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Glick D, Lyen S, Le L, Lindsay P, Wong O, Bezjak A, Brade A, Cho J, Hope A, Sun A, Shapera S, Kandel S, Giuliani M. Impact of Pretreatment Interstitial Lung Disease on Radiation Pneumonitis and Survival in Patients Treated With Lung Stereotactic Body Radiation Therapy (SBRT). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Bissonnette J, Bezjak A, Becker N, Vines D, Sun A. Serial 4-Dimensional (4D) Computed Tomography/4D Positron Emission Tomography Imaging to Predict and Monitor Response for Locally Advanced Non-Small Cell Lung Cancer Radiation Therapy. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Bezjak A, Paulus R, Gaspar L, Timmerman R, Straube W, Ryan W, Garces Y, Pu A, Singh A, Videtic G, McGarry R, Iyengar P, Pantarotto J, Urbanic J, Sun A, Daly M, Grills I, Normolle D, Bradley J, Choy H. Efficacy and Toxicity Analysis of NRG Oncology/RTOG 0813 Trial of Stereotactic Body Radiation Therapy (SBRT) for Centrally Located Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.035] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Hahn E, Ng A, Bashir S, Jiang H, Tsang R, Sun A, Gospodarowicz M, Ahmed S, Hodgson D. Late Cardiac Toxicity After Mediastinal Radiation Therapy for Hodgkin Lymphoma: Will Evaluating Dose to Coronary Arteries Improve Risk Estimates? Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Rishi A, Huang S, Song Y, Waldron J, O'Sullivan B, Wells W, Ringash J, Sun A, Hope A, Chung P, Giuliani M, Goldstein D, Spreafico A, Tong L, Xu W, Bayley A. Outcome of Radiation Therapy for Aggressive Basal Cell Carcinoma of the Head and Neck. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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56
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Lin A, Bezjak A, Lim G, Le L, Higgins J, Bissonnette J, Sun A. Does Early Tumor Regression Observed on Cone Beam Computed Tomography During Chemoradiation Therapy Predict Favorable Outcome in Locally Advanced Lung Adenocarcinoma? Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Giuliani M, Sampson LR, Wong O, Gay J, Le LW, Cho BCJ, Brade A, Sun A, Bezjak A, Hope AJ. Prognostic value of pretreatment circulating neutrophils, monocytes, and lymphocytes on outcomes in lung stereotactic body radiotherapy. ACTA ACUST UNITED AC 2016; 23:e362-8. [PMID: 27536185 DOI: 10.3747/co.23.3051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE In the present study, we determined the association of pretreatment circulating neutrophils, monocytes, and lymphocytes with clinical outcomes after lung stereotactic body radiotherapy (sbrt). METHODS All patients with primary lung cancer and with a complete blood count within 3 months of lung sbrt from 2005 to 2012 were included. Overall survival (os) was calculated using the Kaplan-Meier method. Factors associated with os were investigated using univariable and multivariable Cox proportional hazards regression. Fine-Gray competing risk regression was performed to test the association of the neutrophil:lymphocyte (nlr) and monocyte:lymphocyte (mlr) ratios with two types of failure: disease-related failure and death, and death unrelated to disease. RESULTS Of the 299 sbrt patients identified, 122 were eligible for analysis. The median and range of the nlr and mlr were 3.0 (0.3-22.0) and 0.4 (0.1-1.9) respectively. On multivariable analysis, sex (p = 0.02), T stage (p = 0.04), and nlr (p < 0.01) were associated with os. On multivariable analysis, T stage (p < 0.01) and mlr (p < 0.01) were associated with disease-related failure; mlr (p = 0.03), nlr (p < 0.01), and sbrt dose of 48 Gy in 4 fractions (p = 0.03) and 54 Gy or 60 Gy in 3 fractions (p = 0.02) were associated with disease-unrelated death. Median survival was 4.3 years in the nlr≤3 group (95% confidence interval: 3.5 to not reached) and 2.5 years in the nlr>3 group (95% confidence interval: 1.7 to 4.8; p < 0.01). CONCLUSIONS In lung sbrt patients, nlr and mlr are independently associated with os and disease-unrelated death. If validated, nlr and mlr could help to identify patients who would benefit most from sbrt.
