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| 1 | Outbreak of Dengue Fever in Central China,2013显示文摘In 2013,the first dengue fever(DF) outbreak in central China was reported in the central of Henan province,northern temperate regions,although they have been sequentially recorded in Southern China.106 suspected DF cases were reported and 73 patients were confirmed dengue virus type 3(DEN-3) infections.62/392(15.8%) local health persons showed DEN antibodies positive.To this day Henan is the northernmost province in China which has been reported about outbreak of DF and what is important is that it warns us the endemic range of DF has been expanded geographically in China. | HUANG Xue Yong MA Hong Xia WANG Hai Feng DU Yan Hua SU Jia LI Xing Le TANG Xiao Yan MA Hong Peng ZU Bing Can ZHANG Qiao Hong CHEN Hao Min XU Bian Li | 2014 | Biomedical and Environmental Sciences2014,27,11: | 30 |
| 2 | Minimally invasive surgery alone compared with intensity-modulated radiotherapy for primary stage I nasopharyngeal carcinoma显示文摘Background:The National Comprehensive Cancer Network guidelines recommend intensity-modulated radiotherapy(IMRT)as the primary curative treatment for newly diagnosed nasopharyngeal carcinoma(NPC),but the radiation-related complications and relatively high medical costs remain a consequential burden for the patients.Endoscopic nasopharyngectomy(ENPG)was successfully applied in recurrent NPC with radiation free and relatively low medical costs.In this study,we examined whether ENPG could be an effective treatment for localized stage I NPC.Methods:Ten newly diagnosed localized stage I NPC patients voluntarily received ENPG alone from June 2007 to September 2017 in Sun Yat-sen University Cancer Center.Simultaneously,the data of 329 stage I NPC patients treated with IMRT were collected and used as a reference cohort.The survival outcomes,quality of life(QOL),and medical costs between two groups were compared.Results:After a median follow-up of 59.0 months(95%CI 53.4-64.6),no death,locoregional recurrence,or distant metastasis was observed in the 10 patients treated with ENPG.The 5-year overall survival,local relapse-free survival,regional relapse-free survival,and distant metastasis-free survival among the ENPG-treated patients was similar to that among the IMRT-treated patients(100%vs.99.1%,100%vs.97.7%,100%vs.99.0%,100%vs.97.4%,respectively,P>0.05).In addition,compared with IMRT,ENPG was associated with decreased total medical costs($4090.42±1502.65 vs.$12620.88±4242.65,P<0.001)and improved QOL scores including dry mouth(3.3±10.5 vs.34.4±25.8,P<0.001)and sticky saliva(3.3±10.5 vs.32.6±23.3,P<0.001).Conclusions:ENPG alone was associated with promising long-term survival outcomes,low medical costs,and satisfactory QOL and might therefore be an alternative strategy for treating newly diagnosed localized stage I NPC patients who refused radiotherapy.However,the application of ENPG should be prudent,and prospective clinical tri-als were needed to further verify the results. | You-Ping Liu Xing Lv Xiong Zou Yi-Jun Hua Rui You Qi Yang Le Xia Shao-Yan Guo Wen Hu Meng-Xia Zhang Si-Yuan Chen Mei Lin Yu-Long Xie Li-Zhi Liu Rui Sun Pei-Yu Huang Wei Fan Xiang Guo Ming-Huang Hong Ming-Yuan Chen | 2019 | Cancer Communications2019,39,1: | 17 |
| 3 | 经腹股沟及腹股沟下显微精索静脉结扎术:精索静脉曲张的最佳手术治疗方式的荟萃分析显示文摘以往精索静脉曲张各种治疗方法疗效的荟萃分析存在不一致的结果。因此,我们进行了多种干预措施的荟萃分析,评估10种精索静脉曲张栓塞/硬化治疗方法的有效性和安全性,包括腹腔镜、腹膜后开放、经腹股沟开放和腹股沟下开放静脉结扎,腹股沟下显微和经腹股沟显微精索静脉结扎术,经皮静脉栓塞,TauberJl~行硬化,硬化逆行和期待治疗(无处理)。我们系统回顾了从1966年至2013年8月的35个随机对照试验和观察性研究。经腹股沟、腹股沟下显微手术、腹股沟开放、腹腔镜精索静脉结扎与期待治疗相比显著提高夫妻怀孕率(优势比[OR]分别为:3.48,2.68,2.92和2.9)。与腹膜后开放手术相比,经腹股沟显微手术显著提高患者的精子密度(平均差【MD]:10.60,95%CI:1.92—19.60)并改善精子运动(MD:9.09,95%CI:4.88—13.30)。经腹股沟下和腹股沟显微手术在复发率方面的表现优于开放腹膜后手术(OR分别为0.05,O.06)。Tauber顺行硬化和腹股沟下显微精索静脉结扎术的鞘膜积液形成的风险最低。与腹膜后开放精索静脉曲张术相比,腹股沟显微精索静脉结扎术的总的并发症率最低(OR=O.07,95%CI:0.02。0.19)。其次是腹股沟下显微(OR:O.09,95%CI:0.02.0.19)。经腹股沟显微和腹股沟下显微精索静脉曲张结扎术对提高患者怀孕率有良好的效果,能显著增加精子数量,并有着较低的并发症率。本文研究结果仍需要经过良好设计的随机对照临床研究进一步证实。 | Jun Wang Shu-Jie Xia Zhi-Hong Liu Le Tao Ji-Fu Ge Chen-Min Xu Jian-Xin Qiu | 2015 | Asian Journal of Andrology2015,17,1: | 16 |
