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Valdes G, Lamb J, Low D, Lee P, Iwamoto K. SU-E-T-414: 4D Vs 3D Dose Calculations for Non-Small-Lung-Cancer: A Comparison Using Tumor Control Probability (TCP). Med Phys 2013. [DOI: 10.1118/1.4814848] [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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Lamb J, Reyhan M, Agazaryan N, Low D. WE-E-141-10: Automated Patient Identification and Localization Error Detection Using X-Ray Setup Images. Med Phys 2013. [DOI: 10.1118/1.4815601] [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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Wu X, Jani S, Dahlbom M, Low D, Lamb J. SU-E-I-84: Comparing the Accuracy of the Bilateral Filter and Gaussian Filter for PET Image Post-Processing Through a Phantom Study. Med Phys 2013. [DOI: 10.1118/1.4814195] [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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Thomas D, White B, Gaudio S, Jani S, Lee P, Lamb J, Low D. MO-F-WAB-07: A Novel 4D CT Acquisition and Analysis Technique to Account for the Effect of Cardiac Induced Lung Tissue Motion During Free Breathing. Med Phys 2013. [DOI: 10.1118/1.4815296] [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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White B, Thomas D, Lamb J, Jani S, Gaudio S, Min Y, Srinivasan S, Ennis D, Santhanam A, Low D. WE-A-134-08: Modeling Cardiac Induced Lung Tissue Motion for a Quantitative Breathing Motion Model. Med Phys 2013. [DOI: 10.1118/1.4815514] [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
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Jani S, Dahlbom M, White B, Thomas D, Gaudio S, Low D, Lamb J. SU-D-500-05: Comparison of Gating Algorithms in 4D-PET for Mobile Tumor Segmentation. Med Phys 2013. [DOI: 10.1118/1.4814022] [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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Gaudio S, Thomas D, White B, Jani S, Lee P, Lamb J, Low D. SU-E-J-138: Breathing Motion Model Comparison Inside and Outside the Lung. Med Phys 2013. [DOI: 10.1118/1.4814350] [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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Aliotta E, Thomas D, Gaudio S, White B, Jani S, Lee P, Lamb J, Low D. TU-C-141-06: Improving Image Quality in 4D-CT Scans Using Deformable Registration and Selective Averaging. Med Phys 2013. [DOI: 10.1118/1.4815383] [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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Low D, Thomas D, White B, Gaudio S, Jani S, Lee P, Lamb J. SU-E-J-126: Development of a Prospective Gating Algorithm for a Novel 4DCT Technique: Retrospective Data Analysis. Med Phys 2013. [DOI: 10.1118/1.4814338] [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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Valdes G, Iwamoto K, Lee P, Low D, Robinson C, Lamb J. SU-E-T-435: 4D MIMVista Workflow Vs 4D Dose Calculations Based On a Monte Carlo Method. Med Phys 2013. [DOI: 10.1118/1.4814869] [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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Thomas D, White B, Gaudio S, Jani S, Lee P, Lamb J, Low D. TU-G-141-01: BEST IN PHYSICS (JOINT IMAGING-THERAPY)-A Novel 4D CT Acquisition and Analysis Technique to Generate Low Noise Artifact-Free Images at User Selected Breathing Phases. Med Phys 2013. [DOI: 10.1118/1.4815461] [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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Ellison S, Lamb J, Haines A, O'Dell S, Thomas G, Sethi S, Ratcliffe J, Chisholm S, Vaughan J, Mahadevan V. A guide for identification and continuing care of adult congenital heart disease patients in primary care. Int J Cardiol 2013; 163:260-265. [DOI: 10.1016/j.ijcard.2011.06.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2011] [Accepted: 06/05/2011] [Indexed: 11/26/2022]
