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1Prevalence, risk factors, clinical course, and outcome of acute kidney injury in Chinese intensive care units: a prospective cohort study显示文摘WEN Ying JIANG Li XU Yuan QIAN Chuan-yun LI Shu-sheng QIN Tie-he CHEN Er-zhen LIN Jian-dong AI Yu- hang WU Da-wei WANG Yu-shan SUN Ren-hua HU Zhen-jie CAO Xiang-yuan ZHOU Fa-chun HE Zhen-yang ZHOU Li-hua AN You-zhong KANG Yan MA Xiao-chun YU Xiang-you ZHAO Ming-yan XI Xiu-ming DU Bin 2013Chinese Medical Journal2013,,23:40
2Andrographolide sulfonate ameliorates lipopolysaccharide-induced acute lung injury in mice by down-regulating MAPK and NF-κB pathways显示文摘Acute lung injury(ALI) or acute respiratory distress syndrome(ARDS) is a severe, lifethreatening medical condition characterized by widespread inflammation in the lungs, and is a significant source of morbidity and mortality in the patient population. New therapies for the treatment of ALI are desperately needed. In the present study, we examined the effect of andrographolide sulfonate, a water-soluble form of andrographolide(trade name: Xi-Yan-Ping Injection), on lipopolysaccharide(LPS)-induced ALI and inflammation. Andrographolide sulfonate was administered by intraperitoneal injection to mice with LPS-induced ALI. LPS-induced airway inflammatory cell recruitment and lung histological alterations were significantly ameliorated by andrographolide sulfonate. Protein levels of pro-inflammatory cytokines in bronchoalveolar lavage fluid(BALF) and serum were reduced by andrographolide sulfonate administration. m RNA levels of pro-inflammatory cytokines in lung tissue were also suppressed. Moreover, andrographolide sulfonate markedly suppressed the activation of mitogen-activated protein kinase(MAPK) as well as p65 subunit of nuclear factor-κB(NF-κB). In summary, these results suggest that andrographolide sulfonate ameliorated LPS-induced ALI in mice by inhibiting NF-κB and MAPK-mediated inflammatory responses. Our study shows that water-soluble andrographolide sulfonate may represent a new therapeutic approach for treating inflammatory lung disorders.Shuang Peng Nan Hang Wen Liu Wenjie Guo Chunhong Jiang Xiaoling Yang Qiang Xu Yang Sun 2016Acta Pharmaceutica Sinica B2016,6,3:38
3Anti-SARS-CoV-2 activities in vitro of Shuanghuanglian preparations and bioactive ingredients显示文摘Human infection with severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)causes coronavirus disease 2019(COVID-19)and there is no cure currently.The 3CL protease(3CLpro)is a highly conserved protease which is indispensable for CoVs replication,and is a promising target for development of broad-spectrum antiviral drugs.In this study we investigated the anti-SARS-CoV-2 potential of Shuanghuanglian preparation,a Chinese traditional patent medicine with a long history for treating respiratory tract infection in China.We showed that either the oral liquid of Shuanghuanglian,the lyophilized powder of Shuanghuanglian for injection or their bioactive components dose-dependently inhibited SARS-CoV-23CLpro as well as the replication of SARS-CoV-2 in Vero E6 cells.Baicalin and baicalein,two ingredients of Shuanghuanglian,were characterized as the first noncovalent,nonpeptidomimetic inhibitors of SARS-CoV-23CLpro and exhibited potent antiviral activities in a cell-based system.Remarkably,the binding mode of baicalein with SARS-CoV-23CLpro determined by X-ray protein crystallography was distinctly different from those of known 3CLpro inhibitors.Baicalein was productively ensconced in the core of the substrate-binding pocket by interacting with two catalytic residues,the crucial S1/S2 subsites and the oxyanion loop,acting as a“shield”in front of the catalytic dyad to effectively prevent substrate access to the catalytic dyad within the active site.Overall,this study provides an example for exploring the in vitro potency of Chinese traditional patent medicines and effectively identifying bioactive ingredients toward a specific target,and gains evidence supporting the in vivo studies of Shuanghuanglian oral liquid as well as two natural products for COVID-19 treatment.Hai-xia Su Sheng Yao Wen-feng Zhao Min-jun Li Jia Liu Wei-juan Shang Hang Xie Chang-qiang Ke Hang-chen Hu Mei-na Gao Kun-qian Yu Hong Liu Jing-shan Shen Wei Tang Lei-ke Zhang Geng-fu Xiao Li Ni Dao-wen Wang Jian-ping Zuo Hua-liang Jiang Fang Bai Yan Wu Yang Ye Ye-chun Xu 2020Acta Pharmacologica Sinica2020,41,9:32
