|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | 2018 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 | 2018 | Science Bulletin2018，63，23： | 54 |
| 2 | BMP-6 inhibits microRNA-21 expression in breast cancer through repressing 6EF1 and AP-1显示文摘 | Jun Du Shuang Yang Di An Fen Hu Wei Yuan Chunli Zhai Tianhui Zhu | 2009 | Cell Research2009，19，4： | 44 |
| 3 | Acupuncture at the Taixi(KI3) acupoint activates cerebral neurons in elderly patients with mild cognitive impairment显示文摘Our previous findings have demonstrated that acupuncture at the Taixi(KI3) acupoint in healthy youths can activate neurons in cognitive-related cerebral cortex. Here, we investigated whether acupuncture at this acupoint in elderly patients with mild cognitive impairment can also activate neurons in these regions. Resting state and task-related functional magnetic resonance imaging showed that the pinprick senstation of acupuncture at the Taixi acupoint differed significantly between elderly patients with mild cognitive impairment and healthy elderly controls. Results showed that 20 brain regions were activated in both groups of participants, including the bilateral anterior cingulate gyrus(Brodmann areas [BA] 32, 24), left medial frontal cortex(BA 9, 10, 11), left cuneus(BA 19), left middle frontal gyrus(BA 11), left lingual gyrus(BA 18), right medial frontal gyrus(BA 11), bilateral inferior frontal gyrus(BA 47), left superior frontal gyrus(BA11), right cuneus(BA 19, 18), right superior temporal gyrus(BA 38), left subcallosal gyrus(BA 47), bilateral precuneus(BA 19), right medial frontal gyrus(BA 10), right superior frontal(BA 11), left cingulate gyrus(BA 32), left precentral gyrus(BA 6), and right fusiform gyrus(BA 19). These results suggest that acupuncture at the Taixi acupoint in elderly patients with mild cognitive impairment can also activate some brain regions. | Shangjie Chen Maosheng Xu Hong Li Jiuping Liang Liang Yin Xia Liu Xinyan Jia Fen Zhu Dan Wang Xuemin Shi Lihua Zhao | 2014 | Neural Regeneration Research2014，9，11： | 18 |
| 4 | miR-223 and miR-142 attenuate hematopoietic cell proliferation, and miR-223 positively regulates miR-142 through LMO2 isoforms and CEBP-β显示文摘miR-142 和 miR-223 作为造血的特定的 microRNAs 被识别了。miR-223 在 myeloid 系开发有关键功能。然而, miR-142 的功能仍然保持不清楚。在这研究,我们发现那 miR-142, miR-223 稀释了造血的房间,和那 miR-223 的增长通过 LMO2-L/-S isoforms 和 CEBP- 尾的起来调整的 miR-142 表示。miR-223 否定地 post-transcriptionally 调整了 LMO2-L/-S isoforms 和 CEBP- 尾,当 CEBP- 尾断然调整了 LMO2-L/-S isoforms 并且否定地两个都 LMO2-L/-S isoforms 调整了 miR-142 时。这些结果揭示一条新奇 miR-223 鈥擟E BP-尾鈥擫M O2 鈥攎i R-142 规章的小径,它在造血作用有枢轴的功能。 | Wei Sun Wenwen Shen Shuang Yang Fen Hu Huihui Li Tian-Hui Zhu | 2010 | Cell Research2010，20，10： | 12 |
| 5 | Effects of UV-A exposures on longevity and reproduction in Helicoverpa armigera, and on the development of its F1 generation显示文摘Helicoverpa armigera 成年人显示明显的积极趋光性的行为点亮刺激,并且对特别敏感紫外(紫外) 光。效果紫外 A (longwave ) 在 H 的成年长寿和复制上的暴露。armigera 被调查,以及 F1 产生的发展。配对的成年人暴露于为各种各样的时间时期(0, 1, 5 和 9 h/day )紫外 A,直到成年生活的结束。结果证明成年长寿与增加暴露时间减少了因为性,和重要减少为 5 和 9 h/day 在暴露以后被观察。当成年人们为 1 和 5 h/day 被暴露时,肥沃增加了,并且重要差别在 5 h/day 组被观察。在所有处理的女性的 Oviposition 率比在控制显著地高。暴露到为在 F1 不成熟的舞台的累积幸存引起衰落的更长的时期(5 和 9 h/day )紫外 A,却不重要差别在鸡蛋开口,化蛹和羽化被发现。F1 幼虫的发展时期显著地在暴露以后被延长到为 5 和 9 h/day 紫外 A。紫外 A 的放射没在 F1 蛹的时期上有重要效果。 | Chang-Yu Zhang Jian-Yu Meng Xiao-Ping Wang Fen Zhu Chao-Liang Lei | 2011 | Insect Science2011，18，6： | 12 |
