626
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Margariti A, Winkler B, Karamariti E, Tsai T, Zeng L, Hu Y, Xu Q. 20 Direct reprogramming fibroblasts into endothelial cells. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300920b.20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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627
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Campagnolo P, Kirton JP, Tsai T, Di Bernardini E, Xu Q. 50 Embryonic and IPS cell-derived cKit+ cells represent a novel vascular progenitor cell population. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300920b.50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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628
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Xiao Q, Pepe A, Wang G, Luo Z, Zeng L, Ye S, Xu Q. 51 PLA2g7 mediates smooth muscle cell differentiation from stem cells. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300920b.51] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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629
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Luo Z, Xiao Q, Wang W, Xu Q. 6 Differentiation of human embryonic stem cells towards the endothelial lineage involves microRNAs. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300920b.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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630
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Margariti A, Kirton JP, Yin X, Karamariti E, Mayr M, Hu Y, Zeng L, Xu Q. 21 Proteomic analysis of iPS and embryonic stem cells identifies alternate vascular cell differentiation properties. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300920b.21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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631
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Wang P, Xu Q, Lan X, Li Z, Li M, Fang X, Li M, Chen H. A novel EcoRII PCR-RFLP detecting genetic variation of goat <i>NF1-C2</i> gene and its association with milk yield (Brief Report). Arch Anim Breed 2011. [DOI: 10.5194/aab-54-224-2011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. The transcription factor nuclear factor1-C2 (NF1-C2) mediates the action of prolactin in the mammary gland. Research on the molecular genetic mechanism of model system have indicated that the NF1-C2 gene plays an important role for the activation of several mammary gland specific genes (Nilsson et al. 2006). Moreover, the effects of prolactin on milk production traits have been reported in ruminant (Seriwatanachai et al. 2008). NF1-C2 may have a similar function in goat. To our knowledge polymorphisms of NF1-C2 gene have not been described in animals. Here a SNP of the caprine NF1-C2 was detected and a EcoRII PCR-RFLP was derived, that allowed to clearly detect NF1-C2 genotypes. Further investigation was conduct to evaluate the association between polymorphisms and milk yield at different lactation stages.
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632
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Mittal V, Zhang J, Yang X, Xu Q. E3 Analysis for Crude and Vacuum Distillation System. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201100242] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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633
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Xue J, Grimm J, Lesley H, LaCouture T, Xu Q, Goldman W. Dose-volume Effects on Brainstem Dose Tolerance in Radiosurgery. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1519] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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634
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Xu Q, Chen Y, Grimm J, LaCouture T. Comparison of Monte Carlo and Ray-Tracing Dose Calculation for CyberKnife based Accelerated Partial Breast Irradiation (APBI). Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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635
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Xu Q, Deacon A, Wilson IA. Community nominated projects at the Joint Center for Structural Genomics. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311085084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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636
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Miller MD, Axelrod HL, Chiu HJ, Das D, Kumar A, Trame CB, van den Bedem H, Xu Q, Deacon AM. Cases of twinning at the Joint Center for Structural Genomics. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311083358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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637
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Norstrand JA, Xu Q. Social Capital and Health Outcomes Among Older Adults in China: The Urban-Rural Dimension. THE GERONTOLOGIST 2011; 52:325-34. [DOI: 10.1093/geront/gnr072] [Citation(s) in RCA: 110] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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638
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Xu Q, Feng L, Sha R, Seeman NC, Chaikin PM. Subdiffusion of a sticky particle on a surface. PHYSICAL REVIEW LETTERS 2011; 106:228102. [PMID: 21702635 DOI: 10.1103/physrevlett.106.228102] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Indexed: 05/31/2023]
Abstract
Conventional diffusion (ΔR2(t))=2Dt gives way to subdiffusion (ΔR2(t))∼t(μ), 0<μ<1 when the waiting time distribution φ(τ) is nonintegrable. We have studied a model system, colloidal particles functionalized with DNA "sticky ends" diffusing on a complementary coated surface. We observe a crossover from subdiffusive to conventional behavior for (ΔR2(t)) and φ(τ) as temperature is increased near the particle-surface melting temperature consistent with a simple Gaussian distribution of sticky ends. Our results suggest that any system with randomness in its binding energy should exhibit subdiffusive behavior as it unbinds. This will strongly affect the kinetics of self-assembly.
