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1170篇 您的检索式:作者名="Zhao Qu"
    题名 作者 年代 出处 被引量
1Effect of in-hospital medical complications on case fatality post-acute ischemic stroke: data from the China National Stroke Registry显示文摘WANG Peng-lian ZHAO Xing-quan YANG Zhong-hua WANG An-xin WANG Chun-xue LIU Li-ping WANGYi-long WANG Xin-gao JU Yi CHEN Sheng-yun CHEN Qi-dong QU Hui LU Jing-jing ZHANG Jing MA Rui-hua ZHANG Yu-mei WANG Yong-jun 2012Chinese Medical Journal2012,,14:37
2Pachytene piRNAs instruct massive mRNA elimination during late spermiogenesis显示文摘在哺乳动物的精子发生被 piRNA 表示的二个波浪描绘:一个人对应于负责的经典 piRNAs 因为 silencing retrotransponsons 和第二个波浪主要在 pachytene spermatocytes 从 nontransposon intergenic 区域被导出,但是这些 pachytene piRNAs 的功能大部分是未知的。这里,我们在在老鼠伸长指示巨大的 mRNA 消除报导 pachytene piRNAs 的参与 spermatids (ES ) 。我们证明包含鼠科的 PIWI (MIWI ) 和 deadenylase CAF1 的导致 piRNA 的 silencing 建筑群(pi-RISC ) 有选择地在 ES 被装配,它负责经由在体的房间类似于 miRNAs 的行动的机制导致 mRNA deadenylation 和腐烂。如此的一个高度安排的节目看起来充分利用 pachytene piRNAs 的能力从 nontransposon intergenic 区域导出的多样化的指向的庞大的全部剧目。这些调查结果建议 pachytene piRNAs 负责为精子生产作准备,从 ES 使广阔细胞的节目失去活性。Lan-Tao Gou Peng Dai Jian-Hua Yang Yuanchao Xue Yun-Ping Hu Yu Zhou Jun-Yan Kang Xin Wang Hairi Li Min-Min Hua Shuang Zhao Si-Da Hu Li-Gang Wu Hui-Juan Shi Yong Li Xiang-Dong Fu Liang-Hu Qu En-Duo Wang Mo-Fang Liu 2014Cell Research2014,24,6:39
3Chinese Stroke Association guidelines for clinical management of cerebrovascular disorders:executive summary and 2019 update of clinical management of stroke rehabilitation显示文摘Stroke is the third leading cause of long-term disability.Effective stroke rehabilitation should be provided to patients with a moderate or severe stroke so as to achieve functional recovery.Also,stroke rehabilitation is moving towards more intense therapy models that incorporate technologies such as robotics and computer games.Evidence-based guidelines are useful for promoting the best possible clinical practices.This guideline summarises the modes of stroke rehabilitation in China-three-stage rehabilitation network,rehabilitation of stroke dysfunction,training for activities of daily living,stroke complications and rehabilitation care.The aim of this guideline was to provide a synopsis of best clinical practices in the stroke rehabilitation of adult patients in China.Tong Zhang Jun Zhao Xueping Li Yulong Bai Baojun Wang Yun Qu Bingjie Li Shengjie Zhao Chinese Stroke Association Stroke Council Guideline Writing Committee 2020Stroke & Vascular Neurology2020,5,3:38
4Geological Characteristics and Ore-forming Time of the Dexing Porphyry Copper Ore Mine in Jiangxi Province显示文摘The Dexing porphyry copper ore mine is located in the Qin-Hang metallogenic belt between the Yangtze block and the Cathaysia block. It is a giant porphyry copper mine in China, including 3 ore districts: Tongchang, Fujiawu and Zhushahong. Our analyses of Re in molybdenite indicate that the ore-forming material of the copper ore deposits in Dexing should be mainly mantle-derived. Our study fills in a gap in the study of formation time of the Dexing copper mine, and further proves that the copper ore deposits in the three ore districts should be formed simultaneously, about 170 Ma, belonging to the early Yanshan period, and that the formation time of the copper ore deposits should be consistent with the formation time of granodiorite porphyry in which the copper ore deposits are hosted. Promising areas for seeking porphyry copper ore deposits is predicated to be the west or southwest of Dexing.GUO Shuo ZHAO Yuany QU Huanchun WU Dexin XU Hong LI Chao LIU Yan ZHU Xiaoyun WANG Zengke 2012Acta Geologica Sinica(English Edition)2012,86,3:28