| 6 | Structure Styles of Mesozoic-Cenozoic U-bearing Rock Series in Northern China显示文摘In Northern China,sandstone-type uranium(U) deposits are mostly developed in MesozoicCenozoic basins. These U deposits are usually hosted in unvarying horizons within the basins and exhibit typical U-forming sedimentary associations,which is referred to as U-bearing rock series. This study describes the structural features of U-bearing rock series within the main Mesozoic-Cenozoic Uproducing continental basins in Kazakhstan,Uzbekistan,and Russia in the western segment of the Central Asian Metallogenic Belt(CAMB),and Northern China in the eastern segment of the CAMB. We analyze the basic structural conditions and sedimentary environments of U-bearing rock series in Northern China and classify their structural styles in typical basins into river valley,basin margin,and intrabasin uplift margin types. The intrabasin uplift margin structural style proposed in this study can be used to indicate directions for the exploration of sandstone-type U deposits hosted in the center of a basin. At the same time,the study of structural style provides a new idea for exploring sandstone-type U deposits in Mesozoic-Cenozoic basins and it is of great significance to prospecting of sandstone-type uranium deposits. | JIN Ruoshi MIAO Peisen SIMA Xianzhang LI Jianguo ZHAO Hualei ZHAO Fengqing FEN Xiaoxi CHEN Yin CHEN Lulu ZHAO Lijun ZHU Qiang | 2016 | Acta Geologica Sinica(English Edition)2016，90，6： | 12 |
| 7 | Target Organ Protection from a Novel AngiotensinⅡReceptor (AT1) Vaccine ATR12181 in Spontaneously Hypertensive Rats显示文摘高血压生产为与疾病联系的死亡经常负责的 pathophysiological 变化。overactive 高血压蛋白原酶血管收缩素系统在高血压和与高血压联系的目标机关损坏的发展起一个中央作用,是明显的。我们以前发现了新奇血管收缩素受体(AT1 ) vaccine-ATR12181 在自发地高血压的老鼠(SHR ) 稀释了高血压(BP ) 的发展人的必要高血压的模型。我们的目的是决定高 BP 的这变细是否与由高血压的状态导致的目标机关损坏的预防被联系。SHR 被在联合复杂的 peptide-tetanus-toxoid 的重复下的注射与 Freund 的助手从 AT1A 受体的 extracelluar 部分对肽(编码 ATR12181 ) 使免疫。64 个星期长期的观察被执行。重复种痘导致了 anti-ATR12181 抗体的正式就职。在观察的结束,种牛痘表明的 SHR 降低肾损害的 BP,减少的心脏的肥大和变细。在心和肾的 c-fos 和 c-jun 的 mRNA 层次在种牛痘的 SHR 被减少。因为自我抗原被使用,疫苗的安全被担心。然而,自体免疫的疾病的符号没在心和肾的节被观察。这些数据证明对 AT1 受体的细胞外的部分的域的那重复免疫能对高血压引起一个目标机关保护。对 AT1 受体的活跃免疫可以在高血压的治疗被看作有希望的新策略。 | Feng Zhu Yuhua Liao Liudong Li Min Cheng Fen Wei Yumiao Wei Ming Wang | 2006 | Cellular & Molecular Immunology2006，3，2： | 10 |
| 8 | Effect of noninvasive positive pressure ventilation on weaning success in patients receiving invasive mechanical ventilation: a meta-analysis显示文摘 | ZHU Fen LIU Zi-long LONG Xuan WU Xiao-dan ZHOU Jing BAI Chun-xue LI Shan-qun | 2013 | Chinese Medical Journal2013，，7： | 10 |
| 9 | Corrosion resistance of biodegradable polymeric layer-by-layer coatings on magnesium alloy AZ31显示文摘Biocompatible 聚合电解质 multilayers (PEM ) 和 polysiloxane 混血儿涂层被准备改进可被细菌破坏的 Mg 合金 AZ31 的腐蚀抵抗。PEM,包含了 poly 轮流出现,并且 poly (allylamine hydrochloride )( 哼) ,是第一在经由静电的相互作用的 AZ31 合金底层的表面上自我装配,是指明了(PAH/PSS )5/AZ31。然后,(PAH/PSS )5/AZ31 样品被蘸进制作 PMTMS 的答案拍摄的 methyltrimethoxysilane (MTMS ) ,指定了为 PMTMS/(PAH/PSS )5/AZ31。表面形态学,微观结构和这些电影的化学作文被 FE-SEM, FTIR, XRD 和 XPS 调查。Potentiodynamic 极化,电气化学的阻抗光谱学和氢进化大小证明合成电影显著地提高了的 PMTMS/(PAH/PSS )5/AZ31 在丝等的 AZ31 合金的腐蚀抵抗平衡盐答案(HBSS ) 。PAH 和 PSS 电影有效地包括 Ca 3(PO4)2 和 hydroxyapatite 改进了帽子混合物的免职(哈) 。而且,合成涂层的腐蚀机制被讨论。这些涂层能是为可被细菌破坏的 Mg 合金的其他的候选人涂层。 | Lan-Yue CUI Rong-Chang ZENG Xiao-Xiao ZHU Ting-Ting PANG Shuo-Qi LI Fen ZHANG | 2016 | Frontiers of Materials Science2016，10，2： | 10 |
| 10 | Assessing the Effectiveness of a Cervical Cancer Screening Program in a Hospital-based Study显示文摘This study compared HPV testing and liquid-based cytology(LCT)as performance indicators for cervical cancer screening in a hospital-based study.A total of 61,193 outpatients were screened initially by LCT.Samples with screening results showing atypical squamous cells of undetermined significance(ASC-US)or worse were referred for colposcopy,and some | YANG Yi LANG Jing He WANG You Fang CHENG Xue Mei CAI Yu Pin LI Hui ZHU Bao Li ZHANG Rui Fen | 2015 | Biomedical and Environmental Sciences2015，28，1： | 10 |
