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1Contrasting trends of PM2.5 and surface-ozone concentrations in China from 2013 to 2017显示文摘Although much attention has been paid to investigating and controlling air pollution in China,the trends of air-pollutant concentrations on a national scale have remained unclear.Here,we quantitatively investigated the variation of air pollutants in China using long-term comprehensive data sets from 2013 to 2017,during which Chinese government made major efforts to reduce anthropogenic emission in polluted regions.Our results show a significant decreasing trend in the PM2.5 concentration in heavily polluted regions of eastern China,with an annual decrease of〜7%compared with measurements in 2013.The measured decreased concentrations of SO2>NO2 and CO(a proxy for anthropogenic volatile organic compounds)could explain a large fraction of the decreased PM2.5 concentrations in different regions.As a consequence;the heavily polluted days decreased significantly in corresponding regions.Concentrations of organic aerosol;nitrate;sulfate,ammonium and chloride measured in urban Beijing revealed a remarkable reduction from 2013 to 2017;connecting the decreases in aerosol precursors with corresponding chemical components closely.However;surface-ozone concentrations showed increasing trends in most urban stations from 2013 to 2017;which indicates stronger photochemical pollution.The boundary-layer height in capital c让ies of eastern China showed no significant trends over the Beijing-Tianjin-Hebei,Yangtze River Delta and Pearl River Delta regions from 2013 to 2017;which confirmed the reduction in anthropogenic emissions.Our results demonstrated that the Chinese government was successful in the reduction of particulate matter in urban areas from 2013 to 2017,although the ozone concentration has increased significantly;suggesting a more complex mechanism of improving Chinese air quality in the future.Yonghong Wang Wenkang Gao Shuai Wang Tao Song Zhengyu Gong Dongsheng Ji Lili Wang Zirui Liu Guiqian Tang Yanfeng Huo Shili Tian Jiayun Li Mingge Li Yuan Yang Biwu Chu Tuukka Petaja Veli-Matti Kerminen Hong He Jiming Hao Markku Kulmala Yuesi Wang Yuanhang Zhang 2020National Science Review2020,7,8:51
2Trends in particulate matter and its chemical compositions in China from 2013–2017显示文摘Accurate determination of the atmospheric particulate matter mass concentration and chemical composition is helpful in exploring the causes and sources of atmospheric enthalpy pollution and in evaluating the rationality of environmental air quality control strategies.Based on the sampling and chemical composition data of PM2.5 in different key regions of China in the CARE-China observation network,this research analyzes the environmental air quality data released by the China National Environmental Monitoring Centre during the studied period to determine the changes in the particulate matter mass concentration in key regions and the evolution of the corresponding chemical compositions during the implementation of the Action Plan for Prevention and Control of Air Pollution from 2013-2017.The results show the following.(1)The particulate matter mass concentration in China showed a significant downward trend;however,the PM2.5 annual mass concentration in 64%of cities exceeds the New Chinese Ambient Air Quality Standard(CAAQS)GradeⅡ(GB3095-2012).The region to the east of the Taihang Mountains,the Fenhe and Weihe River Plain and the Urumqi-Changji regions in Xinjiang,all have PM2.5 concentration loading that is still high,and heavy haze pollution occurred frequently in the autumn and winter.(2)During the heavy pollution in the autumn and winter,the concentrations of sulfate and organic components decreased significantly.The mean SO42-concentration in PM2.5 decreased by 76%,12%,81%and 38%in Beijing-Tianjin-Hebei(BTH),the Pearl River Delta(PRD),the Sichuan-Chongqing region(SC)and the Fenhe and Weihe River Plain,respectively.The mean organic matter(OM)concentration decreased by 70%,44%,48%and 31%,respectively,and the mean concentration of NH4+decreased by 68%,1.6%,38%and 25%,respectively.The mean elemental carbon(EC)concentration decreased by 84%and 20%in BTH and SC,respectively,and it increased by 61%and 11%in the PRD and Fenhe and Weihe River Plain,respectively.The mean concentration of mineral and unresolved chemical components(MI)dropped by 70%,24%and 13%in BTH,the PRD and the Fenhe and Weihe River Plain,respectively.The change in the PM2.5 chemical composition is consistent with the decrease of the PM2.5mass concentration.