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1基于IMRT时代的第八版AJCC/UICC鼻咽癌临床分期建议显示文摘目的准确的分期系统对癌症的治疗至关重要。随着癌症分期和治疗方法的演变,需要不断评价分期的适用性和改进性。方法基于第7版AJCC/UICC分期回顾性分析香港和中国大陆2个肿瘤中心收治的1609例接受调强放射治疗的首诊无转移鼻咽癌患者临床资料,所有患者治疗前均行核磁共振分期评估。结果无其他T3、T4期解剖结构受侵患者中,伴有咀嚼肌间隙(翼内肌和/或翼外肌)侵犯、椎前肌侵犯及咽旁间隙侵犯的三组患者之间0s相近。伴广泛软组织(上述侵犯结构以外的软组织)受侵患者OS与伴有颅内侵犯或颅神经侵犯相似。仅2%患者锁骨上窝以上淋巴结转移者直径〉6cm,其0s率与下颈淋巴结转移者类似。用下颈(环状软骨尾侧缘水平以下)代替锁骨上窝并不影响N分期之间的风险差异性。采用推荐的T、N分期,T。N。、T。N,期0s相近。结论经AJCC/UICC分期筹备委员会审阅后,建议第8版分期应将翼内肌/翼外肌从T。降到T:期,增加椎前肌为L期,用下颈取代锁骨上窝,将淋巴结最大直径〉6cm合并归为N,期,将T。、N,期统一归为Ⅳ。期。这些改变不仅使得相邻分期间风险差异性更好,而且使得临床实践性与全球适用性之间达到最佳平衡。潘建基 Wai Tong Ng 宗井凤 Lucy L.K.Chan Brian O' Sullivan 林少俊 Henry C.K.Sze 陈韵彬 Horace C.W.Choi 郭巧娟 Wai Kuen Kan 肖友平 Xu Wei Quynh Thu Le Christine M.Glastonbury A.Dimtrios Colevas Randal S.Weber Jatin P.Shah Anne W.M.Lee 2016中华放射肿瘤学杂志2016,25,3:65
2Finding of ancient materials in Cathaysia and implication for the formation of Precambrian crust显示文摘在 Nanxiongarea 从帕拉片麻岩为 56 由岩屑形成的锆石标明日期的 U-Pb,北广东省,显示在 Cathaysiahinterland 的最近的 Neoproterozoic 沉积由众多的 Grenvillian 和 Neoarchaean 组成碎屑状的材料,以及 someMesoproterozoic 岩屑。次要的 Paleoarchaean (3.76 Ga ) 和 Mesoarchaean (3.0—3.2 Ga ) 锆石,是在华南的最旧的锆石,第一也在沉积被发现,建议卡赛西亚·布洛克可以包含很旧的材料。thirty-sevenzircons 的 Hf 同位素作文表明这些碎屑状的材料有不同起源。次要的锆石从产生从的岩浆结晶相对少年外壳,当大多数锆石的父母岩浆从古老的外壳被导出时。U-Pb 标明日期和这些锆石的 Hf 同位素分析的集成建议在 Cathaysia 块的少年外壳的产生主要发生在 2.5 点—2.6Ga。Mesoarchaean (3.0—3.3 Ga ) ,迟了的 Paleoproterozoic (~ 1 .8 Ga ) 和 Paleoarchaean (~ 3 .7 Ga ) 可以也是外壳的生长的重要事件。Grenvillian magmatism 是极其强烈的,但是它主要涉及与少年外壳的很少形成古老的外壳的部件再循环。~ 2 .1 Ga Hf 模型年龄的 Themarked 存在和有结晶化的锆石的缺席在~ 2 .1 Ga 变老建议许多锆石的父母岩浆可能从由 Neoarchaean 和迟了的 Paleoproterozoic 材料组成的混合来源被导出。YU JinHai Y S O'REILLY WANG LiJuan W L GRIFFIN JIANG ShaoYong WANG RuCheng XU XiSheng 2007Chinese Science Bulletin2007,52,1:47
3Prevention and treatment of hepatic artery thrombosis after liver transplantation显示文摘BACKGROUND: Hepatic artery thrombosis (HAT) which is a serious complication after orthotopic liver transplanta- tion (OLT) remains a significant cause of graft loss. The purpose of this study was to sum up our experiences in the prevention, diagnosis and management of HAT after liver transplantation. METHODS: From April 1993 to September 2003, a total of 198 patients underwent OLT at our hospital. The hepatic artery was anastomosed using 7/0 prolane with running continuous suture in 96 patients (group 1) and with inter- rupted suture in 102 (group 2). Ultrasonography was per- formed every day in two weeks after operation and selec- tively afterwards. RESULTS: HAT occurred in 6 patients (6.3%, 6/96) of group 1, and in 1 (1%, 1/102) of group 2 (x2=4.027, P= 0.045). Six patients received emergency thrombectomy, and 1 conservative therapy but died from tumor recurrence eventually. Biliary complication developed in 3 patients af- ter thrombectomy of whom 2 died of liver failure and one waited for retransplantation. In the other 3 patients after thrombectomy, 1 died of renal failure, and 2 survived. The mortality of patients with HAT was 57.1% (4/7). CONCLUSIONS: The technique of hepatic arterial anasto- mosis is the key factor for the prevention of HAT. Routine ultrasonography is very important in early detection of HAT after OLT. Biliary complication is a severe outcome secondary to HAT.Shu-Sen Zheng, Zhi-Yong Yu, Ting-Bo Liang, Wei-Lin Wang, Yan Shen, Min Zhang, Xiao Xu and Jian Wu Hangzhou, China Centre of Organ Transplantation and Department o Hepatobiliary and Pancreatic Surgery, First Affiliated Hospital of Medica College, Zhcjiang University, Hangzhou 310003, China 2004Hepatobiliary & Pancreatic Diseases International2004,3,1:18
