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1359篇 您的检索式:作者名="ZHAO Duan"
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1Analysis of status and countermeasures of cancer incidence and mortality in China显示文摘Cancer is the leading cause of human deaths in the world and produces serious economic burdens. On September 12, 2018, the academic journal A Cancer Journal for Clinicians published an article about the latest statistics of cancers worldwide, which provided a status report on the global burden of 36 cancers in 185 countries worldwide. Cancer has also become a serious public health problem in China and caused more and more attention of the government and people in recent years. This review analyzes the incidence, mortality and prevalent trend of cancers in China, discusses the reasons behind this status, and reviews the potential countermeasures for cancer prevention and control in China.Chunchun Wu Mengna Li Hanbing Meng Yukun Liu Weihong Niu Yao Zhou Ran Zhao Yumei Duan Zhaoyang Zeng Xiaoling Li Guiyuan Li Wei Xiong Ming Zhou 2019Science China(Life Sciences)2019,62,5:175
22018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu 2018Science Bulletin2018,63,23:54
3Berberine protects rat heart from ischemia/ reperfusion injury via activating JAK2/STAT3 signaling and attenuating endoplasmic reticulum stress显示文摘目的: Berberine (BBR ) ,从根茎 coptidis 孤立的导出 isoquinoline 的碱,施加 cardioprotective 效果。因为 endoplasmic 蜂窝胃(嗯)应力在导致的心肌的 ischemia/reperfusion ( MI/R )起一个枢轴的作用 apoptosis ,检验 BBR 的保护的效果是否源于 modulating 有趣嗯在 MI/R 损害期间强调层次,并且在这 process.Methods 定义发信号的机制:雄的老鼠与 BBR 被对待( 200 mg· ; kg −1·d−1, ig )为 2 个星期,然后使外科遭到了到 MI/R 。心脏的尺寸和功能用 echocardiography 被估计。心肌的梗塞尺寸和 apoptosis 被检验。在心织物的全部的浆液 LDH 层次和 CK 活动, superoxide 生产, MDA 层次和抗氧化剂草皮活动是坚定的。一在里面 vitro 学习在胚胎的导出心肌层的房间 H9C2 暴露了到模仿的 ischemia/reperfusion (先生) 的有教养的老鼠上被执行。apoptotic 的表达式,嗯压力相关、发信号的蛋白质用西方的污点 analyses.Results 被估计: 有 BBR 的预告的处理显著地减少了 MI/R-induced 心肌的梗塞尺寸,改进心脏的函数,和压制的心肌的 apoptosis 和氧化损坏。而且,有 BBR 的预告的处理压制了 MI/R-induced 嗯应力,证实了由下面调整心肌的津贴和 eIF2α 的 phosphorylation 层次;并且在心纸巾的 ATF4 和砍的表示。有 BBR 的预告的处理也激活与 AG490 在心纸巾,和合作处理表明小径的 JAK2/STAT3,一个特定的 JAK2/STAT3 禁止者,在 MI/R-induced 上堵住了 BBR 的 BBR,而且抑制的不仅保护的效果嗯应力。在 H9C2 房间,有 BBR 的处理(50 μ mol/L ) 显著地减少的导致先生的房间 apoptosis,氧化应力并且嗯应力,被 transfection 与 JAK2 siRNA.Conclusion 废除, BBR 改善在由激活表明小径和 attenuating 的 AK2/STAT3 的老鼠的 MI/R 损害嗯导致压力的 apoptosis。Guo-long ZHAO Li-ming YU Wen-li GAO Wei-xun DUAN Bo JIANG Xu-dong LIU Bin ZHANG Zhen-hua LIU Meng-en ZHAI Zhen-xiao JIN Shi-qiang YU Yun WANG 2016Acta Pharmacologica Sinica2016,37,3:47
4Ex vivo liver resection followed by autotransplantation for end-stage hepatic alveolar echinococcosis显示文摘为有结束阶段的病人的背景肝的牙槽的包虫病(AE ) ,因此,在 vivo,肝的深奥部分的切除术通常是很困难的 allogenic 肝移植被显示。然而,我们假设为选择专利,为深奥纸巾和肝自体移植的彻底的消除的前 vivo 肝切除术可以为我们介绍了的临床的 cure.Methods 提供一个机会一个24岁的孩子与 hepatectomy 被对待的有巨大的肝的 AE 损害的女人,深奥织物和肝的自体移植的前 vivo 切除术。耐心的有的中等黄疸和包含了片断的先进肝的 AE 损害,,,,,并且 retrohepatic 晚辈静脉 cava。侧面的片断(并且) 左,肝在它的体积与超过 1000 ml 仍然保持正常。没有 extrahepatic 转移(例如到肺或大脑) 能被发现。作为治疗的第一步, X 光检查指导了经皮的 transhepatic cholangiodrainage (PTCD ) 在片断并且独立为胆汁排水被执行两次直到她的浆液总数 bilirubin 从 236 ~ 88 mol/L 逐渐地减少了。全部的肝切除术然后被执行,由扩大恰好肝的 trisegmentectomy 列在后面,当她的 hemodynamics 参数是稳定的时,全部 retrohepatic 静脉 cava 通过手术在团体被移开。两 veino-veinous 绕过也不暂时的 intracorporeal cavo-caval 或 porto-caval 分流在 5.7 小时的 anhepatic 阶段期间被使用。左肝的仍然是的 AE 免费的侧面的片断在 situ 被重新植入。左肝的静脉直接被吻合对 suprahepatic 晚辈静脉 cava 端对端由于有 AE 全部的渗入的 retrohepatic 晚辈静脉 cava 的缺乏。因为补偿 retroperitoneal porto-caval 担保循环发展了,没有任何 haemodynamics problems.Results ,我们在操作以后在60天的后面起来期间在肾的静脉水平围住仍然是的 infrahepatic 晚辈静脉 cava ,病人作为一个激进分子除了温和地提高的浆液总数 bilirubin.Conclusions 有好恢复途径,在一种情况中的前 vivo 肝切除术和肝自体移植为结束阶段的治疗显示出一个最佳的潜力肝的 AE 。对它的指示的严格的依从,病人的容器的评估 pre-operatively,并且精确外科的技术是钥匙改进病人的预后。WEN Hao DONG Jia-hong ZHANG Jin-hui ZHAO Jin-ming SHAO Ying-mei DUAN Wei-dong LIANG Yu-rong JI Xue-wen TAI Qin-wen Tuerganali Aji LI Tao 2011Chinese Medical Journal2011,,18:38