| 4 | Enhanced rectification, transport property and photocurrent generation of multilayer ReSe2/MoS2 p-n heterojunctions显示文摘 | Xiaoting Wang Le Huang Yuting Peng Nengjie Huo Kedi Wu Congxin Xia Zhongming Wei Sefaattin Tongay Jingbo Li | 2016 | Nano Research2016,9,2: | 16 |
| 5 | Passive-source ocean bottom seismograph(OBS) array experiment in South China Sea and data quality analyses显示文摘Long-term passive source ocean bottom seismograph(OBS) observatory is challenging due to various technical difficulties. In order to gain experience in this field, and to reveal the lithospheric structure beneath the extinct ridge in the central South China Sea(SCS), we carried out a passive source OBS array experiment, which includes 18 OBSs, in the deep portion of SCS. Here we present the instrumentation, the OBS deployment and recovery of this experiment, and more importantly, the data quality evaluated by a number of approaches. Through processing and inspecting waveforms from global, regional and local earthquakes, we find that most of recovered OBSs have good data quality with discernible main phases. The ambient noise analyses of OBS recordings show that their noise is higher than the global average, and the horizontal component is noisier than the vertical, indicating current impacts on horizontal components are more severe. In the period range of 5–10 s, there is a noise notch for the SCS OBSs, and noise levels of horizontal components are comparable to the vertical. This feature, which is not seen at OBS stations in open ocean, suggests the distant sources for double frequency microseism in this marginal sea are not significant. In addition, we successfully determined the orientations for 7 OBSs by investigating their Rayleigh wave polarizations; and we demonstrated the dispersion feature of Rayleigh waves through the frequency-time analysis. Finally, we summarized lessons learned from this experiment regarding the passive source OBS investigations in SCS. | Chenguang Liu Qingfeng Hua Yanliang Pei Ting Yang Shaohong Xia Mei Xue Ba Manh Le Da Huo Fang Liu Haibo Huang | 2014 | Chinese Science Bulletin2014,59,33: | 11 |
| 6 | Onco-miR-24 regulates cell growth and apoptosis by targeting BCL2L11 in gastric cancer显示文摘胃的癌症是世界范围的最普通的恶意之一;然而,在 tumorigenesis 的分子的机制仍然需要探索。BCL2L11 属于 BCL-2 家庭,并且充当内在的 apoptotic 串联的一个中央管理者并且调停房间 apoptosis。尽管 miRNAs 被报导了涉及癌症开发的每个阶段,在 GC 的 miR-24 的角色还没被报导。在现在的学习,当 BCL2L11 的表示在 GC 的肿瘤纸巾被禁止时, miR-24 被发现起来调整。研究从在 vitro 并且在显示出的 vivo,那 miR-24 调整 BCL2L11 表示由与 mRNA 的 3UTR 直接有约束力,因此支持房间生长,移植当禁止房间 apoptosis 时。因此, miR-24 是能是为未来的潜在的药目标的新奇 onco-miRNA 临床的使用。 | Haiyang Zhang Jingjing Duan Yanjun Qu Ting Deng Rui Liu Le Zhang Ming Bai Jialu Li Tao Ning Shaohua Ge Xia Wang ZhenzhenWang~ Qian Fan Hongli Li Guoguang Ying Dingzhi Huang Yi Ba | 2016 | Protein & Cell2016,7,2: | 11 |
| 7 | 中国影子银行:是否对金融系统的稳定构成威胁显示文摘一、何为中国影子银行近期关于'民间借贷市场'风波的报道,诸如浙江省温州市的民间借贷危机事件,使得中国影子银行系统的脆弱性令人忧虑。随着影子银行的借贷规模在过去两年的迅速扩张,这种担忧是无可厚非的。我们估计目前影子银行系统借贷约占中国信贷总额的22%左右(相当于金融机构贷款余额总量的29%左右)。因此,考虑到其规模。 | Alicia Garcia Herrero Stephen Schwarts Le Xia George Xu | 2012 | 金融发展评论2012,,1: | 11 |
| 8 | Vertical dynamic response of the ballastless track on long-span plate-truss cable-stayed bridges显示文摘An analytical model is presented to study vertical dynamic response of the ballastless track on long-span plate-truss cable-stayed bridges based on an explicit dynamic analysis method.In the model,the train,ballastless track and bridge are treated as a coupled vibration system with interaction.By simulating the dynamic process of the system,this paper discusses the distribution law of dynamic responses of the bridge deck and the bed slab.It shows the necessity of a base plate for the ballastless track on the long-span plate-truss cable-stayed bridge.Comparison of the influence of different train speeds and stiffness of the elastic vibration-damping pad on the dynamic responses of the bridge deck and the bed slab is also made.The reasonable stiffness value of elastic vibration-damping pad is proposed. | LI Yong Le SU Yang XIA Fei Long ZHANG Nan | 2015 | Science China(Technological Sciences)2015,58,2: | 9 |
