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Yang L, Chen H, Yang C, Hu Z, Jiang Z, Meng S, Liu R, Huang L, Yang K. Research progress on the regulatory mechanism of integrin-mediated mechanical stress in cells involved in bone metabolism. J Cell Mol Med 2024; 28:e18183. [PMID: 38506078 PMCID: PMC10951882 DOI: 10.1111/jcmm.18183] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Revised: 01/14/2024] [Accepted: 02/04/2024] [Indexed: 03/21/2024] Open
Abstract
Mechanical stress is an internal force between various parts of an object that resists external factors and effects that cause an object to deform, and mechanical stress is essential for various tissues that are constantly subjected to mechanical loads to function normally. Integrins are a class of transmembrane heterodimeric glycoprotein receptors that are important target proteins for the action of mechanical stress stimuli on cells and can convert extracellular physical and mechanical signals into intracellular bioelectrical signals, thereby regulating osteogenesis and osteolysis. Integrins play a bidirectional regulatory role in bone metabolism. In this paper, relevant literature published in recent years is reviewed and summarized. The characteristics of integrins and mechanical stress are introduced, as well as the mechanisms underlying responses of integrin to mechanical stress stimulation. The paper focuses on integrin-mediated mechanical stress in different cells involved in bone metabolism and its associated signalling mechanisms. The purpose of this review is to provide a theoretical basis for the application of integrin-mediated mechanical stress to the field of bone tissue repair and regeneration.
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Affiliation(s)
- Li Yang
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | - Hong Chen
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | - Chanchan Yang
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | - Zhengqi Hu
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | - Zhiliang Jiang
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | - Shengzi Meng
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
| | | | - Lan Huang
- Department of Periodontology, Hospital of StomatologyZunyi Medical UniversityZunyiChina
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Liu Q, Lun L, Meng S, Wang Z, Qu Y, Huang X, Chen X, Wang J, Zhang J, Wang K, Wu R, Zhang Y, Yi J, Luo J. Feasibility of Omitting Contralateral Neck Irradiation in Patients with Node-Negative Sinonasal Squamous Cell Carcinoma Crossing the Midline. Int J Radiat Oncol Biol Phys 2023; 117:e600. [PMID: 37785813 DOI: 10.1016/j.ijrobp.2023.06.1961] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) This study aims to analyze the nodal target volume in patients with node-negative SNSCC crossing the midline. MATERIALS/METHODS One hundred and four patients with node-negative advanced sinonasal squamous cell carcinoma (SNSCC) crossing the midline were included. Survival rates were estimated and compared between treatment groups. RESULTS Sixty-four patients received contralateral ENI (contralateral ENI group), while forty patients did not (non-contralateral ENI group). The median follow-up time was 89.99 and 95.01 months in the contralateral and non-contralateral ENI groups, respectively. At 5 years, the regional relapse-free survival and contralateral regional relapse-free survival were 57.68% vs. 55.83% (p = 0.372), and 57.68% vs. 61.62% (p = 0.541), in contralateral ENI group vs. non-contralateral ENI group, respectively. Five-year overall survival, local relapse-free survival, and distant metastasis-free survival were similar in the two groups (all p > 0.05). CONCLUSION In patients with node-negative SNSCC crossing the midline, omission of contralateral ENI did not affect regional control and survival outcomes on the premise of receiving ipsilateral ENI covering at least levels Ib and II.
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Affiliation(s)
- Q Liu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - L Lun
- Department of Head and Neck Radiotherapy, Harbin Medical University Cancer Hospital, Harbin, China
| | - S Meng
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Qu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Huang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Chen
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - K Wang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - R Wu
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Zhang
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Yi
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Luo
- Department of Radiation Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Hu Z, Jiang Z, Meng S, Liu R, Yang K. Research Progress on the Osteogenesis-Related Regulatory Mechanisms of Human Umbilical Cord Mesenchymal Stem Cells. Stem Cell Rev Rep 2023; 19:1252-1267. [PMID: 36917312 DOI: 10.1007/s12015-023-10521-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2023] [Indexed: 03/16/2023]
Abstract
In recent years, research on human umbilical cord mesenchymal stem cells (hUCMSCs) derived from human umbilical cord tissue has accelerated and entered clinical application research. Compared with mesenchymal stem cells (MSCs) from other sources, hUCMSCs can be extracted from different parts of umbilical cord or from the whole umbilical cord. It has the characteristics of less ethical controversy, high differentiation potential, strong proliferation ability, efficient expansion in vitro, avoiding immune rejection and immune privilege, and avoids the limitations of lack of embryonic stem cells, heterogeneity, ethical and moral constraints. hUCMSCs avoid the need for embryonic stem cell sources, heterogeneity, and ethical and moral constraints. Bone defects are very common in clinical practice, but completely effective bone tissue regeneration treatment is challenging. Currently, autologous bone transplantation and allogeneic bone transplantation are main treatment approaches in clinical work, but each has different shortcomings, such as limited sources, invasiveness, immune rejection and insufficient osteogenic ability. Therefore, to solve the bottleneck of bone tissue regeneration and repair, a great amount of research has been carried out to explore the clinical advantages of hUCMSCs as seed cells to promote osteogenesis.However, the regulation of osteogenic differentiation of hUCMSCs is an extremely complex process. Although a large number of studies have demonstrated that the role of hUCMSCs in enhancing local bone regeneration and repair through osteogenic differentiation and transplantation into the body involves multiple signaling pathways, there is no relevant article that summarize the findings. This article discusses the osteogenesis-related regulatory mechanisms of hUCMSCs, summarizes the currently known related mechanisms, and speculates on the possible signals.
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Affiliation(s)
- Zhengqi Hu
- Department of Periodontology, Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Zhiliang Jiang
- Department of Periodontology, Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Shengzi Meng
- Department of Periodontology, Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Rong Liu
- Department of Periodontology, Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, Guizhou, China
| | - Kun Yang
- Department of Periodontology, Hospital of Stomatology, Zunyi Medical University, Zunyi, 563000, Guizhou, China.
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Liu CC, Meng S, Ding Y. [Principle and routine operation of laser assisted periodontal surgery]. Zhonghua Kou Qiang Yi Xue Za Zhi 2023; 58:498-505. [PMID: 37082858 DOI: 10.3760/cma.j.cn112144-20230228-00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Periodontitis is one of the most common infectious oral diseases, which can cause destruction of periodontal supporting tissues and even tooth mobility and loss. Controlling infection, eliminating inflammation, restoring the physiological shape of periodontal tissues, and meeting functional and aesthetic needs are the main goals of periodontal treatment. When periodontitis develops to a more severe stage, surgical treatment is necessary to handle soft and hard tissues for good treatment results. Since the development of the first Nd:YAG laser dedicated to dental medicine by Myers in 1990, over 30 years of clinical and basic research have shown that lasers have tremendous potential in assisting periodontal surgery. This article summarizes the principles and operational routines of laser-assisted periodontal surgery, aiming to provide clinical reference for diagnosis and treatment.
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Affiliation(s)
- C C Liu
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
| | - S Meng
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
| | - Y Ding
- Department of Periodontics, West China Hospital of Stomatology, Sichuan University & National Clinical Research Center for Oral Diseases & State Key Laboratory of Oral Diseases, Chengdu 610041, China
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Zhang Y, Zhao J, Wang B, Lin Y, Meng S, Luo Y. [Contrast-enhanced ultrasonography with intra-glandular contrast injection can improve the diagnostic accuracy of central compartment lymph node metastasis of thyroid cancer]. Nan Fang Yi Ke Da Xue Xue Bao 2023; 43:219-224. [PMID: 36946041 PMCID: PMC10034552 DOI: 10.12122/j.issn.1673-4254.2023.02.09] [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] [Indexed: 03/23/2023]
Abstract
OBJECTIVE To investigate the value of lymphatic contrast-enhanced ultrasound (LCEUS) with intra-glandular injection of contrast agent for diagnosis of central compartment lymph node metastasis of thyroid cancer. METHODS From November, 2020 to May, 2022, the patients suspected of having thyroid cancer and scheduled for biopsy at our center received both conventional ultrasound and LCEUS examinations of the central compartment lymph nodes before surgery. All the patients underwent surgical dissection of the lymph nodes. The perfusion features in LCEUS were classified as homogeneous enhancement, heterogeneous enhancement, regular/irregular ring, and non-enhancement. With pathological results as the gold standard, we compared the diagnostic ability of conventional ultrasound and LCEUS for identifying metastasis in the central compartment lymph nodes. RESULTS Forty-nine patients with 60 lymph nodes were included in the final analysis. Pathological examination reported metastasis in 34 of the lymph nodes, and 26 were benign lymph nodes. With ultrasound findings of heterogeneous enhancement, irregular ring and non-enhancement as the criteria for malignant lesions, LCEUS had a diagnostic sensitivity, specificity and accuracy of 97.06%, 92.31% and 95% for diagnosing metastatic lymph nodes, respectively, demonstrating its better performance than conventional ultrasound (P < 0.001). Receiver-operating characteristic curve analysis showed that LCEUS had a significantly greater area under the curve than conventional ultrasound for diagnosing metastatic lymph nodes (94.7% [0.856-0.988] vs 78.2% [0.656-0.878], P=0.003). CONCLUSION LCEUS can enhance the display and improve the diagnostic accuracy of the central compartment lymph nodes to provide important clinical evidence for making clinical decisions on treatment of thyroid cancer.