5Deferoxamine promotes recovery of traumatic spinal cord injury by inhibiting ferroptosis显示文摘Ferroptosis is an iron-dependent novel cell death pathway. Deferoxamine, a ferroptosis inhibitor, has been reported to promote spinal cord injury repair. It has yet to be clarified whether ferroptosis inhibition represents the mechanism of action of Deferoxamine on spinal cord injury recovery. A rat model of Deferoxamine at thoracic 10 segment was established using a modified Allen's method. Ninety 8-week-old female Wistar rats were used. Rats in the Deferoxamine group were intraperitoneally injected with 100 mg/kg Deferoxamine 30 minutes before injury. Simultaneously, the Sham and Deferoxamine groups served as controls. Drug administration was conducted for 7 consecutive days. The results were as follows:(1) Electron microscopy revealed shrunken mitochondria in the spinal cord injury group.(2) The Basso, Beattie and Bresnahan locomotor rating score showed that recovery of the hindlimb was remarkably better in the Deferoxamine group than in the spinal cord injury group.(3) The iron concentration was lower in the Deferoxamine group than in the spinal cord injury group after injury.(4) Western blot assay revealed that, compared with the spinal cord injury group, GPX4, xCT, and glutathione expression was markedly increased in the Deferoxamine group.(5) Real-time polymerase chain reaction revealed that, compared with the Deferoxamine group, mRNA levels of ferroptosis-related genes Acyl-CoA synthetase family member 2(ACSF2) and iron-responsive element-binding protein 2(IREB2) were up-regulated in the Deferoxamine group.(6) Deferoxamine increased survival of neurons and inhibited gliosis. These findings confirm that Deferoxamine can repair spinal cord injury by inhibiting ferroptosis. Targeting ferroptosis is therefore a promising therapeutic approach for spinal cord injury.Xue Yao Yan Zhang Jian Hao Hui-Quan Duan Chen-Xi Zhao Chao Sun Bo Li Bao-You Fan Xu Wang Wen-Xiang Li Xuan-Hao Fu Yong Hu Chang Liu Xiao-Hong Kong Shi-Qing Feng 2019Neural Regeneration Research2019,14,3:35
6Goal-directed Fluid Therapy May Improve Hemodynamic Stability of Parturient with Hypertensive Disorders of Pregnancy Under Combined Spinal Epidural Anesthesia for Cesarean Delivery and the Well-being of Newborns显示文摘Wei Xiao Qing-Fang Duan Wen-Ya Fu Xin-Zuo Chi Feng-Ying Wang Da-Qing Ma Tian-Long Wang Lei Zhao 2015Chinese Medical Journal2015,,14:35
7Pharmacokinetics of sufentanil administered by target-controlled infusion in Chinese surgical patients显示文摘背景控制目标的注入(TCI ) 最近在临床的实践被开发了并且成功地实现了。这研究被进行决定 TCI 的 pharmacokinetics 在中国外科的 patients.Methods 管理了 sufentanil sufentanil 的 pharmacokinetics 在 12 成年人被调查 23-76 年,病人们在一般麻醉下面为延长外科安排了。麻药正式就职与管理的 propofol, rocuronium 和 TCI 被执行 sufentanil 为 sufentanil 的目标效果地点集中瞄准 4 或 6 ng/ml。Sufentanil TCI 持续了 30 分钟。经常的动脉的血样品(1.5 ml ) 在 sufentanil TCI 以后被拉在期间并且直到 24 个小时。血浆 sufentanil 集中被液体层析双人脚踏车团 spectrometry 测量;集体 spectrometry 的敏感的限制是 5 pg/ml。数据与 TCI 的 pharmacokinetics 管理了的非线性的混合效果模型 program.Results 被分析 sufentanil 被一个三分隔空间的模型最佳地与下列参数描述:分发(V1 ) 的中央体积 = 5.4 L,分发在的体积不变(Vdss )= 195.4 L,全身的清理(Cl1 )= 1.10 L/min,和消除半衰期(t1/2 )= 271.8 分钟。年龄和性影响了 pharmacokinetic 参数。快速的分发清理(Cl2 ) 否定地与耐心的年龄,和体积被相关慢慢地, equilibrating 分隔空间(V3 ) 断然与年龄被相关。Cl2 和卷很快, equilibrating 分隔空间(V2 ) 被性与比女病人显示出 Cl2 和 V2 的更高的值的男病人一起影响。没有身体重量,瘦身体团,血浆白朊,或有任何 TCI 的 pharmacokinetics 管理了的 pharmacokinetic 参数 studied.Conclusions 的 sufentanil 的目标效果地点集中的关系在中国病人的 sufentanil 能被一个三分隔空间的模型足够地描述。Pharmacokinetics 适应了单个病人应该改进 TCI 系统的精确性。ZHAO Yan WU Xin-min DUAN Jing-li SHENG Xiao-yan LIU Wei LU Wei ZHANG Li-ping XU Chuan-ya 2009Chinese Medical Journal2009,,3:31