| 9 | Coexpression of MYC and BCL-2 predicts prognosis in primary gastrointestinal diffuse large B-cell lymphoma显示文摘AIM:To investigate whether MYC and BCL-2 coexpression has prognostic significance in primary gastrointestinal diffuse large B-cell lymphoma(PGI-DLBCL)patients,and explore its associations with patients’clinical parameters.METHODS:Fresh and paraffin-embedded tumor tissue samples from 60 PGI-DLBCL patients who had undergone surgery at the Tianjin Medical University Cancer Institute and Hospital from January 2005 to May 2010 were obtained,and 30 lymphoid tissue samples from reactive lymph nodes of age-and sexmatched patients represented control samples.Staging and diagnostic procedures were conducted according to the Lugano staging system.All patients had been treated with three therapeutic modalities:surgery,chemotherapy,or radiotherapy.Expression of MYC and BCL-2 were detected at both protein and m RNA levels by immunohistochemistry and real-time RT-PCR.RESULTS:Positive expression levels of MYC and BCL-2proteins were detected in 35%and 45%of patients,respectively.MYC+/BCL-2+protein was present in30%of patients.MYC and BCL-2 protein levels were correlated with high MYC and BCL-2 m RNA expression,respectively(both P<0.05).We found that advancedstage disease(atⅡE-Ⅳ)was associated with MYC and BCL-2 coexpression levels(P<0.05).In addition,MYC+/BCL-2+patients had more difficulty in achieving complete remission than others(P<0.05).Presenceof MYC protein expression only affected overall survivaland progression-free survival(PFS)when BCL-2 proteinwas coexpressed.The adverse prognostic impact ofMYC+/BCL-2+protein on PFS remained significant(P<0.05)even after adjusting for age,Lugano stage,international prognostic index,and BCL-2 proteinexpression in a multivariable model.CONCLUSION:MYC+/BCL-2+patients have worsechemotherapy response and poorer prognosis thanpatients who only express one of the two proteins,suggesting that assessment of MYC and BCL-2 expressionby immunohistochemistry has clinical significance inpredicting clinical outcomes of PGI-DLBCL patients. | Bing Xia Le Zhang Shan-Qi Guo Xiao-Wu Li Fu-Lian Qu Hai-Feng Zhao Lian-Yu Zhang Bao-Cun Sun James You Yi-Zhuo Zhang | 2015 | World Journal of Gastroenterology2015,21,8: | 7 |
| 10 | Effects of potassium deficiency on photosynthesis,chloroplast ultrastructure,ROS,and antioxidant activities in maize(Zea mays L.)显示文摘Potassium(K)deficiency significantly decreases photosynthesis due to leaf chlorosis induced by accumulation of reactive oxygen species(ROS).But,the physiological mechanism for adjusting antioxidative defense system to protect leaf function in maize(Zea mays L.)is unknown.In the present study,four maize inbred lines(K-tolerant,90-21-3 and 099;K-sensitive,D937 and 835)were used to analyze leaf photosynthesis,anatomical structure,chloroplast ultrastructure,ROS,and antioxidant activities.The results showed that the chlorophyll content,net photosynthetic rate(P_n),stomatal conductance(G_s),photochemical quenching(q_P),and electron transport rate of PSII(ETR)in 90-21-3 and 099 were higher than those in D937 and 835 under K deficiency treatment.Parameters of leaf anatomical structure in D937 that were significantly changed under K deficiency treatment include smaller thickness of leaf,lower epidermis cells,and vascular bundle area,whereas the vascular bundle area,xylem vessel number,and area in 90-21-3 were significantly larger or higher.D937 also had seriously damaged chloroplasts and PSII reaction centers along with increased superoxide anion(O_2^-·)and hydrogen peroxide(H_2O_2).Activities of antioxidants,like superoxide dismutase(SOD),catalase(CAT),and ascorbate peroxidase(APX),were significantly stimulated in 90-21-3 resulting in lower levels of O_2^-·and H_2O_2.These results indicated that the K-tolerant maize promoted antioxidant enzyme activities to maintain ROS homeostasis and suffered less oxidative damage on the photosynthetic apparatus,thereby maintaining regular photosynthesis under K deficiency stress. | DU Qi ZHAO Xin-hua XIA Le JIANG Chun-ji WANG Xiao-guang HAN Yi WANG Jing YU Hai-qiu | 2019 | Journal of Integrative Agriculture2019,18,2: | 6 |
