesenchymal stem cells at 2 4 weeks after acute myocardial infarction is safe and does not increase the incidence of complications.CHEN YiHuan TENG XiaoMei CHEN WeiQian YANG JunJie YANG ZiYing YU YunSheng SHEN ZhenYa 2014Science China(Life Sciences)2014,57,2:7
7Follistatin-like protein 1 plays a tumor suppressor role in clear-cell renal cell carcinoma显示文摘Background:We previously showed that the expression of follistatin-like protein 1(FSTL1)was significantly down-regulated in metastatic clear-cell renal cell carcinoma(ccRCC).In this study,we aimed to characterize the role of FSTL1 in the development of ccRCC.Methods:The effects of FSTL1 on cell activity and cell cycle were investigated in ccRCC cell lines with altered FSTL1 expression.Gene expression microarray assays were performed to identify the major signaling pathways affected by FSTL1 knockdown.The expression of FSTL1 in ccRCC and its effect on postoperative prognosis were estimated in a cohort with 89 patients.Results:FSTL1 knockdown promoted anchorage-independent growth,migration,invasion,and cell cycle of ccRCC cell lines,whereas FSTL1 overexpression attenuated cell migration.FSTL1 knockdown up-regulated nuclear factor-κB(NF-κB)and hypoxia-inducible factor(HIF)signaling pathways,increased epithelial-to-mesenchymal transition,up-regulated interleukin-6 expression,and promoted tumor necrosis factor-α-induced degradation of NF-κB inhibitor(IκBα)in ccRCC cell lines.FSTL1 immunostaining was selectively positive in epithelial cytoplasm in the loop of Henle,and positive rate of FSTL1 was significantly lower in ccRCC tissues than in adjacent renal tissues(P<0.001).The mul-tivariate Cox regression analysis showed that the intratumoral FSTL1 expression conferred a favorable independent prognosis with a hazard ratio of 0.325(95%confidence interval 0.118-0.894).HIF-2αexpression was negatively cor-related with FSTL1 expression in ccRCC specimens(r=−0.229,P=0.044).Intratumoral expression of HIF-2α,rather than HIF-1α,significantly predicted an unfavorable prognosis in ccRCC(log-rank,P=0.038).Conclusions:FSTL1 plays a tumor suppression role possibly via repressing the NF-κB and HIF-2αsignaling pathways.To increase FSTL1 expression might be a candidate therapeutic strategy for metastatic ccRCC.Yan Liu Xiaojie Tan Wenbin Liu Xi Chen Xiaomei Hou Dan Shen Yibo Ding Jianhua Yin Ling Wang Hongwei Zhang Yongwei Yu Jianguo Hou Timothy C.Thompson Guangwen Cao 2018Cancer Communications2018,38,1:5
8Targeting PFKL with penfluridol inhibits glycolysis and suppresses esophageal cancer tumorigenesis in an AMPK/FOXO3a/BIM-dependent manner显示文摘As one of the hallmarks of cancer,metabolic reprogramming leads to cancer progression,and targeting glycolytic enzymes could be useful strategies for cancer therapy.By screening a small molecule library consisting of 1320 FDA-approved drugs,we found that penfluridol,an antipsychotic drug used to treat schizophrenia,could inhibit glycolysis and induce apoptosis in esophageal squamous cell carcinoma(ESCC).Gene profiling and Ingenuity Pathway Analysis suggested the important role of AMPK in action mechanism of penfluridol.By using drug affinity responsive target stability(DARTS)technology and proteomics,we identified phosphofructokinase,liver type(PFKL),a key enzyme in glycolysis,as a direct target of penfluridol.Penfluridol could not exhibit its anticancer property in PFKL-deficient cancer cells,illustrating that PFKL is essential for the bioactivity of penfluridol.High PFKL expression is correlated with advanced stages and poor survival of ESCC patients,and silencing of PFKL significantly suppressed tumor growth.Mechanistically,direct binding of penfluridol and PFKL inhibits glucose consumption,lactate and ATP production,leads to nuclear translocation of FOXO3a and subsequent transcriptional activation of BIM in an AMPK-dependent manner.Taken together,PFKL is a potential prognostic biomarker and therapeutic target in ESCC,and penfluridol may be a new therapeutic option for management of this lethal disease.Cancan Zheng Xiaomei Yu Yiyao Liang Yidong Zhu Yan He Long Liao Dingkang Wang Yanming Yang Xingfeng Yin Ang Li Qingyu He Bin Li 2022Acta Pharmaceutica Sinica B2022,12,3:4
