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Xuan W, Zheng L, Cao L, Miao S, Hu D, Zhu L, Zhao Y, Qiang Y, Gu X, Huang S. Machine Learning-Assisted Sensor Based on CsPbBr 3@ZnO Nanocrystals for Identifying Methanol in Mixed Environments. ACS Sens 2023; 8:1252-1260. [PMID: 36897934 DOI: 10.1021/acssensors.2c02656] [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] [Indexed: 03/11/2023]
Abstract
Methanol is a respiratory biomarker for pulmonary diseases, including COVID-19, and is a common chemical that may harm people if they are accidentally exposed to it. It is significant to effectively identify methanol in complex environments, yet few sensors can do so. In this work, the strategy of coating perovskites with metal oxides is proposed to synthesize core-shell CsPbBr3@ZnO nanocrystals. The CsPbBr3@ZnO sensor displays a response/recovery time of 3.27/3.11 s to 10 ppm methanol at room temperature, with a detection limit of 1 ppm. Using machine learning algorithms, the sensor can effectively identify methanol from an unknown gas mixture with 94% accuracy. Meanwhile, density functional theory is used to reveal the formation process of the core-shell structure and the target gas identification mechanism. The strong adsorption between CsPbBr3 and the ligand zinc acetylacetonate lays the foundation for the formation of the core-shell structure. The crystal structure, density of states, and band structure were influenced by different gases, which results in different response/recovery behaviors and makes it possible to identify methanol from mixed environments. Furthermore, due to the formation of type II band alignment, the gas response performance of the sensor is further improved under UV light irradiation.
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Affiliation(s)
- Wufan Xuan
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Lina Zheng
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Lei Cao
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Shujie Miao
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Dunan Hu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Lei Zhu
- Advanced Analysis & Computation Center, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Yulong Zhao
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Yinghuai Qiang
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Xiuquan Gu
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
| | - Sheng Huang
- Jiangsu Engineering Research Center for Dust Control and Occupational Protection, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Safety Engineering, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
- School of Materials Science and Physics, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
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Andersen P, Barksdale S, Barclay RA, Smith N, Fernandes J, Besse K, Goldfarb D, Barbero R, Dunlap R, Jones-Roe T, Kelly R, Miao S, Ruhunusiri C, Munns A, Mosavi S, Sanson L, Munns D, Sahoo S, Swahn O, Hull K, White D, Kolb K, Noroozi F, Seelam J, Patnaik A, Lepene B. Magnetic hydrogel particles improve nanopore sequencing of SARS-CoV-2 and other respiratory viruses. Sci Rep 2023; 13:2163. [PMID: 36750714 PMCID: PMC9903261 DOI: 10.1038/s41598-023-29206-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 01/31/2023] [Indexed: 02/09/2023] Open
Abstract
Presented here is a magnetic hydrogel particle enabled workflow for capturing and concentrating SARS-CoV-2 from diagnostic remnant swab samples that significantly improves sequencing results using the Oxford Nanopore Technologies MinION sequencing platform. Our approach utilizes a novel affinity-based magnetic hydrogel particle, circumventing low input sample volumes and allowing for both rapid manual and automated high throughput workflows that are compatible with Nanopore sequencing. This approach enhances standard RNA extraction protocols, providing up to 40 × improvements in viral mapped reads, and improves sequencing coverage by 20-80% from lower titer diagnostic remnant samples. Furthermore, we demonstrate that this approach works for contrived influenza virus and respiratory syncytial virus samples, suggesting that it can be used to identify and improve sequencing results of multiple viruses in VTM samples. These methods can be performed manually or on a KingFisher automation platform.
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Affiliation(s)
- P Andersen
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA.
| | - S Barksdale
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - R A Barclay
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - N Smith
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - J Fernandes
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - K Besse
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - D Goldfarb
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - R Barbero
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - R Dunlap
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - T Jones-Roe
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - R Kelly
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - S Miao
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - C Ruhunusiri
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - A Munns
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - S Mosavi
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - L Sanson
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - D Munns
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - S Sahoo
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - O Swahn
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - K Hull
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - D White
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - K Kolb
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - F Noroozi
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - J Seelam
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - A Patnaik
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA
| | - B Lepene
- Ceres Nanosciences, Inc., Manassas, VA, 20110, USA.
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Creswell R, Augustin D, Bouros I, Farm HJ, Miao S, Ahern A, Robinson M, Lemenuel-Diot A, Gavaghan DJ, Lambert BC, Thompson RN. Heterogeneity in the onwards transmission risk between local and imported cases affects practical estimates of the time-dependent reproduction number. Philos Trans A Math Phys Eng Sci 2022; 380:20210308. [PMID: 35965464 PMCID: PMC9376709 DOI: 10.1098/rsta.2021.0308] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Accepted: 05/04/2022] [Indexed: 05/02/2023]
Abstract
During infectious disease outbreaks, inference of summary statistics characterizing transmission is essential for planning interventions. An important metric is the time-dependent reproduction number (Rt), which represents the expected number of secondary cases generated by each infected individual over the course of their infectious period. The value of Rt varies during an outbreak due to factors such as varying population immunity and changes to interventions, including those that affect individuals' contact networks. While it is possible to estimate a single population-wide Rt, this may belie differences in transmission between subgroups within the population. Here, we explore the effects of this heterogeneity on Rt estimates. Specifically, we consider two groups of infected hosts: those infected outside the local population (imported cases), and those infected locally (local cases). We use a Bayesian approach to estimate Rt, made available for others to use via an online tool, that accounts for differences in the onwards transmission risk from individuals in these groups. Using COVID-19 data from different regions worldwide, we show that different assumptions about the relative transmission risk between imported and local cases affect Rt estimates significantly, with implications for interventions. This highlights the need to collect data during outbreaks describing heterogeneities in transmission between different infected hosts, and to account for these heterogeneities in methods used to estimate Rt. This article is part of the theme issue 'Technical challenges of modelling real-life epidemics and examples of overcoming these'.
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Affiliation(s)
- R. Creswell
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - D. Augustin
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - I. Bouros
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - H. J. Farm
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - S. Miao
- Mathematical Institute, University of Oxford, Oxford OX2 6GG, UK
| | - A. Ahern
- Mathematical Institute, University of Oxford, Oxford OX2 6GG, UK
| | - M. Robinson
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - A. Lemenuel-Diot
- Roche Pharmaceutical Research and Early Development, Pharmaceutical Sciences, Roche Innovation Center Basel, Basel CH-4070, Switzerland
| | - D. J. Gavaghan
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - B. C. Lambert
- Department of Computer Science, University of Oxford, Oxford OX1 3QD, UK
| | - R. N. Thompson
- Mathematics Institute, University of Warwick, Coventry CV4 7AL, UK
- Zeeman Institute for Systems Biology and Infectious Disease Epidemiology Research, University of Warwick, Coventry CV4 7AL, UK
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Zhang L, Miao S, Yang Z, Li Z, Fan Y, Yu K, Huang K, Huang Q, Xia X. [Suppression of HMGB1 inhibits neuronal autophagy and apoptosis to improve neurological deficits in rats following intracerebral hemorrhage]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:1050-1056. [PMID: 35869769 DOI: 10.12122/j.issn.1673-4254.2022.07.13] [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: 11/24/2022]
Abstract
OBJECTIVE To investigate the effect of suppressing high-mobility group box 1 (HMGB1) on neuronal autophagy and apoptosis in rats after intracerebral hemorrhage (ICH) in rats. METHODS Rat models of ICH induced by intracerebral striatum injection of 0.2 U/mL collagenase Ⅳ were treated with 1 mg/kg anti-HMGB1 mAb or a control anti-IgG mAb injected via the tail immediately and at 6 h after the operation (n=5). The rats in the sham-operated group (with intracranial injection of 2 μL normal saline) and ICH model group (n=5) were treated with PBS in the same manner after the operation. The neurological deficits of the rats were evaluated using modified neurological severity score (mNSS). TUNEL staining was used to detect apoptosis of the striatal neurons, and the expressions of HMGB1, autophagy-related proteins (Beclin-1, LC3-Ⅱ and LC3-Ⅰ) and apoptosis-related proteins (Bcl-2, Bax and cleaved caspase-3) in the brain tissues surrounding the hematoma were detected using Western blotting. The expression of HMGB1 in the striatum was detected by immunohistochemistry, and serum level of HMGB1 was detected with ELISA. RESULTS The rat models of ICH showed significantly increased mNSS (P < 0.05), which was markedly lowered after treatment with anti- HMGB1 mAb (P < 0.05). ICH caused a significant increase of apoptosis of the striatal neurons (P < 0.05), enhanced the expressions of beclin-1, LC3-Ⅱ, Bax and cleaved caspase-3 (P < 0.05), lowered the expressions of LC3-Ⅰ and Bcl-2 (P < 0.05), and increased the content of HMGB1 (P < 0.05). Treatment with anti-HMGB1 mAb obviously lowered the apoptosis rate of the striatal neurons (P < 0.05), decreased the expressions of Beclin-1, LC3-Ⅱ, Bax and cleaved caspase-3 (P < 0.05), increased the expressions of LC3-Ⅰ and Bcl-2 (P < 0.05), and reduced the content of HMGB1 in ICH rats (P < 0.05). CONCLUSION Down- regulation of HMGB1 by anti-HMGB1 improves neurological functions of rats after ICH possibly by inhibiting autophagy and apoptosis of the neurons.
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Affiliation(s)
- L Zhang
- Collaborative Innovation Center of Sichuan for Elderly Care and Health, Chengdu Medical College, Chengdu 610500, China.,Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - S Miao
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Z Yang
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Z Li
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Y Fan
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - K Yu
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - K Huang
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - Q Huang
- Department of Information, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
| | - X Xia
- Department of Neurosurgery, First Affiliated Hospital of Chengdu Medical College, Chengdu 610500, China
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Miao S, Lin Q, Sun YJ, Song YW, Li X, Pan ZQ. [Clinical analysis of penetrating keratoplasty for infants with congenital corneal opacity]. Zhonghua Yan Ke Za Zhi 2022; 58:426-432. [PMID: 35692024 DOI: 10.3760/cma.j.cn112142-20210729-00356] [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] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Objective: To investigate the corneal graft survival and related risk factors of primary penetrating keratoplasty in congenital corneal opacity infants. Methods: It was a retrospective cohort study. Data were collected from forty-two infants (51 eyes) who were aged ≤12 months and diagnosed with congenital corneal opacity in Beijing Tongren Hospital and Beijing Anzhen Hospital from January 1, 2017 to January 31, 2018. The mean age at surgery was (5.7±2.2) months (3-12 months). The mean follow-up duration was (28.6±2.6) months (24-33 months). All the patients underwent penetrating keratoplasty. The status of the corneal grafts and complications were observed and recorded during the regular follow-up. The survival probabilities were estimated by using the Kaplan-Meier and Log-rank test. The graft survival between different influence factors was analyzed by using the χ2 test. Results: The Kaplan-Meier survival rates for penetrating keratoplasty were 84.3% (43/51) at 6 months, 78.4% (40/51) at 12 months and 60.8% (31/51) at the last follow-up. The presence of corneal neovascularization was significantly correlated with graft failure (χ²=5.264, P=0.022). The graft survival differed between eyes receiving combined surgery and mere penetrating keratoplasty and in eyes with varied surgical indications (P=0.039, <0.01). Increased intraocular pressure (7 eyes, 13.7%) and persistent epithelial defects (7 eyes, 13.7%) were the most common postoperative complications, followed by complicated cataract (4 eyes, 7.8%) and posterior capsule opacification (2 eyes, 3.9%). Conclusions: The graft survival rate was satisfactory following pediatric keratoplasty although it had a tendency to decrease with the follow-up time. Corneal neovascularization was a major risk factor of graft failure. Surgical indications and procedures also had a certain effect on the graft survival.