8Network Pharmacology Evaluation Method Guidance-Draft显示文摘Foreword Note:Some of the document contents may involve certain patents,the identification of which is not the responsibility of the institution that releases the document.Main drafting organizations:Tsinghua University,Specialty Committee of Network Pharmacology of World Federation of Chinese Medicine Societies(WFCMS).Shao Li Yi-Tao Chen Qing-Yang Ding Jian-Ye Dai Xian-Chun Duan Yuan-Jia Hu Xin-Xing Lai Qing-Fei Liu Ming Niu Rong-Wu Xiang Zheng Xiang Hai-Yu Xu Xin Wang Hong-Jun Yang Kuo Yang Ming Yang Hai-Yang Yu Bo Zhang Peng Zhang Qian-Ru Zhang Hui-Hui Zhao Jing Zhao 2021World Journal of Traditional Chinese Medicine2021,7,1:32
9Geological Characteristics and Zircon U-Pb Dating of Volcanic Rocks from the Beizhan Iron Deposit in Western Tianshan Mountains, Xinjiang, NW China显示文摘The Beizhan large iron deposit located in the east part of the Awulale metallogenic belt in the western Tianshan Mountains is hosted in the Unit 2 of the Dahalajunshan Formation as lens, veinlets and stratoid, and both of the hanging wall and footwall are quartz-monzonite; the dip is to the north with thick and high-grade ore bodies downwards. Ore minerals are mainly magnetite with minor sulfides, such as pyrite, pyrrhotite, chalcopyrite and sphalerite. Skarnization is widespread around the ore bodies, and garnet, diopside, wollastonite, actinolite, epidote, uralite, tourmaline sericite and calcite are ubiquitous as gangues. Radiating outwards from the center of the ore body the deposit can be classified into skarn, calcite, serpentinite and marble zones. LA-ICP-MS zircon U-Pb dating of the rhyolite and dacite from the Dahalajunshan Formation indicates that they were formed at 301.3±0.8 Ma and 303.7±0.9 Ma, respectively, which might have been related to the continental arc magmatism during the late stage of subduction in the western Tianshan Mountains. Iron formation is genetically related with volcanic eruption during this interval. The Dahalajunshan Formation and the quartz-monzonite intrusion jointly control the distribution of ore bodies. Both ore textures and wall rock alteration indicate that the Beizhan iron deposit is probably skarn type.ZHANG Zuoheng HONG Wei JIANG Zongsheng DUAN Shigang XU Lingang LI Fengming GUO Xincheng ZHAO Zhengang 2012Acta Geologica Sinica(English Edition)2012,86,3:29
10Stability of SARS Coronavirus in Human Specimens and Environment and Its Sensitivity to Heating and UV Irradiation显示文摘The causal agent for SARS is considered as a novel coronavirus that has never been described both in human and animals previously. The stability of SARS coronavirus in human specimens and in environments was studied. Methods Using a SARS coronavirus strain CoV-P9,which was isolated from pharyngeal swab of a probable SARS case in Beijing, its stability in mimic human specimens and in mimic environment including surfaces of commonly used materials or in household conditions, as well as its resistances