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1Distribution 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
2RGF1 INSENSITIVE 1 to 5, a group of LRR receptor-like kinases, are essential for the perception of root meristem growth factor I in Arabidopsis thaliana显示文摘RGF1,分泌的肽荷尔蒙,戏在 Arabidopsis 在根分裂组织开发给角色调音。以前的研究显示功能的 RGF1 需要是在由 tyrosylprotein sulfotransferase 的酷氨酸残余的 sulfated 并且 RGF1 主要经由二个下游的抄写因素调整根分裂组织活动,过多 1 (PLT1 ) 并且 PLT2。然而,细胞外的 RGF1 怎么被一个植物房间察觉,是不清楚的。用基因途径,我们发现了充满白氨酸的重复的 clade 像受体的 kinases,指定了为 RGF1 感觉迟钝 1 (RGI1 ) 到 RGI5,用作 RGF1 的受体。二独立 rgi1 rgi2 rgi3 rgi4 rgi5 五倍的异种与分裂组织的一种小尺寸显示一致的短主要的根显型。四倍的异种显示出的 rgi1 rgi2 rgi3 rgi4 到 RGF1 的显著地减少的敏感,和五倍的异种对 RGF1 完全感觉迟钝。PLT1 和 PLT2 的表示在五倍的异种是几乎无法发现的。一个 RGI2 倡导者极大地在五倍的异种驾驶的 PLT2 的宫外的表示救了它的根分裂组织缺点。RGI 之一, RGI1,随后详细生物化学地被分析。在 vitro 点弄污和下拉,分析显示 RGI1 能身体上与 RGF1 交往。RGF1 的外长的申请能快速并且同时导致 RGI1 的 phosphorylation 和 ubiquitination,显示 RGI1 能察觉并且 transduce RGF1 肽信号。然而,激活的 RGI1 多半很快被翻。这些结果表明那 RGI,充当 RGF1 的受体,在在 Arabidopsis thaliana 的 RGF1-PLT-mediated 根分裂组织开发的戏必需品角色。Yang Ou Xiaoting Lu Quaner Zi Qingqing Xun Jingjie Zhang Yujun Wu Hongyong Shi Zhuoyun Wei Baolin Zhao Xiaoyue Zhang Kai He Xiaoping Gou Chuanyou Li Jia Li 2016Cell Research2016,26,6:18
3Identification of rice cultivars with low brown rice mixed cadmium and lead contents and their interactions with the micronutrients iron,zinc,nickel and manganese显示文摘Paddy fields in mining areas are usually co-contaminated by a cocktail of mixed toxic heavy metals(e.g.,Cd and Pb in Pb/Zn mines).However,previous studies on rice cultivars screened for effective metal exclusion have mostly focused on individual metals,and have been conducted under pot-trial or hydroponic solution conditions.This study identified rice cultivars with both low Cd and Pb accumulation under Cd-and Pb-contaminated field conditions,and the interactions of the toxic elements Cd and Pb with the micronutrient elements Fe,Zn,Mn and Ni were also studied.Among 32 rice cultivars tested,there were significant differences in Cd(0.06-0.59 mg/kg) and Pb(0.25-3.15 mg/kg) levels in their brown rice,and similar results were also found for the micronutrient elements.Significant decreases in concentrations of Fe and Mn were detected with increasing Cd concentrations and a significant elevation in Fe,Mn and Ni with increasing Pb concentrations.A similar result was also shown by Cd and Ni.Three cultivars were identified with a combination of low brown rice Cd and Pb,high micronutrient and grain yield(Wufengyou 2168,Tianyou 196 and Guinongzhan).Present results suggest that it is possible to breed rice cultivars with low mixed toxic element(Cd,Pb) and high micronutrient contents along with high grain yields,thus ensuring food safety and quality.Bing Li Xun Wang Xiaoli Qi Lu Huang Zhihong Ye 2012Journal of Environmental Sciences2012,24,10:18
4Downstaging and resection of hepatocellular carcinoma in patients with extrahepatic metastases after stereotactic therapy显示文摘Background:A combination of tyrosine kinase inhibitors(TKIs)and anti-PD-1 antibodies with local regional therapy has elicited yield substantial clinical benefits in patients who have hepatocellular carcinoma(HCC)with extrahepatic metastases.Using this treatment strategy to convert HCC patients with extrahepatic metastases from unresectable to resectable has not yet been reported.Methods:Consecutive hepatocellular carcinoma patients with extrahepatic metastases who received first-line therapy with a combination of TKIs and anti-PD-1 antibodies and at least one local regional therapy were analysed.Results:Nine patients with localized disease who received first-line systemic therapy were enrolled.At baseline,all