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Affiliation(s)
- S Miao
- Department of Ophthalmology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
| | - Q Lin
- Department of Ophthalmology, Beijing Children's Hospital, Capital Medical University, National Key Discipline of Pediatrics, Ministry of Education, Beijing 100045, China
| | - Y J Sun
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - Y W Song
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - X Li
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
| | - Z Q Pan
- Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University, Beijing Institute of Ophthalmology, Beijing Key Laboratory of Ophthalmology & Visual Sciences, Beijing 100730, China
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Ye L, Chen D, Miao S, Zhu G, Zheng M, Pan C, Ye C. AB0864 A nomogram model combining inflammatory factors and MRI radiomics to assess the disease activity of the patients with axSpA in a prospective study. Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.4224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BackgroundClinical and magnetic resonance imaging (MRI) disease activity score (DAS) are measuring different aspects of axial spondyloarthritis (axSpA), they are essential in disease activity assessment. The radiomics was on facilitating readings by clinical specialists via enhancing the medical images in which subtle data differences could be distinguished.ObjectivesIf the additional information of MRI imaging can be considered as a predictor for axSpA disease activity? In this study, we sought to construct a nomogram integrating the sacroiliac joint (SIJ)- MRI radiomics features and the inflammatory biomarkers to assess disease activity and compare it with clinical disease acitivity index in axSpA patients.Methods203 patients data were collected prospectively and confirmed as axSpA were randomly divided into training (n = 143) and validation cohorts (n = 60). 1316 radiomics features were extracted from the 3.0T SIJ-MRI. A Nomogram model was constructed using multivariate logistic regression analysis Incorporating independent clinical factors and radiomics features score (Rad-score). The performance of clinics, Rad-score and nomogram models were evaluated by ROC analysis, calibration curve and decision curve analysis (DCA), and compared with the disease activity index(Ankylosing Spondylitis DAS (ASDAS)-C reactive protein (CRP), ASDAS-erythrocyte sedimentation rate (ESR), Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), Bath Ankylosing Spondylitis Functional Index (BASFI)) and Spondyloarthritis Research Consortium of Canada (SPARCC) MRI scoring system.ResultsThe Rad-score allowed a good discrimination in the training (AUC, 0.91; 95% CI, 0.85-0.96) and the validation cohort (AUC, 0.84; 95% CI, 0.73-0.96). The CRP-radiomics nomogram model also showed favorable discrimination in the training (AUC, 0.96; 95% CI, 0.93-0.99) and the validation cohort (AUC, 0.89; 95% CI, 0.80-0.98), better than BASDAI(AUC, 0.58), ASDAS-CRP(AUC, 0.72), ASDAS-ESR(AUC, 0.77), ESR(AUC, 0.72), CRP(AUC, 0.77) and BASFI(AUC, 0.73), had no statistical difference with SPARCC(AUC, 0.87). Calibration curves and DCA demonstrated the nomogram fit well (p > 0.05) and was useful for activity evaluation.ConclusionRad-score showed good discriminative ability to assess disease activity in axSpA. The nomogram can increase the efficacy for assessment axSpA disease activity, which might simplify clinical evaluation.Figure 1.Comparison of ROC curve analyses in prediction models. ROC curves of the clinical features (green curve), radiomics signature model (blue curve), and hybrid model (gold curve) of axSpA in the training cohort (A) and validation cohort (B), respectively. In addition, there are AUC of ASDAS-CRP(pink curve), ASDAS-ESR(brown curve), BASDAI(purple curve), BASFI(azure curve) and SPARCC scoring system(yellow curve) in the validation cohort (B), respectively. AUC: area under the curve; ROC: receiver operating characteristic; SPARCC: Spondyloarthritis Research Consortium of Canada; BASDAI: Bath Ankylosing Spondylitis Disease Activity Index; ASDAS: Ankylosing Spondylitis Disease Activity Score; CRP: C reactive protein; ESR: erythrocyte sedimentation rate; BASFI: Bath Ankylosing Spondylitis Disease Activity Index.References[1]Lee KH, Choi ST, Lee GY, Ha YJ, Choi SI. Method for Diagnosing the Bone Marrow Edema of Sacroiliac Joint in Patients with Axial Spondyloarthritis Using Magnetic Resonance Image Analysis Based on Deep Learning. Diagnostics (Basel). 2021;11(7).[2]Zheng Q, Liu W, Huang Y, Gao Z, Wu Y, Wang X, et al. Predictive Value of Active Sacroiliitis in MRI for Flare Among Chinese Patients with Axial Spondyloarthritis in Remission. Rheumatol Ther. 2021;8(1):411-24.AcknowledgementsNo conflict of interestDisclosure of InterestsNone declared
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Zheng M, Miao S, Chen D, Yao F, Xiao Q, Zhu G, Pan C, Lei T, Ye C, Yang Y, Ye L. POS0962 CAN RADIOMICS REPLACE SPARCC SCORING SYSTEM IN EVALUATING BONE MARROW OEDEMA OF THE SACROILIAC JOINTS IN AXIAL SPONDYLOARTHRITIS? Ann Rheum Dis 2022. [DOI: 10.1136/annrheumdis-2022-eular.647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BackgroundBone marrow oedema (BMO) of the sacroiliac joints (SIJs) is evaluated to diagnose, classify and monitor disease activity in patients with axial spondyloarthritis (axSpA). Available quantitative methodologies rely on human visual assessment, and errors can’t be completely avoided. Radiomics can extract and select discriminative and quantified features from regions of interest (ROIs), making a more accurate and objective description of BMO.ObjectivesTo develop a more objective and efficient method based on radiomics to evaluate BMO of the SIJs by magnetic resonance imaging (MRI) in patients with axSpA in comparison with Spondyloarthritis Research Consortium of Canada (SPARCC) scoring system.MethodsFrom September 2013 to July 2021, 523 patients with axSpA underwent 3.0T SIJ-MRI were included, who were randomly classified as training cohort(n=367) and validation cohort(n=156). The optimal radiomics features, selected from the 3.0T SIJ-MRI in the training cohort, were included to build the radiomics model. Four clinical risk predictors were adopted to build the clinical model. The performance of the clinical and radiomics models was evaluated by ROC analysis and decision curve analysis (DCA). Rad-scores were calculated by the radiomics model and SPARCC scores were performed to quantify the BMO of SIJs. We also assessed the correlation between Rad-score and SPARCC score.ResultsThe radiomics model, built by 15 optimal features, showed favorable discrimination about SPARCC score <2 or ≥2 both in the training (AUC, 0.91; 95% CI: 0.88-0.94) and the validation cohort (AUC, 0.89; 95% CI, 0.84-0.94). DCA confirmed that the radiomics model was clinically useful. Furthermore, Rad-score has significant correlation with SPARCC score for scoring the status of BMO (rs=0.78, P< 0.001), and moderation correlation for scoring the change (r=0.40, P=0.005).ConclusionThe radiomics can accurately assess the BMO of the SIJs in axSpA, providing an alternative to SPARCC scoring system. There was a positive correlation between Rad-score and SPARCC score.References[1]van der Heijde D, Sieper J, Maksymowych WP, Lambert RG, Chen S, Hojnik M, et al. Clinical and MRI remission in patients with nonradiographic axial spondyloarthritis who received long-term open-label adalimumab treatment: 3-year results of the ABILITY-1 trial. Arthritis Res Ther. 2018;20(1):61.[2]Landewé RB, Hermann KG, van der Heijde DM, Baraliakos X, Jurik AG, Lambert RG, et al. Scoring sacroiliac joints by magnetic resonance imaging. A multiple-reader reliability experiment. The Journal of rheumatology. 2005;32(10):2050-5.[3]Cereser L, Zabotti A, Zancan G, Quartuccio L, Cicciò C, Giovannini I, et al. Magnetic resonance imaging assessment of ASAS-defined active sacroiliitis in patients with inflammatory back pain and suspected axial spondyloarthritis: a study of reliability. Clinical and experimental rheumatology. 2021.[4]Maksymowych WP, Inman RD, Salonen D, Dhillon SS, Williams M, Stone M, et al. Spondyloarthritis research Consortium of Canada magnetic resonance imaging index for assessment of sacroiliac joint inflammation in ankylosing spondylitis. Arthritis Rheum. 2005;53(5):703-9.[5]Gillies RJ, Kinahan PE, Hricak H. Radiomics: Images Are More than Pictures, They Are Data. Radiology. 2016;278(2):563-77.Table 1.Rad-scores corresponding to different SPARCC score intervals about the status of SIJ-BMO.SPARCC scorenRad-scoreMean(sd)Median (iqr)Range0-1170-1.31(1.64)-1.39(2.16)-6.46, 2.352-61250.73(1.86)0.62(2.12)-3.08, 8.487-11552.25(1.80)2.36(1.79)-1.17, 8.3612-16432.65(2.14)2.66(3.21)-0.76, 7.3917-21383.31(2.05)3.25(2.88)-0.88, 7.5522-26263.08(1.55)3.38(2.12)-1.00, 5.3827-31253.77(1.36)3.77(1.59)0.40, 6.27>31414.10(1.51)4.32(2.28)1.00, 6.96Disclosure of InterestsNone declared
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Qiao Y, Miao S, Jin J, Mathesius U, Tang C. Differential responses of the sunn4 and rdn1-1 super-nodulation mutants of Medicago truncatula to elevated atmospheric CO2. Ann Bot 2021; 128:441-452. [PMID: 34297052 PMCID: PMC8414924 DOI: 10.1093/aob/mcab098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 07/23/2021] [Indexed: 05/27/2023]
Abstract
BACKGROUND AND AIMS Nitrogen fixation in legumes requires tight control of carbon and nitrogen balance. Thus, legumes control nodule numbers via an autoregulation mechanism. 'Autoregulation of nodulation' mutants super-nodulate are thought to be carbon-limited due to the high carbon-sink strength of excessive nodules. This study aimed to examine the effect of increasing carbon supply on the performance of super-nodulation mutants. METHODS We compared the responses of Medicago truncatula super-nodulation mutants (sunn-4 and rdn1-1) and wild type to five CO2 levels (300-850 μmol mol-1). Nodule formation and nitrogen fixation were assessed in soil-grown plants at 18 and 42 d after sowing. KEY RESULTS Shoot and root biomass, nodule number and biomass, nitrogenase activity and fixed nitrogen per plant of all genotypes increased with increasing CO2 concentration and reached a maximum at 700 μmol mol-1. While the sunn-4 mutant showed strong growth retardation compared with wild-type plants, elevated CO2 increased shoot biomass and total nitrogen content of the rdn1-1 mutant up to 2-fold. This was accompanied by a 4-fold increase in nitrogen fixation capacity in the rdn1-1 mutant. CONCLUSIONS These results suggest that the super-nodulation phenotype per se did not limit growth. The additional nitrogen fixation capacity of the rdn1-1 mutant may enhance the benefit of elevated CO2 for plant growth and N2 fixation.