(3)In 2015,the mean OM concentration contributions to fine particles and coarse particles were 13-46%and 46-57%,respectively,and the mean MI concentration contributions to fine particles and coarse and particles were 31-60%and 39-73%,respectively;these values are lower than the 2013 values from the key regions,which is the most important factor behind the decrease of the particulate matter mass concentration.From 2013 to 2015,among the chemical components of different particle size fractions,the peak value of the coarse particle size fraction decreased significantly,and the fine particle size fractions of SO42-,NO3-,and NH4+decreased with the decrease of the particulate matter mass concentration in different particle size fractions.The fine-particle size peaks of SO42-,NO3-and NH4+shifted from 0.65-1.1μm to the finer size range of0.43-0.65μm during the same time frame.Yuesi WANG Wenjie LI Wenkang GAO Zirui LIU Shili TIAN Rongrong SHEN Dongsheng JI Shuai WANG Lili WANG Guiqian TANG Tao SONG Mengtian CHENG Gehui WANG Zhengyu GONG Jiming HAO Yuanhang ZHANG 2019Science China Earth Sciences2019,62,12:23
3Changing Proportions of HIV-1 Subtypes and Transmitted Drug Resistance Among Newly Diagnosed HIV/AIDS Individuals—China,2015 and 2018显示文摘Introduction:With the expansion of human immunodeficiency virus(HIV)antiretroviral therapy(ART),HIV drug resistance is becoming more and more serious.This study describes the changing prevalence of HIV-1 subtypes and transmitted drug resistance(TDR)among newly diagnosed individuals in China,2015 and 2018.Methods:A total of 8,980 individuals in 2015 and 2018 from 31 provincial-level administrative divisions(PLADs)were enrolled in this study.Viral RNAs were amplified and sequenced using an in-house polymerase chain reaction(PCR)protocol.The Stanford HIV Drug Resistance Database(HIVdb)was used to predict susceptibility to 12 antiretroviral drugs.Results:The prevalence of TDR was not significantly increased over time.The prevalence of TDR was 3.8%and 4.4%in 2015 and 2018,respectively(P=0.13).The prevalence of CRF55_01B increased from 2.3%in 2015 to 3.9%in 2018(P<0.001).The drug resistance prevalence of nonnucleoside reverse transcriptase inhibitors(NNRTI)increased from 2.4%in 2015 to 3.3%in 2018(P<0.01).The prevalence of E138(P<0.001),H221(P=0.03),and V179(P<0.001)mutations increased from 0.30%,0.09%,and 0.70%in 2015 to 1.10%,0.30%,and 1.70%in 2018,respectively.Conclusions:HIV drug resistance affects the effect of antiretroviral treatment,so the monitoring of HIV TDR should be strengthened to control the transmission of HIV drug resistance.Jingjing Hao Shan Zheng Mengze Gan Aobo Dong Ruihua Kang Miaomiao Li Shuai Zhao Jing Hu Chang Song Lingjie Liao Yi Feng Yiming Shao Yuhua Ruan Hui Xing 2021China CDC weekly2021,3,53:13
4Contamination of Phthalate Esters in Vegetable Agriculture and Human Cumulative Risk Assessment显示文摘Phthalate esters(PAEs), which can disturb human endocrine system, have been widely detected in vegetable greenhouse agriculture in China. To investigate the effects of environmental factors on PAEs in soils, pollution sources were identified, and the cumulative risks of PAEs to humans through vegetables in the diet were evaluated in this study. Ninety-eight vegetable samples were collected from 10 markets along with 128 vegetable and 111 soil samples from agricultural greenhouses and open field. All soil and vegetable samples were contaminated with PAEs, and the total concentrations of the 5 PAEs, including dimethyl phthalate(DMP), diethyl phthalate(DEP), di-iso-butyl phthalate(DiBP), di-n-butyl phthalate(DnBP), and di-2-ethylhexyl phthalate(DEHP), were in the ranges of 0.26–2.53 mg kg^(-1) for soils and 0.95–8.09 mg kg^(-1) for vegetables. Three components extracted from principle component analysis could explain 51.2%, 19.8%, and 15.3% of the total variance of the 5 PAEs in soils, which may represent three major sources of PAEs, i.e., wastewater irrigation, application of fertilizers and pesticides, and plastic film. Long-term greenhouse cultivation could accumulate DEHP in soils, and a higher soil Fe Ox content reduced the Dn BP concentration. Based on a survey of vegetables in the diet, the hazard index of PAEs was < 0.15 for individuals in different cities. The exposure of PAEs through vegetable intake was higher than the total exposure from other food stuffs, inhalation, and dermal absorption. More attention should be given to controlling PAEs in greenhouse vegetables.CHEN Ning SHUAI Wenjuan HAO Xinmei ZHANG Huichun ZHOU Dongmei GAO Juan 2017Pedosphere2017,27,3:12
