295 results on '"Guangli Yang"'
Search Results
2. MAPK signaling pathway participates in the regulation of intestinal phosphorus and calcium absorption in broiler chickens via 1,25-dihydroxyvitamin D3
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Jincheng Han, Xianliang Lv, Lei He, Mengyuan Liu, Hongxia Qu, Li Xi, Liao Zhang, Bingbing Ma, Chuanxin Shi, Guangli Yang, and Zhixiang Wang
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broiler ,1,25-dihydroxyvitamin D3 ,MAPK signaling pathway ,NaPi-IIb ,CaBP-D28k ,Animal culture ,SF1-1100 - Abstract
ABSTRACT: Four experiments were performed to investigate the role of the mitogen-activated protein kinase (MAPK) signaling pathway in intestinal absorption of phosphorus (P) and calcium (Ca) in broiler chickens. Experiment 1 assessed how dietary levels of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) influence the gene expression of intestinal P and Ca transporters in broilers. Experiment 2 evaluated the effects of 1,25(OH)2D3 administered via intraperitoneal injection on the extracellular signal-regulated kinase (ERK) and p38 mitogen-activated protein kinase (p38MAPK) signaling pathways. Experiments 3 and 4 investigated the effect of ERK and p38MAPK inhibitors on the expression of intestinal P and Ca transporters. The findings demonstrated that broilers (1–21 days old) fed a 1,25(OH)2D3-deficient diet (0.625 µg/kg) exhibited reduced body weight, tibia P and Ca levels, and mRNA levels of P transporters (NaPi-IIb, PiT-1, and PiT-2), Ca transporters (NCX1, PMCA1b, and CaBP-D28k), vitamin D receptors (VDR), ERK, and p38MAPK in the duodenum (Experiment 1) (P < 0.05). By comparison, the growth, bone quality, and mRNA levels of genes (except for duodenal NaPi-IIb) in broilers were similar to those in broilers fed the control diet when dietary 1,25(OH)2D3 was adequate (5 µg/kg) (Experiment 1) (P > 0.05). After intraperitoneal injection of 1,25(OH)2D3, the mRNA level of jejunal NaPi-IIb and the protein level of p-p38MAPK/t-p38MAPK in broilers (9–14 days old) decreased (P < 0.05), whereas the mRNA level of CaBP-D28k and the protein level of p-ERK/t-ERK increased (Experiment 2) (P < 0.05). The mRNA and protein expression of jejunal NaPi-IIb and the protein expression of CaBP-D28k in broilers (9–17 days old) treated with the ERK inhibitor PD98059 were greater than those in the control group (Experiment 3) (P < 0.05). Similarly, compared with control broilers, broilers (9–17 days old) treated with the p38MAPK inhibitor SB203580 showed elevated mRNA expression of jejunal NaPi-IIb and CaBP-D28k (Experiment 4) (P < 0.05). These results suggest that adequate supplementation with 1,25(OH)2D3 (5 µg/kg) can restore broiler growth and bone quality by upregulating the transcription of genes involved in intestinal P and Ca absorption. Additionally, the ERK and p38MAPK signaling pathways are implicated in the modulatory effect of 1,25(OH)2D3 on the absorption of P and Ca in broilers.
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- 2024
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3. Liang-Ge-San: a classic traditional Chinese medicine formula, attenuates acute inflammation via targeting GSK3β
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Liling Yang, Lijun Yan, Weifu Tan, Xiangjun Zhou, Guangli Yang, Jingtao Yu, Zibin Lu, Yong Liu, Liyi Zou, Wei Li, and Linzhong Yu
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Liang-Ge-San ,traditional Chinese medicine ,sepsis ,acute inflammation ,LPS ,GSK-3β ,Therapeutics. Pharmacology ,RM1-950 - Abstract
Sepsis is a serious life-threatening health disorder with high morbidity and mortality rates that burden the world, but there is still a lack of more effective and reliable drug treatment. Liang-Ge-San (LGS) has been shown to have anti-inflammatory effects and is a promising candidate for the treatment of sepsis. However, the anti-sepsis mechanism of LGS has still not been elucidated. In this study, a set of genes related to inflammatory chemotaxis pathways was downloaded from Encyclopedia of Genes and Genomes (KEGG) and integrated with sepsis patient information from the Gene Expression Omnibus (GEO) database to perform differential gene expression analysis. Glycogen synthase kinase-3β (GSK-3β) was found to be the feature gene after these important genes were examined using the three algorithms Random Forest, support vector machine recursive feature elimination (SVM-REF), and least absolute shrinkage and selection operator (LASSO), and then intersected with possible treatment targets of LGS found through the search. Upon evaluation, the receiver operating characteristic (ROC) curve of GSK-3β indicated an important role in the pathogenesis of sepsis. Immune cell infiltration analysis suggested that GSK-3β expression was associated with a variety of immune cells, including neutrophils and monocytes. Next, lipopolysaccharide (LPS)-induced zebrafish inflammation model and macrophage inflammation model was used to validate the mechanism of LGS. We found that LGS could protect zebrafish against a lethal challenge with LPS by down-regulating GSK-3β mRNA expression in a dose-dependent manner, as indicated by a decreased neutrophils infiltration and reduction of inflammatory damage. The upregulated mRNA expression of GSK-3β in LPS-induced stimulated RAW 264.7 cells also showed the same tendency of depression by LGS. Critically, LGS could induce M1 macrophage polarization to M2 through promoting GSK-3β inactivation of phosphorylation. Taken together, we initially showed that anti-septic effects of LGS is related to the inhibition on GSK-3β, both in vitro and in vivo.
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- 2023
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4. Immunization with a combination of recombinant Brucella abortus proteins induces T helper immune response and confers protection against wild‐type challenge in BALB/c mice
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Zhiqiang Li, Shuli Wang, Shujuan Wei, Guangli Yang, Chunmei Zhang, Li Xi, Jinliang Zhang, Yanyan Cui, Junfang Hao, Huan Zhang, and Hui Zhang
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Biotechnology ,TP248.13-248.65 - Abstract
Summary Protective efficiency of a combination of four recombinant Brucella abortus (B. abortus) proteins, namely, ribosomal protein L7/L12, outer membrane protein (OMP) 22, OMP25 and OMP31, was evaluated as a combined subunit vaccine (CSV) against B. abortus infection in RAW 264.7 cell line and murine model. Four proteins were cloned, expressed and purified, and their immunocompetence was analysed. BALB/c mice were immunized subcutaneously with single subunit vaccines (SSVs) or CSV. Cellular and humoral immune responses were determined by ELISA. Results of immunoreactivity showed that these four recombinant proteins reacted with Brucella‐positive serum individually but not with Brucella‐negative serum. A massive production of IFN‐γ and IL‐2 but low degree of IL‐10 was observed in mice immunized with SSVs or CSV. In addition, the titres of IgG2a were heightened compared with IgG1 in SSV‐ or CSV‐immunized mice, which indicated that SSVs and CSV induced a typical T‐helper‐1‐dominated immune response in vivo. Further investigation of the CSV showed a superior protective effect in mice against brucellosis. The protection level induced by CSV was significantly higher than that induced by SSVs, which was not significantly different compared with a group immunized with RB51. Collectively, these antigens of Brucella could be potential candidates to develop subunit vaccines, and the CSV used in this study could be a potential candidate therapy for the prevention of brucellosis.