5Subcellular localization of the stripe disease-specific protein encoded by rice stripe virus (RSV) in its vector,the small brown planthopper,Laodel-phax striatellus显示文摘The stripe disease-specific protein (SP) encoded by the rice stripe virus (RSV) was successfully used as a localization signal of the virus in its vector, the small brown lanthopper, Laodelphax striatellus Fallen. Immunogold particles in large numbers were detected in various parts of the viruliferous females: the ovum, surface of chorion, the mid-gut lumen, and the columnar cells. Whereas there was noneof these particles in the non-viruliferous females and males, and testis of viruliferous males. Endosymbionts (mycetocytes) were abundant, harboring ovaries of both viruliferous and non-viruliferous females, but none in the testis of males. The results provided us with the direct proof that RSV is a ciruculative and propagative plant virus and it was transovarially transmitted alongside with endosymbionts of its vector. Therefore, we deem it a nice lead for future studies on the mechanism of RSV transmission and functioning of its viral proteins.WU Aizhong ZHAO Yan QU Zhicai SHEN Daleng PAN Chongguang SU Deming 2001Chinese Science Bulletin2001,46,21:23
6Ten cities cross-sectional questionnaire survey of children asthma and other allergies in China显示文摘Asthma,rhinitis and eczema(allergic or non-allergic)have increased throughout the world during the last decades,especially among children.Changes in the indoor environment are suspected to be important causes.China has experienced a dramatic change in indoor environmental exposures during the past two decades.However,such changes and their associations with children’s asthma and other health aspects have not been thoroughly studied.China,Children,Homes,Health(CCHH),Phase I,was a cross-sectional questionnaire survey of 48219 children 1–8 years old in 10 Chinese cities during 2010–2012.The questionnaire includes the International Study of Asthma and Allergies in Childhood(ISAAC)core health questions and additional questions regarding housing,life habits and outdoor environment.In health analyses,children aged 3–6 years old were included.The prevalences of doctor diagnosed asthma varied from 1.7%to 9.8%(mean 6.8%),a large increase from 0.91%in 1999 and 1.50%in2000.The prevalence of wheeze,rhinitis and atopic eczema(last 12 months)varied from 13.9%to 23.7%,24.0%to 50.8%and4.8%to 15.8%,respectively.Taiyuan had the lowest prevalences of all illnesses and Shanghai the highest,except for wheezewhere the highest value was for Urumqi.We found(1)no obvious association between disease prevalences and ambient PM10concentrations and(2)higher prevalences of disease in humid climates with hot summers and cold winters,but with no centrally heated buildings.Associations between the diseases and economic status as indexed by Gross Domestic Product(GDP)requires further study.ZHANG YinPing LI BaiZhan HUANG Chen YANG Xu QIAN Hua DENG QiHong ZHAO ZhuoHui LI AnGui ZHAO JiaNing ZHANG Xin QU Fang HU Yu YANG Qin WANG Juan ZHANG Ming WANG Fang ZHENG XiaoHong LU Chan LIU ZhiJian SUN YueXia MO JinHan ZHAO YiLi LIU Wei WANG TingTing NORBCK Dan BORNEHAG Carl-Gustaf SUNDELL Jan 2013Chinese Science Bulletin2013,58,34:22