4Association of Dietary Pattern during Pregnancy and Gestational Diabetes Mellitus: A Prospective Cohort Study in Northern China显示文摘Objective To examine the association of maternal dietary patterns during pregnancy with gestational diabetes mellitus(GDM) in northern China.Methods The dietary intakes of pregnant women were recorded twice by 24‐hour dietary recalls for three days prior to having been diagnosed with GDM, at 5‐15 and 24‐28 gestational weeks, respectively.GDM was diagnosed, and serum glycosylated hemoglobin(HbA1c) was measured at 24‐28 weeks.Dietary patterns were assessed by factor analysis. The association of the dietary pattern with GDM and HbA1c was examined by multiple logistic models.Results Of 753 participants, 64(8.5%) were diagnosed with GDM. Four dietary patterns were identified: Western pattern(dairy, baked/fried food and white meat), traditional pattern(light‐colored vegetables, fine grain, red meat and tubers), mixed pattern(edible fungi, shrimp/shellfish and red meat)and prudent pattern(dark‐colored vegetables and deep‐sea fish). Compared with the prudent pattern,both the Western pattern and the traditional pattern were associated with an increased risk of GDM(a OR = 4.40, 95% CI: 1.58‐12.22; a OR = 4.88, 95% CI: 1.79‐13.32) and a high level of HbA1c(a OR = 12.37,95% CI: 1.47‐103.91; a OR = 26.23, 95% CI: 2.54‐270.74). Compared to the lowest quartile(Q), Q3 of the Western pattern scores and Q3‐Q4 of the traditional pattern scores were associated with a higher risk of GDM.Conclusion The consumption of the Western pattern or the traditional pattern during pregnancy may increase the risk of GDM.DU Hong Yi JIANG Hong O Karmin CHEN Bo XU Lin Ji LIU Shu Ping YI Jian Ping HE Geng Sheng QIAN Xu 2017Biomedical and Environmental Sciences2017,30,12:16
5Steroid receptor coactivator 3 regulates autophagy in breast cancer cells through macrophage migration inhibitory factor显示文摘SRC-3/AIB1 (在乳癌 1 的类固醇受体激活剂 3/amplified ) 是在癌症病人贡献药抵抗和差的没有疾病的幸存的发展的真 oncogene。Autophagy 也是让肿瘤 suppressor 工作的重要房间死亡机制。在这研究,我们识别了巨噬细胞移植禁止的因素(MIF ) 作为 SRC-3 的新奇目标基因并且在房间幸存表明了它的重要性。明确地,我们证明 MIF 是 autophagic 房间死亡的强壮的 suppressor。我们进一步证明接着, MIF 的抑制导致了 autophagic 房间死亡,提高了 chemosensitivity 并且禁止了在一个异种皮移植老鼠 tumorigenesis 模型的 tumorigenesis。我们的学习证明 MIF 表示的那条规定和 autophagic 房间死亡的抑制是 SRC-3 由贡献增加的 chemoresistance 和 tumorigenicity 的有势力机制。Mei-Yi Wu Junjiang Fu Jianming Xu Bert W O'MaUey Ray-Chang Wu 2012Cell Research2012,22,6:12