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Ping N, Sun A, Song Y, Wang Q, Yin J, Cheng W, Xu Y, Wen L, Yao H, Ma L, Qiu H, Ruan C, Wu D, Chen S. Exome sequencing identifies highly recurrent somatic GATA2 and CEBPA mutations in acute erythroid leukemia. Leukemia 2016; 31:195-202. [PMID: 27389056 DOI: 10.1038/leu.2016.162] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 04/28/2016] [Accepted: 05/20/2016] [Indexed: 01/13/2023]
Abstract
Acute erythroid leukemia (AEL), characterized by a predominant erythroid proliferation, is a subtype of acute myelogenous leukemia. The genetic basis of AEL remains poorly defined. Through whole-exome sequencing, we identified high frequencies of mutations in CEBPA (32.7%), GATA2 (22.4%), NPM1 (15.5%), SETBP1 (12.1%) and U2AF1 (12.1%). Structure prediction analysis revealed that most of the GATA2 mutations were located at the DNA-binding N-terminal zinc-finger near the DNA-binding interface, suggesting that mutations could result in at least partial inactivation of GATA2 protein. On co-transfection of a GATA-responsive reporter construct together with plasmids expressing either GATA2 wild-type or GATA2 ZF1 mutants (P304H, L321P and R330X) in 293T cells, we found a reduced transcriptional activation in cells transfected with GATA2 mutants. To determine whether reduced GATA2 function is involved in leukemogenesis of AEL, we transfected 32D cells with GATA2 mutants and evaluated the impact of GATA2 mutations on erythroid differentiation. Our data revealed an increased expression of erythroid-related antigens Ter-119, β-globin and βh1-globin, as well as increased hemoglobin positivity in 32D cells transfected with GATA2 mutants compared with control cells. Our results suggest that the decline of GATA2 resulting from mutations contributes to the erythroid commitment, differentiation and the development of AEL.
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Mitchell RT, Sun A, Mayo A, Forgan M, Comrie A, Gillett PM. Coeliac screening in a Scottish cohort of children with type 1 diabetes mellitus: is DQ typing the way forward? Arch Dis Child 2016; 101:230-3. [PMID: 26718815 PMCID: PMC4789707 DOI: 10.1136/archdischild-2015-309754] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 11/23/2015] [Indexed: 12/12/2022]
Abstract
BACKGROUND Children with type 1 diabetes mellitus (T1DM) are at increased risk of coeliac disease (CD). Recent guidelines indicate coeliac screening should include HLA typing for CD predisposing (DQ2/DQ8) alleles and those negative for these alleles require no further coeliac screening. METHODS Children (n=176) with T1DM attending clinics across two Scottish regions were screened for HLA DQ2/DQ8 as part of routine screening. Data collected included the frequency of DQ2/DQ8 genotypes and the additional cost of HLA screening. RESULTS Overall, DQ2/DQ8 alleles were identified in 94% of patients. The additional cost of HLA typing was £3699.52 (£21.02 per patient). All patients with known CD (11/176) were positive for DQ2/DQ8 and all were diagnosed with CD within 5 years of T1DM diagnosis. CONCLUSIONS The vast majority of children with T1DM have CD-predisposing HLA genotypes limiting the number of patients that can be excluded from further screening. We conclude that HLA genotyping is not currently indicated for CD screening in this population.
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Bezjak A, Paulus R, Gaspar L, Timmerman R, Straube W, Ryan W, Garces Y, Pu A, Singh A, Videtic G, McGarry R, Iyengar P, Pantarotto J, Urbanic J, Sun A, Daly M, Grills I, Normolle D, Bradley J, Choy H. Primary Study Endpoint Analysis for NRG Oncology/RTOG 0813 Trial of Stereotactic Body Radiation Therapy (SBRT) for Centrally Located Non-Small Cell Lung Cancer (NSCLC). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.10.040] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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61
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Yau V, Giuliani M, Wong O, Le L, Darling G, Shepherd F, Brade A, Cho J, Sun A, Bezjak A, Hope A. Outcomes in Patients With Stage III Non-Small Cell Lung Cancer Treated With Neoadjuvant Concurrent Chemotherapy and Radiation Therapy Followed by Surgical Resection. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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62
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Sole C, Hope A, Dayyat A, Sun A, Cho J, Wong O, Lee L, Brade A, Bezjak A, Giuliani M. Safety and Outcomes of Multiple Courses of Stereotactic Body Radiation Therapy to the Lung. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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63