9Qualitative and quantitative assessment of related substances in the Compound Ketoconazole and Clobetasol Propionate Cream by HPLC-TOF-MS and HPLC显示文摘Related substances in pharmaceutical formulations are associated with their safety, efficacy and stability. However, there is no overall study already published on the assessment of related substances in the Compound Ketoconazole and Clobetasol Propionate Cream. In this work, a reliable HPLC-TOF-MS qualitative method was developed for the analysis of related substances in this preparation with a quick and easy extraction procedure. Besides the active pharmaceutical ingredients, two compounds named ketoconazole impurity B′ optical isomer and ketoconazole impurity E were identified. Furthermore, a new HPLC method for qualitative and quantitative assessment on related substances and degradation products, which were found in the stability test, was established and validated. The single standard to determine multi-components method was applied in the quantitative analysis, which was an effective way for reducing cost and improving accuracy. This study can provide a creative idea for routine analysis of quality control of the Compound Ketoconazole and Clobetasol Propionate Cream.Wenling Yang Xiaomei Yang Fanghua Shi Zhigang Liao Yongkun Liang Liangzhong Yu Ruixun Wang Qing Li Kaishun Bi 2019Journal of Pharmaceutical Analysis2019,9,3:4
10SARS-CoV-2 ORF10 suppresses the antiviral innate immune response by degrading MAVS through mitophagy显示文摘The global coronavirus disease 2019(COVID-19)pandemic caused by severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)has caused severe morbidity and mortality in humans.It is urgent to understand the function of viral genes.However,the function of open reading frame 10(ORF10),which is uniquely expressed by SARS-CoV-2,remains unclear.In this study,we showed that overexpression of ORF10 markedly suppressed the expression of type I interferon(IFN-I)genes and IFN-stimulated genes.Then,mitochondrial antiviral signaling protein(MAVS)was identified as the target via which ORF10 suppresses the IFN-I signaling pathway,and MAVS was found to be degraded through the ORF10-induced autophagy pathway.Furthermore,overexpression of ORF10 promoted the accumulation of LC3 in mitochondria and induced mitophagy.Mechanistically,ORF10 was translocated to mitochondria by interacting with the mitophagy receptor Nip3-like protein X(NIX)and induced mitophagy through its interaction with both NIX and LC3B.Moreover,knockdown of NIX expression blocked mitophagy activation,MAVS degradation,and IFN-I signaling pathway inhibition by ORF10.Consistent with our observations,in the context of SARS-CoV-2 infection,ORF10 inhibited MAVS expression and facilitated viral replication.In brief,our results reveal a novel mechanism by which SARS-CoV-2 inhibits the innate immune response;that is,ORF10 induces mitophagy-mediated MAVS degradation by binding to NIX.Xingyu Li Peili Hou Wenqing Ma Xuefeng Wang Hongmei Wang Zhangping Yu Huasong Chang Tiecheng Wang Song Jin Xue Wang Wenqi Wang Yudong Zhao Yong Zhao Chunqing Xu Xiaomei Ma Yuwei Gao Hongbin He 2022Cellular & Molecular Immunology2022,19,1:4
11Phylogenetic identification and microbial diversity in snow of the summit (8201m) of Cho Oyu Mountain,Tibet显示文摘The bacterial diversity and abundance in snow of the summit(8201 m) of Cho Oyu mountain,Tibet,were analyzed by 16S rRNA gene sequencing followed by scanning electronic microscopy analysis.Most of bacteria were found to be of spherical or oval shape(>95%).Bacterial 16S rDNA sequences were classified into 5 genera(Caulobacter,Ralstonia,Cupriavidus,Pelomonas and Pseudomonas).Gammaproteobacteria were the most abundant(91.25%) among the library that consists of 594 clones.The sequences found in this study are highly similar to those previously retrieved from other cold en-vironments,such as ice core,sea ice,permafrost and snow.The results showed that the cold and barren environments strongly influence the survival of bacteria.The high similarity among sequences retrieved from snow sample and other places,such as ocean,soil and water,suggested that the bacteria in snow,soil and water environments have the same origin.TONG XiaoMei CHEN Fang YU Jun HUA Sang ASAN Ciren LUOSANG JiangBai WANG Wei YU Liang ZHENG XiaoGuang WANG Jian 2008Chinese Science Bulletin2008,53,21:3
