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Pierquet M, Craciunescu O, Steffey B, Song H, Oldham M. On the Feasibility of Verification of 3D Dosimetry Near Brachytherapy Sources Using PRESAGE/Optical-CT. ACTA ACUST UNITED AC 2010; 250:120911-120915. [PMID: 22235233 DOI: 10.1088/1742-6596/250/1/012091] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
PURPOSE: The feasibility of using the PRESAGE/Optical-CT system for 3D dosimetry verification around a brachytherapy source is investigated. METHOD AND MATERIALS: Brachytherapy dose distributions were obtained by irradiation of cylindrical PRESAGE volumes 6cm in diameter by 8cm height with a GammaMed 12i Ir-192 HDR unit (Varian Medical Systems). A narrow channel on the central axis was created by setting a steel catheter in the Presage during manufacture, enabling measurements close to the source (~3mm). RESULTS: Comparison of dose line profiles shows good agreement between PRESAGE and verified calculated dose calculation, in both high and low dose regions. CONCLUSION: The PRESAGE/Optical-CT shows good potential in verification of 3D dose distributions around brachytherapy sources.
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Lin QB, Wang TJ, Song H, Li B. Analysis of isothiazolinone biocides in paper for food packaging by ultra-high-performance liquid chromatography–tandem mass spectrometry. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2010; 27:1775-81. [DOI: 10.1080/19440049.2010.521896] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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353
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Song H, Fraanje R, Schitter G, Kroese H, Vdovin G, Verhaegen M. Model-based aberration correction in a closed-loop wavefront-sensor-less adaptive optics system. OPTICS EXPRESS 2010; 18:24070-24084. [PMID: 21164754 DOI: 10.1364/oe.18.024070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
In many scientific and medical applications, such as laser systems and microscopes, wavefront-sensor-less (WFSless) adaptive optics (AO) systems are used to improve the laser beam quality or the image resolution by correcting the wavefront aberration in the optical path. The lack of direct wavefront measurement in WFSless AO systems imposes a challenge to achieve efficient aberration correction. This paper presents an aberration correction approach for WFSlss AO systems based on the model of the WFSless AO system and a small number of intensity measurements, where the model is identified from the input-output data of the WFSless AO system by black-box identification. This approach is validated in an experimental setup with 20 static aberrations having Kolmogorov spatial distributions. By correcting N=9 Zernike modes (N is the number of aberration modes), an intensity improvement from 49% of the maximum value to 89% has been achieved in average based on N+5=14 intensity measurements. With the worst initial intensity, an improvement from 17% of the maximum value to 86% has been achieved based on N+4=13 intensity measurements.
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Sun Z, Zhang J, Song H, Zhang X, Li Y, Tian M, Liu Y, Zhao Y, Li C. Concomitant increases in spectrum and level of drug resistance in Mycobacterium tuberculosis isolates. Int J Tuberc Lung Dis 2010; 14:1436-i. [PMID: 20937184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023] Open
Abstract
OBJECTIVE To determine the drug resistance spectrum and resistance levels of extensively drug-resistant (XDR-) and multidrug-resistant tuberculosis (MDR-TB) and TB resistant to either rifampicin (RMP, R) or isoniazid (INH, H; R/H-DR). DESIGN Of 142 drug-resistant clinical isolates examined, 13 were XDR-TB, 66 were MDR-TB and 63 were R/H-DR. The drug resistance spectrum was tested by the absolute two-concentration method. Minimum inhibitory concentrations (MICs) were determined for the strains by agar dilution method on Löwenstein-Jensen slants. RESULTS The drug resistance spectrum of XDR-TB, MDR-TB and R/H-DR TB isolates ranged from 4 to 9, 2 to 6 and 1 to 5 drugs, respectively. Over half of all XDR-TB (53.8%), MDR-TB (66.7%) and R/H-DR (54.0%) isolates were resistant to two other anti-tuberculosis drugs; 38.5% of XDR-TB, 24.2% of MDR-TB and 28.6% of R/H-DR TB isolates were resistant to ≥ 3 additional anti-tuberculosis drugs in addition to those originally defined, demonstrating that the MIC values and the proportions of strains with higher MICs followed a trend of XDR-TB > MDR-TB > R/H-DR for INH, RMP, ofloxacin and ethambutol. CONCLUSION XDR-TB, MDR-TB and R/H-DR TB isolates exhibited both increasingly broader resistance spectra and a higher percentage of strains with high MICs to more frequently resistant drugs, which might be related to patterns of TB chemotherapy.