5WARRANTY STRATEGY IN A SUPPLY CHAIN WHEN TWO RETAILER'S EXTENDED WARRANTIES BUNDLED WITH THE PRODUCTS显示文摘We in this paper examine warranty strategy in a two-stage supply chain consisting of a manufacturer and two competing retailers.The manufacturer produces two substitute products and markets them through the two retailers to a group of consumers,respectively.For each type of products,the manufacturer's base warranty and a retailer's extended warranty are bundled with the product.We use game theoretic models to explore the interactions between the two types of warranties and the competition between the retailers.For this purpose,two scenarios are considered:no retailer and both the two retailers providing the extended warranties,respectively.In each scenario,the manufacturer's base warranties are assumed to be offered.Our results show that when the retailers offer their extended warranties,the manufacturer has no incentive to offer the base warranties;otherwise,the manufacturer has to provide the base warranties.The competition between retailers in terms of the product substitutability has no impact on warranty decisions,but affects all players' profits in the supply chain.The manufacturer can provide a longer warranty length and higher customer welfare to a customer than the retailers do,if it is more efficient than the retailers in warranty cost-efficiency,and vice versa.Yiwen Bian Shuai Yan Wei Zhang Hao Xu 2015Journal of Systems Science and Systems Engineering2015,24,3:10
6Accessory Breast Cancer Occurring Concurrently with Bilateral Primary Invasive Breast Carcinomas:A Report of Two Cases and Literature Review显示文摘The development of accessory breast tissue,which is found anywhere along the milk line,is attributed to the failure of milk line remnants to regress during embryogenesis.Primary tumors may arise from any ectopic breast tissue.Accessory breast cancer occurring concurrently with primary invasive breast cancer is extremely rare.Two such cases were reported in this article.One was a 43-year-old Chinese female who exhibited bilateral breast cancer(invasive ductal carcinoma,not otherwise specified,IDC-NOS) and an accessory breast carcinoma(IDC-NOS) incidentally identified in her left axilla.The ectopic breast tissue in her right axilla presented with adenosis.The patient was surgically treated,followed by postoperative docetaxel epirubicin(TE) chemotherapy.The second case was a 53-year-old Chinese female with bilateral breast cancer(apocrine carcinoma) accompanied by an accessory breast carcinoma(IDC-NOS) in her right axilla that was also incidentally identified.The patient was surgically treated after three doses of cyclophosphamide epirubicin docetaxel(CET) neoadjuvant chemotherapy,followed by adjuvant chemotherapy of the same regimen.Jin-yan Hao Cui-cui Yang Fang-fang Liu Yi-ling Yang Shuai Li Wei-dong Li Ya-qing Li Rong-gang Lang Yu Fan Estifanos Paulos Xin-min Zhang Li Fu 2012Clinical oncology and cancer resexreh2012,9,3:8
7Identification and fine mapping of two blast resistance genes in rice cultivar 93-11显示文摘Rice blast, caused by Magnaporthe oryzae, is a major disease of rice almost worldwide. The Chinese indica cultivar 93-11 is resistant to numerous isolates of the blast fungus in China, and can be used as broad-spectrum resistance resource, particularly in japonica rice breeding programs. In this study, we identified and mapped two blast resistance genes, Pi60(t) and Pi61(t), in cv. 93-11 using F2 and F3 populations derived from a cross between the susceptible cv. Lijiangxintuanheigu(LTH) and resistant cv. 93-11 and inoculated with M. oryzae isolates from different geographic origins. Pi60(t) was delimited to a 274 kb region on the short arm of chromosome 11, flanked by InDel markers K1-4 and E12 and cosegregated with InDel markers B1 and Y10. Pi61(t) was mapped to a 200 kb region on the short arm(near the centromere) of chromosome 12, flanked by InDel markers M2 and S29 and cosegregating with InDel marker M9. In the 274 kb region of Pi60(t), 93-11 