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- 2022
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5. Improved Moments Estimation for Ground-Based K-Band Doppler Radar Using Cost Function Method
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Yirong Li, Rui Wang, Yong Luo, Hua Li, and Guangli Yang
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Moments estimation ,wind profiler ,surface boundary layer ,adaptive Doppler window ,profile chain building ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
An improved moments estimation algorithm used in a newly developed K-band wind profiler to obtain accurate 3-D profiles of wind velocity along the altitude is described. The signal-to-noise ratio (SNR) of turbulent echoes detected by millimeter-wave radar is usually low, making it becomes a challenging task to determine accurate Doppler profiles. And if wind profilers can provide quick estimates of wind, they will have greater applicability in automated, real-time environments. The improved method combines the concepts of adaptive Doppler windows and profile chain construction, reduces the search range of prospective spectral peaks by using adaptive Doppler windows, and designs new multiparameter cost functions to determine velocity profiles by studying the wind shear in the surface boundary layer. The algorithm can effectively identify the atmospheric echo components of each range bin even under the condition of low SNR, and the computational time is decreased by at least 18% compared with the previous algorithms. The proposed method is tested on the real wind radar datasets to verify its robustness and reliability. The wind information obtained by four different algorithms is compared with the data obtained from the meteorological mast of the Gaoyou wind farm in China. The comparison results indicate that the proposed method shows a nicer match with the data of the mast, and it derives the winds more accurately in the atmosphere of the surface boundary layer.
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- 2022
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6. Reducing social security contribution rate on the financial performance of state-owned and non-state-owned manufacturing industries in the post-epidemic era.
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Liangchen Zhang and Guangli Yang
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Medicine ,Science - Abstract
Social insurance is an essential component of a contemporary social security system since it protects people's fundamental well-being, but it also incurs a heavy cost for businesses. If social security costs are excessively high, business profitability will suffer, and innovation will be discouraged. The most affected companies would be those in labor-intensive industries and medium-sized enterprises. Chinese businesses have suffered severe losses as a result of the COVID-19 outbreak. Given the circumstance, China enacted additional tax cuts and preferential social insurance premium plans. This article suggests a lower ratio of contribution as a strategy to cut the cost of social insurance premiums for businesses, given the growth of the social security fund in recent years and the proportion of participants to recipients in pension funds. It would be possible to increase firm profitability and lessen the impact of COVID-19 on industries by minimizing this operation burden. In order to compare the financial performance of state-owned manufacturers (SOMs) to that of their non-state-owned peers, who have a lower ratio of contribution, this study uses a multiple regression model. The ratio of contributions was inversely correlated with an enterprise's financial performance. In other words, financial performance will improve as the ratio of contribution lowers; nevertheless, this effect is more pronounced in SOMs. The final section of this study proposed optimized approaches for social insurance premiums reform.
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- 2023
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7. A Wideband Dual-Polarized Antenna and its Array With Electrically Downtilt Function for 5G Sub-6 GHz Communication Applications
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Hao Jin, Lijia Zhu, Huanqing Zou, Yong Luo, Shugong Xu, and Guangli Yang
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Wideband ,dual-polarized ,electrically downtilt ,opened-loop dipoles ,5G ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
A wideband dual-polarized antenna is proposed for 4G and 5G communication applications. The antenna element consists of a pair of opened-loop dipoles for dual-polarization and its three inherent resonant modes are shifted closer to form a wide bandwidth. With additional U-shaped slots etched around the feed point, the input impedance of the antenna element is matched to 50 Ohm. The fabricated antenna element operates from 1.8 to 4.0 GHz, having 75.9% (VSWR ≤ 2) impedance bandwidth and high port-to-port isolation (>25 dB). It also achieves a 67±1° beamwidth in H-plane and 68.7 ± 3.3° in V-plane with 8.5 ± 1 dBi gain across the supported bands. By using six antenna elements and designing RF phase shifting module (RFPSM) based on vector modulators, a six-element dual-polarized array with electrically downtilt is also fabricated and measured, realizing a peak gain of 16.8 dBi, a similar beamwidth in H-plane as single antenna element and an electrically downtilt in V-plane from 0° to 12° which is preferred in communication applications. This antenna array could be used for future 5G communication and other applications.
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- 2020
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8. Compact Eight-Element Antenna Array for Triple-Band MIMO Operation in 5G Mobile Terminals
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Hongwei Wang, Ruiheng Zhang, Yong Luo, and Guangli Yang
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Compact antennas ,triple-band antennas ,eight-element antenna array ,MIMO system ,5G mobile terminal ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In this paper, we have introduced a compact eight-element antenna array for triple-band MIMO (multi-input multi-output) operation in 5G (fifth generation) mobile terminals, which consists of two symmetric four-element sub-arrays disposed, respectively, along two long side-edges of the system ground plane of the mobile terminal. This antenna element can operate at two dual-wideband of 3250-3820 MHz and 4790-6200 MHz with three resonance frequencies which can fully cover 5G NR (New Radio) BandN78 (3300-3800 MHz), China 5G-Band of 4800-5000 MHz and LTE Band-46 (5150-5925 MHz). The main parameters that characterize the performance of the proposed MIMO antenna system, such as bandwidth, reflection coefficient, isolation (more than 10.5 dB), total radiation efficiency (more than 43%), ECC (envelope correlation coefficient, less than 0.12) and CC (channel capacity, 34.9-37.6 bps/Hz), are analyzed and presented in this paper. Besides, the effects of single-hand and dual-hand on performance of the MIMO antenna system are also discussed. The structure of antenna element is only 15 mm × 3 mm (0.175 λ0 × 0.035 λ0, λ0 is the free-space wavelength at the frequency of 3.5 GHz) with a very small ground clearance of 13 mm × 2 mm on the main board of the proposed mobile terminal. The antenna system has the possibility to be used in 5G mobile terminals with triple-band operation, narrow frame and large display. The corresponding antennas prototype is fabricated and measured; and a quite good agreement between simulation and measurement is obtained.
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- 2020
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9. Comparison of: (2S,4R)-4-[18F]Fluoroglutamine, [11C]Methionine, and 2-Deoxy-2-[18F]Fluoro-D-Glucose and Two Small-Animal PET/CT Systems Imaging Rat Gliomas
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Maxwell W. G. Miner, Heidi Liljenbäck, Jenni Virta, Semi Helin, Olli Eskola, Petri Elo, Jarmo Teuho, Kerttu Seppälä, Vesa Oikonen, Guangli Yang, Andrea Kindler-Röhrborn, Heikki Minn, Xiang-Guo Li, and Anne Roivainen
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fluoroglutamine ,methionine ,FDG ,glioma ,modeling ,rat ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,RC254-282 - Abstract
PurposeThe three positron emission tomography (PET) imaging compounds: (2S,4R)-4-[18F]Fluoroglutamine ([18F]FGln), L-[methyl-11C]Methionine ([11C]Met), and 2-deoxy-2-[18F]fluoro-D-glucose ([18F]FDG) were investigated to contrast their ability to image orthotopic BT4C gliomas in BDIX rats. Two separate small animal imaging systems were compared for their tumor detection potential. Dynamic acquisition of [18F]FGln was evaluated with multiple pharmacokinetic models for future quantitative comparison.ProceduresUp to four imaging studies were performed on each orthotopically grafted BT4C glioma-bearing BDIX rat subject (n = 16) on four consecutive days. First, a DOTAREM® contrast enhanced MRI followed by attenuation correction CT and dynamic PET imaging with each radiopharmaceutical (20 min [11C]Met, 60 min [18F]FDG, and 60 min [18F]FGln with either the Molecubes PET/CT (n = 5) or Inveon PET/CT cameras (n = 11). Ex vivo brain autoradiography was completed for each radiopharmaceutical and [18F]FGln pharmacokinetics were studied by injecting 40 MBq into healthy BDIX rats (n = 10) and collecting blood samples between 5 and 60 min. Erythrocyte uptake, plasma protein binding and plasma parent-fraction were combined to estimate the total blood bioavailability of [18F]FGln over time. The corrected PET-image blood data was then applied to multiple pharmacokinetic models.ResultsAverage BT4C tumor-to-healthy brain tissue uptake ratios (TBR) for PET images reached maxima of: [18F]FGln TBR: 1.99 ± 0.19 (n = 13), [18F]FDG TBR: 1.41 ± 0.11 (n = 6), and [11C]Met TBR: 1.08 ± 0.08, (n = 12) for the dynamic PET images. Pharmacokinetic modeling in dynamic [18F]FGln studies suggested both reversible and irreversible uptake play a similar role. Imaging with Inveon and Molecubes yielded similar end-result ratios with insignificant differences (p > 0.25).ConclusionsIn orthotopic BT4C gliomas, [18F]FGln may offer improved imaging versus [11C]Met and [18F]FDG. No significant difference in normalized end-result data was found between the Inveon and Molecubes camera systems. Kinetic modelling of [18F]FGln uptake suggests that both reversible and irreversible uptake play an important role in BDIX rat pharmacokinetics.