4Photo-curing 3D printing technique and its challenges显示文摘In recent ten years,3D printing technology has been developed rapidly.As an advanced technology,3D printing has been used to fabricate complex and high-precision objects in many fields.3D printing has several technologies.Among these technologies,photo-curing 3D printing was the earliest and most mature technology.In 1988,the first 3D printing machine which was based on photo-curing and called Stereo lithography Appearance(SLA)technology was produced by 3D system Corp.After 30 years of development,many new technologies based on photocuring mechanism emerged.Based on the different principle of pattern formation and character of printing technology,numerous photocuring 3D printing techniques,such as SLA,DLP,LCD,CLIP,MJP,twophoton 3D printing,holographic 3D printing and so on,have been developed.Photo-curing 3D printing has many advantages,such as high precision,smooth surface of printing objects,rapid printing speed and so on.Here,we would introduce five industrial photocuring 3D printing technologies,which are SLA,DLP,LCD,CLIP and MJP.The characters of the materials and the progress of the application of the technique in the biomedical field is also overviewed.At last,the difficulties and challenges of photo-curing 3D printing are also discussed.Haoyuan Quan Ting Zhang Hang Xu Shen Luo Jun Nie Xiaoqun Zhu 2020Bioactive Materials2020,5,1:33
5Identification of a natural mutant of HBV X protein truncated 27 amino acids at the COOH terminal and its effect on liver cell proliferation显示文摘目的:识别肝炎 B ( HBV ) X ( HBx )基因的异种并且在肝房间 proliferation.Methods 上调查自然异种的效果:我们从 188 重量的单位识别了 HBx 基因的自然异种一中国病人的 48 纸巾由 PCR 与 HBV 感染了的and , HBx 基因的异种的鉴定上的 respectively.Based ,我们克隆异种的碎片进 pcDNA3 向量。异种的生物活动是 investigated.Results : 我们从 3 重量的单位从 382 ~ 401 基础对与删除识别了 HBx 基因的自然异种一 out of 188 个病人,它在 COOH 终端从第 128 氨基酸导致了 HBx 蛋白质的表达式删除。有从在 COOH 终端的 382 基础对的删除的类似的异种从 48 肝细胞癌纸巾从染色体的 5 个案例被识别。关于异种的生物活动,我们发现短暂 transfection 没有通过到 induce apoptosis,但是支持了人的肝的增长的 HBx 蛋白质的异种由稳定的 transfection 使 L-02 房间不朽,与野类型的 HBx 蛋白质相比。数据证明变异的 stably-trans-fected L-02-X-Sera 房间和碎片 stably-transfected L-02-XA127 房间的增长被 BrdU 加入试金提高,流动血细胞计数 analysis.Lu-ciferase 记者基因试金证明颠倒 transcriptase 是起来的 NF-KB , survivin ,和人的 telomerase 的 transcriptional 活动调整了,并且西方的污点分析表明原子抗原( PCNA )是起来的 c-Myc 和增殖的房间的表达式层次在 cells.Conclusion 调整了:我们的调查结果建议自然 HBx 异种在 COOH 终端截断了 27 氨基酸支持房间增长。Hang ZHANG Chang-liang SHAN Nan LI Xuan ZHANG Xue-zhi ZHANG Fu-qing XU Shuai ZHANG Li-yan QIU Li-hong YE Xiao-dong ZHANG 2008Acta Pharmacologica Sinica2008,29,4:28
6Effect of Magnesium on Inclusion Formation in Ti-Killed Steels and Microstructural Evolution in Welding Induced Coarse-Grained Heat Affected Zone显示文摘Effects of Mg on the chemical component and size distribution of Ti-bearing inclusions favored grain refine- ment of the welding induced coarse-grained heat affected zone (CGHAZ),with enhanced impact toughness in Ti-kill- ed steels,which were examined based on experimental observations and thermodynamic calculations.The results in- dicated that the chemical constituents of the inclusions gradually varied from the Ti-O+Ti-Mg-O compound oxide to the Ti-Mg-O+MgO compound oxide and the single-phase MgO,as the Mg content increased from 0.002 3% to 0.006%.A trace addition of Mg (approximately 0.002%) led to the refinement of Ti-bearing inclusions by creating the Ti-Mg-O compound oxide and provided favorable size distribution of the inclusions for acicular ferrite transforma- tion with a high nucleation rate in the CGHAZ,and a high volume fraction of acicular ferrite was obtained in the CGHAZ with enhanced impact toughness.Otherwise,a high content of Mg (approximately 0.006%) produced a single-phase MgO,which was impotent to nucleate an acicular ferrite,and a microstructure comprised of a ferrite side plate and a grain boundary ferrite developed in the CGHAZ.The experimental results were confirmed by ther- modynamic calculations.CHAI Feng YANG Cai-fu SU Hang ZHANG Yong-quan XU Zhou 2009Journal of Iron and Steel Research(International)2009,16,1:22