7Age-related rhesus macaque models of COVID-19显示文摘Background:Since December 2019,an outbreak of the Corona Virus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)in Wuhan,China,has become a public health emergency of international concern.The high fatality of aged cases caused by SARS-CoV-2 was a need to explore the possible age-related phenomena with non-human primate models.Methods:Three 3-5 years old and two 15 years old rhesus macaques were intratracheally infected with SARS-CoV-2,and then analyzed by clinical signs,viral replication,chest X-ray,histopathological changes and immune response.Results:Viral replication of nasopharyngeal swabs,anal swabs and lung in old monkeys was more active than that in young monkeys for 14 days after SARS-CoV-2 challenge.Monkeys developed typical interstitial pneumonia characterized by thickened alveolar septum accompanied with inflammation and edema,notably,old monkeys exhibited diffuse severe interstitial pneumonia.Viral antigens were detected mainly in alveolar epithelial cells and macrophages.Conclusion:SARS-CoV-2 caused more severe interstitial pneumonia in old monkeys than that in young monkeys.Rhesus macaque models infected with SARS-CoV-2 provided insight into the pathogenic mechanism and facilitated the development of vaccines and therapeutics against SARS-CoV-2 infection.Pin Yu Feifei Qi Yanfeng Xu Fengdi Li Peipei Liu Jiayi Liu Linlin Bao Wei Deng Hong Gao Zhiguang Xiang Chong Xiao Qi Lv Shuran Gong Jiangning Liu Zhiqi Song Yajin Qu Jing Xue Qiang Wei Mingya Liu Guanpeng Wang Shunyi Wang Haisheng Yu Xing Liu Baoying Huang Wenling Wang Li Zhao Huijuan Wang Fei Ye Weimin Zhou Wei Zhen Jun Han Guizhen Wu Qi Jin Jianwei Wang Wenjie Tan Chuan Qin 2020Animal Models and Experimental Medicine2020,3,1:22
8SHRIMP U-Pb zircon dating of the Ordos Basin basement and its tectonic significance显示文摘SHRIMP U-Pb zircon 207 Pb/206 Pb ages were obtained from two drill cores from the basement of the Ordos Basin.A garnet-sillimanite-biotite-plagioclase gneiss(QI1-1) from the western Ordos Basin basement yielded an average age of 2031 10 Ma.Based on the mineral assemblages,the source material of the gneiss is speculated to be pelitic-felsic system.A gneissic two-mica granite(Long1-1) from the eastern Ordos Basin basement yielded an average age of 2035 10 Ma.The zircons from both samples exhibit magmatic growth pattern.The shapes of the zircons suggest that the zircons should crystallize from a granitic of felsic volcanic terrain.The ages and the characters of zircons are consisitent with the other researches in the Ordos Basin and indicate that the basement of the Ordos Basin had experienced an intensive magmatic epsode during the late Paleoproterozoic period.The date from this study suggest the possible existences of a Paleoproterozoic mobile tectonic belt in the region.The reconstruction of such a belt is critical for understanding the tectonomagmatic evolution of the western block of the North China Craton.HU JianMin LIU XinShe LI ZhenHong ZHAO Yue ZHANG ShuanHong LIU XiaoChun QU HongJie CHEN Hong 2013Chinese Science Bulletin2013,58,1:21
9Computer navigation-assisted minimally invasive percutaneous screw placement for pelvic fractures显示文摘Pelvic fractures are often caused by high-energy injuries and accompanied by hemodynamic instability.Traditional open surgery has a large amount of bleeding,which is not suitable for patients with acute pelvic fracture.Navigationguided,percutaneous puncture-screw implantation has gradually become a preferred procedure due to its advantages,which include less trauma,faster recovery times,and less bleeding.However,due to the complexity of pelvic anatomy,doctors often encounter some problems when using navigation to treat pelvic fractures.This article reviews the indications,contraindications,surgical procedures,and related complications of this procedure for the treatment of sacral fractures,sacroiliac joint injuries,pelvic ring injuries,and acetabular fractures.We also analyze the causes of