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- 2021
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10. Characterization of Phosphopantetheinyl Hydrolase from Mycobacterium tuberculosis
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Shilpika Pandey, Amrita Singh, Guangli Yang, Felipe B. d’Andrea, Xiuju Jiang, Travis E. Hartman, John W. Mosior, Ronnie Bourland, Ben Gold, Julia Roberts, Annie Geiger, Su Tang, Kyu Rhee, Ouathek Ouerfelli, James C. Sacchettini, Carl F. Nathan, and Kristin Burns-Huang
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metallophosphodiesterase ,carrier protein ,dephosphopantetheinylation ,phosphopantetheinyl hydrolase ,CoA salvage ,Mycobacterium tuberculosis ,Microbiology ,QR1-502 - Abstract
ABSTRACT Phosphopantetheinyl hydrolase, PptH (Rv2795c), is a recently discovered enzyme from Mycobacterium tuberculosis that removes 4′-phosphopantetheine (Ppt) from holo-carrier proteins (CPs) and thereby opposes the action of phosphopantetheinyl transferases (PPTases). PptH is the first structurally characterized enzyme of the phosphopantetheinyl hydrolase family. However, conditions for optimal activity of PptH have not been defined, and only one substrate has been identified. Here, we provide biochemical characterization of PptH and demonstrate that the enzyme hydrolyzes Ppt in vitro from more than one M. tuberculosis holo-CP as well as holo-CPs from other organisms. PptH provided the only detectable activity in mycobacterial lysates that dephosphopantetheinylated acyl carrier protein M (AcpM), suggesting that PptH is the main Ppt hydrolase in M. tuberculosis. We could not detect a role for PptH in coenzyme A (CoA) salvage, and PptH was not required for virulence of M. tuberculosis during infection of mice. It remains to be determined why mycobacteria conserve a broadly acting phosphohydrolase that removes the Ppt prosthetic group from essential CPs. We speculate that the enzyme is critical for aspects of the life cycle of M. tuberculosis that are not routinely modeled. IMPORTANCE Tuberculosis (TB), caused by Mycobacterium tuberculosis, was the leading cause of death from an infectious disease before COVID, yet the in vivo essentiality and function of many of the protein-encoding genes expressed by M. tuberculosis are not known. We biochemically characterize M. tuberculosis’s phosphopantetheinyl hydrolase, PptH, a protein unique to mycobacteria that removes an essential posttranslational modification on proteins involved in synthesis of lipids important for the bacterium’s cell wall and virulence. We demonstrate that the enzyme has broad substrate specificity, but it does not appear to have a role in coenzyme A (CoA) salvage or virulence in a mouse model of TB.
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- 2021
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11. A Zero-Mode Induced mmWave Patch Antenna With Low-Profile, Wide-Bandwidth and Large-Angle Scanning for 5G Mobile Terminals
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Yong Luo, Jiayou Xu, Yuanqing Chen, Yun Sun, Bin Xu, Shugong Xu, and Guangli Yang
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5G mmWave ,patch antenna ,shorting pin ,mobile terminals ,beam scanning ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Millimeter-Wave (mmWave) antennas for 5G mobile terminals require a wide bandwidth, large-angle beam scanning, low-profile design, and multi-substrate compatibility for module-level integration. In this paper, we propose one candidate design employing a patch structure with the shorting pin to particularly generate extra zero modes. By taking advantages of the 2nd zero-mode with the TM01 mode, we can obtain a wide bandwidth covering 23.5~28 GHz, a large-angle beam scanning with ±60°, as well as keep the substrate as low profile as 0.508 mm. Thanks to the zero-mode induced patch-type design, it is compatible to multi-layer configuration possessing the extensibility and flexibility for further module design. We experimentally valid the design of a 4 × 2 array with multi-layer configuration in a cell phone environment. Good RF performances with ±60° scanning in the wide bandwidth indicate this proposed design can be an appropriate candidate for 5G mobile terminals.
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- 2019
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12. Dual-Functional MIMO Antenna Array With High Isolation for 5G/WLAN Applications in Smartphones
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Huanqing Zou, Yixin Li, Bin Xu, Yuanqing Chen, Hao Jin, Guangli Yang, and Yong Luo
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5G communication ,high-isolation ,multi-input multi-output (MIMO) ,smartphone antenna ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
A dual-functional antenna array operating in the long term evolution (LTE) band 42 (3.4-3.6 GHz) and 5.8-GHz wireless wide area network (WLAN) band (5.725-5.875 GHz) for multiple-input multiple-output (MIMO) applications in 5G smartphones is proposed. The proposed 8-antenna array is composed of two different antenna elements, namely, the folded L-shaped antenna and couple-fed U-shaped antenna. It can be applied in the 8 × 8 (by using 8 antenna elements) and 4 × 4 (by using 4 antenna elements) MIMO system across the LTE band 42 and 5.8-GHz WLAN band, respectively. The quasi-orthogonal polarization, balanced mode excitation and pattern diversity are properly used to achieve high isolation within the operation bands. A prototype of the proposed antenna array was fabricated and measured. The measured isolations in the LTE band 42 (6-dB impedance matching) and 5.8-GHz WLAN band (10-dB impedance matching) are better than 17.1 dB and 34.6 dB, respectively. The total efficiencies are 45%-62% and 52%-59% in the two operation bands, respectively. Besides, the measured envelope correlation coefficients (ECCs) are less than 0.045 and 0.0001, the calculated peak ergodic channel capacities are 37.9 bps/Hz and 19.3 bps/Hz in the 8 × 8 or 4 × 4 MIMO system across the operation bands. Furthermore, user's hand and head effects are investigated and desirable results are obtained. The above results show that this proposed antenna array is a good candidate for MIMO applications in smartphones.
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- 2019
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13. A Wide-Angle Beam Scanning Antenna in E-plane for K-band Radar Sensor
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Zhiming Yi, Ruiheng Zhange, Bin Xu, Yuanqing Chen, Lijia Zhu, Fan Li, Guangli Yang, and Yong Luo
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Wide-angle beam scanning ,antenna array ,magnetic current antenna ,K-band radar ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
In this paper, a K-band antenna with ±60° beam scanning is proposed for a mmWave (millimeter-Wave) radar sensor. Especially, we take advantages of the magnetic dipole principle, and design the antenna by employing via holes in three sides, so as to form a cavity which can be equivalently considered as magnetic dipole, resulting in the 3 dB beam width as wide as 140° in E-plane. We cascade the mmWave antenna to 1×4 and 4×4 arrays for radar transmitting and receiving, respectively. The antenna array is fabricated and implemented to a K-band radar and its wide-angle beam scanning performance is evaluated by the radar's distance and angular detections.
