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12019新型冠状病毒基因组特征和流行病学:病毒起源和受体结合的意义显示文摘研究者对来自9例新型冠状病毒肺炎住院患者的支气管肺泡灌洗液样本和培养的分离株进行了下一代测序。从这些个体中获得了严重急性呼吸综合征-冠状病毒2(severe acute respiratory syndrome-coronavirus 2,SARS-CoV-2)的完整和部分基因组序列。利用Sanger测序连接病毒重叠群以获得全长基因组,cDNA末端快速扩增确定终端区。对这些SARSCoV-2基因组和其他冠状病毒基因组进行了系统进化分析,以确定该病毒的进化史并有助于推断其可能的起源。刘青(译) 刘莉(审校) Lu R Zhao X Li J Niu P Yang B Wu H Wang W Song H Huang B Zhu N Bi Y Ma X Zhan F Wang L Hu T Zhou H Hu Z Zhou W Zhao L Chen J Meng Y Wang J Lin Y Yuan J Xie Z Ma J Liu WJ Wang D Xu W Holmes EC Gao GF Wu G Chen W Shi W Tan W 2020中华高血压杂志2020,28,3:516
2Association of PINK1 and DJ-1 confers digenic inheritance of early-onset Parkinson's disease显示文摘Tang B Xiong H Sun P Zhang Y Wang D Hu Z Zhu Z Ma H Pan Q Xia JH Xia K Zhang Z 2006中国生物学文摘2006,20,8:30
3血管内超声去肾交感神经术治疗高血压:一项多中心,国际,单盲,随机,假手术对照试验显示文摘早期研究表明,基于射频的去肾交感神经术可降低中度高血压患者的血压。研究者研究了在没有使用抗高血压药物的情况下,使用血管内超声去。肾交感神经术是否会降低高血压患者的动态血压。刘青 叶鹏 Azizi M Schmieder RE Mahfoud F Weber MA Daemen J Davies J Basile J Kirtane AJ Wang Y Lobo MD Saxena M Feyz L Rader F Lurz P Sayer J Sapoval M Levy T Sanghvi K Abraham J Sharp ASP Fisher NDL Bloch MJ Reeve-Stoffer H Coleman L Mullin C Mauri L 2018中华高血压杂志2018,26,10:27
4On the combined effect of soil fertility and topography on tree growth in subtropical forest ecosystems—a study from SE China显示文摘Aims The aim of our research was to understand small-scale effects of topography and soil fertility on tree growth in a forest biodiversity and ecosystem functioning(BEF)experiment in subtropical SE China.Methods Geomorphometric terrain analyses were carried out at a spatial resolution of 5×5 m.Soil samples of different depth increments and data on tree height were collected from a total of 566 plots(667 m2 each).The soils were analyzed for carbon(soil organic carbon[SOC]),nitrogen,acidity,cation exchange capacity(CEC),exchangeable cations and base saturation as soil fertility attributes.All plots were classified into geomorphological units.Analyses of variance and linear regressions were applied to all terrain,soil fertility and tree growth attributes.Important Findings In general,young and shallow soils and relatively small differences in stable soil properties suggest that soil erosion has truncated the soils to a large extent over the whole area of the experiment.This explains the concurrently increasing CEC and SOC stocks downslope,in hollows and in valleys.However,colluvial,carbon-rich sediments are missing widely due to the convexity of the footslopes caused by uplift and removal of eroded sediments by adjacent waterways.The results showed that soil fertility is mainly influenced by topography.Monte-Carlo flow accumulation(MCCA),curvature,slope and aspect significantly affected soil fertility.Furthermore,soil fertility was affected by the different geomorphological positions on the experimental sites with ridge and spur positions showing lower exchangeable base cation contents,especially potassium(K),due to leaching.This geomorphological effect of soil fertility is most pronounced in the topsoil and decreases when considering the subsoil down to 50 cm depth.Few soil fertility attributes affect tree height after 1-2 years of growth,among which C stocks proved to be most important while pH_(KCl)and CEC only played minor roles.Nevertheless,soil