276
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Sun J, Sundsfjord A, Song X. Enterococcus faecalis from patients with chronic periodontitis: virulence and antimicrobial resistance traits and determinants. Eur J Clin Microbiol Infect Dis 2011; 31:267-72. [DOI: 10.1007/s10096-011-1305-z] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2011] [Accepted: 05/19/2011] [Indexed: 01/12/2023]
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277
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Song X, Deb N, Moulding H, Xue T. SU-E-T-891: A Study of RapidArc SBRT Spine Treatment Plans. Med Phys 2011. [DOI: 10.1118/1.3612855] [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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278
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Mohan R, Mirkovic D, Titt U, Song X, Li H, Zhu X, Gillin M. SU-E-T-687: Experimental Assessment of the Accuracy of a Semi-Empirical Model and a Monte Carlo System for Proton Dose Calculations for Highly Inhomogeneous Media. Med Phys 2011. [DOI: 10.1118/1.3612649] [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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279
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Cheng Y, Zhang L, Zhang H, Zhou C, Han B, Zhang Y, Huang C, Chang JH, Song X, Liang J, Liang H, Hu J, Yu SY, Chen J, Wang J, Pan H, Carides A, Chitkara D. The effect of a 3-day oral aprepitant regimen on the prevention of CINV over standard therapy in Chinese patients receiving high-dose cisplatin. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.9105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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280
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Lu S, Zhang L, Wu YL, Zhang Y, Zhou C, Chen G, Hou M, Song X, Wang J. An observational study on the efficacy and safety of zoledronic acid (ZA) in patients with non-small cell lung cancer (NSCLC) patients with bone metastases with high urine n-telopeptide (uNTX) at diagnosis (C-TONG 0801). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e19541] [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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281
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Xie X, Guo F, Song X, Zhang Q, Kong X, Li C, Li Z, Qu S, Liu Z, Piao Y, Zheng Z. Efficacy and toxicity of sorafenib in patients with advanced renal cell cancer in northeast China: A multicenter study. J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.e15046] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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282
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Zhang L, Shenglin M, Song X, Han B, Cheng Y, Huang C, Yang S, Liu X, Yun-Peng L, Wang M, Zhang X. Efficacy, tolerability, and biomarker analyses from a phase III, randomized, placebo-controlled, parallel group study of gefitinib as maintenance therapy in patients with locally advanced or metastatic non-small cell lung cancer (NSCLC) (INFORM; C-TONG 0804). J Clin Oncol 2011. [DOI: 10.1200/jco.2011.29.15_suppl.lba7511] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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283
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Shi Y, Chen J, Li Z, Zhang Z, Yu H, Sun K, Wang X, Song X, Wang Y, Zhen Y, Yang T, Lou K, Zhang Y, Zhang G, Hu Y, Ji J, Hui R. C10ORF97 is a novel tumor-suppressor gene of non-small-cell lung cancer and a functional variant of this gene increases the risk of non-small-cell lung cancer. Oncogene 2011; 30:4107-17. [PMID: 21499297 DOI: 10.1038/onc.2011.116] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In an earlier study we showed that C10ORF97 (chromosome-10, open reading frame-97) was expressed in almost all of the tissues and cell lines tested, and that it inhibited the growth of seven tumor cell lines, including two lung carcinoma cell lines (A549 and PG). Here, we show that C10ORF97 is downregulated in non-small-cell lung cancer (NSCLC) tissue compared with normal lung tissue. Overexpression of C10ORF97 significantly suppressed human lung carcinoma A549 cell growth (proliferation and anchorage-independent growth in soft agar) and motility (migration and adhesion). This tumor-suppressive function of C10ORF97 was also verified in vivo. We further found that C10ORF97 caused G(1) arrest of A549 cells and modulated the expression level of several cell-cycle regulators (such as CDK2, cyclin-E and p27). These effects of C10ORF97 were mediated by physical association between C10ORF97 and Jun-activating domain-binding protein-1 (JAB1), and blocking of JAB1-mediated translocation of p27 from the nucleus to the cytoplasm. Together, these results indicated that C10ORF97 functions as a novel tumor suppressor by modulating several key G(1)/S-regulatory proteins by interacting with JAB1. These findings led us to hypothesize that a single-nucleotide polymorphism (SNP) in the C10ORF97 gene that affects its expression might be associated with susceptibility to NSCLC. SNP216 C>T (rs2297882) in the C10ORF97 Kozak sequence was identified, and allele T of SNP216 suppressed C10ORF97 expression in vitro and in vivo. Furthermore, the TT genotype of SNP216 was associated with an increased risk of NSCLC (adjusted odds ratio=1.73 (95% confidence interval: 1.33-2.25), P=4.6 × 10(-5)). These data indicated that C10ORF97 is a tumor suppressor of NSCLC progression and C10ORF97-SNP216 may serve as a predictor of NSCLC.
