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Jiang S, Hsu YH, Venners SA, Zhang Y, Xing H, Wang X, Xu X. Effects of protein coding polymorphisms in the kallikrein 1 gene on baseline blood pressure and antihypertensive response to irbesartan in Chinese hypertensive patients. J Hum Hypertens 2010; 25:327-33. [PMID: 20613781 DOI: 10.1038/jhh.2010.70] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The aim of this study was to determine the association between coding variants in the human tissue kallikrein 1 (KLK1) gene and baseline blood pressure (BP) and antihypertensive response to irbesartan treatment in Chinese hypertensive patients. A total of 1061 hypertensives were recruited and received daily oral dosage of 150 mg irbesartan for 4 weeks. Predose BPs, BPs and blood irbesartan concentrations at postdose on the 28th day were all measured. Common functional single-nucleotide polymorphisms (SNPs) in the KLK1 gene were genotyped. On the basis of the HapMap data of Han Chinese in the Beijing population, two non-synonymous polymorphisms with minor allele frequency>0.1, SNP rs5517 (Glu162Lys) and rs5516 (Gln121Glu), were selected. Those with GG genotype in the rs5516 locus had higher average baseline systolic BP (SBP) than CC subjects (β±s.e.: 5.0±2.3, P=0.033); and no associations of rs5517 with baseline BP (diastolic BP (DBP) and SBP) and BP responses, or rs5516 with baseline DBP and BP response were observed. In a haplotype-based association test for the KLK1 gene, the Haplo-special score analyses identified that haplotype AG was marginally associated with SBP response (specific score: 1.75 for P=0.08), but not with DBP response. We did not find any associations between haplotypes (GC and AC) and BP responses. The Haplo-GLM analyses showed that, compared with haplotype GC subjects, the subjects with haplotype AG had a marginally greater SBP response (adjusted β±s.e.: 1.81±0.97, P=0.06), but DBP response did not differ. This study suggests that rs5516 in the KLK1 gene may be involved in the development of essential hypertension and in the regulation of SBP-lowering response to irbesartan in Chinese hypertensives.
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Boudreau M, Kraayvanger R, Xu X, Ouriadov A, Santyr G. Sci-Fri AM: Imaging - 01: Measurement of Ultra-Short and Long-Range 3
He Apparent Diffusion Coefficients in an Elastase-Induced Rat Model of Emphysema. Med Phys 2010. [DOI: 10.1118/1.3476180] [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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Perrot S, Winkelmann A, Dukes E, Xu X, Schaefer C, Ryan K, Chandran A, Sadosky A, Zlateva G. Characteristics of patients with fibromyalgia in France and Germany. Int J Clin Pract 2010; 64:1100-8. [PMID: 20497264 DOI: 10.1111/j.1742-1241.2010.02418.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
Abstract
INTRODUCTION Few studies have comprehensively assessed the burden associated with fibromyalgia (FM). This cross-sectional, observational study evaluates the impact of FM on patients in France and Germany. METHODS A total of 299 FM patients were recruited from 33 physician offices in France and Germany during routine visits. Patients completed a survey that included the Brief Pain Inventory-Short Form (BPI-sf), Fibromyalgia Impact Questionnaire (FIQ), EuroQol 5D (EQ-5D) and the Hospital Anxiety and Depression Scale (HADS) to describe their pain, FM and health-related quality of life (HRQOL). FM severity was defined using patients' FIQ total scores with 0 to < 39, 39 to < 59 and 59-100, representing mild, moderate and severe FM, respectively. Site staff completed case report forms using patients' medical records. RESULTS Mean (standard deviation, SD) age was 54.2 (12.6); 81% of patients were women. The mean (SD) FIQ total score was 53.3 (19.6); 33% and 44% of patients reported moderate and severe FM, respectively. Most patients (91%) were receiving prescription medications for FM during the study. Patients reported a mean (SD) EQ-5D health state valuation of 0.44 (0.33) and a mean (SD) BPI-sf Pain Severity Index score of 4.9 (1.8). Forty-one percent of patients reported some level of disruption in their employment because of FM; employed patients missed a mean (SD) of 2.2 (4.6) workdays during the past 4 weeks. An increase in FM severity was significantly associated with increased pain severity, productivity loss, sleep disturbance and higher anxiety and depression (p < 0.0001). CONCLUSIONS There is a substantial burden of illness including treatment limitations for FM patients in France and Germany.