to temperature and UV irradiation were analyzed. A total of 106 TCID50 viruses were placed in each tested condition, and changes of the viral infectivity in samples after treatments were measured by evaluating cytopathic effect (CPE) in cell line Vero-E6 at 48 h after infectionn. Results The results showed that SARS coronavirus in the testing condition could survive in serum, 1:20 diluted sputum and feces for at least 96 h, whereas it could remain alive in urine for at least 72 h with a low level of infectivity. The survival abilities on the surfaces of eight different materials and in water were quite comparable, revealing reduction of infectivity after 72 to 96 h exposure. Viruses stayed stable at 4℃, at room temperature (20℃) and at 37℃ for at least 2 h without remarkable change in the infectious ability in cells, but were convened to be non-infectious after 90-, 60- and 30-min exposure at 56℃, at 67℃ and at 75℃, respectively. Irradiation of UV for 60 min on the virus in culture medium resulted in the destruction of viral infectivity at an undetectable level. Conclusion The survival ability of SARS coronavirus in human specimens and in environments seems to be relatively strong. Heating and UV irradiation can efficiently eliminate the viral infectivity.SHU-MING DUAN, XIN-SHENG ZHAO, RUI-FU WEN, JING-JING HUANG, GUO-HUA PI, SU-XIANG ZHANG, JUN HAN, SHENG-LI BI, LI RUAN, XIAO-PING DONGAND SARS RESEARCH TEAMInstitute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention,Ying-Xin Rd. 100, Beijing 100052, China 2003Biomedical and Environmental Sciences2003,16,3:29
11Distribution of high-risk human papillomavirus genotype prevalence and attribution to cervical precancerous lesions in rural North China显示文摘Objective: Precise prevention is more desired for cervical cancer due to the huge population, high prevalence of human papillomavirus(HPV) infection in China and the vision of screen-and-treat strategies in low-and middleincome countries(LMICs). Considerations of combining type-specific prevalence and attribution proportion to high-grade cervical intraepithelial neoplasia are informative to more precise and effective region-specific cervical cancer prevention and control programs. The aim of the current study was to determine the genotype distribution of HPV and attribution to cervical precancerous lesions among women from rural areas in North China.Methods: A total of 9,526 women participated in the cervical cancer screening project in rural China. The samples of women who tested positive for HPV were retested with a polymerase chain reaction(PCR)-based HPV genotyping test. The attribution proportion of specific high-risk human papillomavirus(HR-HPV) types for different grades of cervical lesions was calculated by using the type contribution weighting method.Results: A total of 22.2%(2,112/9,526) of women were HR-HPV positive and HPV52(21.7%) was the most common HR-HPV genotype, followed by HPV58(18.2%), HPV53(18.2%) and HPV16(16.2%). The top three genotypes detected in HR-HPV-positive cervical intraepithelial neoplasia(CIN)1 were HPV16(36.7%), HPV58(20.4%), HPV56(15.3%). Among CIN2+, the most frequent genotypes were HPV16(75.6%), HPV52(17.8%),HPV58(16.7%). HPV16, 56, 58, 53, 52, 59, 68, and 18 combined were attributed to 84.17% of all CIN1 lesions,and HPV16, 58, and 52 combined were attributed to 86.98% of all CIN2+ lesions.Conclusions: The prevalence of HR-HPV infection among women from rural areas in North China was high and HPV16, HPV58, HPV52 had paramount attributable fraction in CIN2+. Type-specific HPV prevalence and attribution proportion to cervical precancerous lesions should be taken into consideration in the development of vaccines and strategy for screening in this population.Shuang Zhao Xuelian Zhao Shangying Hu Jessica Lu Xianzhi Duan Xun Zhang Feng Chen Fanghui Zhao 2019Chinese Journal of Cancer Research2019,31,4:30