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284
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Sun YG, Song X, Wang L, Yu W, Wang YQ, Xiong G, Guo MY, Gao EJ. Four Ln(III) coordination polymers based on 1H-benzimidazole-5,6-dicarboxylate ligand: Synthesis, crystal structure, and luminescence. RUSS J COORD CHEM+ 2011. [DOI: 10.1134/s1070328411040087] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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285
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Watson T, MacDonald D, Song X, Bromfield K, Stevenson A, Campos J, Sande J, DeBiasi R. Molecular Detection of Adenovirus in Pediatric Hematopoietic Stem Cell Transplant Recipients. Biol Blood Marrow Transplant 2011. [DOI: 10.1016/j.bbmt.2010.12.343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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286
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Xun S, Song X, Grass ME, Roseguo DK, Liu Z, Battaglia VS, Liu G. Improved Initial Performance of Si Nanoparticles by Surface Oxide Reduction for Lithium-Ion Battery Application. ACTA ACUST UNITED AC 2011. [DOI: 10.1149/1.3559765] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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287
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Song X, Yeap K, Zhu J, Belnoue J, Sebastiani M, Bemporad E, Zeng K, Korsunsky A. Residual stress measurement in thin films using the semi-destructive ring-core drilling method using Focused Ion Beam. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.proeng.2011.04.362] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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288
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Dent SF, Frechette DAM, Verma S, Clemons MJ, Wheatley-Price PF, Gertler SZ, Song X, Asmis TR, Graham NA, Paquet L. Abstract P2-12-02: How Common Is Sexual Dysfunction among Women with Early Stage Breast Cancer? Cancer Res 2010. [DOI: 10.1158/0008-5472.sabcs10-p2-12-02] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Despite the high prevalence of sexual problems (50—90%) among women with early stage breast cancer (EBC), relatively little is known about the prevalence of clinically significant post-systemic treatment sexual dysfunction (SD) and its impact on quality of life (QOL). According to the American Psychiatric Association (APA), SD consists of sexual problems causing marked personal distress. While 40% of healthy US women report sexual problems, only 12% experience SD. No study has applied the APA criterion to document the prevalence of SD in women with EBC who have completed systemic therapy. The goal of this study is to address this gap and to examine some correlates (anxious predispositions and menopausal symptoms) of SD and the impact of SD on QOL. Methods: Post-menopausal women receiving cancer therapy for EBC or early colon cancer were approached for this study. Sexual problems were evaluated with the Female Sexual Function Index while sexual distress was assessed with the Female Sexual Distress Scale. QOL was measured with FACT-B, using its endocrine symptoms subscale (ES) to assess menopausal symptoms. Spielberger State-Trait Anxiety Inventory measured anxious predispositions. Participants completed questionnaires upon completion of adjuvant chemotherapy but prior to initiation of hormonal therapy (estrogen sensitive EBC). SD was assessed using the APA classification. Results: Between January 2009 and May 1 2010, 70 EBC patients entered this study. The proportion of women (mean age 61) reporting 1 or more sexual problems was high (93%) and included problems with 1) frequency (66%) and level (65%) of sexual desire, 2) frequency (66%), level (52%) and satisfaction (43%) of arousal, 3) frequency (21%) of vaginal dryness and difficulty becoming lubricated (47%) during sexual activity, 4) satisfaction with their sexual life (30%) and 5) pain during intercourse (18%). However, the APA criterion identified only 30% of patients as having SD. Multiple logistic regression showed that anxiety predispositions and menopausal symptoms predicted SD (p< .01). Women classified as having SD had higher anxiety scores (No SD=34 SD=41, p<.05) as well as higher levels of menopausal symptoms (i.e, lower ES scores; No SD= 62 SD=54, p<.01). QOL was negatively impacted by SD (r=-0.42, p<.01). Discussion: Despite the fact that an overwhelming majority of patients had sexual difficulties, the APA distress criterion identified far fewer patients (30 %) with SD. Nevertheless, we found a high prevalence rate of SD, which was 2.5 times higher (%2 < .01) than that reported in women without a cancer diagnosis. Women with anxious predispositions and high menopausal symptoms may be at risk for SD and may benefit from early interventions to prevent SD.