of them had oligometastatic disease,namely,Barcelona Clinic Liver Cancer stage C(or Chinese Liver Cancer stage IIIB).The most common treatment administered was lenvatinib plus anti-PD-1 antibody and transarterial chemoembolization,and the median time span from systemic therapy to surgery was 3.2(IQR,2.8-6.2)months.Three patients achieved a pathological complete response.Six patients underwent laparoscopic surgery,and the other 3 patients underwent open surgery.After a median follow-up of 10.2(IQR,8.6-20.0)months,7 patients survived without disease recurrence,and 2 experienced tumour recurrence.All patients had any-grade AEs,and 55.6%of the patients experienced grade 3 AEs.Fatigue was the most common AE,followed by elevated aminotransferase levels and hypertension.Conclusions:Stereotactic therapy is a feasible conversion therapy for HCC patients with extrahepatic metastases to become resectable.This is the first study to analyse therapeutic outcomes of patients receiving these therapies for HCC with extrahepatic metastases.Xiaobo Yang Haifeng Xu Bangyou Zuo Xu Yang Jin Bian Junyu Long Dongxu Wang Junwei Zhang Cong Ning Yanyu Wang Ziyu Xun Yunchao Wang Xin Lu Yilei Mao Xinting Sang Haitao Zhao 2021Hepatobiliary Surgery and Nutrition2021,10,4:17
5Discovery of biclonal origin and a novel oncogene SLC12A5 in colon cancer by single-cell sequencing显示文摘单个房间的定序是为描出的一个强大的工具为个性化的癌症管理的同种细胞的关系和识别关键司机基因。这里,我们执行了结肠癌的一个盒子的单个房间的定序的分析。人口遗传分析在肿瘤房间人口识别了二独立克隆。主要肿瘤克隆作为早 oncogenic 事件怀有 APC 和 TP53 变化,而次要的克隆包含了优势的 CDC27 和 PABPC1 变化。在这二克隆的次要的克隆支持的 APC 和 TP53 变化的缺席从二细胞的起源被导出。体的变化等位基因频率系列的检查另外 21 个整个织物的定序 exome 的盒子在结肠癌揭示了同种细胞的起源的异质。下次,我们识别了在单个房间的水平显示出变化的高频率,但是在人口水平展出了低流行的变异的基因 SLC12A5。变异的 SLC12A5 的功能的描述在结肠癌揭示了它的潜在的 oncogenic 效果。我们的学习在单个房间的水平支持提供第一条 exome 宽的证据那结肠癌能具有 biclonal 起源,并且建议在一个队的低流行的变化可以也在单个水平起重要 protumorigenic 作用。Chang Yu Jun Yu Xlaotlan Yao Wllham KK Wu Youyong Lu Senwel Tang Xiangchun Li Li Bao Xiaoxing Li Yong Hou Renhua Wu Min Jian Ruoyan Chen Fan Zhang Lixia Xu Fan Fan Jun He Qiaoyi Liang Hongyi Wang Xueda Hu Minghui He Xiang Zhang Hancheng Zheng Qibin Li Hanjie Wu Yan Chen Xu Yang Shida Zhu Xun Xu Huanming Yang Jian Wang Xiuqing Zhang Joseph JY Sung Yingrui Li Jun Wang 2014Cell Research2014,,6:16
6In-hospital delay to primary angioplasty for patients with ST-elevated myocardial infarction between cardiac specialized hospitals and non-specialized hospitals in Beijing, China显示文摘背景证据显示在有圣举起心肌的梗塞(STEMI ) 的病人的那早灌注治疗减少复杂并发症。这研究被承担在中国北京为病人把在里面医院延期与在专业化医院和非专业化的医院之间的 STEMI 作比较到主要经皮的冠的干预(PPCI ) 。二专业化医院和能够执行 PPCI 的十五所非专业化的医院的方法被选择参予这研究。308 个病人的一个总数,在 12 以内,在 2005 年 11 月 1 日和 2006 年 12 月 31 日之间的症状和经历的 PPCI 的发作的小时被注册。数据被中部的在里面医院延期是的医药 records.Results 的结构化的会见和评论收集(interquartile 范围 105 ~ 180 ) 98 纪录,并且 16.9% 病人在 90 分钟以内被对待。全部的在里面医院延期和 ECG-to-treatment 决策时间比在心脏的专业化医院里在非专业化的医院里是更长的(147 分钟对 120 分钟, P < 0.001;55 分钟对 45 分钟, P=0.035 ) 。在控制惊讶的因素以后,非专业化的医院独立地与在的增加的风险被联系上面在那里的在里面医院 delays.Conclusions 中部是在在医院和为有在北京的 STEMI 的病人的 PPCI 的管理的到达之间的实质的在里面医院延期。因为 ECG-to-treatment 决策的一更短的时间,进入心脏的专业化医院的病人比那些有更短的在里面医院延期到非专业化的医院。XUN Yi-wen YANG Jin-gang SONG Li SUN Yi-hong LU Chang-lin YANG Yue-jin HU Da-yi 2010Chinese Medical Journal2010,,7:10