12Clinical evaluation of target controlled infusion system for sufentanil administration显示文摘背景 Sufentanil 目标控制注入(TCI ) 提供稳定的痛觉缺失,更好血液动力学的控制比静脉内的麻药,期望的恢复和在 perioperative 期间的麻醉的改进质量的大丸药注射时期。这研究在中国外科的 patients.Methods 在高集中为 sufentanil 评估了 TCI 系统的精确性和可行性在一般麻醉下面经历选任的外科的 12 个低风险成年人病人在这研究被包括。Sufentanil 与合并以前报导的 sufentanil 的人口 pharmacokinetic 数据的一个特定的 TCI 系统被管理,用 sufentanil 的目标效果地点集中 4 或 6 ng/ml。Sufentanil TCI 持续时间是 30 分钟。经常的动脉的血样品被液体层析团 spectrometry/mass spectrometry 为血浆 sufentanil 集中的决心在 sufentanil TCI 以后拿在期间并且直到 24 个小时。循环系统功能的变化在 precedure,恢复侧面和不利效果期间是集中与 TCI 系统预言的值相比的 recorded.Measured 血浆 sufentanil。偏爱(中部的表演错误, MDPE ) , procision (中部的绝对表演错误, MDAPE ) 并且摇摆(表演错误的可变性) sufentanil TCI,系统都是 determined.Results 病人们在麻醉的正式就职和维护期间有稳定的心血管的变量。眼睛开和 extubation 的时间是(5.6 ? 髼吗??ZHAO Yan ZHANG Li-ping WU Xin-min JIANG Jian-yu DUAN Jing-li HU Yong-fang LI Min LIU Wei SHENG Xiao-yan NI Cheng XU Mao GUO Xiang-yang 2009Chinese Medical Journal2009,,20:26
13Atg7 is required for acrosome biogenesis during spermatogenesis in mice显示文摘acrosome 是盖住精子原子核的前面的部分并且在授精的过程起一个必要作用的一个专业化细胞器。位于这个 lysosome 相关的细胞器(LRO ) 的生物的续生说下面的分子的机制大部分仍然是未知的。这里,我们显示出房间特定的 Atg7 大美人老鼠是的那个细菌由于在 acrosome 生物的续生说的一个缺点不肥沃并且显示了类似于人的 globozoospermia 的显型;这个繁殖缺点被 intracytoplasmic 精子注射成功地救。而且,在细菌房间的 Atg7 的弄空没影响细菌房间的开发的早阶段,但是精子发生在以后上演,在 Golgi 期间没有通过到保险丝进一个单个 acrosomal 泡的 proacrosomal 泡分阶段执行,它最后导致了不规则或将近 round-headed 精子。Autophagic 流动在弄空 Atg7 的细菌房间被破坏,最后导致 LC3 变化形式的失败到 Golgi 导出仪器的泡。另外, Atg7 部分调整了另一 globozoospermia 相关的蛋白质,联系 Golgi 的 PDZ 卷和卷卷包含主题的蛋白质(GOPC ) ,在 acrosome 生物的续生说期间。最后,任何一个 autophagy 的注射或进睾丸的 lysosome 禁止者导致了类似的显型到细菌的房间特定的 Atg7 大美人老鼠。总的来说,我们的结果揭开为在 acrosome 的生物的续生说的 Atg7 的一个新角色,并且我们提供证据为 acrosome 支持 autolysosome 起源假设。Hongna Wang Haifeng Wan Xixia Li Weixiao Liu Qi Chen Yaqing Wang Lin Yang Hongmei Tang Xiujun Zhang Enkui Duan Xiaoyang Zhao Fei Gao Wei Li 2014Cell Research2014,24,7:25
14Monitoring lake changes of Qinghai-Tibetan Plateau over the past 30 years using satellite remote sensing data显示文摘During the years 2006–2009,lakes in the Qinghai-Tibetan Plateau(QTP)were investigated using satellite remote sensing strategies.We report the results of this investigation as well as follow-up research and expanded work.For the investigation,we mainly focused on lakes whose areas are more than 1 km2.The remote sensing data that we used included 408 scenes of CBERS CCD images and 5 scenes of Landsat ETM?images in Qinghai Province and Tibet Autonomous Region.All these data were acquired around years 2005–2006.Besides remote sensing images,we also collected 1,259 topographic maps.Numbers and areas of lakes were analyzed statistically,which were then compared with those coming from the first lake investigation(implemented between the1960s and 1980s).According to our investigation,up to and around year 2005–2006,the total number of lakes in the QTP was 1,055(222 in Qinghai and 833 in Tibet),accounting for more than 30%of that of China.Thirty newborn lakes with area[1 km2were found,and 5 dead lakes with initial area[1 km2were also found.Among those 13 big lakes([500 km2),Yamzhog Yumco had seriously shrunk,and it has continued to