251
|
Ellis A, Jacqmin D, McDonald D, Peng J, Koch N, Ashenafi M, Vanek K. TU-C-BRE-06: Effect of Implementing In-House Treatment Couch Model On Patient Specific QA for Pinnacle SmartArc Treatment Plans. Med Phys 2014. [DOI: 10.1118/1.4889269] [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
|
252
|
Peng J, Hu W. SU-E-T-32: An Application of GafChromic RTQA2 Film to the Patient Specified Quality Assurance. Med Phys 2014. [DOI: 10.1118/1.4888362] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
253
|
Hu D, Peng J, Zhang X, Zheng H, Yan S, Zhang Y, Guan Q, Ding Q. Thyroid hormone exacerbates vasoconstriction in insulin resistance: The role of ONOO−. Eur J Pharmacol 2014; 730:41-50. [DOI: 10.1016/j.ejphar.2014.02.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2013] [Revised: 02/14/2014] [Accepted: 02/17/2014] [Indexed: 10/25/2022]
|
254
|
Havel JJ, Li Z, Cheng D, Peng J, Fu H. Nuclear PRAS40 couples the Akt/mTORC1 signaling axis to the RPL11-HDM2-p53 nucleolar stress response pathway. Oncogene 2014; 34:1487-98. [PMID: 24704832 PMCID: PMC4216640 DOI: 10.1038/onc.2014.91] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2013] [Revised: 02/26/2014] [Accepted: 03/01/2014] [Indexed: 12/27/2022]
Abstract
The Ribosomal Protein (RP)-HDM2-p53 pathway has been shown to play key roles in oncogene-induced apoptosis and senescence, but the mechanism regulating this pathway remains elusive. The Proline-Rich Akt Substrate of 40 kDA (PRAS40) has recently been identified as a binding partner and inhibitor of the mechanistic Target of Rapamycin Complex 1 (mTORC1). Although other inhibitors of mTORC1 are known tumor suppressors, PRAS40 promotes cell survival and tumorigenesis. Here we demonstrate that Akt- and mTORC1-mediated phosphorylation of PRAS40 at T246 and S221, respectively, promotes nuclear-specific association of PRAS40 with Ribosomal Protein L11 (RPL11). Importantly, silencing of PRAS40 induces upregulation of p53 in a manner dependent upon RPL11. This effect is rescued by wild type PRAS40, but not by the RPL11 binding-null PRAS40 T246A mutant. We find that PRAS40 negatively regulates the RPL11-HDM2-p53 nucleolar stress response pathway and suppresses induction of p53-mediated cellular senescence. This work identifies nuclear PRAS40 as a dual-input signaling checkpoint that links cell growth and proliferation to inhibition of cellular senescence. These findings may help to explain the pro-tumorigenic effect of PRAS40 and identify the PRAS40-RPL11 complex as a promising target for p53-restorative anti-cancer drug discovery.
Collapse
|
255
|
Song W, Yuan Y, Peng J, Chen J, Han F, Cai S, Zhan W, He Y. The delayed massive hemorrhage after gastrectomy in patients with gastric cancer: characteristics, management opinions and risk factors. Eur J Surg Oncol 2014; 40:1299-306. [PMID: 24731269 DOI: 10.1016/j.ejso.2014.03.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2013] [Revised: 12/02/2013] [Accepted: 03/22/2014] [Indexed: 01/28/2023] Open
Abstract
AIMS This study was designed to investigate the clinical features of delayed massive hemorrhage (DMH) after gastrectomy in patients with gastric cancer (GC). METHODS This study retrospectively reviewed 1536 GC patients with major gastrectomy between 1998 and 2011. Based on the time onset of postoperative bleeding, patients were divided into early postoperative hemorrhage (EPH), delayed massive hemorrhage (DMH), and no-bleeding groups. Postoperative mortality, bleeding treatment, and risk factors of hemorrhage were explored. RESULTS In sum, 15 (0.9%) patients suffered from DMH, with three (20%) dead cases. None of 18 (1.2%) patients with EPH died, but there were three dead cases in no-bleeding group. DMH had more extra-intestinal bleeding (P = 0.037) than EPH. Angiographic embolization was performed in 12 (80%) of DMH patients and successful in ten cases. Surgical procedures were applied in only two embolization-failed cases. Extended lymphadenectomy (P = 0.038), vascular skeletonization (P = 0.012) and advanced TNM stage (P < 0.001) were correlated with DMH. CONCLUSIONS DMH can be successfully managed with angiographic embolization, followed by alternative surgery. Extensive lymphadenectomy and vascular skeletonization should be discreetly performed during gastrectomy.