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- 2019
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14. A Low-Profile SIW-Based CTS Array with Reconfigurable Four Beams and Dual Polarizations for K-Band Sensing
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Yitong Jin, Yuanqing Chen, Yafei Ding, Ziwen Zou, Feng Qian, Yong Luo, and Guangli Yang
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continuous transverse stub (CTS) ,reconfigurable beams ,millimeter-wave antennas ,dual polarizations ,substrate-integrated-waveguide (SIW) ,Chemical technology ,TP1-1185 - Abstract
A dual-polarized continuous transverse stub (CTS) K-band antenna with reconfigurable four beams and low profile is proposed based on substrate-integrated-waveguide (SIW) design. It consists of a line source generator (LSG) on the bottom surface, a spherical-wave to plane-wave transforming part on the middle layer, and CTS radiators on the top surface. Particularly, the LSG has four SIW-based H-plane horns, and a chip is integrated to switch among the two pairs of horns, so as to transfer the quasi-TEM waves on the bottom surface by a ±10° deflection angle to the middle layer for the CTS radiators on the top surface, resulting in four reconfigurable scanning beams with 10° for two polarizations. The measurements show that it realizes four reconfigurable beams with a 25.8 dBi gain at 24 GHz, verifying the design. The proposed antenna takes into account the advantages of reconfigurable multi-beam, dual polarization, low side lobes, low profile, and high gain, which can be applied to K-band sensing, especially for wind profile radars.
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- 2022
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15. A Lens Antenna with Reconfigurable Beams for mmWave Wind Profile Radar
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Yafei Ding, Ziwen Zou, Yong Luo, and Guangli Yang
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reconfigurable beams ,dielectric lens antenna ,wind turbulence ,weak signal ,high gain ,low sidelobe ,Chemical technology ,TP1-1185 - Abstract
Wind profile radar systems require antennas with multiple radiation beams for detecting wind velocity, as well as with a low sidelobe and dual polarization for enhancing the sensitivity for the weak signal reflected from the turbulence. This paper proposes a lens antenna operating at 24 GHz with four reconfigurable beams for wind profile radars. This lens antenna includes 2 × 2 corrugated horn antennas for radiating 24 GHz waves in two polarizations, and the dielectric lens for modulating four radiation beams with a high gain and low sidelobe. Experiments demonstrate that this lens antenna can realize reconfigurable beams with deflections of ±15° in dual polarizations, meanwhile with the gain of 30.58 dBi and the sidelobe of −20 dB. This proposed lens antenna can be applied to mmWave wind profile radars of wind turbines for enhancing wind power efficiency.
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- 2022
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16. Characterization of the bacterial microbiota composition and evolution at different intestinal tract in wild pigs (Sus scrofa ussuricus)
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Guangli Yang, Chuanxin Shi, Shuhong Zhang, Yan Liu, Zhiqiang Li, Fengyi Gao, Yanyan Cui, Yongfeng Yan, and Ming Li
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Wild pigs ,Gut microbiota ,Structure and composition ,16S rRNA gene ,Evolution ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Commensal microorganisms are essential to the normal development and function of many aspects of animal biology, including digestion, nutrient absorption, immunological development, behaviors, and evolution. The specific microbial composition and evolution of the intestinal tracts of wild pigs remain poorly characterized. This study therefore sought to assess the composition, distribution, and evolution of the intestinal microbiome of wild pigs. For these analyses, 16S rRNA V3-V4 regions from five gut sections prepared from each of three wild sows were sequenced to detect the microbiome composition. These analyses revealed the presence of 6,513 operational taxonomic units (OTUs) mostly distributed across 17 phyla and 163 genera in these samples, with Firmicutes and Actinobacteria being the most prevalent phyla of microbes present in cecum and jejunum samples, respectively. Moreover, the abundance of Actinobacteria in wild pigs was higher than that in domestic pigs. At the genus level the Bifidobacterium and Allobaculum species of microbes were most abundant in all tested gut sections, with higher relative abundance in wild pigs relative to domestic pigs, indicating that in the process of pig evolution, the intestinal microbes also evolved, and changes in the intestinal microbial diversity could have been one of the evolutionary forces of pigs. Intestinal microbial functional analyses also revealed the microbes present in the small intestine (duodenum, jejunum, and ileum) and large intestine (cecum and colon) of wild pigs to engage distinct metabolic spatial structures and pathways relative to one another. Overall, these results offer unique insights that would help to advance the current understanding of how the intestinal microbes interact with the host and affect the evolution of pigs.
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- 2020
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17. 12-Port 5G Massive MIMO Antenna Array in Sub-6GHz Mobile Handset for LTE Bands 42/43/46 Applications
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Yixin Li, Chow-Yen-Desmond Sim, Yong Luo, and Guangli Yang
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Handset antenna ,MIMO antenna ,sub-6GHz ,massive MIMO ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
A 12-port antenna array operating in the long term evolution (LTE) band 42 (3400-3600 MHz), LTE band 43 (3600-3800 MHz), and LTE band 46 (5150-5925 MHz) for 5G massive multiple-input multiple-output (MIMO) applications in mobile handsets is presented. The proposed MIMO antenna is composed of three different antenna element types, namely, inverted π-shaped antenna, longer inverted L-shaped open slot antenna, and shorter inverted L-shaped open slot antenna. In total, eight antenna elements are used for the 8×8 MIMO in LTE bands 42/43, and six antenna elements are designed for the 6×6 MIMO in LTE band 46. The proposed antenna was simulated, and a prototype was fabricated and tested. The measured results show that the LTE bands 42/43/46 are satisfied with reflection coefficient better than -6 dB, isolation lower than -12 dB, and total efficiencies of higher than 40%. In addition to that, the proposed antenna array has also shown good MIMO performances with an envelope correlation coefficient lower than 0.15, and ergodic channel capacities higher than 34 and 26.5 b/s/Hz in the LTE bands 42/43 and LTE band 46, respectively. The hand phantom effects are also investigated, and the results show that the proposed antenna array can still exhibit good radiation and MIMO performances when operating under data mode and read mode conditions.
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- 2018
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18. Multiband 10-Antenna Array for Sub-6 GHz MIMO Applications in 5-G Smartphones
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Yixin Li, Chow-Yen-Desmond Sim, Yong Luo, and Guangli Yang
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Sub-6 GHz ,5G ,MIMO antenna ,massive MIMO ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
A multi-band 10-antenna array working at the sub-6-GHz spectrum (LTE bands 42/43 and LTE band 46) for massive multiple-input multiple-output (MIMO) applications in future 5G smartphones is proposed. To realize 10 × 10 MIMO applications in three LTE bands, 10 T-shaped coupled-fed slot antenna elements that can excite dual resonant modes are integrated into a system circuit board. Spatial and polarization diversity techniques are implemented on these elements so that the improved isolation and mitigated coupling effects can be achieved. The proposed antenna array was manufactured and experimentally measured. Desirable antenna efficiencies of higher than 42% and 62% were measured in the low band and high band, respectively. Vital results, such as the envelope correlation coefficient, channel capacity, and mean effective gain ratio, have also been computed and analyzed. The calculated ergodic channel capacities of the 10 × 10 MIMO system working in the LTE bands 42/43 and LTE band 46 reached up to 48 and 51.4 b/s/Hz, respectively.