Citation Information: Cancer Res 2010;70(24 Suppl):Abstract nr P2-12-02.
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Song X, Vishnivetskiy SA, Seo J, Chen J, Gurevich EV, Gurevich VV. Arrestin-1 expression level in rods: balancing functional performance and photoreceptor health. Neuroscience 2010; 174:37-49. [PMID: 21075174 DOI: 10.1016/j.neuroscience.2010.11.009] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Revised: 10/31/2010] [Accepted: 11/06/2010] [Indexed: 12/16/2022]
Abstract
In rod photoreceptors, signaling persists as long as rhodopsin remains catalytically active. Phosphorylation by rhodopsin kinase followed by arrestin-1 binding completely deactivates rhodopsin. Timely termination prevents excessive signaling and ensures rapid recovery. Mouse rods express arrestin-1 and rhodopsin at ∼0.8:1 ratio, making arrestin-1 the second most abundant protein in the rod. The biological significance of wild type arrestin-1 expression level remains unclear. Here we investigated the effects of varying arrestin-1 expression on its intracellular distribution in dark-adapted photoreceptors, rod functional performance, recovery kinetics, and morphology. We found that rod outer segments isolated from dark-adapted animals expressing arrestin-1 at wild type or higher level contain much greater fraction of arrestin-1 than previously estimated, 15-25% of the total. The fraction of arrestin-1 residing in the outer segments (OS) in animals with low expression (4-12% of wild type) is much lower, 5-7% of the total. Only 4% of wild type arrestin-1 level in the outer segments was sufficient to maintain near-normal retinal morphology, whereas rapid recovery required at least ∼12%. Supra-physiological arrestin-1 expression improved light sensitivity and facilitated photoresponse recovery, but was detrimental for photoreceptor health, particularly in the peripheral retina. Thus, physiological level of arrestin-1 expression in rods reflects the balance between short-term functional performance of photoreceptors and their long-term health.
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290
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Sahoo N, Song X, Zhu X, Gillin M. A Novel Procedure to Account for the Changes in the Position of High or Low Density Objects in Treatment Planning for Spot Scanned Proton Beam Therapy. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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291
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Xie L, Song X, Wang X, Wei L, Liu Y. Fractionated Irradiation May Enhanced Invasion and Migration of Non-small Cell Lung Cancer by Inducing Epithelial-Mesenchymal Transition. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1464] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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292
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Pan G, Yan G, Song X, Qiu X. BP neural network classification for bleeding detection in wireless capsule endoscopy. J Med Eng Technol 2010; 33:575-81. [PMID: 19639509 DOI: 10.1080/03091900903111974] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Bleeding in the digestive tract is one of the most common gastrointestinal tract (GI) diseases, as well as the complication of some fatal diseases. Wireless capsule endoscopy (WCE) allows physicians to noninvasively examine the entire GI tract. However it is very laborious and time-consuming to inspect large numbers of WCE images, which limits the wider application of WCE. It is therefore important to develop an automatic and intelligent computer-aided bleeding detection technique. In this paper, a new method aimed at bleeding detection in WCE images is proposed. Colour texture features distinguishing the bleeding regions from non-bleeding regions are extracted in RGB and HSI colour spaces; then a neural network using the colour texture features as the feature vector inputs is designed to recognize the bleeding regions. The experiments demonstrate that the bleeding regions can be correctly recognized and clearly marked out. The sensitivity of the algorithm is 93% and the specificity is 96%.
