1
|
Liu Q, Shi K, Bai Y, Yang F, Lei C, Wang X, Hu Y, Wang S, Wang R, Yu Y, Liu X, Yu X, Zhang L, Tang L, Li S, Meng Q. Biology of tongue coating in different disease stages of RA and its value in disease progression. Microb Pathog 2024; 191:106644. [PMID: 38616001 DOI: 10.1016/j.micpath.2024.106644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/04/2024] [Accepted: 04/10/2024] [Indexed: 04/16/2024]
Abstract
OBJECTIVE To assess and compare the composition of tongue coating microbiota among patients at different stages of rheumatoid arthritis (RA). METHODS A total of 47 patients diagnosed with RA, as per the American College of Rheumatology criteria, and 10 healthy individuals were enrolled in this study. The RA patients were stratified considering their Disease Activity Score 28 (DAS28), a composite measure based on the 28 tender and swollen joint count and erythrocyte sedimentation rate (ESR). The study population was further categorized into active phase group (LMH group) and inactive phase group (RE group) according to their DAS28 values. DNA extraction was extracted from tongue coating samples. Subsequently, the V3-V4 16S rDNA region was selectively amplified and sequenced through high-throughput 16S rDNA analysis. The resulting data were then utilized to ascertain the microbial contents. RESULTS Significant variations were observed in the tongue coating microbiota of patients with RA during active and inactive phases, in comparison to healthy individuals (p < 0.05). At the genus level, the presence of Prevotellan, Veillonella, Rothia, and Neisseria in RA patients was notably more evident than in the healthy control (HC) group. These disparities find support in existing research on gut and oral microbiota. During the active phase of RA, the relative abundance of Veillonella, Rothia, and Neisseria in the tongue coating microbiota of patients was significantly higher than in those with inactive RA. These findings underscore the need for further and in-depth research on the potential impact of these microorganisms on the progression of RA disease. CONCLUSION The results substantiate the hypothesis that tongue coating microbes actively contribute to the progression of RA.
Collapse
Affiliation(s)
- Qian Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Kangle Shi
- School of Artificial Intelligence, University of Chinese Academy of Sciences, Beijing, China.
| | - Yunjing Bai
- Department of Rheumatism and Immunology, Seventh Medical Center of PLA General Hospital, Beijing, China
| | - Fangyan Yang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Cong Lei
- School of Basic Medicine, Heilongjiang University of Chinese Medicine, China
| | - Xiaocong Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Ying Hu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Shiyao Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Ruikun Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Yuefan Yu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Xiaoyu Liu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China; Department of Nephropathy and Endocrinology, Dongzhimen Hospital of Beijing University of Chinese Medicine, Beijing, China
| | - Xinping Yu
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Lingling Zhang
- Department of Rheumatology and Clinical Immunology, Beijing Shijitan Hospital, Capital Medical University, China
| | - Ling Tang
- Nursing Department, DongFang Hospital of Beijing University of Chinese Medicine, China
| | - Suqian Li
- Department of Rheumatism, DongFang Hospital of Beijing University of Chinese Medicine, China
| | - Qinggang Meng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China.
| |
Collapse
|
2
|
An Q, Wang Y, Wang R, Meng Q, Ma Y. Research on the spatial patterns and evolution trends of the coupling coordination between digital finance and sustainable economic development in the Yellow River Basin, China. PLoS One 2024; 19:e0296868. [PMID: 38190389 PMCID: PMC10773952 DOI: 10.1371/journal.pone.0296868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 12/21/2023] [Indexed: 01/10/2024] Open
Abstract
In the current global context, digital finance (DF) and sustainable economic development (SED) are important topics. The synergies between DF and SED have already been proven. However, the measurement and quantitative analysis of the coupling coordination degree (CCD) of DF and SED have not received sufficient attention to date. Based on data from 55 cities in the Yellow River Basin (YRB) from 2011 to 2021, this study constructs an evaluation index system of DF and SED and measures their level, respectively. The proposed CCD model is then used to measure the CCD between the two systems. In addition, kernel density estimation, Markov chain, σ-convergence, β-convergence, and the quadratic assignment procedure (QAP) method are used to study the spatial pattern, distribution dynamic evolution trend, convergence, and influencing factors of the regional differences in the CCD. The results show that: (1) From 2011 to 2021, the CCD level showed a stable upward trend and regional heterogeneity, and the time stage characteristics were more obvious. (2) The center position and change interval of the overall distribution curve of the kernel density estimation gradually shifted to the right. The Markov transfer probability matrix shows that the CCD is more stable among different levels, indicating a phenomenon of "club convergence". (3) A convergence analysis shows that there are significant σ-convergence, absolute β-convergence, and conditional β-convergence. (4) The QAP regression shows that factors such as the regional differences in GDP per capita have a significant impact on the regional differences in the CCD. This study offers a comprehensive structure that can be used to examine the synergistic effects between DF and SED; the research findings can also provide perspectives for other areas.
Collapse
Affiliation(s)
- Qiguang An
- School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan, China
| | - Yongkai Wang
- School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan, China
| | - Ruoyu Wang
- School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan, China
| | - Qinggang Meng
- School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan, China
| | - Yunpeng Ma
- School of Statistics and Mathematics, Shandong University of Finance and Economics, Jinan, China
| |
Collapse
|
3
|
Xu X, Zhong T, Zhou F, Li R, Trajcevski G, Meng Q. Learning Spatiotemporal Manifold Representation for Probabilistic Land Deformation Prediction. IEEE Trans Cybern 2024; 54:572-585. [PMID: 37486826 DOI: 10.1109/tcyb.2023.3291049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
Landslides refer to occurrences of massive ground movements due to geological (and meteorological) factors, and can have disastrous impacts on property, economy, and even lead to the loss of life. The advances in remote sensing provide accurate and continuous terrain monitoring, enabling the study and analysis of land deformation which, in turn, can be used for land deformation prediction. Prior studies either rely on predefined factors and patterns or model static land observations without considering the subtle interactions between different point locations and the dynamic changes of the surface conditions, causing the prediction model to be less generalized and unable to capture the temporal deformation characteristics. To address these issues, we present DyLand, a dynamic manifold learning framework that models the dynamic structures of the terrain surface. We contribute to the land deformation prediction literature in four directions. First, DyLand learns the spatial connections of interferometric synthetic aperture radar (InSAR) measurements and estimates the conditional distributions on a dynamic terrain manifold with a novel normalizing flow-based method. Second, instead of modeling the stable terrains, we incorporate surface permutations and capture the innate dynamics of the land surface while allowing for tractable likelihood estimations on the manifold. Third, we formulate the spatiotemporal learning of land deformations as a dynamic system and unify the learning of spatial embeddings and surface deformation. Finally, extensive experiments on curated real-world InSAR datasets (land slopes prone to landslides) show that DyLand outperforms existing benchmark models.
Collapse
|
4
|
Meng Q, Wang J, Chen D, Chen J, Xie B, Lu Y. A novel evolutionary method for parameter-free MEMS structural design and its application in piezoresistive pressure sensors. Microsyst Nanoeng 2023; 9:134. [PMID: 37900976 PMCID: PMC10600208 DOI: 10.1038/s41378-023-00596-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 07/05/2023] [Accepted: 08/04/2023] [Indexed: 10/31/2023]
Abstract
In this paper, a novel simulation-based evolutionary method is presented for designing parameter-free MEMS structures with maximum degrees of freedom. This novel design method enabled semiautomatic structure evolution by weighing the attributes of each segment of the structure and yielded an optimal design after multiple iterations. The proposed method was utilized to optimize the pressure-sensitive diaphragm of a piezoresistive pressure sensor (PPS). Finite element method (FEM) simulations revealed that, in comparison to conventional diaphragms without islands and with square islands, the optimized diaphragm increased the stress by 10% and 16% and reduced the nonlinearity by 57% and 77%, respectively. These improvements demonstrate the value of this method. Characterization of the fabricated PPS revealed a high sensitivity of 8.8 mV V-1 MPa-1 and a low nonlinearity of 0.058% FS at 20 °C, indicating excellent sensor performance.
Collapse
Affiliation(s)
- Qinggang Meng
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Junbo Wang
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Deyong Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Jian Chen
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
- School of Electronic, Electrical and Communication Engineering, University of Chinese Academy of Sciences, 100049 Beijing, China
| | - Bo Xie
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
| | - Yulan Lu
- State Key Laboratory of Transducer Technology, Aerospace Information Research Institute, Chinese Academy of Sciences, 100190 Beijing, China
| |
Collapse
|
5
|
Wang J, Ji Z, Zhang H, Wang Z, Meng Q. Synchronization of Generally Uncertain Markovian Inertial Neural Networks With Random Connection Weight Strengths and Image Encryption Application. IEEE Trans Neural Netw Learn Syst 2023; 34:5911-5925. [PMID: 34910641 DOI: 10.1109/tnnls.2021.3131512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This article focuses on the synchronization problem of delayed inertial neural networks (INNs) with generally uncertain Markovian jumping and their applications in image encryption. The random connection weight strengths and generally uncertain Markovian are discussed in the INNs model. Compared with most existing INNs models that have constant connection weight strengths, our model is more practical because connection weight strengths of INNs may randomly vary due to the external and internal environment and human factor. The delay-range-dependent synchronization conditions (DRDSCs) could be obtained by adopting the delay-product-term Lyapunov-Krasovskii functional (DPTLKF) and higher order polynomial-based relaxed inequality (HOPRII). In addition, the desired controllers are obtained by solving a set of linear matrix inequalities. Finally, two examples are shown to demonstrate the effectiveness of the proposed results.