acidity and a high proportion of Al on the exchange complex affected tree height even after only 1-2 years growth.Hence,our study showed that forest nutrition is coupled to a recycling of litter nutrients,and does not only depend on subsequent supply of nutrients from the mineral soil.Besides soil fertility,topography affected tree height.We found that especially MCCA as indicator of water availability affected tree growth at small-scale,as well as aspect.Overall,our synthesis on the interrelation between fertility,topography and tree growth in a subtropical forest ecosystem in SE China showed that topographic heterogeneity lead to ecological gradients across geomorphological positions.In this respect,small-scale soil-plant interactions in a young forest can serve as a driver for the future development of vegetation and biodiversity control on soil fertility.In addition,it shows that terrain attributes should be accounted for in ecological research.Thomas Scholten Philipp Goebes Peter Kühn Steffen Seitz Thorsten Assmann Jürgen Bauhus Helge Bruelheide Francois Buscot Alexandra Erfmeier Markus Fischer Werner Härdtle Jin-Sheng He Keping Ma Pascal A.Niklaus Michael Scherer-Lorenzen Bernhard Schmid Xuezheng Shi Zhengshan Song Goddert von Oheimb Christian Wirth Tesfaye Wubet Karsten Schmidt 2017Journal of Plant Ecology2017,10,1:22
5在不影响人足细胞(前)肾素受体信号下,阿利吉仑能抑制细胞内血管紧张素Ⅱ水平显示文摘Sakoda M Ichihara A Kurauchi-Mito A Narita T Kinou-chi K Murohashi-Bokuda K Saleem MA Nishiyama A Suzuki F Itoh H 黄晓斌 2010中华高血压杂志2010,18,7:18
6门静脉高压并非肝细胞癌肝切除术的绝对禁忌证显示文摘在肝细胞癌(hepatocellular carcinoma,HCC)的各种临床分期系统中,Bruix J团队领衔的巴塞罗那肝癌临床分期标准(Barcelona Clinic Liver Cancer,BCLC)最受推崇,美国和欧洲肝病协会指南的制定亦基于该分期系统。BCLC认为门静脉高压显著增加HCC肝切除术后患者发生肝功能衰竭的风险,Zhong JH Li H Xiao N Ye XP Ke Y Wang YY Ma L Chen J You XM Zhang ZY Lu SD Li LQ 钟鉴宏 齐鲁楠 2014中国癌症防治杂志2014,6,4:18
7Interspecific and intraspecific variation in specific root length drives aboveground biodiversity effects in young experimental forest stands显示文摘Aims Although the net biodiversity effect(NE)can be statistically partitioned into complementarity and selection effects(CE and SE),there are different underlying mechanisms that can cause a certain partitioning.Our objective was to assess the role of resource partitioning and species interactions as two important mechanisms that can bring about CEs by interspecific and intraspecific trait variation.Methods We measured tree height of 2493 living individuals in 57 plots and specific root length(SRL)on first-order roots of 368 of these individuals across different species richness levels(1,2,4,8 species)in a large-scale forest biodiversity and ecosystem functioning experiment in subtropical China(BEF-China)established in 2009.We describe the effects of resource partitioning between species by a fixed component of interspecific functional diversity(RaoQ)and further effects of species interactions by variable components of interspecific and intraspecific functional diversity(community weighted trait similarity and trait dissimilarity,CWS and CWD).Finally,we examined the relationships between biodiversity effects on stand-level tree height and functional diversity(RaoQ,CWS and CWD)in SRL using linear regression and assessed the relative importance of these three components of functional