6Highly efficient derivation of ventricular cardiomyocytes from induced pluripotent stem cells with a distinct epigenetic signature显示文摘从 pluripotent 干细胞导出的 Cardiomyocytes 能在药测试,疾病建模和基于房间的治疗被使用。没有 procardiogenic 生长因素,然而,从 pluripotent 干细胞的 cardiomyogenesis 的效率通常是低的,产生 cardiomyocyte 人口是异构的。这里,我们证明导致的 pluripotent 干细胞( iPSCs )能从鼠科的室的 myocytes ( VM )被导出,并且与从各种各样的体的房间类型导出的 iPSCs 的另外的报告一致,自发地作为与遗传上匹配的胚胎的干细胞(转换字符)或 iPSCs 相比区分 cardiomyocytes 进跳动的显著地更高的倾向从尾巴尖端成纤维细胞导出的 导出VM 的 iPSCs ( ViPSCs )展览。惊人地,导出 ViPSC 的 cardiomyocytes 显示的多数室的显型。在 ViPSCs 的提高的室的 myogenesis 在区别的早阶段经由心血管的祖先的增加的数字被调停。以便从 ViPSCs 调查提高的室的 myogenesis 的机制,我们执行了全球基因表示和 DNA methylation 分析,它揭示了可以涉及在 pluripotent 干细胞指定 VM 命运的不同 epigenetic 签名。Huansheng Xu B Alexander Yi Hao Wu Christoph Bock Hongcang Gu Kathy O Lui Joo-Hye C Park Ying Shao Alyssa K Riley Ibrahim J Domian Erding Hu Robert Willette John Lepore Alexander Meissner Zhong Wang Kenneth R Chien 2012Cell Research2012,22,1:7
7The experimental study of genetic engineering human neural stem cells mediated by lentivirus to express multigene显示文摘Cai PQ Tang X Lin YQ Martin O Sun GY Xu L Yang YK Zhou TH 2006中国生物学文摘2006,20,5:6
8LRP6 in mesenchymal stem cells is required for bone formation during bone growth and bone remodeling显示文摘Lipoprotein receptor-related protein 6(LRP6) plays a critical role in skeletal development and homeostasis in adults. However, the role of LRP6 in mesenchymal stem cells(MSCs), skeletal stem cells that give rise to osteoblastic lineage, is unknown. In this study, we generated mice lacking LRP6 expression specifically in nestin1MSCs by crossing nestin-Cre mice with LRP6floxmice and investigated the functional changes of bone marrow MSCs and skeletal alterations. Mice with LRP6 deletion in nestin1cells demonstrated reductions in body weight and body length at 1 and 3 months of age. Bone architecture measured by microCT(mCT) showed a significant reduction in bone mass in both trabecular and cortical bone of homozygous and heterozygous LRP6mutant mice. A dramatic reduction in the numbers of osteoblasts but much less significant reduction in the numbers of osteoclasts was observed in the mutant mice. Osterix1osteoprogenitors and osteocalcin1osteoblasts significantly reduced at the secondary spongiosa area, but only moderately decreased at the primary spongiosa area in mutant mice. Bone marrow MSCs from the mutant mice showed decreased colony forming, cell viability and cell proliferation. Thus, LRP6 in bone marrow MSCs is essential for their survival and proliferation, and therefore, is a key positive regulator for bone formation during skeletal growth and remodeling.Changjun Li Bart O Williams Xu Cao Mei Wan 2014Bone Research2014,2,1:6
9巨峰和无核早红葡萄在越南谅山试种观察显示文摘[目的]观察巨峰、无核早红葡萄在越南谅山省的引种表现,为其在越南推广种植提供参考依据.[方法]2009年春从中国南宁引入巨峰、无核早红两个鲜食葡萄品种在越南谅山省试种,调查其枝蔓生长量、物候期、果实性状、产量等相关指标.[结果]至第1年抚育冬季,巨峰葡萄枝蔓总长234.5 cm,上架茎粗0.84 cm;无核早红葡萄枝蔓总长294.1 cm,上架茎粗0.86 cm.在物候期方面,巨峰葡萄从萌芽至果实成熟需141~151 d,表现中熟;无核早红从萌芽至果实成熟需142~151 d,未表现其应有的早熟特性.在果实性状方面,巨峰葡萄2010~2012年3年平均单果重8.9 g,种子数1.04粒,可溶性固形物(TSS)含量17.5%;无核早红葡萄2010~2012年3年平均单果重6.8 g,TSS含量13.9%.在产量方面,巨峰葡萄2010~2012年产量分别为13.69、17.50和16.24 t/ha;无核早红葡萄2010~2012年产量分别为10.81、16.02和20.92t/ha.[结论]巨峰葡萄在越南谅山省种植表现丰产稳产优质,具有较好的适栽性,可大面积推广种植;无核早红葡萄表现丰产稳产,但表现低糖低酸,极易裂果,着色困难,不宜在越南大面积发展.黄江流 PHAM Thi Thang 罗瑞鸿 NGUYN Thi Hà 吕荣华 LUONG Dǎng Ning CHU Vǎn DUòng NGUYN Manh Tòng 彭宏祥 Ly Ming Nguyet LU'O'NG i Thuy CHU Xun Tien VI Vǎn Dúc NGUYN Duy Dng Ly Dúc Khiêm 熊俏 2014南方农业学报2014,45,7:5