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Affiliation(s)
- Yunfa Qiao
- Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, China
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University, Bundoora, Vic. 3086, Australia
| | - Shujie Miao
- Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Jian Jin
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University, Bundoora, Vic. 3086, Australia
| | - Ulrike Mathesius
- Division of Plant Sciences, Research School of Biology, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University, Bundoora, Vic. 3086, Australia
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Miao S, Qiao Y, Jin J, Wang Y, Tang C. Greater variation of bacterial community structure in soybean- than maize-grown Mollisol soils in responses to seven-year elevated CO 2 and temperature. Sci Total Environ 2021; 764:142836. [PMID: 33160664 DOI: 10.1016/j.scitotenv.2020.142836] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/12/2020] [Accepted: 10/03/2020] [Indexed: 06/11/2023]
Abstract
Changes in rhizodeposits of crops under elevated CO2 (eCO2) and elevated temperature (eT) may substantially impact on soil microbial community, which in turn affects soil carbon and nutrient cycling. However, the responses of soil bacterial community to long-term eCO2 and eT are not fully understood. A seven-year field experiment using open-top chambers was carried out with soybean (Glycine max L. Merr.) and maize (Zea mays L.) grown in a Mollisol soil under ambient CO2 (380 ppm), eT (2.1 °C increase in air temperature) and eTeCO2 (elevated temperature plus elevated CO2, 2.1 °C increase in air temperature and 700 ppm CO2). Soil DNA was extracted for Illumina MiSeq sequencing. The principal coordinate analysis showed that changes of bacterial community structure due to eT and eTeCO2 were greater in soybean- than maize-grown soils. The eT increased the relative abundances of Gaiella and Bacillus in Actinobacteria and Firmicutes, but decreased those of Nocardioides and H16 in Actinobacteria and Proteobacteria, respectively. The magnitudes of responses of seven genera sensitive to eT varied between soybean- and maize-grown soils. The eTeCO2 decreased the relative abundance of Bacillus and increased those of Gaiella, Streptomyces and Mizugakiibacter. The abundances of Gaiella, Gemmatimonas, and Mizugakiibacter under eTeCO2 were higher in soybean- than maize-grown soils. The redundancy analysis showed that soil organic C, moisture, nitrate, microbial biomass N and Olsen-P significantly affected soil bacterial community composition. All these results indicate that long-term eT increased the abundance of bacterial community and shifted their composition compared to the ambient control. In addition, the bacterial community composition under eTeCO2 was more stable in maize- than soybean-grown soils. The study suggests that warming and crop species may interactively affect the stability of bacterial community linking to the sustainability of soil eco-function in future cropping systems.
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Affiliation(s)
- Shujie Miao
- School of Applied Meteorology, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Yunfa Qiao
- School of Applied Meteorology, Nanjing University of Information Science & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Jian Jin
- Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China; Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University (Melbourne Campus), Bundoora, Vic 3086, Australia.
| | - Yanhong Wang
- Experimental Center, Guizhou University of Traditional Chinese Medicine, Guiyang 550025, China
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University (Melbourne Campus), Bundoora, Vic 3086, Australia
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Miao S, Zhao H, Pan S, Zhang N, Qiao Y. Elevated CO 2 weakens the shift in bacterial community structure in response to 8-year soybean straw return in the same experiment. Int J Phytoremediation 2020; 23:505-510. [PMID: 33016108 DOI: 10.1080/15226514.2020.1825332] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A potentially important source for soil organic carbon (SOC) in the agricultural ecosystem is straw, straw return has been shown to affect soil bacterial communities. Facing global climate change, the response of bacterial communities to straw return will change at CO2 enrichment. In this study, we investigate the changes of bacterial communities in response to straw return (+straw) at elevated CO2 (eCO2, 700 ppm) in a long-term field experiment of northeast China. Soil samples were taken in the eighth year and analyzed by high throughput sequencing. Soil bacterial communities exhibited distinct clustering according to straw return and eCO2, while eCO2 shortened the distance of clustering between straw return and not. The relative abundances of 10 genera (Acidobacteria_norank, Candidatus_Solibacter, Gaiella, Nocardioides, Streptomyces, C0119_norank, Roseiflexus, Gemmatimonas, Mizugakiibacter and Rhodanobacter) were significantly affected by the interaction of straw × eCO2. In addition, straw return significantly decreased the relative abundances of Gaiellales_norank, Blastococcus, Psedarthrobacter, and Bacillus and increased that of Geminatimonadaceae_norank, Tepidisphaeraceae, Nitrosomonadaceae_norank, and SC-I-84_norank. These differential responses of genera abundances are illustrative of the susceptibility of bacterial communities and indicate their importance in evaluating the fate of exogenous C. The Clusters of Orthologous Groups (COG) analysis showed that straw return had a greater effect on the relative abundances of COG categories than eCO2. The present results point to the need to focus more strongly on the turnover and storage of straw-C during a chronic straw return in the future.
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Affiliation(s)
- Shujie Miao
- School of Applied Meteorology, Nanjing University of Information Sciences & Technology, Nanjing, China
| | - Hongfei Zhao
- School of Applied Meteorology, Nanjing University of Information Sciences & Technology, Nanjing, China
| | - Shiqiu Pan
- School of Applied Meteorology, Nanjing University of Information Sciences & Technology, Nanjing, China
| | - Nan Zhang
- School of Applied Meteorology, Nanjing University of Information Sciences & Technology, Nanjing, China
| | - Yunfa Qiao
- School of Applied Meteorology, Nanjing University of Information Sciences & Technology, Nanjing, China
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Niu CL, Miao S, Chen X, Zhang RY. [Bronchiolar adenoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2020; 49:946-948. [PMID: 32892566 DOI: 10.3760/cma.j.cn112151-20191226-00830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C L Niu
- Clinical College of Jining Medical College, Shandong Province, Jining 272000, China
| | - S Miao
- Department of Pathology, Affiliated Hospital of Jining Medical College, Shandong Province, Jining 272000, China
| | - X Chen
- Department of Pathology, Affiliated Hospital of Jining Medical College, Shandong Province, Jining 272000, China
| | - R Y Zhang
- Department of Pathology, Affiliated Hospital of Jining Medical College, Shandong Province, Jining 272000, China
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Kuo CF, Miao S, Zheng K, Lu L, Hsieh CI, Lin C. SAT0564 BONE TEXTURE ANALYSIS WITH DEEP LEARNING IN HAND RADIOGRAPHS FOR ASSESSING THE RISK OF RHEUMATOID ARTHRITIS. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.837] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Conventional x-rays are essential to identify radiographic changes of rheumatoid arthritis (RA) in structure and bone texture. Limited evidence suggests that the bone texture analysis may quantify the radiographic changes in RA;1however, current techniques such as the fractal dimension characterize fixed texture features. Deep learning offers novel methods to ‘learn’ radiographic texture features relevant to RA.Objectives:To develop a deep learning model to assess the radiographic bone texture in the distal metacarpal bone relevant to RA.Methods:We collected 3,738 conventional hand radiographs from 2,128 individuals (RA, n = 908; non-RA, n = 1220). The second, third, and fourth metacarpal bone images were segmented using a curve Graph Convolutional Network (GCN), and the distal third was used as the input to train a texture model to classify RA. The texture model was based on the Deep Texture Encoding Network (Deep-TEN) architecture (figure 1),2which put an encoding layer on top of a pre-trained 18-layered residual network (ResNet18). The vectors produced by the model represent the orderless texture features that were used to generate a texture score for RA. Five texture models are trained using 5-fold cross-validation and are ensembled during inference by averaging the model outputs to produce the final score. We then validate the model using hand radiographs of 166 RA patients and 166 non-RA patients. Overall model performance was measured by area under the curve of the receiver operator curve (AUROC). Multivariate logistic regression was used to estimate the odds ratio (OR) and 95% confidence interval (CI) of RA.Figure 1.Schematic representation of deep learning models to extract and encode texture features for RA classification.Results:We included 140 women and 26 men with RA (mean age, 55.9±1.8 years) and 166 non-RA individuals (F: M, 140:26; mean age, 55.5 ± 1.8 years). The mean texture score was 0.49 (95% CI, 0.48–0.50) in RA patients, which is significantly higher than non-RA patients (0.42, 95% CI, 0.40–0.43; p<0.01). The AUROC of the model was 0.68. In the multivariate logistic regression model, a high texture score (>0.43) is associated with an OR (95% CI) of 3.42 (2.48–4.72) for RA, adjusted by age and sex.Conclusion:This study indicates that the texture model can delineate radiographic changes in texture relevant to RA and, coupled with automatic joint detection and segmentation, it has the potential to aid early RA diagnosis and monitor radiographic progression.References:[1]Zandieh S, Haller J, Bernt R, et al. Fractal analysis of subchondral bone changes of the hand in rheumatoid arthritis. Medicine (Baltimore) 2017;96(11):e6344.[2]Zhang H, Xue J, Dana K. Deep TEN: Texture Encoding Network. The IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2017:708-17.Disclosure of Interests:None declared
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Kuo CF, Miao S, Zheng K, Lu L, Hsieh CI, Lin C, Fan TY. OP0301 PREDICTION OF LOW BONE MINERAL DENSITY AND FRAX SCORE BY ASSESSING HIP BONE TEXTURE WITH DEEP LEARNING. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.5916] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Background:Osteoporosis is a widespread health concern associated with an increased risk of fractures in individuals with low bone mineral density (BMD). Dual-energy x-ray absorptiometry (DXA) is the gold standard to measure BMD, but methods based on the assessment of plain films, such as the digital radiogrammetry,1are also available. We describe a novel approach based on the assessment of hip texture with deep learning to estimate BMD.Objectives:To compare the BMD estimated by assessing hip texture using a deep learning model and that measured by DXA.Methods:In this study, we identified 1,203 patients who underwent DXA of left hip and hip plain film within six months. The dataset was split into a training set with 1,024 patients and a testing set with 179 patients. Hip images were obtained and regions of interest (ROI) around left hips were segmented using a tool based on the curve Graph Convolutional Network. The ROIs are processed using a Deep Texture Encoding Network (Deep-TEN) model,2which comprises the first 3 blocks of Residual Network with 18 layers (ResNet-18) model followed by a dictionary encoding operator (Figure 1). The encoded features are processed using a fully connected layer to estimate BMD. Five-fold cross-validation was conducted. Pearson’s correlation coefficient was used to assess the correlation between predicted and reference BMD. We also test the performance of the model to identify osteoporosis (T-score ≤ -2.5)Figure 1.Schematic representation of deep learning models to extract and encode texture features for estimation of hip bone density.Results:We included 151 women and 18 men in the testing dataset (mean age, 66.1 ± 1.7 years). The mean predicted BMD was 0.724 g/cm2compared with the mean BMD measured by DXA of 0.725 g/cm2(p = 0.51). Pearson’s correlation coefficient between predicted and true BMD was 0.88. The performance of the model to detect osteoporosis/osteopenia was shown in Table 1. The positive predictive value was 87.46% for a T-score ≤ -1 and 83.3% for a T-score ≤ -2.5. Furthermore, the mean FRAX® 10-year major fracture risk did not differ significantly between scores based on predicted (6.86%) and measured BMD (7.67%, p=0.52). The 10-year probability of hip fracture was lower in the predicted score (1.79%) than the measured score (2.43%, p = 0.01).Table 1.Performance matrices of the deep texture model to detect osteoporosis/osteopeniaT-score ≤ -1T-score ≤ -2.5Sensitivity91.11%(95% CI, 83.23% to 96.08%)33.33%(95% CI, 17.29% to 52.81%)Specificity86.08%(95% CI, 76.45% to 92.84%)98.56%(95% CI, 94.90% to 99.83%)Positive predictive value88.17%(95% CI, 81.10% to 92.83%)83.33%(95% CI, 53.58% to 95.59%)Negative predictive value89.47%(95% CI, 81.35% to 94.31%)87.26%(95% CI, 84.16% to 89.83%)Conclusion:This study demonstrates the potential of the bone texture model to detect osteoporosis and to predict the FRAX score using plain hip radiographs.References:[1]Zandieh S, Haller J, Bernt R, et al. Fractal analysis of subchondral bone changes of the hand in rheumatoid arthritis. Medicine (Baltimore) 2017;96(11):e6344.[2]Zhang H, Xue J, Dana K. Deep TEN: Texture Encoding Network. The IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2017:708-17.Disclosure of Interests:None declared