| 11 | Oxaliplatin and 5-fluorouracil hepatic infusion with lipiodolized chemoembolization in large hepatocellular carcinoma显示文摘AIM: To investigate transarterial chemoembolization(TACE) with hepatic infusion of oxaliplatin and 5-fluorouracil and Lipiodol chemoembolization in large hepatocellular carcinoma(HCC).METHODS: In this retrospective study, 132 patients with unresectable HCCs larger than 10 cm were treated with hepatic infusion of oxaliplatin and 5-fluorouracil followed by Lipiodol chemoembolization. The primary endpoint was overall survival(OS). Sixteen-week disease-control rate, time to progression(TTP), and major complications were also studied. Univariate and multivariate analyses were performed to identify prognostic factors affecting OS and TTP.RESULTS: A total of 319 procedures were performed in the 132 patients. Eleven(8.3%) patients received radical resection following TACE treatment(median time to initial TACE 4.3 ± 2.3 mo). The median OS and TTP were 10.3 and 3.0 mo respectively, with a 50.0% 16-wk disease-control rate. Major complications were encountered in 6.0%(8/132) of patients following TACE and included serious jaundice in 1.5%(2/132) patients, aleukia in 1.5%(2/132), and hepatic failure in 3.0%(4/132). One patient died within one month due to serious hepatic failure and severe sepsis after receiving the second TACE. The risk factor associated with TTP was baseline alpha-fetoprotein level, and vascular invasion was an independent factor related to OS.CONCLUSION: Hepatic infusion of oxaliplatin and 5-fluorouracil followed by lipiodolized-chemoembolization is a safe and promising treatment for patients with HCCs larger than 10 cm in diameter. | Jing-Huan Li Xiao-Ying Xie Lan Zhang Fan Le Ning-Ling Ge Li-Xin Li Yu-Hong Gan Yi Chen Ju-Bo Zhang Tong-Chun Xue Rong-Xin Chen Jing-Lin Xia Bo-Heng Zhang Sheng-Long Ye Yan-Hong Wang Zheng-Gang Ren | 2015 | World Journal of Gastroenterology2015,21,13: | 6 |
| 12 | Month ahead average daily electricity price profile forecasting based on a hybrid nonlinear regression and SVM model:an ERCOT case study显示文摘With the deregulation of the electric power industry, electricity price forecasting plays an increasingly important role in electricity markets, especially for retailors and investment decision making. Month ahead average daily electricity price profile forecasting is proposed for the first time in this paper. A hybrid nonlinear regression and support vector machine(SVM) model is proposed. Offpeak hours, peak hours in peak months and peak hours in off-peak months are distinguished and different methods are designed to improve the forecast accuracy. A nonlinear regression model with deviation compensation is proposed to forecast the prices of off-peak hours and peak hours in off-peak months. SVM is adopted to forecast the prices of peak hours in peak months. Case studies based on data from ERCOT validate the effectiveness of the proposed hybrid method. | Ziming MA Haiwang ZHONG Le XIE Qing XIA Chongqing KANG | 2018 | Journal of Modern Power Systems and Clean Energy2018,6,2: | 6 |
| 13 | Failure probability estimation of overhead transmission lines considering spatial and temporal variation in severe weather显示文摘Estimation for weather-related failure probability of overhead transmission lines is essential in the reliability assessment of a power system.This paper analyzes the outage and weather data of 110 kV overhead transmission lines in the Guangxi Zhuang Autonomous Region of China during 2011–2014.The result reveals obvious uneven distributions of outage events for time and space due to the spatial and temporal variation of severe weather.Based on the results, an estimation method is proposed in this paper.Split and aggregation is used to smooth the outage and weather data.The poisson model is adopted in our method to investigate the statistic characteristics of transmission line outage events.Regression analysis is applied to obtain the correlation between the weather intensity and history failure rate.Furthermore the method proposed is validated against the empirical outage data. | Shuai YANG Wenjun ZHOU Shiyang ZHU Le WANG Lisha YE Xuezhi XIA Han LI | 2019 | Journal of Modern Power Systems and Clean Energy2019,7,1: | 5 |