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Lamb J, Dawson SI, Gagan MJ, Peddie D. Cigarette smoking and the frequency of colposcopy visits, treatments and re-referral. NURSING PRAXIS IN NEW ZEALAND INC 2013; 29:24-33. [PMID: 23691758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Current research has confirmed that cigarette smoking is a risk factor for cervical cancer. Although more recently, there has been a slight decline in smoking rates, the relationship between tobacco use and cervical cancer remains clear. The development of research-based knowledge with which to inform the profession will assist practitioners to promote smoke-free practices for women and their families. The aim of this study was to identify whether female smokers referred to the colposcopy department at a city hospital required more follow-up visits, treatments and re-referrals than did nonsmokers. This retrospective descriptive study observed new patients (n= 494) who attended a city hospital colposcopy department in 2001 over the following six years. When compared to non-smokers women who smoked were found to be three times more likely to need a third follow-up visit, and twice more likely to need further treatments to remove abnormalities. This study also identified that 71% of Miori women attending the clinic were smokers compared to 44% of non-Maori women. It was also found that MSori women were less likely to attend the colposcopy clinic than were non-Maori. This study highlights to health professionals and to the women who undergo colposcopy, that treatment is more likely to be successful for patients who cease smoking. The results have also supported the importance and relevance of smoke-free education to women. This allows the link to cervical abnormalities and smoking to be explained and smoking cessation assistance offered. This information also highlights the need for Maori women, who are more likely to smoke and have higher rates of non-attendance for appointments, to have services provided that will encourage attendance and smoke-free behaviour.
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Low D, Lamb J, Lee P, Thomas D, White B. OC-0058: A novel 4DCT technique for breathing motion modeling. Radiother Oncol 2013. [DOI: 10.1016/s0167-8140(15)32364-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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White B, Santhanam A, Wang Z, Jani S, Lamb J, Ennis D, Ruan D, Low D. Addition of Cardiac Motion in a Breathing Motion Model. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.1996] [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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Lamb J, Chao E, Kamrava M, Demanes J, McCannel T, Low D. TU-E-BRA-07: Post-Operative Eye Plaque Imaging Using Tomotherapy MVCT. Med Phys 2012; 39:3912. [PMID: 28518681 DOI: 10.1118/1.4735967] [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
PURPOSE Intra-operative ultrasound is used to verify the positioning of episcleral eye plaques used to treat ocular melanoma. Ultrasound can be ambiguous because of image artifacts, and plaques may shift position after surgery. Ultrasound verification is particularly challenging for anterior tumors. Post-operative imaging could be used to trigger interventions that would prevent local treatment failure. We investigated if, and under what conditions, the Tomotherapy megavoltage computed tomography (MVCT) system could be used to perform post-implantation verification of eye plaque positioning. METHODS Plaques were placed on a preserved cow's eye, and imaged with the megavoltage CT of a Tomotherapy linear accelerator (Accuray, Sunnyvale, CA). The images were visually and quantitatively assessed to determine if they were of sufficient quality to verify tumor coverage and plaque tilt with respect to the sclera. We used the visibility of the lens as a proxy for visibility of a tumor. To test the utility of hypothetical higher beam current Tomotherapy images, we averaged sequential images of the same setup. RESULTS The plaque, the lens of the eye, and the globe are visible in the images. The CNR of the lens with respect to the vitreous was 5.6 for a single image. For 10 images averaged, the CNR was 9.2. Estimated dose from a single image was 1.3 cGy (body CTDIvol); even 10 times this dose would be an acceptable image-guidance dose for radiotherapy patients. One limitation of the imaging procedure is the long scan time (up to 240 seconds), during which time any significant patient motion would lead to image artifacts. Human trials on eye plaque patients are planned. CONCLUSIONS Tomotherapy MVCT imaging could be used to verify tumor coverage and plaque tilt after episcleral plaque implantation. Tumors should be visible in standard Tomotherapy images but higher beam current images would be preferred if available.
