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240篇 您的检索式:作者名="Yanan Yang"
    题名 作者 年代 出处 被引量
1Mechanical behavior of coal under different mining rates:A case study from laboratory experiments to field testing显示文摘During the development of hot dry rock,the research on thermal fatigue damage caused by thermal shock of cold and heat cycles is the basis that ensures the long-term utilization of geothermal resources,but there are not enough relevant studies at present.Based on this,the thermal damage tests of granite at different temperatures(250,350,450°C)and quenching cycles(1,5,10,15 cycles)were carried out.Preliminary reveals the damage mechanism and heat transfer law of the quenching cycle effect on hot dry rock.The results show that with the increase of temperature and cycles,the uneven thermal expansion of minerals and the thermal shock caused by quenching promote the crack development of granite,resulting in the decrease of P-wave velocity,thermal conductivity and uniaxial compressive strength of granite.Meanwhile,the COMSOL was used to simulate the heat transfer of hot dry rock under different heat treatment conditions.It concluded that the increase in the number of quenching cycles reduced the heat transfer capacity of the granite,especially more than 10 quenching cycles,which also reflects that the thermal fatigue damage leads to a longer time for the temperature recovery of the hot dry rock mass.In addition,the three-dimensional nonlinear fitting relationship among thermal conductivity,temperature and cycle number was established for the first time,which can better reveal the change rule of thermal conductivity after quenching thermal fatigue effect of hot dry rock.The research results provide theoretical support for hot dry rock reservoir reconstruction and production efficiency evaluation.Mingzhong Gao Jing Xie Yanan Gao Wenyong Wang Cong Li Bengao Yang Junjun Liu Heping Xie 2021International Journal of Mining Science and Technology2021,31,5:39
2A novel quantified bitterness evaluation model for traditional Chinese herbs based on an animal ethology principle显示文摘Traditional Chinese herbs(TCH) are currently gaining attention in disease prevention and health care plans. However, their general bitter taste hinders their use. Despite the development of a variety of taste evaluation methods, it is still a major challenge to establish a quantitative detection technique that is objective, authentic and sensitive. Based on the two-bottle preference test(TBP), we proposed a novel quantitative strategy using a standardized animal test and a unified quantitative benchmark. To reduce the difference of results, the methodology of TBP was optimized. The relationship between the concentration of quinine and animal preference index(PI) was obtained. Then the PI of TCH was measured through TBP, and bitterness results were converted into a unified numerical system using the relationship of concentration and PI. To verify the authenticity and sensitivity of quantified results,human sensory testing and electronic tongue testing were applied. The quantified results showed a good discrimination ability. For example, the bitterness of Coptidis Rhizoma was equal to 0.0579 mg/mL quinine, and Nelumbinis Folium was equal to 0.0001 mg/mL. The validation results proved that the newassessment method for TCH was objective and reliable. In conclusion, this study provides an option for the quantification of bitterness and the evaluation of taste masking effects.Xue Han Hong Jiang Li Han Xi Xiong Yanan He Chaomei Fu Runchun Xu Dingkun Zhang Junzhi Lin Ming Yang 2018Acta Pharmaceutica Sinica B2018,8,2:17