contains six NBS-LRR genes including the two Pia/ PiCO39 alleles(BGIOSGA034263 and BGIOSGA035032) which are quite close to the two Pia/ PiCO39 alleles(SasRGA4 and SasRGA5) in Sasanishiki and CO39, with only nine amino acids differing in the protein sequences of BGIOSGA035032 and SasRGA5. In the 200 kb region of Pi61(t), 93-11 contains four NBS-LRR genes, all of which show high identities in protein sequence with their corresponding NBS-LRR alleles in susceptible cv. Nipponbare. Comparison of the response spectra and physical positions between the target genes and other R genes in the same chromosome regions indicated that Pi60(t) could be Pia/PiCO39 or its allele, whereas Pi61(t) appears to be different from Pita, Pita-2, Pi19(t), Pi39(t) and Pi42(t) in the same R gene cluster. DNA markers tightly linked to Pi60(t) and Pi61(t) will enable marker-assisted breeding and map-based cloning.Cailin Lei Kun Hao Yilong Yang Jian Ma Shuai Wang Jiulin Wang Zhijun Cheng Shasha Zhao Xin Zhang Xiuping Guo Chunming Wang Jianmin Wan 2013The Crop Journal2013,1,1:8
8Diffusion bonding of AlCoCrFeNi2.1 eutectic high entropy alloy to TiAl alloy显示文摘High entropy alloys have special microstructure and remarkable properties.To explore their potential engineering application in high temperature structures,the microstructure evolution of bonding interface,the elemental diffusion behavior and mechanical property of the diffusion bonded joint between AlCoCrFeNi2.1eutectic high entropy alloy(EHEA)and TiAl alloy were investigated.Four reaction layers(rodlike B2 phase,Al(Co,Ni)2Ti,τ3-Al3NiTi2+TiAl,τ3-Al3NiTi2+TiAl+Ti3Al)formed in the diffusion zone near FCC phase of EHEA,but three layers(Al(Co,Ni)2Ti,τ3-Al3Ni Ti2+Ti Al,τ3-Al3Ni Ti2+Ti Al+Ti3Al)formed near B2 phase.Al and Ni controlled the reaction diffusion of EHEA and TiAl alloy,coarsened the acicular precipitated B2 phase and turned Ti Al phase into Al(Co,Ni)2Ti andτ3-Al3NiTi2 phases.All these reaction layers grew in a parabolic manner as a function of bonding temperature.Rodlike B2 phase has the lowest growth activation energy of 125.2 kJ/mol,and the growth activation energy ofτ3-Al3Ni Ti2+TiAl layer near B2 phase is much lower than that near FCC phase.The penetration phenomenon and convex structure formed in the diffusion zone,which resulted in interlocking effect and enhanced the strength of resultant joints.The highest shear strength of 449 MPa was achieved at 950℃.And the brittle fracture generally initiated at the interface between Al(Co,Ni)2Ti andτ3-Al3NiTi2+TiAl layers.Peng Li Shuai Wang Yueqing Xia Xiaohu Hao Honggang Dong 2020Journal of Materials Science & Technology2020,42,10:8
9Accelerated degradation of HAP/PLLA bone scaffold by PGA blending facilitates bioactivity and osteoconductivity显示文摘The incorporation of hydroxyapatite(HAP)into poly-L-lactic acid(PLLA)matrix serving as bone scaffold is expected to exhibit bioactivity and osteoconductivity to those of the living bone.While too low degradation rate of HAP/PLLA scaffold hinders the activity because the embedded HAP in the PLLA matrix is difficult to contact and exchange ions with body fluid.In this study,biodegradable polymer poly(glycolic acid)(PGA)was blended into the HAP/PLLA scaffold fabricated by laser 3D printing to accelerate the degradation.The results indicated that the incorporation of PGA enhanced the degradation rate of scaffold as indicated by the weight loss increasing from 3.3%to 25.0%after immersion for 28 days,owing to the degradation of high hydrophilic PGA and the subsequent accelerated hydrolysis of PLLA chains.Moreover,a lot of pores produced by the degradation of the scaffold promoted the exposure of HAP from the matrix,which not only activated the deposition of bone like apatite on scaffold but also accelerated apatite growth.Cytocompatibility tests exhibited a good osteoblast adhesion,spreading and proliferation,suggesting the scaffold provided a suitable environment for cell cultivation.Furthermore,the scaffold displayed excellent bone defect repair capacity with the formation of abundant new bone tissue and blood vessel tissue,and both ends of defect region were bridged after 8 weeks of implantation.Cijun Shuai Wenjing Yang Pei Feng Shuping Peng Hao Pan 2021Bioactive Materials2021,6,2:8