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- 2018
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19. A Small-Molecule Pan-Id Antagonist Inhibits Pathologic Ocular Neovascularization
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Paulina M. Wojnarowicz, Raquel Lima e Silva, Masayuki Ohnaka, Sang Bae Lee, Yvette Chin, Anita Kulukian, Sung-Hee Chang, Bina Desai, Marta Garcia Escolano, Riddhi Shah, Marta Garcia-Cao, Sijia Xu, Rashmi Kadam, Yehuda Goldgur, Meredith A. Miller, Ouathek Ouerfelli, Guangli Yang, Tsutomu Arakawa, Steven K. Albanese, William A. Garland, Glenn Stoller, Jaideep Chaudhary, Larry Norton, Rajesh Kumar Soni, John Philip, Ronald C. Hendrickson, Antonio Iavarone, Andrew J. Dannenberg, John D. Chodera, Nikola Pavletich, Anna Lasorella, Peter A. Campochiaro, and Robert Benezra
- Subjects
Biology (General) ,QH301-705.5 - Abstract
Summary: Id helix-loop-helix (HLH) proteins (Id1–4) bind E protein bHLH transcription factors, preventing them from forming active transcription complexes that drive changes in cell states. Id proteins are primarily expressed during development to inhibit differentiation, but they become re-expressed in adult tissues in diseases of the vasculature and cancer. We show that the genetic loss of Id1/Id3 reduces ocular neovascularization in mouse models of wet age-related macular degeneration (AMD) and retinopathy of prematurity (ROP). An in silico screen identifies AGX51, a small-molecule Id antagonist. AGX51 inhibits the Id1-E47 interaction, leading to ubiquitin-mediated degradation of Ids, cell growth arrest, and reduced viability. AGX51 is well-tolerated in mice and phenocopies the genetic loss of Id expression in AMD and ROP models by inhibiting retinal neovascularization. Thus, AGX51 is a first-in-class compound that antagonizes an interaction formerly considered undruggable and that may have utility in the management of multiple diseases. : Wojnarowicz et al., describe the identification, by an in silico screen, and characterization of a small molecule, AGX51, that targets Id proteins. AGX51 treatment of cells lead to Id protein degradation, cell cycle arrest, and reduced cell viability. AGX51 inhibited pathologic ocular neovascularization in mouse models, phenocopying genetic Id loss. Keywords: Id proteins, protein-protein interactions, macular degeneration, retinopathy of prematurity, angiogenesis
- Published
- 2019
- Full Text
- View/download PDF
20. Continuous Resonance Tuning without Blindness by Applying Nonlinear Properties of PIN Diodes
- Author
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Yong Luo, Hongtao Liu, Yiming He, Hengrong Cui, and Guangli Yang
- Subjects
active metamaterial antenna ,continuous tuning ,resonance blindness ,EM co-simulation ,nonlinear property ,Chemical technology ,TP1-1185 - Abstract
Metamaterial antennas consisting of periodical units are suitable for achieving tunable properties by employing active elements to each unit. However, for compact metamaterials with a very limited number of periodical units, resonance blindness exists. In this paper, we introduce a method to achieve continuous tuning without resonance blindness by exploring hence, taking advantage of nonlinear properties of PIN diodes. First, we obtain the equivalent impedance of the PIN diode through measurements, then fit these nonlinear curves with mathematical expressions. Afterwards, we build the PIN diode model with these mathematical equations, making it compatible with implementing co-simulation between the passive electromagnetic model and the active element of PIN diodes and, particularly, the nonlinear effects can be considered. Next, we design a compact two-unit metamaterial antenna as an example to illustrate the electromagnetic co-simulation. Finally, we implement the experiments with a micro-control unit to validate this method. In addition, the nonlinear stability and the supplying voltage tolerance of nonlinear states for both two kinds of PIN diodes are investigated as well. This method of obtaining smooth tuning with nonlinear properties of PIN diodes can be applied to other active devices, if only PIN diodes are utilized.
- Published
- 2021
- Full Text
- View/download PDF
21. Small-Size Reconfigurable Loop Antenna for Mobile Phone Applications
- Author
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Hao Wang, Yibo Wang, Jianlan Wu, Peng Chen, Zheqiang Wu, Chow-Yen-Desmond Sim, and Guangli Yang
- Subjects
Mobile phone antenna ,reconfigurable antenna ,loop antenna ,RF switch ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
A small-size reconfigurable loop antenna for mobile phone applications with a compact volume of 55 × 5 × 3 mm3 is proposed. In addition to the traditional three loop antenna modes, namely, 0.5-λ, 1-λ, and 1.5-λ modes, the proposed loop antenna also generates another 2-λ mode. To cover more operating bands with such compact antenna volume, the reconfigurable technique is therefore applied by inserting an RF switch at the end of the proposed antenna to improve bandwidth at the low band. By combining the four working states of RF switch, the proposed antenna can cover GSM850/900, DCS1800, PCS1900, UMTS2100, and LTE2300/2500 bands with low specific absorption rate and high efficiencies.
- Published
- 2016
- Full Text
- View/download PDF
22. Distinct Spatiotemporal Dynamics of Peptidoglycan Synthesis between Mycobacterium smegmatis and Mycobacterium tuberculosis
- Author
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Helene Botella, Guangli Yang, Ouathek Ouerfelli, Sabine Ehrt, Carl F. Nathan, and Julien Vaubourgeix
- Subjects
cell division ,infectious diseases ,microbiology ,mycobacteria ,peptidoglycan ,tuberculosis ,Microbiology ,QR1-502 - Abstract
ABSTRACT Peptidoglycan (PG), a polymer cross-linked by d-amino acid-containing peptides, is an essential component of the bacterial cell wall. We found that a fluorescent d-alanine analog (FDAA) incorporates chiefly at one of the two poles in Mycobacterium smegmatis but that polar dominance varies as a function of the cell cycle in Mycobacterium tuberculosis: immediately after cytokinesis, FDAAs are incorporated chiefly at one of the two poles, but just before cytokinesis, FDAAs are incorporated comparably at both. These observations suggest that mycobacterial PG-synthesizing enzymes are localized in functional compartments at the poles and septum and that the capacity for PG synthesis matures at the new pole in M. tuberculosis. Deeper knowledge of the biology of mycobacterial PG synthesis may help in discovering drugs that disable previously unappreciated steps in the process. IMPORTANCE People are dying all over the world because of the rise of antimicrobial resistance to medicines that could previously treat bacterial infections, including tuberculosis. Here, we used fluorescent d-alanine analogs (FDAAs) that incorporate into peptidoglycan (PG)—the synthesis of which is an attractive drug target—combined with high- and super-resolution microscopy to investigate the spatiotemporal dynamics of PG synthesis in M. smegmatis and M. tuberculosis. FDAA incorporation predominates at one of the two poles in M. smegmatis. In contrast, while FDAA incorporation into M. tuberculosis is also polar, there are striking variations in polar dominance as a function of the cell cycle. This suggests that enzymes involved in PG synthesis are localized in functional compartments in mycobacteria and that M. tuberculosis possesses a mechanism for maturation of the capacity for PG synthesis at the new pole. This may help in discovering drugs that cripple previously unappreciated steps in the process.
- Published
- 2017
- Full Text
- View/download PDF
23. Honokiol crosses BBB and BCSFB, and inhibits brain tumor growth in rat 9L intracerebral gliosarcoma model and human U251 xenograft glioma model.