shrink in recent years;Qinghai Lake had shrunk during the period,but some new researches indicated that it has been expanding since the year 2004;Siling Co,Nam Co,and Chibuzhang Co had expanded in the period.We divided the newborn lakes into six categories according to their forming reasons,including river expansion,wetland conversion,etc.The changes of natural conditions led to the death of four lakes,and human exploitation was the main reason for the death of Dalianhai Lake in Qinghai.We picked out three regions which were sensitive to the change of climate and ecological environment:Nagqu Region,Kekexili Region,and the source area of the Yellow River(SAYR).Lakes in both Nagqu and Kekexili have been expanded;meanwhile,most lakes in the SAYR have obviously been shrunk.These regional patterns of lake changes were highly related to variations of temperature,glacier,precipitation,and evaporation.Our investigation and analysis will provide references for researches related to lake changes in the QTP and the response to climate fluctuations.Wei Wan Pengfeng Xiao Xuezhi Feng Hui Li Ronghua Ma Hongtao Duan Limin Zhao 2014Chinese Science Bulletin2014,59,10:22
15Preparation of Artificial Antigen and Egg Yolk-derived Immunoglobulin(IgY) of Citrinin for Enzyme-Linked Immunosorbent Assay显示文摘To prepare artificial antigens and anti-citrinin egg yolk-derived immunoglobulin(IgY) to build an enzyme-linked immunosorbent assay(ELISA) for citrinin(CTN).Methods CTN was conjugated with bovine serum albumin(BSA),ovalbumin(OVA) with formaldehyde condensation method to prepare artificial antigens and identified by ultraviolet(UV) spectrometry and Infrared(IR) spectrometry.Artificial antigens for CTN and anti-CTN IgY were purified with polyethylene glycol two-step precipitation method and identified by sodium dodecyl sulfate-polyacrylamide gel electrophoresis(SDS-PAGE).ELISA with IgY was established.Cross-reactivity of IgY with various structural similarities to CTN and possible co-occurrence with CTN in agricultural commodities were studied.Results UV and IR absorption spectra suggested that CTN was correlated with the carrier protein of BSA or OVA.SDS-PAGE patterns showed that the anti-CTN IgY was almost pure with a molecular weight of approximate 100 KD.The indirect competitive ELISA showed that the detection limit of CTN was 10 ng·mL-1,with a good linearity ranging 20-640 ng·mL-1.Conclusion Artificial antigens of CTN can be successfully synthesized.The established ELISA can be used to determine CTN-contaminated samples.ZHAO-HUI DUAN ZHUANG-SEN LIN HE-RUI YAO YAN-HONG GAO KUN ZHANG Su-QING ZHAO ZHEN-YU ZHU 2009Biomedical and Environmental Sciences2009,22,3:21
16Clinical outcomes of EGFR-TKI treatment and genetic heterogeneity in lung adenocarcinoma patients with EGFR mutations on exons 19 and 21显示文摘Background:Epidermal growth factor receptor(EGFR) mutations,including a known exon 19 deletion(19 del) and exon 21 L858 R point mutation(L858R mutation),are strong predictors of the response to EGFR tyrosine kinase inhibitor(EGFR-TKI) treatment in lung adenocarcinoma.However,whether patients carrying EGFR 19 del and L858 R mutations exhibit different responsiveness to EGFR-TKls and what are the potential mechanism for this difference remain controversial.This study aimed to investigate the clinical outcomes of EGFR-TKI treatment in patients with EGFR 19 del and L858 R mutations and explore the genetic heterogeneity of tumors with the two mutation subtypes.Methods:Of 1127 patients