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355
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Lee E, Song H. Plant growth promotion by isolated strains of Rhodopseudomonas faecalis. J Biotechnol 2010. [DOI: 10.1016/j.jbiotec.2010.09.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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356
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Song H, Zhao H, Qu Y, Sun Q, Zhang F, Du Z, Liang W, Qi Y, Yang P. Carbon monoxide releasing molecule-3 inhibits concurrent tumor necrosis factor-α- and interleukin-1β-induced expression of adhesion molecules on human gingival fibroblasts. J Periodontal Res 2010; 46:48-57. [PMID: 20860588 DOI: 10.1111/j.1600-0765.2010.01307.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND AND OBJECTIVE Carbon monoxide releasing molecule-3 (CORM-3) is a newly reported compound that has shown anti-inflammatory effects in a number of cells. In this study, we aimed to investigate the influence of CORM-3 on concurrent tumor necrosis factor-α (TNF-α)- and interleukin (IL)-1β-induced expression of adhesion molecules on human gingival fibroblasts (HGF). MATERIAL AND METHODS HGF were cultured from the explants of normal gingival tissues. Cells were costimulated with TNF-α and IL-1β in the presence or absence of CORM-3 for different periods of time. The expression of adhesion molecules, nuclear factor-kappaB (NF-κB) and phosphorylated p38 was studied using western blotting. RT-PCR was applied to check the expression of the adhesion molecules at the mRNA level. The activity of NF-κB was analysed using a reporter gene assay. RESULTS CORM-3 inhibited the up-regulation of intercellular adhesion molecule 1, vascular cell adhesion molecule 1 and endothelial leukocyte adhesion molecule in HGF after costimulation with TNF-α and IL-1β, which resulted in the decreased adhesion of peripheral blood mononuclear cells to these cells. Sustained activation of the NF-κB pathway by costimulation with TNF-α and IL-1β was suppressed by CORM-3, which was reflected by a reduced NF-κB response element-dependent luciferase activity and decreased nuclear NF-κB-p65 expression. CORM-3 inhibited MAPK p38 phosphorylation in response to stimulation with proinflammatory cytokines. CONCLUSION The results of this study bode well for the application of CORM-3 as an anti-inflammatory agent to inhibit NF-κB activity and to suppress the expression of adhesion molecules on HGF, which suggests a promising potential for CORM-3 in the treatment of inflammatory periodontal disease.
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Kim JB, Ju MH, Yun SC, Jung SH, Chung CH, Choo SJ, Lee TY, Song H, Lee JW. Mitral valve replacement with or without a concomitant Maze procedure in patients with atrial fibrillation. Heart 2010; 96:1126-31. [DOI: 10.1136/hrt.2010.192435] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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358
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Min SY, Song JM, Kim JH, Jang MK, Kim YJ, Song H, Kim DH, Lee JW, Kang DH, Song JK. Geometric changes after tricuspid annuloplasty and predictors of residual tricuspid regurgitation: a real-time three-dimensional echocardiography study. Eur Heart J 2010; 31:2871-80. [DOI: 10.1093/eurheartj/ehq227] [Citation(s) in RCA: 95] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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359
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McMahon R, Zhuang T, Steffey B, Song H, Craciunescu O. SU-GG-T-58: Commissioning of Varian Ring & Tandem HDR Applicators: Reproducibility and Inter-Observer Variability of Dwell Position Offsets. Med Phys 2010. [DOI: 10.1118/1.3468444] [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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360
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Song H, Oldham M, Yin F. SU-GG-T-362: Is Distance-Dependent Energy Correction Needed for Dosimetric Measurements Surrounding Brachytherapy Sources? Med Phys 2010. [DOI: 10.1118/1.3468759] [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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361
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Kim S, Song H, Samei E, Yin F, Yoshizumi T. SU-GG-I-14: A Method to Estimate Cone-Beam CT Dose Index and Cone-Beam Dose Length Product. Med Phys 2010. [DOI: 10.1118/1.3468047] [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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362
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Zhuang T, Steffey B, Song H, Craciunescu O. SU-GG-T-69: Comparison of Three Optimization Methods of BrachyVision™ for IORT Using HDR and HAM Applicator. Med Phys 2010. [DOI: 10.1118/1.3468455] [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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363