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Zhang T, Cen J, Yao L, Chen Y, Xie J, Xu C, Wu D, Sun A, Chen S. 209 PROGNOSTIC SIGNIFICANCE OF WT1 EXPRESSION IN MYELODYSPLASTIC SYNDROME. Leuk Res 2015. [DOI: 10.1016/s0145-2126(15)30210-1] [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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Sun A, Wang TZ, Wang N, Liu XF, Sha ZX, Chen SL. Establishment and characterization of an ovarian cell line from half-smooth tongue sole Cynoglossus semilaevis. JOURNAL OF FISH BIOLOGY 2015; 86:46-59. [PMID: 25359438 DOI: 10.1111/jfb.12535] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 08/14/2014] [Indexed: 06/04/2023]
Abstract
A new ovarian cell line, CSO, was established from half-smooth tongue sole Cynoglossus semilaevis. Primary culture of CSO cells was initiated from digestion of ovarian tissues pieces by trypsin solution and cultured at 24° C in Dulbecco's modified Eagle's medium-F12 medium (DMEM-F12, 1:1) (pH 7·0), supplemented with 20% foetal bovine serum, basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), insulin-like growth factor-I (IGF-I) and human chorionic gonadotropin (HCG). The cultured CSO cells, fibroblastic in morphology, proliferated to 100% confluency 3 days later and had been subcultured to passage 80. Chromosome analyses indicated that the CSO cells exhibited chromosomal aneuploidy with a modal chromosome number of 42 that displayed the normal diploid karyotype of C. semilaevis [2n = 42 t, fundamental number (NF ) = 42]. Reverse transcription polymerase chain reaction revealed that CSO cells could express ovarian somatic cell functional genes p450armo, foxl2 and sox9a but not ovary germ cell marker gene vasa and male-specific gene dmrt1. Transfection experiment demonstrated that CSO cells transfected with pEGFP-N3 plasmid could express green fluorescence protein (GFP) with higher transfection efficiency. The CSO cell line might serve as a valuable tool for studies on the mechanism of sex determination and oogenesis of ovary in flatfish.
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Lejnine S, Marton MJ, Wang IM, Howell BJ, Webber AL, Maxwell JW, Shire N, Malkov V, Lunceford J, Zeremski M, Sun A, Ruddy M, Talal AH. Gene expression analysis in serial liver fine needle aspirates. J Viral Hepat 2015; 22:64-76. [PMID: 24475909 PMCID: PMC4721927 DOI: 10.1111/jvh.12213] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 10/08/2013] [Indexed: 12/21/2022]
Abstract
No method with low morbidity presently exists for obtaining serial hepatic gene expression measurements in humans. While hepatic fine needle aspiration (FNA) has lower morbidity than core needle biopsy, applicability is limited due to blood contamination, which confounds quantification of gene expression changes. The aim of this study was to validate FNA for assessment of hepatic gene expression. Liver needle biopsies and FNA procedures were simultaneously performed on 17 patients with chronic hepatitis C virus infection with an additional FNA procedure 1 week later. Nine patients had mild/moderate fibrosis and eight advanced fibrosis. Gene expression profiling was performed using Affymetrix microarrays and TaqMan qPCR; pathway analysis was performed using Ingenuity. We developed a novel strategy that applies liver-enriched normalization genes to determine the percentage of liver in the FNA sample, which enables accurate gene expression measurements overcoming biases derived from blood contamination. We obtained almost identical gene expression results (ρ = 0.99, P < 0.0001) comparing needle biopsy and FNA samples for 21 preselected genes. Gene expression results were also validated in dogs. These data suggest that liver FNA is a reliable method for serial hepatic tissue sampling with potential utility for a variety of preclinical and clinical applications.
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Yap M, Sun A, Higgins J, Marshall A, Becker N, Le L, Clarke K, Vines D, Bezjak A, Bissonnette J. Adaptive Dose-Escalation Using Serial 4D-PET/CT Scans During Radiation Therapy for Locally Advanced Non-Small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.1888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Cui J, Sun A, Reshichkov M, Yun F, Baski A, Morkoç H. Preparation of Sapphire for High Quality III-Nitride Growth. ACTA ACUST UNITED AC 2014. [DOI: 10.1557/s1092578300000077] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We developed a unique preparation technique to eliminate surface damage on the c-plane of sapphire and render it atomically flat. AFM images of c-plane sapphire annealed at 1380 °C for 1hour show terrace-like features with about 0.2 μm long terraces. The GaN layers grown by MBE on annealed sapphire have [0 0 2] symmetric and [1 0 4] asymmetric full width at half maximum (FWHM) of about 60 and 132 arcsec, respectively. This compares with 408 and 600 arcsec, respectively, for GaN grown on sapphire having gone through conventional chemical cleaning.