Collapse
|
256
|
Peng J, Ma SH, Liu J, Hou Y, Liu XM, Niu T, Xu RR, Guo CS, Wang XM, Cheng YF, Ni H, Hou M. Association of autoantibody specificity and response to intravenous immunoglobulin G therapy in immune thrombocytopenia: a multicenter cohort study. J Thromb Haemost 2014; 12:497-504. [PMID: 24517219 DOI: 10.1111/jth.12524] [Citation(s) in RCA: 83] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 01/31/2014] [Indexed: 11/28/2022]
Abstract
BACKGROUND Immune thrombocytopenia (ITP) is a common autoimmune bleeding disorder, in which platelet glycoprotein (GP)IIb-IIIa and GPIb-IX are the two most frequently targeted autoantigens. Our previous studies in animal models of ITP demonstrated that intravenous immunoglobulin G (IVIG) could protect against anti-GPIIb-IIIa autoantibody-mediated thrombocytopenia but failed to ameliorate ITP induced by most anti-GPIb-IX autoantibodies. OBJECTIVES The objective of this human study was to evaluate the association between the specificity of antiplatelet autoantibodies and response to IVIG treatment. PATIENTS/METHODS In this retrospective study, a cohort of 156 previously untreated adults with severe ITP who underwent IVIG therapy (0.4 g kg(-1) day(-1) for 5 days) was analyzed. The primary outcome was response defined as platelet counts of ≥ 30 × 10(9) L(-1) and a doubling of baseline counts within 7 days of dosing, and an absence of bleeding. RESULTS AND CONCLUSIONS Among the 66 patients with anti-GPIb-IX autoantibodies, only 24 (36.4%) achieved a response, as compared with 72 of 90 patients (80.0%) who were negative for anti-GPIb-IX autoantibodies (relative risk 2.2; 95% confidence interval 1.6-3.1). This study found no difference in response between patients with anti-GPIIb-IIIa autoantibodies (61.7%) and those without anti-GPIIb-IIIa autoantibodies (61.3%). Logistic regressions, including main effects and the interaction between these two autoantibodies, showed no influence of anti-GPIIb-IIIa autoantibodies on the effects of anti-GPIb-IX autoantibodies with regard to their association with IVIG response. Thus, in adults with ITP, the presence of anti-GPIb-IX autoantibodies is a predictive factor for poor response to IVIG treatment. TRIAL REGISTRATION ClinicalTrials.gov NCT01666795.