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Jani S, Lamb J, Dahlbom M, Robinson C, White B, Low D. WE-G-213CD-02: 4D-PET Maximum Intensity Projections Improve Accuracy of Mobile Tumor Volume Delineation. Med Phys 2012; 39:3970-3971. [DOI: 10.1118/1.4736203] [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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Lamb J, Lee P, Jani S, Dahlbom M, White B, Low D. SU-E-J-169: 4D-PET for Abdominal Tumor Target Volume Generation. Med Phys 2012; 39:3691. [PMID: 28518934 DOI: 10.1118/1.4735008] [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
PURPOSE To examine the impact of 4D-PET on target volume delineation of upper-abdominal tumors, versus conventional un-gated PET. METHODS Four patients with upper-abdominal tumors underwent respiratory-correlated FDG PET/CT scanning (4D-PET) as part of a continuing IRB-approved research protocol. Internal target volumes of FDG-avid tumors were contoured on the 4D-PET and conventional un-gated PET by a radiation oncologist who is a specialist in gastro-intestinal tumors. To create the 4D-PET ITV, the end-inhale and end-exhale 4D-PET phases were used. The relative volumes and volumetric overlaps of the 4D and un-gated target volumes were examined. Additionally, 4D-PET was used to measure the motion of the tumors. RESULTS Of the four patients who were imaged, one showed minimal motion (〈 3 mm in any direction) and one showed minimal FDG avidity; these were removed from further analysis. Of the two tumors which showed significant motion and FDG uptake, 4D-PET volumes were 28% and 21% larger than un-gated PET volumes. The un-gated PET volumes were almost entirely contained within the 4D-PET volumes (95% and 93% for the two tumors). Tumors appeared to deform as well as translate with breathing, although this could be due to varying intra-gate motion rather than actual physiological deformation. The superior-inferior borders of the tumors exhibited the most motion, with displacements of 5.6 mm and 6.4 mm. CONCLUSIONS 4D-PET can be used to estimate the motion of FDG-avid upper-abdominal tumors. Use of 4D-PET increases the size of target volumes compared to un-gated PET in a subset of upper-abdominal cancer patients. Direct measurement of tumor motion and deformation by 4D-PET imaging could allow the use of patient-specific margins rather than population-based margins, potentially leading to increased target coverage and reduced normal tissue irradiation.
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Hammond C, Velard F, Ah Kioon MD, Come D, Hafsia N, Lin H, Ea HK, Liote F, Dudek M, Wallis GA, Paton K, Harris J, Kendall DA, Kelly S, Mercer L, Galloway J, Low A, Watson K, Lunt M, Dixon W, Symmons D, Hyrich K, Ntatsaki E, Watts RA, Mooney J, Scott DGI, Humphreys J, Verstappen SM, Marshall T, Lunt M, Hyrich K, Symmons DP, Khan A, Scott DL, Abraham A, Pearce MS, Mann KD, Francis RM, Birrell F, Moinzadeh P, Fonseca C, Hellmich M, Shah A, Chighizola C, Denton CP, Ong V, Croia C, Bombardieri M, Francesca A, Serafini B, Humby F, Kelly S, Migliorini P, Pitzalis C, Miles K, Heaney J, Sibinska Z, Salter D, Savill J, Gray D, Gray M, Jones GW, Greenhill CJ, Williams AS, Nowell MA, Jenkins BJ, Jones SA, McGovern J, Nguyen DX, Notley CA, Mauri C, Isenberg D, Ehrenstein M, Jacklin C, Bosworth AM, Bateman J, Allen M, Samani D, Davies D, Harris HE, Brannan S, Venters G, McQuillian A, Lovegrove F, Gibson J, Chinn D, Mclaren JS, Gordhan C, Stack RJ, Kumar K, Awad I, Raza K, Bacon P, Arkell P, Ryan S, Brownfield A, Packham J, Jacklin C, Bosworth AM, Wilkinson K, Roberts KJ, Moots RJ, Edwards SW, Headland SE, Perretti M, Norling L, Dalli J, Flower R, Serhan C, Perretti M, Naylor A, Azzam E, Smith S, Croft A, Duffield J, Huso D, Gay S, Ospelt C, Cooper M, Isacke C, Goodyear S, Rogers