- Author
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Xianhuo Wang, Xingmei Duan, Guangli Yang, Xiaoyan Zhang, Linyu Deng, Hao Zheng, Chongyang Deng, Jiaolin Wen, Ning Wang, Cheng Peng, Xia Zhao, Yuquan Wei, and Lijuan Chen
- Subjects
Medicine ,Science - Abstract
BackgroundGliosarcoma is one of the most common malignant brain tumors, and anti-angiogenesis is a promising approach for the treatment of gliosarcoma. However, chemotherapy is obstructed by the physical obstacle formed by the blood-brain barrier (BBB) and blood-cerebrospinal fluid barrier (BCSFB). Honokiol has been known to possess potent activities in the central nervous system diseases, and anti-angiogenic and anti-tumor properties. Here, we hypothesized that honokiol could cross the BBB and BCSFB for the treatment of gliosarcoma.MethodologiesWe first evaluated the abilities of honokiol to cross the BBB and BCSFB by measuring the penetration of honokiol into brain and blood-cerebrospinal fluid, and compared the honokiol amount taken up by brain with that by other tissues. Then we investigated the effect of honokiol on the growth inhibition of rat 9L gliosarcoma cells and human U251 glioma cells in vitro. Finally we established rat 9L intracerebral gliosarcoma model in Fisher 344 rats and human U251 xenograft glioma model in nude mice to investigate the anti-tumor activity.Principal findingsWe showed for the first time that honokiol could effectively cross BBB and BCSFB. The ratios of brain/plasma concentration were respectively 1.29, 2.54, 2.56 and 2.72 at 5, 30, 60 and 120 min. And about 10% of honokiol in plasma crossed BCSFB into cerebrospinal fluid (CSF). In vitro, honokiol produced dose-dependent inhibition of the growth of rat 9L gliosarcoma cells and human U251 glioma cells with IC(50) of 15.61 µg/mL and 16.38 µg/mL, respectively. In vivo, treatment with 20 mg/kg body weight of honokiol (honokiol was given twice per week for 3 weeks by intravenous injection) resulted in significant reduction of tumor volume (112.70±10.16 mm(3)) compared with vehicle group (238.63±19.69 mm(3), P = 0.000), with 52.77% inhibiting rate in rat 9L intracerebral gliosarcoma model, and (1450.83±348.36 mm(3)) compared with vehicle group (2914.17±780.52 mm(3), P = 0.002), with 50.21% inhibiting rate in human U251 xenograft glioma model. Honokiol also significantly improved the survival over vehicle group in the two models (PConclusions/significanceThis study provided the first evidence that honokiol could effectively cross BBB and BCSFB and inhibit brain tumor growth in rat 9L intracerebral gliosarcoma model and human U251 xenograft glioma model. It suggested a significant strategy for offering a potential new therapy for the treatment of gliosarcoma.
- Published
- 2011
- Full Text
- View/download PDF
24. Channel Prediction With Time-Varying Doppler Spectrum in High-Mobility Scenarios: A Polynomial Fourier Transform Based Approach and Field Measurements.
- Author
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Xianling Wang, Yi Shi 0004, Wenbo Xin, Tianci Wang, Guangli Yang, and Zhiyuan Jiang
- Published
- 2023
- Full Text
- View/download PDF
25. A Polynomial Fourier Transform Based Channel Prediction Scheme for High-Mobility Massive MIMO Scenarios.
- Author
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Xianling Wang, Yi Shi 0004, Wenbo Xin, Guangli Yang, and Zhiyuan Jiang
- Published
- 2022
- Full Text
- View/download PDF
26. Simulation of Industrial Economic Development Model Based on BP Neural Network.
- Author
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Haiyan Wu and Guangli Yang
- Published
- 2022
- Full Text
- View/download PDF
27. Data Envelopment Analysis of Economic Benefits of Listed Companies Based on Genetic Algorithm Development and Verification.
- Author
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Zhe Huang and Guangli Yang
- Published
- 2022
- Full Text
- View/download PDF
28. on Short-term Stock Price Forecasting Algorithm based on Artificial Neural Network.
- Author
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Guangli Yang
- Published
- 2022
- Full Text
- View/download PDF
29. Simulation Analysis of Regional Economic System Based on Composite Ecosystem Model.
- Author
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Rongchang Liu and Guangli Yang
- Published
- 2021
- Full Text
- View/download PDF
30. Debt Risk Research on PPP Model Based on VAR (Value at Risk) Model.
- Author
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Guangli Yang, Chao Wang, and Wenmin Kuang
- Published
- 2020
- Full Text
- View/download PDF
31. A New Modeling and Analysis Approach of Overseas Tax Reform Requirements.
- Author
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Chao Wang, GuangLi Yang, and Wenmin Kuang
- Published
- 2020
- Full Text
- View/download PDF
32. Antibiotic and metal resistance of Stenotrophomonas maltophilia isolates from Eboling permafrost of the Tibetan Plateau
- Author
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shuhong zhang, guangli yang, and Yali Jiang
- Subjects
Health, Toxicology and Mutagenesis ,Environmental Chemistry ,General Medicine ,Pollution - Abstract
There is a growing concern about antibiotic and metal resistance in natural and clinical settings. This study examined antibiotic and metal resistance for ancient Stenotrophomonas maltophilia isolated from permafrost. Whole-genome sequencing was applied to examine antibiotic resisrance genes and metal resistance genes. The permafrost S. maltophilia exhibited resistance to chloramphenicol, trimethoprim-sulfamethoxazole, and erythromycin, which is consistent with the presence of multidrug efflux pump smeDEF. The absence of qnrB, qnrR, oqxB, and smrA is consistent with its sensitivity for tetracycline, and ciprofloxacin. Also, the absence of bcrABC is consistent with the strain’s sensitivity to bacitracin. The strain also showed metal resistance to Zn2+, Cu2+, Cr6+, Hg2+, which is consistent with the presence of czcABCD, cueR and copA, chrR, merT, and merD. The strain showed worse resistance (lower MICs) to ciprofloxacin, tetracycline, chloramphenicol, trimethoprim/sulfamethoxazole, and 4 metals Zn2+, Ni2+, Cu2+, and Cr6+, compared with clinical S. maltophilia; the former strain belongs to the lower ARG and MRG gene clusters compared to latter one. Among 12 genomic islands (GIs) in the permafrost strain, 5 contained resistance genes, with only one kind of ARG or MRG, while S. maltophilia from other environments exhibited a minimum of 2 kinds of resistance gene clustering on a single GI. This study demonstrates that continuous exposure to the clinical environment can create a selective pressure on bacteria inducing resistance to antibiotics and metals, involving more ARGs and MRGs via horizontal gene transfer route.
- Published
- 2022
33. Analysis of Prognostic Factors and Development of Nomogram Model for Predicting the Prognosis of Children with Secondary Hemophagocytic Lymphohistiocytosis
- Author
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Zuochen Du, Nandu Luo, Pingping Zhang, Guangli Yang, Baoli Li, Yanjiao Shen, Xiaoqi Shi, Xiuli Cao, Jiaojiao Huang, YAN CHEN, and Pei Huang
- Abstract
Objective: To establish a prediction Nomogram based on prognostic factors for children with hemophagocytic lymphohistiocytosis (HLH). Methods: A retrospective analysis of pediatric HLH cases diagnosed at the Affiliated Hospital of Zunyi Medical University between January 2012 and December 2022 was conducted. Cox regression analysis was used to identify prognostic factors for pediatric HLH patients. The C-index, ROC curve, and AUC were used to evaluate the discrimination of the model. The DCA was used to evaluate the clinical application value of the model. Results: A total of 133 cases of secondary pediatric HLH patients were included in this study, with 45 deaths and 88 survivors. Univariate analysis showed that age ≤ 2 years, PLT ≤ 50×10 /L, HB ≤90 g/L, AST ≥ 200 U/L, CK-MB ≥ 50 U/L, LDH ≥ 1000 U/L, SF ≥1500 μg/L, PT ≥ 20 s, APTT ≥ 40 s, hypoalbuminemia, hypofibrinogenemia, mechanical ventilation, splenomegaly, ARDS, respiratory failure,CNSL, shock, DIC, pulmonary hemorrhage, and gastrointestinal bleeding are risk factors for the survival of those secondary pediatric HLH patients ( P P = 0.049). Multivariable Cox showed that CNSL (HR = 3.18, 95%CI = 1.72-5.89), PLT ≤ 50×10^9/L (HR = 2.16, 95%CI = 1.11-4.19), hypoalbuminemia (HR=2.65, 95%CI=1.14-5.17), and hypofibrinogenemia (HR = 2.48, 95%CI = 1.19-5.14) were independent risk factors for the outcome of children with HLH, while the use of blood purification therapy (HR = 0.32, 95%CI = 0.16-0.64) was an independent protective factor. A Nomogram prediction model was constructed using R software, and the ROC curve , C-index, and calibration curve showed good discrimination and fit of the model. The DCA curve showed that the model had good clinical applicability. Finally, based on the Nomogram score and HR value, the subjects were divided into three groups, and it was found that the mortality rate in the high-risk group was significantly higher than that in the low-risk group. Conclusion: The development of a Nomogram to predict the prognosis of secondary pediatric HLH patients has good discrimination and accuracy and may have good clinical application value.