Collapse
|
257
|
Wang J, Hu W, Peng J, Lu S, Zhao J, Xiao Y, Zhang Z. Identical Quality Assurance for Volumetric Modulated Arc Therapy in Elekta and Varian Machines. Technol Cancer Res Treat 2014:tcrt.2012.50041. [PMID: 24645748 DOI: 10.7785/tcrt.2012.500419] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Volumetric modulated arc therapy (VMAT) has been adopted by many clinics for its higher delivery efficiency compared to conventional intensity modulated radiotherapy techniques. Currently, the quality assurance (QA) has remained a challenge in that no identical tests are available for accelerators from different vendors. This study is the first attempt to design identical QA tests for the VMAT technique for Varian and Elekta machines. Identical procedures testing MLC positions and movements, dose rate variations, and gantry positions and movement were created for both machines. These included picket fence (PF), dose rate vs. gantry speed (DRGS) and MLC speed vs. dose rate (MLCDR) tests. Deliverable plans for these tests were made with in-house software that was deliverable for linacs from two vendors (Elekta Synergy and Varian Trilogy). The electronic portal imaging device (EPID) was used for these tests. An automated analysis method was established and software was created to quantitatively evaluate the result. The systematic gap position and width errors from PF tests were within 0.5 mm. We evaluated the detectability of this program for introduced errors down to 0.2 mm. Linear relationships existed between the introduced errors and measured errors. In the DRGS test, 99.8% and 100.0% of the intensity deviations from expected profiles were less than 3% for the Synergy and Trilogy, respectively. For the MLCDR, the intensity deviations from expected profiles less than 3% were 100.0% for Synergy and 98.1% for Trilogy. Identical test series were created and implemented for VMAT accelerators from two vendors. Test results were reported from both accelerators. Comparable results were obtained from both vendors, enabling uniform criteria to be established for VMAT quality assurance.
Collapse
|
258
|
Wang Y, Yin L, Lv G, Xu Y, Xu L, Qi Y, Zheng L, Peng J. Multiple compounds determination and fingerprint analysis ofAgrimonia pilosaLedeb by high-performance liquid chromatography. ACTA CHROMATOGR 2014. [DOI: 10.1556/achrom.26.2014.1.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
259
|
Zhao PW, Liang HZ, Meng J, Peng J, Ring P, Yu LF, Zhang SQ. Tilted axis cranking covariant density functional theory and its applications. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20146602114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
260
|
Westbrook JA, Cairns DA, Peng J, Speirs V, Hanby AM, Holen I, Marshall H, Banks RE, Selby PJ, Coleman RE, Brown JE. Abstract P2-11-07: Proteins predictive of bone metastasis development in breast cancer patients. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-11-07] [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
Bone is the commonest site of metastasis in breast cancer and bone metastasis is associated with skeletal complications and reduced quality of life. Adjuvant use of zoledronic acid (ZA) has been explored to prevent or reduce development of bone metastases. In the large international AZURE trial (N = 3360), early stage (II/III) breast cancer patients were randomised to standard therapy (control arm) or to standard therapy + ZA. There is an unmet need for biomarkers to identify early stage patients at high risk of developing bone metastasis so that therapy can be appropriately targeted. We report a study using proteomics and primary tumour tissue microarrays (TMAs) from patients in the AZURE trial to address this need.
Methods
Bone- and lung-homed variants of the MDA-MB-231 cell line were compared to the parental (non-bone homing) cell type using proteomics (difference gel electrophoresis and mass spectrometry) to identify differentially regulated proteins for clinical validation using TMAs from the AZURE trial. Following characterisation on breast cancer TMAs of different grade, protein expression of candidate biomarkers on AZURE TMAs was assessed semi-quantitatively (low, medium, or high) based on immunohistochemical staining intensity. Statistical analysis investigated associations between protein expression, clinical variables (e.g. ER/PR/HER2 status) and time to local and distant recurrence events (updated to 59 months follow-up).
Results
Over 140 proteins were differentially expressed and two were chosen for validation based on fold change, biological relevance and antibody availability: Macrophage-capping protein (CAPG) and PDZ domain-containing protein GIPC1. Cox proportional hazards regression analysis of 378 AZURE breast tumour samples showed that patients who did not receive ZA were 4.5-fold more likely to develop bone-only metastasis (p = 0.006) if both proteins were highly expressed in the primary tumour (adjusted for systemic therapy plan, ER status, lymph node involvement, Table 1). This effect was not seen in patients who received ZA. Kaplan-Meier analysis indicated that the effect was not linked to menopausal status.