M, Buckley C, Greenhill CJ, Williams AS, Jones GW, Nowell MA, Moideen AN, Rosas M, Taylor PR, Humphreys IR, Jones SA, Vattakuzhi Y, Horwood NJ, Clark AR, Mueller AJ, Laird EG, Tew SR, Clegg PD, Orozco G, Eyre S, Bowes J, Flynn E, Barton A, Worthington J, Eyre S, Bowes J, Barton A, Amos C, Diogo D, Lee A, Padyukov L, Stahl EA, Martin J, Rantapaa-Dahlqvist S, Raychaudhuri S, Plenge R, Klareskog L, Gregersen P, Worthington J, Jani M, Chinoy H, Lamb J, Hazel P, Wedderburn L, Vencovsky J, Danko K, Lundberg I, O'Callaghan AS, Radstake T, Ollier WER, Cooper RG, Cobb J, Hinks A, Bowes J, Steel K, Sudman M, Marion MC, Keddache M, Wedderburn LR, Haas JP, Glass DN, Langefeld CD, Thomson W, Thompson SD, Cobb J, Hinks A, Flynn E, Hirani S, Patrick F, Kassoumeri L, Ursu S, Moncrieffe H, Bulatovic M, Bohm M, van Zelst B, Dolezalova P, de Jonge R, Wulffraat N, Newman S, Thomson W, Wedderburn L. Oral abstracts 7: Molecular mechanisms of disease--osteoarthritis * S1. Identification of novel osteoarthritis genes using zebrafish. Rheumatology (Oxford) 2012. [DOI: 10.1093/rheumatology/kes117] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Cieslik L, Khabani A, Khabani C, Dunsmoor-Su R, Lamb J, Hickok L. Assisted Hatching of the Zona Pellucida Prior to Embryo Transfer in Fresh Donor Egg IVF Cycles. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.01.081] [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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Lamb J, Robinson C, Jani S, Laforest R, Bradley J, Dehdashti F, White B, Dahlbom M, Lee P, Low D. Comparison of 4D-PET Gating Methods with Regards to Determining Internal Target Volumes of Mobile Lung Tumors. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1436] [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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White B, Lamb J, Zhao T, Jani S, Low D. Distribution of Tissue Divergence in the Apex of the Lung. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Lara R, Mauri FA, Taylor H, Derua R, Shia A, Gray C, Nicols A, Shiner RJ, Schofield E, Bates PA, Waelkens E, Dallman M, Lamb J, Zicha D, Downward J, Seckl MJ, Pardo OE. An siRNA screen identifies RSK1 as a key modulator of lung cancer metastasis. Oncogene 2011; 30:3513-21. [PMID: 21423205 DOI: 10.1038/onc.2011.61] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2010] [Revised: 11/29/2010] [Accepted: 02/02/2011] [Indexed: 12/17/2022]
Abstract
We performed a kinome-wide siRNA screen and identified 70 kinases altering cell migration in A549 lung cancer cells. In particular, ribosomal S6 kinase 1 (RSK1) silencing increased, whereas RSK2 and RSK4 downregulation inhibited cell motility. In a secondary collagen-based three-dimensional invasion screen, 38 of our hits cross-validated, including RSK1 and RSK4. In two further lung cancer cell lines, RSK1 but not RSK4 silencing showed identical modulation of cell motility. We therefore selected RSK1 for further investigation. Bioinformatic analysis followed by co-immunoprecipitation-based validation revealed that the actin regulators VASP and Mena interact with RSK1. Moreover, RSK1 phosphorylated VASP on T278, a site regulating its binding to actin. In addition, silencing of RSK1 enhanced the metastatic potential of these cells in vivo using a zebrafish model. Finally, we investigated the relevance of this finding in human lung cancer samples. In isogenically matched tissue, RSK1 was reduced in metastatic versus primary lung cancer lesions. Moreover, patients with RSK1-negative lung tumours showed increased number of metastases. Our results suggest that the findings of our high-throughput in vitro screen can reliably identify relevant clinical targets and as a proof of principle, RSK1 may provide a biomarker for metastasis in lung cancer patients.