| 14 | Seasonal Variation of δ^13C of Four Tree Species: A Biological Integrator of Environmental Variables显示文摘Foliar δ13C values, an indicator of long-term intercellular carbon dioxide concentration and, thus,of long-term water use efficiency (WUE) in plants, were measured for Pinus massoniana Lamb., P. elliottii Engelm., Cunninghamia laceolata (Lamb.) Hook., and Schima superba Gardn. et Champ. in a restored forest ecosystem in the Jiazhu River Basin. Seasonal variation and the relationship between the foliar δ13Cvalues of the four species and environmental factors (monthly total precipitation, monthly average air temperature, relative humidity, atmospheric pressure, and monthly total solar radiation and evaporation)were investigated. The monthly δ13C values and WUE of the four species increased with increasing precipitation, air temperature, solar radiation, and evaporation, whereas δ13C values of the four species decreased with increasing relative humidity and atmospheric pressure. Despite significant differences in δ13C seasonal means for the four species, our results demonstrate a significant convergence in the responses of δ13C values and WUE to seasonal variations in environmental factors among the species investigated and that the δ13C signature for each species gives a strong indication of environmental variables. | Hai-Tao LI Jun XIA Le XIANG Tao LIANG Qi-Jing LIU | 2005 | Journal of Integrative Plant Biology2005,47,12: | 5 |
| 15 | Bilateral swap agreement and renminbi settlement in cross-border trade显示文摘This research empirically examines the impact of China’s renminbi(RMB)Bilateral Swap Agreements(BSAs)on the usage of the currency in cross-border trade transactions.By using a unique dataset from SWIFT including cross-border settlement messages of 91 countries/regions between October 2010 and November 2015,we confirm that the signing of an RMB BSA helps increase the number,value and proportion of the RMB settlement in cross-border trade.Our results are robust with respect to the choice of different models,including multi-level mixed model,two-stage regression model,and difference-in-difference model.In addition to justifying the effectiveness of China’s BSA-signing strategy to promote the RMB usage in trade settlement,our results clarify that the signing of those RMB BSAs is not purely for China’s political ends as some scholars claim. | Ke Song Le Xia | 2020 | Economic and Political Studies2020,8,3: | 5 |
| 16 | Integrative taxonomy of the Russet Bush Warbler Locustella mandelli complex reveals a new species from central China显示文摘Background: The Russet Bush Warbler Locustella(previously Bradypterus) mandelli complex occurs in mountains in the eastern Himalayas, southern China, Vietnam, the Philippines, and Indonesia. The taxonomy has been debated,with one(L. seebohmi) to four(L. seebohmi, L. mandelli, L. montis and L. timorensis) species having been recognised.Methods: We used an integrative approach, incorporating analyses of morphology, vocalizations and a molecular marker, to re-evaluate species limits in the L. mandelli complex.Results: We found that central Chinese L. mandelli differed from those from India through northern Southeast Asia to southeast China in plumage, morphometrics and song. All were easily classified by song, and(wing + culmen)/tail ratio overlapped only marginally. Both groups were reciprocally monophyletic in a mitochondrial cytochrome b(cytb) gene tree, with a mean divergence of 1.0 ± 0.2%. They were sympatric and mostly altitudinally segregated in the breeding season in southern Sichuan province. We found that the Mt Victoria(western Myanmar) population differed vocally from other L. mandelli, but no specimens are available. Taiwan Bush Warbler L. alishanensis was sister to the L. mandelli complex, with the most divergent song. Plumage, vocal and cytb evidence supported the distinctness of the south Vietnamese L. mandelli idonea. The Timor Bush Warbler L. timorensis, Javan