Collapse
|
6
|
Chen S, Zhang D, Zheng H, Cao T, Xia K, Su M, Meng Q. The association between retina thinning and hippocampal atrophy in Alzheimer's disease and mild cognitive impairment: a meta-analysis and systematic review. Front Aging Neurosci 2023; 15:1232941. [PMID: 37680540 PMCID: PMC10481874 DOI: 10.3389/fnagi.2023.1232941] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 07/31/2023] [Indexed: 09/09/2023] Open
Abstract
Introduction The retina is the "window" of the central nervous system. Previous studies discovered that retinal thickness degenerates through the pathological process of the Alzheimer's disease (AD) continuum. Hippocampal atrophy is one of the typical clinical features and diagnostic criteria of AD. Former studies have described retinal thinning in normal aging subjects and AD patients, yet the association between retinal thickness and hippocampal atrophy in AD is unclear. The optical coherence tomography (OCT) technique has access the non-invasive to retinal images and magnetic resonance imaging can outline the volume of the hippocampus. Thus, we aim to quantify the correlation between these two parameters to identify whether the retina can be a new biomarker for early AD detection. Methods We systematically searched the PubMed, Embase, and Web of Science databases from inception to May 2023 for studies investigating the correlation between retinal thickness and hippocampal volume. The Newcastle-Ottawa Quality Assessment Scale (NOS) was used to assess the study quality. Pooled correlation coefficient r values were combined after Fisher's Z transformation. Moderator effects were detected through subgroup analysis and the meta-regression method. Results Of the 1,596 citations initially identified, we excluded 1,062 studies after screening the titles and abstract (animal models, n = 99; irrelevant literature, n = 963). Twelve studies met the inclusion criteria, among which three studies were excluded due to unextractable data. Nine studies were eligible for this meta-analysis. A positive moderate correlation between the retinal thickness was discovered in all participants of with AD, mild cognitive impairment (MCI), and normal controls (NC) (r = 0.3469, 95% CI: 0.2490-0.4377, I2 = 5.0%), which was significantly higher than that of the AD group (r = 0.1209, 95% CI:0.0905-0.1510, I2 = 0.0%) (p < 0.05). Among different layers, the peripapillary retinal nerve fiber layer (pRNFL) indicated a moderate positive correlation with hippocampal volume (r = 0.1209, 95% CI:0.0905-0.1510, I2 = 0.0%). The retinal pigmented epithelium (RPE) was also positively correlated [r = 0.1421, 95% CI:(-0.0447-0.3192), I2 = 84.1%]. The retinal layers and participants were the main overall heterogeneity sources. Correlation in the bilateral hemisphere did not show a significant difference. Conclusion The correlation between RNFL thickness and hippocampal volume is more predominant in both NC and AD groups than other layers. Whole retinal thickness is positively correlated to hippocampal volume not only in AD continuum, especially in MCI, but also in NC. Systematic review registration https://www.crd.york.ac.uk/PROSPERO/, CRD42022328088.
Collapse
Affiliation(s)
- Shuntai Chen
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Dian Zhang
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Honggang Zheng
- Department of Oncology, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Tianyu Cao
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Kun Xia
- Department of Respiratory, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Mingwan Su
- Department of Respiratory, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Qinggang Meng
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| |
Collapse
|
7
|
Davies CJ, Fan Z, Morgado KP, Liu Y, Regouski M, Meng Q, Thomas AJ, Yun SI, Song BH, Frank JC, Perisse IV, Van Wettere A, Lee YM, Polejaeva IA. Development and characterization of type I interferon receptor knockout sheep: A model for viral immunology and reproductive signaling. Front Genet 2022; 13:986316. [PMID: 36246651 PMCID: PMC9556006 DOI: 10.3389/fgene.2022.986316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 08/17/2022] [Indexed: 11/21/2022] Open
Abstract
Type I interferons (IFNs) initiate immune responses to viral infections. Their effects are mediated by the type I IFN receptor, IFNAR, comprised of two subunits: IFNAR1 and IFNAR2. One or both chains of the sheep IFNAR were disrupted in fetal fibroblast lines using CRISPR/Cas9 and 12 lambs were produced by somatic cell nuclear transfer (SCNT). Quantitative reverse transcription-polymerase chain reaction for IFN-stimulated gene expression showed that IFNAR deficient sheep fail to respond to IFN-alpha. Furthermore, fibroblast cells from an IFNAR2−/− fetus supported significantly higher levels of Zika virus (ZIKV) replication than wild-type fetal fibroblast cells. Although many lambs have died from SCNT related problems or infections, one fertile IFNAR2−/− ram lived to over 4 years of age, remained healthy, and produced more than 80 offspring. Interestingly, ZIKV infection studies failed to demonstrate a high level of susceptibility. Presumably, these sheep compensated for a lack of type I IFN signaling using the type II, IFN-gamma and type III, IFN-lambda pathways. These sheep constitute a unique model for studying the pathogenesis of viral infection. Historical data supports the concept that ruminants utilize a novel type I IFN, IFN-tau, for pregnancy recognition. Consequently, IFNAR deficient ewes are likely to be infertile, making IFNAR knockout sheep a valuable model for studying pregnancy recognition. A breeding herd of 32 IFNAR2+/− ewes, which are fertile, has been developed for production of IFNAR2−/− sheep for both infection and reproduction studies.
Collapse
Affiliation(s)
- Christopher J. Davies
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
- Center for Integrated BioSystems, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
- *Correspondence: Christopher J. Davies, ; Irina A. Polejaeva,
| | - Zhiqiang Fan
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Kira P. Morgado
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
- Center for Integrated BioSystems, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Ying Liu
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Misha Regouski
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Aaron J. Thomas
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
- Center for Integrated BioSystems, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Sang-Im Yun
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Byung-Hak Song
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Jordan C. Frank
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Iuri V. Perisse
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Arnaud Van Wettere
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Young-Min Lee
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
| | - Irina A. Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, College of Agriculture and Applied Sciences, Utah State University, Logan, UT, United States
- *Correspondence: Christopher J. Davies, ; Irina A. Polejaeva,
| |
Collapse
|
8
|
Yang J, Meng Q, Lu W, Fu L, Zhang B. Editorial: Data gathering, quality and security in intelligent phytoprotection. Front Plant Sci 2022; 13:1010525. [PMID: 36131798 PMCID: PMC9483204 DOI: 10.3389/fpls.2022.1010525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/22/2022] [Indexed: 06/15/2023]
Affiliation(s)
- Jiachen Yang
- School of Electrical and Information Engineering, Tianjin University, Tainjin, China
| | - Qinggang Meng
- School of Computer Science and Informatics, Loughborough University, Loughborough, United Kingdom
| | - Wen Lu
- School of Electronic Engineering, Xidian University, Xi'an, China
| | - Longsheng Fu
- College of Mechanical and Electronic Engineering, Northwest A&F University, Xianyang, China
| | - Baohua Zhang
- College of Artificial Intelligence, Nanjing Agricultural University, Nanjing, China
| |
Collapse
|
9
|
Yang J, Zhao Y, Liu J, Jiang B, Meng Q, Lu W, Gao X. No Reference Quality Assessment for Screen Content Images Using Stacked Autoencoders in Pictorial and Textual Regions. IEEE Trans Cybern 2022; 52:2798-2810. [PMID: 33055048 DOI: 10.1109/tcyb.2020.3024627] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Recently, the visual quality evaluation of screen content images (SCIs) has become an important and timely emerging research theme. This article presents an effective and novel blind quality evaluation metric for SCIs by using stacked autoencoders (SAE) based on pictorial and textual regions. Since the SCI consists of not only the pictorial area but also the textual area, the human visual system (HVS) is not equally sensitive to their different distortion types. First, the textual and pictorial regions can be obtained by dividing an input SCI via an SCI segmentation metric. Next, we extract quality-aware features from the textual region and pictorial region, respectively. Then, two different SAEs are trained via an unsupervised approach for quality-aware features that are extracted from these two regions. After the training procedure of the SAEs, the quality-aware features can evolve into more discriminative and meaningful features. Subsequently, the evolved features and their corresponding subjective scores are input into two regressors for training. Each regressor can obtain one output predictive score. Finally, the final perceptual quality score of a test SCI is computed by these two predicted scores via a weighted model. Experimental results on two public SCI-oriented databases have revealed that the proposed scheme can compare favorably with the existing blind image quality assessment metrics.
Collapse
|
10
|
Wang J, Zhang H, Fu J, Liang H, Meng Q. Dissipativity-Based Consensus Tracking Control of Nonlinear Multiagent Systems With Generally Uncertain Markovian Switching Topologies and Event-Triggered Strategy. IEEE Trans Cybern 2022; PP:1-16. [PMID: 35077386 DOI: 10.1109/tcyb.2022.3141599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This article focuses on the dissipativity-based consensus tracking control (DBCTC) problems of time-varying delayed leader-following nonlinear multiagent systems (LFNMASs) with the event-triggered transmission strategy. The switching topologies of the LFNMASs are subject to the uncertain and partially unknown generally Markovian jumping process. The control inputs of the following agents are updated according to the proposed event-triggered transmission strategy, which could reduce the communication burden. Based on the event-triggered transmission condition and distributed consensus protocol, some dissipativity-based criteria obtained by adopting the delay-product-term Lyapunov-Krasovskii functional (DPTLKF) and higher order polynomial-based relaxed inequality (HOPRII) are proposed to guarantee the LFNMAS consensus. The validity of the main results is verified by two simulation examples.
Collapse
|
11
|
|
12
|
Abstract
CONTEXT Baicalin, a major flavonoid extracted from Scutellaria baicalensis Georgi (Lamiaceae), has been shown to exert therapeutic effects on pulmonary fibrosis (PF). OBJECTIVE To use serum metabolomics combined with biochemical and histopathological analyses to clarify anti-PF mechanisms of baicalin on metabolic pathways and the levels of potential biomarkers. MATERIALS AND METHODS Forty male Sprague-Dawley rats were randomly divided into the control, PF model, prednisolone acetate-treated (4.2 mg/kg/day) and baicalin-treated (25 and 100 mg/kg/day) groups. A rat model of PF was established using a tracheal injection of bleomycin, and the respective drugs were administered intragastrically for 4 weeks. Histomorphology of lung tissue was examined after H&E and Masson's trichrome staining. Biochemical indicators including SOD, MDA and HYP were measured. Serum-metabonomic analysis based on UPLC-Q-TOF/MS was used to clarify the changes in potential biomarkers among different groups of PF rats. RESULTS Both doses of baicalin effectively alleviated bleomycin-induced pathological changes, and increased the levels of SOD (from 69.48 to 99.50 and 112.30, respectively), reduced the levels of MDA (from 10.91 to 5.0 and 7.53, respectively) and HYP (from 0.63 to 0.41 and 0.49, respectively). Forty-eight potential biomarkers associated with PF were identified. Meanwhile, the metabolic profiles and fluctuating metabolite levels were normalized or partially reversed after baicalin treatment. Furthermore, baicalin was found to improve PF potentially by the regulation of four key biomarkers involving taurine and hypotaurine metabolism, glutathione metabolism, and glycerophospholipid metabolism. CONCLUSIONS These findings revealed the anti-fibrotic mechanisms of baicalin and it may be considered as an effective therapy for PF.