with advanced lung adenocarcinoma harboring EGFR 19 del or L858 R mutations,532 received EGFR-TKI treatment and were included in this study.EGFR 19 del and L858 R mutations were detected by using denaturing high-performance liquid chromatography(DHPLC).T790 M mutation,which is a common resistant mutation on exon 20 of EGFR,was detected by amplification refractory mutation system(ARMS).Next-generation sequencing(NGS) was used to explore the genetic heterogeneity of tumors with EGFR 19 del and L858 R mutations.Results:Of the 532 patients,319(60.0%) had EGFR 19 del,and 213(40.0%) had L858 R mutations.The patients with EGFR 19 del presented a significantly higher overall response rate(ORR) for EGFR-TKI treatment(55.2%vs.43.7%,P = 0.017) and had a longer progression-free survival(PFS) after first-line EGFR-TKI treatment(14.4 vs.11.4 months,P = 0.034) compared with those with L858 R mutations.However,no statistically significant difference in overall survival(OS) was observed between the two groups of patients.T790 M mutation status was analyzed in 88 patients before EGFR-TKI treatment and 134 after EGFR-TKI treatment,and there was no significant difference in the co-existence of T790 M mutation with EGFR 19 del and L858 R mutations before EGFR-TKI treatment(5.6%vs.8.8%,P = 0.554)or after treatment(24.4%vs.35.4%,P = 0.176).In addition,24 patients with EGFR 19 del and 19 with L858 R mutations were analyzed by NGS,and no significant difference in the presence of multiple somatic mutations was observed between the two genotypes.Conclusions:Patients with EGFR 19 del exhibit longer PFS and higher ORR compared with those with L858 R mutations.Whether the heterogeneity of tumors with EGFR 19 del and L858 R mutations contribute to a therapeutic response difference needs further investigation.Jiang-Yong Yu Si-Fan Yu Shu-Hang Wang Hua Bai Jun Zhao Tong-Tong An Jian-Chun Duan Jie Wang 2016Chinese Journal of Cancer2016,35,4:19
17Use of the Metabolomics Approach to Characterize Chinese Medicinal Material Huangqi显示文摘基因、新陈代谢的采指纹的罐头的集成提供一条新途径区分类似的繁体中文医药(TCM ) 材料。二豆科的植物, Mojia Huangqi 和 Menggu Huangqi,是在形态学,化学成分,和 genomic DNA 顺序的重要医药植物和份额伟人类似。Mojia Huangqi 和 Menggu Huangqi 的分类为超过 50years 被辩论了, TCM 材料的辨别直接影响药理学和临床的效果。AFLP 基于新陈代谢的采指纹的基因采指纹和 GCTOF/MS-based 被用来成功地区别二种。AFLP 的结果支持了 Menggu Huangqi 是 Mojia Huangqi 的变体的意见。新陈代谢的采指纹证明生长地点比遗传型在代谢物作文和数量上有更大的影响(栽培对野) 在 Menggu Huangqi。一些可溶的糖,丰满的酸,脯氨酸,和 polyamine 的差别反映了植物改编到不同生长环境。用 multivariate 和 univariate,统计分析,三个 AFLP 标记和八代谢物作为候选人 DNA 和新陈代谢的标记被识别区分二植物材料。在 AFLP 标记和代谢物之间的关联网络揭示了一个复杂关联网络,它显示了特殊新陈代谢的小径和 Huangqi 的规定网络。Li-Xin Duan Tian-Lu Chen Ming Li Min Chen Ye-Qing Zhou Guang-Hong Cui Ai-Hua Zhao Wei Jia Lu-Qi Huang Xiaoquan Qi 2012Molecular Plant2012,5,2:19
18Reference genes identified in the silkworm Bombyx moil during metamorphism based on oligonucleotide microarray and confirmed by qRT-PCR显示文摘在 mRNA 水平的基因表达式数量化离子为 post-genomic 研究是很重要的,因为基因表达式水平是目标基因的特殊生物函数的思考。方法为基因表达式数量化离子使用了,例如微数组或量的即时聚合酶链反应(qRT-PCR ) ,要求稳定的表示引用基因。因此,发现合适的控制基因为基因数量化离子是必要的。在这研究,参考基因的染色体宽的调查在蚕 Bombyx 粗腐殖质 i 上在变态期间被执行。12 基因基于微数组由外部控制使正常化的整个染色体 oligonucleotide 被选择为通常认为的参考基因。然后, qRT-PCR 为潜在的参考基因候选人的进一步的确认和选择被采用。结果被分析,并且稳定的基因用 geNorm 被选择 3.4 并且 NormFinder 软件。最后,从每个方面考虑因素,翻译开始因素 4A ,翻译开始因素 3 子单元 4 ,和翻译开始因素 3 子单元 5 (由 sw22934 , swl4876 ,和 swl3956 代表了)越过检验发展阶段作为可靠内部控制被选择,当时细胞质的肌动朊( sw22671 ),在以前的研究的通常使用的参考基因被显示在整个检验发展阶段急速地变化。为未来研究,我们在变态期间为不同发展阶段的数据正规化推荐那些三稳定的引用基因的几何平均数的使用为一个精确正规化因素。Gen-Hong Wang Qing-You Xia Dao-Jun Cheng Jun Duan Ping Zhao Jie Chen Li Zhu 2008Insect Science2008,15,5:18