10Detection of serum IgM and IgG for COVID-19 diagnosis显示文摘Dear Editor,Infection with the novel coronavirus(SARS-CoV-2,which is the virus responsible for the coronavirus disease 2019(COVID-19))was first reported in Wuhan,China on December 31,2019.The outbreak of COVID-19 remains ongoing and was linked to more than 80,000 infected patients and more than 3,000 deaths in China as of March 7,2020(Holshue et al.,2020).Ling Zhong Junlan Chuan Bo Gong Ping Shuai Yu Zhou Yi Zhang Zhilin Jiang Dingding Zhang Xiaoqi Liu Shi Ma Yi Huang He Lin Qingwei Wang Lulin Huang Dan Jiang Fang Hao Juan Tang Chunqi Zheng Hua Yu Zhibin Wang Qi Jiang Tao Zeng Mei Luo Fanwei Zeng Fanxin Zeng Jianghai Liu Junxi Tian Yu Xu Tengxiang Long Kaiju Xu Xingxiang Yang Yuping Liu Yi Shi Li Jiang Zhenglin Yang 2020Science China(Life Sciences)2020,63,5:8
11Effect of Ce on the cleanliness, microstructure and mechanical properties of high strength low alloy steel Q690E in industrial production process显示文摘In order to improve the strength and toughness of Q690 E steel sheets,the effect of rare earth element Ce on the strength and toughness of Q690 E steel was studied by means of transmission electron microscopy,scanning electron microscopy,and metallographic microscope.The results showed that the addition of Ce in steel limited the combination of S with Mn and Ca,transformed Al2O3 inclusion into spherical CeAlO3 inclusion,and modified the precipitate form of some composite inclusions of TiN and sulfide oxides into TiN precipitation alone.The inclusions were spheroidizing.The size of inclusions was decreased from 3–5μm to 1–2μm,and the distribution was dispersed.Ce played a role in purifying molten steel through desulphurization and deoxidization.Meanwhile,the addition of Ce in steel effectively increased the nucleation particles in the liquid phase,improved the nucleation rate,enlarged the equiaxed grain refinement area,and limited the development of columnar crystals.The average grain size of slab decreased from 45.76 to 35.25μm,and the proportion of large grain size(>50μm)decreased from 40.41%to 23.74%.The macrostructural examination of slab was improved from B0.5 to C2.0,which realized the refinement of the solidified structure and reduced the banded structure of hot rolled plate.In addition,due to the inheritance of refined structure in the upstream,the recrystallization of deformed austenite and the growth of grain after recrystallization were restrained,and a refined tempered sorbite structure was obtained.When rare earth element Ce was added,the width of the martensite lath bundle was narrowed from about 500 nm to about 200 nm,which realized a remarkable grain refinement strengthening and toughening effect.Mechanical properties such as tensile,yield,and low-temperature impact toughness were significantly improved.Hao Wang Yan-ping Bao Ming Zhao Min Wang Xiao-ming Yuan Shuai Gao 2019International Journal of Minerals,Metallurgy and Materials2019,26,11:7
12miR-137 inhibits melanoma cell proliferation through downregulation of GLO1显示文摘Late-stage melanoma is refractory to current therapies. MicroRNAs (miRNAs) can modulate many physiological and pathological processes of melanoma. Studies have demonstrated that miR-137 acts as a tumor suppressor by inhibiting the proliferation of melanoma cells through targeting multiple mRNAs. The glyoxalase system member glyoxalase 1 (GLO1) is the principal scavenging enzyme of methylglyoxal (MG), a toxic byproduct of glycolysis. Using 35S in vivo/vitro labelling analysis for dynamic proteomics (SiLAD), we found that miR-137 downregulated the expression of GLO1 in melanoma cells.Bioinformatics analysis predicted that GLO1 is a direct target of miR-137. This was validated by dual luciferase reporter assay.Quantitative RT-PCR (qRT-PCR) and western blot analysis indicated that miR-137 could decrease endogenous GLO1 expression.Furthermore, siRNA targeting of GLO1 mimicked inhibition of melanoma cell proliferation caused by miR-137 overexpression.Re-expression of GLO1 was able to restore miR-137-mediated suppression of melanoma cell proliferation. Therefore, these results suggest that miR-137 inhibits the proliferation of melanoma cells by targeting GLO1.Na Lv Shuai Hao Chonglin Luo Alia Abukiwan Ying Hao Fei Gai Weiwei Huang Lingyun Huang Xueyuan Xiao Stefan B.Eichmüller Dacheng He 2018Science China(Life Sciences)2018,61,5:7