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Kuo CF, Zheng K, Miao S, Lu L, Hsieh CI, Lin C, Fan TY. OP0062 PREDICTIVE VALUE OF BONE TEXTURE FEATURES EXTRACTED BY DEEP LEARNING MODELS FOR THE DETECTION OF OSTEOARTHRITIS: DATA FROM THE OSTEOARTHRITIS INITIATIVE. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.2858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Osteoarthritis is a degenerative disorder characterized by radiographic features of asymmetric loss of joint space, subchondral sclerosis, and osteophyte formation. Conventional plain films are essential to detect structural changes in osteoarthritis. Recent evidence suggests that fractal- and entropy-based bone texture parameters may improve the prediction of radiographic osteoarthritis.1In contrast to the fixed texture features, deep learning models allow the comprehensive texture feature extraction and recognition relevant to osteoarthritis.Objectives:To assess the predictive value of deep learning-extracted bone texture features in the detection of radiographic osteoarthritis.Methods:We used data from the Osteoarthritis Initiative, which is a longitudinal study with 4,796 patients followed up and assessed for osteoarthritis. We used a training set of 25,978 images from 3,086 patients to develop the textual model. We use the BoneFinder software2to do the segmentation of distal femur and proximal tibia. We used the Deep Texture Encoding Network (Deep-TEN)3to encode the bone texture features into a vector, which is fed to a 5-way linear classifier for Kellgren and Lawrence grading for osteoarthritis classification. We also developed a Residual Network with 18 layers (ResNet18) for comparison since it deals with contours as well. Spearman’s correlation coefficient was used to assess the correlation between predicted and reference KL grades. We also test the performance of the model to identify osteoarthritis (KL grade≥2).Results:We obtained 6,490 knee radiographs from 446 female and 326 male patients who were not in the training sets to validate the performance of the models. The distribution of the KL grades in the training and testing sets were shown in Table 1. The Spearman’s correlation coefficient was 0.60 for the Deep-TEN and 0.67 for the ResNet18 model. Table 2 shows the performance of the models to detect osteoarthritis. The positive predictive value for Deep-TEN and ResNet18 model classification for OA was 81.37% and 87.46%, respectively.Table 1Distribution of KL grades in the training and testing sets.KL grades01234TotalTraining set1089341.9%458218.7%611423.5%332012.8%7993.1%25,978Testing set247238.1%135320.8%169626.1%77511.9%1943.0%6,490Table 2Performance matrices of the Deep-Ten and ResNet18 models to detect osteoarthritisDeep-TENResNet18Sensitivity62.29%(95% CI, 60.42%–64.13%)59.14%(95% CI, 57.24%–61.01%)Specificity90.07%(95% CI, 89.07%–91.00%)94.09%(95% CI, 93.30%–94.82%)Positive predictive value81.37%(95% CI, 79.81%–82.84%)87.46%(95% CI, 85.96%–88.82%)Negative predictive value77.42%(95% CI, 77.64%–79.65%)76.77%(95% CI, 75.93%–77.59%)Conclusion:This study demonstrates that the bone texture model performs reasonably well to detect radiographic osteoarthritis with a similar performance to the bone contour model.References:[1]Bertalan Z, Ljuhar R, Norman B, et al. Combining fractal- and entropy-based bone texture analysis for the prediction of osteoarthritis: data from the multicenter osteoarthritis study (MOST). Osteoarthritis Cartilage 2018;26:S49.[2]Lindner C, Wang CW, Huang CT, et al. Fully Automatic System for Accurate Localisation and Analysis of Cephalometric Landmarks in Lateral Cephalograms. Sci Rep 2016;6:33581.[3]Zhang H, Xue J, Dana K. Deep TEN: Texture Encoding Network. The IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2017:708-17.Disclosure of Interests:None declared
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Qiao Y, Miao S, Li Q, Jin J, Luo X, Tang C. Elevated CO 2 and temperature increase grain oil concentration but their impacts on grain yield differ between soybean and maize grown in a temperate region. Sci Total Environ 2019; 666:405-413. [PMID: 30802656 DOI: 10.1016/j.scitotenv.2019.02.149] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [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: 12/01/2018] [Revised: 02/05/2019] [Accepted: 02/09/2019] [Indexed: 06/09/2023]
Abstract
The increases in CO2 concentration and attendant temperature are likely to impact agricultural production. This study investigated the effects of elevated temperature alone and in combination with CO2 enrichment on grain yield and quality of soybean (Glycine max) and maize (Zea mays) grown in a Mollisol over five-year growing seasons. Plants were grown in open-top chambers with the ambient control, 2.1 °C increase in air temperature (eT) and eT together with 700 ppm atmospheric CO2 concentration (eTeCO2). While eTeCO2 but not eT increased the mean grain yield of soybean by 31%, eTeCO2 and eT increased the yield of maize similarly by around 25% compared to the ambient control. Furthermore, eT and eTeCO2 did not significantly affect grain protein of either species but consistently increased oil concentrations in grains of both species with eTeCO2 increasing more. The eT increased grain Fe concentration relative to the control treatment but decreased Ca concentration, while the relative concentrations of P, K, Mn and Zn varied with crop species. The elevated CO2 enlarged the eT effect on Fe concentration, but decreased the effect on Ca concentration. The results suggest that crop selection is important to maximize yield benefits and to maintain grain quality to cope with elevated CO2 and temperature of future climate change in this temperate region where the temperature is near or below the optimal temperature for crop production.
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Affiliation(s)
- Yunfa Qiao
- Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China; Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
| | - Shujie Miao
- Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Qi Li
- Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Jian Jin
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University (Melbourne Campus), Bundoora, Vic 3086, Australia
| | - Xiaosan Luo
- Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University (Melbourne Campus), Bundoora, Vic 3086, Australia.
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Miao S, Tolstopyatova EG, Kondratiev VV. Redox Processes Involving Quinones on Poly-3,4-ethylenedioxythiophene-Modified Glassy Carbon Surface. RUSS J GEN CHEM+ 2019. [DOI: 10.1134/s1070363219020166] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Yin Z, Zhang X, Sun Y, Miao S, An C. EP-1140 Retropharyngeal Lymph Node Metastasis in Hypopharyngeal Carcinoma: Analysis from Multi-center Data. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)31560-9] [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: 11/16/2022]
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Qiao Y, Miao S, Han X, Yue S, Tang C. Improving soil nutrient availability increases carbon rhizodeposition under maize and soybean in Mollisols. Sci Total Environ 2017; 603-604:416-424. [PMID: 28636976 DOI: 10.1016/j.scitotenv.2017.06.090] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2017] [Revised: 06/10/2017] [Accepted: 06/11/2017] [Indexed: 12/16/2023]
Abstract
Rhizodeposited carbon (C) is an important source of soil organic C, and plays an important role in the C cycle in the soil-plant-atmosphere continuum. However, interactive effects of plant species and soil nutrient availability on C rhizodeposition remain unclear. This experiment examined the effect of soil nutrient availability on C rhizodeposition of C4 maize and C3 soybean with contrasting photosynthetic capacity. The soils (Mollisols) were collected from three treatments of no fertilizer (Control), inorganic fertilizer only (NPK), and NPK plus organic manure (NPKM) in a 24-year fertilization field trial. The plants were labelled with 13C at the vegetative and reproductive stages. The 13C abundance of shoots, roots and soil were quantified at 0, 7days after 13C labelling, and at maturity. Increasing soil nutrient availability enhanced the C rhizodeposition due to the greater C fixation in shoots and distribution to roots and soil. The higher amount of averaged below-ground C allocated to soil resulted in greater specific rhizodeposited C from soybean than maize. Additional organic amendment further enhanced them. As a result, higher soil nutrient availability increased total soil organic C under both maize and soybean systems though there was no significant difference between the two crop systems. All these suggested that higher soil nutrient availability favors C rhizodeposition. Mean 80, 260 and 300kgfixedCha-1 were estimated to transfer into soil in the Control, NPK and NPKM treatments, respectively, during one growing season.
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Affiliation(s)
- Yunfa Qiao
- International Center for Ecology, Meteorology and Environment (IceMe), Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Shujie Miao
- International Center for Ecology, Meteorology and Environment (IceMe), Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Xiaozeng Han
- National Observation Station of Hailun Agro-ecology System, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin 150081, China.
| | - Shuping Yue
- International Center for Ecology, Meteorology and Environment (IceMe), Nanjing University of Information Sciences & Technology, No. 219 Ningliu Road, Nanjing 210044, China
| | - Caixian Tang
- Department of Animal, Plant & Soil Sciences, Centre for AgriBioscience, La Trobe University (Melbourne Campus), Bundoora, Vic 3086, Australia.
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Miao S, Xie Z, Zeng L, Zhang T, Wang X, Fang Q, Liu C. Mechanical properties, thermal stability and microstructure of fine-grained W-0.5 wt.% TaC alloys fabricated by an optimized multi-step process. Nuclear Materials and Energy 2017. [DOI: 10.1016/j.nme.2017.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Miao S, Xie Z, Zeng L, Zhang T, Fang Q, Wang X, Liu C, Luo G, Liu X. The mechanical properties and thermal stability of a nanostructured carbide dispersion strengthened W-0.5 wt.% Ta-0.01 wt.% C alloy. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.04.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Miao S, Wang ZJ, Pan L, Butler J, Moran G, Liao R. Scatter to volume registration for model-free respiratory motion estimation from dynamic MRIs. Comput Med Imaging Graph 2016; 52:72-81. [PMID: 27180910 DOI: 10.1016/j.compmedimag.2016.03.002] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 03/09/2016] [Accepted: 03/10/2016] [Indexed: 10/22/2022]
Abstract
Respiratory motion is one major complicating factor in many image acquisition applications and image-guided interventions. Existing respiratory motion estimation and compensation methods typically rely on breathing motion models learned from certain training data, and therefore may not be able to effectively handle intra-subject and/or inter-subject variations of respiratory motion. In this paper, we propose a respiratory motion compensation framework that directly recovers motion fields from sparsely spaced and efficiently acquired dynamic 2-D MRIs without using a learned respiratory motion model. We present a scatter-to-volume deformable registration algorithm to register dynamic 2-D MRIs with a static 3-D MRI to recover dense deformation fields. Practical considerations and approximations are provided to solve the scatter-to-volume registration problem efficiently. The performance of the proposed method was investigated on both synthetic and real MRI datasets, and the results showed significant improvements over the state-of-art respiratory motion modeling methods. We also demonstrated a potential application of the proposed method on MRI-based motion corrected PET imaging using hybrid PET/MRI.