inaccurate screw placement.Percutaneous screw placement under navigational guidance has the advantages of high accuracy,low incidence of complications and small soft-tissue damage,minimal blood loss,short hospital stays,and quick recovery.There is no difference in the incidence of complications between surgeries performed by new doctors and experienced ones.However,computer navigation technology requires extensive training,and attention should be given to avoid complications such as screw misplacement,intestinal injury,and serious blood vessel and nerve injuries caused by navigational drift.Tong Yu Xue-Liang Cheng Yang Qu Rong-Peng Dong Ming-Yang Kang Jian-Wu Zhao 2020World Journal of Clinical Cases2020,8,12:18
10Leber's hereditary optic neuropathy is associated with the mitochondrial ND4 G11696A mutation in five Chinese families显示文摘Zhou XT Wei QP Yang L Tong Y Zhao FX Lu CJ Qian YP Sun YH Lu F Qu J Guan MX 2006中国生物学文摘2006,20,4:18
11Screening disease-associated proteins from sera of patients with rheumatoid arthritis: a comparative proteomic study显示文摘背景风湿性关节炎(RA ) 是长期的发炎在 synovial 膜描绘的自体免疫的疾病。尽管大进步最近在探索 RA 的病原学和致病被取得了,它的分子的病理学的机制尚待进一步被定义,它仍然是在决定诊断并且在在早病人选择适当治疗的大挑战。这研究被执行屏蔽由比较 proteomics 的联系 RA 的浆液蛋白质研究提供的候选人 RA 的早诊断和治疗的线索。从 6 个 RA 病人和 6 个健康志愿者孤立的方法 Sera 分别地被分享,高丰富的蛋白质被血浆 7 多重亲密关系移动系统弄空。在二个组之间的蛋白质表示侧面然后被二维的胶化电气泳动(2-DE ) 比较,由超过 3 褶层的蛋白质 over/under-expressed 被集体 spectrometry 分析识别。为了验证在二个组,之间的识别蛋白质的微分表示层次, ELISA 从 32 个 RA 病人和 32 个志愿者在单个 sera 在二识别蛋白质被执行。结果在 RA 病人的 sera 的 over/under-expressed 被识别的八蛋白质。在他们之中,, transthyretin (TTR ) 的链 A 是下面表示的浆液淀粉的 A 蛋白质, apolipoprotein A (ApoA )-IV, ApoA-IV 先锋, haptoglobin 2, ceruloplasmin (Cp ) ,免疫球蛋白总科 22 并且 HT016 是过去表示的。当 TTR 显然与志愿者组相比在 RA 降低组时, ELISA 测试证实了更高显著地表示的那 Cp。有 8 的结论识别了在 RA 组和志愿者组之间表示的蛋白质差别,它可能是联系 RA 的蛋白质和力量为 RA 正在答应诊断指示物或治疗学的目标的候选人。LI Tian-wang ZHENG Ben-rong HUANG Zhi-xiang LIN Qu ZHAO Li-ke LIAO Ze-tao ZHAO Ji-jun LIN Zhi-ming GU Jie-ruo 2010Chinese Medical Journal2010,,5:16
12Discovery and preliminary study of the high tungsten and lithium contents in the Dazhuyuan bauxite deposit, Guizhou, China显示文摘Bauxite in China remains an urgently needed resource largely dependent on imports. Based on the study of the newly-discovered Dazhuyuan bauxite deposit in northeastern Guizhou, we have found new enrichment of tungsten and lithium in bauxite, with the highest WO 3 content up to 0.33% and the highest Li 2 O content up to 0.58%. The present paper reports the initial result, and the spatial distribution feature of W and Li in the ore body (with Li enriched mostly in the north part of the west limb of the Liyuan syncline, whereas W enriched mostly in the central part of the east limb). The results suggest that it is necessary to delineate lithium and tungsten ore body independently, discuss the feasibility of its industrial utilization, and point out the new direction of synthetic appraisal for such kinds of traditional mineral resources, in order to forecast and assess bauxite resources in the region.WANG DengHong LI PeiGang QU WenJun YIN LiJuan ZHAO Zhi LEI ZhiYuan WEN ShenFu 2013Science China Earth Sciences2013,56,1:16