13BTB-BACK-TAZ domain protein MdBT2-mediated MdMYB73 ubiquitination negatively regulates malate accumulation and vacuolar acidification in apple显示文摘As an important primary metabolite,malate plays a key role in regulating osmotic pressure,pH homeostasis,stress tolerance,and fruit quality of apple.The R2R3-MYB transcription factor(TF)MdMYB73 was identified as a protein that plays a critical role in determining malate accumulation and vacuolar acidification by directly regulating the transcription of aluminum-activated malate transporter 9(MdALMT9),vacuolar ATPase subunit A(MdVHA-A),and vacuolar pyrophosphatase 1(MdVHP1)in apple.In addition,the bHLH TF MdCIbHLH1 interacts with MdMYB73 and enhances the transcriptional activity of MdMYB73.Our previous studies demonstrated that the BTB-BACK-TAZ domain protein MdBT2 can degrade MdCIbHLH1 to influence malate accumulation and vacuolar acidification.However,the potential upstream regulators of MdMYB73 are currently unknown.In this study,we found that MdBT2 directly interacts with and degrades MdMYB73 through the ubiquitin/26S proteasome pathway to regulate malate accumulation and vacuolar acidification.A series of functional assays with apple calli and fruit showed that MdBT2 controls malate accumulation and vacuolar acidification in an MdMYB73-dependent manner.Overall,our findings shed light on the mechanism by which the BTB-BACK-TAZ domain protein MdBT2 regulates malate accumulation and vacuolar acidification by targeting MdMYB73 and MdCIbHLH1 for ubiquitination in apple.This information may help guide traditional breeding programs and fruit tree molecular breeding,and lead to improvements in fruit quality and stress tolerance.Quan-Yan Zhang Kai-Di Gu Jia-Hui Wang Jian-Qiang Yu Xiao-Fei Wang Shuai Zhang Chun-Xiang You Da-Gang Hu Yu-Jin Hao 2020Horticulture Research2020,7,1:6
14Flavone Content and Bioactivity of Aqueous-Ethanolic Extracts of Phellinus Fruit Bodies显示文摘The flavone content of aqueous ethanolic extracts of Phellinus fruit bodies obtained from seven different locations was determined.Anti-tumor and antioxidant activities associated with the extracts were investigated in vitro using the Alamar Blue assay and a chemiluminecence-based method,respectively.Extracts of the seven Phellinus samples generated very similar HPLC profiles in qualitative terms although the areas of several peaks varied according to the sample type indicating quantitative differences in the case of some components.All the extracts,especially those of artificially cultivated Phellinus baumii fruit bodies,inhibited L1210 tumor cell proliferation and exhibited superoxide radical scavenging activity although there was no obvious correlation with flavone content.HAO Ruixia ZHOU Shuai YANG Yan XI Junzhe LI Weiyao TANG Qingjiu WANG Chenguang 2008食用菌学报2008,15,2:6
15Feasibility and nutritional impact of laparoscopic assisted tailored subtotal gastrectomy for middle-third gastric cancer显示文摘BACKGROUND Laparoscopic assisted total gastrectomy(LaTG)is associated with reduced nutritional status,and the procedure is not easily carried out without extensive expertise.A small remnant stomach after near-total gastrectomy confers no significant nutritional benefits over total gastrectomy.In this study,we developed a modified laparoscopic subtotal gastrectomy procedure,termed laparoscopicassisted tailored subtotal gastrectomy(LaTSG).AIM To evaluate the feasibility and nutritional impact of LaTSG compared to those of LaTG in patients with advanced middle-third gastric cancer(GC).METHODS We retrospectively analyzed surgical and oncological outcomes and postoperative nutritional status in 92 consecutive patients with middle-third GC who underwent radical laparoscopic gastrectomy at Department of Pancreatic Stomach Surgery,National Cancer Center/Cancer Hospital,Chinese Academy of Medical Sciences,and Peking Union Medical College between 2013 and 2017.Of these 92 patients,47 underwent LaTSG(LaTSG group),and the remaining underwent LaTG(LaTG group).RESULTS Operation time(210±49.8 min vs 208±50.0 min,P>0.05)and intraoperative blood loss(152.3±166.1 mL vs 188.9±167.8 mL,P>0.05)were similar between the groups.The incidence of postoperative morbidities was lower in the LaTSG group than in the LaTG group(4.2%vs 17.8%,P<0.05).Postoperatively,nutritional indices did not significantly differ,until postoperative 12 mo.Albumin,prealbumin,total protein,hemoglobin levels,and red blood cell counts were significantly higher in the LaTSG group than in the LaTG group(P<0.05).No significant differences