10Uptake and mitochondrial dysfunction of alpha-synuclein in human astrocytes, cortical neurons and fibroblasts显示文摘The accumulation and aggregation of alpha-synuclein(α-syn)in several tissue including the brain is a major pathological hallmark in Parkinson’s disease(PD).In this study,we show that α-syn can be taken up by primary human cortical neurons,astrocytes and skin-derived fibroblasts in vitro.Our findings that brain and peripheral cells exposed to α-syn can lead to impaired mitochondrial function,leading to cellular degeneration and cell death,provides additional evidence for the involvement of mitochondrial dysfunction as a mechanism of toxicity of α-syn in human cells.Nady Braidy Wei-Ping Gai Ying Hua Xu Perminder Sachdev Gilles J Guillemin Xing-Mai Jiang J William O Ballard Martin P Horan Zhi Ming Fang Beng H Chong Daniel Kam Yin Chan 2013Translational Neurodegeneration2013,2,1:4
11Roles of P-glycoprotein and multidrug resistance protein in transporting para-aminosalicylic acid and its N-acetylated metabolite in mice brain显示文摘目的: Para-aminosalicylic 酸(舞步) 在导致 manganism 的 neurotoxicity (manganism ) 的处理是有效的。在这研究,我们在通过血大脑障碍搬运舞步和它的 N-acetylated 代谢物 AcPAS 调查了 P-glycoprotein (MDR1a ) 和 multidrug 抵抗蛋白质(MRP ) 的角色。Lan HONG Cong XU Stefanie O'NEAL Hui-chang BI Min HUANG Wei ZHENG Su ZENG 2014Acta Pharmacologica Sinica2014,35,12:4
12Effects of luteinizing hormone and androgen on the development of rat progenitor Leydig cells in vitro and in vivo显示文摘祖先 Leydig 房间从干细胞被导出。祖先 Leydig 房间的增长和区别显著地在发身期间贡献 Leydig 房间数字。然而,这些过程的规定仍然保持不清楚。现在的学习的目的是决定 luteinizing 荷尔蒙(LH ) 或雄激素是否贡献祖先 Leydig 房间的增长和区别。Fourteen-day-old 男 Sprague-Dawley 老鼠与 NalGlu 被对待 7 天,它是一个释放 gonadotropin 荷尔蒙对手,到在垂体并且这样减少 LH 的分泌物,在睾丸的雄激素。老鼠与 LH 或 7 α 被共同管理; -methyl-nortestosterone (MENT ) 是对由 5 α 的新陈代谢抵抗的雄激素, -reductase 1 在祖先 Leydig 房间,和 LH 或雄激素的随后的效果被测量。3 H-Thymidine 静脉内地也被注入老鼠在祖先 Leydig 房间学习 thymidine 加入。祖先 Leydig 房间被检验。NalGlu 管理由 83 % 减少了祖先 Leydig 房间增长;。另外, LH 或 MENT 处理恢复了 Leydig 房间 proliferative 能力到 73 %或 50 %控制,分别地。增长相关的基因的送信人 RNA 层次用即时 PCR 被测量。Igf1, Lifr, Pdgfra, Bcl2, Ccnd3 和 Pcna 的表示层次是由 MENT 的 upregulated,并且 Pdgfra, Ccnd3 和 Pcna 的那些是由 LH 的 upregulated。LH 和 MENT 在 vitro 刺激了祖先 Leydig 房间的区别。我们断定 LH 和 MENT 涉及调整祖先 Leydig 房间的发展。Jing-Jing Guo Xue Ma Claire Q F Wang Yu-Fei Ge Qing-Quan Lian Dianne O Hard Yu-Fei Zhang Qiang Dong Yun-Fei Xu Ren-Shan Ge 2013Asian Journal of Andrology2013,15,5:4
13Could wastewater analysis be a useful tool for China?——A review显示文摘Analysing wastewater samples is an innovative approach that overcomes many limitations of traditional surveys to identify and measure a range of chemicals that were consumed by or exposed to people living in a sewer catchment area. First conceptualised in 2001, much progress has been made to make wastewater analysis(WWA) a reliable and robust tool for measuring chemical consumption and/or exposure. At the moment, the most popular application of WWA, sometimes referred as sewage epidemiology, is to monitor the consumption of illicit drugs in communities around the globe, including China. The approach has been largely adopted by law enforcement agencies as a device to monitor the temporal and geographical patterns of drug consumption. In the future, the methodology can be extended to other chemicals