3Effects of residual organics in municipal wastewater on hydrogenotrophic denitrifying microbial communities显示文摘Hydrogenotrophic denitrification is promising for tertiary nitrogen removal from municipal wastewater. To reveal the influence of residual organics in municipal wastewater on hydrogenotrophic denitrifiers, we adopted high-throughput 16 S r RNA gene amplicon sequencing to examine microbial communities in hydrogenotrophic denitrification enrichments. Using effluent from a municipal wastewater treatment plant as water source, COD,nitrate and p H were controlled the same except for a gradient of biodegradable carbon(i.e., primary effluent(PE), secondary effluent(SE), or combined primary and secondary effluent(CE)). Inorganic synthetic water(IW) was used as a control. Hydrogenophaga, a major facultative autotroph, accounted for 17.1%, 5.3%, 32.7% and 12.9% of the sequences in PE, CE,SE and IW, respectively, implicating that Hydrogenophaga grew well with or without organics.Thauera, which contains likely obligate autotrophic denitrifiers, appeared to be the most dominant genera(23.6%) in IW and accounted for 2.5%, 4.6% and 8.9% in PE, CE and SE,respectively. Thermomonas, which is related to heterotrophic denitrification, accounted for 4.2% and 7.9% in PE and CE fed with a higher content of labile organics, respectively.In contrast, Thermomonas was not detected in IW and accounted for only 0.6% in SE. Our results suggest that Thermomonas are more competitive than Thauera in hydrogenotrophic denitrification with biodegradable organics. Moreover, facultative autotrophic denitrifiers,Hydrogenophaga, are accommodating to residual organic in effluent wastewater, thus we propose that hydrogenotrophic denitrification is amenable for tertiary nitrogen removal.Wei Xing Jinlong Li Peng Li Chong Wang Yanan Cao Desheng Li Yunfeng Yang Jizhong Zhou Jiane Zuo 2018Journal of Environmental Sciences2018,30,3:16
4The Coix Genome Provides Insights into Panicoideae Evolution and Papery Hull Domestication显示文摘Coix is a grass crop domesticated as early as the Neolithic era.It is still widely cultivated for both highly nutritional food and medicinal use.However,the genetic study and breeding of this crop are hindered by the lack of a sequenced genome.Here,we report de novo sequencing and assembly of the 1619-Mb genome of Coix,and annotation of 75.39%repeats and 39629 protein-coding genes.Comparative genomics analysis showed that Coix is more closely related to sorghum than maize,but intriguingly only Coix and maize had a recent genome duplication event,which was not detected in sorghum.We further constructed a genetic map and mapped several important traits,especially the strength of hull.Selection of papery hull(thin:easy dehulling)from the stony hull(thick:difficult dehulling)in wild progenitors was a key step in Coix domestication.The papery hull makes seed easier to process and germinate.Anatomic and global transcriptome analysis revealed that the papery hull is a result of inhibition of cell division and wall biogenesis.We also successfully demonstrated that seed hull pressure resistance is controlled by two major quantitative trait loci(QTLs),which are associated with hull thickness and color,respectively.The two QTLs were further fine mapped within intervals of 250 kb and 146 kb,respectively.These resources provide a platform for evolutionary studies and will facilitate molecular breeding of this important crop.Chao Guo Yanan Wang Aiguo Yang Jun He Chaowen Xiao Shanhua Lv Fengming Han Yibing Yuan Yuan Yuan Xiaolong Dong Juan Guo YawenYang-Hailan Liu Ningzhi Zuo Yaxi Hu Kangxu Zhao Zhengbo Jiang Xing Wang Tingting Jiang Yaou Sherf Moju Cao Yuan Wang Zhaobo Long Tingzhao Rong Luqi Huang Shufeng Zhou 2020Molecular Plant2020,13,2:11