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Affiliation(s)
- Y Zhang
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J Zhao
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - B Wang
- Department of Surgery, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Lin
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - S Meng
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Luo
- Department of Ultrasound, First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
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Tran L, Meng S, Wang P, Pan I, Yi T, Wang R, Jiao Z, Bai H. Abstract No. 240 Automated outcome prediction in mechanical thrombectomy for acute large vessel ischemic stroke using 3D convolutional neural networks applied to CT angiography. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Freilinger A, Kaserer K, Zettinig G, Pruidze P, Reissig LF, Rossmann T, Weninger WJ, Meng S. Ultrasound for the detection of the pyramidal lobe of the thyroid gland. J Endocrinol Invest 2022; 45:1201-1208. [PMID: 35157251 PMCID: PMC9098552 DOI: 10.1007/s40618-022-01748-z] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 01/16/2022] [Indexed: 12/03/2022]
Abstract
PURPOSE The pyramidal lobe (PL) is an ancillary lobe of the thyroid gland that can be affected by the same pathologies as the rest of the gland. We aimed to assess the diagnostic performance of high-resolution sonography in the detection of the PL with verification by dissection and histological examination. METHODS In a prospective, cross-sectional mono-center study, 50 fresh, non-embalmed cadavers were included. Blinded ultrasound examination was performed to detect the PL by two investigators of different experience levels. If the PL was detected with ultrasound, dissection was performed to expose the PL and obtain a tissue sample. When no PL was detected with ultrasound, a tissue block of the anterior cervical region was excised. An endocrine pathologist microscopically examined all tissue samples and tissue blocks for the presence of thyroid parenchyma. RESULTS The prevalence of the PL was 80% [40/50; 95% CI (68.9%; 91.1%)]. Diagnostic performance for both examiners was: sensitivity (85.0%; 42.5%), specificity (50.0%; 60.0%), positive predictive value (87.2%; 81.0%), negative predictive value (45.5%; 21.0%) and accuracy (78.0%; 46.0%). Regression analysis demonstrated that neither thyroid parenchyma echogenicity, thyroid gland volume, age nor body size proved to be covariates in the accurate detection of a PL (p > .05). CONCLUSION We report that high-resolution ultrasound is an adequate examination modality to detect the PL. Our findings indicate a higher prevalence than previously reported. Therefore, the PL may be regarded as a regular part of the thyroid gland. We also advocate a dedicated assessment of the PL in routine thyroid ultrasound.
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Affiliation(s)
- A Freilinger
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - K Kaserer
- Laboratory Kaserer, Koperek und Beer OG, Reisnerstraße 5, 1030, Vienna, Austria
| | - G Zettinig
- Thyroid Center "Schilddrüsenpraxis Josefstadt", Laudongasse 12, 1080, Vienna, Austria
| | - P Pruidze
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - L F Reissig
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - T Rossmann
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
- Department of Neurosurgery, Neuromed Campus, Kepler University Hospital, Wagner-Jauregg-Weg 15, 4020, Linz, Austria
| | - W J Weninger
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria
| | - S Meng
- Division of Anatomy, Center for Anatomy and Cell Biology, Medical University Vienna, Waehringer Str. 13, 1090, Vienna, Austria.
- Department of Radiology, Hanusch Hospital Vienna, Heinrich-Collin-Straße 30, 1140, Vienna, Austria.
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Soler JM, Neretnieks I, Moreno L, Liu L, Meng S, Svensson U, Iraola A, Ebrahimi H, Trinchero P, Molinero J, Vidstrand P, Deissmann G, Říha J, Hokr M, Vetešník A, Vopálka D, Gvoždík L, Polák M, Trpkošová D, Havlová V, Park DK, Ji SH, Tachi Y, Ito T, Gylling B, Lanyon GW. Predictive Modeling of a Simple Field Matrix Diffusion Experiment Addressing Radionuclide Transport in Fractured Rock. Is It So Straightforward? NUCL TECHNOL 2021. [DOI: 10.1080/00295450.2021.1988822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - J. Říha
- Technical University of Liberec, Czech Republic
| | - M. Hokr
- Technical University of Liberec, Czech Republic
| | - A. Vetešník
- Czech Technical University in Prague, Czech Republic
| | - D. Vopálka
- Czech Technical University in Prague, Czech Republic
| | | | | | | | | | | | - S.-H. Ji
- KAERI, Daejeon, Republic of Korea
| | | | | | - B. Gylling
- Gylling GeoSolutions, Evanston, Illinois
| | - G. W. Lanyon
- Fracture Systems Ltd, St Ives, Cornwall, United Kindgom
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Lloyd-Hughes J, Oppeneer PM, Pereira Dos Santos T, Schleife A, Meng S, Sentef MA, Ruggenthaler M, Rubio A, Radu I, Murnane M, Shi X, Kapteyn H, Stadtmüller B, Dani KM, da Jornada FH, Prinz E, Aeschlimann M, Milot RL, Burdanova M, Boland J, Cocker T, Hegmann F. The 2021 ultrafast spectroscopic probes of condensed matter roadmap. J Phys Condens Matter 2021; 33:353001. [PMID: 33951618 DOI: 10.1088/1361-648x/abfe21] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 05/05/2021] [Indexed: 06/12/2023]
Abstract
In the 60 years since the invention of the laser, the scientific community has developed numerous fields of research based on these bright, coherent light sources, including the areas of imaging, spectroscopy, materials processing and communications. Ultrafast spectroscopy and imaging techniques are at the forefront of research into the light-matter interaction at the shortest times accessible to experiments, ranging from a few attoseconds to nanoseconds. Light pulses provide a crucial probe of the dynamical motion of charges, spins, and atoms on picosecond, femtosecond, and down to attosecond timescales, none of which are accessible even with the fastest electronic devices. Furthermore, strong light pulses can drive materials into unusual phases, with exotic properties. In this roadmap we describe the current state-of-the-art in experimental and theoretical studies of condensed matter using ultrafast probes. In each contribution, the authors also use their extensive knowledge to highlight challenges and predict future trends.
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Affiliation(s)
- J Lloyd-Hughes
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - P M Oppeneer
- Department of Physics and Astronomy, Uppsala University, PO Box 516, S-75120 Uppsala, Sweden
| | - T Pereira Dos Santos
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - A Schleife
- Department of Materials Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
- Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
- National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL 61801, United States of America
| | - S Meng
- Institute of Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - M A Sentef
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
| | - M Ruggenthaler
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
| | - A Rubio
- Max Planck Institute for the Structure and Dynamics of Matter, Center for Free Electron Laser Science (CFEL), 22761 Hamburg, Germany
- Nano-Bio Spectroscopy Group and ETSF, Universidad del País Vasco UPV/EHU 20018 San Sebastián, Spain
- Center for Computational Quantum Physics (CCQ), The Flatiron Institute, 162 Fifth Avenue, New York, NY, 10010, United States of America
| | - I Radu
- Department of Physics, Freie Universität Berlin, Germany
- Max Born Institute, Berlin, Germany
| | - M Murnane
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - X Shi
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - H Kapteyn
- JILA, University of Colorado and NIST, Boulder, CO, United States of America
| | - B Stadtmüller
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - K M Dani
- Femtosecond Spectroscopy Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son, Japan
| | - F H da Jornada
- Department of Materials Science and Engineering, Stanford University, Stanford, 94305, CA, United States of America
| | - E Prinz
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - M Aeschlimann
- Department of Physics and Research Center OPTIMAS, University of Kaiserslautern, 67663 Kaiserslautern, Germany
| | - R L Milot
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - M Burdanova
- Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, United Kingdom
| | - J Boland
- Photon Science Institute, Department of Electrical and Electronic Engineering, University of Manchester, United Kingdom
| | - T Cocker
- Michigan State University, United States of America
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Meng S, Lee D, Cantos A. Abstract No. 167 Interventional radiology procedure volume changes during the COVID-19 pandemic. J Vasc Interv Radiol 2021. [PMCID: PMC8079610 DOI: 10.1016/j.jvir.2021.03.173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Meng S, Chengazi H, Butani D, Lee D, Cantos A. Abstract No. 129 Pilot initiative of tube labeling in interventional radiology as a means to reduce medical errors and improve overall understanding among referring services. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Qiu M, Zhou Z, Meng S, Li H, Li Q, Wang J. 29MO Early-stage lung cancer detection by a noninvasive breath test. J Thorac Oncol 2021. [DOI: 10.1016/s1556-0864(21)01871-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Li J, Zhang C, Si H, Gu S, Liu X, Li D, Meng S, Yang X, Li S. Brain-specific monoallelic expression of bovine UBE3A is associated with genomic position. Anim Genet 2020; 52:47-54. [PMID: 33200847 DOI: 10.1111/age.13023] [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] [Accepted: 10/17/2020] [Indexed: 11/30/2022]
Abstract
Genomic imprinting is a rare epigenetic process in mammalian cells that leads to monoallelic expression of a gene with a parent-specific pattern. The UBE3A (ubiquitin protein ligase E3A) gene is imprinted with maternal allelic expression in the brain but biallelically expressed in all other tissues in humans. The silencing of the paternal UBE3A allele is thought to be caused by the paternally expressed antisense RNA transcript of UBE3A-ATS. The aberrant imprinted expression of the UBE3A is associated with several neurodevelopmental syndromes and psychological disorders. Cattle are a valuable model species in determining the genetic etiology of sporadic human disorder, and maternal expression of UEB3A has been revealed by next-generation sequencing study in the bovine conceptus. In this study, we investigated the allelic expression of UBE3A and UBE3A-ATS in adult bovine somatic tissues. To confirm the splicing pattern of bovine UBE3A, five 5' alternative transcripts (MT210534-MT210538) were first obtained from bovine brain tissue by RT-PCR. Based on 10 SNP genotypes, we found that the brain-specific monoallelic expression of bovine UBE3A did not occur along the entire locus, and there was a shift from biallelic expression to monoallelic expression in exon 14 of the UBE3A gene. However, the brain-specific monoallelic expression of bovine UBE3A-ATS occurred in the entire gene. These observations demonstrated that the monoallelic expression did not occur along the bovine UBE3A entire locus and was associated with the genomic position.