Discussion
We have identified two proteins expressed in primary breast tumours of patients which are significantly associated with subsequent development of bone-only metastases and appear to predict for benefit from ZA. Biologically, the two proteins are reported to be involved in cellular structures and signalling, and are implicated in cancers, but their association with breast cancer bone metastasis appears to be novel. Ongoing analysis will extend validation in a further AZURE TMA sample set. These proteins have potential as biomarkers to predict development of bone metastasis.
Table 1: Cox proportional hazards regressions for breast cancer patients with high expression of CAPG and GIPC1 protein in primary tumour cells ArmN (events)HR95% CIp OV691.4520.673-3.1330.342Any distant recurrenceC341.2110.542-2.7040.641 ZA351.2400.468-3.2870.665 OV313.0361.150-8.0170.025Skeletal and other distant metastasesC172.9721.119-7.8890.029 ZA140.9780.214-4.4700.977 OV214.4461.547-12.7800.006Skeletal metastases onlyC144.4491.545-12.8080.006 ZA71.0560.122-9.1540.961Arm: OV, Overall, n = 378; C, Control, n = 191; ZA, n = 187
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-11-07.
Collapse
|
261
|
Peng J, Yuan Y, Zhang Z, Cui W, Song W, Gao B. Microsurgical vasoepididymostomy is an effective treatment for azoospermic patients with epididymal obstruction and prior failure to achieve pregnancy by sperm retrieval with intracytoplasmic sperm injection. Hum Reprod 2013; 29:1-7. [DOI: 10.1093/humrep/det385] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
262
|
Huang F, Liu H, Sun H, Peng J. Effects of lysine and protein intake over two consecutive lactations on lactation and subsequent reproductive performance in multiparous sows. Livest Sci 2013. [DOI: 10.1016/j.livsci.2013.07.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
263
|
Zhu Y, Yuan M, Meng HY, Wang AY, Guo QY, Wang Y, Peng J. Basic science and clinical application of platelet-rich plasma for cartilage defects and osteoarthritis: a review. Osteoarthritis Cartilage 2013; 21:1627-37. [PMID: 23933379 DOI: 10.1016/j.joca.2013.07.017] [Citation(s) in RCA: 239] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2013] [Revised: 07/26/2013] [Accepted: 07/30/2013] [Indexed: 02/02/2023]
Abstract
Cartilage defects (CDs) and the most common joint disease, osteoarthritis (OA), are characterized by degeneration of the articular cartilage that ultimately leads to joint destruction. Current treatment strategies are inadequate: none results in restoration of fully functional hyaline cartilage, for uncertain long-term prognosis. Tissue engineering of cartilage with auto-cartilage cells or appropriate mesenchymal stem cell (MSC)-derived cartilage cells is currently being investigated to search for new therapies. Platelet-rich plasma (PRP), an autologous source of factors obtained by centrifugation, possesses various functions. For culture of MSCs and cartilage cells, it might be substituted for fetal bovine serum (FBS) with high efficiency and safety. It enhances the regeneration of cartilage cells when added to cartilage tissue engineering constructs for repairing CDs and as regenerative injection therapy for OA. But challenges also remain. Some of the growth factors (GFs) present in PRP have negative effects on the OA joint. It is therefore unlikely that a mix of GFs some of which have negative effects in the OA joint, as present in PRP, will be of benefit in OA. Future directions of PRP application may concentrate on seeking an appropriate and innocuous agent like anti-VEGF antibody that can modulate and control the effect of PRP.