Collapse
Affiliation(s)
- Hong Chang
- Department of Pharmacy, Baotou Medical College, Baotou, China
| | - Hong-yu Meng
- Nephroendocrine Department, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
| | - Wan-fu Bai
- Department of Pharmacy, Baotou Medical College, Baotou, China
| | - Qing-gang Meng
- Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
- CONTACT Qing-gang Meng Department of Traditional Chinese Medicine, Beijing University of Chinese Medicine, No. 11, North third Ring Road East, Chaoyang District, Beijing100700, China
| |
Collapse
|
13
|
Cuthbert JM, Russell SJ, Polejaeva IA, Meng Q, White KL, Benninghoff AD. Comparing mRNA and sncRNA profiles during the maternal-to-embryonic transition in bovine IVF and scNT embryos. Biol Reprod 2021; 105:1401-1415. [PMID: 34514499 DOI: 10.1093/biolre/ioab169] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 07/09/2021] [Accepted: 09/02/2021] [Indexed: 12/14/2022] Open
Abstract
Production of embryos with high developmental competence by somatic cell nuclear transfer (scNT) is far less efficient than for in vitro fertilized (IVF) embryos, likely due to an accumulation of errors in genome reprogramming that results in aberrant expression of RNA transcripts, including messenger RNAs (mRNA) and, possibly, microRNAs (miRNA). Thus, our objectives were to use RNAseq to determine the dynamics of mRNA expression in early developing scNT and IVF embryos in the context of the maternal-to-embryonic transition (MET) and to correlate apparent transcriptional dysregulation in cloned embryos with miRNA expression profiles. Comparisons between scNT and IVF embryos indicated large scale transcriptome differences, which were most evident at the 8-cell and morula stages for genes associated with biological functions critical for the MET. For two miRNAs previously identified as differentially expressed in scNT morulae, miR-34a and miR-345, negative correlations with some predicted mRNA targets were apparent, though not widespread among the majority of predicted targets. Moreover, although large-scale aberrations in expression of mRNAs were evident during the MET in cattle scNT embryos, these changes were not consistently correlated with aberrations in miRNA expression at the same developmental stage, suggesting that other mechanisms controlling gene expression may be involved.
Collapse
Affiliation(s)
- Jocelyn M Cuthbert
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Stewart J Russell
- CReATe Fertility Centre, 790 Bay St. #1100, Toronto, M5G 1N8, Canada
| | - Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Kenneth L White
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| |
Collapse
|
14
|
Martinez-Garcia M, Kalawsky RS, Gordon T, Smith T, Meng Q, Flemisch F. Communication and Interaction With Semiautonomous Ground Vehicles by Force Control Steering. IEEE Trans Cybern 2021; 51:3913-3924. [PMID: 32966229 DOI: 10.1109/tcyb.2020.3020217] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
While full automation of road vehicles remains a future goal, shared-control and semiautonomous driving-involving transitions of control between the human and the machine-are more feasible objectives in the near term. These alternative driving modes will benefit from new research toward novel steering control devices, more suitably where machine intelligence only partially controls the vehicle. In this article, it is proposed that when the human shares the control of a vehicle with an autonomous or semiautonomous system, a force control, or nondisplacement steering wheel (i.e., a steering wheel which does not rotate but detects the applied torque by the human driver) can be advantageous under certain schemes: tight rein or loose rein modes according to the H -metaphor. We support this proposition with the first experiments to the best of our knowledge, in which human participants drove in a simulated road scene with a force control steering wheel (FCSW). The experiments exhibited that humans can adapt promptly to force control steering and are able to control the vehicle smoothly. Different transfer functions are tested, which translate the applied torque at the FCSW to the steering angle at the wheels of the vehicle; it is shown that fractional order transfer functions increment steering stability and control accuracy when using a force control device. The transition of control experiments is also performed with both: a conventional and an FCSW. This prototypical steering system can be realized via steer-by-wire controls, which are already incorporated in commercially available vehicles.
Collapse
|
15
|
Wang C, Meng Q. Global Research Trends of Herbal Medicine for Pain in Three Decades (1990-2019): A Bibliometric Analysis. J Pain Res 2021; 14:1611-1626. [PMID: 34113168 PMCID: PMC8187106 DOI: 10.2147/jpr.s311311] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 05/08/2021] [Indexed: 12/28/2022] Open
Abstract
Purpose The aim of this study was to explore the global research trends of herbal medicine for pain from 1990 to 2019, using bibliometric methods, and explore international collaborations, intellectual structure, the evolution of active topics, emerging trends, and research frontiers. Methods Articles on herbal medicine for pain were retrieved from WoSCC. Two information visualization softwares including CiteSpace and HistCite were used to process bibliographic catalogs. Identification of international collaborations, intellectual structure, the evolution of active topics, emerging trends, and research frontiers were performed based on results from bibliometric analysis. Results A total of 2986 original articles published between 1990 and 2019 were identified based on the inclusion criteria. The number of publications on herbal medicine for pain in WoSCC significantly increased. China ranked highest in the number of scientific outputs; however, articles with the highest citation rates were found to be from the United States. China–Japan reported the most active collaborations, whereas Kyung Hee University from South Korea was the most productive institution. Zhang Y was the most productive author, whereas research by Sherman KJ and Vane JR had the highest influence. Journal of Ethnopharmacology was the most active journal, whereas Integrative and Complementary Medicine was the most active research area. History of herbal medicine for pain research comprises three major phases of activities. The main points of focus of bibliometric analysis of herbal medicine for pain include “knee osteoarthritis”, “cancer”, “low back pain”, etc.. Moreover, research on mechanisms of action of herbal medicine for pain remains at the forefront of this field. Conclusion This paper provides a basis for future development of research on herbal medicine for pain, which may help researchers explore new directions for future research and identify new perspectives on potential collaborations in this field.
Collapse
Affiliation(s)
- Chennan Wang
- School of Traditional Chinese Medicine, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Qinggang Meng
- System Complexity Research Center of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| |
Collapse
|
16
|
Cuthbert JM, Russell SJ, Polejaeva IA, Meng Q, White KL, Benninghoff AD. Dynamics of small non-coding RNAs in bovine scNT embryos through the maternal-to-embryonic transition. Biol Reprod 2021; 105:918-933. [PMID: 34086842 DOI: 10.1093/biolre/ioab107] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/14/2021] [Accepted: 05/27/2021] [Indexed: 11/13/2022] Open
Abstract
The efficiency of somatic cell nuclear transfer (scNT) for production of viable offspring is relatively low as compared to in vitro fertilization (IVF), presumably due to deficiencies in epigenetic reprogramming of the donor cell genome. Such defects may also involve the population of small non-coding RNAs (sncRNAs), which are important during early embryonic development. The objective of this study was to examine dynamic changes in relative abundance of sncRNAs during the maternal-to embryonic transition (MET) in bovine embryos produced by scNT as compared to IVF by using RNA sequencing. When comparing populations of miRNA in scNT versus IVF embryos, only miR-2340, miR-345, and miR34a were differentially expressed in morulae, though many more miRNAs were differentially expressed when comparing across developmental stages. Also of interest, distinct populations of piwi-interacting like RNAs (pilRNAs) were identified in bovine embryos prior to and during embryonic genome activation (EGA) as compared bovine embryos post EGA and differentiated cells. Overall, sncRNA sequencing analysis of preimplantation embryos revealed largely similar profiles of sncRNAs for IVF and scNT embryos at the 2-cell, 8-cell, morula and blastocyst stages of development. However, these sncRNA profiles, including miRNA, piRNA and tRNA fragments, were notably distinct prior to and after completion of the MET.
Collapse
Affiliation(s)
- Jocelyn M Cuthbert
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Stewart J Russell
- CReATe Fertility Centre, 790 Bay St. #1100, Toronto, M5G 1N8, Canada
| | - Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Kenneth L White
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, 4815 Old Main Hill, Utah State University, Logan, Utah 84322, USA
| |
Collapse
|
17
|
Zhao W, Gao Y, Zhang S, Liu Z, He L, Zhang D, Li W, Meng Q. Extracorporeal shock wave therapy for bone marrow edema syndrome in patients with osteonecrosis of the femoral head: a retrospective cohort study. J Orthop Surg Res 2021; 16:21. [PMID: 33413520 PMCID: PMC7791851 DOI: 10.1186/s13018-020-02159-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 12/14/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND There is now ample evidence suggesting that extracorporeal shock wave therapy (ESWT) can improve hip mobility and reduce pain in patients with osteonecrosis of the femoral head (ONFH). The ability of ESWT to cure bone marrow edema syndrome (BMES) in patients with ONFH, 12 weeks after the initial course of ESWT, needs to be verified further and more relevant clinical research-based evidence should be consolidated. This study aimed to evaluate the efficacy of ESWT for BMES caused by ONFH. METHODS This retrospective cohort study included 67 patients with BMES caused by ONFH who were participating in a rehabilitation program as outpatients. Before and after ESWT, the area of femoral bone marrow edema was evaluated by magnetic resonance imaging (MRI), and the Harris score and Charnley score were evaluated as hip pain and function indicators. RESULTS After ESWT, MRI revealed that the area of bone marrow edema decreased from 984.6 ± 433.2 mm2 to 189.7 ± 214.4 mm2 (P < 0.0001). The Harris score increased from 42.2 ± 9.1 to 77.7 ± 10.8 points (P < 0.0001). The Charnley score increased from 7.3 ± 1.4 to 12.0 ± 1.7 (P < 0.0001). ESWT was effective in treating BMES in 98.5% of the cases. CONCLUSIONS This study demonstrated that ESWT can effectively treat BMES caused by ONFH and can aid in pain relief and functional recovery in patients with ONFH. Thus, ESWT should be included in the classic physical therapy regimen for patients with ONFH and BMES.
Collapse
Affiliation(s)
- Wenyi Zhao
- Harbin Medical University, Harbin, China.,Bone and Joint Surgery Department, First Hospital of Suihua City, Suihua, China
| | - Yuan Gao
- Bone and Joint Surgery Department, Pinghu Hospital Affiliated to Shenzhen University, Shenzhen, China
| | - Shouxiang Zhang
- Bone and Joint Surgery Department, Harbin City Hospital No. 1 Affiliated to Harbin Technical University, Harbin, China
| | - Zhang Liu
- Bone and Joint Surgery Department, First Hospital of Suihua City, Suihua, China
| | - Lin He
- Bone and Joint Surgery Department, First Hospital of Suihua City, Suihua, China
| | - Dahong Zhang
- Bone and Joint Surgery Department, First Hospital of Suihua City, Suihua, China
| | - Wei Li
- Bone and Joint Surgery Department, Harbin City Hospital No. 1 Affiliated to Harbin Technical University, Harbin, China.
| | | |
Collapse
|
18
|
He H, Gray J, Cangelosi A, Meng Q, McGinnity T, Mehnen J. The Challenges and Opportunities of Human-Centred AI for Trustworthy Robots and Autonomous Systems. IEEE Trans Cogn Dev Syst 2021. [DOI: 10.1109/tcds.2021.3132282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
19
|
Yang J, Man J, Xi M, Gao X, Lu W, Meng Q. Precise Measurement of Position and Attitude Based on Convolutional Neural Network and Visual Correspondence Relationship. IEEE Trans Neural Netw Learn Syst 2020; 31:2030-2041. [PMID: 31449032 DOI: 10.1109/tnnls.2019.2927719] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Accurate measurement of position and attitude information is particularly important. Traditional measurement methods generally require high-precision measurement equipment for analysis, leading to high costs and limited applicability. Vision-based measurement schemes need to solve complex visual relationships. With the extensive development of neural networks in related fields, it has become possible to apply them to the object position and attitude. In this paper, we propose an object pose measurement scheme based on convolutional neural network and we have successfully implemented end-to-end position and attitude detection. Furthermore, to effectively expand the measurement range and reduce the number of training samples, we demonstrated the independence of objects in each dimension and proposed subadded training programs. At the same time, we generated generating image encoder to guarantee the detection performance of the training model in practical applications.