12Arsenic concentration in peripheral blood is correlated with efficacy of a Traditional Chinese Medicine regimen containing realgar for the treatment of myelodysplastic syndromes显示文摘OBJECTIVE:To explore the relationship between the efficacy of realgar for the treatment of myelodysplastic syndromes with multilineage dysplasia(MDS-MLD)and arsenic concentration in the peripheral blood of patients.METHODS:In this prospective study,a total of 50 MDS-MLD patients were treated with traditional Chinese drugs containing realgar for 3 months in Xiyuan Hospital from March 2018 to January 2019.Routine blood examination as well as liver and kidney function were monitored before and after treatment.The concentration of arsenic in the peripheral blood was measured using an atomic fluorescence spectrometer after treatment.The correlation between clinical effect and arsenic concentration was analyzed by Spearman’s method.RESULTS:The treatment response rate was 54%.Two patients(4%)achieved complete remission,50%(25 of 50)showed hematologic improvement,and 23 patients had stable disease(23%).No disease progression was observed.Arsenic concentration in the peripheral blood ranged from 14.60 to 85.96μg/L.Clinical efficacy was positively correlated with arsenic concentration(P<0.05).The incidence of mild adverse reactions was 16%.CONCLUSION:A relatively high concentration of arsenic in the peripheral blood may improve the clinical efficacy of realgar in MDS-MLD patients.WANG Dexiu XU Yonggang DU Yu WANG Hongzhi LI Liu HU Xiaomei YANG Xiupeng MA Rou ZHOU Qingbing 2021Journal of Traditional Chinese Medicine2021,41,4:3
13RS and GIS-based Analysis of Landscape Pattern Changes in Urban-rural Ecotone:A Case Study of Daiyue District,Tai' an City,China显示文摘Based on RS data of Daiyue District,Tai'an City in 2000,2005 and 2010,changes of land use types in urban-rural ecotone of Tai'an City from 2000 to 2010 were analyzed.Ecological theories,ArcGIS techniques and landscape structure analysis software Fragstats were applied to select relevant landscape pattern indexes and analyze changes of landscape structure,and compare changes in two durations(2000-2005,2005-2010).The results showed that area of natural landscapes in the study area declined from 2000 to 2010,construction land expanded,land use types were mainly transferred from natural landscapes to man-made landscapes.In terms of landscape level,number of patches(NP),patch density(PD),patch shape index(SHAPE),Shannon's diversity index(SHDI) and Shannon's evenness index(SHEI) increased,the largest patch index(LPI) declined.In terms of type level,arable land were influenced by the most human interventions,large-scale patches turned fragmented,and landscape dominance degraded;woodland landscapes were concentrated in mountainous areas,waterscape indexes showed slight changes.Dominance of regional dominant landscape types degraded,landscape fragmentation and landscape heterogeneity increased,and landscape stability declined.SHI Haopeng YU Kaiqin FENG Yongjun DONG Xiaochang ZHAO Haiyan DENG Xiaomei 2012Journal of Landscape Research2012,4,9:2
14A UDDI Based Shared Resources Management Mechanism in Virtual Enetrprises显示文摘Service and information resources are two kinds of major shared resources in virtual enterprises, where, service resources include third party’s service resources and enterprise’s legacy service resources,and information resources include database resources and file resources. Since service and information resources have distributed, autonomic, remotely bound as well as some other similar characteristics, an implementation mechanism on managing shared resources based on UDDI are presented. XML instances are used to describe resources authorization information, WSDL based special XML instance represents information resource metadata, and these XML instances are referenced by tModel for realizing the purpose of managing shared resources metadata based on UDDI.申德荣 Yu Ge Chen Tian Yin Nan SONG Baoyan Dong Xiaomei 2003High Technology Letters2003,9,4:2