including biomarkers of population health(e.g. environmental or oxidative stress biomarkers, lifestyle indicators or medications that are taken by different demographic groups) and pollutants that people are exposed to(e.g. polycyclic aromatic hydrocarbons,perfluorinated chemicals, and toxic pesticides). The extension of WWA to a huge range of chemicals may give rise to a field called sewage chemical-information mining(SCIM) with unexplored potentials. China has many densely populated cities with thousands of sewage treatment plants which are favourable for applying WWA/SCIM in order to help relevant authorities gather information about illicit drug consumption and population health status. However, there are some prerequisites and uncertainties of the methodology that should be addressed for SCIM to reach its full potential in China.Jianfa Gao Jake O'Brien Foon Yin Lai Alexander L.N.van Nuijs Jun He Jochen F.Mueller Jingsha Xu Phong K.Thai 2015Journal of Environmental Sciences2015,27,1:4
14The amazing potential of fungi:50 ways we can exploit fungi industrially显示文摘Fungi are an understudied,biotechnologically valuable group of organisms.Due to the immense range of habitats that fungi inhabit,and the consequent need to compete against a diverse array of other fungi,bacteria,and animals,fungi have developed numerous survival mechanisms.The unique attributes of fungi thus herald great promise for their application in biotechnology and industry.Moreover,fungi can be grown with relative ease,making production at scale viable.The search for fungal biodiversity,and the construction of a living fungi collection,both have incredible economic potential in locating organisms with novel industrial uses that will lead to novel products.This manuscript reviews fifty ways in which fungi can potentially be utilized as biotechnology.We provide notes and examples for each potential exploitation and give examples from our own work and the work of other notable researchers.We also provide a flow chart that can be used to convince funding bodies of the importance of fungi for biotechnological research and as potential products.Fungi have provided the world with penicillin,lovastatin,and other globally significant medicines,and they remain an untapped resource with enormous industrial potential.Kevin D.Hyde Jianchu Xu Sylvie Rapior Rajesh Jeewon Saisamorn Lumyong Allen Grace T.Niego Pranami D.Abeywickrama Janith V.S.Aluthmuhandiram Rashika S.Brahamanage Siraprapa Brooks Amornrat Chaiyasen K.W.Thilini Chethana Putarak Chomnunti Clara Chepkirui Boontiya Chuankid Nimali I.de Silva Mingkwan Doilom Craig Faulds Eleni Gentekaki Venkat Gopalan Pattana Kakumyan Dulanjalee Harishchandra Hridya Hemachandran Sinang Hongsanan Anuruddha Karunarathna Samantha C.Karunarathna Sehroon Khan Jaturong Kumla Ruvishika S.Jayawardena Jian-Kui Liu Ningguo Liu Thatsanee Luangharn Allan Patrick G.Macabeo Diana S.Marasinghe Dan Meeks Peter E.Mortimer Peter Mueller Sadia Nadir Karaba N.Nataraja Sureeporn Nontachaiyapoom Meghan O’Brien Watsana Penkhrue Chayanard Phukhamsakda Uma Shaanker Ramanan Achala R.Rathnayaka Resurreccion B.Sadaba Birthe Sandargo Binu C.Samarakoon Danushka S.Tennakoon Ramamoorthy Siva Wasan Sriprom T.S.Suryanarayanan Kanaporn Sujarit Nakarin Suwannarach Thitipone Suwunwong Benjarong Thongbai Naritsada Thongklang Deping Wei S.Nuwanthika Wijesinghe Jake Winiski Jiye Yan Erandi Yasanthika Marc Stadler 2019Fungal Diversity2019,,4:3