7Collagen type Ⅱ suppresses articular chondrocyte hypertrophy and osteoarthritis progression by promoting integrin β1-SMAD1 interaction显示文摘Hypertrophic differentiation is not only the terminal process of endochondral ossification in the growth plate but is also an important pathological change in osteoarthritic cartilage.Collagen type II(COL2A1)was previously considered to be only a structural component of the cartilage matrix,but recently,it has been revealed to be an extracellular signaling molecule that can significantly suppress chondrocyte hypertrophy.However,the mechanisms by which COL2A1 regulates hypertrophic differentiation remain unclear.In our study,a Col2a1 p.Gly1170Ser mutant mouse model was constructed,and Col2a1 loss was demonstrated in homozygotes.Loss of Col2a1 was found to accelerate chondrocyte hypertrophy through the bone morphogenetic protein(BMP)-SMAD1 pathway.Upon interacting with COL2A1,integrinβ1(ITGB1),the major receptor for COL2A1,competed with BMP receptors for binding to SMAD1 and then inhibited SMAD1 activation and nuclear import.COL2A1 could also activate ITGB1-induced ERK1/2 phosphorylation and,through ERK1/2-SMAD1 interaction,it further repressed SMAD1 activation,thus inhibiting BMP-SMAD1-mediated chondrocyte hypertrophy.Moreover,COL2A1 expression was downregulated,while chondrocyte hypertrophic markers and BMP-SMAD1 signaling activity were upregulated in degenerative human articular cartilage.Our study reveals novel mechanisms for the inhibition of chondrocyte hypertrophy by COL2A1 and suggests that the degradation and decrease in COL2A1 might initiate and promote osteoarthritis progression.Chengjie Lian Xudong Wang Xianjian Qiu Zizhao Wu Bo Gao Lei Liu Guoyan Liang Hang Zhou Xiaoming Yang Yan Peng Anjing Liang Caixia Xu Dongsheng Huang Peiqiang Su 2019Bone Research2019,7,1:17
8PM_(2.5)-bound polycyclic aromatic hydrocarbons(PAHs) in Beijing:Seasonal variations,sources,and risk assessment显示文摘Polycyclic aromatic hydrocarbons(PAHs) have been of health concern due to its carcinogenesis and mutagenesis. In this study, we aimed to assess the variations, sources, and lifetime excessive cancer risk(ECR) attributable to PAHs bound to ambient particulate matters with aerodynamic diameter less than 2.5 μm(PM_(2.5)) in metropolitan Beijing, China. We collected24-hour integrated PM_(2.5) samples on daily basis between November 2014 and June 2015 across both central heating(cold months) and non-heating(warm months) seasons, and further analyzed the PAH components in these daily PM_(2.5) samples. Our results showed that total concentrations of PM_(2.5)-bound PAHs varied between(88.6 ± 75.4) ng/m^3 in the cold months and(11.0 ± 5.9) ng/m^3 in the warm months. Benzo[a]pyrene(Ba P), the carcinogenic marker of PAHs,averaged at 5.7 and 0.4 ng/m^3 in the cold and warm months, respectively. Source apportionment analyses illustrated that gasoline, biomass burning, diesel, coal combustion and cooking were the major contributors, accounting for 12.9%, 17.8%, 24.7%, 24.3% and 6.4% of PM_(2.5)-bound PAHs, respectively. The BaP equivalent lifetime ECR from inhalation of PM_(2.5)-bound PAHs was 16.2 cases per million habitants. Our results suggested that ambient particulate reduction from energy reconstruction and adaption of clean fuels would result in reductions PM_(2.5)-bound PAHs and its associated cancer risks. However, as only particulate phased PAHs was analyzed in the present study, the concentration of ambient PAHs could be underestimated.Baihuan Feng Lijuan Li Hongbing Xu Tong Wang Rongshan Wu Jie Chen Yi Zhang Shuo Liu Steven Sai Hang Ho Junji Cao Wei Huang 2019Journal of Environmental Sciences2019,31,3:17