in Fe or C-reaction protein levels were found between the two groups.Endoscopic examination demonstrated that reflux oesophagitis was more common in the LaTG group(0%vs 11.1%,P<0.05).Kaplan–Meier analysis showed a significant improvement in the overall survival(OS)and disease free survival(DFS)in the LaTSG group.Multivariate analysis showed that LaTSG was an independent prognostic factor for OS(P=0.048)but not for DFS(P=0.054).Subgroup analysis showed that compared to LaTG,LaTSG improved the survival of patients with stage III cancers,but not for other stages.CONCLUSION For advanced GC involving the middle third stomach,LaTSG can be a good option with reduced morbidity and favorable nutritional status and oncological outcomes.Hao Liu Peng Jin Fu-Hai Ma Shuai Ma Yi-Bin Xie Yang Li Wei-Kun Li Wen-Zhe Kang Yan-Tao Tian 2020World Journal of Gastroenterology2020,26,43:6
16Incidence and clinical characteristics of inflammatory bowel disease in a developed region of G uangdong P rovince, C hina: A prospective population‐based study显示文摘Zhirong Zeng Zhenhua Zhu Yuyu Yang Weishan Ruan Xiabiao Peng Yuhuan Su Lin Peng Jinquan Chen Quan Yin Chao Zhao Haihua Zhou Shuai Yuan Yuantao Hao Jiaming Qian Siew Chien Ng Minhu Chen Pinjin Hu 2013J Gastroenterol Hepatol2013,,7:5
17Distinct regulatory mechanism of immunoglobulin gene transcription in epithelial cancer cells显示文摘The restriction of immunoglobulin(Ig)expression to B lymphocytes is well established.However,several reports have confirmed that the Ig gene can be expressed in many non-B cancer cells and/or some normal cells.Our aim is to determine whether the Ig gene promoter can be activated in non-B cancer cells and to identify the regulatory mechanism for Ig gene expression.Our results show that the Ig promoter of VH4-59 was activated in several non-B cancer cell lines.Moreover,two novel positive regulatory elements,an enhancer-like element at 2800 to 2610 bp and a copromoter-like element at 2610 to 2300 bp,were identified in two epithelial cancer cell lines,HeLa S3 and HT-29.The octamer element(59-ATGCAAAT-39)located in the Ig promoter,a crucial element for B-cell-derived Ig gene transcription,was also very important for non-B-cell-derived Ig gene transcription.More importantly,we confirmed that octamer-related protein-1(Oct-1),but not Oct-2,was a crucial transcriptional factor for Ig gene transcription due to its ability to bind to the octamer element of the Ig promoter in epithelial cancer cells.These results suggested the presence of a distinct regulatory mechanism for Ig gene expression in non-B cancer cells.Xiaohui Zhu Lina Wu Li Zhang Peng Hao Shuai Zhang Jing Huang Jie Zheng Yinan Liu Wenjun Li Yingmei Zhang Chunyan Zhou Youhui Zhang C Cameron Yin Xiaoyan Qiu 2010Cellular & Molecular Immunology2010,7,4:5
18The heterogeneity of islet autoantibodies and the progression of islet failure in type 1 diabetic patients显示文摘Type 1 diabetes mellitus is heterogeneous in many facets. The patients suffered from type 1 diabetes present several levels of islet function as well as variable number and type of islet-specific autoantibodies. This study was to investigate prevalence and heterogeneity of the islet autoantibodies and clinical phenotypes of type 1 diabetes mellitus; and also discussed the process of islet failure and its risk factors in Chinese type 1 diabetic patients. A total of 1,291 type 1 diabetic patients were enrolled in this study. Demographic information was collected. Laboratory tests including mixed-meal tolerance test, human leukocyte antigen alleles, hemoglobin A1 c, lipids, thyroid function and islet autoantibodies were conducted. The frequency of islet-specific autoantibody in newly diagnosed T1 DM patients(duration shorter than half year) was 73% in East China. According to binary logistic regressions, autoantibody positivity, longer duration and lower Body Mass Index were the risk factors of islet failure. As the disease developed, autoantibodies against glutamic acid decarboxylase declined as well as the other two autoantibodies against zinc transporter 8 and islet antigen 2. The decrease of autoantibodies was positively correlated with aggressive beta cell destruction. Autoantibodies can facilitate the identification of classic T1 DM from other subtypes and predict the progression of islet failure. As there were obvious heterogeneity in autoantibodies and clinical manifestation