| 11 | Comparison of Xpert MTB/RIF, Real Amp, and CPA Tests in Detecting Mycobacterium tuberculosis显示文摘Today, tuberculosis (TB) remains a global public health threat associated with significantly high rates of morbidity and mortality. The World Health Organization's (WHO) Global Tuberculosis Report 2018[1] has reported that in 2017, 10.0 million people across the world had developed TB diseases that resulted in an estimated 1.6 million deaths, and 889, 000 people developed TB in China that led to 39, 000 TB-related deaths. Therefore, rapid and accurate detection of Mycobacterium tuberculosis (MTB) is important for initiating early treatment and reducing mortality. Traditional diagnostic methods for pulmonary TB incorporate chest radiography and sputum smear microscopy;however, several cases of tuberculosis go undiagnosed because of the low sensitivity of smear microscopy[2]. | OU Xi Chao LI Hui LIU Dong Xin XIA Hui MA Xiao Guang WANG Shao Hua WANG Sheng Fen ZHU Yan Kun ZHAO Bing ZHAO Yan Lin | 2019 | Biomedical and Environmental Sciences2019，32，3： | 9 |
| 12 | Relevant Factors of Estrogen Changes of Myopia in Adolescent Females显示文摘 | Juan-Fen Gong Hong-Li Xie Xin-Jie Mao Xue-Bo Zhu Zuo-Kai Xie Hai-Hong Yang Yang Gao Xiao-Feng Jin Yu Pan Fen Zhou | 2015 | Chinese Medical Journal2015，，5： | 9 |
| 13 | Cystathionine-γ-lyase ameliorates the histone demethylase JMJD3-mediated autoimmune response in rheumatoid arthritis显示文摘Cystathionine-γ-lyase(CSE),an enzyme associated with hydrogen sulfide(H2S)production,is an important endogenous regulator of inflammation.Jumonji domain-containing protein 3(JMJD3)is implicated in the immune response and inflammation.Here,we investigated the potential contribution of JMJD3 to endogenous CSE-mediated inflammation in rheumatoid arthritis(RA).Upregulated CSE and JMJD3 were identified in synovial fibroblasts(SFs)from RA patients as well as in the joints of arthritic mice.Knocking down CSE augmented inflammation in IL-1β-induced SFs by increasing JMJD3 expression.In addition,CSE−/−mice with collagen-induced arthritis(CIA)developed severe joint inflammation and bone erosion.Conversely,overexpressing CSE inhibited JMJD3 expression by the transcription factor Sp-1 and was accompanied by reduced inflammation in IL-1β-treated SFs.Furthermore,JMJD3 silencing or the administration of the JMJD3 inhibitor GSK-J4 significantly decreased the inflammatory response in IL-1β-treated SFs,mainly by controlling the methylation status of H3K27me3 at the promoter of its target genes.GSK-J4 markedly attenuated the severity of arthritis in CIA mice.In conclusion,suppressing JMJD3 expression by the transcription factor Sp-1 is likely responsible for the ability of CSE to negatively modulate the inflammatory response and reduce the progression of RA. | Weijun Wu Ming Qin Wanwan Jia Zheng Huang Zhongzheng Li Di Yang Mengwei Huang Chenxi Xiao Fen Long Jianchun Mao Philip K.Moore Xinhua Liu Yi Zhun Zhu | 2019 | Cellular & Molecular Immunology2019，16，8： | 9 |