9Air route network optimization in fragmented airspace based on cellular automata显示文摘Air route network optimization,one of the essential parts of the airspace planning,is an effective way to optimize airspace resources,increase airspace capacity,and alleviate air traffic congestion.However,little has been done on the optimization of air route network in the fragmented airspace caused by prohibited,restricted,and dangerous areas(PRDs).In this paper,an air route network optimization model is developed with the total operational cost as the objective function while airspace restriction,air route network capacity,and non-straight-line factors(NSLF) are taken as major constraints.A square grid cellular space,Moore neighbors,a fixed boundary,together with a set of rules for solving the route network optimization model are designed based on cellular automata.The empirical traffic of airports with the largest traffic volume in each of the 9 flight information regions in China's Mainland is collected as the origin-destination(OD) airport pair demands.Based on traffic patterns,the model generates 35 air routes which successfully avoids 144 PRDs.Compared with the current air route network structure,the number of nodes decreases by 41.67%,while the total length of flight segments and air routes drop by 32.03% and 5.82% respectively.The NSLF decreases by 5.82% with changes in the total length of the air route network.More importantly,the total operational cost of the whole network decreases by 6.22%.The computational results show the potential benefits of the model and the advantage of the algorithm.Optimization of air route network can significantly reduce operational cost while ensuring operation safety.Shijin WANG Xi CAO Haiyun LI Qingyun LI Xu HANG Yanjun WANG 2017Chinese Journal of Aeronautics2017,30,3:16
10Selective Ferroptosis Inhibitor Liproxstatin-1 Attenuates Neurological Deficits and Neuroinflammation After Subarachnoid Hemorrhage显示文摘Ferroptosis is a form of iron-dependent regulated cell death.Evidence of its existence and the effects of its inhibitors on subarachnoid hemorrhage(SAH)is still lacking.In the present study,we found that liproxstatin-1 protected HT22 cells against hemin-induced injury by protecting mitochondrial functions and ameliorating lipid peroxidation.In in vivo experiments,we demonstrated the presence of characteristic shrunken mitochondria in ipsilateral cortical neurons after SAH.Moreover,liproxstatin-1 attenuated the neurological deficits and brain edema,reduced neuronal cell death,and restored the redox equilibrium after SAH.The inhibition of ferroptosis by liproxstatin-1 was associated with the preservation of glutathione peroxidase 4 and the downregulation of acylCoA synthetase long-chain family member 4 as well as cyclooxygenase 2.In addition,liproxstatin-1 decreased the activation of microglia and the release of IL-6,IL-1 b,and TNF-a.These data enhance our understanding of cell death after SAH and shed light on future preclinical studies.Yang Cao Yin Li Chao He Feng Yan Jian-Ru Li Hang-Zhe Xu Jian-Feng Zhuang Hang Zhou Yu-Cong Peng Xiong-Jie Fu Xiao-Yang Lu Yuan Yao Yu-Yu Wei Yun Tong Yi-Fu Zhou Lin Wang 2021Neuroscience Bulletin2021,37,4:16
11Allyl isothiocyanate ameliorates lipid accumulation and inflammation in nonalcoholic fatty liver disease via the Sirt1/AMPK and NF-κB signaling pathways显示文摘BACKGROUND Allyl isothiocyanate(AITC),a classic anti-inflammatory and antitumorigenic agent,was recently identified as a potential treatment for obesity and insulin resistance.However,little is known about its direct impact on the liver.AIM To investigate the effect and underlying mechanism of AITC in nonalcoholic fatty liver disease(commonly referred to as NAFLD).METHODS To establish a mouse and cellular model of NAFLD,C57BL/6 mice were fed a high fat diet(HFD)for 8 wk,and AML-12 cells were treated with 200μM palmitate acid for 24 h.For AITC treatment,mice were administered AITC(100 mg/kg/d)orally and AML-12 cells were treated