5Energy metabolism disorders and potential therapeutic drugs in heart failure显示文摘Heart failure(HF)is a global public health problem with high morbidity and mortality.A large number of studies have shown that HF is caused by severe energy metabolism disorders,which result in an insufficient heart energy supply.This deficiency causes cardiac pump dysfunction and systemic energy metabolism failure,which determine the development of HF and recovery of heart.Current HF therapy acts by reducing heart rate and cardiac preload and afterload,treating the HF symptomatically or delaying development of the disease.Drugs aimed at cardiac energy metabolism have not yet been developed.In this review,we outline the main characteristics of cardiac energy metabolism in healthy hearts,changes in metabolism during HF,and related pathways and targets of energy metabolism.Finally,we discuss drugs that improve cardiac function via energy metabolism to provide new research ideas for the development and application of drugs for treating HF.Yanan He Wei Huang Chen Zhang Lumeng Chen Runchun Xu Nan Li Fang Wang Li Han Ming Yang Dingkun Zhang 2021Acta Pharmaceutica Sinica B2021,11,5:11
6Facile synthesis of ultrathin metal-organic framework nanosheets for Lewis acid catalysis显示文摘Ultrathin metalorganic framework (MOF) nanosheets are attracting great interest in catalysis due to their unique and intriguing two-dime nsional (2D) features. Although many progresses have been achieved, it is still highly desirable to develop novel strategies for controllable synthesis of the well-defined ultrathin MOF nanosheets. Herein we report a polyvinylpyrrolidone (PVP)-assisted route to synthesize the ultrathin Ni-MOF nanosheets characteristic of 1.5 nm in thickness, in which PVP is reacted with 2-aminoterephthalic acid (H2BDC-NH2) via formation of C=N bon d, followed by coord inatio n with Ni2+ io ns to form the ultrathi n MOF n anosheets. Impressively, when used in the Kno eve nagel condensation reactions of propane dinitrile with different aldehydes, ultrathin Ni-MOF nanosheets display the significantly enhanced catalytic activity and good stability in respect with the bulk Ni-MOF, mainly owing to the exposed active sites as well as facile mass transfer and diffusion of substrates and products.Xiaofei Zhang Lin Chang Zhongjie Yang Yanan Shi Chang Long Jianyu Han Binhao Zhang Xueying Qiu Guodong Li Zhiyong Tang 2019Nano Research2019,12,2:11
7Direct intercellular communications dominate the interaction between adipose-derived MSCs and myofibroblasts aqainst cardiac fibrosis显示文摘Xiaokang Li Hui Zhao Chunxiao Qi Yang Zeng Feng Xu Yanan Du 2015Protein & Cell2015,6,10:9
8Nine compounds from the root bark of Lycium chinense and their anti-inflammatory activities显示文摘Two new compounds, named lyciumlignan D(1) and lyciumphenyl propanoid A(2), along with seven known compounds, were isolated from the root bark of Lycium chinense. Their structures were elucidated using spectroscopic data(UV, IR, HR-ESI-MS, 1D and 2D NMR, CD), as well as by comparison with those of the literature. Compounds 3–9 were isolated from this genus for the first time. In the in vitro assay, compounds 3, 6, and 7 exhibited stronger anti-inflammatory effects than the positive control curcumin at a concentration of 10 μmol/L.Yanan Yang Yawen An Wei Wang Ning Du Jinghua Zhang Ziming Feng Jianshuang Jiang Peicheng Zhang 2017Acta Pharmaceutica Sinica B2017,7,4:9
9Self-Assembled Silane Film and Silver Nanoparticles Coating on Magnesium Alloys for Corrosion Resistance and Antibacterial Applications显示文摘Contamination resulting from microbial adhesion on magnesium alloys is very common in many applications.Self-assembly technology was employed to prepare an antibacterial composite coating by fixing silver nanoparticles(AgNPs)onto the surface of magnesium alloys.The AgNPs were immobilized on the surface of3-aminopropyltrimethoxysilane(APTMS)-modified magnesium alloy AZ31(APTMS/Mg)through electrostatic inter-attraction between partially protonated amino groups and negatively charged citrate-capped AgNPs,resulting in the AgNPs attached APTMS/Mg(AgNPs/APTMS/Mg)substrate.The prepared Ag colloid and functionalized AZ31 alloy were characterized by ultraviolet-visible(UV-vis)spectroscopy,Fourier transform infrared(FTIR)spectroscopy,scanning electron microscopy(SEM),and electrochemical methods.Finally,the bactericidal activity of AgNPs/APTMS/Mg substrate against Escherichia coli was assessed by the inhibition zone.The results demonstrated that Si-O-Si covalent bonds existed on the substrate with the formation of inorganic Si-O-Mg bonds.AgNPs were immobilized and well-dispersed,forming a uniform submonolayer on the silane film in two dimensions.The AgNPs/APTMS-pretreated AZ31 alloys exhibited better corrosion resistance and excellent antibacterial performance.Rongchang ZENG Lijun LIU Shuoqi LI Yuhong ZOU Fen ZHANG Yanan YANG Hongzhi CUI En-hou HAN 2013Acta Metallurgica Sinica(English Letters)2013,26,6:8