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Affiliation(s)
- J Li
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - C Zhang
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - H Si
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - S Gu
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - X Liu
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - D Li
- College of Bioscience and Bioengineering, Hebei University of Science and Technology, Shijiazhuang, Hebei, China
| | - S Meng
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - X Yang
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
| | - S Li
- College of Life Science, Agricultural University of Hebei, Baoding, Hebei, China
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Lakhotia H, Kim HY, Zhan M, Hu S, Meng S, Goulielmakis E. Laser picoscopy of valence electrons in solids. Nature 2020; 583:55-59. [PMID: 32612227 DOI: 10.1038/s41586-020-2429-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 05/01/2020] [Indexed: 11/09/2022]
Abstract
Valence electrons contribute a small fraction of the total electron density of materials, but they determine their essential chemical, electronic and optical properties. Strong laser fields can probe electrons in valence orbitals1-3 and their dynamics4-6 in the gas phase. Previous laser studies of solids have associated high-harmonic emission7-12 with the spatial arrangement of atoms in the crystal lattice13,14 and have used terahertz fields to probe interatomic potential forces15. Yet the direct, picometre-scale imaging of valence electrons in solids has remained challenging. Here we show that intense optical fields interacting with crystalline solids could enable the imaging of valence electrons at the picometre scale. An intense laser field with a strength that is comparable to the fields keeping the valence electrons bound in crystals can induce quasi-free electron motion. The harmonics of the laser field emerging from the nonlinear scattering of the valence electrons by the crystal potential contain the critical information that enables picometre-scale, real-space mapping of the valence electron structure. We used high harmonics to reconstruct images of the valence potential and electron density in crystalline magnesium fluoride and calcium fluoride with a spatial resolution of about 26 picometres. Picometre-scale imaging of valence electrons could enable direct probing of the chemical, electronic, optical and topological properties of materials.
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Affiliation(s)
- H Lakhotia
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - H Y Kim
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - M Zhan
- Institut für Physik, Universität Rostock, Rostock, Germany.,Max-Planck-Institut für Quantenoptik, Garching, Germany
| | - S Hu
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - S Meng
- Institute of Physics, Chinese Academy of Sciences, Beijing, China
| | - E Goulielmakis
- Institut für Physik, Universität Rostock, Rostock, Germany. .,Max-Planck-Institut für Quantenoptik, Garching, Germany.
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Wang J, Zhao J, Bai H, Wang X, Wang Y, Duan J, Chen H, Meng S, Tian Y, Huang DL, Wu YL. A phase IIIb open-label study of afatinib in EGFR TKI-naïve patients (pts) with EGFR mutation-positive (EGFRm+) NSCLC: Exploratory biomarker analysis. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz436.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
CLINICAL ISSUE Due to the high prevalence of clinically suspected cholecystitis or cholecystolithiasis the gallbladder is one of the organs examined the most by imaging. STANDARD RADIOLOGICAL METHODS In most clinical settings ultrasound is the primary imaging method because of its wide availability, speed and superior spatial resolution. In cases of ambiguous findings or potential complications computed tomography (CT) and magnetic resonance imaging (MRI) are used. METHODICAL INNOVATIONS When specific problems arise these imaging modalities may be enhanced by special techniques, e. g. contrast-enhanced ultrasound or dual-energy CT, and specific MRI sequences. PERFORMANCE Special variants of cholecystitis, such as xanthogranulomatous cholecystitis and adenomyomatosis, may pose a particularly difficult diagnostic problem as they may resemble other diseases. Sequelae of cholecystolithiasis, such as the Mirizzi syndrome and acute bowel obstruction, may complicate the imaging algorithm as the location and the symptoms shift. Cases of neoplastic diseases of gallbladder cancer and other malignancies require a broad spectrum of imaging modalities. ACHIEVEMENTS Although the gallbladder can easily be examined with ultrasound, some cases require a more thorough ultrasound examination. In some cases only a combination of multiple imaging modalities yield the diagnosis. Further developments regarding technical issues and the diagnostic algorithm can be expected. PRACTICAL RECOMMENDATIONS Ultrasound is the best first imaging modality. In cases of ambiguous findings or clinical complications CT or MRI are recommended.
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Affiliation(s)
- H Kopf
- Abteilung für Diagnostische und Interventionelle Radiologie, Göttlicher Heiland Krankenhaus, Vinzenzgruppe, Wien, Österreich
| | - W Schima
- Abteilung für Diagnostische und Interventionelle Radiologie, Göttlicher Heiland Krankenhaus, Vinzenzgruppe, Wien, Österreich
| | - S Meng
- Radiologie, KFJ Spital, Wien, Österreich.
- Zentrum für Anatomie und Zellbiologie, Medizinische Universität Wien, Währinger Str. 13, 1090, Wien, Österreich.
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Sun C, Meng S, Ye RX, Wu YJ, Wang QZ, Cao M, Zhou H. [A study on the association between the infant anemia and the utilization of maternal and child health services in ethnic minorities gathering in poverty-stricken rural areas of two provinces in Western China]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:330-333. [PMID: 30841678 DOI: 10.3760/cma.j.issn.0253-9624.2019.03.019] [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] [Indexed: 11/05/2022]
Abstract
In this study, 1 065 infants and young children aged 24 months below in ethnic minorities gathering in poor rural areas in poor rural areas of Liangshan Yi Autonomous Prefecture of Sichuan Province and Gannan Tibetan Autonomous Prefecture of Gansu Province were investigated for their anemia status from October to November 2014, and the association between anemia and the utilization of maternal and child health services was analyzed. The prevalence of anemia in this area was 52.68%(561/1 065). After the adjustment of socio-demographic characteristics of mothers and infants, compared with infants aged 2-5 months, Han ethnic group, and infants whose mother was not anemic, the OR(95%CI) values of infant anemia for infants aged 6-12 months, 13-8 months, 19-24 months, ethnic minorities group, and infants whose mother was anemic were 11.65 (7.09-19.14), 9.91 (5.99-16.38), 5.87 (3.39-10.16), 1.55 (1.10-2.18) and 1.52 (1.14-2.04), respectively; Compared with infants whose child examination times not up to standard, and who were not only non-hospital delivered but also received inadequate number of inoculation, the OR (95%CI) values of infant anemia for infants whose child examination times up to standard, and who were not only hospital delivered but also received adequate number of inoculation were 0.60 (0.38-0.94) and 0.71 (0.52-0.98), respectively. The infants anemia is associated with the utilization of maternal and child health services.
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Affiliation(s)
- C Sun
- West China School of Public Health, Sichuan University, Chengdu 610041, China
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Kopf H, Schima W, Meng S. Erratum zu: Differenzialdiagnose von Befunden an der Gallenblase. Radiologe 2019; 59:368. [DOI: 10.1007/s00117-019-0518-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yan GS, Li LL, Jiang SL, Meng S, Wu CC. [Clinical study of different adsorbents with dual plasma molecular adsorption system in the treatment of hepatic failure]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:51-55. [PMID: 30685924 DOI: 10.3760/cma.j.issn.1007-3418.2019.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Objective: To investigate the effects of two different sorbents(Carbon perfusion apparatus and Resin perfusion apparatus)in Double plasma molecular absorb syetem for liver failure treatment. Methods: A total of 152 cases with liver failure who were admitted to The Sixth People's Hospital of Zhengzhou, from June 2016 to May 2018 were selected and divided into DPMARS Carbon group (77 cases) and Resin group (75 cases). The two groups were observed in terms of liver function, prothrombin activity(PTA),Plasma albumin ,tumor necrosis factor alpha and interleukin-6 were detected and compared between the two groups before and after treatment. Results: ①The clinical symptoms improved in different degree in two groups, the recovery rate of Carbon cans Carbon perfusion apparatus group and Resin group separately were89.6% (69/77)、90.7% (68/75)(χ(2) = 0.048, P = 0.975), there were no statistical differences. There were no statistical differences between the two groups in untoward reactions(χ(2) = 0.235, P = 0.995), ②Compared with before treatment, TBil(t = 3.735, 3.728; P = 0.000, 0.000)、ALT(t = 5.117, 5.203; P = 0.000, 0.000)、TNF-α (t = 3.158, 3.094; P = 0.000, 0.002)、IL-6(t = 3.647, 3.559; P = 0.002, 0.003)decreased and ALB (t = 2.300, 3.065; P = 0.024, 0.003) increased significantly after treatment in both groups, and there were statistical differences. There were no signifiant differences in the changes in ALB(t = 0.316, 0.209; P = 0.657, 0.720) and PTA(t = 0.810, 0.843; P = 0.429, 0.516). ③After treatment, there were no signifiant differences in the changes in TBil、ALT、ALB、PTA、TNF-α、IL-6(t = 0.377、0.904、-1.133、-1.552、0.841、0.401; P = 0.952、0.283、0.826、0.094、0.154、0.457). Conclusion: Double plasma molecular absorb syetem is effective in treating liver failure. Carbon perfusion apparatus or Resin perfusion apparatus can be combined with Specific bilirubin adsorption column for DPMARS in clinical treatment,and their effects are similar.