15Shoot and root traits in drought tolerant maize(Zea mays L.) hybrids显示文摘This study aimed to investigate the differences in shoot and root traits, and water use and water use efficiency(WUE) in drought tolerant(DT) maize(Zea mays L.) hybrids under full and deficit irrigated conditions. A two-year greenhouse study was conducted with four hybrids(one conventional hybrid, 33D53AM, two commercial DT hybrids, P1151 AM, N75H, and an experimental hybrid, Exp HB) grown under two water regimes(I_(100) and I_(50), referring to 100 and 50% of evapotranspiration requirements). Under water stress, the hybids P1151 AM, N75, and Exp HB showed more drought tolerance and had either greater shoot dry weight or less dry weight reduction than the conventional hybrid(33 D53 AM). However, these three hybrids responded to water stress using different mechanisms. Compared with the conventional hybrid, the two commercial DT hybrids(P1151 AM and N75H) had a smaller leaf area, shoot dry weight, and root system per plant. As a result, these hybrids used less water but had a higher WUE compared with the conventional hybrid. In contrast, the experimental hybrid(ExpHB) produced more shoot biomass by silking stage at both irrigation levels than all other hybrids, but it had relatively lower WUE. The hybrids demonstrated different drought response mechanisms that may require different irrigation management strategies. More investigation and validation are needed under field conditions and in different soil types.ZHAO Jin XUE Qing-wu Kirk E Jessup HOU Xiao-bo HAO Bao-zhen Thomas H Marek XU Wen-wei Steven R Evett Susan A O'Shaughnessy David K Brauer 2018Journal of Integrative Agriculture2018,17,5:3
16Electrochemical Lithium Storage Performance of Molten Salt Derived V_(2)SnC MAX Phase显示文摘MAX phases are gaining attention as precursors of two-dimensional MXenes that are intensively pursued in applications for electrochemical energy storage.Here,we report the preparation of V_(2)SnC MAX phase by the molten salt method.V_(2)SnC is investigated as a lithium storage anode,showing a high gravimetric capacity of 490 mAh g−1 and volumetric capacity of 570 mAh cm^(−3) as well as superior rate performance of 95 mAh g^(−1)(110 mAh cm^(−3))at 50 C,surpassing the ever-reported performance of MAX phase anodes.Sup-ported by operando X-ray diffraction and density functional theory,a charge storage mechanism with dual redox reaction is proposed with a Sn-Li(de)alloying reaction that occurs at the edge sites of V_(2)SnC particles where Sn atoms are exposed to the electrolyte followed by a redox reaction that occurs at V_(2)C layers with Li.This study offers promise of using MAX phases with M-site and A-site elements that are redox active as high-rate lithium storage materials.Youbing Li Guoliang Ma Hui Shao Peng Xiao Jun Lu Jin Xu Jinrong Hou Ke Chen Xiao Zhang Mian Li Per OÅPersson Lars Hultman Per Eklund Shiyu Du Zhifang Chai Zhengren Huang Na Jin Jiwei Ma Ying Liu Zifeng Lin Qing Huang 2021Nano-Micro Letters2021,13,10:2