10Velvet antler polypeptide is able to induce differentiation of neural stem cells towards neurons in vitro显示文摘OBJECTIVE: To investigate the neural differentiation capacity of water extraction of velvet antler.METHODS: Velvet antler(Cervus Nippon Temminck) polypeptide(VAP) was used to differentiate neural stem cells(NSCs) towards neurons in the study. Firstly, we obtain the polypeptides of VAP by water extraction. Secondly, we observed the morphology, assayed the factors in the media by enzyme-linked immunosorbent assay, and detected the special neural molecules by immuno fl uorescence staining. NSCs were cultured on the cell climbing film. After neuronal differentiation, differentiated NSCs were mounted for immunocytochemistry with immunofluorescence technique.RESULTS: The differentiating cells look like neuron,some special factors, such as Glial cell line-derived neurotrophic factor, nerve growth factor, in the media can be detected while differentiated neuron-like cells can express the special neural molecules.CONCLUSION: Differentiation of NSCs towards neurons can be induced by velvet antler polypeptide.Zhang Lihong Zhuang Zhihong Sun Yanan Ma Shuhua Yang Weifeng Lei Hongtao Zuo Junling Ouyang Jingfeng Wang Yi 2017Journal of Traditional Chinese Medicine2017,37,3:8
11Novel hydrogen storage properties of palladium nanocrystals activated by a pentagonal cyclic twinned structure显示文摘研究人员们看起来忽视了雏晶的一种特殊形式,五角的周期的 twinning,明显的二维的格子扩大在存在导致新奇 physicalchemical 性质在几何、电子的结构与变化联系了。在 Pd nanocrystals 把氢的存储和版本用作一根探针,我们发现了五角的周期的孪生的 Pd nanocrystals 有的那 icosahedral 不同的氢存储性质由于二维的格子扩大,与那些相当不同八面的单个水晶的对应物。另外,在五角的周期的孪生的 Pd nanocrystals 的二维的格子扩大在电子结构引起一个变化,它导致在 PdH x 五角的周期的孪生的 nanocrystals。Huang Huang Shixiong Bao Qiaoli Chen Yanan Yang Zhiyuan Jiang Qin Kuang Xiaoyin Wu Zhaoxiong Xie Lansun Zheng 2015Nano Research2015,8,8:7
12A facile surfactant-free synthesis of Rh flower-like nanostructures constructed from ultrathin nanosheets and their enhanced catalytic properties显示文摘Rh 是广泛地在许多器官的反应被使用的重要催化剂。在最近的年里,许多努力集中了于由与控制尺寸和形态学制作催化剂 nanoparticles 改进它的催化效率。然而,也把有机化合物用作反应媒介或盖住代理人的经常采用的合成线路经常在催化剂表面上导致剩余分子,它急速地接着减少催化表演。此处,我们报导甲醛经由 Rh (acac )3 的热水的减小获得的新奇 Rh 象花的结构的灵巧的、水的、没有表面活化剂的合成。唯一的 Rh nanoflowers 从 ultrathin nanosheets 被构造,其基础表面包括了 { 111 } 有 ~ 的平均厚度的方面 1.1 nm。特定的表面区域由公司脱衣测量了 79.3 是 m 2 钟声到 134.4 食火鸟的浸透的磁化 ???? 愠汬祯湩吗??Yaqi Jiang Jingyun Su Yanan Yang Yanyan Jia Qiaoli Chen Zhaoxiong Xie Lansun Zheng 2016Nano Research2016,9,3:7
13Recent progress of integrated circuits and optoelectronic chips显示文摘Integrated circuits(ICs)and optoelectronic chips are the foundation stones of the modern information society.The IC industry has been driven by the so-called'Moore's law'in the past 60 years,and now has entered the post Moore's law era.In this paper,we review the recent progress of ICs and optoelectronic chips.The research status,technical challenges and development trend of devices,chips and integrated technologies of typical IC and optoelectronic chips are focused on.The main contents include the development law of IC and optoelectronic chip technology,the IC design and processing technology,emerging memory and chip architecture,brain-like chip structure and its mechanism,heterogeneous integration,quantum chip technology,silicon photonics chip technology,integrated microwave photonic chip,and optoelectronic hybrid integrated chip.Yue HAO Shuiying XIANG Genquan HAN Jincheng ZHANG Xiaohua MA Zhangming ZHU Xingxing GUO Yahui ZHANG Yanan HAN Ziwei SONG Yan LIU Ling YANG Hong ZHOU Jiangyi SHI Wei ZHANG Min XU Weisheng ZHAO Biao PAN Yangqi HUANG Qi LIU Yimao CAI Jian ZHU Xin OU Tiangui YOU Huaqiang WU Bin GAO Zhiyong ZHANG Guoping GUO Yonghua CHEN Yong LIU Xiangfei CHEN Chunlai XUE Xingjun WANG Lixia ZHAO Xihua ZOU Lianshan YAN Ming LI 2021Science China(Information Sciences)2021,64,10:7