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639
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Xue J, Grimm J, LaCouture T, Xu Q, Asbell S, Pahlajani N, Kramer N, Chen Y, Goldman W. SU-E-T-892: Calculation Uncertainty in CyberKnife Dosimetric Parameters of Brainstem. Med Phys 2011. [DOI: 10.1118/1.3612856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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640
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Grimm J, LaCouture T, Asbell S, Kramer N, Pahlajani N, Chen Y, Xu Q, Croce R, Xue J. SU-E-T-883: Clinical Application of Monte Carlo for SBRT: Mediastinal Lung. Med Phys 2011. [DOI: 10.1118/1.3612847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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641
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Grimm J, Das I, Cheng C, Grimm S, LaCouture T, Asbell S, Kramer N, Pahlajani N, Chen Y, Xu Q, Xue J. MO-D-BRB-07: Phantom Validation and Clinical Application of Monte Carlo for Small Field SBRT. Med Phys 2011. [DOI: 10.1118/1.3612912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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642
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Xu Q, Grimm J, An L, Xue J, Asbell S, LaCouture T, Chen Y. SU-C-BRB-02: A Phase Resolved Fiducial Setup Scheme for Stereotactic Body Radiation Therapy (SBRT). Med Phys 2011. [DOI: 10.1118/1.3611468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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643
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Jing D, Cai J, Shen G, Huang J, Li F, Li J, Lu L, Luo E, Xu Q. The preventive effects of pulsed electromagnetic fields on diabetic bone loss in streptozotocin-treated rats. Osteoporos Int 2011; 22:1885-95. [PMID: 20976595 DOI: 10.1007/s00198-010-1447-3] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2010] [Accepted: 09/28/2010] [Indexed: 01/26/2023]
Abstract
UNLABELLED The present study was the first report demonstrating that pulsed electromagnetic field (PEMF) could partially prevent bone strength and architecture deterioration and improve the impaired bone formation in streptozotocin-induced diabetic rats. The findings indicated that PEMF might become a potential additive method for inhibiting diabetic osteopenia or osteoporosis. INTRODUCTION Diabetes mellitus (DM) can cause various musculoskeletal abnormalities. Optimal therapeutic methods for diabetic bone complication are still lacking. It is essential to develop more effective and safe therapeutic methods for diabetic bone disorders. Pulsed electromagnetic field (PEMF) as an alternative noninvasive method has proven to be effective for treating fracture healing and osteoporosis in non-diabetic conditions. However, the issue about the therapeutic effects of PEMF on diabetic bone complication has not been previously investigated. METHODS We herein systematically evaluated the preventive effects of PEMF on diabetic bone loss in streptozotocin-treated rats. Two similar experiments were conducted. In each experiment, 16 diabetic and eight non-diabetic rats were equally assigned to the control, DM, and DM + PEMF group. DM + PEMF group was subjected to daily 8-h PEMF exposure for 8 weeks. RESULTS In experiment 1, three-point bending test suggested that PEMF improved the biomechanical quality of diabetic bone tissues, evidenced by increased maximum load, stiffness, and energy absorption. Microcomputed tomography analysis demonstrated that DM-induced bone architecture deterioration was partially reversed by PEMF, evidenced by increased Tb.N, Tb.Th, BV/TV, and Conn.D and reduced Tb.Sp and SMI. Serum OC analysis indicated that PEMF partially prevented DM-induced decrease in bone formation. In experiment 2, no significant difference in the bone resorption marker TRACP5b was observed. These biochemical findings were further supported by the dynamic bone histomorphometric parameters BFR/BS and Oc.N/BS. CONCLUSIONS The results demonstrated that PEMF could partially prevent DM-induced bone strength and architecture deterioration and improve the impaired bone formation. PEMF might become a potential additive method for inhibiting diabetic osteoporosis.