with AITC(20μmol/L).RESULTS AITC significantly ameliorated HFD-induced weight gain,hepatic lipid accumulation and inflammation in vivo.Furthermore,serum alanine aminotransferase and aspartate aminotransferase levels were markedly reduced in AITC-treated mice.Mechanistically,AITC significantly downregulated the protein levels of sterol regulatory elementbinding protein 1(SREBP1)and its lipogenesis target genes and upregulated the levels of proteins involved in fatty acidβ-oxidation,as well as the upstream mediators Sirtuin 1(Sirt1)and AMPactivated protein kinaseα(AMPKα),in the livers of HFD-fed mice.AITC also attenuated the nuclear factor kappa B(NF-κB)signaling pathway.Consistently,AITC relieved palmitate acid-induced lipid accumulation and inflammation in AML-12 cells in vitro through the Sirt1/AMPK and NF-κB signaling pathways.Importantly,further studies showed that the curative effect of AITC on lipid accumulation was abolished by siRNA-mediated knockdown of either Sirt1 or AMPKαin AML-12 cells.CONCLUSION AITC significantly ameliorates hepatic steatosis and inflammation by activating the Sirt1/AMPK pathway and inhibiting the NF-κB pathway.Therefore,AITC is a potential therapeutic agent for NAFLD.Chun-Xiao Li Jian-Guo Gao Xing-Yong Wan Yi Chen Cheng-Fu Xu Ze-Min Feng Hang Zeng Yi-Ming Lin Han Ma Ping Xu Chao-Hui Yu You-Ming Li 2019World Journal of Gastroenterology2019,25,34:14
12High-security-level multi-dimensional optical storage medium:nanostructured glass embedded with LiGa_(5)O_(8):Mn^(2+) with photostimulated luminescence显示文摘The launch of the big data era puts forward challenges for information preservation technology,both in storage capacity and security.Herein,a brand new optical storage medium,transparent glass ceramic(TGC)embedded with photostimulated LiGa5O8:Mn2+nanocrystals,capable of achieving bit-by-bit optical data write-in and read-out in a photon trapping/detrapping mode,is developed.The highly ordered nanostructure enables light–matter interaction with high encoding/decoding resolution and low bit error rate.Importantly,going beyond traditional 2D optical storage,the high transparency of the studied bulk medium makes 3D volumetric optical data storage(ODS)possible,which brings about the merits of expanded storage capacity and improved information security.Demonstration application confirmed the erasable-rewritable 3D storage of binary data and display items in TGC with intensity/wavelength multiplexing.The present work highlights a great leap in photostimulated material for ODS application and hopefully stimulates the development of new multi-dimensional ODS media.Shisheng Lin Hang Lin Chonggeng Ma Yao Cheng Sizhe Ye Fulin Lin Renfu Li Ju Xu Yuansheng Wang 2020Light(Science & Applications)2020,9,1:12
13Association of biochar properties with changes in soil bacterial,fungal and fauna communities and nutrient cycling processes显示文摘Soil microorganisms play crucial roles in soil nutrient cycling,carbon sequestration,fertility maintenance and crop health and production.To date,the responses of microorganisms,such as microbial activity,diversity,community structure and nutrient cycling processes,to biochar addition have been widely reported.However,the relationships between soil microbial groups(bacteria,fungi and microscopic fauna)and biochar physicochemical properties have not been summarized.In this review,we conclude that biochar affects soil microbial growth,diversity and community compositions by directly provid-ing growth promoters for soil biota or indirectly changing soil basic properties.The porous structure,labile C,high pH and electrochemical properties of biochar play an important role in determining soil microbial abundance and communities,and their mediated N and P cycling processes,while the effects and underlying mechanisms vary with biochar types that are affected by pyrolysis temperature and feedstock type.Finally,we highlight some issues related to research methodology and subjects that are still poorly understood or controversial,and the perspectives for further research in microbial responses to biochar addition.Zhongmin Dai Xinquan Xiong Hang Zhu Haojie Xu Peng Leng Jihui Li CTang Jianming Xu 2021Biochar2021,3,3:12