diversity in explaining the diversity effects.Important Findings Our results show that species richness significantly affected SRL in five and tree height in ten out of 16 species.A positive NE was generally brought about by a positive CE on stand-level tree height and related to high values of RaoQ and CWS in SRL.A positive CE was related to high values of all three components of root functional diversity(RaoQ,CWS and CWD).Our study suggests that both resource partitioning and species interactions are the underlying mechanisms of biodiversity effects on stand-level tree growth in subtropical forest.Wensheng Bu Bernhard Schmid Xiaojuan Liu Ying Li Werner Härdtle Goddert von Oheimb Yu Liang Zhenkai Sun Yuanyuan Huang Helge Bruelheide Keping Ma 2017Journal of Plant Ecology2017,10,1:18
8下肢浅静脉治疗术后的加压疗法:美国静脉论坛血管、外科学会、美国静脉学会、血管医学学会和国际静脉联盟的临床实践指南显示文摘一、指南的由来下肢浅静脉治疗术后应用压力治疗的方式是几代血管外科医师多年临床经验积累所得,现主要应用于大隐静脉剥脱术、下肢静脉点状剥脱术及静脉硬化治疗等。目前单就静脉硬化治疗而言,术后压力治疗的推荐也是基于相关文献及实验验证[1],但对于其他术式,尤其是对于大隐静脉的热消融术,目前还没有形成规范统一的建议,这也使得当前的压力治疗具有很大的临床差异性。Lurie F Lal BK Antignani PL Blebea J Bush R Caprini J Davies A Forrestal M Jacobowitz G Kalodiki E Killewich L Lohr J Ma H Mosti G Partsch H Rooke T Wakefield T 李丹(译) 陈程浩(译) 牛传强(译) 张靖(译) 黄建忠(译) 2020中华介入放射学电子杂志2020,8,4:16
9Slit-Robo signaling induces malignant transformation through Hakai-mediated E-cadherin degradation during colorectal epithelial cell carcinogenesis显示文摘指导暗示的裂缝家庭绑在环岛(Robo ) 受体并且调制房间移植。我们这里报导 Slit2 的那宫外的表情和上皮的癌房间招募了的表示 Robo1 colorectal 的 Robo1 或 recombinant Slit2 处理为 E-cadherin (电子恶棍) ubiquitination 和 lysosomal 降级,上皮间充质的转变(EMT ) ,和肿瘤生长和肝转移的 ubiquitin ligase Hakai,它被救由 Hakai 击倒。相反,内长的 Robo1 或对 Robo1 有约束力的 Slit2 的特定的封锁击倒阻止的电子恶棍降级和颠倒的 EMT,导致减少的肿瘤生长和肝转移。Robo1 的宫外的表示也在 Slit2 积极的人的胚胎的肾触发了恶意的转变 293 个房间。重要地, Slit2 和 Robo1 的表示显著地在 colorectal 癌病人与增加的变形风险和更差的全面幸存被联系。我们断定由 Slit2 的 Robo1 的那个约会在 colorectal 期间通过调停 Hakai 的电子恶棍 ubiquitination 和 lysosomal 降级导致恶意的转变上皮的房间 carcinogenesis。Wei-Jie Zhou Zhen H Geng Shan Chi Wenli Zhang Xiao-Feng Niu Shu-Jue Lan Li Ma Xuesong Yang Li-Jing Wang Yan-Qing Ding Jian-Guo Geng 2011Cell Research2011,21,4:14
10miR-182参与调节胶质母细胞瘤的凋亡、生长和分化(英文)显示文摘Glioblastoma multiforme(GBM)is a lethal,therapy-resistant brain cancer consisting of numerous tumor cell subpopulations,including stem-like glioma-initiating cells(GICs),which contribute to tumor recurrence following initial response to therapy.Here,we identified miR-182 as a regulator of apoptosis,growth,and differentiation programs whose expression level is correlated with GBM patient survival.Repression of Bcl2-like12(Bcl2L12),c-Met,and hypoxia-inducible factor 2α(HIF2A)is of central importance to miR-182 anti-tumor activity,as it results in enhanced therapy susceptibility,decreased GIC sphere size,expansion,and stemness in vitro.To evaluate the tumor-suppressive function of miR-182 in vivo,we synthesized miR-182-based spherical nucleic acids(182-SNAs);i.e.,gold nanoparticles covalently functionalized with mature miR-182 duplexes.Intravenously administered 182-SNAs penetrated the bloodbrain/blood-tumor barriers(BBB/BTB)in orthotopic GBM xenografts and selectively disseminated throughout extravascular glioma parenchyma,causing reduced tumor burden and increased animal survival.Our results indicate that harnessing the anti-tumor activities of miR-182 via safe and robust delivery of 182-SNAs represents a novel strategy for therapeutic intervention in GBM.Kouri FM Hurley LA Daniel WL Day ES Hua Y Hao L Peng CY Merkel TJ Queisser MA Ritner C Zhang H James CD Sznajder JI Chin L Giljohann DA Kessler JA Peter ME Mirkin CA Stegh AH 2015中华神经外科疾病研究杂志2015,14,2:14