13A long-term Global LAnd Surface Satellite(GLASS)data-set for environmental studies显示文摘Recently,five Global LAnd Surface Satellite(GLASS)products have been released:leaf area index(LAI),shortwave broadband albedo,longwave broadband emissivity,incident short radiation,and photosynthetically active radiation(PAR).The first three products cover the years 19822012(LAI)and 19812010(albedo and emissivity)at 15 km and 8-day resolutions,and the last two radiation products span the period 20082010 at 5 km and 3-h resolutions.These products have been evaluated and validated,and the preliminary results indicate that they are of higher quality and accuracy than the existing products.In particular,the first three products have much longer time series,and are therefore highly suitable for various environmental studies.This paper outlines the algorithms,product characteristics,preliminary validation results,potential applications and some examples of initial analysis of these products.Shunlin Liang Xiang Zhao Suhong Liu Wenping Yuan Xiao Cheng Zhiqiang Xiao Xiaotong Zhang Qiang Liu Jie Cheng Hairong Tang Yonghua Qu Yancheng Bo Ying Qu Huazhong Ren Kai Yu John Townshend 2013International Journal of Digital Earth2013,6,S01:16
14Prognostic significance of preoperative fibrinogen in patients with colon cancer显示文摘AIM:To investigate the prognostic significance of preoperative fibrinogen levels in colon cancer patients.METHODS:A total of 255 colon cancer patients treated at the Affiliated Tumor Hospital of Xinjiang Medical University from June 1st 2005 to June 1st 2008 were enrolled in the study.All patients received radical surgery as their primary treatment method.Preoperative fibrinogen was detected by the Clauss method,and all patients were followed up after surgery.Preoperative fibrinogen measurements were correlated with a number of clinicopathological parameters using the Student t test and analysis of variance.Survival analyses were performed by the Kaplan-Meier method and Cox regression modeling to measure 5-year disease-free survival(DFS)and overall survival(OS).RESULTS:The mean preoperative fibrinogen concentration of all colon cancer patients was 3.17±0.88 g/L.Statistically significant differences were found between preoperative fibrinogen levels and the clinicopathological parameters of age,smoking status,tumor size,tumor location,tumor-node-metastasis(TNM)stage,modified Glasgow prognostic scores(mGPS),white blood cell(WBC)count,neutrophil-lymphocyte ratio(NLR),platelet-lymphocyte ratio(PLR),and carcinoembryonic antigen(CEA)levels.Univariate survival analysis showed that TNM stage,tumor cell differentiation grade,vascular invasion,mGPS score,preoperative fibrinogen,WBC,NLR,PLR and CEA all correlated with both OS and DFS.Alpha-fetoprotein(AFP)and body mass index correlated only with OS.Kaplan-Meier analysis revealed that both OS and DFS of the total cohort,as well as of the stageⅡandⅢpatients,were higher in the hypofibrinogen group compared to the hyperfibrinogen group(all P<0.05).In contrast,there was no significant difference between OS and DFS in stageⅠpatients with low or high fibrinogen levels.Cox regression analysis indicated preoperative fibrinogen levels,TNM stage,mGPS score,CEA,and AFP levels correlated with both OS and DFS.CONCLUSION:Preoperative fibrinogen levels can serve as an independent prognostic marker to evaluate patient response to colon cancer treatment.Zhen-Qiang Sun Xiao-Na Han Hai-Jiang Wang Yong Tang Ze-Liang Zhao Yan-Li Qu Rui-Wei Xu Yan-Yan Liu Xian-Bo Yu 2014World Journal of Gastroenterology2014,20,26:16
15Influence of microwave treatment under a hydrogen or methane atmosphere on the flotability of the macerals in Shenfu coals显示文摘The modification of Shenfu coals by a microwave treatment carried out under a hydrogen or a methane atmosphere, and the subsequent maceral separation by flotation, are described in this paper. The surface contact angle and the Zeta potential of the coal macerals were measured both with and without the treat- ment. The results show that the surface wettability of SFF (Shenfu Fusain) and SFV (Shenfu Vitrain) can be changed by the microwave treatment. An increase in the difference in surface wettability of SFF and SFV causes in a subsequent increase in the enrichment of inertinite and vitrinite. The results of the Zeta potential measurements show that the surface potentials of SFF and SFV are also changed by the treatment.Zhao Wei Yang Fusheng Li Yuangang Qu Jianlin Zhou Anning 2011Mining Science and Technology2011,21,6:15