15Effect of Jiaji electroacupuncture in transected rat spinal cord显示文摘We evaluated the effect of Jiaji electroacupuncture on cell proliferation and the expression of markers of endogenous neural stem cell activation after complete spinal cord transection. Female Wistar rats were assigned to 4 groups (n = 24 each): a sham-operated group, a control group, a Jiaji electroacupuncture group, and a Jiaji electroacupuncture preconditioning group. Motor function was significantly improved in the acupuncture groups compared to the control group at 7 and 14 d. Numbers of bromodeoxyuridine (BrdU)-, nestin-, and glial fibrillary acidic protein (GFAP)-positive cells were significantly greater in the acupuncture groups than in the controls at each time point. Expression of nestin and GFAP mRNA was significantly higher in the acupuncture groups than in the controls at each time point. Thus, Jiaji electroacupuncture and preconditioning may promote the proliferation of endogenous neural stem cells after spinal cord transection.XiuYing Teng DeSheng Wang XiaoMei Zhang ZengJiao Lai HaiXia Jiang JianLi Wu Huan Qi Qian Yu Shun Yao WenBo Song et al. 2012Chinese Science Bulletin2012,57,7:2
16Performance of CO_2 absorption in a diameter-varying spray tower显示文摘The application of spray towers for CO_2 capture is a development trend in recent years. However, most of the previous jobs were conducted in a cylindrical tower by using a single spray nozzle, whose configuration and performance is not good enough for industrial application. To solve this problem, the present work proposed a diameter-varying spray tower and a new spray mode of dual-nozzle opposed impinging spray to enhance the heat and mass transfer of CO_2 absorption process. Experiments were performed to investigate the mass transfer performance (in terms of the CO_ 2 removal rate (η) and the overall mass transfer coefficient (K_Ga_e)) of the improved spray tower under various operating conditions. Experimental results showed that the liquid to gas ratio and mole ratio of MEA to CO_2 are major factors, which affect the absorption performance and the maximums of η and (K_Ga_e that are 94.0% and 0.574 kmol·m^(-3)·h^(-1)·kP a^(-1), respectively, under the experimental conditions. Furthermore, new correlations to predict the mass transfer coefficient of the proposed spray tower are developed in various CO_2 concentrations with a Pearson Correlation Coefficient over 90%.Xiaomei Wu Yunsong Yu Zhen Qin Zaoxiao Zhang 2017Chinese Journal of Chemical Engineering2017,25,8:2
17Maximal methane potential of different animal manures collected in northwest region of China显示文摘Maximum methane potential(B0)is an important parameter used in assessing suitability of a substrate for biogas production.This study examined maximum methane potential of different manures generated from three major Chinese livestock,namely chicken,hog and cattle,and evaluated the important factors that affect the maximum methane potential of a substrate.The livestock manures collected from the local farms were incubated under a thermophilic anaerobic condition(55℃).The results showed that the maximum methane potential(B0)of cattle,hog and chicken manures were 292.0 mL/g VS,272.0 mL/g VS and 266.4 mL/g VS,respectively.The B0 value decreases with increasing contents of crude protein and crude fat,while increases with increasing the contents of carbohydrates and crude fiber in manures.The content of NH4+-N in chicken manure was significantly higher during the digestion period,reached as high as 1962.5 mg/L by the end of incubation period.Heavy metals of Cu and Zn in the manure also affect the B0.Empirical relationships that describe the B0 decrease in response to increase of Zn and Cu contents in manure were developed and used as a simple tool to assess the effects of these metals on the B0.It was concluded that the protein,Cu and Zn contents of manure are most important chemical compositions that negatively affect maximum methane potential.Based on the three experimental manures,the maximum methane potential was limited by either ammonium content or Cu and Zn content in the manure.For a commercial biogas production facility using these manures as main feedstock,one should consider to add co-substrate or co-substrates to reduce concentration of these chemicals to maximize biogas production.Chen Fen Yu Gao Li Wei Liu Fenwu Zhang Wuping Bu Yushan Li Xiaomei 2017International Journal of Agricultural and Biological Engineering2017,10,1:2