14Major advances in studies of the physical geography and living environment of China during the past 70 years and future prospects显示文摘The natural environment provides material essentials for human survival and development. The characteristics,processes, regional differentiation and forcing mechanisms of the elements of the natural environment(e.g. geomorphology,climate, hydrology, soil, etc.) are the main objects of research in physical geography. China has a complex natural environment and huge regional differentiation and therefore it provides outstanding reserach opportunities in physical geography. This review summarizes the most important developments and the main contributions of research in the physical geography and human living environment in China during the past 70 years. The major topics addressed are the uplift of the Tibetan Plateau and the evolution of its cryosphere, the development of fluvial systems, the acidification of the vast arid region of the Asian interior, variations in the monsoon and westerly climate systems on multiple timescales, the development of lakes and wetlands, the watershed system model, soil erosion, past human-environment interactions, biogeography, and physical geographic zonality. After briefly introducing international research developments, we review the history of research in physical geography in China, focusing on the major achievements and major academic debates, and finally we summarize the status of current research and the future prospects. We propose that in the context of the national demand for the construction of an ecological civilization, we should make full use of the research findings of physical geography, and determine the patterns and mechanisms of natural environmental processes in order to continue to promote the continued contribution of physical geography to national development strategies, and to further contribute to the theory of physical geography from a global perspective.Fahu CHEN Bojie FU Jun XIA Duo WU Shaohong WU Yili ZHANG Hang SUN Yu LIU Xiaomin FANG Boqiang QIN Xin LI Tingjun ZHANG Baoyuan LIU Zhibao DONG Shugui HOU Lide TIAN Baiqing XU Guanghui DONG Jingyun ZHENG Wei YANG Xin WANG Zaijun LI Fei Wang Zhenbo HU Jie WANG Jianbao LIU Jianhui CHEN Wei HUANG Juzhi HOU Qiufang CAI Hao LONG Ming JIANG Yaxian HU Xiaoming FENG Xingguo MO Xiaoyan YANG Dongju ZHANG Xiuhong WANG Yunhe YIN Xiaochen LIU 2019Science China Earth Sciences2019,62,11:11
15Spontaneous Coronary Artery Dissection as a Cause of Acute Myocardial Infarction in Young Female Population: A Single-center Study显示文摘Pei-Na Meng Chen Xu Wei You Zhi-Ming Wu Du-Jiang Xie Hang Zhang Chang Pan Fei Ye 2017Chinese Medical Journal2017,,13:10
16Assessing the Ecological Quality of Nanjing during Its Urbanization Process by Using Satellite,Meteorological,and Socioeconomic Data显示文摘Assessing the ecological status of different districts within a city undergoing urbanization is challenging given their complex surface types and fast pace of development.In this study,we utilized satellite data obtained from Landsat5/TM(Thematic Mapper)and Landsat 8/OLI(Operational Land Imager)images in conjunction with meteorological and socioeconomic data to construct a remote sensing ecological index(RSEI)for monitoring the ecological quality of Nanjing,Jiangsu Province.A higher RSEI value corresponded to better ecological quality.Five ratings were associated with RSEI values of city districts:very poor,poor,average,good,and excellent.In Nanjing,the percentage of areas evidencing good RSEI ratings decreased from 55.9%in 2000 to 48.0%in 2018,whereas there was a slight increase in areas with very poor RSEI ratings during this period.Of the 11 city districts,16.8%,21.8%,and 61.4%respectively evidenced the increasing,decreasing,and stable ecological quality relative to their quality in 2000.Of the11 administrative districts