Collapse
|
20
|
Yin Z, Jin H, Huang S, Qu G, Meng Q. REG γ knockdown suppresses proliferation by inducing apoptosis and cell cycle arrest in osteosarcoma. PeerJ 2020; 8:e8954. [PMID: 32328351 PMCID: PMC7166046 DOI: 10.7717/peerj.8954] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/21/2020] [Indexed: 11/20/2022] Open
Abstract
Background Osteosarcoma (OS) is the most common malignant bone tumor with high mortality in children and adolescents. REG γ is overexpressed and plays oncogenic roles in various types of human cancers. However, the expression and potential roles of REG γ in osteosarcoma are elusive. This study aims at exploring possible biological functions of REG γ in the pathogenesis of osteosarcoma and its underlying mechanism. Methods Quantitativereverse transcription-polymerase chain reaction (qRT-PCR), western blotting andimmunohistochemistry (IHC)were performed to detect the expression levels of REG γ in OS tissues and cell lines. Then, the effects of REG γ expression on OS cell proliferation in vitro were analyzed by Cell Counting Kit-8 (CCK-8), ethylene deoxyuridine (EdU), colony formation, flow cytometry. The protein levels of apoptosis and cell-cycle related proteins were evaluated using western blotting. Results In present study, we found for the first time that REG γ is overexpressed in osteosarcoma tissues and cell lines and knockdown of REG γ significantly inhibits cell proliferation and induces apoptosis and cell cycle arrest in osteosarcoma cells. Furthermore, we observed that p21, caspase-3 and cleaved caspase-3 are increased while the expression of cycinD1 and bcl-2 are decreased after REG γ depletion in osteosarcoma cells. In conclusion, REG γ may be involved in the proliferation of osteosarcoma and serve as a novel therapeutic target in patients with osteosarcoma.
Collapse
Affiliation(s)
- Zhiqiang Yin
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hao Jin
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Shibo Huang
- Department of General Surgery, Heilongjiang Agricultural Reclamation General Hospital, Harbin, China
| | - Guofan Qu
- The Affiliated Tumor Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilong, China
| | - Qinggang Meng
- Department of Medical Science Institute of Harbin, The Fourth Affiliated Hospital of Harbin Medical University, Harbin Medical University, Harbin, Heilong, China
| |
Collapse
|
21
|
Zhang Q, Rong G, Meng Q, Yu M, Xie Q, Fang J. Outlining the keyword co-occurrence trends in Shuanghuanglian injection research: A bibliometric study using CiteSpace III. Journal of Traditional Chinese Medical Sciences 2020. [PMCID: PMC7272175 DOI: 10.1016/j.jtcms.2020.05.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Objective Methods Results Conclusion
Collapse
|
22
|
Yin Z, Peng Z, Wang Z, Meng Q. The oncogenic role of REG γ is exerted by activating the Wnt/β-catenin signaling pathway in osteosarcoma. Am J Transl Res 2020; 12:563-573. [PMID: 32194904 PMCID: PMC7061849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 02/02/2020] [Indexed: 06/10/2023]
Abstract
BACKGROUND Proteasome activator γ (REG γ) expression was found to be upregulated and to play critical roles in several cancers. However, the effect of REG γ on osteosarcoma (OS) remains unclear. The objective of the present study was to explore the clinical significance of REG γ and its function in regulating the progression of OS. METHODS Quantitative reverse transcription-polymerase chain reaction (qRT-PCR), western blotting (WB) and immunohistochemistry (IHC) analyses were performed to detect the expression levels of REG γ in OS tissues and cell lines. Then, the effects of REG γ expression on OS cell behavior in vitro were analyzed by Cell Counting Kit-8 (CCK-8), ethylene deoxyuridine (EdU), colony formation, flow cytometry, wound healing and transwell assays. The protein and mRNA levels of components involved in the Wnt/β-catenin pathway were evaluated using WB and qRT-PCR, respectively. RESULTS We found that REG γ expression was significantly upregulated in both OS tissues and cell lines. Our in vitro assay results confirmed that knockdown of REG γ inhibited cell proliferation, migration, and invasion and induced apoptosis and cell cycle arrest in OS. Additionally, through WB and qRT-PCR analyses, we found that REG γ depletion markedly decreased the β-catenin, cyclin D1 and c-myc expression levels and increased the GSK-3β expression levels in OS cell lines. CONCLUSIONS Our results revealed that REG γ plays an oncogenic role in OS by activating the Wnt/β-catenin pathway, indicating that REG γ may be a promising therapeutic target for OS patients.
Collapse
Affiliation(s)
- Zhiqiang Yin
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical UniversityHarbin, Heilongjiang Province, China
- The Key Laboratory of Myocardial Ischemia, Chinese Ministry of EducationHarbin, Heilongjiang Province, China
| | - Zhibin Peng
- Department of Orthopedics, The First Affiliated Hospital of Harbin Medical UniversityHarbin, Heilongjiang Province, China
| | - Zhichao Wang
- Department of Orthopedics, The Fifth Hospital of Harbin CityHarbin, Heilongjiang Province, China
| | - Qinggang Meng
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical UniversityHarbin, Heilongjiang Province, China
- Department of Medical Science Institute of HarbinHarbin, Heilongjiang Province, China
| |
Collapse
|
23
|
Jiang B, Yang J, Meng Q, Li B, Lu W. A Deep Evaluator for Image Retargeting Quality by Geometrical and Contextual Interaction. IEEE Trans Cybern 2020; 50:87-99. [PMID: 30183651 DOI: 10.1109/tcyb.2018.2864158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
An image is compressed or stretched during the multidevice displaying, which will have a very big impact on perception quality. In order to solve this problem, a variety of image retargeting methods have been proposed for the retargeting process. However, how to evaluate the results of different image retargeting is a very critical issue. In various application systems, the subjective evaluation method cannot be applied on a large scale. So we put this problem in the accurate objective-quality evaluation. Currently, most of the image retargeting quality assessment algorithms use simple regression methods as the last step to obtain the evaluation result, which are not corresponding with the perception simulation in the human vision system (HVS). In this paper, a deep quality evaluator for image retargeting based on the segmented stacked AutoEnCoder (SAE) is proposed. Through the help of regularization, the designed deep learning framework can solve the overfitting problem. The main contributions in this framework are to simulate the perception of retargeted images in HVS. Especially, it trains two separated SAE models based on geometrical shape and content matching. Then, the weighting schemes can be used to combine the obtained scores from two models. Experimental results in three well-known databases show that our method can achieve better performance than traditional methods in evaluating different image retargeting results.
Collapse
|
24
|
Wang X, Li W, Bi J, Wang J, Ni L, Shi Q, Meng Q. Association of high PDPN expression with pulmonary metastasis of osteosarcoma and patient prognosis. Oncol Lett 2019; 18:6323-6330. [PMID: 31807157 PMCID: PMC6876324 DOI: 10.3892/ol.2019.11053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2018] [Accepted: 05/31/2019] [Indexed: 12/26/2022] Open
Abstract
Podoplanin (PDPN) is an important positive regulator of platelet aggregation and functions as a lymphatic endothelial marker. PDPN has been observed to be expressed in human tumor tissues and various cancer cell lines. In the present study, PDPN expression in patients with primary osteosarcoma was assessed at the mRNA and protein levels, and the associations between PDPN expression and pulmonary metastasis (PM) and prognosis were examined. Reverse transcription-quantitative PCR (RT-qPCR) analysis was used to detect the expression levels of PDPN in primary osteosarcoma tissues and paired normal bone tissues (n=20 pairs). In addition, immunohistochemical analysis of PDPN expression was performed in 168 paraffin-embedded osteosarcoma tissue specimens and 23 matched normal tissues. The RT-qPCR results revealed higher mRNA expression levels of PDPN in patients with PM compared with patients without PM. Further survival analyses identified Enneking stage and PM as two independent prognostic indicators. Finally, univariate analysis revealed that high PDPN protein expression was significantly associated with Enneking stage and PM in patients with osteosarcoma.
Collapse
Affiliation(s)
- Xincheng Wang
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China.,Department of Orthopedics, The First Hospital of Harbin City, Harbin, Heilongjiang 150010, P.R. China
| | - Wei Li
- Department of Orthopedics, The First Hospital of Harbin City, Harbin, Heilongjiang 150010, P.R. China
| | - Jiaqi Bi
- Department of Orthopedics, The First Hospital of Harbin City, Harbin, Heilongjiang 150010, P.R. China
| | - Jia Wang
- Department of Hepatobiliary Surgery, The Affiliated Cancer Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Linying Ni
- Department of Orthopedics, The Affiliated Cancer Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Qingtao Shi
- Department of Pathology, The Affiliated Cancer Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Qinggang Meng
- Department of Orthopedics, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China.,Department of Orthopedics, The First Hospital of Harbin City, Harbin, Heilongjiang 150010, P.R. China
| |
Collapse
|
25
|
Affiliation(s)
- Shuangli Zhang
- Department of Orthpedics, The First Hospital of Harbin, Harbin, Heilongjiang Province, China
| | - Jun Zhao
- Department of Neurosurgery, The First Hospital of Qiqihar, Qiqihar, Heilongjiang Province, China
| | - Qinggang Meng
- Department of Orthpedics, The First Hospital of Harbin, Harbin, Heilongjiang Province, China
| |
Collapse
|
26
|
Wu H, Fan Z, Brandsrud M, Meng Q, Bobbitt M, Regouski M, Stott R, Sweat A, Crabtree J, Hogan RJ, Tripp RA, Wang Z, Polejaeva IA, Sullivan EJ. Generation of H7N9-specific human polyclonal antibodies from a transchromosomic goat (caprine) system. Sci Rep 2019; 9:366. [PMID: 30675003 PMCID: PMC6344498 DOI: 10.1038/s41598-018-36961-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 11/23/2018] [Indexed: 01/23/2023] Open
Abstract
To address the unmet needs for human polyclonal antibodies both as therapeutics and diagnostic reagents, building upon our previously established transchromosomic (Tc) cattle platform, we report herein the development of a Tc goat system expressing human polyclonal antibodies in their sera. In the Tc goat system, a human artificial chromosome (HAC) comprising the entire human immunoglobulin (Ig) gene repertoire in the germline configuration was introduced into the genetic makeup of the domestic goat. We achieved this by transferring the HAC into goat fetal fibroblast cells followed by somatic cell nuclear transfer for Tc goat production. Gene and protein expression analyses in the peripheral blood mononuclear cells (PBMC) and the sera, respectively, of Tc caprine demonstrated the successful expression of human Ig genes and antibodies. Furthermore, immunization of Tc caprine with inactivated influenza A (H7N9) viruses followed by H7N9 Hemagglutinin 1 (HA1) boosting elicited human antibodies with high neutralizing activities against H7N9 viruses in vitro. As a small ungulate, Tc caprine offers the advantages of low cost and quick establishment of herds, therefore complementing the Tc cattle platform in responses to a range of medical needs and diagnostic applications where small volumes of human antibody products are needed.