Collapse
|
264
|
|
265
|
Ortmann JE, Liu JY, Hu J, Zhu M, Peng J, Matsuda M, Ke X, Mao ZQ. Competition between antiferromagnetism and ferromagnetism in Sr2RuO4 probed by Mn and Co doping. Sci Rep 2013; 3:2950. [PMID: 24126684 PMCID: PMC3796744 DOI: 10.1038/srep02950] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Accepted: 09/30/2013] [Indexed: 12/02/2022] Open
Abstract
Spin-triplet superconductivity in Sr2RuO4 has attracted enormous interest. Like other unconventional superconductors, superconductivity in Sr2RuO4 is in close proximity to magnetic instability. Undoped Sr2RuO4 exhibits incommensurate antiferromagnetic (AFM) fluctuations, which can evolve into static, short-range AFM order via Ti doping. Moreover, weak ferromagnetic (FM) coupling in Sr2RuO4 has also been suggested by NMR/neutron scattering experiments and studies on Ca2−xSrxRuO4 and Sr2−yLayRuO4, implying orbital dependent magnetism. We report bulk static, short-range FM order in Sr2RuO4 triggered by <2% Co doping, showing superconductivity in Sr2RuO4 is much closer to FM instability than previously reported in Ca2−xSrxRuO4. We also find Mn doping can effectively establish incommensurate AFM order, with TN ~ 50 K for 3% Mn doping. These new results place Sr2RuO4 in a unique situation where superconductivity lies directly on the borderline of two distinct magnetic states, highlighting the important role of competing magnetic fluctuations in determining superconducting properties of Sr2RuO4.
Collapse
|
266
|
Peng J, Robache PF, Eymard F, Willaume P, Varlet P, Wateau JL. Étude sur les délais de prise en charge des cancers du sein post-dépistage organisé dans le département de l’Aisne, France. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.07.248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
267
|
Chateil S, Delattre-Massy H, De Seze C, Peng J, Fabien D, Descombes P. Étude-action pour améliorer les taux de dépistage du cancer du sein en Picardie. Rev Epidemiol Sante Publique 2013. [DOI: 10.1016/j.respe.2013.07.175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
|
268
|
Risinger AL, Li J, Bennett MJ, Rohena CC, Peng J, Schriemer DC, Mooberry SL. Taccalonolide binding to tubulin imparts microtubule stability and potent in vivo activity. Cancer Res 2013; 73:6780-92. [PMID: 24048820 DOI: 10.1158/0008-5472.can-13-1346] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The taccalonolides are highly acetylated steroids that stabilize cellular microtubules and overcome multiple mechanisms of taxane resistance. Recently, two potent taccalonolides, AF and AJ, were identified that bind to tubulin directly and enhance microtubule polymerization. Extensive studies were conducted to characterize these new taccalonolides. AF and AJ caused aberrant mitotic spindles and bundling of interphase microtubules that differed from the effects of either paclitaxel or laulimalide. AJ also distinctly affected microtubule polymerization in that it enhanced the rate and extent of polymerization in the absence of any noticeable effect on microtubule nucleation. In addition, the resulting microtubules were found to be profoundly cold stable. These data, along with studies showing synergistic antiproliferative effects between AJ and either paclitaxel or laulimalide, suggest a distinct binding site. Direct binding studies demonstrated that AJ could not be displaced from microtubules by paclitaxel, laulimalide, or denaturing conditions, suggesting irreversible binding of AJ to microtubules. Mass spectrometry confirmed a covalent interaction of AJ with a peptide of β-tubulin containing the cyclostreptin-binding sites. Importantly, AJ imparts strong inter-protofilament stability in a manner different from other microtubule stabilizers that covalently bind to tubulin, consistent with the distinct effects of the taccalonolides as compared with other stabilizers. AF was found to be a potent and effective antitumor agent that caused tumor regression in the MDA-MB-231 breast cancer xenograft model. The antitumor efficacy of some taccalonolides, which stabilize microtubules in a manner different from other microtubule stabilizers, provides the impetus to explore the therapeutic potential of this site.