in different phenotypes of the disease, we should take more factors into consideration when identifying type 1 diabetes mellitus.Jin Liu Lingling Bian Li Ji Yang Chen Heng Chen Yong Gu Bingqin Ma Wei Gu Xinyu Xu Yun Shi Jian Wang Dalong Zhu Zilin Sun Jianhua Ma Hui Jin Xing Shi Heng Miao Bing Xin Yan Zhu Zhenwen Zhang Ruifang Bu Lan Xu Guangde Shi Wei Tang Wei Li Dongmei Zhou Jun Liang Xingbo Cheng Bimin Shi Jixiang Dong Ji Hu Chen Fang Shao Zhong Weinan Yu Weiping Lu Chenguang Wu Li Qian Jiancheng Yu Jialin Gao Xiaoqiang Fei Qingqing Zhang Xueqin Wang Shiwei Cui Jinluo Cheng Ning Xu Guofeng Wang Guoqing Han Chunrong Xu Yun Xie Minmin An Wei Zhang Zhixiao Wang Yun Cai Qi Fu Yu Fu Shuai Zheng Fan Yang Qingfang Hu Hao Dai Yu Jin Zheng Zhang Kuanfeng Xu Yifan Li Jie Shen Hongwen Zhou Wei He Xuqin Zheng Xiao Han Liping Yu Jinxiong She Mei Zhang Tao Yang 2016Science China(Life Sciences)2016,59,9:5
19Clinical Experience in Treatment of Alzheimer’s Disease with Jiannao Yizhi Formula (健脑益智方) and Routine Western Medicine显示文摘Objective:To investigate the long-term therapeutic effects of the Chinese medicine Jiannao Yizhi Formula(健脑益智方,JYF)in the treatment of Alzheimer’s disease(AD).Methods:Sixty mild-to-moderate AD participants were recruited and randomly allocated to the treatment(30 with JYF)and the control groups(30 with donepezil)for 6 months with the random numbers.The primary outcomes were scores of Alzheimer’s Disease Rating Scale-Cognitive(ADAS-Cog)and Chinese Medicine Symptom Scale(CM-SS).The secondary outcomes were scores of Mini Mental State Examination(MMSE),Montreal Cognitive Assessment(MoCA),and Activities of Daily Living(ADL).Safety assessments were conducted at baseline and the 6 th month of treatment.Serum levels of acetylcholine(Ach),amyloid-β protein 42(Aβ42),and the microtubule-associated protein tau(Tau)were also determined by enzyme-liked immunosorbent assay.Results:Fifty-one participants were included in the final analyses(JYF n=27;donepezil n=24).Compared with baseline,both JYF and donepezil increased the MoCA and MMSE scores and decreased the ADAS-Cog and CM-SS scores(P<0.05 or P<0.01).Both drugs increased the serum levels of Ach and decreased the serum levels of Aβ42 and Tau(all P<0.05).There was no significant difference in these variables between the two groups,which showed that JYF was not inferior to donepezil.No obviously significant changes were observed in the ADL.No severe adverse events were observed in both groups.Conclusion:The effect and safety of JYF for the treatment of AD were not inferior to those of donepezil.WANG Hui-chan LIU Nan-yang ZHANG Shuai YANG Yang WANG Zhi-Yong WEI Yun LIU Jian-Gang PEI Hui LI Hao 2020Chinese Journal of Integrative Medicine2020,26,3:5
20Dry reforming of methane by microsecond pulsed dielectric barrier discharge plasma:Optimizing the reactor structures显示文摘Dry reforming of CH4 process can convert greenhouse gases into high-value-added fuels and chemicals with its broad application prospects in environmental protection and renewable energy.Non-thermal plasma is considered an effective alternative method because it can activate CH4 and CO_(2)under low temperature and atmospheric pressure.This paper is aimed to optimize the plasma-assisted dry reforming of CH4 process in a unipolar microsecond pulsed coaxial dielectric barrier discharge by inves-tigating the effects of reactor structures.The results show that the conversions of re-actants and the yields of syngas were significantly affected by the reactor structures.Specifically,a multi-stage or foil external electrode and negative polar discharge could promote CH4 and CO_(2)conversions,gas product yields,and energy conversion efficiencies.For different electrodes,the maximal conversions of CH4 and CO_(2)were 20.4%and 14.1%,with an energy conversion efficiency of 4.4%under our experimental conditions.Higher conversions,yields,and energy conversion efficiencies were obtained with lower power input when applying heat insulation measures.CH4 conversion was promoted to 27.9%with a moderate energy conversion efficiency of 3.8%,but the conversion of CO_(2)was only 12%when packing materials into the reactor.The results can provide specific guidance for designing plasma or plasma-catalytic dry reforming reactor.Shuai Zhang Yuan Gao Hao Sun Zhe Fan Tao Shao 2022High Voltage2022,7,4:5
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