11高危患者目标血压与心血管病预后显示文摘指南推荐血压目标值应〈140/90 mmHg(1mmHg=0.133kPa)以减少心血管事件的发生。但与其他心血管病预后(如冠状动脉事件)相比,包括脑卒中及心力衰竭在内的心血管病预后与收缩压下降关系更密切。一些心血管事件(如冠状动脉事件)风险在收缩压低时亦增高,风险-收缩压关系呈J形曲线,而脑卒中与血压不是J形曲线关系。B?hm M Schumacher H Teo KK Lonn EM Mahfoud F Mann JF Mancia G Redon J Schmieder RE Sliwa K Weber MA Williams BYusuf S 曲浥晨 叶鹏 2017中华高血压杂志2017,25,6:14
12采用动态推-拉技术增强动脉瘤分流器的导流作用:一项实验和模型研究显示文摘目的 神经血管分流器是治疗颅内动脉瘤的一种有弹性的、纵横交错的网状支架。本研究采用动态推-拉技术调节动脉瘤瘤口分流器的网格密度,以便最大化其导流作用。通过自主研发的高保真虚拟支架计算机模型技术联合计算机流体动力学,探讨动态推-拉技术对特定动脉瘤病人血流动力学的影响。方法采用动态推-拉技术和不同长度的传送导线,将两个Pipeline分流器放置到两个相同侧壁的大脑前动脉动脉瘤模型中。然后数字模拟操作过程,并验证模拟的网格几何结构。通过调节放置在侧壁动脉瘤和基底动脉主干梭形动脉瘤(前期已放置分流器)的分流器,采用计算机流体动力学分析,评估血流动力学的具体变化。同时评估来源于临床病例样本的分流器网格的影像。Ma D Xiang J Choi H 周静 郭玉慧 2014中国微侵袭神经外科杂志2014,19,6:12
13A unique sequence in the N-terminal regulatory region controls the nuclear localization of KLF8 by cooperating with the C-terminal zinc-fingers显示文摘Kr 眉 p 像像素的因素 8 (KLF8 ) 抄写因素在房间周期前进起一个关键作用, oncogenic 转变,对间充质的转变和侵略上皮。然而,它的原子本地化信号(NLS ) 没被识别。有另外的 KLF monopartite NLS (mNLS ) 和 C2H2 锌手指(ZF ) 的 KLF8 份额,哪个被显示了是为一些另外的 KLF 的 NLS。在这份报告,用指导 PCR 的 mutagenesis 和 immunofluorescent 显微镜学,我们显示出 mNLSs,任何单个 ZF 的删除,或变化的那混乱 Zn2+ 有约束力或联系 DNA 主题没影响 KLF8 的原子本地化。删除 > 然而,从 C 终点的 1.5 ZF 引起了 KLF8 的细胞质的累积。令人惊讶地,氨基酸(aa ) 的删除 151-200 区域几乎从原子核消除了 KLF8。有 PKC 禁止者的 S165A, K171E 或 K171R 变化,或处理导致了部分细胞质的累积。Co-immunoprecipitation 证明 KLF8 与 importin- 交往了,这个相互作用要求了 ZF 主题。aa 1-150 或 201-261 区域的删除独自没改变原子本地化。BrdU 加入和 cyclin D1 倡导者酶试金作为野类型的 KLF8 证明在原子本地化的 KLF8 异种有缺陷者不能支持 DNA 合成或 cyclin D1 倡导者激活。一起拿,这些结果建议 KLF8 有二 NLS,一包围 S165 和 K171 并且另外的是二双人脚踏车 ZF,它为 KLF8 原子本地化和它的细胞的功能的规定是批评的。Tina S Mehta Heng Lu Xianhui Wang Alison M Urvalek Kim-Hang H Nguyen Farah Monzur Jojo D Hammond Jameson Q Ma Jihe Zhao 2009Cell Research2009,19,9:10
14胡萝卜软腐果胶杆菌巴西亚种(Pectobacterium carotovorum subsp.brasiliense)引起的黄瓜细菌性软腐病在中国发生显示文摘2014—2015年,在中国山东、山西、河北、河南、辽宁等省的黄瓜茎叶上发生了毁灭性的细菌性软腐病,造成了黄瓜产业严重的经济损失。黄瓜叶片、茎、叶柄和果实表面出现流胶;茎基部呈深褐色进而出现湿腐。受侵染的黄瓜叶边缘出现黄斑和湿腐症状,并逐渐扩散至叶片中心。从受侵染组织中分离出45个细菌菌株,在形态学特性鉴定、生理学、生物化学和16Sr RNA基因序列分析的基础上,将病原体鉴定为胡萝卜软腐果胶杆菌(Pectobacterium carotovorum)。多位点序列分析(MLSA)证实,分离菌株是胡萝卜软腐果胶杆菌巴西亚种[Pectobacterium carotovorum subsp.brasiliensis(Pcb)],病原菌归入进化枝II。重新分离获得与原始菌株相同的菌株,证实了分离菌株的致病力。寄主范围测试表明,该菌株具有广泛的寄主范围。目前为止,这是对Pcb引起的黄瓜软腐病——这一对黄瓜生产具有重要经济影响的病害在中国乃至全球范围内的首次报道。冯志琴(译) meng x l chai a l shi y x xie x w ma z h li b j 2017中国植保导刊2017,37,7:10
15Mechanosignaling activation of TGFβmaintains intervertebral disc homeostasis显示文摘Intervertebral disc(IVD) degeneration is the leading cause of disability with no disease-modifying treatment.IVD degeneration is associated with instable mechanical loading in the spine, but little is known about how mechanical stress regulates nucleus notochordal(NC) cells to maintain IVD homeostasis. Here we report that mechanical stress can result in excessive integrin α_vβ_6-mediated activation of transforming growth factor beta(TGFβ), decreased NC cell vacuoles, and increased matrix proteoglycan production, and results in degenerative disc disease(DDD). Knockout of TGFβ type II receptor(TβRII) or