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Zhang R, Wang Z, Wang H, Song H, Zhang N, Fang M. Optimal pulmonary artery perfusion mode and perfusion pressure during cardiopulmonary bypass. THE JOURNAL OF CARDIOVASCULAR SURGERY 2010; 51:435-442. [PMID: 20523296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM Reducing lung injury during cardiopulmonary bypass (CPB) is important for patients' recovery. The present study was designed to evaluate the effects of pulmonary artery perfusion pressure on the extent of lung injury during CPB in an animal model. METHODS Twenty healthy mongrel dogs were randomly divided into four groups, including a control group and three perfusion groups designed to simulate clinical cardiopulmonary bypass-induced lung injury. During pulmonary ischemia and cardiopulmonary bypass, protective perfusions were performed using different perfusion pressures (15-20, 25-30, and 40-45 mmHg), while animals in the control group were not perfused. After pulmonary reperfusion, the changes in pulmonary function and tissue histopathology were determined. RESULTS Compared with the control group, lung compliance, oxygenation and vascular resistance after reperfusion were significantly improved in both low- and moderate-pressure groups. The malonaldehyde concentration, neutrophil sequestration ratio, and expression of ICAM-1 were also decreased significantly in the two groups. However, there were no significant differences in any of these parameters between the control group and the high-pressure group. Histopathological examination demonstrated that there were obvious inflammatory cell infiltration and tissue damage in the control and high-pressure groups, which was prevented in the low- and moderate-pressure groups. CONCLUSION The perfusion pressure is an important factor that determines the extent of lung protection, and the use of pressures below 30 mmHg is optimal, with the safest and most effective range being 15-20 mmHg.
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Park K, Kim J, Do Y, Song H, Won K. Usefulness of preoperative F-18 FDG-PET/CT for detection of signet ring cell carcinoma of the stomach: Correlation with pathologic findings including immunohistochemical staining. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14621] [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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365
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Kim J, Do Y, Park K, Kwon K, Song H, Won K, Kang Y. SUVmax of F-18 FDG-PET/CT in advanced gastric cancer with tubular adenocarcinoma: Correlation with pathologic findings including immunohistochemical staining. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14566] [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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366
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Lee K, Kim M, Hyun M, Song H, Kim J, Park K, Lee W, Cho Y, Bae S, Ryoo H. Cancer pain management with hydromorphone OROS in Korean cancer patients: Evaluation of its clinical usefulness in reduction of breakthrough pain medication frequency: Multicenter, prospective, open-label study. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e19566] [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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367
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Bae S, Ryoo H, Kim M, Lee KH, Kim J, Do Y, Song H, Chae Y, Lee W, Baek J. Phase II study of fixed dose-rate infusion of gemcitabine and UFT combination chemotherapy in patients with advanced bile duct cancer: Daegu Gyeoungbuk Oncology Group. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e14547] [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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368
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Jung S, Park K, Kim J, Do Y, Kwon K, Song H, Koh S. Prevalence of emotional distress, anxiety, and depression and their impacts on pain in terminally ill cancer patients. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e19642] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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369
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Moran M, Castrucci W, Ahmad M, Song H, Lund M, Mani S, Chamberlain D, Higgins S. Clinical Utility of the Modified Segmental Boost Technique for Treatment of the Pelvis and Inguinal Nodes. Int J Radiat Oncol Biol Phys 2010; 76:1026-36. [DOI: 10.1016/j.ijrobp.2009.02.066] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2008] [Revised: 02/19/2009] [Accepted: 02/27/2009] [Indexed: 11/29/2022]
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370
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Zou L, Li L, Song H, Morris G. Improving the capacitive deionisation performance by optimising pore structures of the electrodes. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2010; 61:1227-33. [PMID: 20220245 DOI: 10.2166/wst.2010.879] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
In this paper, three types of ordered mesoporous carbons (OMCs) were synthesised by an original template method and a modified sol-gel process involving nickel salts. The effects of pore arrangement pattern (ordered and random), and pore size distribution (mesoporous and microporous) on the desalination performance were investigated by comparing mesoporous carbons with activated carbons (ACs). It is found that the mesoporous carbons prepared by addition of nickel salts demonstrated higher specific capacitances than mesoporous carbons without nickel salts and the activated carbon electrodes. Their electrosorptive deionisation properties were also compared in a dilute NaCl solution (conductivity 100 microS cm(-1)), the amount of adsorbed ions are measured by a flow though apparatus in the laboratory. It is found that the amounts of the adsorbed ions are 15.9 micromol g(-1) for OMCs involving nickel in the synthesis process, 10.3 micromol g(-1) for OMC not involving nickel salts and 4.7 micromol g(-1) for ACs.