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293
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Foley KA, Song X. Reply to Retrospective evaluation of cetuximab-related adverse events from claims databases—methodological concerns. Ann Oncol 2010; 21:1732-1733. [PMID: 32634899 PMCID: PMC2911203 DOI: 10.1093/annonc/mdq329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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294
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Song X, Su W, Chen L, Ji JJ. Functional expression of large-conductance Ca2+-activated potassium channels in lateral globus pallidus neurons. Neuroscience 2010; 169:1548-56. [PMID: 20600663 DOI: 10.1016/j.neuroscience.2010.06.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2010] [Revised: 06/10/2010] [Accepted: 06/11/2010] [Indexed: 10/19/2022]
Abstract
The presence of large-conductance Ca(2+)-activated potassium (BK) channels, which are considered to play an important role in the excitability of neurons, in the highly-excitable lateral globus pallidus (LGP) neurons has yet to be confirmed. In this study, we confirmed the functional expression of BK channels in mouse LGP neurons and investigated the characteristics of their single-channel currents using inside-out patch-clamp recordings. These BK channels had a conductance of 276 pS, were activated by the elevation of both the transmembrane potential and intracellular calcium concentration ([Ca(2+)](i)), and were completely blocked by the BK channel-specific blocker paxilline (100 nM). In addition, the channel currents were sensitive to high-energy phosphate compounds and low internal pH. The cellular function of these BK channels was then investigated by nystatin-perforated whole-cell recording. Paxilline (100 nM) had no effect on the frequency and half-width of the action potential (AP) in LGP neurons under control conditions, but significantly attenuated the hyperpolarization that was caused by carbonyl cyanide m-chlorophenylhydrazone (CCCP), an inhibitor of ATP synthesis. In addition, the pancreatic beta-cell type ATP-sensitive potassium channel (K(ATP) channel) blocker tolbutamide (0.25 mM) also attenuated the hyperpolarization, in a manner similar to paxilline. The voltage-dependent potassium channel blocker tetraethylammonium (TEA, 2 mM) significantly decreased the frequency and increased the half-width of the AP in LGP neurons under control conditions, and attenuated CCCP-induced hyperpolarization to an extent close to that of paxilline. The results presented here suggest that functional BK channels are present in LGP neurons, and may behave as partners of K(ATP) channels in the regulation of neuronal activity under metabolic stress conditions.
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295
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Ding X, Sahoo N, Song X, Zhu X, Lii M, Gillin M. SU-GG-T-379: GEANT4 Monte-Carlo Simulation of Dosimetry Parameters of the Passively Scattered Beam Lines at the Proton Therapy Center in Houston. Med Phys 2010. [DOI: 10.1118/1.3468776] [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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296
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Paquet L, Frechette DA, Dent SF, Song X, Verma S. Sexual distress in early breast cancer (EBC) survivors. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e19595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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297
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Zhao H, Chen G, Feng J, Chen Y, Zhang Y, Song X, Huang Y, Zhang L. A phase II study of erlotinib plus capecitabine (XEL) as first-line treatment for elderly patients (pts) with advanced adenocarcinoma of lung (ML 22206 study). J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e18016] [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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298
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Chu D, Wu G, Han B, Song X, Chen G, Zhou C, Wang Q, Wu S, Wang Y, Zi-Ping W. Docetaxel plus cisplatin versus vinorelbine plus cisplatin as adjuvant chemotherapy in stage IB-IIIA non-small cell lung cancer: Preliminary result of phase II pilot trial CHL001/TAX622. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.7063] [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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299
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Song X, Barber B, Zhao Z, Gregory C, Cao Z. Characterize medical care during disease phases in metastatic colorectal cancer. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.3625] [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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300
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Descourt P, Carlier T, Du Y, Song X, Buvat I, Frey EC, Bardies M, Tsui BMW, Visvikis D. Implementation of angular response function modeling in SPECT simulations with GATE. Phys Med Biol 2010; 55:N253-66. [PMID: 20393239 DOI: 10.1088/0031-9155/55/9/n04] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Among Monte Carlo simulation codes in medical imaging, the GATE simulation platform is widely used today given its flexibility and accuracy, despite long run times, which in SPECT simulations are mostly spent in tracking photons through the collimators. In this work, a tabulated model of the collimator/detector response was implemented within the GATE framework to significantly reduce the simulation times in SPECT. This implementation uses the angular response function (ARF) model. The performance of the implemented ARF approach has been compared to standard SPECT GATE simulations in terms of the ARF tables' accuracy, overall SPECT system performance and run times. Considering the simulation of the Siemens Symbia T SPECT system using high-energy collimators, differences of less than 1% were measured between the ARF-based and the standard GATE-based simulations, while considering the same noise level in the projections, acceleration factors of up to 180 were obtained when simulating a planar 364 keV source seen with the same SPECT system. The ARF-based and the standard GATE simulation results also agreed very well when considering a four-head SPECT simulation of a realistic Jaszczak phantom filled with iodine-131, with a resulting acceleration factor of 100. In conclusion, the implementation of an ARF-based model of collimator/detector response for SPECT simulations within GATE significantly reduces the simulation run times without compromising accuracy.
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