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Hernández-Ramírez R, Chen J, Xu X, Cebrian M, Galván-Portillo M, Torres-Sánchez L, Silva-Zolezzi I, López-Carrillo L. Global DNA methylation and risk of breast cancer in Mexican women. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.193] [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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Hu F, Wu W, Ye X, Xu X, Zhu D. The molecular characteristics of cefepime-susceptible Escherichia coli and Klebsiella spp. isolates with a positive β-lactamase screening test result but negative confirmation. Eur J Clin Microbiol Infect Dis 2010; 29:1297-9. [PMID: 20549530 DOI: 10.1007/s10096-010-0987-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2010] [Accepted: 05/29/2010] [Indexed: 10/19/2022]
Abstract
A negative extended-spectrum β-lactamase (ESBL) phenotypic confirmation test result obtained after a positive ESBL screening test result but which was cefepime-susceptible (NCPSCS) using the Clinical and Laboratory Standards Institute (CLSI) methods has been observed among isolates of Escherichia coli and Klebsiella spp. in the antimicrobial surveillance program in Shanghai, China. Among isolates collected from Huashan Hospital in 2005, NCPSCS strains were observed in 2.5% of 433 E. coli isolates and in 1.2% of 562 Klebsiella spp. isolates. We then selected 11 E. coli isolates and seven Klebsiella spp. NCPSCS isolates. Transmission electron microscopy (TEM), SHV, plasmid-borne AmpC, and CTX-M type ESBL genes were detected by the polymerase chain reaction (PCR) method. We found that all except two K. pneumoniae strains of NCPSCS isolates producing ESBL and AmpC harbored a plasmid-borne CMY-2 or DHA-1 type AmpC enzyme. The majority of NCPSCS E. coli and K. pneumoniae strains from Shanghai harbor plasmid-borne AmpC enzyme, and we recommend that, when NCPSCS strains are identified, further work such as the PCR detection of ESBL genes is necessary to determine whether they will produce ESBLs. The ESBL-positive strains should be reported as resistant to cefepime according to the CLSI guidelines.
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Xu X, Wang K, Zhao X, Li D. First ceratopsid dinosaur from China and its biogeographical implications. CHINESE SCIENCE BULLETIN-CHINESE 2010. [DOI: 10.1007/s11434-009-3614-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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1382
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Wang Q, Xu X, Zhang M. Reply:. AJNR Am J Neuroradiol 2010. [DOI: 10.3174/ajnr.a2188] [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]
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Caracappa P, Gu J, Xu X. SU-EE-A4-06: Organ-Specific Adjustment Factors for Calculating Dose from Any CT Scanner. Med Phys 2010. [DOI: 10.1118/1.3468029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Ding A, Gu J, Caracappa P, Xu X. TH-C-201B-10: Development and Testing of a CT Dose Software “VirtualDose” Using Anatomically Realistic Patient Phantoms: Preliminary Results for the Phase I
of the Project. Med Phys 2010. [DOI: 10.1118/1.3469527] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Gu J, Liu B, Xu X. TH-C-201B-12: CT Dose Reduction with Tube Current Modulation: A Case Study of Fetal Doses to Pregnant Patients Using Monte Carlo Computational Phantoms. Med Phys 2010. [DOI: 10.1118/1.3469529] [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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Na Y, Eom J, Han B, Shi C, De S, Xu X. SU-GG-J-08: Physics-Based Respiration-Simulating Model Incorporating Pressure-Volume Parameters for Lung: What Can We Learn from the Biomechanical Modeling Community? Med Phys 2010. [DOI: 10.1118/1.3468231] [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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Xu X, Kim J, Laganis P, Schulze D, Liang Y, Zhang T. WE-E-201B-02: Development of a Tetrahedron Beam Computed Tomography Benchtop System with a 75 Pixel Field Emission X-Ray Tube: System Setup and Performance Evaluation. Med Phys 2010. [DOI: 10.1118/1.3469448] [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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Na Y, Ding A, Caracappa P, Xu X. SU-GG-T-404: Demonstration of the Ability to Morph an Existing Whole-Body Phantom to a Different Individual. Med Phys 2010. [DOI: 10.1118/1.3468801] [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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He W, Guo B, Xu X, Shi C. SU-GG-J-45: Application of Virtual Patient Model in 4D IMRT Monte Carlo Treatment Planning. Med Phys 2010. [DOI: 10.1118/1.3468269] [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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Kim J, Xu X, Schulze D, Derr M, Zhang T. SU-DD-A4-05: Development of a Tetrahedron Beam Computed Tomography