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Affiliation(s)
- G S Yan
- Department of Blood Purification, the Sixth People's Hospital of Zhengzhou, Zhengzhou 450000, China
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Li W, Gai M, Rutkowski S, He W, Meng S, Gorin D, Dai L, He Q, Frueh J. An Automated Device for Layer-by-Layer Coating of Dispersed Superparamagnetic Nanoparticle Templates. Colloid J 2019. [DOI: 10.1134/s1061933x18060078] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Meng S, Mao J, Rouse EN, Le-Bel G, Bourget JM, Reed RR, Philippe E, How D, Zhang Z, Germain L, Guidoin R. The Red Kangaroo pericardium as a material source for the manufacture of percutaneous heart valves. Morphologie 2019; 103:37-47. [PMID: 30638803 DOI: 10.1016/j.morpho.2018.12.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [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: 09/20/2018] [Accepted: 12/06/2018] [Indexed: 11/28/2022]
Abstract
BACKGROUND The kangaroo pericardium might be considered to be a good candidate material for use in the manufacture of the leaflets of percutaneous heart valves based upon the unique lifestyle. The diet consists of herbs, forbs and strubs. The kangaroo pericardium holds an undulated structure of collagen. MATERIAL AND METHOD A Red Kangaroo was obtained after a traffic fatality and the pericardium was dissected. Four compasses were cut from four different sites: auricular (AUR), atrial (ATR), sternoperitoneal (SPL) and phrenopericardial (PPL). They were investigated by means of scanning electron microscopy, light microscopy and transmission electron microscopy. RESULTS All the samples showed dense and wavy collagen bundles without vascularisation from both the epicardium and the parietal pericardium. The AUR and the ATR were 150±25μm thick whereas the SPL and the PPL were thinner at 120±20μm. The surface of the epicardium was smooth and glistening. The filaments of collagen were well individualized without any aggregation, but the banding was poorly defined and somewhat blurry. CONCLUSION This detailed morphological analysis of the kangaroo pericardium illustrated a surface resistant to thrombosis and physical characteristics resistant to fatigue. The morphological characteristics of the kangaroo pericardium indicate that it represents an outstanding alternative to the current sources e.g., bovine and porcine. However, procurement of tissues from the wild raises supply and sanitary issues. Health concerns based upon sanitary uncertainty and reliability of supply of wild animals remain real problems.
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Affiliation(s)
- S Meng
- Chongqing Key Lab of Catalysis and Functional Organic Molecules; College of Environment and Biotechnology, Chongqing Technology and Business University, Chongqing, PR China
| | - J Mao
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - E N Rouse
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - G Le-Bel
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - J M Bourget
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R R Reed
- Department of Comparative Medicine, College of Veterinary of Tennessee, Knoxville, TN, USA
| | - E Philippe
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - D How
- Peninsula College of Medicine and Dentistry (PCMD), Plymouth, Devon, UK
| | - Z Zhang
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - L Germain
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada
| | - R Guidoin
- Axe Médecine Régénératrice, Centre de Recherche du CHU and Département de Chirurgie, Faculté de Médecine, Université Laval, Québec Canada.
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Strobel D, Meng S. Diagnostic ultrasound performed by a physician as a dialog. Ultraschall Med 2018; 39:251-252. [PMID: 29879748 DOI: 10.1055/a-0593-8473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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23
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Jiang J, Meng S, Huang S, Ruan Y, Lu X, Li JZ, Wu N, Huang J, Xie Z, Liang B, Deng J, Zhou B, Chen X, Ning C, Liao Y, Wei W, Lai J, Ye L, Wu F, Liang H. Effects of Talaromyces marneffei infection on mortality of HIV/AIDS patients in southern China: a retrospective cohort study. Clin Microbiol Infect 2018; 25:233-241. [PMID: 29698815 DOI: 10.1016/j.cmi.2018.04.018] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [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: 01/09/2018] [Revised: 04/17/2018] [Accepted: 04/18/2018] [Indexed: 10/17/2022]
Abstract
OBJECTIVE Talaromyces marneffei is an opportunistic infection with high morbidity among human immunodeficiency virus (HIV)/AIDS patients in Southeast Asia and southern China. Its effects on mortality in HIV/AIDS patients has not been clearly elucidated. METHODS We conducted a retrospective cohort study of hospitalized HIV-infected individuals at the Fourth People's Hospital of Nanning, Guangxi, China during 2012-2015. Kaplan-Meier analyses were used to calculate the cumulative mortality. Cox proportional hazard models and 1:1 propensity score matching (PSM) were used to evaluate the effects of T. marneffei infection on mortality of HIV/AIDS patients. RESULTS In total, 6791 HIV/AIDS patients were included, 1093 of them (16.1%) with documented T. marneffei co-infection. The mortality of T. marneffei-infected patients (25.0 per 100 person-months, 95% CI 21.5-26.7) was the highest among all AIDS-associated complications and was significantly higher than that of T. marneffei-uninfected HIV/AIDS patients (13.8 per 100 person-months, 95% CI 12.5-15.1; adjusted hazard ratio (AHR) 1.80, 95% CI 1.48-2.16). The results using PSM were similar (AHR 4.52 95% CI 2.43-8.42). The mortality of T. marneffei-infected patients was also significantly higher than that of patients without any complications. When stratified by demographic characteristics, T. marneffei infection has higher mortality risk in all stratifications. Co-infection with T. marneffei carries a higher mortality risk in patients at any CD4+ T-cell count. CONCLUSIONS Talaromyces marneffei infection is commonly found in hospitalized HIV/AIDS patients in southern China and was associated with a higher mortality rate than most HIV-associated complications. These results highlight the need for improved diagnosis, treatment and prevention of infection by this neglected fungal pathogen in southern China.
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Affiliation(s)
- J Jiang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - S Meng
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - S Huang
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - Y Ruan
- State Key Laboratory of Infectious Disease Prevention and Control (SKLID), Collaborative Innovation Centre for Diagnosis and Treatment of Infectious Diseases, Chinese Centre for Disease Control and Prevention (China CDC), Beijing, China
| | - X Lu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Z Li
- Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, USA
| | - N Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - J Huang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Z Xie
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Deng
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - B Zhou
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - X Chen
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China
| | - C Ning
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - Y Liao
- Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China
| | - W Wei
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - J Lai
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - L Ye
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China.
| | - F Wu
- Fourth People's Hospital of Nanning, Nanning, Guangxi, China.
| | - H Liang
- Guangxi Key Laboratory of AIDS Prevention and Treatment & Guangxi Universities Key Laboratory of Prevention and Control of Highly Prevalent Disease, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China; Guangxi Collaborative Innovation Centre for Biomedicine, Life Sciences Institute, Guangxi Medical University, Nanning, Guangxi, China.
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Grisold A, Meng S, Ackerl M, Grisold W. Late effect of mantle-field radiotherapy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ackerl M, Grisold A, Surboeck B, Meng S, Giometto B, Grisold W. Lymphoma and mononeuropathies - A rare association. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Zhou L, Yang L, Zhou X, Lv X, Song J, Meng S, Yue J, Yang S, Ji L. A comparison of HbA 1c concentration in people with Type 2 diabetes at sea level and high altitude in China: an observational study. Diabet Med 2017; 34:862-864. [PMID: 28370237 DOI: 10.1111/dme.13356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/21/2017] [Indexed: 11/29/2022]
Affiliation(s)
- L Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - L Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - X Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - X Lv
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - J Song
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - S Meng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - J Yue
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - S Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region in Lhasa, Tibet, China
| | - L Ji
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
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Zhou L, Song J, Yang S, Meng S, Lv X, Yue J, Mina A, Puchi B, Geng Y, Yang L. Bone mass loss is associated with systolic blood pressure in postmenopausal women with type 2 diabetes in Tibet: a retrospective cross-sectional study. Osteoporos Int 2017; 28:1693-1698. [PMID: 28154942 DOI: 10.1007/s00198-017-3930-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Accepted: 01/19/2017] [Indexed: 01/31/2023]
Abstract
UNLABELLED We conducted an observational cross-section study to investigate the status of bone mineral mass of Tibetan postmenopausal women with type 2 diabetes and the possible predictors for osteoporosis. We found that prevalence of osteoporosis was 27.0% and blood pressure was an independent risk factor for bone mass loss. INTRODUCTION The aims of this study is to investigate the prevalence of osteoporosis in postmenopausal women with type 2 diabetes dwelling in Tibet and the possible risk factors for bone mass loss. METHODS We recruited 99 Chinese Tibetan postmenopausal women with type 2 diabetes from the department of endocrinology of People's Hospital Tibet Autonomous Region. Multiple sites of bone mineral density (BMD) were measured by dual-energy X-ray absorptiometry (DXA). The subjects were divided into three groups based on BMD T-score: osteoporosis, osteopenia, and normal. The clinical characteristics were compared between groups. The risk factors for bone mass loss were assessed by multiple linear regression analysis. RESULTS Among diabetic postmenopausal women dwelling in high altitude, mean age was 62 ± 8 years, the median postmenopausal period was 12 years (5, 20), the median duration of diabetes mellitus was 3 years (1, 8), and mean BMI was 27.6 ± 4.2 kg/m2. Patients (52.5%) had hypertension. The percentages of patients with osteoporosis, osteopenia and normal BMD were 27.3, 42.4, and 30.3%, respectively. HbA1c and systolic blood pressure (SBP) were independently associated with T-scores of spine; ages and SBP were independently associated with T-scores of femoral neck or hip. CONCLUSIONS Among diabetic postmenopausal women dwelling in high altitude, 27.3% patients have osteoporosis, 42.4% patients have osteopenia, and 30.3% are normal. The BMD T-score of spine was inversely associated with SBP and positively associated with HbA1c, while the BMD T-score of femoral neck or hip was inversely associated with ages and SBP.