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Affiliation(s)
- S Miao
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada; Medical Imaging Technology, Siemens Healthcare, Princeton, NJ 08540, USA.
| | - Z J Wang
- Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - L Pan
- Siemens Healthcare, Baltimore, MD 21205, USA
| | - J Butler
- Lawson Health Research Institute, London, ON N6C 2R5, Canada
| | - G Moran
- Siemens Canada, Oakville, ON L6H 0H6, Canada
| | - R Liao
- Medical Imaging Technology, Siemens Healthcare, Princeton, NJ 08540, USA
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Miao S, Tuysuzoglu A, Wang ZJ, Liao R. Real-time 6DoF pose recovery from X-ray images using library-based DRR and hybrid optimization. Int J Comput Assist Radiol Surg 2016; 11:1211-20. [PMID: 27038967 DOI: 10.1007/s11548-016-1387-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [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] [Received: 02/13/2016] [Accepted: 03/14/2016] [Indexed: 11/26/2022]
Abstract
PURPOSE Real-time 6 degrees of freedom (6DoF) pose recovery and tracking from X-ray images is a key enabling technology for many interventional imaging applications. However, real-time 2D/3D registration is a very challenging problem because of the heavy computation in iterative digitally reconstructed radiograph (DRR) generation. In this paper, we propose a real-time 2D/3D registration framework using library-based DRRs to achieve high computational efficiency. METHOD The proposed method pre-computes a library of canonical DRRs and reconstructs library-based DRRs (libDRRs) during registration without online rendering. The transformation parameters are decoupled to 2 geometry-relevant and 4 geometry-irrelevant ones so that canonical DRRs only need to cover the variation of 2 geometry-relevant parameters, making it practical to be pre-computed and stored. The 2D/3D registration using libDRRs is then solved as a hybrid optimization problem, i.e., continuous in geometry-irrelevant parameters while discrete in geometry-relevant parameters. RESULTS On 5 fluoroscopic sequences with 246 frames acquired during animal studies with a transesophageal echocardiography (TEE) probe in the field of view, 6DoF tracking of the TEE probe using the proposed method achieved a mean target registration error in the projection direction (mTREproj) of 0.81 mm, a success rate of 100 % (defined as mTREproj [Formula: see text]2.5 mm), and a registration frame rate of 23.1 fps on a pure CPU-based implementation executed in a single thread. CONCLUSION Using libDRRs with a hybrid optimization can significantly improve the computational efficiency (up to tenfold) for 6DoF pose recovery and tracking with little degradation in robustness and accuracy, compared to conventional intensity-based 2D/3D registration using ray casting DRRs with a continuous optimization.
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Affiliation(s)
- S Miao
- Medical Imaging Technologies, Siemens Healthcare, Princeton, NJ, 08540, USA.
| | - A Tuysuzoglu
- Medical Imaging Technologies, Siemens Healthcare, Princeton, NJ, 08540, USA
| | - Z J Wang
- Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, V6T 1Z4, Canada
| | - R Liao
- Medical Imaging Technologies, Siemens Healthcare, Princeton, NJ, 08540, USA
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Xie ZM, Liu R, Miao S, Yang XD, Zhang T, Wang XP, Fang QF, Liu CS, Luo GN, Lian YY, Liu X. Extraordinary high ductility/strength of the interface designed bulk W-ZrC alloy plate at relatively low temperature. Sci Rep 2015; 5:16014. [PMID: 26531172 PMCID: PMC4632159 DOI: 10.1038/srep16014] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 10/07/2015] [Indexed: 11/29/2022] Open
Abstract
The refractory tungsten alloys with high ductility/strength/plasticity are highly desirable for a wide range of critical applications. Here we report an interface design strategy that achieves 8.5 mm thick W-0.5 wt. %ZrC alloy plates with a flexural strength of 2.5 GPa and a strain of 3% at room temperature (RT) and ductile-to-brittle transition temperature of about 100 °C. The tensile strength is about 991 MPa at RT and 582 MPa at 500 °C, as well as total elongation is about 1.1% at RT and as large as 41% at 500 °C, respectively. In addition, the W-ZrC alloy plate can sustain 3.3 MJ/m2 thermal load without any cracks. This processing route offers the special coherent interfaces of grain/phase boundaries (GB/PBs) and the diminishing O impurity at GBs, which significantly strengthens GB/PBs and thereby enhances the ductility/strength/plasticity of W alloy. The design thought can be used in the future to prepare new alloys with higher ductility/strength.
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Affiliation(s)
- Z M Xie
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - R Liu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - S Miao
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - X D Yang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - T Zhang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - X P Wang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - Q F Fang
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - C S Liu
- Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China.,University of Science and Technology of China, Hefei 230026, China
| | - G N Luo
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Y Y Lian
- Southwestern Institute of Physics, Chengdu, China
| | - X Liu
- Southwestern Institute of Physics, Chengdu, China
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Cao J, Miao Q, Zhang J, Miao S, Bi L, Zhang S, Yang Q, Zhou X, Zhang M, Xie Y, Wang S. INHIBITORY EFFECT OF TETRAMETHYLPYRAZINE ON HEPATOCELLULAR CARCINOMA: POSSIBLE ROLE OF APOPTOSIS AND CELL CYCLE ARREST. J BIOL REG HOMEOS AG 2015; 29:297-306. [PMID: 26122217] [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: 06/04/2023]
Abstract
Hepatocellular carcinoma (HCC) is the fifth most common cancer. An important approach to control HCC is chemoprevention. This study aims at investigating the antitumor effect of Tetramethylpyrazine (TMP). Rats were injected with N-Nitrosodiethylamine (DEN) to establish HCC. Tumor development was observed. Liver function was evaluated. Apoptosis and cell cycle arrest-related makers and signaling cascades were determined by Western blot, RT-PCR and flow cytometric analysis. The administration of TMP could significantly inhibit tumor development in DEN-induced HCC rats, shown by reduced incidence of tumor, decreased number of tumor nodules and reduced maximal size of tumor. DEN-induced increase of aspartate aminotransferase, alanine aminotransferase, lactate dehydrogenase and alkaline phosphatase activities were significantly inhibited by TMP. TMP exhibited inhibitory effect on HCC through induction of apoptosis and cell cycle arrest in rats. TMP induced apoptosis through increasing Bax, decreasing Bcl-2, increasing the release of cytochrome c, and activating caspase, which consisted of the mitochondrial apoptotic pathway. TMP induced G2/M cell cycle arrest through down-regulation of cyclin B1/cdc2. In addition, inhibition of Akt and ERK signaling and the antioxidant activities of TMP may also contribute to its antitumor effect. These data provide new insight into the mechanisms underlying the antitumor effect of TMP.
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MESH Headings
- Alanine Transaminase/blood
- Alkaline Phosphatase/blood
- Animals
- Antineoplastic Agents, Phytogenic/pharmacology
- Antineoplastic Agents, Phytogenic/therapeutic use
- Antioxidants/metabolism
- Apoptosis/drug effects
- Apoptosis Regulatory Proteins/biosynthesis
- Apoptosis Regulatory Proteins/genetics
- Aspartate Aminotransferases/blood
- Cell Cycle/drug effects
- Diethylnitrosamine
- Drug Screening Assays, Antitumor
- Gene Expression Regulation, Neoplastic/drug effects
- Hepatocytes/drug effects
- Hepatocytes/pathology
- L-Lactate Dehydrogenase/blood
- Liver Neoplasms, Experimental/blood
- Liver Neoplasms, Experimental/drug therapy
- Liver Neoplasms, Experimental/genetics
- Liver Neoplasms, Experimental/pathology
- Mitochondria, Liver/drug effects
- Neoplasm Proteins/biosynthesis
- Neoplasm Proteins/blood
- Neoplasm Proteins/genetics
- Oxidation-Reduction
- Pyrazines/pharmacology
- Pyrazines/therapeutic use
- Rats
- Rats, Wistar
- Signal Transduction/drug effects
- Tumor Burden
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Affiliation(s)
- J Cao
- Department of Dermatology, Xijing Hospital, Fourth Military Medical University, Xian, China
| | - Q Miao
- Department of Pharmacy, 401 Military Hospital, Qingdao, China
| | - J Zhang
- Department of Hand Surgery, 401 Military Hospital, Qingdao, China
| | - S Miao
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - L Bi
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - S Zhang
- Department of Pharmacy, Tangdu Hospital, Fourth Military Medical University, Xian, China
| | - Q Yang
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - X Zhou
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - M Zhang
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - Y Xie
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
| | - S Wang
- Institute of Materia Medica, Fourth Military Medical University, Xian, China
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Miao S, Qiao Y, Han X, Brancher Franco R, Burger M. Frozen cropland soil in northeast China as source of N2O and CO2 emissions. PLoS One 2014; 9:e115761. [PMID: 25536036 PMCID: PMC4275265 DOI: 10.1371/journal.pone.0115761] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2014] [Accepted: 11/30/2014] [Indexed: 12/05/2022] Open
Abstract
Agricultural soils are important sources of atmospheric N2O and CO2. However, in boreal agro-ecosystems the contribution of the winter season to annual emissions of these gases has rarely been determined. In this study, soil N2O and CO2 fluxes were measured for 6 years in a corn-soybean-wheat rotation in northeast China to quantify the contribution of wintertime N2O and CO2 fluxes to annual emissions. The treatments were chemical fertilizer (NPK), chemical fertilizer plus composted pig manure (NPKOM), and control (Cont.). Mean soil N2O fluxes among all three treatments in the winter (November–March), when soil temperatures are below −7°C for extended periods, were 0.89–3.01 µg N m−2 h−1, and in between the growing season and winter (October and April), when freeze-thaw events occur, 1.73–5.48 µg N m−2 h−1. The cumulative N2O emissions were on average 0.27–1.39, 0.03–0.08 and 0.03–0.11 kg N2O–N ha−1 during the growing season, October and April, and winter, respectively. The average contributions of winter N2O efflux to annual emissions were 6.3–12.1%. In all three seasons, the highest N2O emissions occurred in NPKOM, while NPK and Cont. emissions were similar. Cumulative CO2 emissions were 2.73–4.94, 0.13–0.20 and 0.07–0.11 Mg CO2-C ha−1 during growing season, October and April, and winter, respectively. The contribution of winter CO2 to total annual emissions was 2.0–2.4%. Our results indicate that in boreal agricultural systems in northeast China, CO2 and N2O emissions continue throughout the winter.