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Gao L, Li Y, Zhang Y, Chen X, Gao L, Zhang C, Liu Y, Kong P, Wang Q, Su Y, Wang C, Wang S, Li B, Sun A, Du X, Zeng D, Li J, Liu H, Zhang X. Long-term outcome of HLA-haploidentical hematopoietic SCT without in vitro T-cell depletion for adult severe aplastic anemia after modified conditioning and supportive therapy. Bone Marrow Transplant 2014; 49:519-24. [PMID: 24464145 DOI: 10.1038/bmt.2013.224] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 10/22/2013] [Accepted: 12/01/2013] [Indexed: 11/09/2022]
Abstract
HLA-haploidentical hematopoietic SCT (HSCT) is an option for severe aplastic anemia (SAA) patients. Here, we evaluated the outcomes of 26 adult-SAA patients who received HLA-haploidentical HSCT in five transplant centers in southwestern China. Most of the patients in this study failed prior therapy and were transfused heavily before the transplantation. The patients received fludarabine+cyclophosphamide+antithymocyte globulin as conditioning regimens and then unmanipulated peripheral blood plus marrow transplantation. Micafungin, i.v. Ig and recombinant human TPO were used for post-grafting infection prevention and supportive care. Of 26 patients, 25 achieved engraftment at a median of 13 days (range, 11-19 days) after HSCT. One of 25 patients experienced graft rejection and did not achieve sustained engraftment after second HSCT. Therefore, the final engraftment rate was 92.3%. Three of 25 (12%) patients developed acute GVHD, 10 of 25 (40%) patients developed chronic GVHD (9 with limited whereas the other with extensive). The OS rate was 84.6% and the average follow-up time was 1313.2 (738-2005) days for surviving patients. This encouraging result suggests that HLA-haploidentical HSCT is an effective therapeutic option for adults with acquired SAA if an HLA-identical donor is not available.
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Yu M, Sun A, Zhang Y, Liu R. Purification of Coumarin Compounds From Cortex fraxinus by Adsorption Chromatography. J Chromatogr Sci 2013; 52:1033-7. [DOI: 10.1093/chromsci/bmt153] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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70
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Bai Y, Zhou J, Sun A, Qian J, Zou Y, Ge J. Potential etiology of diabetic cardiomyopathy. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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71
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He G, Li H, Lin H, Bian M, Wang Y, Sun A, Li M. Topographical distribution pattern of cervical intraepithelial neoplasia across the cervix. J Int Med Res 2013. [PMID: 23206473 DOI: 10.1177/030006051204000530] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
OBJECTIVE The distribution of cervical intraepithelial neoplasia (CIN) lesions across the cervix was determined. METHODS A total of 575 women whose pathological diagnosis after cervical conization was confirmed as CIN were studied; 146 had low-grade CIN and 429 had high-grade CIN. CIN lesion location on the cervix was recorded using 12-h clock face notation. RESULTS In both groups, 12 o'clock was the most common and 2 o'clock the least common lesion location. The most severe lesions were most often located at 8 o'clock and 7 o'clock, in the low- and high-grade groups, respectively. The 2 o'clock site was the least frequent site for the most severe lesion in both groups. Lesions were found more frequently on the posterior lip of the cervix than on the anterior lip, and on the right side of the cervix than on the left side, in both groups. CONCLUSIONS The distribution of CIN lesions is not randomly distributed across the cervix. The 12, 8 and 7 o'clock sites, and the posterior lip and right side of the cervix, should be targeted during colposcopy-directed biopsy of patients with CIN lesions as this may improve diagnostic accuracy.
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Wu C, Gong Y, Sun A, Zhang Y, Zhang C, Zhang W, Zhao G, Zou Y, Ge J. The human MTHFR rs4846049 polymorphism increases coronary heart disease risk through modifying miRNA binding. Nutr Metab Cardiovasc Dis 2013; 23:693-698. [PMID: 22647417 DOI: 10.1016/j.numecd.2012.02.009] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 02/13/2012] [Accepted: 02/29/2012] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIMS Abnormal functioning of 5,10-methylenetetrahydrofolate reductase (MTHFR) enhances the risk for coronary heart disease (CHD). Here, we tested whether a single-nucleotide polymorphism (SNP) located in the 3' untranslated region (UTR) of MTHFR was associated with CHD susceptibility by affecting microRNAs binding. METHODS AND RESULTS We first analyzed in silico the SNPs localized in the 3' UTR of MTHFR for their ability to modify miRNA binding. We observed that rs4846049 (G > T) was a potential candidate SNP to modulate miRNAs:MTHFR mRNA complex, with the greatest changed binding free energy for has-miR-149. Based on luciferase analysis, hsa-miR-149 inhibited the activity of the reporter vector carrying -T allele, but not -G allele. We further conducted a case-control study (654 vs 455) in a Chinese Han population. rs4846049 was significantly associated with increased risk for CHD. In addition, the T allele was associated with decreased levels of HDL-cholesterol and apoA. Finally, we observed a reduced MTHFR protein level in peripheral blood mononuclear cells of CHD patients with TT carriers compared to GG carriers of rs4846049. CONCLUSION Our results suggest that rs4846049 (G > T) of MTHFR is associated with increased risk for CHD. We also identified a potentially pathogenetic mechanism of SNP-modified posttranscriptional gene regulation by miRNAs to MTHFR.