Collapse
|
269
|
Peng J, Wang X, Denninger L, Panda J, Van Sint Jan S. Hip joint centre location from anatomical landmarks for automotive seated posture reconstruction. Comput Methods Biomech Biomed Engin 2013; 16 Suppl 1:195-7. [DOI: 10.1080/10255842.2013.815895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
270
|
Peng J, Jacqmin D, McDonald D, Koch N, Ashenafi M, Vanek K. SU-E-J-54: The Characterization of a 3D Real-Time Surface System with a Single High-Definition (HD) Camera. Med Phys 2013. [DOI: 10.1118/1.4814266] [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
|
271
|
Jacqmin D, Vanek K, McDonald D, Peng J, Ashenafi M, Koch N, Jenrette J. SU-E-T-91: The Effect of Phantom Setup Uncertainties On Gantry Angle Correction Factors for MatriXX Evolution. Med Phys 2013. [DOI: 10.1118/1.4814526] [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
|
272
|
Peng J, Ashenafi M, McDonald D, Jacqmin D, Koch N, Vanek K. SU-E-T-57: Assessment of Systematic Uncertainties On Beam Data Collection Using Blue Phantom HelixTM Tomotherapy Scanning System. Med Phys 2013. [DOI: 10.1118/1.4814492] [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
|
273
|
McDonald D, Peng J, Koch N, Ashenafi M, Jacqmin D, Jenrette J, Takacs I, Vanek K. TH-A-137-05: Evaluation of Dose Spillage From the Gamma Knife Perfexion Vs Volumetric Modulated Arc Radiosurgery When Treating Multiple Metastases in a Single Fraction. Med Phys 2013. [DOI: 10.1118/1.4815687] [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
|
274
|
Peng J, Hu W. SU-E-T-156: A Novel Patient Quality Assurance System for Both Outer and Inner Dose Verification in Volumetric Modulated Arc Therapy. Med Phys 2013. [DOI: 10.1118/1.4814591] [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
|
275
|
Yang Q, Liu H, Qu L, Fu X, Yu Y, Yu G, Tian H, Yu Y, Sun D, Peng J, Bao F, Yuan C, Lu N, Li J, Zhang Y, Zhang F. Investigation of 20 non-HLA (human leucocyte antigen) psoriasis susceptibility loci in Chinese patients with psoriatic arthritis and psoriasis vulgaris. Br J Dermatol 2013; 168:1060-5. [PMID: 23252691 DOI: 10.1111/bjd.12142] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Recently, a number of non-HLA (human leucocyte antigen) psoriasis genetic susceptibility loci have been identified through genome-wide association studies, but data on their association with psoriatic arthritis (PsA) are lacking. OBJECTIVES To investigate recently identified psoriasis susceptibility loci in a cohort of Chinese patients with PsA, psoriasis vulgaris (PsV) and healthy controls. METHODS Twenty single-nucleotide polymorphisms (SNPs) from 20 loci were selected for genotyping in 379 patients with PsA, 595 patients with PsV and 1181 healthy controls using the MassARRAY platform (Sequenom, San Diego, CA, U.S.A.). Data handling, quality control and association were performed using PLINK software, v. 1.07. The Cochran-Armitage trend test was used to test the genotype-phenotype association. RESULTS PsA showed a significant association with markers at TNIP1 (rs17728338, P = 2.20 × 10(-8)), IL28RA (rs4649203, P = 5.04 × 10(-6)), IL12B (rs2082412, P = 3.82 × 10(-5)), ERAP1 (rs27524, P = 1.25 × 10(-3)), PTTG1 (rs2431697, P = 1.22 × 10(-3)) and GJB2 (rs3751385, P = 1.48 × 10(-3)) when compared with the control group. In PsV a significant association was found for IL28RA (rs4649203, P = 9.53 × 10(-7)), TNIP1 (rs17728338, P = 1.21 × 10(-4)) and ERAP1 (rs27524, P = 1.17 × 10(-3)). The allele frequencies were not statistically different between PsA and PsV except for SNPs at IL12B and ZNF816A with a nominal P-value of 0.04 and 0·01, respectively. CONCLUSIONS This study provides evidence for the involvement of ERAP1, IL28RA, GJB2 and PTTG1 loci in PsA susceptibility and confirmed the previously reported association with PsA and PsV. These results support the hypothesis that genetic aetiology of psoriasis is the same in both PsA and PsV and also support the higher genetic component of PsA than PsV.
Collapse
|