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White B, Zhao T, Jani S, Lamb J, Bradley J, Low D. SU-E-T-511: Distribution of Hysteresis Magnitude during Free Breathing. Med Phys 2011. [DOI: 10.1118/1.3612464] [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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Lamb J, Santhanam A, Laforest R, Min Y, Dehdashti F, Robinson C, Bradley J, White B, Low D. TU-E-BRC-04: High-Statistics Breathing Motion-Corrected Positron Emission Tomography by Deforming and Stacking Gated PET Images Using 4DCT-Derived Motion Vectors. Med Phys 2011. [DOI: 10.1118/1.3613191] [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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Lamb J, Robinson C, Bradley J, Dehdashti F, Laforest R, White B, Low D. SU-E-T-285: Generating Lung Tumor Internal Target Volumes from 4D-PET Maximum Intensity Projections. Med Phys 2011. [DOI: 10.1118/1.3612236] [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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Schneider A, LaRusch J, Sun X, Aloe A, Lamb J, Hawes R, Cotton P, Brand RE, Anderson MA, Money ME, Banks PA, Lewis MD, Baillie J, Sherman S, DiSario J, Burton FR, Gardner TB, Amann ST, Gelrud A, George R, Kassabian S, Martinson J, Slivka A, Yadav D, Oruc N, Barmada MM, Frizzell R, Whitcomb DC, Whitcomb DC. Combined bicarbonate conductance-impairing variants in CFTR and SPINK1 variants are associated with chronic pancreatitis in patients without cystic fibrosis. Gastroenterology 2011; 140:162-71. [PMID: 20977904 PMCID: PMC3171690 DOI: 10.1053/j.gastro.2010.10.045] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2010] [Revised: 09/14/2010] [Accepted: 10/15/2010] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS Idiopathic chronic pancreatitis (ICP) is a complex inflammatory disorder associated with multiple genetic and environmental factors. In individuals without cystic fibrosis (CF), variants of CFTR that inhibit bicarbonate conductance but maintain chloride conductance might selectively impair secretion of pancreatic juice, leading to trypsin activation and pancreatitis. We investigated whether sequence variants in the gene encoding the pancreatic secretory trypsin inhibitor SPINK1 further increase the risk of pancreatitis in these patients. METHODS We screened patients and controls for variants in SPINK1 associated with risk of chronic pancreatitis and in all 27 exons of CFTR. The final study group included 53 patients with sporadic ICP, 27 probands with familial ICP, 150 unrelated controls, 375 additional controls for limited genotyping. CFTR wild-type and p.R75Q were cloned and expressed in HEK293 cells, and relative conductances of HCO(3)(-) and Cl(-) were measured. RESULTS SPINK1 variants were identified in 36% of subjects and 3% of controls (odds ratio [OR], 18.1). One variant of CFTR not associated with CF, p.R75Q, was found in 16% of subjects and 5.3% of controls (OR, 3.4). Coinheritance of CFTR p.R75Q and SPINK1 variants occurred in 8.75% of patients and 0.38% of controls (OR, 25.1). Patch-clamp recordings of cells that expressed CFTR p.R75Q showed normal chloride currents but significantly reduced bicarbonate currents (P = .0001). CONCLUSIONS The CFTR variant p.R75Q causes a selective defect in bicarbonate conductance and increases risk of pancreatitis. Coinheritance of p.R75Q or CF causing CFTR variants with SPINK1 variants significantly increases the risk of ICP.