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Affiliation(s)
- Shujie Miao
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- Department of Land, Air and Water Resources, University of California Davis, Davis, California, United States of America
| | - Yunfa Qiao
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
- Department of Land, Air and Water Resources, University of California Davis, Davis, California, United States of America
| | - Xiaozeng Han
- Key Laboratory of Mollisols Agroecology, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Harbin, China
| | - Roberta Brancher Franco
- Department of Land, Air and Water Resources, University of California Davis, Davis, California, United States of America
| | - Martin Burger
- Department of Land, Air and Water Resources, University of California Davis, Davis, California, United States of America
- * E-mail:
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Miao S, Zhao X, Cronin K. Removal notice to “Use of sugars to improve quality of dried colloidal nanoemulsions” [J. Food Eng. 123 (2014) 136–142]. J FOOD ENG 2014. [DOI: 10.1016/j.jfoodeng.2014.04.001] [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: 10/25/2022]
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Athanasiou Y, Zavros M, Arsali M, Papazachariou L, Demosthenous P, Savva I, Voskarides K, Deltas C, Pierides A, Feriozzi S, Perrin A, West M, Nicholls K, Sunder-Plassmann G, Torras J, Neumann P, Cybulla M, Cofiell R, Kukreja A, Bedard K, Yan Y, Mickle A, Ogawa M, Bedrosian C, Faas S, Meszaros K, Pruess L, Gondan M, Ritz E, Schaefer F, Testa A, Spoto B, Leonardis D, Sanguedolce MC, Pisano A, Parlongo MR, Tripepi G, Mallamaci F, Zoccali C, Trujillano D, Bullich G, Ballarin J, Torra R, Estivill X, Ars E, Kleber ME, Delgado G, Grammer TB, Silbernagel G, Kraemer BK, Maerz W, Riccio E, Pisani A, Abdalla AA, Malone AF, Winn MP, Goodship T, Cronin C, Conlon PJ, Casserly LF, Nishio S, Sakuhara Y, Matsuoka N, Yamamoto J, Nakazawa D, Nakagakaki T, Abo D, Shibazaki S, Atsumi T, Mazzinghi B, Giglio S, Provenzano A, Becherucci F, Sansavini G, Ravaglia F, Roperto RM, Murer L, Lasagni L, Materassi M, Romagnani P, Schmidts M, Christou S, Cortes C, McInerney-Leo A, Kayserili H, Zankl A, Peter S, Duncan E, Wicking C, Beales PL, Mitchison H, Magestro M, Vekeman F, Nichols T, Karner P, Duh MS, Srivastava B, Van Doorn-Khosrovani SBVW, Zonnenberg BA, Musetti C, Quaglia M, Ghiggeri GM, Fogazzi GB, Settanni F, Boldorini RL, Lazzarich E, Airoldi A, Izzo C, Giordano M, Stratta P, Garrido P, Fernandes JC, Ribeiro S, Belo L, Costa EC, Reis F, Santos-Silva A, Youssef DM, Alshal AS, Salah K, Rashed AE, Kingswood JC, Jozwiak S, Belousova E, Frost M, Kuperman R, Bebin EM, Korf B, Flamini JR, Kohrman MH, Sparagana S, Wu JY, Berkowitz N, Miao S, Segal S, Ridolfi A, Bissler JJ, Franz DN, Oud MM, Van Bon BW, Bongers EM, Hoischen A, Marcelis CL, De Leeuw N, Mol SJ, Mortier G, Knoers NV, Brunner HG, Roepman R, Arts HH, Van Eerde AM, Van Der Zwaag B, Lilien MR, Renkema KY, De Borst MH, Van Haaften G, Giles RH, Navis GJ, Knoers NVAM, Lu KC, Su SL, Gigante M, Santangelo L, Diella S, Argentiero L, Cianciotta F, Martino M, Ranieri E, Grandaliano G, Giordano M, Gesualdo L, Fernandes J, Ribeiro S, Garrido P, Sereno J, Costa E, Reis F, Santos-Silva A, Chub O, Aires I, Polidori D, Santos AR, Brito Costa A, Simoes C, Rueff J, Nolasco F, Calado J, Van Der Tol L, Biegstraaten M, Florquin S, Vogt L, Van Den Bergh Weerman MA, Hollak CE, Hughes DA, Lachmann RH, Oliveira JP, Ortiz A, Svarstad E, Terryn W, Tondel C, Waldek S, Wanner C, West ML, Linthorst GE, Kaesler N, Brandenburg V, Theuwissen E, Vermeer C, Floege J, Schlieper G, Kruger T, Xydakis D, Goulielmos G, Antonaki E, Stylianoy K, Sfakianaki M, Papadogiannakis A, Dafnis E, Mdimegh S, Ben Hadj Mbarek - Fredj I, Moussa A, Omezzine A, Zellama D, Mabrouk S, Zouari N, Hassayoun S, Chemli J, Achour A, Bouslama A, Abroug S, Spoto B, Leonardis D, Politi C, Pisano A, Cutrupi S, Testa A, Parlongo RM, D'Arrigo G, Tripepi G, Mallamaci F, Zoccali C, Mdimegh S, Ben Hadj Mbarek - Fredj I, Moussa A, Omezzine A, Mabrouk S, Zouari N, Hassayoun S, Chemli J, Zellama D, Achour A, Bouslama A, Abroug S, Hohenstein-Scheibenecker K, Schmidt A, Stylianou KG, Kyriazis J, Androvitsanea A, Tzanakakis M, Maragkaki E, Petrakis J, Stratakis S, Poulidaki R, Vardaki E, Petra C, Statigis S, Perakis K, Daphnis E, Cybulla M, West M, Nicholls K, Torras J, Neumann P, Sunder-Plassmann G, Feriozzi S, Metzinger-Le Meuth V, Taibi F, M'Baya-Moutoula E, Louvet L, Massy Z, Metzinger L, Mani LY, Sidler D, Vogt B, Nikolskaya N, Cox JA, Kingswood JC, Smirnov A, Zarayski M, Kayukov I, Karunnaya H, Sipovski V, Kukoleva L, Dobronravov V. GENETIC DISEASES AND MOLECULAR GENETICS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu162] [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: 11/14/2022] Open
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Kottgen A, Sallustio F, Cox SN, Serino G, Pesce F, De Palma G, Falchi M, Schena FP, Schena FP, Serino G, Sallustio F, Pesce F, De Palma G, Cox SN, Lai KN, Leung JC, Papagianni A, Stangou M, Goumenos D, Gerolymos M, Takahashi K, Yuzawa Y, Maruyama S, Imai E, Karras A, Mami I, Schmitt C, Nochy D, Rabant M, Hertig A, Vincent M, Thervet E, Puy H, Pallet N, Zonnenberg B, Eijkemans MJC, Reijnders L, Khosrovani S, Magestro M, Bissler JJ, Kingswood JC, Zonnenberg BA, Frost M, Belousova E, Sauter M, Berkowitz N, Miao S, Segal S, Brechenmacher T, Budde K, Franz DN. GENETICS. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu128] [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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Wang H, Mu W, Zhai J, Xing D, Miao S, Wang J, Deng Y, Wang N, Chen H, Yang H, He X, Shang H. The key role of Shenyan Kangfu tablets, a Chinese patent medicine for diabetic nephropathy: study protocol for a randomized, double-blind and placebo-controlled clinical trial. Trials 2013; 14:165. [PMID: 23738508 PMCID: PMC3679981 DOI: 10.1186/1745-6215-14-165] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 02/22/2013] [Accepted: 05/09/2013] [Indexed: 11/25/2022] Open
Abstract
Background Diabetic nephropathy (DN) is a major microvascular complication with diabetes. In China, an estimated 34.7 percent of people diagnosed with diabetes have renal complications and a further 50 percent die of renal failure. Hence, identification of alternative treatments for these patients should be given priority. The Shenyan Kangfu tablet (SYKFT) is a new formulation of an existing and widely acclaimed Chinese herbal tea for treating qi-yin deficiency syndrome. Because a considerable portion of DN patients presenting with symptoms of swelling, fatigue and weak limbs would be diagnosed with qi-yin deficiency syndrome according to the traditional Chinese medicine (TCM) diagnostic criteria, we hypothesize that SYKFT may represent a complementary drug for DN patients with the corresponding syndrome. In view of this, we have designed a trial to assess the efficacy and safety of SYKFT for patients with diabetic nephropathy exhibiting signs of qi and yin deficiency. Methods This is a multicenter, double-blind, randomized controlled trial (RCT). The total target sample size is planned at 80 participants, with a balanced (1:1) treatment allocation. The experimental intervention will be SYKFY plus irbesartan (SI regimen) and the control intervention will be a placebo plus irbesartan (PI regimen). Participants will receive two courses of medication treatment each lasting 8 weeks. The primary outcome will be the composite of the quantitative 24-hour urinary protein level and urinary albumin excretion rate (UAER). Changes in urine albumin-to-creatinine ratio (UACR) and DN staging, and TCM symptom improvement will be the secondary outcome measures. Adverse events (AEs) will be monitored throughout the trial. Discussion This study will be the first placebo-controlled RCT to assess whether SYKFT plus irbesartan will have beneficial effects on enhancing overall response rate (ORR), changing DN staging, improving clinical symptoms, and reducing the frequency of AEs for DN patients with qi-yin deficiency syndrome. The results of this trial will help to provide evidence-based recommendations for clinicians. Trial registration Chinese Clinical Trials Register, Identifier: ChiCTR-TRC-12002182
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Affiliation(s)
- Hui Wang
- Tianjin Institute of Clinical Evaluation, Tianjin University of TCM, 88 Yuquan Street, Nankai District, Tianjin 300193, China
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Powers J, Bekker P, Dairaghi D, Jennette J, Johnson D, Leleti M, Miao S, Seitz L, Wang Y, Xiao H, Schall T, Jaen J. OP0204 Characterization of the novel C5AR antagonist CCX168, a potential therapeutic for ANCA-vasculitis, rheumatoid arthritis, and other autoimmune disorders. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1887] [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: 11/03/2022]
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Tak P, Balanescu A, Tseluyko V, Bojin S, Drescher E, Dairaghi D, Miao S, Marchesin V, Jaen J, Schall T, Bekker P. OP0203 Orally-administered CCR1 antagonist CCX354-C in a phase 2 rheumatoid arthritis study:. Ann Rheum Dis 2013. [DOI: 10.1136/annrheumdis-2012-eular.1886] [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: 11/03/2022]