Collapse
Affiliation(s)
- Hua Wu
- SAB Biotherapeutics, Sioux Falls, SD, 57104, USA.,SAB Capra, LLC, Salt Lake City, UT, 84101, USA
| | - Zhiqiang Fan
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | | | - Qinggang Meng
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | | | - Misha Regouski
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Rusty Stott
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Alexis Sweat
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA
| | - Jackelyn Crabtree
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Robert J Hogan
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Ralph A Tripp
- Department of Infectious Diseases, College of Veterinary Medicine, University of Georgia, Athens, GA, 30602, USA
| | - Zhongde Wang
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA.
| | - Irina A Polejaeva
- Department of Animal, Dairy, and Veterinary Sciences, Utah State University, Logan, UT, 84322, USA.
| | - Eddie J Sullivan
- SAB Biotherapeutics, Sioux Falls, SD, 57104, USA. .,SAB Capra, LLC, Salt Lake City, UT, 84101, USA.
| |
Collapse
|
27
|
Yang J, Sim K, Gao X, Lu W, Meng Q, Li B. A Blind Stereoscopic Image Quality Evaluator with Segmented Stacked Autoencoders Considering The Whole Visual Perception Route. IEEE Trans Image Process 2018; 28:1314-1328. [PMID: 30371364 DOI: 10.1109/tip.2018.2878283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Most of the current blind stereoscopic image quality assessment (SIQA) algorithms cannot show reliable accuracy. One reason is that they do not have the deep architectures and the other reason is that they are designed on the relatively weak biological basis, compared with findings on human visual system (HVS). In this paper, we propose a Deep Edge and COlor Signal INtegrity Evaluator (DECOSINE) based on the whole visual perception route from eyes to the frontal lobe, and especially focus on edge and color signal processing in retinal ganglion cells (RGC) and lateral geniculate nucleus (LGN). Furthermore, to model the complex and deep structure of the visual cortex, Segmented Stacked Auto-encoder (S-SAE) is used, which has not utilized for SIQA before. The utilization of the S-SAE complements weakness of deep learning-based SIQA metrics that require a very long training time. Experiments are conducted on popular SIQA databases, and the superiority of DECOSINE in terms of prediction accuracy and monotonicity is proved. The experimental results show that our model about the whole visual perception route and utilization of S-SAE are effective for SIQA.
Collapse
|
28
|
Fan Z, Perisse IV, Cotton CU, Regouski M, Meng Q, Domb C, Van Wettere AJ, Wang Z, Harris A, White KL, Polejaeva IA. A sheep model of cystic fibrosis generated by CRISPR/Cas9 disruption of the CFTR gene. JCI Insight 2018; 3:123529. [PMID: 30282831 DOI: 10.1172/jci.insight.123529] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 08/17/2018] [Indexed: 12/31/2022] Open
Abstract
Cystic fibrosis (CF) is a genetic disease caused by mutations in the CF transmembrane conductance regulator (CFTR) gene. The major cause of limited life span in CF patients is progressive lung disease. CF models have been generated in 4 species (mice, rats, ferrets, and pigs) to enhance our understanding of the CF pathogenesis. Sheep may be a particularly relevant animal to model CF in humans due to the similarities in lung anatomy and development in the two species. Here, we describe the generation of a sheep model for CF using CRISPR/Cas9 genome editing and somatic cell nuclear transfer (SCNT) techniques. We generated cells with CFTR gene disruption and used them for production of CFTR-/- and CFTR+/- lambs. The newborn CFTR-/- sheep developed severe disease consistent with CF pathology in humans. Of particular relevance were pancreatic fibrosis, intestinal obstruction, and absence of the vas deferens. Also, substantial liver and gallbladder disease may reflect CF liver disease that is evident in humans. The phenotype of CFTR-/- sheep suggests this large animal model will be a useful resource to advance the development of new CF therapeutics. Moreover, the generation of specific human CF disease-associated mutations in sheep may advance personalized medicine for this common genetic disorder.
Collapse
Affiliation(s)
- Zhiqiang Fan
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Iuri Viotti Perisse
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | | | - Misha Regouski
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Chaim Domb
- Departments of Pediatrics, Physiology and Biophysics, and
| | - Arnaud J Van Wettere
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Zhongde Wang
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Ann Harris
- Department of Genetics and Genome Sciences, Case Western Reserve University School of Medicine, Cleveland, Ohio, USA
| | - Kenneth L White
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| | - Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, Utah, USA
| |
Collapse
|
29
|
Turner J, Meng Q, Schaefer G, Whitbrook A, Soltoggio A. Distributed Task Rescheduling With Time Constraints for the Optimization of Total Task Allocations in a Multirobot System. IEEE Trans Cybern 2018; 48:2583-2597. [PMID: 28976326 DOI: 10.1109/tcyb.2017.2743164] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This paper considers the problem of maximizing the number of task allocations in a distributed multirobot system under strict time constraints, where other optimization objectives need also be considered. It builds upon existing distributed task allocation algorithms, extending them with a novel method for maximizing the number of task assignments. The fundamental idea is that a task assignment to a robot has a high cost if its reassignment to another robot creates a feasible time slot for unallocated tasks. Multiple reassignments among networked robots may be required to create a feasible time slot and an upper limit to this number of reassignments can be adjusted according to performance requirements. A simulated rescue scenario with task deadlines and fuel limits is used to demonstrate the performance of the proposed method compared with existing methods, the consensus-based bundle algorithm and the performance impact (PI) algorithm. Starting from existing (PI-generated) solutions, results show up to a 20% increase in task allocations using the proposed method.
Collapse
|
30
|
Zhang SL, Li BL, Li W, Lu M, Ni LY, Ma HL, Meng QG. The Effects of Ludartin on Cell Proliferation, Cell Migration, Cell Cycle Arrest and Apoptosis Are Associated with Upregulation of p21WAF1 in Saos-2 Osteosarcoma Cells In Vitro. Med Sci Monit 2018; 24:4926-4933. [PMID: 30008466 PMCID: PMC6067020 DOI: 10.12659/msm.909193] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2018] [Accepted: 02/15/2018] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND The aim of this study was investigate the effects of the sesquiterpene lactone, ludartin, on cell proliferation, cell migration, apoptosis, and the cell cycle in osteosarcoma cell lines, compared with a normal osteoblast cell line. MATERIAL AND METHODS Osteosarcoma cell lines, MG-63 Saos-2 U-2OS, T1-73 143B, and HOS, and normal hFOB 1.19 osteoblasts, were cultured and treated with increasing doses of ludartin, The MTT colorimetric assay was used to measure cell metabolic activity and viability. Apoptosis was studied by fluorescence-activated cell sorting (FACS) using 4',6-diamidino-2-phenylindole (DAPI) nuclear staining and Annexin-V/propidium iodide (PI) staining. Cell cycle was studied using flow cytometry. Cell migration and invasion were studied using wound healing and Boyden chamber assays. Protein expression was measured by Western blotting. RESULTS Ludartin inhibited cell viability, cell migration, cell proliferation, and increased cell apoptosis, in all osteosarcoma cell lines, with an IC50 dose ranging from 15-30 µM. The greatest effects were on the Saso-2 osteosarcoma cells, with an IC50 of 15 µM. However, ludartin showed minor cytotoxic effects of the normal hFOB 1.19 osteoblasts (IC50 >100 µM). Ludartin exerted its anti-proliferative effects on Saos-2 cells via induction of apoptosis and cell cycle arrest at the G2/M checkpoint, associated with reduced expression of Cdc25c (Ser216), Cdc25c, pCdc2 (Tyr15), and Cdc2 and increased expression of p21WAF1. Ludartin inhibited cell migration and invasion of the Saos-2 cells. CONCLUSIONS The dose-dependent effects of ludartin on cell proliferation, migration, apoptosis, cell cycle arrest at the G2/M checkpoint involved p21WAFI in Saos-2 osteosarcoma cells.
Collapse
Affiliation(s)
- Shuang-li Zhang
- Harbin Medical University, Harbin, Heilongjiang, P.R. China
- Department of Oncological Surgery, The First Hospital of Qiqihaer City, Qiqihaer, Heilongjiang, P.R. China
| | - Bao-lin Li
- Department of Orthopedics, The First Hospital of Harbin, Harbin, Heilongjiang, P.R. China
| | - Wei Li
- Department of Orthopedics, The First Hospital of Harbin, Harbin, Heilongjiang, P.R. China
| | - Ming Lu
- Department of Surgical Oncology, The First Hospital of Qiqihaer City, Qiqihaer, Heilongjiang, P.R. China
| | - Lin-ying Ni
- Department of Orthopedics, Harbin Medical University, Cancer Hospital, Harbin, Heilongjiang, P.R. China
| | - Hui-li Ma
- Department of Orthopedics, Binzhou Medical University Hospital, Binzhou, Shandong, P.R. China
| | - Qing-gang Meng
- Harbin Medical University, Harbin, Heilongjiang, P.R. China
- Department of Orthopedics, The First Hospital of Harbin, Harbin, Heilongjiang, P.R. China
| |
Collapse
|
31
|
Zhang S, Li B, Tang W, Ni L, Ma H, Lu M, Meng Q. Effects of connective tissue growth factor on prostate cancer bone metastasis and osteoblast differentiation. Oncol Lett 2018; 16:2305-2311. [PMID: 30008933 PMCID: PMC6036428 DOI: 10.3892/ol.2018.8960] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2016] [Accepted: 09/22/2017] [Indexed: 12/11/2022] Open
Abstract
Previous studies have demonstrated that connective tissue growth factor (CTGF) is expressed at increased levels in prostate cancer bone metastasis mouse models and patients with prostate cancer which metastasizes to the bone; however, the underlying molecular mechanism(s) remain unknown. The present study investigated the function of CTGF in osteoblast differentiation and its effect on prostate cancer bone metastasis by analyzing CTGF gene expression and transcription at different levels of invasion, metastasis of prostate cancer cells, and the influence of CTGF on proliferation and xenotransplantation. A mouse model demonstrating bone metastasis was used to investigate the function(s) of CTGF in bone metastasis and osteoblast differentiation. Results demonstrated that CTGF expression was increased in association with high bone metastasis in prostate cancer cells, and its expression was significantly decreased in whole cell lysates. CTGF expression in prostate cancer cells with high levels of bone metastasis was increased 1.9-fold compared with prostate cancer cells with low levels of bone metastasis. The expression of CTGF in mesenchymal cells was markedly increased compared with epithelial cells. Results indicated that the increased expression of CTGF does not affect the proliferation of tumor cells and possesses no influence on tumor volume. Control and CTGF plasmids were transfected into RM1 cells and led to 4 and 17% bone lesions, respectively. Increased expression of CTGF significantly enlarged the tumor area in the bone metastatic position compared with the control. Positive areas of alkaline phosphatase were significantly decreased as the concentration of CTGF increased. The results of the present study demonstrated that CTGF promotes prostate carcinoma to metastasize in the bone by dysregulating osteoblast differentiation.