Benchtop System with a 75 Pixel Field Emission X-Ray Tube: Collimator Design and Image Reconstruction. Med Phys 2010. [DOI: 10.1118/1.3468003] [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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Han B, Ding A, Xu X, Bednarz B, Sharp G, Choi N, Chen G, Riper K. SU-GG-J-148: Evaluation of Performance of a Conceptual Time-Resolved Proton Range Telescope for In-Room Respiration Monitoring Using Monte Carlo Simulations and 4DCT Patient Data. Med Phys 2010. [DOI: 10.1118/1.3468371] [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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Deore S, Atanas M, Xu X, Haynes J, Donahue L. SU-GG-T-73: High Dose Rate (HDR) Brachytherapy Using Foley and Catheter Technique for Treatment of Urethral Cancer. Med Phys 2010. [DOI: 10.1118/1.3468459] [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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Mille M, Gu J, Ding A, Xu X, Stabin M, Liu B, Treves S, Fahey F. SU-GG-I-68: Calculation and Evaluation of Internal and External Radiation Exposure to Adult and Pediatric Patients from PET/CT Examinations. Med Phys 2010. [DOI: 10.1118/1.3468101] [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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Guo B, Vazquez L, Xu X, Shi C. SU-GG-J-96: Statistical Analysis of the Correlation between Breathing Characteristics with Patient Parameters. Med Phys 2010. [DOI: 10.1118/1.3468320] [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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Ding A, Gu J, Mille M, Xu X, Wang Y, Trofimov A. TH-C-201B-04: Methods to Account for Imaging Doses from Diagnostic MDCT or Kilovoltage CBCT in Prostate Treatment Planning: Monte Carlo Studies Using Scanner Models and Patient-Specific Anatomy. Med Phys 2010. [DOI: 10.1118/1.3469521] [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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Zheng GQ, Zheng ZY, Xu X, Hu ZH. Variation in fruit sugar composition of Lycium barbarum L. and Lycium chinense Mill. of different regions and varieties. BIOCHEM SYST ECOL 2010. [DOI: 10.1016/j.bse.2010.01.008] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Zhao W, Yuan H, Xu X, Ma L. Isolation and Initial Application of a Novel Peptide That Specifically Recognizes the Neural Stem Cells Derived from Rhesus Monkey Embryonic Stem Cells. ACTA ACUST UNITED AC 2010; 15:687-94. [DOI: 10.1177/1087057110370997] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
The search for new receptor ligands is important in the study of embryonic stem (ES) cell differentiation processes. In this study, a novel peptide (HGE VPRFHAVHL) with a specific ability to bind with neural stem cells derived from rhesus monkey ES cells was successfully screened out using a Ph.D-12 peptide phage display library. High affinity and specificity of the HGE phage were shown in an enzyme-linked immunosorbent assay. The binding ability of the phage could be matched with that of a chemically synthesized peptide with a sequence identical to that displayed by the phage, indicating that this binding capability manifests a peptide sequence. Combined with quantum dots, the HGE peptide can be used as a direct tool to show optical imaging of specific binding on a single cell membrane. Further results of Western blot showed that the HGE peptide interacted with 48/34-kDa proteins on the membrane of neural stem cells. This work is the first time that a phage display technique has been applied in ES cell differentiation studies. The findings extend the utilization of a targeting agent for neural stem cells and can also be used as a research tool in studying other cell lineages derived from ES cells.
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Slawsky KA, Goss TF, Shinkle R, Xu X. Economic burden of relapsed/refractory diffuse large B-cell non-Hodgkin's lymphoma (DLBCL): A review of the literature. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e18564] [Citation(s) in RCA: 2] [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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Chen J, Fan M, Jiang G, Fu X, Xie L, Xu X, Zhang G. A comparison of efficacy and toxicity between never-smokers and smokers with lung adenocarcinoma after concurrent gefitinib and thoracic radiotherapy. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.e13586] [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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Clément-Duchêne C, Xu X, Gomez SL, Chang ET, West DW, Wakelee HA, Gould MK. Survival among never and ever smokers with lung cancer in the Cancer Care Outcomes Research and Surveillance Consortium (CanCORS) study. J Clin Oncol 2010. [DOI: 10.1200/jco.2010.28.15_suppl.1595] [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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