7Comparison between different reconstruction routes in esophageal squamous cell carcinoma显示文摘AIM:To compare postoperative complications and prognosis of esophageal squamous cell carcinoma patients treated with different routes of reconstruction. METHODS:After obtaining approval from the Medical Ethics Committee of the Sun Yat-Sen University Cancer Center, we retrospectively reviewed data from 306 consecutive patients with histologically diagnosed esophageal squamous cell carcinoma who were treated between 2001 and 2011. All patients underwent radical McKeown-type esophagectomy with at least two-field lymphadenectomy. Regular follow-up was performed in our outpatient department. Postoperative complica-tions and long-term survival were analyzed by treatment modality, baseline patient characteristics, and operative procedure. Data from patients treated via the retrosternal and posterior mediastinal routes were compared. RESULTS:The posterior mediastinal and retrosternal reconstruction routes were employed in 120 and 186 patients, respectively. Pulmonary complications were the most common complications experienced during the postoperative period (46.1% of all patients; 141/306). Compared to the retrosternal route, the posterior mediastinal reconstruction route was associated with a lower incidence of anastomotic stricture (15.8% vs 27.4%, P = 0.018) and less surgical bleeding (242.8 ± 114.2 mL vs 308.2 ± 168.4 mL, P < 0.001). The median survival time was 26.8 mo (range:1.6-116.1 mo). Upon uni/multivariate analysis, a lower preoperative albumin level (P = 0.009) and a more advanced pathological stage (pT; P = 0.006; pN; P < 0.001) were identified as independent factors predicting poor prognosis. The reconstruction route did not influence prognosis (P = 0.477). CONCLUSION:The posterior mediastinal route of reconstruction reduces incidence of postoperative complications but does not affect survival. This route is recommended for resectable esophageal squamous cell carcinoma.Yu-Zhen Zheng Shu-Qin Dai Wei Li Xun Cao Xin Wang Jian-Hua Fu Peng Lin Lan-Jun Zhang Bin Lu Jun-Ye Wang 2012World Journal of Gastroenterology2012,18,39:10
8Clinical features of acute hepatitis E super-infections on chronic hepatitis B显示文摘AIM To examine the clinical features and risk factors for adverse outcomes in chronic hepatitis B(CHB) superimposed with hepatitis E virus(HEV).METHODS This retrospective cohort study included 228 patients with acute HEV infection(showing clinical acute hepatitis symptomology and positivity for anti-HEV immunoglobulin M) with underlying CHB(confirmed by positivity for hepatitis B surface antigen and/or hepatitis B virus(HBV) DNA over 6 mo) who had been admitted to the Shanghai Public Health Clinical Center, which represents the regional tertiary hospital for infectious diseases in Shanghai city, China. Data for adverse outcomes were collected, and included severe liver diseases(defined as liver failure and/or acute liver decompensation) and liver-related mortality. Logistic regression modeling was performed to determine the risk factors for adverse outcomes.RESULTS The symptoms caused by superimposed acute hepatitis E(AHE) were much more severe in cirrhotic patients(n = 94) than in non-cirrhotic patients(n = 134), as evidenced by significantly higher liver complications(77.7% vs 28.4%, P < 0.001) and mortality rate(21.3% vs 7.5%, P = 0.002). Most of the cirrhotic patients(n = 85, 90.4%) had no prior decompensation. Among the non-cirrhotic patients, superimposed AHE caused progressively more severe diseases that corresponded with the CHB disease stages, from immune tolerant to immune reactivation phases. Few risk factors were identified in the cirrhotic patients, but risk factors for non-cirrhotic patients were found to be intermediate HBV DNA levels(OR: 5.1, P = 0.012), alcohol consumption(OR: 6.4, P = 0.020), and underlying diabetes(OR: 7.5, P = 0.003) and kidney diseases(OR: 12.7, P = 0.005). Only 28.7% of the cirrhotic patients and 9.0% of the non-cirrhotic patients had received anti-HBV therapy previously and, in all cases, the efficacy had been suboptimal. CONCLUSION CHB-related cirrhosis and intermediate HBV DNA level were associated with severe disease in superinfected patients, and successful antiviral treatment might counter this outcome.Chong Chen Shu-Ye Zhang Dan-Dan Zhang Xin-Yan Li Yu-Ling Zhang Wei-Xia Li Jing-Jing Yan Min Wang Jing-Na Xun Chuan Lu Yun Ling Yu-Xian Huang Liang Chen 2016World Journal of Gastroenterology2016,22,47:10