Collapse
Affiliation(s)
- Shuangli Zhang
- Department of Orthopaedic Surgery, The Fourth Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
| | - Baolin Li
- Department of Orthopaedic Surgery, Harbin The First Hospital, Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| | - Wei Tang
- Department of Orthopaedic Surgery, The Second People's Hospital of Rizhao, Rizhao, Shandong 276807, P.R. China
| | - Linying Ni
- Department of Orthopaedic Surgery, Harbin Medical University Cancer Hospital, Harbin, Heilongjiang 150081, P.R. China
| | - Huili Ma
- Department of Orthopaedic Surgery, Binzhou Medical University Hospital, Binzhou, Shandong 256603, P.R. China
| | - Ming Lu
- Department of Oncological Surgery, The First Hospital of Qiqihaer City, Qiqihaer, Heilongjiang 161005, P.R. China
| | - Qinggang Meng
- Department of Orthopaedic Surgery, Harbin The First Hospital, Harbin Medical University, Harbin, Heilongjiang 150010, P.R. China
| |
Collapse
|
32
|
Zhou G, Wei H, Wang X, Yang M, Bunch TD, Polejaeva IA, White KL, Wang Z, Meng Q. Serial Culture Is Critical for In Vitro Development of Parthenogenetic Embryos in the Golden Syrian Hamster. Cell Reprogram 2018; 20:187-195. [PMID: 29688743 DOI: 10.1089/cell.2017.0070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
Unlike oocytes of many other mammalian species, parthenogenetically activated hamster oocytes have not been reported to develop beyond the two-cell stage. This study investigated the in vitro development into blastocysts of parthenogenetic embryos of Golden Syrian hamsters. We observed that hamster oocytes could easily be artificially activated (AA) by treatment with ionomycin plus 6-dimethylaminopurine + cycloheximide + cytochalasin B as assessed by embryo cleavage in HECM-9 (63.15%) or HECM-10 (63.82%). None of the cleaved embryos developed beyond the two-cell stage when cultured in either of the two media. However, some of the embryos overcame the two-cell block and developed to the blastocyst stage (26.45%) when they were first cultured in HECM-10 for 24 hours and then in HECM-9 (serial culture media HECM-10-9) for 72 hours. Blastocyst development was further significantly (66.2%) improved when embryos were cultured in HECM-10 supplemented with ethylenediaminetetraacetic acid for 24 hours, then in HECM-9 supplemented with glucose for 72 hours (serial culture media HECM-11a-b). Hamster oocytes activated with ionomycin, ethanol, or a combination of the two treatments would develop to the blastocyst stage in serial culture media HECM-11a-b, whereas none of the spontaneously activated oocytes cleaved (0% vs. 86.93%, p < 0.05). DNA and microtubule configurations of spontaneously activated and AA oocytes were assessed by immunocytochemical staining and fluorescence microscopy. The results indicate that serial culture and the method of activation are critical for overcoming the in vitro developmental block of hamster parthenogenetic embryos. This study is the first to report blastocyst development from parthenogenetically activated hamster oocytes.
Collapse
Affiliation(s)
- Guangbin Zhou
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah.,2 Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University , Chengdu, P.R. China
| | - Hengxi Wei
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah.,3 College of Animal Science, South China Agricultural University , Guangzhou, P.R. China
| | - Xinrong Wang
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah.,4 College of Animal Science and Technology, Gansu Agricultural University , Lanzhou, P.R. China
| | - Min Yang
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| | - Thomas D Bunch
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| | - Irina A Polejaeva
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| | - Kenneth L White
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| | - Zhongde Wang
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| | - Qinggang Meng
- 1 Department of Animal, Dairy, and Veterinary Sciences, Utah State University , Logan, Utah
| |
Collapse
|
33
|
|
34
|
Chen C, Zhou S, Meng Q. A molecular docking study of Rhizoma Atractylodis and Rhizoma Atractylodis Macrocephalae herbal pair with respect to type 2 diabetes mellitus. Journal of Traditional Chinese Medical Sciences 2018. [DOI: 10.1016/j.jtcms.2018.05.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
35
|
Zhu X, Li Y, Meng Q. Islet-1 promotes the proliferation and invasion, and inhibits the apoptosis of A375 human melanoma cells. Int J Mol Med 2018; 41:3680-3690. [PMID: 29568936 DOI: 10.3892/ijmm.2018.3569] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 03/12/2018] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to examine the effects of the insulin gene enhancer-binding protein, islet-1 (ISL1), on the proliferation, invasion and apoptosis of the human melanoma cell line, A375. An ISL1 overexpression lentiviral vector was constructed and transfected into the A375 cells. The proliferation of the A375 cells transfected with the ISL1 vector (termed A375/ISL1 cells) was examined by MTT assay, flow cytometry and TUNEL assay, and cell invasion was examined by Transwell assay. The expression levels of matrix metalloproteinase (MMP)-2 and MMP-9 were measured by qPCR and western blot analysis; the expression levels of Akt and p-Akt were measured in the cells treated with vascular endothelial growth factor (VEGF) and the PI3K/Akt inhibitor, LY294002, by western blot analysis. The optical density value of the A375/ISL1 cells was increased after 12 h of culture (P<0.001), as shown by MTT assay. The ratio of apoptotic A375/ISL1 cells was significantly decreased (P<0.001), as shown by flow cytometry and TUNEL assay. In addition, the average penetration rate of the A375/ISL1 cells significantly increased (P<0.001), as shown by Transwell assay. The expression levels of MMP-2 and MMP-9 were significantly increased in the A375/ISL1 cells, as shown by qPCR and western blot analysis (P<0.001). Moreover, treatment of the A375/ISL1 cells with VEGF for 48 h increased the expression of Akt and p-Akt compared with the control cells transfected with A375/green fluorescent protein (GFP) (P<0.05; P<0.001, respectively). In addition, in the A375/ISL1 cells treated with the LY294002 inhibitor for 24 and 48 h, the level of Akt was also found to increase compared to the control A375/GFP cells (P<0.05). On the whole, the findings of this study indicate that the overexpression of ISL1 promotes the proliferation and invasion, and inhibits the apoptosis of A375 melanoma cells. ISL1 thus plays an important role in A375 cell survival, and these effects are possibly mediate via the PI3K/Akt signaling pathway.
Collapse
Affiliation(s)
- Xiaoling Zhu
- Department of Dermatology, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| | - Yuzhen Li
- Department of Dermatology, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150081, P.R. China
| | - Qinggang Meng
- Department of Orthopaedic Surgery, The First Hospital of Harbin, Harbin, Heilongjiang 150010, P.R. China
| |
Collapse
|
36
|
Yang J, Jiang B, Wang Y, Lu W, Meng Q. Sparse representation based stereoscopic image quality assessment accounting for perceptual cognitive process. Inf Sci (N Y) 2018. [DOI: 10.1016/j.ins.2017.10.053] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
37
|
Zhu X, Li W, Meng Q. LncRNA H19 promotes proliferation and invasion in A375 human melanoma cell line. Int J Clin Exp Pathol 2018; 11:1063-1073. [PMID: 31938202 PMCID: PMC6958159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 01/16/2018] [Indexed: 06/10/2023]
Abstract
OBJECTIVE To determine the effects of H19 gene on the proliferation and invasion of A375 human melanoma cells. METHODS A375 cells were infected with a lentiviral vector overexpressing H19 or transfected with H19 RNA interference constructs. The proliferation and invasion of A375/H19+ cells were measured by MTT cell viability and transwell assays, respectively. The mRNA and protein expression levels of matrix metalloproteinase 2 (MMP2) and MMP9 were measured by quantitative PCR (qPCR) and Western blotting, respectively, and the protein expression of Akt, phosphorylated Akt (p-Akt), Slug and E-cadherin were examined by Western blot analysis. RESULTS The optical density value of A375/H19+ cells increased after incubation with MTT reagent for 12 h (P < 0.05), and the transwell assay showed that the average penetration rate of A375/H19+ cells significantly increased (P < 0.001). The expression levels of MMP2 and MMP9 were significantly increased in A375/H19+ cells, as determined by qPCR and Western blotting (P < 0.001). Moreover, A375/H19+ cells had upregulated levels of Slug and p-Akt and downregulated E-cadherin (P < 0.001). The weight and volume of A375/H19+ cell xenografts in nude mice were significantly increased, but its inhibition rate was smaller (P < 0.05 and P < 0.001, respectively). CONCLUSIONS The results of this study showed that H19 overexpression promoted the proliferation, invasion, and growth of A375 cells. In addition, it upregulated the mRNA and protein expression levels of MMP2 and MMP9, which in turn promoted cell invasion. Furthermore, H19 appeared to enhance Akt phosphorylation, directly suppress E-cadherin, and upregulate Slug expression to promote A375 cell invasion.
Collapse
Affiliation(s)
- Xiaoling Zhu
- Department of Dermatology, The First Hospital of HarbinHarbin, Heilongjiang, China
| | - Wei Li
- Department of Orthopaedic Surgery, The First Hospital of HarbinHarbin, Heilongjiang, China
| | - Qinggang Meng
- Department of Orthopaedic Surgery, The First Hospital of HarbinHarbin, Heilongjiang, China
| |
Collapse
|
38
|
Gao J, Huang J, Huang Z, Meng Q, Zheng L, Sun Q, Li G. Catalytic growth of highly crystalline polyaniline by copper under ambient conditions. CrystEngComm 2018. [DOI: 10.1039/c8ce00893k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An ambient condition copper wire catalyzed method for the synthesis of crystalline polyaniline has been developed here.