in Nanjing,the main urban districts evidenced increased RSEI values in 2018 compared with those in 2000,with the improved areas exceeding the ones that had deteriorated in these districts.However,the ecological quality of new urban and ed because of the urban expansion,with areas that had deteriorated exceeding the improved ones.Of the three protected ecological zones,the quality of Zijin Mountain National Forest Park was considerably better than that of Laoshan and Jiangxinzhou.Overall,the urbanization rate and RSEI evidenced a high negative correlation coefficient value(-0.76).The urbanization process of Nanjing induced a declining trend for the ecological quality,indicating the need of strong protection measures for the maintenance or improvement of its ecological environment.Xin HANG Yachun LI Xiaochun LUO Min XU Xiuzhen HAN 2020Journal of Meteorological Research2020,34,2:10
17Comorbidity Burden of Dementia:A Hospital-Based Retrospective Study from 2003 to 2012 in Seven Cities in China显示文摘Dementia is increasing dramatically and imposes a huge burden on society. To date, there is a lack of data on the health status of patients with dementia in China. In an attempt to investigate the comorbidity burden of dementia patients in China at the national level, we enrolled 2,938 patients with Alzheimer's disease(AD), vascular dementia(Va D), or other types of dementia, who were admitted to tertiary hospitals in seven regions of China from January2003 to December 2012. The Charlson Comorbidity Index(CCI) was used to evaluate the comorbidity burden of the patients with dementia. Among these patients, 53.4% had AD, 26.3% had Va D, and 20.3% had other types of dementia. The CCI was 3.0 ± 1.9 for all patients,3.4 ± 1.8 for those with Va D, and 3.0 ± 2.1 for those with AD. The CCI increased with age in all patients, andthe length of hospital stay and daily expenses rose with age and CCI. Males had a higher CCI and a longer stay than females. Moreover, patients admitted in the last 5 years of the study had a higher CCI than those admitted in the first 5 years. We found that the comorbidity burden of patients with dementia is heavy. These findings provide a better understanding of the overall health status of dementia patients, and help to increase the awareness of clinicians and policy-makers to improve medical care for patients.Qing-Hua Wang Xin Wang Xian-Le Bu Yan Lian Yang Xiang Hong-Bo Luo Hai-Qiang Zou Jie Pu Zhong-He Zhou Xiao-Ping Cui Qing-Song Wang Xiang-Qun Shi Wei Han Qiang Wu Hui-Sheng Chen Hang Lin Chang-Yue Gao Li-Li Zhang Zhi-Qiang Xu Meng Zhang Hua-Dong Zhou Yan-Jiang Wang 2017Neuroscience Bulletin2017,33,6:10
18A novel anticancer property of Lycium barbarum polysaccharide in triggering ferroptosis of breast cancer cells显示文摘Breast cancer is one of the most malignant tumors and is associated with high mortality rates among women.Lycium barbarum polysaccharide(LBP)is an extract from the fruits of the traditional Chinese herb,L.barbarum.LBP is a promising anticancer drug,due to its high activity and low toxicity.Although it has anticancer properties,its mechanisms of action have not been fully established.Ferroptosis,which is a novel anticancer strategy,is a cell death mechanism that relies on iron-dependent lipid reactive oxygen species(ROS)accumulation.In this study,human breast cancer cells(Michigan Cancer Foundation-7(MCF-7)and MD Anderson-Metastatic Breast-231(MDA-MB-231))were treated with LBP.LBP inhibited their viability and proliferation in association with high levels of ferroptosis.Therefore,we aimed to ascertain whether LBP reduced cell viability through ferroptosis.We found that the structure and function of mitochondria,lipid peroxidation,and expression of solute carrier family 7 member 11(SLC7 A11,also known as x CT,the light-chain subunit of cystine/glutamate antiporter system X_(c)^(-))and glutathione peroxidase 4(GPX4)were altered by LBP.Moreover,the ferroptosis inhibitor,Ferrostatin-1(Fer-1),rescued LBP-induced ferroptosis-associated events including reduced cell