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MESH Headings
- Absorptiometry, Photon/methods
- Aged
- Altitude
- Blood Pressure/physiology
- Bone Density/physiology
- Bone Diseases, Metabolic/epidemiology
- Bone Diseases, Metabolic/etiology
- Bone Diseases, Metabolic/physiopathology
- Cross-Sectional Studies
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/epidemiology
- Diabetes Mellitus, Type 2/physiopathology
- Female
- Humans
- Hypertension/complications
- Hypertension/epidemiology
- Hypertension/physiopathology
- Middle Aged
- Osteoporosis, Postmenopausal/epidemiology
- Osteoporosis, Postmenopausal/etiology
- Osteoporosis, Postmenopausal/physiopathology
- Prevalence
- Retrospective Studies
- Risk Factors
- Tibet/epidemiology
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Affiliation(s)
- L Zhou
- Department of Endocrinology and Metabolism, Peking University of People's Hospital, Beijing, China
| | - J Song
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - S Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - S Meng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - X Lv
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - J Yue
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - A Mina
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - B Puchi
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - Y Geng
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China
| | - L Yang
- Department of Endocrinology, People's Hospital of Tibet Autonomous Region, Lhasa, Tibet, China.
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Deng G, Ma J, Shen S, Li Q, Peng L, Meng S, Zhou J, Wu J, Liu D. Sofosbuvir Monotherapy for Asymptomatic and Noncirrhotic Hepatitis C Infection in a Renal Retransplantation Recipient: A Case Report. Transplant Proc 2017; 48:3120-3122. [PMID: 27932161 DOI: 10.1016/j.transproceed.2016.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Accepted: 05/04/2016] [Indexed: 12/13/2022]
Abstract
Renal transplant recipients infected with hepatitis C virus (HCV) have a high risk of progressing to cirrhosis, end-stage liver diseases, and hepatocellular carcinoma. It is also considered as an independent risk for graft loss and is correlated with proteinuria, transplant glomerulopathy, HCV-associated glomerulonephritis, and chronic rejection. Previous therapy involving interferon alfa and ribavirin led to treatment complications, including toxicity, anemia, sepsis, and drug-drug interactions with calcineurin inhibitors, as well as reduced tolerability and efficacy. New direct-acting antiviral drugs simplify and shorten the treatment along with increasing tolerability and efficacy. Nevertheless, limited data and no specific regimen with direct-acting antiviral drugs have been described in the literature for renal transplant recipients with chronic HCV. We describe here the case of a 52-year-old Chinese man who diagnosed with chronic renal failure in 1997 and underwent renal transplantation the same year. In 2012, he was diagnosed with renal graft failure and again underwent hemodialysis. The patient then underwent his second renal transplantation and was administered an immunosuppressive cyclosporine-based regimen in 2015. During hemodialysis, he acquired asymptomatic genotype 1b HCV infection. Serologic test results reflecting liver cirrhosis were all negative, and ultrasound showed no abnormalities in the liver. The patient later required oral sofosbuvir monotherapy for 12 weeks after the second kidney transplantation. Curing HCV in renal transplant recipients is necessary. Although our treatment did not successfully result in a sustained virologic response, it suggests that genotype 1b HCV may have a poor response to a sofosbuvir monotherapy regimen. Specific and effective regimens for renal transplant recipients with HCV infection need to be confirmed in the future.
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Affiliation(s)
- G Deng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Ma
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Shen
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - Q Li
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - L Peng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - S Meng
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Zhou
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - J Wu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China
| | - D Liu
- Department of Organ Transplantation, Guangdong No. 2 Provincial People's Hospital, Guangzhou, People's Republic of China.
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Ding Y, Zheng H, Feng C, Wang B, Liu C, Mi K, Cao H, Meng S. Heat-Shock Protein gp96 Enhances T Cell Responses and Protective Potential to Bacillus Calmette-Guérin Vaccine. Scand J Immunol 2017; 84:222-8. [PMID: 27417661 DOI: 10.1111/sji.12463] [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: 05/17/2016] [Accepted: 07/12/2016] [Indexed: 01/28/2023]
Abstract
The commonly used Bacillus Calmette-Guérin (BCG) vaccine only induces moderate T cell responses and is less effective in protecting against pulmonary tuberculosis (TB) in adults and ageing populations. Thus, developing new TB vaccine candidates is an important strategy against the spread of Mycobacterium tuberculosis. Here, we demonstrated that immunization with heat-shock protein gp96 as an adjuvant led to a significantly increased CD4(+) and CD8(+) T cell response to a BCG vaccine. Secretion of the Th1-type cytokines was increased by splenocytes from gp96-immunized mice. In addition, adding gp96 as an adjuvant effectively improved the protection against intravenous challenge with Mycobacterium bovis BCG in mice. Our study reveals the novel property of gp96 in boosting the vaccine-specific T cell response and its potential use as an adjuvant for BCG vaccines against mycobacterial infection.
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Affiliation(s)
- Y Ding
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China
| | - H Zheng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - C Feng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - B Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - C Liu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - K Mi
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China
| | - H Cao
- College of Life Science and Technology, Heilongjiang Bayi Agricultural University, Daqing, China.
| | - S Meng
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences (CAS), Beijing, China.
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Zhang BJ, Meng S. [Research progress on cardiovascular dysfunction in offspring conceived by assisted reproductive technology]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:1064-1067. [PMID: 28056241 DOI: 10.3760/cma.j.issn.0253-3758.2016.12.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Houston M, Rountree R, Lamb J, Phipps S, Meng S, Zhang B. A placebo-controlled trial of a proprietary lipid-lowering nutraceutical supplement in the management of dyslipidemia. J BIOL REG HOMEOS AG 2016; 30:1115-1123. [PMID: 28078862] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
There is an ever growing emergence in the popularity of patient-driven care. As this health and wellness model grows, inquiries into diet, lifestyle, and supplemental approaches will continue to become a focal point for the healthcare consumer. Because of this, the aim of this study is to determine the tolerability, and overall effectiveness of a proprietary multi-ingredient lipid-lowering supplement in subjects with dyslipidemia. Forty participants were recruited for a single-center, double-blind randomized, placebocontrolled trial. Study participants were recruited between December 2014 and March 2015. Initial screening included a physical examination, renal and hepatic function, serum lipid, serum electrolytes, complete blood counts, and urine analysis. The 40 participants were randomly assigned to receive either the proprietary multi-ingredient lipid-lowering supplement (PMILLS) n= 20 or placebo n= 20. The trial consisted of a screening visit, a two-week run-in, and a four-month treatment period. Samples were taken at baseline, one month and four months of treatment. Results from the trial showed that the PMILLS significantly reduced total cholesterol (TC), low density lipoprotein (LDL-C), very low density lipoprotein (VLDL-C), oxidized LDL (oxLDL), Apo-lipoprotein B, triglycerides (TG), LDL particle number (LDL-P), heart rate, and diastolic blood pressure compared to placebo at one month and four months. The PMILLS significantly increased high density lipoprotein (HDL) particle number (HDL-P), and low density lipoprotein (LDL) particle size from dense type III and IV to larger type I and II LDL particle, compared to placebo at one month and four months. In addition, the PMILLS significantly reduced high sensitivity C-reactive protein (hs-CRP), tumor necrosis alpha (TNF-α), and interleukin 6 (IL-6) within the treatment group from baseline. There were no adverse effects noted in the treatment group after four months of supplementation. The present study demonstrates this PMILLS improves all relevant lipid parameters, such as particle numbers and particles sizes, as well as showing a significant reduction in inflammatory markers linked to cardiovascular health. With such combined changes in lipids, lipid sub-fractions, and inflammation, which are considered among the most effective means of reducing coronary heart disease (CHD), this PMILLS represents a new addition to safe and effective lipid-modifying strategies.
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Affiliation(s)
- M Houston
- Hypertension Institute of Nashville, Saint Thomas Hospital, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
| | - R Rountree
- Thorne Research, Inc., Sandpoint, Idaho, USA
| | - J Lamb
- Hypertension Institute of Nashville, Saint Thomas Hospital, Nashville, Tennessee, USA
| | - S Phipps
- Thorne Research, Inc., Sandpoint, Idaho, USA
| | - S Meng
- Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, USA
| | - B Zhang
- Thorne Research, Inc., Sandpoint, Idaho, USA
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Zheng Y, Qiu L, Fan L, Song C, Meng S, Chen J. Effect of polychlorinated biphenyls on osmoregulatory response and apoptosis in GIFT tilapia, Oreochromis niloticus. Genet Mol Res 2016; 15:gmr8620. [PMID: 27706697 DOI: 10.4238/gmr.15038620] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
In the present study, GIFT tilapia Oreochromis niloticus were exposed to polychlorinated biphenyls (PCBs) for 7, 14, and 21 days. Over the duration of the exposure, genotoxicity and the activity of Na+/K+-ATPase (NKA) and Ca+/Mg+-ATPase (CMA) were measured in the gill, kidney, and intestine, to evaluate changes in osmoregulatory response in O. niloticus. Our results showed significant decreases in organic NKA (except in gill tissues after 0.5 mg/L PCB-exposure) and CMA activity. The results of the genotoxicity assay showed significant increases in atp1a1a, nkcc2 (only in gill tissue), and fxyd7 (except after 21 days of 5 mg/L PCB exposure). We found significant increases in caspase proteins in the liver in the 5-mg/L PCB exposure group, and the transcripts showed dose-dependent increases between treatment groups over the exposure duration. This study presents evidence that chronic exposure to PCB could result in organic osmoregulatory response and hepatic apoptosis in GIFT tilapia.