9R-CHOP regimen can significantly decrease the risk of disease relapse and progression in patients with non-germinal centerB-cell subtype diffuse large B-cell lymphoma显示文摘To further explore the role of rituximab when added to the CHOP-like regimen in the treatment of immunohistochemically defined non-germinal center B-cell subtype (non-GCB) diffuse large B-celllymphoma (DLBCL), 159 newly diagnosed DLBCL patients were studied retrospectively based on the immunohistochemical evaluation of CD10, Bcl-6, MUM-1, and Bcl-2. Altogether, 110 patients underwent the CHOP-like regimen, and rituximab was added for the other 49 patients. Cox regression analysis showed that compared with the CHOP-like regimen, the rituximab-based regimen (R-CHOP regimen)significantly decreased the risk of disease relapse and progression in CD10-negative patients (P=0.001),Bcl-6-negative patients (P=0.01), and MUM-1-positive patients (P=0.003). The risk of disease relapse in patients with non-GCB subtype (P=0.002) also decreased. In contrast, patients with the opposite immunohistochemical marker expression profile and GCB subtype did not benefit from treatment with the R-CHOP regimen. In addition, non-GCB subtype patients had a significantly higher expression rate of Bcl-2 than GCB subtype patients (P=0.042). Although univariate analysis found that both Bcl-2-positive and-negative patients had significantly higher event-free survival rates with the R-CHOP regimen, only Bcl-2 positivity (P=0.004) maintained significance in the Cox regression analysis. We conclude that the addition of rituximab can significantly improve the prognosis of patients with non-GCB subtype DLBCL, which is closely related to the expression of CD10, Bcl-6, MUM-1, and Bcl-2.Xiao-Hui He Bo Li Sheng Yang Ning Lu Xun Zhang Shuang-Mei Zou Ye-Xiong Li Yong-Wen Song Shan Zheng Mei Dong Sheng-Yu Zhou dian-Liang Yang Peng Liu Chang-Gong Zhang Yan Qin Feng-Yi Feng Yuan-Kai Shi 2012Chinese Journal of Cancer2012,31,6:9
10Exosome-based small RNA delivery:Progress and prospects显示文摘RNA interfering(RNAi), mediated by small interfering RNAs and microRNAs, is currently one of the most promising tools of gene therapy. Small RNAs are capable of inducing specific post-transcriptional gene silencing, providing a potentially effective platform for the treatment of a wide array of diseases. However, similar to other nucleic acid-based drugs,the major hurdle of RNAi therapy is lack of efficient and non-immunogenic delivery vehicles. Currently, viruses, synthetic polymers, and lipid-based carriers are among the most widely studied vehicles for small RNA delivery. However, many drawbacks are reported to be associated with these delivery vehicles. There is a pressing need to replace them with more efficient and better-tolerated approaches. Exosomes secreted from the endocytic compartment of live cells, are a subtype of endogenous extracellular vesicles that transfer genetic and biochemical information among different cells, thus playing an important role in cellcell communication. Recently, accumulating attention has been focused on harnessing exosomes as nanaocarriers for small RNAs delivery. Due to their natural role in shuttling endogenous nucleic acid in our body, exosomes may exhibit higher delivery efficiency, lower immunogenicity, and better