| 14 | Association of Overlapped and Un-overlapped Comorbidities with COVID-19 Severity and Treatment Outcomes: A Retrospective Cohort Study from Nine Provinces in China显示文摘Objective Several COVID-19 patients have overlapping comorbidities. The independent role of each component contributing to the risk of COVID-19 is unknown, and how some non-cardiometabolic comorbidities affect the risk of COVID-19 remains unclear.Methods A retrospective follow-up design was adopted. A total of 1,160 laboratory-confirmed patients were enrolled from nine provinces in China. Data on comorbidities were obtained from the patients’ medical records. Multivariable logistic regression models were used to estimate the odds ratio(OR) and 95% confidence interval(95% CI) of the associations between comorbidities(cardiometabolic or non-cardiometabolic diseases), clinical severity, and treatment outcomes of COVID-19.Results Overall, 158(13.6%) patients were diagnosed with severe illness and 32(2.7%) had unfavorable outcomes. Hypertension(2.87, 1.30–6.32), type 2 diabetes(T2 DM)(3.57, 2.32–5.49),cardiovascular disease(CVD)(3.78, 1.81–7.89), fatty liver disease(7.53, 1.96–28.96), hyperlipidemia(2.15, 1.26–3.67), other lung diseases(6.00, 3.01–11.96), and electrolyte imbalance(10.40, 3.00–26.10)were independently linked to increased odds of being severely ill. T2 DM(6.07, 2.89–12.75), CVD(8.47,6.03–11.89), and electrolyte imbalance(19.44, 11.47–32.96) were also strong predictors of unfavorable outcomes. Women with comorbidities were more likely to have severe disease on admission(5.46,3.25–9.19), while men with comorbidities were more likely to have unfavorable treatment outcomes(6.58, 1.46–29.64) within two weeks.Conclusion Besides hypertension, diabetes, and CVD, fatty liver disease, hyperlipidemia, other lung diseases, and electrolyte imbalance were independent risk factors for COVID-19 severity and poor treatment outcome. Women with comorbidities were more likely to have severe disease, while men with comorbidities were more likely to have unfavorable treatment outcomes. | MA Yan ZHU Dong Shan CHEN Ren Bo SHI Nan Nan LIU Si Hong FAN Yi Pin WU Gui Hui YANG Pu Ye BAI Jiang Feng CHEN Hong CHEN Li Ying FENG Qiao GUO Tuan Mao HOU Yong HU Gui Fen HU Xiao Mei HU Yun Hong HUANG Jin HUANG Qiu Hua HUANG Shao Zhen JI Liang JIN Hai Hao LEI Xiao LI Chun Yan LI Min Qing LI Qun Tang LI Xian Yong LIU Hong De LIU Jin Ping LIU Zhang MA Yu Ting MAO Ya MO Liu Fen NA Hui WANG Jing Wei SONG Fang Li SUN Sheng WANG Dong Ting WANG Ming Xuan WANG Xiao Yan WANG Yin Zhen WANG Yu Dong WU Wei WU Lan Ping XIAO Yan Hua XIE Hai Jun XU Hong Ming XU Shou Fang XUE Rui Xia YANG Chun YANG Kai Jun YUAN Sheng Li ZHANG Gong Qi ZHANG Jin Bo ZHANG Lin Song ZHAO Shu Sen ZHAO Wan Ying ZHENG Kai ZHOU Ying Chun ZHU Jun Teng ZHU Tian Qing ZHANG Hua Min WANG Yan Ping WANG Yong Yan 无 | 2020 | Biomedical and Environmental Sciences2020，33，12： | 8 |
| 15 | Neuroimaging mechanisms of high-frequency repetitive transcranial magnetic stimulation for treatment of amnestic mild cognitive impairment:a double-blind randomized sham-controlled trial显示文摘Individuals with amnestic mild cognitive impairment(aMCI)have a high risk of developing Alzheimer’s disease.Although repetitive transcranial magnetic stimulation(rTMS)is considered a potentially effective treatment for cognitive impairment in patients with aMCI,the neuroimaging mechanisms are poorly understood.Therefore,we performed a double-blind randomized sham-controlled trial in which rTMS was applied to the left dorsolateral prefrontal cortex of aMCI patients recruited from a community near the Third Hospital Affiliated to Sun Yat-sen University,China.Twenty-four patients with aMCI were randomly assigned to receive true rTMS(treatment group,n=12,6 men and 6 women;age 65.08±4.89 years)or sham stimulation(sham