integrin α_v in the NC cells inhibited functional activity of postnatal NC cells and also resulted in DDD under mechanical loading.Administration of RGD peptide, TGFβ, and α_vβ_6-neutralizing antibodies attenuated IVD degeneration. Thus,integrin-mediated activation of TGFβ plays a critical role in mechanical signaling transduction to regulate IVD cell function and homeostasis. Manipulation of this signaling pathway may be a potential therapeutic target to modify DDD.Qin Bian Lei Ma Amit Jain Janet L Crane Khaled Kebaish Mei Wan Zhengdong Zhang X Edward Guo Paul D Sponseller Cheryle A Seguin Lee H Riley Yongjun Wang Xu Cao 2017Bone Research2017,5,1:9
16杏仁核-海马环路参与抑郁症的发病机制显示文摘慢性应激常可引发抑郁症。临床资料显示,抑郁症病人的腹侧海马CA1区(vCA1)n体积减小。vCA1是否参与抑郁症的发病?vCA1通过什么环路起作用?其分子机制如何?是本文要回答的科学问题。研究者利用慢性不可预见性温和应激(CUMS),构建小鼠抑郁症模型。主要结果如下:(1)与对照组相比,CUMS组vCA1中表达c-Fos的兴奋性神经元的比例降低。采用化学遗传学方法激活vCA1内兴奋性神经元,可明显缓解抑郁样行为。因此,海马vCA1内兴奋性神经元的活性降低,介导抑郁症的发生。刘风雨(译) Ma H Li CY Wang JP 2021中国疼痛医学杂志2021,27,2:9
171型糖尿病患者的血糖控制,心脏自身免疫和心血管病的长期风险显示文摘血糖控制不佳与1型糖尿病(type 1diabetes mellitus,T1DM)患者的心血管病风险增加有关;然而,对T1DM的特异性机制知之甚少。在T1DM中,心肌损伤可诱发持续的心脏自身免疫。慢性高血糖症引起心肌损伤,高血糖诱导的心脏自身免疫可能导致长期心血管病并发症的可能性。Sousa GR Pober D Galderisi A Lv H Yu L Pereira AC Doria A Kosiborod M Lipes MA 刘莉 叶鹏 2019中华高血压杂志2019,27,1:8
18Advancing research diagnostic criteria for Alzheimer’s disease: the IWG-2 criteria显示文摘Bruno Dubois Howard H Feldman Claudia Jacova Harald Hampel José Luis Molinuevo Kaj Blennow Steven T DeKosky Serge Gauthier Dennis Selkoe Randall Bateman Stefano Cappa Sebastian Crutch Sebastiaan Engelborghs Giovanni B Frisoni Nick C Fox Douglas Galasko Ma 2014Lancet Neurology2014,,6:7
19Impact of tree diversity and environmental conditions on the survival of shrub species in a forest biodiversity experiment in subtropical China显示文摘Aims Although shrubs are an important component of forests,their role has not yet been considered in forest biodiversity experiments.In the biodiversity-ecosystem functioning(BEF)experiment with subtropical tree species in south-east China(BEF-China),we factorially combined tree with shrub species-diversity treatments.Here,we tested the hypotheses that shrub survival differs between the 10 planted shrub species,with lower survival rates of late-than early-successional species and is affected by environmental conditions,such as topography and top soil characteristics,as well as by biotic factors,represented by tree,shrub and herb layer characteristics.Methods We analyzed the survival of 42000 shrub individuals in 105 plots varying in tree and shrub species richness of the BEF-China project four years after planting.Shrub survival was analyzed with generalized linear mixed effects models at the level of individuals and with variance partitioning at the plot level.Random intercept and random slope models of different explanatory variables were compared with respect to the Bayesian Information Criterion(BIC).Important Findings Survival rates differed largely between the 10 shrub species,ranging from 26%to 91%for Ardisia crenata and Distylium buxifolium,respectively.Irrespective of species identity,single abiotic factors explained up to 5%of species survival,with a negative effect of altitude and slope inclination and a positive effect of the topsoil carbon to nitrogen ratio,which pointed to drought