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Whitcomb DC, Muddana V, Langmead CJ, Houghton FD, Guenther A, Eagon PK, Mayerle J, Aghdassi AA, Weiss FU, Evans A, Lamb J, Clermont G, Lerch MM, Papachristou GI. Angiopoietin-2, a regulator of vascular permeability in inflammation, is associated with persistent organ failure in patients with acute pancreatitis from the United States and Germany. Am J Gastroenterol 2010; 105:2287-92. [PMID: 20461065 DOI: 10.1038/ajg.2010.183] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVES Patients with severe acute pancreatitis (AP) typically develop vascular leak syndrome, resulting in hemoconcentration, hypotension, pulmonary edema, and renal insufficiency. Angiopoietin-1 (Ang-1) and 2 (Ang-2) are autocrine peptides that reduce or increase endothelial permeability, respectively. The aim of this study was to determine whether Ang-1 and/or Ang-2 levels are predictive biomarkers of persistent organ failure (>48 h) and prolonged hospital course. METHODS Banked serum from 28 patients enrolled in the Severity of Acute Pancreatitis Study at the University of Pittsburgh Medical Center (UPMC) and 58 controls was analyzed for Ang-1 and Ang-2 levels. Separately, serum from 123 patients and 103 controls at Greifswald University (GU), Germany was analyzed for Ang-2 levels. Angiopoietin levels were measured by enzyme-linked immunosorbent assay. RESULTS In all, 6 out of 28 UPMC patients (21%) and 14 out of 123 GU patients (13%) developed persistent organ failure and were classified as severe AP. Ang-2 was significantly higher on admission in patients who developed persistent organ failure compared with those who did not in UPMC (3,698 pg/ml vs. 1,001 pg/ml; P=0.001) and GU (4,945 pg/ml vs. 2,631 pg/ml; P=0.0004) cohorts. After data scaling, admission Ang-2 levels showed a receiver-operator curve of 0.81, sensitivity 90%, and specificity 67% in predicting persistent organ failure. In addition, Ang-2 levels remained significantly higher in severe AP compared with mild AP patients until day 7 (days 2-4: P<0.005; day 7: P<0.02). Ang-1 levels were not significantly different between mild and severe AP patients on admission. CONCLUSIONS Elevated serum Ang-2 levels on admission are associated with and may be a useful biomarker of predicting persistent organ failure and ongoing endothelial cell activation in AP.
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Khachatryan V, Sirunyan AM, Tumasyan A, Adam W, Bergauer T, Dragicevic M, Erö J, Fabjan C, Friedl M, Frühwirth R, Ghete VM, Hammer J, Hänsel S, Hoch M, Hörmann N, Hrubec J, Jeitler M, Kasieczka G, Kiesenhofer W, Krammer M, Liko D, Mikulec I, Pernicka M, Rohringer H, Schöfbeck R, Strauss J, Taurok A, Teischinger F, Waltenberger W, Walzel G, Widl E, Wulz CE, Mossolov V, Shumeiko N, Suarez Gonzalez J, Benucci L, Ceard L, De Wolf EA, Hashemi M, Janssen X, Maes T, Mucibello L, Ochesanu S, Roland B, Rougny R, Selvaggi M, Van Haevermaet H, Van Mechelen P, Van Remortel N, Adler V, Beauceron S, Blyweert S, D'Hondt J, Devroede O, Kalogeropoulos A, Maes J, Maes M, Tavernier S, Van Doninck W, Van Mulders P, Villella I, Chabert EC, Charaf O, Clerbaux B, De Lentdecker G, Dero V, Gay APR, Hammad GH, Marage PE, Vander Velde C, Vanlaer P, Wickens J, Costantini S, Grunewald M, Klein B, Marinov A, Ryckbosch D, Thyssen F, Tytgat M, Vanelderen L, Verwilligen P, Walsh S, Zaganidis N, Basegmez S, Bruno G, 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A, Lazaridis C, Leonard J, Lomidze D, Loveless R, Mohapatra A, Polese G, Reeder D, Savin A, Smith WH, Swanson J, Weinberg M. First measurement of Bose-Einstein correlations in proton-proton collisions at √s=0.9 and 2.36 TeV at the LHC. PHYSICAL REVIEW LETTERS 2010; 105:032001. [PMID: 20867758 DOI: 10.1103/physrevlett.105.032001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Indexed: 05/29/2023]
Abstract
Bose-Einstein correlations have been measured using samples of proton-proton collisions at 0.9 and 2.36 TeV center-of-mass energies, recorded by the CMS experiment at the CERN Large Hadron Collider. The signal is observed in the form of an enhancement of pairs of same-sign charged particles with small relative four-momentum. The size of the correlated particle emission region is seen to increase significantly with the particle multiplicity of the event.