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Jankowska M, Walerzak A, Debska-Slizien A, Rutkowski B, Frank V, Decker E, Bachmann N, Eisenberger T, Decker C, Bolz HJ, Bergmann C, Kurt B, Paliege A, Willam C, Schwarzensteiner I, Schucht K, Neymeyer H, Sequeira-Lopez MLS, Bachmann S, Gomez RA, Eckardt KU, Kurtz A, Bissler JJ, Zonnenberg B, Frost M, Radzikowska E, Sauter M, Nonomura N, de Vries P, Lam D, Miao S, Cauwel H, Kingswood JC. Cystic kidney diseases. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [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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Guebre-Egziabher F, Alves TC, Perry RJ, Rahimi Y, Majumdar SK, Ioja S, Kumashiro N, Kahn M, Zhang D, Kibbey R, Shulman GI, Chau YY, Lee LC, Lee CT, Chen JB, Lee WC, Chiu CH, Ishimura E, Mori K, Wanibuchi H, Inaba M, Nakatani S, Bekker P, Charvat T, Miao S, Dairaghi D, Lohr L, Sullivan T, Seitz L, Miao Z, Powers J, Jaen J, Schall T, Idorn T, Knop F, Holst J, Hornum M, Feldt-Rasmussen B, Cucchiari D, Merizzoli E, Podesta M, Calvetta A, Angelini C, Badalamenti S. Diabetes - clinical. Nephrol Dial Transplant 2013. [DOI: 10.1093/ndt/gft148] [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: 11/14/2022] Open
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Szotowska M, Chudek J, Wiecek A, Adamczak M, Bossola M, DI Stasio E, Antocicco M, Silvestri P, Tazza L, Stec A, Koziol - Montewka M, Ksiazek A, Birnie K, Caskey F, Geeson AI, Dairaghi D, Johnson D, Leleti M, Miao S, Xiao H, Jennette JC, Powers JP, Seitz L, Wang Y, Jaen JC, Schall TJ, Bekker P, Arai H, Hayashi H, Sugiyama K, Yamamoto K, Koide S, Murakami K, Tomita M, Hasegawa M, Yuzawa Y, Karasavvidou D, Karasavvidou D, Kalaitzidis R, Spanos G, Pappas K, Tatsioni A, Siamopoulos K, Zhang YY, Tang Z, Chen DM, Zhang MC, Liu ZH, Milovanov Y, Milovanova L, Kozlovskaya L, Klein C, Noertersheuser P, Mensing S, Teuscher N, Meyer C, Dumas E, Awni W, Dezfoolian H, Samuelsson O, Svensson M, Yasuda Y, Kato S, Tsuboi N, Sato W, Maruyama S, Imai E, Yuzawa Y, Matsuo S, Sarafidis P, Blacklock R, Wood E, Rumjon A, Simmonds S, Fletcher-Rogers J, Elias R, Tucker B, Baynes D, Sharpe C, Vinen K, Hebbar S, Goldsberry A, Chin M, Meyer C, Audhya P. Clinical studies in CKD 1-5. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs237] [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: 11/14/2022] Open
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Valdivia Vega RP, Perez Carlos J, LI X, LI X, Xu X, Zhang W, Ren H, Chen N, Yorioka N, Doi T, Hirashio S, Arita M, Hirabayashi A, Tilkiyan E, Chonova E, Ronchev Y, Kumchev E, Giamalis P, Spartalis M, Stangou M, Tsouchnikas I, Moysiades D, Dimopoulou D, Garyfalos A, Efstratiadis G, Memmos D, Schonermarck U, Eichhorn P, Sitter T, Wendler T, Vielhauer V, Lederer S, Fechner K, Fischereder M, Bantis C, Heering P, Kouri NM, Stangou M, Schwandt C, Kuhr N, Ivens K, Rump LC, Matta V, Melis P, Conti M, Cao R, Binda V, Altieri P, Asunis AM, Catani W, Floris M, Angioi A, Congia M, Cucca F, Minerba L, Peri M, Pani A, Beck LH, Fervenza FC, Fervenza FC, Bomback AS, Ayalon R, Irazabal MV, Eirin A, Cattran DC, Appel GB, Salant DJ, Santoro D, Postorino A, Costantino G, Bellinghieri G, Savica V, Weiner M, Goh SM, Mohammad A, Eriksson P, Westman K, Selga D, Salama A, Segelmark M, Chocova Z, Hruskova Z, Mareckova H, Svobodova B, Jancova E, Bednarova V, Rysava R, Tesar V, Hruskova Z, Jancova E, Hanzal V, Zamboch K, Grussmannova M, Svojanovsky J, Klaboch J, Kubisova M, Sevcik J, Olsanska R, Sobotkova M, Becvar R, Nemec P, Kodeda M, Jilek D, Chocova Z, Tesar V, Hussain M, Dhaygude A, Cartery C, Cartery C, Huart A, Plaisier E, Bongard V, Montastruc F, Ronco P, Pourrat J, Chauveau D, Prasad N, Gurjar D, Bhadauria D, Sharma RK, Gupta A, Kaul A, Jain M, Venning M, Brown N, Bruce I, Noor S, Dhaygude A, Bekker P, Potarca A, Dairaghi D, Miao S, Powers JP, Jaen JC, Schall TJ, Kalavrizioti D, Kalavrizioti D, Gerolymos M, Komninakis D, Rodi M, Mouzaki A, Kalliakmani P, Goumenos D, Choi BS, Choi BS, Park CW, Kim YS, Yang CW, Sun IO, Qin W, Xie L, Tan C, Qin W, Mian W, Fu P, Tan C, Kaminskyy V, Bantis C, Heering P, Kouri NM, Kuhr N, Schwandt C, Ivens K, Rump LC, Hao X, Hao X, Ren H, Wang W, Chen N, Cengiz C, Nur C, Nurdan Y, Selman G, Pinar T, Mehmet T, Lale S, Caliskan S, Shinzawa M, Yamamoto R, Nagasawa Y, Oseto S, Mori D, Niihata K, Fukunaga M, Yamauchi A, Tsubakihara Y, Rakugi H, Isaka Y, Chen JS, Lin YF, Lin WY, Shu KH, Chen HH, Wu CJ, Yang CS, Tseng TL, Zaza G, Bernich P, Lupo A, Panizo N, Rivera F, Lopez Gomez JM, Regn SROG, Ceresini G, Vaglio A, Urban ML, Corradi D, Usberti E, Palmisano A, Buzio C, Vaglio A, Zineb H, Ramdani B, Marques LPJ, Rioja LDS, Rocco R, Nery ACF, Novaes BC, Bridoux F, Sicard A, Labatut D, Touchard G, Sarkozy C, Vanhille P, Callard P, Essig M, Provot F, Nony A, Ronco P, Karras A, Agustin CP, M Belen HR, Carmen CP, Eliana O, Elisa P, Luis P, Alberto MC, Javier N, Isabel F, Cao R, Conti M, Atzeni A, Fois A, Piras D, Maxia S, Angioi A, Binda V, Melis P, Sau G, Pili G, Floris M, Asunis AM, Porcu M, Derudas D, Angelucci E, Ledda A, La Nasa G, Pani A, Ossareh S, Asgari M, Savaj S, Ataipour Y, Abdi E, Malakoutian T, Rajaa R, Berkchi FZ, Haffane L, Squalli Z, Rouass L, Al Hamany Z, Ezzaitouni F, Benamar L, Bayahya R, Ouzeddoun N, Gao-Yuan H, Yao X, Xin C, Zhen C, Yong-Chun G, Qing-Wen W, Hui-Ping C, Da-XI J, De-Hua G, Wei-Xin H, Zhi-Hong L, Rajaa R, Fatima Zahra B, Laila H, Zoubair S, Rouass L, Al Hamany Z, Ezzaitouni F, Benamar L, Bayahya R, Naima O, Smykal-Jankowiak K, Niemir Z, Polcyn-Adamczak M, Szramka-Pawlak B, Zaba R, Zhang C, Zhang C, Ren H, MA Y, Wang W, Zhang W, Shen P, Chen N, Ouyang Y, Ouyang Y, Pan X, Wang Z, Feng X, Shen P, Ren H, Ni L, Zhang W, Chen N. Primary and secondary glomerulonephritis II. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs239] [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: 11/14/2022] Open
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Zonnenberg B, Budde K, Kingswood C, Frost M, Belousova E, Radzikowska E, Sauter M, Nonomura N, Brakemeier S, De Vries P, Klimovsky J, Shah G, Miao S, Lincy J, Bissler J, Walther B, Roel G, Maarten R. Renal cancer and the kidney in cancer. Nephrol Dial Transplant 2012. [DOI: 10.1093/ndt/gfs208] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hanefeld M, Schell E, Gouni-Berthold I, Melichar M, Vesela I, Johnson D, Miao S, Sullivan T, Jaen J, Bekker P, Schall T. Effizienz und Sicherheit eines neuen Chemokin Rezeptor 2 Antagonist, CCX140-B bei Patienten mit Typ 2 Diabetes. DIABETOL STOFFWECHS 2012. [DOI: 10.1055/s-0032-1314576] [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: 10/28/2022]
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Frost M, Budde K, Kingswood J, Zonnenberg B, Belousova E, Radzikowska E, Sauter M, Nonomura N, Brakemeier S, de Vries P, Sahmoud T, Shah G, Miao S, Gray D, Bissler J. Everolimus for the Treatment of Angiomyolipoma in Patients with Tuberous Sclerosis Complex or Sporadic Lymphangioleiomyomatosis: Results from EXIST-2 (P04.188). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p04.188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Sullivan TJ, Dairaghi DJ, Krasinski A, Miao Z, Wang Y, Zhao BN, Baumgart T, Berahovich R, Ertl LS, Pennell A, Seitz L, Miao S, Ungashe S, Wei Z, Johnson D, Boring L, Tsou CL, Charo IF, Bekker P, Schall TJ, Jaen JC. Characterization of CCX140-B, an orally bioavailable antagonist of the CCR2 chemokine receptor, for the treatment of type 2 diabetes and associated complications. ACTA ACUST UNITED AC 2012:jpet.111.190918. [DOI: 10.1124/jpet.111.190918] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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41
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Zhang H, Peng P, Miao S, Zhao Y, Mao F, Wang L, Bai Y, Xu Z, Wei S, Shi C. Recombinant Mycobacterium smegmatis expressing an ESAT6-CFP10 fusion protein induces anti-mycobacterial immune responses and protects against Mycobacterium tuberculosis challenge in mice. Scand J Immunol 2010; 72:349-57. [PMID: 20883320 DOI: 10.1111/j.1365-3083.2010.02448.x] [Citation(s) in RCA: 34] [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: 01/01/2023]
Abstract
The currently used vaccine against tuberculosis, Bacille Calmette-Guérin (BCG), has variable efficacy, so new vaccine development is crucial. In this study, we evaluated a recombinant vaccine prepared from non-pathogenic Mycobacterium smegmatis (rMS) that expresses a fusion of early secreted antigenic target 6-kDa antigen (ESAT6) and culture filtrate protein 10 (CFP10). C57BL/6 mice were immunized with the rMS expressing the ESAT6-CFP10 fusion protein (rM.S-e6c10) or with BCG. The mice in the rM.S-e6c10 group had a significantly higher titre of anti-ESAT6-CFP10 antibodies than did animals in the BCG or saline groups. Spleen cells from rM.S-e6c10-immunized mice exhibited a cytotoxic response to ESAT6 and CFP10-expressed target cells, but spleen cells from animals in the other groups did not. Levels of IFN-γ and IL-2 production by purified T cells from spleens were significantly higher in rM.S-e6c10 group than in BCG group. Finally, after M. tuberculosis (MTB)-challenged mice, dramatic reduction in the numbers of MTB colony-forming units (CFUs) in the lungs was observed for the mice immunized with the rMS. The protective efficacy of rM.S-e6c10 and BCG vaccination was similar based on measures of MTB burden and lung pathology. Our data indicate that the recombinant M. smegmatis vaccine expressing the ESAT6-CFP10 fusion protein has potential in clinic application.