16Highly Stretchable,Elastic,and Sensitive MXene-Based Hydrogel for Flexible Strain and Pressure Sensors显示文摘Electronic skin is driving the next generation of cutting-edge wearable electronic products due to its good wearability and high accuracy of information acquisition.However,it remains a challenge to fulfill the requirements on detecting full-range human activities with existing flexible strain sensors.Herein,highly stretchable,sensitive,and multifunctional flexible strain sensors based on MXene-(Ti_(3)C_(2)T_(x)-)composited poly(vinyl alcohol)/polyvinyl pyrrolidone double-network hydrogels were prepared.The uniformly distributed hydrophilic MXene nanosheets formed a three-dimensional conductive network throughout the hydrogel,endowing the flexible sensor with high sensitivity.The strong interaction between the double-network hydrogel matrix and MXene greatly improved the mechanical properties of the hydrogels.The resulting nanocomposited hydrogels featured great tensile performance(2400%),toughness,and resilience.Particularly,the as-prepared flexible pressure sensor revealed ultrahigh sensitivity(10.75 kPa^(-1))with a wide response range(0-61.5 kPa),fast response(33.5 ms),and low limit of detection(0.87 Pa).Moreover,the hydrogel-based flexible sensors,with high sensitivity and durability,could be employed to monitor fullrange human motions and assembled into some aligned devices for subtle pressure detection,providing enormous potential in facial expression and phonation recognition,handwriting verification,healthy diagnosis,and wearable electronics.Yao Lu Xinyu Qu Wen Zhao Yanfang Ren Weili Si Wenjun Wang Qian Wang Wei Huang Xiaochen Dong 2020Research2020,,1:14
17Development and application of mechanized maize harvesters显示文摘Maize harvesting is one of the most important filed operations of maize production.As the accelerating development of maize industry,mechanized maize harvesting is widely accepted and used by farmers in the world.According to the harvesting methods,maize harvesters could be classified into two types,one is maize-for-grain harvesters,including pickers and grain harvesters,the other is whole plant harvesters,including forage harvesters and combined grain-stover harvesters.Structure characteristics,appropriate areas and relative technologies of those harvesters are described in this paper,i.e.,pickers are suitable for multi-crop areas,Grain harvesters are mainly for one-crop areas when grain moisture content is lower than 25%,combined grain-stover harvesters are applicable in agro-pastoral ecotone,and forage harvesters are capable in large-scaled animal husbandry farming areas where large amount of silage are required.Meanwhile,the future development trend of the different harvesters is predicted.Big horsepower engines,enhanced working efficiency,automation and intelligence are required by large scaled farms.As maize breeding development,more varieties that are suitable for grain harvesting are put into practice,so grain combine harvesters will be popular in future.Yang Li Cui Tao Qu Zhe Li Kehong Yin Xiaowei Han Dandan Yan Bingxin Zhao Dongyue Zhang Dongxing 2016International Journal of Agricultural and Biological Engineering2016,9,3:13