compatibility than existing foreign RNA carriers. Importantly,exosomes own intrinsic homing capacity that can guide small RNAs across natural membranous barriers. Moreover, such a capacity can be further improved by adding appropriate targeting moieties. In this manuscript, we briefly review the progress and challenges of RNAi therapy, and discuss the potential of exosomes' applications in small RNA delivery with focus on the most recent advances in exosome-based small RNA delivery for disease therapy.Mei Lu Haonan Xing Zhe Xun Tianzhi Yang Pingtian Ding Cuifang Cai Dongkai Wang Xiaoyun Zhao 2018Asian Journal of Pharmaceutical Sciences2018,13,1:8
11Extracellular matrix from human umbilical cordderived mesenchymal stem cells as a scaffold for peripheral nerve regeneration显示文摘The extracellular matrix,which includes collagens,laminin,or fibronectin,plays an important role in peripheral nerve regeneration.Recently,a Schwann cell-derived extracellular matrix with classical biomaterial was used to mimic the neural niche.However,extensive clinical use of Schwann cells remains limited because of the limited origin,loss of an autologous nerve,and extended in vitro culture times.In the present study,human umbilical cord-derived mesenchymal stem cells(h UCMSCs),which are easily accessible and more proliferative than Schwann cells,were used to prepare an extracellular matrix.We identified the morphology and function of h UCMSCs and investigated their effect on peripheral nerve regeneration.Compared with a non-coated dish tissue culture,the h UCMSC-derived extracellular matrix enhanced Schwann cell proliferation,upregulated gene and protein expression levels of brain-derived neurotrophic factor,glial cell-derived neurotrophic factor,and vascular endothelial growth factor in Schwann cells,and enhanced neurite outgrowth from dorsal root ganglion neurons.These findings suggest that the h UCMSC-derived extracellular matrix promotes peripheral nerve repair and can be used as a basis for the rational design of engineered neural niches.Bo Xiao Feng Rao Zhi-yuan Guo Xun Sun Yi-guo Wang Shu-yun Liu Ai-yuan Wang Quan-yi Guo Hao-ye Meng Qing Zhao Jiang Peng Yu Wang Shi-bi Lu 2016Neural Regeneration Research2016,11,7:8
12Chromosome-level genome of Himalayan yew provides insights into the origin and evolution of the paclitaxel biosynthetic pathway显示文摘Taxus,commonly known as yew,is a well-known gymnosperm with great ornamental and medicinal value.In this study,by assembling a chromosome-level genome of the Himalayan yew(Taxus wallichiana)with 10.9 Gb in 12 chromosomes,we revealed that tandem duplication acts as the driving force of gene family evolution in the yew genome,resulting in the main genes for paclitaxel biosynthesis,i.e.those encoding the taxadiene synthase,P450s,and transferases,being clustered on the same chromosome.The tandem duplication may also provide genetic resources for the nature to sculpt the core structure of taxoids at different positions and subsequently establish the complex pathway of paclitaxel by neofunctionalization.Furthermore,we confirmed that there are two genes in the cluster encoding isoenzymes of a known enzyme in the paclitaxel biosynthetic pathway.The reference genome of the Himalayan yew will serve as a platform for decoding the complete biosynthetic pathway of paclitaxel and understanding the chemodi-versity of taxoids in gymnosperms.Jian Cheng Xiao Wang Xiaonan Liu Xiaoxi Zhu Zihe Li Huanyu Chu Qian Wang QianQian Lou Bijun Cai Yiqun Yang Xiaoyun Lu Kai Peng Dingyu Liu Yuwan Liu Lina Lu Huan Liu Ting Yang Qijin Ge Chengcheng Shi Guichun Liu Zhiwei Dong Xun Xu Wen Wang Huifeng Jiang Yanhe Ma 2021Molecular Plant2021,14,7:6