14Orthogonal design to sift the optimal parameter of Neiguan acupuncture for cerebral infarction显示文摘The individual difference and non-repeatability in acupuncture have not only restricted the development of acupuncture,but have also affected the specificity of acupoints.The present study used instruments to control needle depth,lifting and thrusting frequency,and the duration of acupuncture.Effects of the quantified acupuncture were observed at Neiguan(PC6)with different stimulation parameters.A frequency of 1,2,or 3 Hz and duration of 5,60,or 180 seconds were used to observe cerebral blood flow and ratio of infarct volume recovery.Results showed that stimulation at Neiguan with a frequency of 1 Hz and long duration of 180 seconds or 2/3 Hz and long duration of 5/60seconds significantly increased cerebral blood flow and decreased the ratio of infarct volume.Interactions between frequency and duration play a critical role in quantified acupuncture therapy.Yanan Zhang Sha Yang Xiaonong Fan Shu Wang Nina He Lingxin Li Ding Luo Xuemin Shi 2013Neural Regeneration Research2013,8,28:7
15Generation of multi-channel chaotic signals with time delay signature concealment and ultrafast photonic decision making based on a globally-coupled semiconductor laser network显示文摘We propose and demonstrate experimentally and numerically a network of three globally coupled semiconductor lasers(SLs)that generate triple-channel chaotic signals with time delayed signature(TDS)concealment.The effects of the coupling strength and bias current on the concealment of the TDS are investigated.The generated chaotic signals are further applied to reinforcement learning,and a parallel scheme is proposed to solve the multiarmed bandit(MAB)problem.The influences of mutual correlation between signals from different channels,the sampling interval of signals,and the TDS concealment on the performance of decision making are analyzed.Comparisons between the proposed scheme and two existing schemes show that,with a simplified algorithm,the proposed scheme can perform as well as the previous schemes or even better.Moreover,we also consider the robustness of decision making performance against a dynamically changing environment and verify the scalability for MAB problems with different sizes.This proposed globally coupled SL network for a multi-channel chaotic source is simple in structure and easy to implement.The attempt to solve the MAB problem in parallel can provide potential values in the realm of the application of ultrafast photonics intelligence.Yanan Han Shuiying Xiang Yang Wang Yuanting Ma Bo Wang Aijun Wen Yue Hao 2020Photonics Research2020,8,11:6
16Insight into Medicinal Chemistry Behind Traditional Chinese Medicines: p-Hydroxybenzyl Alcohol-Derived Dimers and Trimers from Gastrodia elata显示文摘From an aqueous extract of“tian ma”(the steamed and dried rhizomes of Gastrodia elata),ten new compounds gastrodiben-zins A−D(1−4)and gastrotribenzins A−F(5−10),along with known analogues(11−20),having structure features coupling between two and three p-hydroxybenzyl-derived units via carbon-and/or ether-bonds,were isolated and characterized by spectroscopic data analysis.Meanwhile,the new compounds 5a,6a,8a,22,and 23,as well as the known derivatives 13a,14a,15,17−21,24,25,and p-hydroxybenzyl aldehyde were isolated and identified from a refluxed aqueous solution of p-hydroxybenzyl alcohol.Methylation of 5a and 6a in methanol and ethylation of 6a,8a,13a,and 14a in ethanol produced 5 and 6 and 7,8,13,and 14,respectively.using ultra-performance liquid chromatography high-resolution electrospray ioniza-tion mass spectrometry(UPLC-HRESIMS)analysis of the refluxed