- Published
- 2023
34. Data from Dual Fluorescence Isogenic Synthetic Lethal Kinase Screen and High-Content Secondary Screening for MUC16/CA125-Selective Agents
- Author
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Oladapo O. Yeku, David R. Spriggs, Hakim Djaballah, Ouathek Ouerfelli, Alexia Iasonos, Qin Zhou, Irva E. Veillard, Raj Kumar, Nestor Rosales, Robin Manson, Guangli Yang, Stephanie Eng, Mengyao Xu, and Thapi D. Rao
- Abstract
Significant strides have been made in the development of precision therapeutics for cancer. Aberrantly expressed glycoproteins represent a potential avenue for therapeutic development. The MUC16/CA125 glycoprotein serves as a biomarker of disease and a driver of malignant transformation in epithelial ovarian cancer. Previously, we demonstrated a proof-of-principle approach to selectively targeting MUC16+ cells. In this report, we performed a synthetic lethal kinase screen using a human kinome RNAi library and identified key pathways preferentially targetable in MUC16+ cells using isogenic dual-fluorescence ovarian cancer cell lines. Using a separate approach, we performed high-content small-molecule screening of six different libraries of 356,982 compounds for MUC16/CA125-selective agents and identified lead candidates that showed preferential cytotoxicity in MUC16+ cells. Compounds with differential activity were selected and tested in various other ovarian cell lines or isogenic pairs to identify lead compounds for structure–activity relationship (SAR) selection. Lead siRNA and small-molecule inhibitor candidates preferentially inhibited invasion of MUC16+ cells in vitro and in vivo, and we show that this is due to decreased activation of MAPK, and non–receptor tyrosine kinases. Taken together, we present a comprehensive screening approach to the development of a novel class of MUC16-selective targeted therapeutics and identify candidates suitable for further clinical development.
- Published
- 2023
35. Supplementary Figure from Dual Fluorescence Isogenic Synthetic Lethal Kinase Screen and High-Content Secondary Screening for MUC16/CA125-Selective Agents
- Author
-
Oladapo O. Yeku, David R. Spriggs, Hakim Djaballah, Ouathek Ouerfelli, Alexia Iasonos, Qin Zhou, Irva E. Veillard, Raj Kumar, Nestor Rosales, Robin Manson, Guangli Yang, Stephanie Eng, Mengyao Xu, and Thapi D. Rao
- Abstract
Supplementary Figure from Dual Fluorescence Isogenic Synthetic Lethal Kinase Screen and High-Content Secondary Screening for MUC16/CA125-Selective Agents
- Published
- 2023
36. Supplementary Methods and Figures S1 to S7 from CSF1/CSF1R Signaling Inhibitor Pexidartinib (PLX3397) Reprograms Tumor-Associated Macrophages and Stimulates T-cell Infiltration in the Sarcoma Microenvironment
- Author
-
John H. Healey, Ed Purdue, Toshifumi Ozaki, Toshiyoshi Fujiwara, Malcolm A.S. Moore, Yildirim Dogan, Hiroshi Tazawa, Toshiaki Hata, Hiroya Kondo, Aki Yoshida, Vinagolu K. Rajasekhar, Ouathek Ouerfelli, Guangli Yang, Alexander B. Christ, Andrew Chandler, Mohamed A. Yakoub, and Tomohiro Fujiwara
- Abstract
Supplementary data file shows supplementary methods and figures S1 to S7. Supplementary Figure S1 shows the establishment of the in vitro sarcoma TAM model. Supplementary Figure S2 shows the effect of anti-CSF-1 and anti-CSF-1R mAb and pazopanib on in vitro sarcoma TAMs. Supplementary Figure S3 show spontaneous lung metastasis in LM8 orthotopic osteosarcoma mouse model. Supplementary Figure S4 shows CSF-1R inhibition by PLX3397 blocks LM8-luc tumor growth and lung metastasis in orthotopic osteosarcoma mouse model. Supplementary Figure S5 shows toxicity assessment by body weight and blood chemistry per treatment group at the end of therapeutic experiments (day 22). Supplementary Figure S6 show histopathological examination of orthotopic osteosarcoma mouse models. Supplementary Figure S7 shows alteration of the TME composition in PLX3397-treated mice after CSF-1R inhibition
- Published
- 2023
37. Data from Novel D761Y and Common Secondary T790M Mutations in Epidermal Growth Factor Receptor–Mutant Lung Adenocarcinomas with Acquired Resistance to Kinase Inhibitors
- Author
-
William Pao, Vincent A. Miller, Marc Ladanyi, Mark G. Kris, Ouathek Ouerfelli, Guangli Yang, Anne Chiang, Maureen F. Zakowski, Allan R. Li, Romel Somwar, Gregory J. Riely, Yixuan Gong, and Marissa N. Balak
- Abstract
Purpose: In patients whose lung adenocarcinomas harbor epidermal growth factor receptor (EGFR) tyrosine kinase domain mutations, acquired resistance to the tyrosine kinase inhibitors (TKI) gefitinib (Iressa) and erlotinib (Tarceva) has been associated with a second-site EGFR mutation, which leads to substitution of methionine for threonine at position 790 (T790M). We aimed to elucidate the frequency and nature of secondary EGFR mutations in patients with acquired resistance to TKI monotherapy.Experimental Design: Tumor cells from patients with acquired resistance were examined for secondary EGFR kinase domain mutations by molecular analyses.Results: Eight of 16 patients (50% observed rate; 95% confidence interval, 25-75%) had tumor cells with second-site EGFR mutations. Seven mutations were T790M and one was a novel D761Y mutation found in a brain metastasis. When combined with a drug-sensitive L858R mutation, the D761Y mutation modestly reduced the sensitivity of mutant EGFR to TKIs in both surrogate kinase and cell viability assays. In an autopsy case, the T790M mutation was found in multiple visceral metastases but not in a brain lesion.Conclusions: The T790M mutation is common in patients with acquired resistance. The limited spectrum of TKI-resistant mutations in EGFR, which binds to erlotinib in the active conformation, contrasts with a wider range of second-site mutations seen with acquired resistance to imatinib, which binds to ABL and KIT, respectively, in closed conformations. Collectively, our data suggest that the type and nature of kinase inhibitor resistance mutations may be influenced by both anatomic site and mode of binding to the kinase target.