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Dong M, Parsaik AK, Kremers W, Sun A, Dean P, Prieto M, Cosio FG, Gandhi MJ, Zhang L, Smyrk TC, Stegall MD, Kudva YC. Acute pancreas allograft rejection is associated with increased risk of graft failure in pancreas transplantation. Am J Transplant 2013; 13:1019-1025. [PMID: 23432918 DOI: 10.1111/ajt.12167] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Revised: 12/18/2012] [Accepted: 12/26/2012] [Indexed: 01/25/2023]
Abstract
The effect of acute allograft rejection (AR) on long-term pancreas allograft function is unclear. We retrospectively studied 227 consecutive pancreas transplants performed at our institution between January 1, 998 and December 31, 2009 including: 56 simultaneous pancreas and kidney (SPK), 69 pancreas transplantation alone (PTA); and 102 pancreas after kidney (PAK) transplants. With a median follow-up of 6.1 (IQR 3-9) years, 57 patients developed 79 episodes of AR, and 19 experienced more than one episode. The cumulative incidence for AR was 14.7%, 19.7%, 26.6% and 29.1% at 1, 2, 5 and 10 years. PTA transplant (hazards ratio [HR]=2.28, p=0.001) and donor age (per 10 years) (HR=1.34, p=0.006) were associated with higher risk for AR. The first AR episode after 3 months post PT was associated with increased risk for complete loss (CL) (HR 3.79, p<0.001), and the first AR episode occurring during 3- to 12-month and 12- to 24-month periods after PT were associated with significantly increased risk for at least partial loss (PL) (HR 2.84, p=0.014; and HR 6.25, p<0.001, respectively). We conclude that AR is associated with increased risk for CL and at least PL. The time that the first AR is observed may influence subsequent graft failure.
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Dai M, Su YP, Sun A, Su XH, Liu F, Chen M. Identification of a novel HLA-A allele, A*02:357, in a Chinese individual. TISSUE ANTIGENS 2013; 81:171-172. [PMID: 23356331 DOI: 10.1111/tan.12058] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Human leukocyte antigen (HLA)-A*02:357 differs from A*02:01:01:01 by a single nucleotide at position 840 from A to T exon 4, leading to amino acid substitution from Arg to Ser.
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Su YP, Dai M, Sun A, Su XH, Liu F, Chen M. Identification of a novel HLA-A allele A*33:61 in a Chinese individual. ACTA ACUST UNITED AC 2012; 81:49-50. [PMID: 23134430 DOI: 10.1111/tan.12023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2012] [Revised: 09/24/2012] [Accepted: 10/07/2012] [Indexed: 11/29/2022]
Abstract
HLA-A*33:61 has two nucleotides change from A*33:03:01 at positions 559 and 560 in exon 3 where A→C and C→G (codon 163 ACG→CGG).
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Sun A, Wang YP, Lin HP, Chen HM, Cheng SJ, Chiang CP. Significant reduction of homocysteine level with multiple B vitamins in atrophic glossitis patients. Oral Dis 2012; 19:519-24. [DOI: 10.1111/odi.12035] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2012] [Revised: 10/07/2012] [Accepted: 10/12/2012] [Indexed: 11/28/2022]
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Atallah S, Bezjak A, Taremi M, Allibhai Z, Le L, Sun A, Anthony B, Cho J, Hope A. Impact of Pretreatment Growth Rate on Outcome of Stage I Non-small Cell Lung Cancer After Stereotactic Body Radiation Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Gore E, Paulus R, Wong S, Sun A, Videtic G, Dutta S, Suntharalingam M, Chen Y, Gaspar L, Choy H. Phase III Comparison of Prophylactic Cranial Irradiation Versus Observation in Patients with Locally Advanced Non-small Cell Lung Cancer -- An Updated Analysis of RTOG 0214. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.169] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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79
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Skliarenko J, Lao L, Tsang R, Pintilie M, Hodgson D, Sun A, Kukreti V, Kuruvilla J, Crump M, Gospodarowicz M. Pattern of Failure in Patients With Stage I-II Hodgkin Lymphoma Treated With CMT: Implications of Partial Nodal Region Coverage and the Need for Adjacent Uninvolved Nodal Region Coverage. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1639] [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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Khan L, Hodgson D, Sun A, Gospodarowicz M, Crump M, Kuruvilla J, Kukreti V, Pintilie M, Tsang R. A Single Institution Experience of Extranodal Natural Killer/T-cell Lymphoma of Nasal Type. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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81