13A neurotrophic peptide-functionalized self-assembling peptide nanofiber hydrogel enhances rat sciatic nerve regeneration显示文摘神经指导水管(NGC ) 是为外部神经新生的自体同源的神经的一种潜在的选择。有希望的治疗学的策略是用物理或化学的指导暗示修改神经指导水管 intraluminal 微型环境。在这研究,神经营养的 peptide-functionalized 能在 vitro 支持 PC12 细胞粘附,增长,和 neuronal 区别的自我装配的肽 nanofiber hydrogel 是在一个空 chitosan 试管(hCST ) 的腔的 prefilled 在一只老鼠加速 axonal 新生臀部的神经缺点模型。functionalized 自我装配的肽被介绍神经营养的肽开发(RGI, RGIDKRHWNSQ ) 源于导出大脑的神经营养的因素(BDNF ) 到自我装配的肽 RADA16 的 C 终点 -- 我(交流 --(RADA )4-CONH2) 。词法,组织学, electrophysiological,和功能的分析证明 RGI-functionalized,自我装配,肽 nanofiber hydrogel RAD/RGI 能生产显著地与提高的 re-myelination 和马达改进了 axonal 新生的神经营养的微型环境功能的恢复。Jiaju Lu Xun Sun Heyong Yin Xuezhen Shen Shuhui Yang Yu Wang Wenli Jiang Yue Sun Lingyun Zhao Xiaodan Sun Shibi Lu Antonios G. Mikos Jiang Peng Xiumei Wang 2018Nano Research2018,11,9:6
14Drone-based entanglement distribution towards mobile quantum networks显示文摘Satellites have shown free-space quantum-communication ability;however,they are orbit-limited from full-time all-location coverage.Meanwhile,practical quantum networks require satellite constellations,which are complicated and expensive,whereas the airborne mobile quantum communication may be a practical alternative to offering full-time all-location multi-weather coverage in a cost-effective way.Here,we demonstrate the first mobile entanglement distribution based on drones,realizing multi-weather operation including daytime and rainy nights,with a Clauser-Horne-Shimony-Holt S-parameter measured to be 2.41±0.14 and 2.49±0.06,respectively.Such a system shows unparalleled mobility,flexibility and reconfigurability compared to the existing satellite and fiber-based quantum communication,and reveals its potential to establish a multinode quantum network,with a scalable design using symmetrical lens diameter and single-mode-fiber coupling.All key technologies have been developed to pack quantum nodes into lightweight mobile platforms for local-area coverage,and arouse further technical improvements to establish wide-area quantum networks with high-altitude mobile communication.Hua-Ying Liu Xiao-Hui Tian Changsheng Gu Pengfei Fan Xin Ni Ran Yang Ji-Ning Zhang Mingzhe Hu Jian Guo Xun Cao Xiaopeng Hu Gang Zhao Yan-Qing Lu Yan-Xiao Gong Zhenda Xie Shi-Ning Zhu 2020National Science Review2020,7,5:6
15Anti-inflammatory effects of a synthetic peptide derived from pigment epithelium-derived factor on H2O2-induced corneal injury in vitro显示文摘Lu Yi Feng Jia Yang Lili Tang Hongfeng Jin Ji Xu Xun 2014Chinese Medical Journal2014,,8:6
16Recent advances in mRNA vaccine delivery显示文摘Lu Tan Xun Sun 2018Nano Research2018,11,10:5
17A Model of Hydrothermal Dolomite Reservoir Facies in Precambrian Dolomite, Central Sichuan Basin, SW China and its Geochemical Characteristics显示文摘Hydrothermal mineral assemblages and related hydrothermally enhanced fracturing are common in the Precambrian Dengying Formation of Central Sichuan Basin. Petrographic and geochemical analyses of core samples show that the hydrothermal dolomite reservoirs of Dengying Formation consist of four main types of pores in the reservoir facies. These include: 1) hydrothermal dissolution vug(or pore), 2) intercrystalline pore, 3) residual inter-breccia vug(or pore), and 4) enlarged dissolved-fracture. There are three different fabrics dolomite in hydrothermal dolomite reservoirs, namely, saddle dolomite, fine-medium dolomite and micritic dolomite. Micritic dolomite is the original lithology of host rock. Saddle dolomite with curved or irregular crystal faces was directly crystallized from hydrothermal fluids(average temperature 192°C). Fine-medium