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644
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Xu Q, An L, Pahlajani N, LaCouture T, Chen Y. SU-E-T-509: Automatic Detection of Non-Rigid Fiducial Motion for Stereotactic Body Radiation Therapy (SBRT) of Moving Tumors. Med Phys 2011. [DOI: 10.1118/1.3612462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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645
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Yeo I, Xu Q, Chen Y, Jung J, Kim J. SU-E-T-410: Clinical Application of Dose Reconstruction Based on Full-Scope Monte Carlo Calculations. Med Phys 2011. [DOI: 10.1118/1.3612364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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646
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Yang X, Xu Q, Li K. Safety-Considered Proactive Flare Minimization Strategy under Ethylene Plant Upsets. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201000447] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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647
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Gao B, Rudneva M, McGarrity KS, Xu Q, Prins F, Thijssen JM, Zandbergen H, van der Zant HSJ. In situ transmission electron microscopy imaging of grain growth in a platinum nanobridge induced by electric current annealing. NANOTECHNOLOGY 2011; 22:205705. [PMID: 21444963 DOI: 10.1088/0957-4484/22/20/205705] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We report an in situ transmission electron microscopy (TEM) imaging of grain growth in a Pt nanobridge induced by a high electric current density. The change in morphology at the nanoscale was recorded in real time together with the electrical characterization of the Pt nanobridge. We find a drop in the differential resistance as the voltage across the bridge is increased; TEM inspection shows that this coincides with thermally induced grain growth, indicating that a reduction of grain boundary scattering is the cause of the resistance decrease.
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648
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Xu Y, Xu Q, Liu F, Ni S, WU F, Ye X, Mougin B, Meng X, Du X, Cai S. Peripheral blood mRNA signature for colorectal cancer screening. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e14030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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649
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Malik SM, Farrell AT, Xu Q, Sridhara R, Pazdur R. Gender, age, and ethnic representation in non-small cell lung cancer (NSCLC) U.S. registration trials: FDA review. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.1530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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650
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Xu Q, Dalic A, Fang L, Kiriazis H, Ritchie RH, Sim K, Gao XM, Drummond G, Sarwar M, Zhang YY, Dart AM, Du XJ. Myocardial oxidative stress contributes to transgenic β₂-adrenoceptor activation-induced cardiomyopathy and heart failure. Br J Pharmacol 2011; 162:1012-28. [PMID: 20955367 DOI: 10.1111/j.1476-5381.2010.01043.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND AND PURPOSE While maintaining cardiac performance, chronic β-adrenoceptor activation eventually exacerbates the progression of cardiac remodelling and failure. We examined the adverse signalling pathways mediated by nicotinamide adenine dinucleotide phosphate (NADPH) oxidase and reactive oxygen species (ROS) after chronic β₂-adrenoceptor activation. EXPERIMENTAL APPROACH Mice with transgenic β₂-adrenoceptor overexpression (β₂-TG) and non-transgenic littermates were either untreated or treated with an antioxidant (N-acetylcysteine, NAC) or NADPH oxidase inhibitors (apocynin, diphenyliodonium). Levels of ROS, phosphorylated p38 mitogen-activated protein kinase (MAPK), pro-inflammatory cytokines and collagen content in the left ventricle (LV) and LV function were measured and compared. KEY RESULTS β₂-TG mice showed increased ROS production, phosphorylation of p38 MAPK and heat shock protein 27 (HSP27), expression of pro-inflammatory cytokines and collagen, and progressive ventricular dysfunction. β₂-adrenoceptor stimulation similarly increased ROS production and phosphorylation of p38 MAPK and HSP27 in cultured cardiomyocytes. Treatment with apocynin, diphenyliodonium or NAC reduced phosphorylation of p38 MAPK and HSP27 in both cultured cardiomyocytes and the LV of β₂-TG mice. NAC treatment (500 mg·kg⁻¹ ·day⁻¹) for 2 weeks eliminated the up-regulated expression of pro-inflammatory cytokines and collagen in the LV of β₂-TG mice. Chronic NAC treatment to β₂-TG mice from 7 to 10 months of age largely prevented progression of ventricular dilatation, preserved contractile function (fractional shortening 37 ± 5% vs. 25 ± 3%, ejection fraction 52 ± 5% vs. 32 ± 4%, both P < 0.05), reduced cardiac fibrosis and suppressed matrix metalloproteinase activity. CONCLUSION AND IMPLICATIONS β₂-adrenoceptor stimulation provoked NADPH oxidase-derived ROS production in the heart. Elevated ROS activated p38 MAPK and contributed significantly to cardiac inflammation, remodelling and failure.
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