as the major cause of shrub mortality.In contrast,neither tree nor shrub richness affected shrub survival at this early stage of the experiment.Among the biotic predictors,only herb layer species richness and cover of the dominant fern species(Dicranopteris pedata)affected shrub survival.Overall,our models that included all variables could explain about 65%in shrub survival,with environmental variables being most influential,followed by shrub species identity,while tree species diversity(species richness and identity)and herb layer characteristics contributed much less.Thus,in this early stage of the experiment the biotic interactions among shrubs and between shrubs and trees have not yet overruled the impact of abiotic environmental factors.Bo Yang Ying Li Bingyang Ding Sabine Both Alexandra Erfmeier Werner Härdtle Keping Ma Bernhard Schmid Thomas Scholten Gunnar Seidler Goddert von Oheimb Xuefei Yang Helge Bruelheide 2017Journal of Plant Ecology2017,10,1:7
20Current status of ultrasound-guided surgery in the treatment of breast cancer显示文摘The primary goal of breast-conserving surgery(BCS) is to obtain tumour-free resection margins. Margins positive or focally positive for tumour cells are associated with a high risk of local recurrence, and in the case of tumour-positive margins, re-excision or even mastectomy are sometimes needed to achieve definite clear margins. Unfortunately, tumour-involved margins and re-excisions after lumpectomy are still reported in up to 40% of patients and additionally, unnecessary large excision volumes are described. A secondary goal of BCS is the cosmetic outcome and one of the main determinants of worse cosmetic outcome is a large excision volume. Up to 30% of unsatisfied cosm-etic outcome is reported. Therefore, the search for better surgical techniques to improve margin status, excision volume and consequently, cosmetic outcome has continued. Nowadays, the most commonly used localization methods for BCS of non-palpable breast cancers are wire-guided localization(WGL) and radioguided localization(RGL). WGL and RGL are invasive procedures that need to be performed pre-operatively with technical and scheduling difficulties. For palpable breast cancer, tumour excision is usually guided by tactile skills of the surgeon performing 'blind' surgery. One of the surgical techniques pursuing the aims of radicality and small excision volumes includes intraoperative ultrasound(IOUS). The best evidence available demonstrates benefits of IOUS with a significantly high proportion of negative margins compared with other localization techniques in palpable and non-palpable breast cancer. Additionally, IOUS is non-invasive, easy to learn and can centralize the tumour in the excised specimen with low amount of healthy breast tissuebeing excised. This could lead to better cosmetic results of BCS. Despite the advantages of IOUS, only a small amount of surgeons are performing this technique. This review aims to highlight the position of ultrasoundguided surgery for malignant breast tumours in the search for better oncological and cosmetic outcomes.José H Volders Max H Haloua Nicole MA Krekel Sybren Meijer Petrousjka M van den Tol 2016World Journal of Clinical Oncology2016,7,1:6
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