dolomites are the products of recrystallization of micritic dolomite, resulting in abnormal geochemical characteristics, such as slight depletion of δ^(18)O, significant enrichment of Mn-Fe and ^(87)Sr/^(86)Sr, and positive Eu anomaly. A model for the distribution of various hydrothermal dolomite reservoir facies is proposed here, which incorporates three fundamental geological controls: 1) extensional tectonics and tectono-hydrothermal events(i.e., the Xingkai Taphrogenesis of Late Sinian-Early Cambrian, and Emei Taphrogenesis of Late Permian), 2) hydrothermal fluid storage in clastic rocks with large thickness(e.g., Nanhua System of Chengjiang Formation and part of Doushantuo Formation), and 3) confining bed for hydrothermal fluids(such as, the shale in Qiongzhusi Formation). The supply of hydrothermal fluid is critical. Large basement-rooted faults and associated grid-like fracture system may function as the channels for upward migration of hydrothermal fluid flow. The intersection of the above-mentioned faults(including the conversion fault), especially transtensional sags above negative flower structures on wrench faults can serve as a key target for future hydrocarbon exploration.GU Yifan ZHOU Lu JIANG Yuqiang JIANG Chan LUO Mingsheng ZHU Xun 2019Acta Geologica Sinica(English Edition)2019,93,1:5
18Performance Analysis of WLAN Medium Access Control Protocols in Simulcast Radio-Over-Fiber-Based Distributed Antenna Systems显示文摘The performance of three wireless local-area network(WLAN) media access control(MAC) protocols is investigated and compared in the context of simulcast radioover-fiber-based distributed antenna systems(RoF-DASs) where multiple remote antenna units(RAUs) are connected to one access point(AP) with different-length fiber links.The three WLAN MAC protocols under investigation are distributed coordination function(DCF) in basic access mode,DCF in request/clear to send(RTS/CTS) exchange mode,and point coordination function(PCF).In the analysis,the inter-RAU hidden nodes problems and fiber-length difference effect are both taken into account.Results show that adaptive PCF mechanism has better throughput performances than the other two DCF modes,especially when the inserted fiber length is short.LI Jianqiang FAN Yuting CHEN Hao LU Xun XU Kun 2014China Communications2014,11,5:5
19Contribution of Baroreflex Afferent Pathway to NPY-Mediated Regulation of Blood Pressure in Rats显示文摘Neuropeptide Y (NPY), a metabolism-related cardiovascular factor, plays a crucial role in blood pressure(BP) regulation via peripheral and central pathways. The expression of NPY receptors (Y1R/Y2R) specific to baroreflex afferents impacts on the sexually dimorphic neural control of circulation. This study was designed to investigate the expression profiles of NPY receptors in the nodose ganglion (NG) and nucleus tractus solitary (NTS) under hypertensive conditions. To this end, rats with hypertension induced by NG-nitro-L-arginine methylester (L-NAME) or high fructose drinking (HFD), and spontaneously hypertensive rats (SHRs) were used to explore the effects/mechanisms of NPY on BP using functional, molecular, and electrophysiological approaches. The data showed that BP was elevated along with baroreceptor sensitivity dysfunction in model rats;Y1R was up-or down-regulated in the NG or NTS of male and female HFD/L-NAME groups,while Y2R was only down-regulated in the HFD groups as well as in the NG of the male L-NAME group. In SHRs,Y1R and Y2R were both down-regulated in the NTS, and not in the NG. In addition to NPY-mediated energy homeostasis, leptin-melanocortin activation may be essential for metabolic