17Risk stratification in symptomatic intracranial atherosclerotic disease with conventional vascular risk factors and cerebral haemodynamics显示文摘Background and purpose Symptomatic intracranial atherosclerotic stenosis(sICAS)is associated with a considerable risk of recurrent stroke despite contemporarily optimal medical treatment.Severity of luminal stenosis in sICAS and its haemodynamic significance quantified with computational fluid dynamics(CFD)models were associated with the risk of stroke recurrence.We aimed to develop and compare stroke risk prediction nomograms in sICAS,based on vascular risk factors and these metrics.Methods Patients with 50%-99%sICAS confirmed in CT angiography(CTA)were enrolled.Conventional vascular risk factors were collected.Severity of luminal stenosis in sICAS was dichotomised as moderate(50%-69%)and severe(70%-99%).Translesional pressure ratio(PR)and wall shear stress ratio(WSSR)were quantified via CTA-based CFD modelling;the haemodynamic status of sICAS was classified as normal(normal PR&WSSR),intermediate(otherwise)and abnormal(abnormal PR&WSSR).All patients received guideline-recommended medical treatment.We developed and compared performance of nomograms composed of these variables and independent predictors identified in multivariate logistic regression,in predicting the primary outcome,recurrent ischaemic stroke in the same territory(SIT)within 1 year.Results Among 245 sICAS patients,20(8.2%)had SIT.The D2H2A nomogram,incorporating diabetes,dyslipidaemia,haemodynamic status of sICAS,hypertension and age≥50 years,showed good calibration(P for Hosmer-Lemeshow test=0.560)and discrimination(C-statistic 0.73,95%CI 0.60 to 0.85).It also had better performance in risk reclassification and provided larger net benefits in decision curve analysis,compared with nomograms composed of conventional vascular risk factors only,and plus the severity of luminal stenosis in sICAS.Sensitivity analysis in patients with anterior-circulation sICAS showed similar results.Conclusions The D2H2A nomogram,incorporating conventional vascular risk factors and the haemodynamic significance of sICAS as assessed in CFD models,could be a useful tool to stratify sICAS patients for the risk of recurrent stroke under contemporarily optimal medical treatment.Xuan Tian Hui Fang Linfang Lan Hing Lung Ip Jill Abrigo Haipeng Liu Lina Zheng Florence S Y Fan Sze Ho Ma Bonaventure Ip Bo Song Yuming Xu Jingwei Li Bing Zhang Yun Xu Yannie O Y Soo Vincent Mok Ka Sing Wong Thomas W Leung Xinyi Leng 2023Stroke & Vascular Neurology2023,8,1:2
18Changes in vegetation and landscape patterns with altered river water-flow in aridWest China显示文摘KONG W SUN O J XU W 2009Journal of Arid Environmets2009,73,3:1
19Indifference Pricing of Weather Derivatives显示文摘Xu W Odening M Musshoff O 2008American Journal of Agricultural Economics2008,90,4:1
20Local angiotensin II aggra- vates cardiac remodeling in hypertension 显示文摘Xu J Carretero O A Liao T D 2010Am J Physiol Heart Circ Physio12010,299,5:1
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