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J, Wöhri HK, Altsybeev I, Belotelov I, Bunin P, Finger M, Finger M, Golutvin I, Kamenev A, Karjavin V, Kozlov G, Lanev A, Moisenz P, Palichik V, Perelygin V, Shmatov S, Smirnov V, Volodko A, Zarubin A, Bondar N, Golovtsov V, Ivanov Y, Kim V, Levchenko P, Smirnov I, Sulimov V, Uvarov L, Vavilov S, Vorobyev A, Andreev Y, Gninenko S, Golubev N, Kirsanov M, Krasnikov N, Matveev V, Pashenkov A, Toropin A, Troitsky S, Epshteyn V, Gavrilov V, Ilina N, Kaftanov V, Kossov M, Krokhotin A, Kuleshov S, Oulianov A, Safronov G, Semenov S, Shreyber I, Stolin V, Vlasov E, Zhokin A, Boos E, Dubinin M, Dudko L, Ershov A, Gribushin A, Kodolova O, Lokhtin I, Obraztsov S, Petrushanko S, Sarycheva L, Savrin V, Snigirev A, Andreev V, Dremin I, Kirakosyan M, Rusakov SV, Vinogradov A, Azhgirey I, Bitioukov S, Datsko K, Grishin V, Kachanov V, Konstantinov D, Krychkine V, Petrov V, Ryutin R, Slabospitsky S, Sobol A, Sytine A, Tourtchanovitch L, Troshin S, Tyurin N, Uzunian A, Volkov A, Adzic P, Djordjevic M, Krpic D, Maletic D, Milosevic J, Puzovic J, Aguilar-Benitez M, Alcaraz Maestre J, Arce P, Battilana C, Calvo E, Cepeda M, Cerrada M, Chamizo Llatas M, Colino N, De La Cruz B, Diez Pardos C, Fernandez Bedoya C, Fernández Ramos JP, Ferrando A, Flix J, Fouz MC, Garcia-Abia P, Gonzalez Lopez O, Goy Lopez S, Hernandez JM, Josa MI, Merino G, Puerta Pelayo J, Redondo I, Romero L, Santaolalla J, Willmott C, Albajar C, de Trocóniz JF, Cuevas J, Fernandez Menendez J, Gonzalez Caballero I, Lloret Iglesias L, Vizan Garcia JM, Cabrillo IJ, Calderon A, Chuang SH, Diaz Merino I, Diez Gonzalez C, Duarte Campderros J, Fernandez M, Gomez G, Gonzalez Sanchez J, Gonzalez Suarez R, Jorda C, Lobelle Pardo P, Lopez Virto A, Marco J, Marco R, Martinez Rivero C, Martinez Ruiz del Arbol P, Matorras F, Rodrigo T, Ruiz Jimeno A, Scodellaro L, Sobron Sanudo M, Vila I, Vilar Cortabitarte R, Abbaneo D, Auffray E, Baillon P, Ball AH, Barney D, Beaudette F, Bell AJ, Bellan R, Benedetti D, Bernet C, Bialas W, Bloch P, Bocci A, Bolognesi S, Breuker H, Brona G, Bunkowski K, Camporesi T, Cano E, Cattai A, Cerminara G, Christiansen T, Coarasa Perez JA, Covarelli R, Curé B, Dahms T, De Roeck A, Elliott-Peisert A, Funk W, Gaddi A, Gennai S, Gerwig H, Gigi D, Gill K, Giordano D, Glege F, Gomez-Reino Garrido R, Gowdy S, Guiducci L, Hansen M, Hartl C, Harvey J, Hegner B, Henderson