disturbance-related hypertension. We found that leptin and a-melanocyte stimulating hormone (aMSH) receptors were aberrantly down-regulated in HFD rats. In addition, a-MSH concentrations were reduced and NPY concentrations were elevated in the serum and NTS at 60 and 90 min after acute leptin infusion. Electrophysiological recordings showed that the decay time-constant and area under the curve of excitatory post-synaptic currents were decreased by Y1R activation in A-types, whereas, both were increased by Y2R activation in Ah-or C-types. These results demonstrate that sex-and afferent-specific NPY receptor expression in the baroreflex afferent pathway is likely to be a novel target for the clinical management of metabolism-related and essential hypertension.Yang Liu Shu-Yang Zhao Yan Feng Jie Sun Xiao-Long Lu Qiu-Xin Yan Ying Li Zhuo Liu Lu-Qi Wang Xun Sun Shijun Li Guo-Fen Qiao Bai-Yan Li 2020Neuroscience Bulletin2020,36,4:5
20Multimodal Identification by Transcriptomics and Multiscale Bioassays of Active Components in Xuanfeibaidu Formula to Suppress Macrophage-Mediated Immune Response显示文摘Xuanfeibaidu Formula (XFBD) is a Chinese medicine used in the clinical treatment of coronavirus disease 2019 (COVID-19) patients. Although XFBD has exhibited significant therapeutic efficacy in clinical practice, its underlying pharmacological mechanism remains unclear. Here, we combine a comprehensive research approach that includes network pharmacology, transcriptomics, and bioassays in multiple model systems to investigate the pharmacological mechanism of XFBD and its bioactive substances. High-resolution mass spectrometry was combined with molecular networking to profile the major active substances in XFBD. A total of 104 compounds were identified or tentatively characterized, including flavonoids, terpenes, carboxylic acids, and other types of constituents. Based on the chemical composition of XFBD, a network pharmacology-based analysis identified inflammation-related pathways as primary targets. Thus, we examined the anti-inflammation activity of XFBD in a lipopolysaccharide-induced acute inflammation mice model. XFBD significantly alleviated pulmonary inflammation and decreased the level of serum proinflammatory cytokines. Transcriptomic profiling suggested that genes related to macrophage function were differently expressed after XFBD treatment. Consequently, the effects of XFBD on macrophage activation and mobilization were investigated in a macrophage cell line and a zebrafish wounding model. XFBD exerts strong inhibitory effects on both macrophage activation and migration. Moreover, through multimodal screening, we further identified the major components and compounds from the different herbs of XFBD that mediate its anti-inflammation function. Active components from XFBD, including Polygoni cuspidati Rhizoma, Phragmitis Rhizoma, and Citri grandis Exocarpium rubrum, were then found to strongly downregulate macrophage activation, and polydatin, isoliquiritin, and acteoside were identified as active compounds. Components of Artemisiae annuae Herba and Ephedrae Herba were found to substantially inhibit endogenous macrophage migration, while the presence of ephedrine, atractylenolide I, and kaempferol was attributed to these effects. In summary, our study explores the pharmacological mechanism and effective components of XFBD in inflammation regulation via multimodal approaches, and thereby provides a biological illustration of the clinical efficacy of XFBD.Lu Zhao Hao Liu Yingchao Wang Shufang Wang Dejin Xun Yi Wang Yiyu Cheng Boli Zhang 2023Engineering2023,,1:5
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