- Published
- 2023
38. Supplementary Table 2 from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Supplementary Table 2
- Published
- 2023
39. Supplementary figure S4 from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Supplementary figure S4
- Published
- 2023
40. Data from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Pancreatic adenocarcinoma (PDAC) epitomizes a deadly cancer driven by abnormal KRAS signaling. Here, we show that the eIF4A RNA helicase is required for translation of key KRAS signaling molecules and that pharmacological inhibition of eIF4A has single-agent activity against murine and human PDAC models at safe dose levels. EIF4A was uniquely required for the translation of mRNAs with long and highly structured 5′ untranslated regions, including those with multiple G-quadruplex elements. Computational analyses identified these features in mRNAs encoding KRAS and key downstream molecules. Transcriptome-scale ribosome footprinting accurately identified eIF4A-dependent mRNAs in PDAC, including critical KRAS signaling molecules such as PI3K, RALA, RAC2, MET, MYC, and YAP1. These findings contrast with a recent study that relied on an older method, polysome fractionation, and implicated redox-related genes as eIF4A clients. Together, our findings highlight the power of ribosome footprinting in conjunction with deep RNA sequencing in accurately decoding translational control mechanisms and define the therapeutic mechanism of eIF4A inhibitors in PDAC.Significance:These findings document the coordinate, eIF4A-dependent translation of RAS-related oncogenic signaling molecules and demonstrate therapeutic efficacy of eIF4A blockade in pancreatic adenocarcinoma.
- Published
- 2023
41. Supplementary Table 4 from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Supplementary Table 4
- Published
- 2023
42. Supplementary Methods and Figure Legends from Novel D761Y and Common Secondary T790M Mutations in Epidermal Growth Factor Receptor–Mutant Lung Adenocarcinomas with Acquired Resistance to Kinase Inhibitors
- Author
-
William Pao, Vincent A. Miller, Marc Ladanyi, Mark G. Kris, Ouathek Ouerfelli, Guangli Yang, Anne Chiang, Maureen F. Zakowski, Allan R. Li, Romel Somwar, Gregory J. Riely, Yixuan Gong, and Marissa N. Balak
- Abstract
Supplementary Methods and Figure Legends from Novel D761Y and Common Secondary T790M Mutations in Epidermal Growth Factor Receptor–Mutant Lung Adenocarcinomas with Acquired Resistance to Kinase Inhibitors
- Published
- 2023
43. Supplementary Figures 1-3 from Novel D761Y and Common Secondary T790M Mutations in Epidermal Growth Factor Receptor–Mutant Lung Adenocarcinomas with Acquired Resistance to Kinase Inhibitors
- Author
-
William Pao, Vincent A. Miller, Marc Ladanyi, Mark G. Kris, Ouathek Ouerfelli, Guangli Yang, Anne Chiang, Maureen F. Zakowski, Allan R. Li, Romel Somwar, Gregory J. Riely, Yixuan Gong, and Marissa N. Balak
- Abstract
Supplementary Figures 1-3 from Novel D761Y and Common Secondary T790M Mutations in Epidermal Growth Factor Receptor–Mutant Lung Adenocarcinomas with Acquired Resistance to Kinase Inhibitors
- Published
- 2023
44. Supplementary Table 1 from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Supplementary Table 1
- Published
- 2023
45. Supplementary Table 3 from Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules
- Author
-
Hans-Guido Wendel, Zhengqing Ouyang, Steven D. Leach, Gunnar Rätsch, Peter T. Meinke, Andrew W. Stamford, Elisa de Stanchina, Agnes Viale, Ouathek Ouerfelli, Guangli Yang, Yoshiyuki Fukase, Mark Duggan, Rachel K. Beyer, Jerry P. Melchor, Qing Chang, Paul B. Romesser, Stefan G. Stark, Antonija Burčul, Olivera Grbovic-Huezo, Man Jiang, Viraj R. Sanghvi, Askan Gokce, Prathibha Mohan, Nicolas Lecomte, Jianan Lin, and Kamini Singh
- Abstract
Supplementary Table 3
- Published
- 2023
46. Dual Fluorescence Isogenic Synthetic Lethal Kinase Screen and High-Content Secondary Screening for MUC16/CA125-Selective Agents
- Author
-
Thapi D. Rao, Mengyao Xu, Stephanie Eng, Guangli Yang, Robin Manson, Nestor Rosales, Raj Kumar, Irva E. Veillard, Qin Zhou, Alexia Iasonos, Ouathek Ouerfelli, Hakim Djaballah, David R. Spriggs, and Oladapo O. Yeku
- Subjects
Ovarian Neoplasms ,Cancer Research ,Oncology ,CA-125 Antigen ,Cell Line, Tumor ,Humans ,Membrane Proteins ,Female ,Carcinoma, Ovarian Epithelial ,Fluorescence ,Article - Abstract
Significant strides have been made in the development of precision therapeutics for cancer. Aberrantly expressed glycoproteins represent a potential avenue for therapeutic development. The MUC16/CA125 glycoprotein serves as a biomarker of disease and a driver of malignant transformation in epithelial ovarian cancer. Previously, we demonstrated a proof-of-principle approach to selectively targeting MUC16+ cells. In this report, we performed a synthetic lethal kinase screen using a human kinome RNAi library and identified key pathways preferentially targetable in MUC16+ cells using isogenic dual-fluorescence ovarian cancer cell lines. Using a separate approach, we performed high-content small-molecule screening of six different libraries of 356,982 compounds for MUC16/CA125-selective agents and identified lead candidates that showed preferential cytotoxicity in MUC16+ cells. Compounds with differential activity were selected and tested in various other ovarian cell lines or isogenic pairs to identify lead compounds for structure–activity relationship (SAR) selection. Lead siRNA and small-molecule inhibitor candidates preferentially inhibited invasion of MUC16+ cells in vitro and in vivo, and we show that this is due to decreased activation of MAPK, and non–receptor tyrosine kinases. Taken together, we present a comprehensive screening approach to the development of a novel class of MUC16-selective targeted therapeutics and identify candidates suitable for further clinical development.
- Published
- 2022
47. Corrigendum: A comparative study on the tax and fee reduction policies for sustainable development: Empirical analysis from the world’s three major economies in tackling COVID-19
- Author
-
Yujuan, Ma, primary, Guangli, Yang, additional, and Bo, Li, additional
- Published
- 2022
- Full Text
- View/download PDF
48. Temperature characteristics analysis of a Tm3+-doped heterogeneous helical cladding fiber amplifier
- Author
-
Xiao Shen, Jianhong Zhou, Guangli Yang, Jian Jiang, and Wei Wei
- Subjects
Physics and Astronomy (miscellaneous) ,General Engineering ,General Physics and Astronomy - Published
- 2022
49. High Aperture Efficiency Low Profile Luneburg Lens Antenna
- Author
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Xiyv Zhu and Guangli Yang
- Published
- 2022
50. A Wideband mmWave Antenna in Fan-Out Wafer Level Packaging With Tall Vertical Interconnects for 5G Wireless Communication
- Author
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Guangli Yang, Bin Yu, Cheng Chung Lin, Johnson Lin, Yong Luo, Zhanyi Qian, and Yue Ping Zhang
- Subjects
Packaging engineering ,Computer science ,business.industry ,Bandwidth (signal processing) ,Electrical engineering ,Impedance matching ,law.invention ,Radiation pattern ,law ,Dipole antenna ,Electrical and Electronic Engineering ,Antenna (radio) ,Wideband ,business ,Wafer-level packaging - Abstract
A novel fan-out wafer-level packaging (FOWLP) technology with double-sided redistribution layers (RDLs) and tall copper vertical interconnects is described. The design of a dual-polarized magnetoelectric (ME) dipole antenna based on this new packaging technology is presented. It is shown that the antenna with a size of $10\times10$ mm2 achieves good impedance matching and a stable radiation pattern over a wide bandwidth from 25 to 43 GHz, which can cover most of the millimeter-wave (mmWave) bands of the fifth-generation (5G) mobile networks in different countries. The measurement results demonstrate that the antenna is well suited for FOWLP technology and can be used for phased-array modules in 5G wireless communication systems.
- Published
- 2021
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