solutions of p-hydroxybenzyl alcohol and the refluxed extracts of the fresh G.elata rhizome and“tian ma”extracts indicated consistent production and variation of the dimeric and trimeric derivatives of p-hydroxybenzyl alcohol upon extracting solvents and refluxing time.In various assays,the dimeric and trimeric derivatives showed more potent activities than p-hydroxybenzyl alcohol itself and gastrodin,which are the main known active constituents of“tian ma”.These results revealed for the first time that the more effective dimers and trimers can be produced through condensation of the co-occurring p-hydroxybenzyl alcohol during processing and decocting of the G.elata rhizomes,demonstrating insights into medicinal chemistry behind application protocols of traditional Chinese medicines.Yanan Wang Min Zhang Xue Zhou Chengbo Xu Chenggen Zhu Yuhe Yuan Naihong Chen Yongchun Yang Qinglan Guo Jiangong Shi 2021Natural Products and Bioprospecting2021,11,1:6
17Evolution of secondary phase particles during deformation of Al-5Ti-1B master alloy and their effect on α-Al grain refinement显示文摘Addition of Al-5Ti-1B alloy to molten aluminum alloys can refine α-Al grains effectively and thereby improve their strength and toughness. TiAl_3 and TiB_2 in Al-5Ti-1B alloy are the main secondary-phase particles for refinement, while the understanding on the effect of their sizes on α-Al grain refinement continues to be fragmented. Therefore, Al-5Ti-1B alloys with various sizes and morphologies of the secondary-phase particles were prepared by equal channel angular pressing(ECAP). Evolution of the secondary-phase particles during ECAP process and their impact on α-Al grain refinement were studied by X-ray diffraction and scanning electron microscope(SEM). Results show that during the ECAP process, micro-cracks firstly appeared inside TiAl_3 particles and then gradually expanded, which resulted in continuous refinement of TiAl_3 particles. In addition, micro-distribution uniformity of TiB_2 particles was improved due to the impingement of TiAl_3 particles to TiB_2 clusters during deformation. Excessively large sizes of TiAl_3 particles would reduce the number of effective heterogeneous nucleus and thus resulted in poor grain refinement effectiveness. Moreover, excessively small TiAl_3 particles would reduce inhibitory factors for grain growth Q and weaken grain refinement effectiveness. Therefore, an optimal size range of 18-22 μm for TiAl_3 particles was suggested.Hong Yu Ning Wang Renguo Guan Di Tie Zheng Li Yanan An Yang Zhang 2018Journal of Materials Science & Technology2018,34,12:6
18by a cascade optical field modulation strategy facilitating selective multispectral narrow-band near-infrared photodetection显示文摘Since selective detection of multiple narrow spectral bands in the near-infrared(NIR)region still poses a fundamental challenge,we have,in this work,developed NIR photodetectors(PDs)using photon upconversion nanocrystals(UCNCs)combined with perovskite films.To conquer the relatively high pumping threshold of UCNCs,we designed a novel cascade optical field modulation strategy to boost upconversion luminescence(UCL)by cascading the superlensing effect of dielectric microlens arrays and the plasmonic effect of gold nanorods,which readily leads to a UCL enhancement by more than four orders of magnitude under weak light irradiation.By accommodating multiple optically active lanthanide ions in a core-shell-shell hierarchical architecture,developed PDs on top of this structure can detect three well-separated narrow bands in the NIR region,i.e.,those centered at 808,980,and 1540 nm.Due to the large UCL enhancement,the obtained PDs demonstrate extremely high responsivities of 30.73,23.15,and 12.20 AW^(−1) and detectivities of 5.36,3.45,and 1.91×10^(11) Jones for 808,980,and 1540 nm light detection,respectively,together with short response times in the range of 80-120 ms.Moreover,we demonstrate for the first time that the response to the excitation modulation frequency of a PD can be employed to discriminate the incident light wavelength.We believe that our work provides novel insight for developing NIR PDs and that it can spur the development of other applications using upconversion nanotechnology.Yanan Ji Wen Xu Nan Ding Haitao Yang Hongwei Song Qingyun Liu Hans Agren Jerker Widengren Haichun Liu 2020Light(Science & Applications)2020,9,1:6