Collapse
Affiliation(s)
- Junning Gao
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Engineering Research Center on Solid-State Lighting and Its Informationisation of Guangdong Province
| | - Jinbo Huang
- Department of Electronic Materials
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Zhaoming Huang
- Department of Electronic Materials
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Qinggang Meng
- Department of Electronic Materials
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Lijun Zheng
- Department of Electronic Materials
- School of Materials Science and Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Qian Sun
- Key Laboratory of Nanodevices and Applications
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
- Suzhou 215123
- China
| | - Guoqiang Li
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Engineering Research Center on Solid-State Lighting and Its Informationisation of Guangdong Province
| |
Collapse
|
39
|
Shi B, Thomas AJ, Benninghoff AD, Sessions BR, Meng Q, Parasar P, Rutigliano HM, White KL, Davies CJ. Genetic and epigenetic regulation of major histocompatibility complex class I gene expression in bovine trophoblast cells. Am J Reprod Immunol 2017; 79. [PMID: 29131441 PMCID: PMC5728445 DOI: 10.1111/aji.12779] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 10/10/2017] [Indexed: 11/28/2022] Open
Abstract
Problem The regulatory mechanisms governing differential expression of classical major histocompatibility complex (MHC) class I (MHC‐Ia) and non‐classical MHC class I (MHC‐Ib) genes are poorly understood. Method of study Quantitative reverse transcription‐ polymerase chain reaction (PCR) was used to compare the abundance of MHC‐I transcripts and related transcription factors in peripheral blood mononuclear cells (PBMC) and placental trophoblast cells (PTC). Methylation of MHC‐I CpG islands was detected by bisulfite treatment and next‐generation sequencing. Demethylation of PBMC and PTC with 5′‐aza‐deoxycytidine was used to assess the role of methylation in gene regulation. Results MHC‐I expression was higher in PBMC than PTC and was correlated with expression of IRF1, class II MHC transactivator (CIITA), and STAT1. The MHC‐Ia genes and BoLA‐NC1 were devoid of CpG methylation in PBMC and PTC. In contrast, CpG sites in the gene body of BoLA‐NC2, ‐NC3, and ‐NC4 were highly methylated in PBMC but largely unmethylated in normal PTC and moderately methylated in somatic cell nuclear transfer PTC. In PBMC, demethylation resulted in upregulation of MHC‐Ib by 2.8‐ to 6‐fold, whereas MHC‐Ia transcripts were elevated less than 2‐fold. Conclusion DNA methylation regulates bovine MHC‐Ib expression and is likely responsible for the different relative levels of MHC‐Ib to MHC‐Ia transcripts in PBMC and PTC.
Collapse
Affiliation(s)
- Bi Shi
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Aaron J Thomas
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Abby D Benninghoff
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,School of Veterinary Medicine, Utah State University, Logan, UT, USA
| | - Benjamin R Sessions
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Parveen Parasar
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA
| | - Heloisa M Rutigliano
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,School of Veterinary Medicine, Utah State University, Logan, UT, USA
| | - Kenneth L White
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA.,School of Veterinary Medicine, Utah State University, Logan, UT, USA
| | - Christopher J Davies
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA.,Center for Integrated BioSystems, Utah State University, Logan, UT, USA.,School of Veterinary Medicine, Utah State University, Logan, UT, USA
| |
Collapse
|
40
|
Li B, Bi J, Li W, Huang S, Zhang S, Zhao J, Meng Q, Fei J. Effects of pulsed electromagnetic fields on histomorphometry and osteocalcin in disuse osteoporosis rats. Technol Health Care 2017; 25:13-20. [PMID: 28582887 DOI: 10.3233/thc-171301] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Baolin Li
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Jiaqi Bi
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Wei Li
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Sainan Huang
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Shuangli Zhang
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Jian’gang Zhao
- Department of Surgery, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Qinggang Meng
- Department of Orthopaedic Surgery, Harbin Medical University, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| | - Jianfeng Fei
- Department of Surgery, The First Hospital of Harbin City, Harbin, Heilongjiang, China
| |
Collapse
|
41
|
Liu J, Meng Q, Jing H, Zhou S. Astragaloside IV protects against apoptosis in human degenerative chondrocytes through autophagy activation. Mol Med Rep 2017; 16:3269-3275. [PMID: 28714008 PMCID: PMC5548053 DOI: 10.3892/mmr.2017.6980] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 05/09/2017] [Indexed: 01/09/2023] Open
Abstract
Increased cell apoptosis in chondrocytes is a feature of degenerative cartilage. Astragaloside IV (AST) has been proven to possess an antiarthritic effect by preventing interleukin (IL)‑1β‑induced cartilage damage. However, the role of AST on chondrocyte apoptosis and its underlying mechanism remains unknown. In the present study, degenerative chondrocytes isolated from patients with osteoarthritis (OA) were subjected to AST and IL‑1β treatment. Results indicated that AST protected against chondrocyte apoptosis induced by IL‑1β. Western blotting indicated that AST increased the protein expression of LC3‑II/I and decreased P62/SQSTM1 expression, which suggested that AST upregulated autophagy activity in chondrocytes. Fluorescent protein GFP‑LC3 analysis and transmission electron microscopy observation confirmed that autophagy was promoted by AST. In contrast, after autophagy inhibited by 3‑methyladenine, chondrocyte apoptosis was further increased under IL‑1β treatment. Ultimately, rapamycin was used as a positive control, whose results confirmed that rapamycin‑mediated autophagy also decreased chondrocyte apoptosis induced by IL‑1β. In conclusion, these results suggested that AST‑mediated autophagy serves an anti‑apoptotic role in chondrocytes, which may aid the development of novel therapeutic approaches for OA treatment.
Collapse
Affiliation(s)
- Jianhong Liu
- System Complexity Research Center of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, P.R. China
| | - Qinggang Meng
- System Complexity Research Center of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, P.R. China
| | - Hanguang Jing
- System Complexity Research Center of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, P.R. China
| | - Sheng Zhou
- System Complexity Research Center of Chinese Medicine, Beijing University of Chinese Medicine, Beijing 100029, P.R. China
| |
Collapse
|
42
|
Ding ZF, Chen JQ, Lin J, Zhu XS, Xu GH, Wang RL, Meng QG, Wang W. Development of In situ hybridization and real-time PCR assays for the detection of Hepatospora eriocheir, a microsporidian pathogen in the Chinese mitten crab Eriocheir sinensis. J Fish Dis 2017; 40:919-927. [PMID: 27859349 DOI: 10.1111/jfd.12573] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2016] [Revised: 09/26/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
A microsporidian parasite, Hepatospora eriocheir, is an emerging pathogen for the Chinese mitten crab Eriocheir sinensis. Currently, there is scant information about the way it transmits infection in the crustacean of commercial importance, including its pathogenesis, propagation and infection route in vivo. In this study, chromogenic in situ hybridization (ISH) and quantitative real-time PCR (qPCR) assays were developed to address this pressing need, and we provided an advance in the detection methods available. Pathogens can be seen in situ with associated lesions using ISH. Positive hybridization signals were noted inside the epithelial cells of the hepatopancreas, and putative free parasite spores were observed within the tubule lumen, which were associated with lesions detected by electron microscopy and haematoxylin and eosin (H&E) analysis. qPCR allows the determination of parasite loads in infected tissues, which is important for understanding disease progression and transmission. The hepatopancreas displayed the biggest statistical copy numbers among different tissues of infected crabs, confirming a tissue-specific pathogen infection characteristic. The qPCR assay also proved to be suitable for the diagnosis of asymptomatic carrier crabs. Combination of the two methods could facilitate the study of H. eriocheir infection mechanism in E. sinensis, enhance the early diagnosis of the pathogen and improve the management of microsporidian diseases in commercial crustaceans.
Collapse
Affiliation(s)
- Z F Ding
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - J Q Chen
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - J Lin
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - X S Zhu
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - G H Xu
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - R L Wang
- Jiangsu Key Laboratory for Biofunctional Molecules, College of Life Science and Chemistry, Jiangsu Second Normal University, Nanjing, China
| | - Q G Meng
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - W Wang
- College of Life Sciences, Nanjing Normal University, Nanjing, China
| |
Collapse
|
43
|
Abstract
BACKGROUND Pressure ulcers often seriously affect the quality of life of patients. Moist Exposed Burn Ointment (MEBO) has been developed to treat patients with pressure ulcers. The present study aimed to evaluate the efficacy and safety of MEBO in the treatment of pressure ulcers in Chinese patients. METHODS Seventy-two patients with pressure ulcers were randomly assigned to 2 groups who received a placebo or MEBO for 2 months. The primary outcomes included the wound surface area (WSA) and pressure ulcer scale for healing (PUSH) tool. The secondary outcomes included a visual analog scale (VAS), questionnaire of ulcer status, and adverse effects. RESULTS Sixty-seven patients completed the study. After 2 months of treatment, the difference of mean change from the baseline was greater for MEBO (vs placebo) for WSA mean (SD) -6.0 (-8.8, -3.3), PUSH Tool -2.6 (-4.7, -1.5), and VAS score -2.9 (-4.4, -1.7). On the basis of the questionnaire, the pressure ulcers were "completely healed" (50.0% vs 16.7%) (P < .05) in patients after 2 months of treatment with MEBO versus placebo. No major adverse effects were found in the 2 groups. CONCLUSION We showed that MEBO is effective and well tolerated for improving wound healing in Chinese patients with pressure ulcers.
Collapse
Affiliation(s)
- Wei Li
- Department of Medical Science Institute of Harbin, the First Hospital of Harbin, Harbin Medical University, Harbin
| | - Yubo Ma
- Department of Orthopedics, Hongqi Hospital of Mudanjiang Medical College, Mudanjiang
| | - Qi Yang
- Department of Medical Science Institute of Harbin, the First Hospital of Harbin, Harbin Medical University, Harbin
| | - Yu Pan
- Department of Study Center, the First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Qinggang Meng
- Department of Medical Science Institute of Harbin, the First Hospital of Harbin, Harbin Medical University, Harbin
| |
Collapse
|
44
|
Wang J, Wang W, Li J, Wu L, Song M, Meng Q. miR182 activates the Ras-MEK-ERK pathway in human oral cavity squamous cell carcinoma by suppressing RASA1 and SPRED1. Onco Targets Ther 2017; 10:667-679. [PMID: 28223824 PMCID: PMC5308578 DOI: 10.2147/ott.s121864] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Purpose The constitutive activation of the Ras–MEK–ERK signaling pathway in oral cavity squamous cell carcinoma (OSCC) has been found to be tightly controlled at multiple levels under physiological conditions. RASA1 and SPRED1 are two important negative regulators of this pathway, but the exact regulating mechanism remains unclear. In this study, we aimed to explore the potential regulating mechanisms involved in the Ras–MEK–ERK signaling pathway in OSCC. Materials and methods MicroRNA (miRNA) expression was detected by quantitative reverse-transcription polymerase chain reaction. The protein levels of RASA1, SPRED1, and signaling proteins were detected by Western blot. Cell growth was determined using CCK-8 reagent, colony formation was stained by crystal violet, and cell invasion was tested using transwell chambers. Cell apoptosis and the cell cycle were then analyzed by flow cytometry. The binding of miR182 with RASA1 or SPRED1 was evaluated by luciferase reporter assays on a dual-luciferase reporter system. Results The expression of miR182 was found to be upregulated significantly in malignant oral carcinoma tissues compared with the adjacent nonmalignant tissues, and was inversely correlated with protein levels of RASA1 and SPRED1. Overexpression of miR182 in OSCC cell lines sustained Ras–MEK–ERK signaling-pathway activation, and promoted cell proliferation, cell-cycle progression, colony formation, and invasion capacity, whereas miR182 downregulation alleviated these properties significantly in vitro. Furthermore, we demonstrated that miR182 exerted its oncogenic role in OSCC by directly targeting and suppressing RASA1 and SPRED1. Conclusion Our results bring new insights into the important role of miR182 in the activation of the Ras–MEK–ERK signaling pathway, and suggest that miR182 may be used as a potential target for treatment of OSCC, prompting further investigation into miRNA antisense oligonucleotides for cancer therapy.