18Distributed Power Control for Energy Conservation in Hybrid Cellular Network with Device-to-Device Communication显示文摘Device-to-Device(D2D) communication has been proposed as a promising implementation of green communication to benefit the existed cellular network.In order to limit cross-tier interference while explore the gain of short-range communication,we devise a series of distributed power control(DPC) schemes for energy conservation(EC)and enhancement of radio resource utilization in the hybrid system.Firstly,a constrained opportunistic power control model is built up to take advantage of the interference avoidance methodology in the presence of service requirement and power constraint.Then,biasing scheme and admission control are added to evade ineffective power consumption and maintain the feasibility of the system.Upon feasibility,a non-cooperative game is further formulated to exploit the profit in EC with minor influence on spectral efficiency(SE).The convergence of the DPC schemes is validated and their performance is confirmed via simulation results.TANG Rui ZHAO Jihong QU Hua 2014China Communications2014,11,3:13
19Response gene to complement 32 (RGC-32) expression on M2-polarized and tumor-associated macrophages is M-CSF-dependent and enhanced by tumor-derived IL-4显示文摘补充 32 的反应基因(RGC-32 ) 是涉及房间的增长,区别和迁居的一个房间周期管理者并且也在 angiogenesis 被含有。这里,我们证明在巨噬细胞的那 RGC-32 表情被 IL-4 导致并且由 LPS 减少了,显示在 RGC-32 表示和 M2 极化之间的一个连接。我们证明 RGC-32 的增加的表示或者激活的巨噬细胞,这蛋白质在压制支持 inflammatory cytokine IL-6 的生产并且支持反煽动性的调停人 TGF-β 的生产是特征的;。与一致在 vitro,数据, RGC-32 高级的联系肿瘤的巨噬细胞(TAM ) 快车,和这个表达式被导出肿瘤的腹水的液体以一种 M-CSF- 或 IL-4-dependent 方式导致。一起,这些结果为 M2 巨噬细胞极化作为一个标记建立 RGC-32 并且显示这蛋白质是为癌症免疫疗法的一个潜在的目标,指向联系肿瘤的巨噬细胞。Peng Zhao Daiqing Gao Qingjie Wang Bingfeng Song Qianqian Shao Jintang Sun Chunyan Ji Xingang Li Peng Li Xun Qu 2015Cellular & Molecular Immunology2015,12,6:12
20Genetic and biological characteristics of the globally circulating H5N8 avian influenza viruses and the protective efficacy offered by the poultry vaccine currently used in China显示文摘The H5N8 avian influenza viruses have been widely circulating in wild birds and are responsible for the loss of over 33 million domestic poultry in Europe, Russia, Middle East, and Asia since January 2020. To monitor the invasion and spread of the H5N8 virus in China, we performed active surveillance by analyzing 317 wild bird samples and swab samples collected from 41,172 poultry all over the country. We isolated 22 H5N8 viruses from wild birds and 14 H5N8 viruses from waterfowls. Genetic analysis indicated that the 36 viruses formed two different genotypes: one genotype viruses were widely detected from different wild birds and domestic waterfowls;the other genotype was isolated from a whopper swan. We further revealed the origin and spatiotemporal spread of these two distinct H5N8 virus genotypes in 2020 and 2021. Animal studies indicated that the H5N8 isolates are highly pathogenic to chickens, mildly pathogenic in ducks, but have distinct pathotypes in mice. Moreover, we found that vaccinated poultry in China could be completely protected against H5N8 virus challenge. Given that the H5N8 viruses are likely to continue to spread in wild birds, vaccination of poultry is highly recommended in high-risk countries to prevent H5N8 avian influenza.Pengfei Cui Xianying Zeng Xuyong Li Yanbing Li Jianzhong Shi Conghui Zhao Zhiyuan Qu Yanwen Wang Jing Guo Wenli Gu Qi Ma Yuancheng Zhang Weipeng Lin Minghui Li Jingman Tian Dongxue Wang Xin Xing Yanjing Liu Shuxin Pan Yaping Zhang Hongmei Bao Liling Liu Guobin Tian Chengjun Li Guohua Deng Hualan Chen 2022Science China(Life Sciences)2022,65,4:12
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