group,n=12,5 men and 7 women;age 64.67±4.77 years).rTMS parameters included a stimulation frequency of 10 Hz,stimulation duration of 2 seconds,stimulation interval of 8 seconds,20 repetitions at 80%of the motor threshold,and 400 pulses per session.rTMS/sham stimulation was performed five times per week over a period of 4 consecutive weeks.Our results showed that compared with baseline,Montreal Cognitive Assessment scores were significantly increased and the value of the amplitude of low-frequency fluctuation(ALFF)was significantly increased at the end of treatment and 1 month after treatment.Compared with the sham group,the ALFF values in the right inferior frontal gyrus,triangular part of the inferior frontal gyrus,right precuneus,left angular gyrus,and right supramarginal gyrus were significantly increased,and the ALFF values in the right superior frontal gyrus were significantly decreased in the treatment group.These findings suggest that high-frequency rTMS can effectively improve cognitive function in aMCI patients and alter spontaneous brain activity in cognitive-related brain areas.This study was approved by the Ethics Committee of Shenzhen Baoan Hospital of Southern Medical University,China(approval No.BYL20190901)on September 3,2019 and registered in the Chinese Clinical Trials Registry(registration No.ChiCTR1900028180)on December 14,2019. | Li-Qiong Yuan Qing Zeng Dan Wang Xiu-Yun Wen Yu Shi Fen Zhu Shang-Jie Chen Guo-Zhi Huang | 2021 | Neural Regeneration Research2021，16，4： | 6 |
| 16 | Vegfa signaling regulates diverse artery/vein formation in vertebrate vasculatures显示文摘Vascular endothelial growth factor A(Vegfa) signaling regulates vascular development during embryogenesis and organ formation.However,the signaling mechanisms that govern the formation of various arteries/veins in various tissues are incompletely understood.In this study,we utilized transcription activator-like effector nuclease(TALEN) to generate zebrafish vegfaa mutants.vegfaa^(-/-) embryos are embryonic lethal,and display a complete loss of the dorsal aorta(DA) and expansion of the cardinal vein.Activation of Vegfa signaling expands the arterial cell population at the expense of venous cells during vasculogenesis of the axial vessels in the trunk.Vegfa signaling regulates endothelial cell(EC) proliferation after arterial-venous specification.Vegfa deficiency and overexpression inhibit the formation of tip cell filopodia and interfere with the pathfinding of intersegmental vessels(ISVs).In the head vasculature,vegfaa^(-/-) causes loss of a pair of mesencephalic veins(MsVs) and central arteries(CtAs),both of which usually dvelop via sprouting angiogenesis.Our results indicate that Vegfa signaling induces the formation of the DA at the expense of the cardinal vein during the trunk vasculogenesis,and that Vegfa is required for the angiogenic formation of MsVs and CtAs in the brain.These findings suggest that Vegfa signaling governs the formation of diverse arteries/veins by distinct cellular mechanisms in vertebrate vasculatures. | Daqing Jin Diqi Zhu Yabo Fang Yiwei Chen Gaihong Yu Weijun Pan Dong Liu Fen Li Tao P.Zhong | 2017 | Journal of Genetics and Genomics2017，44，10： | 6 |
| 17 | Insecticidal activities of garlic substances against adults of grain moth, Sitotroga cerealella (Lepidoptera: Gelechiidae)显示文摘 | Feng-Lian Yang Fen Zhu Chao-Liang Lei | 2012 | Insect Science2012，19，2： | 4 |
| 18 | Recombinant osteopontin attenuates hyperoxia-induced acute lung injury through inhibiting nuclear factor kappa B and matrix metalloproteinases 2 and 9显示文摘 | Zhang Xiangfeng Liu Fen Zhu Guangfa Wang Zengzhi | 2014 | Chinese Medical Journal2014，，23： | 4 |