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Affiliation(s)
- H Zhang
- Laboratory Animal Center, Fourth Military Medical University, Xi'an, China
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42
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Wang Y, Guan X, Fok KL, Li S, Zhang X, Miao S, Zong S, Koide SS, Chan HC, Wang L. A novel member of the Rhomboid family, RHBDD1, regulates BIK-mediated apoptosis. Cell Mol Life Sci 2009; 65:3822-9. [PMID: 18953687 DOI: 10.1007/s00018-008-8452-0] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Rhomboid family members are widely conserved and found in all three kingdoms of life. They are serine proteases and serve important regulatory functions. In the present study, a novel gene highly expressed in the testis, RHBDD1, is shown to be a new member of the Rhomboid family, participating in the cleavage of BIK, a proapoptotic member of the Bcl-2 family. The RHBDD1-involved proteolytic modification is upstream of the BIK protein degradation pathway. Mutagenesis studies show that the amino acid residues glycine142 and serine144 of RHBDD1 are crucial for its activity in cleaving BIK at a site located in the transmembrane region. Overexpression or knock-down of RHBDD1 in HEK 293T cells can reduce or enhance BIK-mediated apoptosis, respectively. The present findings suggest that, by acting as a serine protease, RHBDD1 modulates BIK-mediated apoptotic activity.
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Affiliation(s)
- Y Wang
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Tsinghua University 5 Dong Dan San Tiao, Beijing, 100005, China
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Pehkonen K, Roos Y, Miao S, Ross R, Stanton C. State transitions and physicochemical aspects of cryoprotection and stabilization in freeze-drying of Lactobacillus rhamnosus GG (LGG). J Appl Microbiol 2008; 104:1732-43. [DOI: 10.1111/j.1365-2672.2007.03719.x] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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DeLaune RD, Jugsujinda A, Gambrell RP, Miao S. Metal concentrations and trace metal Al and Fe ratios in soil of the Chenier Plain, southwest Louisiana coastal zone. J Environ Sci Health A Tox Hazard Subst Environ Eng 2008; 43:300-312. [PMID: 18205062 DOI: 10.1080/10934520701792837] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Soil baseline metal concentrations were determined in 220 surface soil samples collected from the Chenier Plain area of southwest coastal Louisiana. Regression relationships between Al, Fe, and various metals were calculated from the data set. The use of these relationships to identify enhanced metal contents in the Chenier Plain soils is presented. Statistical analyses showed an average Al concentration of 1.6% with a maximum concentration of 4.8% and a minimum concentration of 1.3 mg kg(-1). Al concentration in the sediments was positively correlated at the 1% significance level to Cu (r = 0.577**), Pb (r = 0.936**), Cr (r = 0.969**), Ni (r = 0.830**), Cd (r = 0.617**), and Zn (r = 0.506**), but only a 5% significance correlation was found with Mn (r = 0.148*). Average Fe concentration was 1.2% with a maximum value of 3.4% and a minimum concentration of 9.3 mg kg(-1). Fe concentration in the sediments was positively correlated at the 1% significance level to Cu (r = 0.586**), Pb (r = 0.847**), Cr (r = 0.875**), Ni (r = 0.932**), Cd (r = 0.803**), Zn (r = 0.551**), and Mn (r = 0.479**). These relationships were used to evaluate sites for metal contamination. Data from two known contaminated sites, Capitol Lake (Baton Rouge, LA) and Bayou Trepagnier (LA), fell well outside the prediction limits developed with the Chenier Plain Al and Fe metal regression lines for Cr and Zn. Pb and Cd at Capitol Lake were also elevated beyond the metal/Al prediction developed for the Chenier Plain, but the prediction was not out of range when using the metal/Fe regression. Samples from additional sites with no known metal contamination fell within the predictive limits of the regression equations except for Cd and Pb at some sites. Data presented showed that metal/Al and metal/Fe regression relationships can be used as a tool for identifying areas of potential metal contamination in the coastal zone, but must be regionally correlated.
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Affiliation(s)
- R D DeLaune
- Wetland Biogeochemistry Institute, School of the Coast and Environment, Louisiana State University, Baton Rouge, Louisiana 70803, USA.
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Sun JY, Zhu MZ, Wang SW, Miao S, Xie YH, Wang JB. Inhibition of the growth of human gastric carcinoma in vivo and in vitro by swainsonine. Phytomedicine 2007; 14:353-9. [PMID: 17097281 DOI: 10.1016/j.phymed.2006.08.003] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2006] [Accepted: 06/21/2006] [Indexed: 05/12/2023]
Abstract
In Europe, swainsonine has been studied widely for prevention of metastasis and cancer therapy. In order to investigate the effects and mechanisms of swainsonine on the human gastric carcinoma SGC-7901 cell, we carried out in vivo and in vitro experiments. After treatment with swainsonine, an effective dose and IC50 value of swainsonine for SGC-7901 cells were examined by MTT assay. Cell-cycle distribution and apoptotic rates were analyzed using FCM, and [Ca2+]i was measured using LSCM. The expression of p53, c-myc and Bcl-2 were determined using an immunocytochemical method. Simultaneously, 50 mice were divided randomly into five groups. Three groups were administrated swainsonine at dose of 3, 6 and 12 mg/kg body wt., two control groups were administrated N.S. 20 ml/kg body wt. and 5-Fu 20 mg/kg body wt., respectively, by intraperitoneal injection. The inhibition rate was calculated and pathological sections were observed. The growth of SGC-7901 cell is inhibited by swainsonine in vitro, with an IC50 value at 24 h of 0.84 microg/ml, and complete inhibition concentration is 6.2 microg/ml. After treatment with swainsonine at the concentrations of 0.5, 1.5 and 4.5 microg/ml for 24 h, the expression of apoptosis inhibiting gene p53 and bcl-2 decreases, and the apoptotic trigger gene c-myc increases markedly (p<0.05), as well as [Ca2+]i overloading, SGC-7901 cell is induced to apoptosis in the end. It is also found that the percentages of S phase are 38.8%, 39.7% and 29.6%, respectively (20.0% in control group and 23.2% in 5-Fu group). The rates of inhibition were 13.2%, 28.9%, 27.3%, respectively, when the nude mice were administered swainsonine (p<0.05 or 0.01). The structure of the tumor showed hemorrhage, necrosis and inflammatory cell infiltration. We therefore conclude that swainsonine could inhibit cell proliferation in vitro and the growth of human gastric carcinoma in vivo. The mechanisms of swainsonine-induced apoptosis may relate to [Ca2+]i overloading and the expression of apoptosis-related genes.
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Affiliation(s)
- J-Y Sun
- Institute of Materia Medica, The Fourth Military Medical University, Xi'an, 710032 Shaanxi, China
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Chen X, Adrian J, Cushing T, Dimaio H, Liang L, Mayorga V, Miao S, Peterson MG, Powers JP, Spector F, Stein C, Wright M, Xu D, Ye Q, Jaen J. SAR studies on a novel series of human cytomegalovirus primase inhibitors. Bioorg Med Chem Lett 2007; 17:2188-92. [PMID: 17329103 DOI: 10.1016/j.bmcl.2007.01.109] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2006] [Accepted: 01/24/2007] [Indexed: 11/29/2022]
Abstract
A novel series of imidazolylpyrimidines were found to possess inhibitory activity against the human CMV UL70 primase. Extensive SAR studies on an HTS lead led to potent, orally bioavailable compounds with anti-CMV IC(50) values of 150 nM in both viral yield and viral DNA replication assays and with a much reduced cytotoxicity compared to marketed treatments ganciclovir and cidofovir.
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Affiliation(s)
- X Chen
- Amgen Inc., 1120 Veterans Boulevard ASF2-3, South San Francisco, CA 94080, USA.
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Abstract
DnaJ/Hsp40 (heat shock protein 40) proteins have been preserved throughout evolution and are important for protein translation, folding, unfolding, translocation, and degradation, primarily by stimulating the ATPase activity of chaperone proteins, Hsp70s. Because the ATP hydrolysis is essential for the activity of Hsp70s, DnaJ/Hsp40 proteins actually determine the activity of Hsp70s by stabilizing their interaction with substrate proteins. DnaJ/Hsp40 proteins all contain the J domain through which they bind to Hsp70s and can be categorized into three groups, depending on the presence of other domains. Six DnaJ homologs have been identified in Escherichia coli and 22 in Saccharomyces cerevisiae. Genome-wide analysis has revealed 41 DnaJ/Hsp40 family members (or putative members) in humans. While 34 contain the typical J domains, 7 bear partially conserved J-like domains, but are still suggested to function as DnaJ/ Hsp40 proteins. DnaJA2b, DnaJB1b, DnaJC2, DnaJC20, and DnaJC21 are named for the first time in this review; all other human DnaJ proteins were dubbed according to their gene names, e.g. DnaJA1 is the human protein named after its gene DNAJA1. This review highlights the progress in studying the domains in DnaJ/Hsp40 proteins, introduces the mechanisms by which they interact with Hsp70s, and stresses their functional diversity.
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Affiliation(s)
- X-B Qiu
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.
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Abstract
DnaJ/Hsp40 (heat shock protein 40) proteins have been preserved throughout evolution and are important for protein translation, folding, unfolding, translocation, and degradation, primarily by stimulating the ATPase activity of chaperone proteins, Hsp70s. Because the ATP hydrolysis is essential for the activity of Hsp70s, DnaJ/Hsp40 proteins actually determine the activity of Hsp70s by stabilizing their interaction with substrate proteins. DnaJ/Hsp40 proteins all contain the J domain through which they bind to Hsp70s and can be categorized into three groups, depending on the presence of other domains. Six DnaJ homologs have been identified in Escherichia coli and 22 in Saccharomyces cerevisiae. Genome-wide analysis has revealed 41 DnaJ/Hsp40 family members (or putative members) in humans. While 34 contain the typical J domains, 7 bear partially conserved J-like domains, but are still suggested to function as DnaJ/ Hsp40 proteins. DnaJA2b, DnaJB1b, DnaJC2, DnaJC20, and DnaJC21 are named for the first time in this review; all other human DnaJ proteins were dubbed according to their gene names, e.g. DnaJA1 is the human protein named after its gene DNAJA1. This review highlights the progress in studying the domains in DnaJ/Hsp40 proteins, introduces the mechanisms by which they interact with Hsp70s, and stresses their functional diversity.
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Affiliation(s)
- X-B Qiu
- State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100005, PR China.
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Cushing TD, Adrian J, Chen X, DiMaio H, Doughan B, Flygare J, Liang L, Mayorga V, Miao S, Mellon H, Peterson MG, Powers JP, Spector F, Stein C, Wright M, Xu D, Ye Q, Jaen J. Discovery of a novel series of inhibitors of human cytomegalovirus primase. Bioorg Med Chem Lett 2006; 16:4879-83. [PMID: 16814545 DOI: 10.1016/j.bmcl.2006.06.066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2006] [Revised: 06/16/2006] [Accepted: 06/16/2006] [Indexed: 11/16/2022]
Abstract
Infection by human cytomegalovirus (hCMV) remains a potent threat to susceptible people throughout the world. We have discovered a series of imidazolyl-pyrimidine compounds, which were found to be irreversible inhibitors of the hCMV UL70 primase based on results from radiolabeling and SAR studies. Two promising analogs are described that rival ganciclovir and cidofovir in antiviral potency and possess improved cytotoxicity profiles.
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Affiliation(s)
- T D Cushing
- Amgen Inc., 1120 Veterans Boulevard, South San Francisco, CA 94080, USA.
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