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Affiliation(s)
- Y Zheng
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China .,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China .,Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
| | - L Qiu
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China
| | - L Fan
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China
| | - C Song
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China
| | - S Meng
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China
| | - J Chen
- Key Open Laboratory of Ecological Environment and Resources of Inland Fisheries, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu, China.,Key Laboratory of Genetic Breeding and Aquaculture Biology of Freshwater Fishes, Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture, Wuxi, Jiangsu, China.,Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu, China
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Meng S, Yang XL, Dang PM, Cui SL, Mu GJ, Chen CY, Liu LF. Evaluation of insertion-deletion markers suitable for genetic diversity studies and marker-trait correlation analyses in cultivated peanut (Arachis hypogaea L.). Genet Mol Res 2016; 15:gmr8207. [PMID: 27525935 DOI: 10.4238/gmr.15038207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Peanut is one of the most important oil crops worldwide. We used insertion-deletion (InDel) markers to assess the genetic diversity and population structure in cultivated peanut. Fifty-four accessions from North China were genotyped using 48 InDel markers. The markers amplified 61 polymorphic loci with 1 to 8 alleles and an average of 2.6 alleles per marker. The polymorphism information content values ranged from 0.0364 to 0.9030, with an average of 0.5038. Population structure and neighbor-joining (NJ) tree analyses suggested that all accessions could be divided into four clusters (A1-A4), using the NJ method. Likewise, four subpopulations (G1-G4) were identified using STRUCTURE analysis. A principal component analysis was also used and results concordant with the other analysis methods were found. A multi-linear stepwise regression analysis revealed that 13 InDel markers correlated with five measured agronomical traits. Our results will provide important information for future peanut molecular breeding and genetic research.
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Affiliation(s)
- S Meng
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Agricultural University of Hebei, Baoding, China
| | - X L Yang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Agricultural University of Hebei, Baoding, China
| | - P M Dang
- USDA-ARS, National Peanut Research Laboratory, Dawson, GA, USA
| | - S L Cui
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Agricultural University of Hebei, Baoding, China
| | - G J Mu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Agricultural University of Hebei, Baoding, China
| | - C Y Chen
- Department of Crop, Soil and Environmental Sciences, Auburn University, Auburn, AL, USA
| | - L F Liu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry, Laboratory for Crop Germplasm Resources of Hebei, College of Agronomy, Agricultural University of Hebei, Baoding, China
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Sun L, Meng S. Structure-based model profiles affinity constant of drugs with hPEPT1 for rapid virtual screening of hPEPT1's substrate. SAR QSAR Environ Res 2016; 27:637-652. [PMID: 27586363 DOI: 10.1080/1062936x.2016.1216010] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Accepted: 07/19/2016] [Indexed: 06/06/2023]
Abstract
The human proton-coupled peptide transporter (hPEPT1) with broad substrates is an important route for improving the pharmacokinetic performance of drugs. Thus, it is essential to predict the affinity constant between drug molecule and hPEPT1 for rapid virtual screening of hPEPT1's substrate during lead optimization, candidate selection and hPEPT1 prodrug design. Here, a structure-based in silico model for 114 compounds was constructed based on eight structural parameters. This model was built by the multiple linear regression method and satisfied all the prerequisites of the regression models. For the entire data set, the r(2) and adjusted r(2) values were 0.74 and 0.72, respectively. Then, this model was used to perform substrate/non-substrate classification. For 29 drugs from DrugBank database, all were correctly classified as substrates of hPEPT1. This model was also used to perform substrate/non-substrate classification for 18 drugs and their prodrugs; this QSAR model also can distinguish between the substrate and non-substrate. In conclusion, the QSAR model in this paper was validated by a large external data set, and all results indicated that the developed model was robust, stable, and can be used for rapid virtual screening of hPEPT1's substrate in the early stage of drug discovery.
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Affiliation(s)
- L Sun
- a Department of Pharmaceutics , School of Pharmacy, China Medical University , Shenyang , Liaoning , P.R. China
| | - S Meng
- a Department of Pharmaceutics , School of Pharmacy, China Medical University , Shenyang , Liaoning , P.R. China
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Li J, Yang H, Meng S, Zhou J, Ding Y. Metabonomic profiles reveal dose-dependent effects of Bu-Shen-Gu-Chi-Wan on the serum in experimental periodontitis of rat model. J Ethnopharmacol 2016; 193:248-254. [PMID: 27475973 DOI: 10.1016/j.jep.2016.07.051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2016] [Revised: 06/28/2016] [Accepted: 07/16/2016] [Indexed: 02/05/2023]
Abstract
ETHNO-PHARMACOLOGICAL RELEVANCE Bu-Shen-Gu-Chi-Wan is a Chinese patent medicine for the treatment of chronic periodontitis. It has an anti-inflammatory function in experimental periodontitis and can improve alveolar bone remodeling. AIM OF THE STUDY This study aims to explore the effects of Bu-Shen-Gu-Chi-Wan on serum metabolism in a rat model of periodontitis using 1H nuclear magnetic resonance (1H NMR) based metabonomics. MATERIALS AND METHODS The model of experimental periodontitis in a rat was established by steel wire ligation, plus a high glucose diet and Porphyromonas gingivalis inoculation. When the models had been established, 6-week-old Sprague-Dawley female rats (n=31) were divided into 5 groups: high dose group (Group H), medium dose group (Group M), low dose group (Group L), periodontitis group (Group P) and healthy control group (Group N). Rats in Group H, M and L were given the Bu-Shen-Gu-Chi-Wan solution (0.8, 2 and 4g/kg of body weight) daily for 60 days. Rats in Group P and N were administered normal saline (10ml/kg of body weight) in the same period. All rats were sacrificed at the end of the study and serum samples were collected. The metabolites in the serum were analyzed using 1H NMR in conjunction with principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA). RESULTS The metabonomic profiles of five groups showed the clustering of individual dataset in every group, and the 1st principal component and the 2nd principal component could significantly differentiate the datasets of medium dose or high dose group from other groups. The chemical shift regions at δ 1.22ppm, 1.86ppm, 2.26ppm, 2.34ppm and 2.42ppm showed the most obvious differences among the five groups. The correspondent metabolites were high density lipoprotein, pyruvate/oxaloacetate, arginine and glutamine. CONCLUSION The effects of Bu-Shen-Gu-Chi-Wan on the rat serum metabolites were dose dependent. High density lipoprotein, pyruvate/oxaloacetate, arginine and glutamine may be the serum biomarkers of Bu-Shen-Gu-Chi-Wan.
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Affiliation(s)
- J Li
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Implantology, the Affiliated Hospital of Stomatology, Chongqing Medical University, Chongqing, PR China.
| | - H Yang
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - S Meng
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - J Zhou
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Oral and Maxillofacial Surgery, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
| | - Y Ding
- Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China; Department of Periodontology, West China Hospital of Stomatology, Sichuan University, Chengdu, PR China.
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Song HF, Li H, Li X, Yang D, Han J, Jia RF, Meng S, Jin ZN. [A comparison of the outcome of therapy between fractional flow reserve guided- versus coronary angiography guided-strategy in acute coronary syndrome patients with moderate coronary lesions]. Zhonghua Nei Ke Za Zhi 2016; 55:520-4. [PMID: 27373286 DOI: 10.3760/cma.j.issn.0578-1426.2016.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To compare the outcomes between coronary angiography (CAG ) guided- and fractional flow reserve (FFR) guided-strategy in acute coronary syndrome (ACS) patients with moderate lesions. METHODS Totally, 249 ACS subjects with moderate lesions examined by CAG in Beijing Anzhen Hospital from July 1, 2014 to July 30, 2015 were included in the present analysis. Among them, 98 patients were further examined by FFR and 151 were not. All the patients were treated with medication either guided by CAG or by FFR. Subjects were followed up for an average of 10 months. The end points included death, nonfatal myocardial infarction (MI), target vessel revascularization (TVR), and hospitalization costs. Major adverse cardiac events (MACE) were defined as death, nonfatal MI, and TVR. RESULTS At the end of follow-up, 29 patients had MACE with 6 cases (6.5%) in the FFR-guided group, and 23 cases (16.2%) in the CAG-guided group (P=0.036). Patients treated with FFR-guided strategy had significantly lower rate of TVR than those treated with CAG-guided strategy (5.4% vs 14.8%, P=0.045). No statistical difference was observed in nonfatal MI (2.2% vs 3.5%, P=0.242) between the two groups, and no cardiac death occurred in the two groups. However, the rate of patients treated with stains (P=0.033) and the hospitalization costs (P=0.001) were significantly increased in the FFR-guided group. CONCLUSIONS FFR-guided strategy for patients with ACS results in lower TVR and MACE, but higher cost when compared with CAG-guided strategy.