19Genetic dissection of rice appearance quality and cooked rice elongation by genome-wide association study显示文摘Appearance and cooked rice elongation are key quality traits of rice. Although some QTL for these traits have been identified, understanding of the genetic relationship between them remains limited. In the present study, large phenotypic variation was observed in 760 accessions from the 3 K Rice Genomes Project for both appearance quality and cooked rice elongation. Most component traits of appearance quality and cooked rice elongation showed significant pairwise correlations, but a low correlation was found between appearance quality and cooked rice elongation. A genome-wide association study identified 74 QTL distributed on all 12 chromosomes for grain length, grain width, length to width ratio, degree of endosperm with chalkiness, rice elongation difference, and elongation index. Thirteen regions containing QTL stably expressed in multiple environments and/or exerting pleiotropic effects on multiple traits were detected. By gene-based association analysis and haplotype analysis, 46 candidate genes, including five cloned genes, and 49 favorable alleles were identified for these 13 QTL. The effect of the candidate gene Wx on rice elongation difference was validated by a transgenic strategy. These results shed light on the genetic bases of appearance quality and cooked rice elongation and provide gene resources for improving rice quality by molecular breeding.Xianjin Qiu Jing Yang Fan Zhang Yanan Niu Xiuqing Zhao Congcong Shen Kai Chen Sheng Teng Jianlong Xu 2021The Crop Journal2021,9,6:5
20Altered Local Field Potential Relationship Between the Parafascicular Thalamic Nucleus and Dorsal Striatum in Hemiparkinsonian Rats显示文摘The thalamostriatal pathway is implicated in Parkinson's disease(PD); however, PD-related changes in the relationship between oscillatory activity in the centromedian-parafascicular complex(CM/Pf, or the Pf in rodents) and the dorsal striatum(DS) remain unclear.Therefore, we simultaneously recorded local field potentials(LFPs) in both the Pf and DS of hemiparkinsonian and control rats during epochs of rest or treadmill walking. The dopamine-lesioned rats showed increased LFP power in the beta band(12 Hz–35 Hz) in the Pf and DS during both epochs, but decreased LFP power in the delta(0.5 Hz–3 Hz) band in the Pf during rest epochs and in the DS during both epochs, compared to control rats. In addition,exaggerated low gamma(35 Hz–70 Hz) oscillations after dopamine loss were restricted to the Pf regardless of the behavioral state. Furthermore, enhanced synchronization of LFP oscillations was found between the Pf and DS after the dopamine lesion. Significant increases occurred in the mean coherence in both theta(3 Hz–7 Hz) and beta bands,and a significant increase was also noted in the phase coherence in the beta band between the Pf and DS during rest epochs. During the treadmill walking epochs, significant increases were found in both the alpha(7 Hz–12 Hz)and beta bands for two coherence measures. Collectively,dramatic changes in the relative LFP power and coherence in the thalamostriatal pathway may underlie the dysfunction of the basal ganglia-thalamocortical network circuits in PD, contributing to some of the motor and non-motor symptoms of the disease.Haiyan Zhang Jing Yang Xuenan Wang Xiaomeng Yao Hongyu Han Yunfeng Gao Hongli Chang Tianyu Xiang Shuang Sun Yanan Wang Xiusong Wang Min Wang 2019Neuroscience Bulletin2019,35,2:5
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