| 19 | Study on the effect of RDX content on the properties of nitramine propellant显示文摘Four kinds of nitroamine propellants with different RDX contents(10%,20%,30%and 40%)were prepared to study the effect of RDX content on the mechanical properties and combustion properties of nitroamine propellant.The mechanical properties and combustion properties of nitroamine propellant at the normal temperature(20C)and low temperature(à40C)were test by using impact testing machine,drop hammer impact test machine and closed bomb vessel.The test results show that the impact strength of30%RDX-contained nitramine propellant is maximum,but 40%RDX-contained nitramine propellant has the minimum impact strength.And the crushing height of propellant with 20%RDX-contained was the highest,but the crushing height of propellant with 40%RDX-contained the lowest.With the increase in RDX content in nitramine propellant,the energy of nitramine propellant increases and its burning rate reduces,but 40%RDX-contained nitramine propellant did not meet this trend at the low temperature because of its poor mechanical properties. | Fen ZHANG Deng-pan ZHU Qiong LIU Zhi-tao LIU Ping DU | 2017 | Defence Technology(防务技术)2017，13，4： | 4 |
| 20 | Inhibition of miR-135a-5p attenuates vascular smooth muscle cell proliferation and vascular remodeling in hypertensive rats显示文摘Proliferation of vascular smooth muscle cells(VSMCs)greatly contributes to vascular remodeling in hypertension.This study is to determine the roles and mechanisms of miR-135a-5p intervention in attenuating VSMC proliferation and vascular remodeling in spontaneously hypertensive rats(SHRs).MiR-135a-5p level was raised,while fibronectin type III domain-containing 5(FNDC5)mRNA and protein expressions were reduced in VSMCs of SHRs compared with those of Wistar–Kyoto rats(WKYs).Enhanced VSMC proliferation in SHRs was inhibited by miR-135a-5p knockdown or miR-135a-5p inhibitor,but exacerbated by miR-135a-5p mimic.VSMCs of SHRs showed reduced myofilaments,increased or even damaged mitochondria,increased and dilated endoplasmic reticulum,which were attenuated by miR-135a-5p inhibitor.Dual-luciferase reporter assay shows that FNDC5 was a target gene of miR-135a-5p.Knockdown or inhibition of miR-135a-5p prevented the FNDC5 downregulation in VSMCs of SHRs,while miR-135a-5p mimic inhibited FNDC5 expressions in VSMCs of both WKYs and SHRs.FNDC5 knockdown had no significant effects on VSMC proliferation of WKYs,but aggravated VSMC proliferation of SHRs.Exogenous FNDC5 or FNDC5 overexpression attenuated VSMC proliferation of SHRs,and prevented miR-135a-5p mimic-induced enhancement of VSMC proliferation of SHR.MiR-135a-5p knockdown in SHRs attenuated hypertension,normalized FNDC5 expressions and inhibited vascular smooth muscle proliferation,and alleviated vascular remodeling.These results indicate that miR-135a-5p promotes while FNDC5 inhibits VSMC proliferation in SHRs.Silencing of miR-135a-5p attenuates VSMC proliferation and vascular remodeling in SHRs via disinhibition of FNDC5 transcription.Either inhibition of miR-135a-5p or upregulation of FNDC5 may be a therapeutically strategy in attenuating vascular remodeling and hypertension. | Chao Ye Ying Tong Nan Wu Guo-wei Wan Fen Zheng Jing-yu Chen Jian-zhen Lei Hong Zhou Ai-dong Chen Jue-jin Wang Qi Chen Yue-hua Li Yu-ming Kang Guo-qing Zhu | 2021 | Acta Pharmacologica Sinica2021，42，11： | 4 |
您所在的机构暂未开通此部分的功能，请联系管理员