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Sun A, Wang YP, Lin HP, Chia JS, Chiang CP. Do all the patients with gastric parietal cell antibodies have pernicious anemia? Oral Dis 2012; 19:381-6. [DOI: 10.1111/odi.12014] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2012] [Revised: 07/17/2012] [Accepted: 07/27/2012] [Indexed: 12/01/2022]
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82
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Yung T, Giuliani ME, Le LW, Sun A, Cho BCJ, Bezjak A, Brade A, Hope AJ. Outcomes of accelerated hypofractionated radiotherapy in stage i non-small-cell lung cancer. ACTA ACUST UNITED AC 2012; 19:e264-9. [PMID: 22876155 DOI: 10.3747/co.19.976] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
PURPOSE Outcomes after treatment with accelerated hypofractionated radiotherapy in stage i medically inoperable non-small-cell lung cancer (nsclc) patients were determined. METHODS Our single-institution retrospective review looked at medically inoperable patients with T1-2N0M0 nsclc treated with accelerated hypofractionated curative-intent radiotherapy between 1999 and 2009. Patients were staged mainly by computed tomography imaging of chest and abdomen, bone scan, and computed tomography/magnetic resonance imaging of brain. Positron-emission tomography (pet) staging was performed in 6 patients. Medical charts were reviewed to determine demographics, radiotherapy details, sites of failure, toxicity (as defined by the Common Terminology Criteria for Adverse Events, version 3.0) and vital status. The cumulative incidence of local and distant failure was calculated. Overall (os) and cause-specific (css) survival were estimated by the Kaplan-Meier method. RESULT In the 60 patients treated during the study period, the dose regimens were 50 Gy in 20 fractions (n = 6), 55 Gy in 20 fractions (n = 8), 60 Gy in 20 fractions (n = 42), and 60 Gy in 25 fractions (n = 4). All patients were treated once daily. The median follow-up was 27 months (range: 4-94 months). The os rates at 2 and 5 years were 61% [95% confidence interval (ci): 50% to 75%] and 19% (95% ci: 10% to 34%) respectively. The css rates at 2 and 5 years were 79% (95% ci: 68% to 91%) and 39% (95% ci: 24% to 63%) respectively. The cumulative incidence of local failure was 20% at 5 years. The cumulative incidence of distant failure was 28% at 5 years. No patients experienced grade 3 or greater pneumonitis or esophagitis. CONCLUSIONS Accelerated hypofractionated regimens are well tolerated and provide good local control in medically inoperable patients with stage i nsclc. Such regimens may be a reasonable treatment alternative when stereotactic body radiation therapy is not feasible.
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Becker N, Clarke K, Pekar V, St-Hilaire J, Leavens C, Higgins J, Bezjak A, Sun A, Bissonnette JP. Poster - Thur Eve - 20: Serial FDG 4DPET imaging during radiotherapy in advanced lung cancer patients. Med Phys 2012; 39:4628. [PMID: 28516698 DOI: 10.1118/1.4740128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
The availability of respiratory synchronized PET (4DPET) imaging has enabled more accurate analysis of metabolic response since motion blur is minimized. We present our preliminary analysis of serial FDG 4DPET images acquired at weeks 0, 2, 4, and 7 during radiotherapy of seven stage II-III NSCLC patients. The tumor and nodal PTV of the week 0 images restrained a 4DPET image thresholding algorithm to automatically contour SUV levels ranging from 20 to 80% of the maximum SUV, creating an intensity volume histogram (IVH) for each week. These contours allowed analysis of PET volumes and standard PET metrics such as SUVmax and SUVmean . We found a trend for decreasing SUVmax and SUVmean over a treatment course in both the tumor and nodal regions. On average, the SUVmax within the tumor decreased by 17±13% (1 SD) after 2 weeks, 30±13% after 4 weeks, and 39±19% after 7 weeks of radiotherapy. Decreasing volume trends were also observed in the 20 to 80% max SUV autocontours, ranging from 26±29% to 50±40% respectively, over 7 weeks of treatment. Only one patient demonstrated an increase in FDG uptake within the tumor volume between week 0 and week 2 of treatment, and was also the only patient to recur locally at 3 months following treatment. Changes in tumor metabolism over the course of advanced NSCLC radiotherapy are quantifiable with serial FDG 4DPET imaging. Preliminary analysis suggests that variations in these trends could be useful in identifying non-responding patients that may require an alternative radiotherapeutic approach.