Bush Warbler L.montis and Benguet Bush Warbler L. seebohmi differed distinctly in plumage, but among-population song variation in L. montis exceeded the differences between some populations of these taxa, and mean pairwise cytb divergences were only 0.5–0.9%. We also found that some L. montis populations differed morphologically.Conclusions: We conclude that the central Chinese population of Russet Bush Warbler represents a new species,which we describe herein, breeding at mid elevations in Sichuan, Shaanxi, Hubei, Hunan and Guizhou provinces.The taxonomic status of the other allopatric populations is less clear. However, as they differ to a degree comparable with that of the sympatric L. mandelli and the new species, we elevate L. idonea to species status, and retain L. seebohmi and L. montis as separate species, the latter with timorensis as a subspecies. Further research should focus on different populations of L. montis and the Mt Victoria population of L. mandelli. | Per Alstrom Canwei Xia Pamela C Rasmussen Urban Olsson Bo Dai Jian Zhao Paul J Leader Geoff J Carey Lu Dong Tianlong Cai Paul I Holt Hung Le Manh Gang Song Yang Liu Yanyun Zhang Fumin Lei | 2015 | Chinese Birds2015,,2: | 4 |
| 17 | Intravitreous High Expression Level of Netrin-1 in Patients with Proliferative Diabetic Retinopathy显示文摘Purpose:To investigate the significance of netrin-1 and vascular endothelial growth factor(VEGF) in the pathogenesis of retinal angiogenesis,the levels of netrin-1 and VEGF in the vitreous fluid and serum of the proliferative diabetic retinopathy (PDR) and non-proliferative diabetic retinopathy (non-PDR) patients were measured. We then determined the netrin-1 and VEGF expression in the oxygen induced retinopathy (OIR) mice retina. Methods:A total of 18 eyes from 18 patients were included in our study and 10 of them were collected from PDR patients and 8 from non-PDR patients. Undiluted vitreous fluid samples were collected during pars plana vitrectomy. Appropriate blood samples were collected if possible. Netrin-1 and VEGF levels in the vitreous fluid and plasma were determined by Enzyme-linked Immunosorbent Assays.OIR mice models were established,and netrin-1 and VEGF levels were determined by immunohistochemistry analysis. Results:The levels of netrin-1 and VEGF in the vitreous of PDR patients were significantly higher than those in the controls (Mediannetrin-1=509.94 vs.85.91 pg/ml,P<0.001 and MedianVEGF=762.60 vs.77.52 pg/ml,P<0.001). Netrin1 was mainly expressed in GCL and INL of the retina in mice.Both netrin-1 and VEGF were up-regulated in OIR mice. Conclusion:Netrin-1 and VEGF levels were elevated in vitreous fluid of the PDR patients and the OIR mice retina. Therefore,netrin-1 may play an important role in pathological retinal angiogenesis. | Jiaolian Liu Xiaobo Xia Siqi Xiong Yunzheng Le Huizhuo Xu | 2011 | Eye Science2011,26,2: | 4 |
| 18 | DTI and pathological changes in a rabbit model of radiation injury to the spinal cord after ^(125)I radioactive seed implantation显示文摘Excessive radiation exposure may lead to edema of the spinal cord and deterioration of the nervous system. Magnetic resonance imaging can be used to judge and assess the extent of edema and to evaluate pathological changes and thus may be used for the evaluation of spinal cord injuries caused by radiation therapy. Radioactive ^(125)I seeds to irradiate 90% of the spinal cord tissue at doses of 40–100 Gy(D90) were implanted in rabbits at T_(10) to induce radiation injury, and we evaluated their safety for use in the spinal cord. Diffusion tensor imaging showed that with increased D90, the apparent diffusion coefficient and fractional anisotropy values were increased. Moreover, pathological damage of neurons and microvessels in the gray matter and white matter was aggravated. At 2 months after implantation, obvious pathological injury was visible in the spinal cords of each group. Magnetic resonance diffusion tensor imaging revealed the radiation injury to the spinal cord, and we quantified the degree of spinal cord injury through apparent diffusion coefficient and fractional anisotropy. | Xia Cao Le Fang Chuan-yu Cui Shi Gao Tian-wei Wang | 2018 | Neural Regeneration Research2018,13,3: | 4 |