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Affiliation(s)
- H F Song
- Thirty-three-ward, Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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Wang X, Yan S, Liu C, Xu Y, Wan L, Wang Y, Gao W, Meng S, Liu Y, Liu R, Xu D. Fracture risk and bone mineral density levels in patients with systemic lupus erythematosus: a systematic review and meta-analysis. Osteoporos Int 2016; 27:1413-1423. [PMID: 26753541 DOI: 10.1007/s00198-015-3449-7] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 12/01/2015] [Indexed: 12/16/2022]
Abstract
Previous studies suggested possible bone loss and fracture risk in patients with systemic lupus erythematosus (SLE). The aim of this systematic review and meta-analysis was to assess the strength of the relationship of SLE with fracture risk and the mean difference of bone mineral density (BMD) levels between SLE patients and controls. Literature search was undertaken in multiple indexing databases on September 26, 2015. Studies on the relationship of SLE with fracture risk and the mean difference of BMD levels between SLE patients and controls were included. Data were combined using standard methods of meta-analysis. Twenty-one studies were finally included into the meta-analysis, including 15 studies on the mean difference of BMD levels between SLE patients and controls, and 6 studies were on fracture risk associated with SLE. The meta-analysis showed that SLE patients had significantly lower BMD levels than controls in the whole body (weighted mean difference [WMD] = -0.04; 95 % CI -0.06 to -0.02; P < 0.001), femoral neck (WMD = -0.06; 95 % CI -0.07 to -0.04; P < 0.001), lumbar spine (WMD = -0.06; 95 % CI -0.09 to -0.03; P < 0.001), and total hip (WMD = -0.05; 95 % CI -0.06 to -0.03; P < 0.001). In addition, the meta-analysis also showed that SLE was significantly associated with increased fracture risk of all sites (relative risk [RR] = 1.97, 95 % CI 1.20-3.25; P = 0.008). Subgroup analysis by adjustment showed that SLE was significantly associated with increased fracture risk of all sites before and after adjusting for confounding factors (unadjusted RR = 2.07, 95 % CI 1.46-2.94, P < 0.001; adjusted RR = 1.22, 95 % CI 1.05-1.42, P = 0.01). Subgroup analysis by types of fracture showed that SLE was significantly associated with increased risks of hip fracture (RR = 1.99, 95 % CI 1.55-2.57; P < 0.001), osteoporotic fracture (RR = 1.36, 95 % CI 1.21-1.53; P < 0.001), and vertebral fracture (RR = 2.97, 95 % CI 1.71-5.16; P < 0.001). This systematic review and meta-analysis provides strong evidence for the relationship of SLE with bone loss and fracture risk.
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Affiliation(s)
- X Wang
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - S Yan
- Department of Anorectal Surgery, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, China
| | - C Liu
- Clinical Laboratory, First Affiliated Hospital, Nanjing Medical University, Nanjing, 210029, China
| | - Y Xu
- Occupational Safety and Health Research Center of the State Administration of Work Safety, Beijing, 100000, China
| | - L Wan
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - Y Wang
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - W Gao
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - S Meng
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - Y Liu
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China
| | - R Liu
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China.
| | - D Xu
- Department of Rheumatology and Immunology, The Affiliated Hospital of Weifang Medical University, Weifang, 261000, Shandong Province, China.
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Xu X, Zhu Y, Liang Z, Li S, Xu X, Wang X, Wu J, Hu Z, Meng S, Liu B, Qin J, Xie L, Zheng X. c-Met and CREB1 are involved in miR-433-mediated inhibition of the epithelial-mesenchymal transition in bladder cancer by regulating Akt/GSK-3β/Snail signaling. Cell Death Dis 2016; 7:e2088. [PMID: 26844702 PMCID: PMC4849142 DOI: 10.1038/cddis.2015.274] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [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: 03/21/2015] [Revised: 08/26/2015] [Accepted: 08/28/2015] [Indexed: 02/08/2023]
Abstract
Emerging evidence has suggested that microRNAs (miRNAs) have an important role in tumor development and progression by regulating diverse cellular pathways. Here we describe the function and regulation network of miR-433 in bladder cancer (BCa). miR-433 is frequently downregulated in BCa tissues compared with adjacent non-cancerous tissues. Epigenetic mechanisms may be involved in the regulation of miR-433 expression. Enforced expression of miR-433 significantly inhibits proliferation, colony formation, migration, and invasion in BCa cells. In addition, miR-433 inhibits the epithelial–mesenchymal transition (EMT) in BCa cells by regulating c-Met/Akt/GSK-3β/Snail signaling pathway. Both c-Met and CREB1 are downstream target genes of miR-433. CREB1 can also indirectly regulate c-Met/Akt/GSK-3β/Snail signaling via MITF. Furthermore, CREB1 expression is an independent prognostic factor for overall survival in patients with BCa. Finally, there appears to exist a reciprocal regulation between c-Met and miR-433/miR-409-3p. Taken together, this study reveals that miR-433-c-MET/CREB1-Akt/GSK-3β/Snail signaling is critical to EMT in BCa. Targeting the pathway described here may open up new prospects to restrict metastatic progression of BCa.
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Affiliation(s)
- X Xu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Y Zhu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Z Liang
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Li
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - X Xu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - X Wang
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - J Wu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Z Hu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - S Meng
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - B Liu
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - J Qin
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - L Xie
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - X Zheng
- Department of Urology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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Meng S, Reissig LF, Tzou CH, Meng K, Grisold W, Weninger W. Ultrasound of the Hypoglossal Nerve in the Neck: Visualization and Initial Clinical Experience with Patients. AJNR Am J Neuroradiol 2016; 37:354-9. [PMID: 26405084 DOI: 10.3174/ajnr.a4494] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [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: 04/27/2015] [Accepted: 05/22/2015] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE The hypoglossal nerve, providing motor innervation for the tongue, can be affected in many diseases of the neck and skull base, leading to dysarthria, dysphagia, and ultimately atrophy of the tongue. We determined the feasibility of direct visualization of the hypoglossal nerve in the neck with ultrasound, testing this technique on healthy volunteers and evaluating it in clinical practice. MATERIALS AND METHODS The study consisted of 4 parts: first, ultrasound-guided perineural ink injections along the course of the hypoglossal nerve at 24 sides of 12 fresh, nonembalmed cadaver necks. Subsequently, the specimens were dissected to confirm the correct identification of the nerve. The second part was examination of healthy volunteers with ultrasound and measurement of cross-sectional areas for generating reference data. The third part was scanning of healthy volunteers by 2 resident physicians with little and intermediate experience in ultrasound. Fourth was examination with ultrasound of patients with motor symptoms of the tongue. RESULTS The hypoglossal nerve was correctly identified bilaterally in all cadaveric specimens (24/24) and all volunteers (33/33). The cross-sectional area ranged from 1.9 to 2.1 mm(2). The resident physicians were able to locate the nerve in 19 of 22 cases, demonstrating that locating the nerve is reproducible and feasible even with intermediate experience in ultrasound. Finally, alterations of the hypoglossal nerve in disease states could be depicted. CONCLUSIONS Direct, reliable, and reproducible visualization of the extracranial hypoglossal nerve with ultrasound is feasible.
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Affiliation(s)
- S Meng
- From the Departments of Radiology (S.M.) Center for Anatomy and Cell Biology (S.M., L.F.R., W.W.)
| | - L F Reissig
- Center for Anatomy and Cell Biology (S.M., L.F.R., W.W.)
| | - C-H Tzou
- Division of Plastic and Reconstructive Surgery (C.-H.T.), Department of Surgery, Medical University of Vienna, Vienna, Austria
| | - K Meng
- Ear, Nose, and Throat Diseases (K.M.)
| | - W Grisold
- Neurology (W.G.), KFJ Hospital, Vienna, Austria
| | - W Weninger
- Center for Anatomy and Cell Biology (S.M., L.F.R., W.W.)
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Zhong WW, Huang YF, Gan D, Xu JY, Li H, Wang G, Meng S, Chen XL. Wetting behavior of water on silicon carbide polar surfaces. Phys Chem Chem Phys 2016; 18:28033-28039. [DOI: 10.1039/c6cp04686j] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Technically important wide band-gap semiconductors such as GaN, AlN, ZnO and SiC are crystallized in polar structures.
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Affiliation(s)
- W. W. Zhong
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Y. F. Huang
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - D. Gan
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - J. Y. Xu
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - H. Li
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - G. Wang
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - S. Meng
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - X. L. Chen
- Beijing National Laboratory for Condensed Matter Physics
- Institute of Physics
- Chinese Academy of Sciences
- Beijing 100190
- China
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Meng S, Su Z, Liu Z, Wang N, Wang Z. Rac1 contributes to cerebral ischemia reperfusion-induced injury in mice by regulation of Notch2. Neuroscience 2015; 306:100-14. [DOI: 10.1016/j.neuroscience.2015.08.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Revised: 07/07/2015] [Accepted: 08/06/2015] [Indexed: 11/16/2022]
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Meng S, Wang Y, Wang Y, Liu D, Ye C. Development of cross-priming amplification assays for rapid and sensitive detection of Aeromonas hydrophila. Lett Appl Microbiol 2015; 61:171-8. [PMID: 26077282 DOI: 10.1111/lam.12439] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 01/23/2015] [Revised: 04/07/2015] [Accepted: 05/04/2015] [Indexed: 01/14/2023]
Abstract
UNLABELLED Aeromonas hydrophila has been increasingly implicated as the aetiologic agent of various human diseases. Therefore, reliable laboratory detection and identification of this bacterium has become clinically and epidemiologically desirable. We developed a nearly instrument-free, simple molecular method for rapid detection of Aer. hydrophila using a cross-priming amplification (CPA) assay with the desA gene as the target. The desA gene is crucial for the survival and growth of Aer. hydrophila under iron starvation. The results can be visualized as colour changes without opening the reaction tubes. No false-positive results were observed for the 33 non-Aer. hydrophila strains tested to evaluate assay specificity. The limit of detection for Aer. hydrophila was approximately 200 copies of desA per reaction (on reference plasmids) and 5 × 10(3) CFU g(-1) Aer. hydrophila in simulated human stool, which is the same sensitivity as a qPCR assay. The performance of the CPA assay was also evaluated with 100 stool specimens from diarrhoea patients and 40 environmental water samples. In conclusion, the simplicity, cost-effectiveness and nearly instrument-free platform of the CPA assay make it practical for use in primary care facilities and smaller clinical laboratories. SIGNIFICANCE AND IMPACT OF THE STUDY Aeromonas hydrophila is a human pathogen that infects via exposed wounds or ingestion of contaminated water and food. In this study, a CPA-based PCR method was developed for specific, rapid, cost-effective detection of Aer. hydrophila, and the test results could be visualized without opening the reaction tubes. This is the first report on the application of the CPA method for the detection of Aer. hydrophila. This novel method could be practical for use in primary care facilities and smaller clinical laboratories.