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Lin QB, Xue YY, Song H. Determination of the Residues of 18 Carbamate Pesticides in Chestnut and Pine Nut by GPC Cleanup and UPLC-MS-MS. J Chromatogr Sci 2010; 48:7-11. [DOI: 10.1093/chromsci/48.1.7] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
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372
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Liu DP, Song H, Xu Y. A common gain of function of p53 cancer mutants in inducing genetic instability. Oncogene 2009; 29:949-56. [PMID: 19881536 DOI: 10.1038/onc.2009.376] [Citation(s) in RCA: 152] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
The critical tumor suppressor p53 is mutated in over half of all human cancers. The majority of p53 cancer mutations are missense mutations, which can be classified into contact mutations that directly disrupt the DNA-binding of p53 but have modest impact on p53 conformation and structural mutations that greatly disrupt p53 conformation. Many p53 cancer mutants, including the hot spot mutations (R175H, R248W and R273H), not only lose p53-dependent tumor-suppressor activities, but also acquire new oncogenic activities to promote cancer. Therefore, it is critical to elucidate the gain of oncogenic function of p53 cancer mutants. Using humanized p53-mutant knock-in mouse models, we have identified a gain of oncogenic function shared by the most common p53 contact mutants (R273H and R248W) and structural mutant (R175H). This gain of function inactivates Mre11/ATM-dependent DNA damage responses, leading to chromosomal translocation and defective G(2)/M checkpoint. Considering the critical roles of ATM in maintaining genetic stability and therapeutic responses to many cancer treatments, the identification of this common gain of function of p53 cancer mutants will have important implication on the drug resistance of a significant portion of human cancers that express either the contact or structural p53 cancer mutants.
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Pearce CL, Near AM, Van Den Berg DJ, Ramus SJ, Gentry-Maharaj A, Menon U, Gayther SA, Anderson AR, Edlund CK, Wu AH, Chen X, Beesley J, Webb PM, Holt SK, Chen C, Doherty JA, Rossing MA, Whittemore AS, McGuire V, DiCioccio RA, Goodman MT, Lurie G, Carney ME, Wilkens LR, Ness RB, Moysich KB, Edwards R, Jennison E, Kjaer SK, Hogdall E, Hogdall CK, Goode EL, Sellers TA, Vierkant RA, Cunningham JM, Schildkraut JM, Berchuck A, Moorman PG, Iversen ES, Cramer DW, Terry KL, Vitonis AF, Titus-Ernstoff L, Song H, Pharoah PDP, Spurdle AB, Anton-Culver H, Ziogas A, Brewster W, Galitovskiy V, Chenevix-Trench G. Erratum: Validating genetic risk associations for ovarian cancer through the International Ovarian Cancer Association Consortium. Br J Cancer 2009. [PMCID: PMC2778538 DOI: 10.1038/sj.bjc.6605431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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374
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Li C, Han L, Levin AM, Song H, Yan S, Wang Y, Wang Y, Meng D, lv S, Ji Y, Xu X, Liu X, Wang Y, Zhou L, Miao Z, Mi QS. Multiple single nucleotide polymorphisms in the human urate transporter 1 (hURAT1) gene are associated with hyperuricaemia in Han Chinese. J Med Genet 2009; 47:204-10. [DOI: 10.1136/jmg.2009.068619] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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375
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Qin GY, Majumder A, Song H, Heinz U. Energy and momentum deposited into a QCD medium by a jet shower. PHYSICAL REVIEW LETTERS 2009; 103:152303. [PMID: 19905626 DOI: 10.1103/physrevlett.103.152303] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/18/2009] [Indexed: 05/28/2023]
Abstract
For a hard parton moving through a dense QCD medium, we compute self-consistently the energy loss and the fraction deposited into the medium due to showering and rescattering of the shower, assuming weak coupling between probe and medium. The same transport coefficients thus determine both the energy loss and its deposition into the medium. This allows a parameter free calculation of the latter once the former are computed or measured. We compute them for a weakly interacting medium. Assuming a short thermalization time for the deposited energy, we determine the medium's hydrodynamical response and obtain a conical pattern that is strongly enhanced by showering.
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