| 19 | NF-κB and FosB mediate inflammation and oxidative stress in the blast lung injury of rats exposed to shock waves显示文摘Blast lung injury(BLI)is the major cause of death in explosion-derived shock waves;however,the mechanisms of BLI are not well understood.To identify the time-dependent manner of BLI,a model of lung injury of rats induced by shock waves was established by a fuel air explosive.The model was evaluated by hematoxylin and eosin staining and pathological score.The inflammation and oxidative stress of lung injury were also investigated.The pathological scores of rats’lung injury at 2 h,24 h,3 days,and 7 days post-blast were 9.75±2.96,13.00±1.85,8.50±1.51,and 4.00±1.41,respectively,which were significantly increased compared with those in the control group(1.13±0.64;P<0.05).The respiratory frequency and pause were increased significantly,while minute expiratory volume,inspiratory time,and inspiratory peak flow rate were decreased in a time-dependent manner at 2 and 24 h post-blast compared with those in the control group.In addition,the expressions of inflammatory factors such as interleukin(IL)-6,IL-8,FosB,and NF-κB were increased significantly at 2 h and peaked at 24 h,which gradually decreased after 3 days and returned to normal in 2 weeks.The levels of total antioxidant capacity,total superoxide dismutase,and glutathione peroxidase were significantly decreased 24 h after the shock wave blast.Conversely,the malondialdehyde level reached the peak at 24 h.These results indicated that inflammatory and oxidative stress induced by shock waves changed significantly in a time-dependent manner,which may be the important factors and novel therapeutic targets for the treatment of BLI. | Hong Wang Wenjuan Zhang Jinren Liu Junhong Gao Le Fang Zhiyong Liu Baoqing Xia Xiaolin Fan Cunzhi Li Qing Lu Airong Qian | 2021 | Acta Biochimica et Biophysica Sinica2021,53,3: | 4 |
| 20 | Response of the sensorimotor cortex of cerebral palsy rats receiving transplantation of vascular endothelial growth factor 165-transfected neural stem cells显示文摘Neural stem cells are characterized by the ability to differentiate and stably express exogenous genes. Vascular endothelial growth factor plays a role in protecting local blood vessels and neurons of newborn rats with hypoxic-ischemic encephalopathy. Transplantation of vascular endothelial growth factor-transfected neural stem cells may be neuroprotective in rats with cerebral palsy. In this study, 7-day-old Sprague-Dawley rats were divided into five groups:(1) sham operation(control),(2) cerebral palsy model alone or with(3) phosphate-buffered saline,(4) vascular endothelial growth factor 165 + neural stem cells, or(5) neural stem cells alone. The cerebral palsy model was established by ligating the left common carotid artery followed by exposure to hypoxia. Phosphate-buffered saline, vascular endothelial growth factor + neural stem cells, and neural stem cells alone were administered into the sensorimotor cortex using the stereotaxic instrument and microsyringe. After transplantation, the radial-arm water maze test and holding test were performed. Immunohistochemistry for vascular endothelial growth factor and histology using hematoxylin-eosin were performed on cerebral cortex. Results revealed that the number of vascular endothelial growth factor-positive cells in cerebral palsy rats transplanted with vascular endothelial growth factor-transfected neural stem cells was increased, the time for finding water and the finding repetitions were reduced, the holding time was prolonged, and the degree of cell degeneration or necrosis was reduced. These findings indicate that the transplantation of vascular endothelial growth factor-transfected neural stem cells alleviates brain damage and cognitive deficits, and is neuroprotective in neonatal rats with hypoxia ischemic-mediated cerebral palsy. | Jielu Tan Xiangrong Zheng Shanshan Zhang Yujia Yang Xia Wang Xiaohe Yu Le Zhong | 2014 | Neural Regeneration Research2014,9,19: | 4 |