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Luo H, Pan Y, Min L, Zhao L, Li J, Leung J, Xue L, Yin Z, Liu X, Liu Z, Sun A, Li C, Wu K, Guo X, Fan D. Transgastric endoscopic gastroenterostomy using a partially covered occluder: a canine feasibility study. Endoscopy 2012; 44:493-8. [PMID: 22531984 DOI: 10.1055/s-0031-1291689] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND STUDY AIMS The use of natural orifice transluminal endoscopic surgery (NOTES) for gastroenterostomy has been previously reported, but it remains technically challenging and additional assistance is often needed. The aim of this study was to develop and evaluate a novel method for the creation of a gastroenterostomy using NOTES with an occluder. METHODS Transgastric endoscopic gastroenterostomy was performed in 12 healthy female dogs using a therapeutic upper gastrointestinal endoscope and a partially covered occluder. The occluder was removed with a snare 1 week later. The patency of the gastroenterostomy was confirmed by endoscopy, contrast radiological study, necropsy, and histological examination after 2 weeks. RESULTS NOTES gastroenterostomy with an occluder was successful in all 12 dogs. The mean operative time was 32.3 ± 10.3 min (range 20.3 - 53.5). One dog (the first; 8.3 %) died 4 days after the operation of severe intra-abdominal infection due to incorrect deployment of the occluder and poor bowel preparation. Minor bleeding occurred at the anastomosis after removal of the occluder in two of the remaining dogs (18.2 %). Necropsy revealed postoperative adhesions that had developed at the anastomotic site in one dog (9.1 %). No anastomotic leakage or intestinal obstruction was observed. Complete healing of the anastomosis was confirmed on histological evaluation. CONCLUSION Gastroenterostomy performed entirely by NOTES using an occluder was technically feasible in this survival animal model.
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McCloskey P, Ford V, Bissonnette J, Higgins J, Clarke K, Becker N, Leavens C, Bezjak A, Hope A, Sun A. PO-0745 CAN FDG PET DURING THE COURSE OF RADIATION THERAPY FOR LUNG CANCER PREDICT FOR ESOPHAGITIS AND PNEUMONITIS OUTCOME? Radiother Oncol 2012. [DOI: 10.1016/s0167-8140(12)71078-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Qiu G, Tao Y, Du X, Sun A, Yu J, Ruan R, Zheng Y, Ji Y, Zhang N. The impact of prior radiotherapy on fatal complications after self-expandable metallic stents (SEMS) for malignant dysphagia due to esophageal carcinoma. Dis Esophagus 2012; 26:175-81. [PMID: 22486888 DOI: 10.1111/j.1442-2050.2012.01348.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The esophageal stent has been demonstrated to serve as a safe and effective palliative treatment for advanced inoperable esophageal carcinoma. However, the safety of esophageal stents in patients with prior radiotherapy (RT) remains debated. This article aims to investigate the impact of prior RT on the incidence of fatal complications after self-expandable metallic stents for palliation of malignant dysphagia because of esophageal carcinoma. Between January 2007 and July 2010, 93 patients with malignant dysphagia because of esophageal carcinoma underwent placement of self-expandable metallic stents in our hospital. Patients were retrospectively separated into two groups: patients with RT before stent placement (RT group, n=57) and patients with no treatment before stent placement (no RT group, n=35).The median survival after stent placement was 77 days (7-842 days) in the RT group and 246 days (15-878 days) in the no RT group. Improvement in dysphagia score was similar in both groups. The fatal complications included fatal gastrointestinal hemorrhage and uncontrolled pneumonia. The incidence of fatal gastrointestinal hemorrhage and uncontrolled pneumonia were 28.1% and 5.7% (P=0.009), 28.1% and 5.7% (P=0.009), respectively. Logistic regression analysis showed a significant interaction between prior RT and fatal gastrointestinal hemorrhage (relative risk 7.82, 95% confidence interval 1.54-39.61; P=0.013). Mortality of massive hemorrhage was 5.7% (2/35), 0% (0/4), 12.5% (3/24), and 44.8% (13/29), respectively, in patients who received 0, 1Gy∼49Gy, 50Gy∼60Gy, and >60Gy (χ(2) =17.761; P=0.000). Logistic regression analysis disclosed prior RT did not significantly increase the risk of uncontrolled pneumonia (relative risk 1.47, 95% confidence interval 0.21-10.12; P=0.697).