19PERSPECTIVES IN MECHANICS OF HETEROGENEOUS SOLIDS显示文摘The Microand Nano-mechanics Working Group of the Chinese Society of Theoretical and Applied Mechanics organized a forum to discuss the perspectives,trends,and directions in mechanics of heterogeneous materials in January 2010.The international journal,Acta Mechanica Solida Sinica,is devoted to all fields of solid mechanics and relevant disciplines in science,technology,and engineering,with a balanced coverage on analytical,experimental,numerical and applied investigations.On the occasion of the 30 th anniversary of Acta Mechanica Solida Sinica,its editor-in-chief,Professor Q.S.Zheng invited some of the forum participants to review the state-of-the-art of mechanics of heterogeneous solids,with a particular emphasis on the recent research development results of Chinese scientists.Their reviews are organized into five research areas as reported in different sections of this paper.§I firstly brings in focus on microand nano-mechanics,with regards to several selective topics,including multiscale coupled models and computational methods,nanocrystal superlattices,surface effects,micromechanical damage mechanics,and microstructural evolution of metals and shape memory alloys.§II shows discussions on multifield coupled mechanical phenomena,e.g.,multi-fields actuations of liquid crystal polymer networks,mechanical behavior of materials under radiations,and micromechanics of heterogeneous materials.In §III,we mainly address the multiscale mechanics of biological nanocomposites,biological adhesive surface mechanics,wetting and dewetting phenomena on microstructured solid surfaces.The phononic crystals and manipulation of elastic waves were elaborated in §IV.Finally,we conclude with a series of perspectives on solid mechanics.This review will set a primary goal of future science research and engineering application on solid mechanics with the effort of social and economic development.C.Q. Chen J.Z. Cui H.L. Duan X.Q. Feng L.H. He G.K. Hu M.J. Huang Y.Z. Huo B.H. Ji B. Liu X.H. Peng H.J. Shi Q.P. Sun J.X. Wang Y.S. Wang H.P. Zhao Y.P. Zhao Q.S. Zheng W.N. Zou 2011Acta Mechanica Solida Sinica2011,24,1:18
20Effect of Ce doping of TiO_2 support on NH_3-SCR activity over V_2O_5–WO_3/CeO_2–TiO_2 catalyst显示文摘CeO2–TiO2composite supports with different Ce/Ti molar ratios were prepared by a homogeneous precipitation method, and V2O5–WO3/CeO2–TiO2catalysts for the selective catalytic reduction(SCR) of NOx with NH3 were prepared by an incipient-wetness impregnation method. These catalysts were characterized by means of BET, XRD, UV–Vis,Raman and XPS techniques. The results showed that the catalytic activity of V2O5–WO3/TiO2 was greatly enhanced by Ce doping(molar ratio of Ce/Ti = 1/10) in the TiO2 support.The catalysts that were predominantly anatase TiO2 showed better catalytic performance than the catalysts that were predominantly fluorite CeO2. The Ce additive could enhance the surface adsorbed oxygen and accelerate the SCR reaction. The effects of O2 concentration, ratio of NH3/NO, space velocity and SO2 on the catalytic activity were also investigated. The presence of oxygen played an important role in NO reduction. The optimal ratio of NH3/NO was 1/1 and the catalyst had good resistance to SO2 poisoning.Kai Cheng Jian Liu Tao Zhang Jianmei Li Zhen Zhao Yuechang Wei Guiyuan Jiang Aijun Duan 2014Journal of Environmental Sciences2014,26,10:18
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