viability and glutathione(GSH)production,accumulation of intracellular free divalent iron ions and malondialdehyde(MDA),and down-regulation of the expression of x CT and GPX4.Erastin(x CT inhibitor)and RSL3(GPX4 inhibitor)inhibited the expression of x CT and GPX4,respectively,which was lower after the co-treatment of LBP with Erastin and RSL3.These results suggest that LBP effectively prevents breast cancer cell proliferation and promotes ferroptosis via the x CT/GPX4 pathway.Therefore,LBP exhibits novel anticancer properties by triggering ferroptosis,and may be a potential therapeutic option for breast cancer.Xing DU Jingjing ZHANG Ling LIU Bo XU Hang HAN Wenjie DAI Xiuying PEI Xufeng FU Shaozhang HOU 2022Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2022,23,4:10
19Platelet count combined with right liver volume and spleen volume measured by magnetic resonance imaging for identifying cirrhosis and esophageal varices显示文摘AIM: To determine whether the combination of platelet count(PLT) with spleen volume parameters and right liver volume(RV) measured by magnetic resonance imaging(MRI) could predict the Child-Pugh class of liver cirrhosis and esophageal varices(EV).METHODS: Two hundred and five cirrhotic patients with hepatitis B and 40 healthy volunteers underwent abdominal triphasic-enhancement MRI and laboratory examination of PLT in 109/L. Cirrhotic patients underwent endoscopy for detecting EV. Spleen maximal width(W), thickness(T) and length(L) in mm together with spleen volume(SV) and RV in mm3 were measured by MRI, and spleen volume index(SI) in mm3 was obtained by W × T × L. SV/PLT, SI/PLT and RV × PLT/SV(RVPS) were calculated and statistically analyzed to assess cirrhosis and EV.RESULTS: SV/PLT(r = 0.676) and SI/PLT(r = 0.707) increased, and PLT(r =-0.626) and RVPS(r =-0.802) decreased with the progress of Child-Pugh class(P < 0.001 for all). All parameters could determine the presence of cirrhosis, distinguish between each class of Child-Pugh class, and identify the presence of EV [the areas under the curve(AUCs) = 0.661-0.973]. A m o n g p a ra m e t e r s, R V P S c o u l d b e s t d e t e r m i n e presence and each class of cirrhosis with AUCs of 0.973 and 0.740-0.853, respectively; and SV/PLT could best identify EV with an AUC of 0.782.CONCLUSION: The combination of PLT with SV and RV could predict Child-Pugh class of liver cirrhosis and identify the presence of esophageal varices.Xiao-Li Chen Tian-Wu Chen Xiao-Ming Zhang Zhen-Lin Li Nan-Lin Zeng Ping Zhou Hang Li Jing Ren Guo-Hui Xu Jia-Ni Hu 2015World Journal of Gastroenterology2015,21,35:10
20Terahertz metasurface zone plates with arbitrary polarizations to a fixed polarization conversion显示文摘Metasurfaces that can realize the polarization manipulation of electromagnetic waves on the sub-wavelength scale have become an emerging research field.Here,a novel strategy of combining the metasurface and Fresnel zone plate to form a metasurface zone plate is proposed to realize the conversion from nearly arbitrary polarizations to a fixed polarization.Specifically,when one polarized wave is incident on adjacent ring zones constructed by different types of meta-atoms,the transmitted waves generated by odd-numbered and even-numbered ring zones converge at the same focus and superimpose to generate a fixed polarized wave.As function demonstrations,we have designed two types of metasurface zone plates:one is a focused linear polarizer,and the other can convert nearly arbitrary polarized waves into focused circularly polarized waves.The simulated and measured results are consistent with theoretical expectations,suggesting that the proposed concept is flexible and feasible.Our work provides an alternative platform for polarization manipulation and may vigorously promote the development of polarization photonic devices.Zhen Yue Jitao Li Jie Li Chenglong Zheng Jingyu Liu Guocui Wang Hang Xu Mingyang Chen Yating Zhang Yan Zhang Jianquan Yao 2022Opto-Electronic Science2022,1,3:9
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