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Tang X, Zhou Q, Jin Z, Fu Z, Ye C, Shi X, Sun A, Wu D. Novel Therapy with Interferon-α in Combination with Donor Lymphocyte Infusion for High Risk Acute Leukemia Patients Who Relapsed After Allogeneic Hematopoietic Stem Cell Transplantation. Biol Blood Marrow Transplant 2012. [DOI: 10.1016/j.bbmt.2011.12.050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
We show the existence of a novel type of interstitial cell-telocytes (TC) in mouse trachea and lungs. We used cell cultures, vital stainings, as well as scanning electron microscopy (SEM), transmission electron microscopy (TEM) and immunohistochemistry (IHC). Phase contrast microscopy on cultured cells showed cells with unequivocally characteristic morphology of typical TC (cells with telopodes-Tp). SEM revealed typical TC with two to three Tp-very long and branched cell prolongations. Tp consist of an alternation of thin segments (podomers) and thick segments (podoms). The latter accommodate mitochondria (as shown by Janus Green and MitoTracker), rough endoplasmic reticulum and caveolae. TEM showed characteristic podomers and podoms as well as close relationships with nerve endings and blood capillaries. IHC revealed positive expression of TC for c-kit, vimentin and CD34. In conclusion, this study shows the presence in trachea and lungs of a peculiar type of cells, which fulfils the criteria for TC.
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Zhou J, Fu M, Sun A, Jin X, Zhong C, Wang S, Fu M, Zou Y, Ge J. Adiponectin through its biphasic serum level is a useful biomarker during transition from diastolic dysfunction to systolic dysfunction. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.729] [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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Higgins J, Sun A, Clarke K, Leavens C, Allaire S, Marshall A, Hope A, Le L, Bezjak A, Bissonnette J. Dosimetric Effects Of Interfractional Patient Setup Error On Target And Spinal Canal Dose In Locally Advanced Lung Cancer Patients. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Ung Y, Gu C, Cline K, Sun A, MacRae R, Wright J, Yu E, Evans W, Julian J, Levine M. An Ontario Clinical Oncology (OCOG) Randomized Trial (PET START) of FDG PET/CT in Stage 3 Non-small Cell Lung Cancer (NSCLC): Impact of PET on Survival. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.282] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Xu J, Qian J, Xie X, Ma J, Lin L, Sun A, Zou Y, Ge J. Mesenchymal stem cells preconditioned with high density lipoprotein resist oxidative stress-induced apoptosis and improve cardiac function in a rat model of myocardial infarction. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.64] [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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Xu J, Qian J, Xie X, Ma J, Lin L, Fu M, Sun A, Zou Y, Ge J. Activation of MAPK/ERK1/2 pathways is an important mechanism of oxidative stress-induced apoptosis in mesenchymal stem cells of rats. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.65] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Xu J, Qian J, Xie X, Ma J, Lin L, Fu M, Sun A, Zou Y, Ge J. High density lipoprotein induces rats mesenchymal stem cells proliferation through activating PI3K-Akt pathway. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.67] [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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Hu Z, Gong H, Yang M, Niu Y, Zhang G, Ma H, Zhou N, Li L, Wu J, Lin L, Sun A, Ge J, Zou Y. The granulocyte colony-stimulating factor promotes atherosclerosis in high-fat diet rabbits. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.77] [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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Allibhai Z, Bezjak A, Atallah S, Hope A, Brade A, Sun A, Taremi M, Swaminath A, Cho B. Impact of Tumor Size and Volume on Outcomes following Stereotactic Body Radiation Therapy for Early-stage Non-small Cell Lung Cancer. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Conrad T, Coolens C, Guibord B, San Miguel J, Gospodarowicz M, Tsang R, Sun A, Purdie T, Letourneau D, Hodgson D. Active Breath Control to Reduce Normal Tissue Dose in Patients Receiving Mediastinal Radiotherapy for Hodgkin Lymphoma. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Li J, Ma H, Jiang H, Yuan J, Gong H, Liang Y, Guan A, Wu J, Li L, Zhou N, Niu Y, Sun A, Zou Y. Heat shock transcription factor 1 protects heart after pressure overload through promoting myocardial angiogenesis. BRITISH HEART JOURNAL 2011. [DOI: 10.1136/heartjnl-2011-300867.258] [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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Leavens C, Higgins J, Clarke K, Lavoie C, Hope A, Jaffray D, Sun A, Bissonnette J. Comparison of Two NTCP Models in Terms of Impact on the Maximum Prescription Dose which can be Prescribed in NSCLC Dose Escalation Protocols. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Lao L, Tsang R, Pintilie M, Skliarenko J, Hodgson D, Sun A, Kukreti V, Kuruvilla J, Crump M, Gospodarowicz M. 9219 POSTER Combined Modality Therapy for Stage l-ll Diffuse Large B-cell Lymphoma Provides Excellent Local Control and Clinical Outcome in the Rituximab Era. Eur J Cancer 2011. [DOI: 10.1016/s0959-8049(11)72484-4] [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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