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Affiliation(s)
- S Meng
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Y Wang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Y Wang
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - D Liu
- Pathogenic Biology Institute, University of South China, Hengyang, Hunan, China
| | - C Ye
- State Key Laboratory for Infectious Disease Prevention and Control, National Institute for Communicable Disease Control and Prevention, China CDC, Beijing, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
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Meng S, Tu Q, Murray D, Chen J. Response to letter to the editor, "BET inhibitor JQ1 blocks inflammation and bone destruction". J Dent Res 2014; 94:230. [PMID: 25389000 DOI: 10.1177/0022034514557674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] Open
Affiliation(s)
- S Meng
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Q Tu
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - D Murray
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - J Chen
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA Department of Anatomy and Cell Biology, Tufts University School of Medicine, Sackler School of Graduate Biomedical Sciences, Boston, MA, USA
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Meng S, Zhang L, Tang Y, Tu Q, Zheng L, Yu L, Murray D, Cheng J, Kim SH, Zhou X, Chen J. BET Inhibitor JQ1 Blocks Inflammation and Bone Destruction. J Dent Res 2014; 93:657-62. [PMID: 24799421 DOI: 10.1177/0022034514534261] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [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: 01/26/2014] [Accepted: 04/10/2014] [Indexed: 11/16/2022] Open
Abstract
BET proteins are a group of epigenetic regulators controlling transcription through reading acetylated histone tails and recruiting transcription complexes. They are considered as potential therapeutic targets in many distinct diseases. A novel synthetic bromodomain and extraterminal domain (BET) inhibitor, JQ1, was proved to suppress oncogene transcription and inflammatory responses. The present study was aimed to investigate the effects of JQ1 on inflammatory response and bone destruction in experimental periodontitis. We found that JQ1 significantly suppressed lipopolysaccharide (LPS)-stimulated inflammatory cytokine transcription, including interleukin (IL)-1β, IL-6, and tumor necrosis factor alpha (TNF-α), as well as receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclast markers, such as c-Fos, nuclear factor of activated T-cells, cytoplasmic, calcineurin-dependent 1 (NFATc1), tartrate-resistant acid phosphatase (TRAP) and cathepsin K in vitro. JQ1 also inhibited toll-like receptors 2/4 (TLR2/4) expression and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) phosphorylation and nuclear translocation. Chromatin immunoprecipitation and quantitative polymerase chain reaction (ChIP-qPCR) revealed that JQ1 neutralized BRD4 enrichment at several gene promoter regions, including NF-κB, TNF-α, c-Fos, and NFATc1. In a murine periodontitis model, systemic administration of JQ1 significantly inhibited inflammatory cytokine expression in diseased gingival tissues. Alveolar bone loss was alleviated in JQ1-treated mice because of reduced osteoclasts in periodontal tissues. These unprecedented results suggest the BET inhibitor JQ1 as a prospective new approach for treating periodontitis.
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Affiliation(s)
- S Meng
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - L Zhang
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Y Tang
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - Q Tu
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - L Zheng
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - L Yu
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - D Murray
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - J Cheng
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA
| | - S H Kim
- Cancer Preventive Material Development Research Center (CPMDRC) & Institute, College of Oriental Medicine, Kyunghee University, Seoul, 130-701 South Korea
| | - X Zhou
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu 610041, China
| | - J Chen
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA 02111, USA Department of Anatomy and Cell Biology, Tufts University School of Medicine, Sackler School of Graduate Biomedical Sciences, Boston, MA 02111, USA
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Calabek B, Meng S, Pollanz S, Klepetko W, Hoetzenecker K, Oberndorfer F, Grisold W. A case of Pancoast tumor: Unusual presentation and successful therapy. J Neurol Sci 2013. [DOI: 10.1016/j.jns.2013.07.2457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tan H, Ding X, Meng S, Liu C, Wang H, Xia L, Liu Z, Liang S. Antimicrobial Potential of Lycosin-I, a Cationic and Amphiphilic Peptide from the Venom of the Spider Lycosa singorensis. Curr Mol Med 2013; 13:900-10. [DOI: 10.2174/15665240113139990045] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/23/2013] [Accepted: 04/29/2013] [Indexed: 11/22/2022]
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Meng S, Cao JT, Zhang B, Zhou Q, Shen CX, Wang CQ. Downregulation of microRNA-126 in endothelial progenitor cells from diabetes patients, impairs their functional properties, via target gene Spred-1. J Mol Cell Cardiol 2012; 53:64-72. [PMID: 22525256 DOI: 10.1016/j.yjmcc.2012.04.003] [Citation(s) in RCA: 182] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2011] [Revised: 03/31/2012] [Accepted: 04/08/2012] [Indexed: 01/07/2023]
Abstract
Diabetes mellitus (DM) adversely affects the number and function of circulating endothelial progenitor cells (EPCs). Consequently, there is also a reduction in the repair mechanism of these cells, which is a critical and initiating factor in the development of diabetic vascular disease. The aim of the present study was to analyze miR expression profiles in EPCs from patients with DM and choose the most significantly regulated miR to study its possible role on EPC dysfunction and elucidate its mechanism of action. EPCs were collected from subjects with Type II DM and non-diabetic control subjects. Total RNA was harvested from EPCs, and a total of 5 candidate miRNAs were identified by microarray screening and were quantified by TaqMan real-time PCR. Lentiviral vectors expressing miR-126 and miR-126 inhibitor (anti-miR-126) were transfected into EPCs, and the EPC colony-forming capacity, proliferation activity, migratory activity, differentiation capacity, and apoptotic susceptibility were determined and Western Blotting and mRNA real-time PCR analyses were performed. To study the mechanisms, lentiviral vectors expressing Spred-1 and a short interfering RNA (siRNA) targeting Spred-1 were prepared. Five miRs were aberrantly downregulated in EPCs from DM patients. These miRs included miR-126, miR-21, miR-27a, miR-27b and miR-130a. Anti-miR-126 inhibited EPC proliferation, migration, and enhanced apoptosis. Restored miR-126 expression in EPCs from DM promoted EPC proliferation, migration, and inhibited EPC apoptosis ability. Despite this, miR-126 had no effect on EPC differentiation. miR-126 overexpression significantly downregulated Spred-1 in EPCs. The knockdown of Spred-1 expression in EPCs from DM promoted proliferation, migration, and inhibited apoptosis of the cells. The signal pathway of miR-126 effecting on EPCs is partially mediated through Ras/ERK/VEGF and PI3K/Akt/eNOS regulation. This study provides the first evidence that miR-126 is downregulated in EPCs from diabetic patients, and impairs EPCs-mediated function via its target, Spred-1, and through Ras/ERK/VEGF and PI3K/Akt/eNOS signal pathway.
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Affiliation(s)
- S Meng
- Department of Cardiology, Xinhua Hospital Affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, China
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Haibo J, Ning L, Guangren G, Xuedong W, Meng S, Jian W, Fang L, Li Y, Maomao Z, Sining H, Jingbo H, Bo Y, Shuo Z, Shaosong Z, Ik-kyung J. Different vessel response between chronic total occlusions and non-CTO lesion after Sirolimus-eluting stent implantation: a serial optical coherence tomography study. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Meng S, Yijishan Q. To determine the value of the NT-proBNP levels in patients who were diagnosed as chronic heart failure. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Meng S, Fang L, Wang CQ, Wang LS, Chen MT, Huang XH. Impact of obstructive sleep apnoea on clinical characteristics and outcomes in patients with acute coronary syndrome following percutaneous coronary intervention. J Int Med Res 2010; 37:1343-53. [PMID: 19930839 DOI: 10.1177/147323000903700509] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
This study tested whether obstructive sleep apnoea syndrome (OSAS) influenced clinical characteristics and outcomes after successful percutaneous coronary intervention (PCI) in 123 consecutive patients with acute coronary syndrome (ACS). Patients with an apnoea-hypopnea index (AHI) >or= 5 were considered as having OSAS. Carotid ultrasonography and echocardiography were performed, and C-reactive protein (CRP) and fibrinogen were measured. Co-existence of ACS and OSAS occurred in 76 patients (61.8%) and patients with OSAS had a greater interventricular septum thickness (IVST) and higher levels of CRP than non-OSAS patients. In an elderly subpopulation (>or= 75 years of age), two-vessel disease was significantly more common and fibrinogen levels were significantly higher in OSAS than non-OSAS patients. Carotid intima-media thickness (IMT) correlated with the AHI in ACS patients. In elderly ACS patients, IMT, Gensini score and fibrinogen correlated with AHI. Patients were followed up for 1 year for major adverse cardiac events (MACEs) and no significant difference in major MACEs was found after this period between OASAS and non-OSAS patients. This study indicates that OSAS is associated with inflammation and increased IVST in ACS patients after successful PCI and, in elderly ACS patients, also with CAD severity and enhanced blood coagulability.
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Affiliation(s)
- S Meng
- Xin-hua Hospital, School of Medicine, Shanghai Jiao-tong University, Shanghai, China
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