Collapse
Affiliation(s)
- Jinhui Wang
- Department of Clinical Laboratory, Harbin First Hospital
| | - Wei Wang
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University
| | - Jichen Li
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University
| | - Liji Wu
- Department of Oral and Maxillofacial Surgery, The First Affiliated Hospital of Harbin Medical University
| | - Mei Song
- Department of Clinical Laboratory, Harbin First Hospital
| | - Qinggang Meng
- Department of Osteological Surgery, Harbin First Hospital, Harbin, People's Republic of China
| |
Collapse
|
45
|
Rutigliano HM, Wilhelm A, Hall J, Shi B, Meng Q, Stott R, Bunch TD, White KL, Davies CJ, Polejaeva IA. Cytokine gene expression at the maternal–fetal interface after somatic cell nuclear transfer pregnancies in small ruminants. Reprod Fertil Dev 2017; 29:646-657. [DOI: 10.1071/rd15103] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Accepted: 09/16/2015] [Indexed: 12/27/2022] Open
Abstract
The present retrospective study investigated pregnancy rates, the incidence of pregnancy loss and large offspring syndrome (LOS) and immune-related gene expression of sheep and goat somatic cell nuclear transfer (SCNT) pregnancies. We hypothesised that significantly higher pregnancy losses observed in sheep compared with goat SCNT pregnancies are due to the increased amounts of T-helper 1 cytokines and proinflammatory mediators at the maternal–fetal interface. Sheep and goat SCNT pregnancies were generated using the same procedure. Control pregnancies were established by natural breeding. Although SCNT pregnancy rates at 45 days were similar in both species, pregnancy losses between 45 and 60 days of gestation and the incidence of LOS were significantly greater in sheep than in goats. At term, the expression of proinflammatory genes in sheep SCNT placentas was increased, whereas that in goats was similar to that in control animals. Genes with altered expression in sheep SCNT placentas included cytotoxic T-lymphocyte-associated protein 4 (CTLA4), interleukin 2 receptor alpha (IL2RA), cluster of differentiation 28 (CD28), interferon gamma (IFNG), interleukin 6 (IL6), interleukin 10 (IL10), transforming growth factor beta 1 (TGFB1), tumor necrosis factor alpha (TNF-α), interleukin 1 alpha (IL1A) and chemokine (C-X-C motif) ligand 8 (CXCL8). Major histocompatibility complex-I protein expression was greater in sheep and goat SCNT placentas at term than in control pregnancies. An unfavourable immune environment is present at the maternal–fetal interface in sheep SCNT pregnancies.
Collapse
|
46
|
Wang H, Yang J, Lu W, Li B, Tian K, Meng Q. No-reference stereoscopic image-quality metric accounting for left and right similarity map and spatial structure degradation. Opt Lett 2016; 41:5640-5643. [PMID: 27973478 DOI: 10.1364/ol.41.005640] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Blind quality assessment of 3D images is used to confront more real challenges than 2D images. In this Letter, we develop a no-reference stereoscopic image quality assessment (SIQA) model based on the proposed left and right (LR)-similarity map and structural degradation. In the proposed method, local binary pattern features are extracted from the cyclopean image that are effective for describing the distortion of 3D images. More importantly, we first propose the LR-similarity map that can indicate the stereopair quality and demonstrate that the use of LR-similarity information results in a consistent improvement in the performance. The massive experimental results on the LIVE 3D and IRCCyN IQA databases demonstrate that the designed model is strongly correlated to subjective quality evaluations and competitive to the state-of-the-art SIQA algorithms.
Collapse
|
47
|
Yang J, Wang Y, Li B, Lu W, Meng Q, Lv Z, Zhao D, Gao Z. Quality assessment metric of stereo images considering cyclopean integration and visual saliency. Inf Sci (N Y) 2016. [DOI: 10.1016/j.ins.2016.09.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
48
|
Hu J, Shi K, Meng Q. Mapping the knowledge of international Chinese medicines treatment on type 2 diabetes: A biblimetrical study. Journal of Traditional Chinese Medical Sciences 2016. [DOI: 10.1016/j.jtcms.2016.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
49
|
Zhou G, Zeng Y, Guo J, Meng Q, Meng Q, Jia G, Cheng K, Zeng C, Zhang M, Liu G, Zhu S. Vitrification transiently alters Oct-4, Bcl2 and P53 expression in mouse morulae but does not affect embryo development in vitro. Cryobiology 2016; 73:120-5. [PMID: 27590081 DOI: 10.1016/j.cryobiol.2016.08.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 08/26/2016] [Accepted: 08/28/2016] [Indexed: 01/08/2023]
Abstract
This study was conducted to determine the impact of vitrification on the expression of genes regulating pluripotency and apoptosis in mouse morulae. The morulae were randomly allocated into three groups: (1) untreated (control), (2) exposed to vitrification solution without freezing (toxicity), or (3) vitrified by open-pulled straw method (vitrification). In vitro development was evaluated by morphology and assessed by the blastocyst rate and the blastocyst total cell number. Gene expression in morulae and blastocysts was assessed by quantitative Real Time-PCR (qRT-PCR) and western blot. The results showed that at morulae stage, the POU class 5 homeobox1 (Oct-4) and B-cell lymphoma2 (Bcl2) mRNA levels of vitrification group were significantly lower (P < 0.05) than those of control. Strikingly, the p53 mRNA level was significantly higher in vitrification group. However, the Oct-4, Bcl2 and p53 mRNA levels in mouse blastocysts were not statistically different. Furthermore, western blot results showed that there was no significant difference in Oct-4, Bcl2 and p53 expression at protein level in mouse morulae among three groups. Additionally, the blastocyst rate (96.67%-100.00%) and the average cell number of blastocysts (89.67-92.33) were similar between all groups. The data demonstrate that vitrification transiently changes the mRNA expression of several key genes in mouse morulae regulating early embryo development but does not affect embryo developmental potential in vitro.
Collapse
Affiliation(s)
- Guangbin Zhou
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, PR China.
| | - Yan Zeng
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China; College of Animal Science and Technology, Southwest University, Chongqing 400715, PR China
| | - Jiang Guo
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT, USA
| | - Qingyong Meng
- State Key Laboratory of AgroBiotechnology, China Agricultural University, Beijing 100193, PR China
| | - Gongxue Jia
- Key Laboratory of Adaption and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, PR China
| | - Keren Cheng
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Changjun Zeng
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Ming Zhang
- Institute of Animal Genetics and Breeding, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu 611130, PR China
| | - Guoshi Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Shi'en Zhu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| |
Collapse
|
50
|
Polejaeva IA, Ranjan R, Davies CJ, Regouski M, Hall J, Olsen AL, Meng Q, Rutigliano HM, Dosdall DJ, Angel NA, Sachse FB, Seidel T, Thomas AJ, Stott R, Panter KE, Lee PM, Van Wettere AJ, Stevens JR, Wang Z, MacLeod RS, Marrouche NF, White KL. Increased Susceptibility to Atrial Fibrillation Secondary to Atrial Fibrosis in Transgenic Goats Expressing Transforming Growth Factor-β1. J Cardiovasc Electrophysiol 2016; 27:1220-1229. [PMID: 27447370 DOI: 10.1111/jce.13049] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2016] [Revised: 06/06/2016] [Accepted: 06/17/2016] [Indexed: 01/06/2023]
Abstract
INTRODUCTION Large animal models of progressive atrial fibrosis would provide an attractive platform to study relationship between structural and electrical remodeling in atrial fibrillation (AF). Here we established a new transgenic goat model of AF with cardiac specific overexpression of TGF-β1 and investigated the changes in the cardiac structure and function leading to AF. METHODS AND RESULTS Transgenic goats with cardiac specific overexpression of constitutively active TGF-β1 were generated by somatic cell nuclear transfer. We examined myocardial tissue, ECGs, echocardiographic data, and AF susceptibility in transgenic and wild-type control goats. Transgenic goats exhibited significant increase in fibrosis and myocyte diameters in the atria compared to controls, but not in the ventricles. P-wave duration was significantly greater in transgenic animals starting at 12 months of age, but no significant chamber enlargement was detected, suggesting conduction slowing in the atria. Furthermore, this transgenic goat model exhibited a significant increase in AF vulnerability. Six of 8 transgenic goats (75%) were susceptible to AF induction and exhibited sustained AF (>2 minutes), whereas none of 6 controls displayed sustained AF (P < 0.01). Length of induced AF episodes was also significantly greater in the transgenic group compared to controls (687 ± 212.02 seconds vs. 2.50 ± 0.88 seconds, P < 0.0001), but no persistent or permanent AF was observed. CONCLUSION A novel transgenic goat model with a substrate for AF was generated. In this model, cardiac overexpression of TGF-β1 led to an increase in fibrosis and myocyte size in the atria, and to progressive P-wave prolongation. We suggest that these factors underlie increased AF susceptibility.
Collapse
Affiliation(s)
- Irina A Polejaeva
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Ravi Ranjan
- CARMA Center, Division of Cardiology, University of Utah, Salt Lake City, UT.,Department of Bioengineering, University of Utah, Salt Lake City, UT
| | - Christopher J Davies
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Misha Regouski
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Justin Hall
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Aaron L Olsen
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Qinggang Meng
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Heloisa M Rutigliano
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Derek J Dosdall
- Center for Engineering Innovation, University of Utah, Salt Lake City, UT
| | - Nathan A Angel
- CARMA Center, Division of Cardiology, University of Utah, Salt Lake City, UT
| | - Frank B Sachse
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT.,Department of Bioengineering, University of Utah, Salt Lake City, UT
| | - Thomas Seidel
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT
| | - Aaron J Thomas
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Rusty Stott
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Kip E Panter
- USDA ARS Poisonous Plant Research Laboratory, Logan, UT
| | - Pamela M Lee
- College of Veterinary Medicine, Washington State University, Pullman, WA
| | - Arnaud J Van Wettere
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - John R Stevens
- Department of Mathematics and Statistics, Utah State University, Logan, UT
| | - Zhongde Wang
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| | - Rob S MacLeod
- CARMA Center, Division of Cardiology, University of Utah, Salt Lake City, UT.,Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT
| | - Nassir F Marrouche
- CARMA Center, Division of Cardiology, University of Utah, Salt Lake City, UT
| | - Kenneth L White
- Department of Animal, Dairy and Veterinary Sciences, Utah State University, Logan, UT
| |
Collapse
|