18Nanobody-based chimeric antigen receptor T cells designed by CRISPR/Cas9 technology for solid tumor immunotherapy显示文摘Chimeric antigen receptor-based T-cell immunotherapy is a promising strategy for treatment of hematological malignant tumors;however,its efficacy towards solid cancer remains challenging.We therefore focused on developing nanobody-based CAR-T cells that treat the solid tumor.CD105 expression is upregulated on neoangiogenic endothelial and cancer cells.CD105 has been developed as a drug target.Here we show the generation of a CD105-specific nanobody,an anti-human CD105 CAR-T cells,by inserting the sequences for anti-CD105 nanobody-linked standard cassette genes into AAVS1 site using CRISPR/Cas9 technology.Co-culture with CD105+target cells led to the activation of anti-CD105 CAR-T cells that displayed the typically activated cytotoxic T-cell characters,ability to proliferate,the production of pro-inflammatory cytokines,and the specific killing efficacy against CD105+target cells in vitro.The in vivo treatment with anti-CD105 CAR-T cells significantly inhibited the growth of implanted CD105+tumors,reduced tumor weight,and prolonged the survival time of tumor-bearing NOD/SCID mice.Nanobody-based CAR-T cells can therefore function as an antitumor agent in human tumor xenograft models.Our findings determined that the strategy of nanobody-based CAR-T cells engineered by CRISPR/Cas9 system has a certain potential to treat solid tumor through targeting CD105 antigen.Fengzhen Mo Siliang Duan Xiaobing Jiang Xiaomei Yang Xiaoqiong Hou Wei Shi Cueva Jumbo Juan Carlos Aiqun Liu Shihua Yin Wu Wang Hua Yao Zihang Yu Zhuoran Tang Shenxia Xie Ziqiang Ding Xinyue Zhao Bruce D.Hammock Xiaoling Lu 2021Signal Transduction and Targeted Therapy2021,6,3:2
19Photomechanical meta-molecule array for real-time terahertz imaging显示文摘Real-time terahertz(THz)imaging offers remarkable application possibilities,especially in the security and medical fields.However,most THz detectors work with scanners,and a long image acquisition time is required.Some thermal detectors can achieve realtime imaging by using a focal plane array but have the drawbacks of low sensitivity due to a lack of suitable absorbing materials.In this study,we propose a novel photomechanical meta-molecule array by conveniently assembling THz meta-atom absorbers and bi-material cantilevers together,which can couple THz radiation to a mechanical deflection of the meta-molecules with high efficiency.By optically reading out the mechanical deflections of all of the meta-molecules simultaneously,real-time THz imaging can be achieved.A polyimide sacrificial layer technique was developed to fabricate the device on a glass wafer,which facilitates the transmission of a readout light while the THz wave radiates onto the meta-molecule array directly from the front side.THz images and video of various objects as well as infrared images of the human body were captured successfully with the fabricated metamolecule array.The proposed photomechanical device holds promise in applications in single and broadband THz as well as infrared imaging.Yongzheng Wen Delin Jia Wei Ma Yun Feng Ming Liu Liquan Dong Yuejin Zhao Xiaomei Yu 2017Microsystems & Nanoengineering2017,3,1:2
20Molecular characteristics of segment B of seven very virulent infectious bursal disease viruses isolated in china显示文摘Fei Yu Xiaole Qi Yanqing Yuwen Yongqiang Wang Honglei Gao Yulong Gao Litin Qin Xiaomei Wang 2010Virus Genes2010,,2:1
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