C, Hoffmann HF, Honma A, Innocente V, Janot P, Lecoq P, Leonidopoulos C, Lourenço C, Macpherson A, Mäki T, Malgeri L, Mannelli M, Masetti L, Mavromanolakis G, Meijers F, Mersi S, Meschi E, Moser R, Mozer MU, Mulders M, Nesvold E, Orsini L, Perez E, Petrilli A, Pfeiffer A, Pierini M, Pimiä M, Racz A, Rolandi G, Rovelli C, Rovere M, Ryjov V, Sakulin H, Schäfer C, Schwick C, Segoni I, Sharma A, Siegrist P, Simon M, Sphicas P, Spiga D, Spiropulu M, Stöckli F, Traczyk P, Tropea P, Tsirou A, Veres GI, Vichoudis P, Voutilainen M, Zeuner WD, Bertl W, Deiters K, Erdmann W, Gabathuler K, Horisberger R, Ingram Q, Kaestli HC, König S, Kotlinski D, Langenegger U, Meier F, Renker D, Rohe T, Sibille J, Starodumov A, Caminada L, Chen Z, Cittolin S, Dissertori G, Dittmar M, Eugster J, Freudenreich K, Grab C, Hervé A, Hintz W, Lecomte P, Lustermann W, Marchica C, Meridiani P, Milenovic P, Moortgat F, Nardulli A, Nessi-Tedaldi F, Pape L, Pauss F, Punz T, Rizzi A, Ronga FJ, Sala L, Sanchez AK, Sawley MC, Schinzel D, Sordini V, Stieger B, Tauscher L, Thea A, Theofilatos K, Treille D, Weber M, Wehrli L, Weng J, Amsler C, Chiochia V, De Visscher S, Ivova Rikova M, Millan Mejias B, Regenfus C, Robmann P, Rommerskirchen T, Schmidt A, Tsirigkas D, Wilke L, Chang YH, Chen KH, Chen WT, Go A, Kuo CM, Li SW, Lin W, Liu MH, Lu YJ, Wu JH, Yu SS, Bartalini P, Chang P, Chang YH, Chang YW, Chao Y, Chen KF, Hou WS, Hsiung Y, Kao KY, Lei YJ, Lin SW, Lu RS, Shiu JG, Tzeng YM, Ueno K, Wang CC, Wang M, Wei JT, Adiguzel A, Ayhan A, Bakirci MN, Cerci S, Demir Z, Dozen C, Dumanoglu I, Eskut E, Girgis S, Gökbulut G, Güler Y, Gurpinar E, Hos I, Kangal EE, Karaman T, Kayis Topaksu A, Nart A, Onengüt G, Ozdemir K, Ozturk S, Polatöz A, Sahin O, Sengul O, Sogut K, Tali B, Topakli H, Uzun D, Vergili LN, Vergili M, Zorbilmez C, Akin IV, Aliev T, Bilmis S, Deniz M, Gamsizkan H, Guler AM, Ocalan K, Ozpineci A, Serin M, Sever R, Surat UE, Zeyrek M, Deliomeroglu M, Demir D, Gülmez E, Halu A, Isildak B, Kaya M, Kaya O, Ozbek M, Ozkorucuklu S, Sonmez N, Levchuk L, Bell P, Bostock F, Brooke JJ, Cheng TL, Cussans D, Frazier R, Goldstein J, Hansen M, Heath GP, Heath HF, Hill C, Huckvale B, Jackson J, Kreczko L, Mackay CK, Metson S, Newbold DM, Nirunpong K, Smith VJ, Ward S, Basso L, Bell KW, Belyaev A, Brew C, Brown RM, Camanzi B, Cockerill DJA, Coughlan JA, Harder K, Harper S, Kennedy BW, Olaiya E, Radburn-Smith BC, Shepherd-Themistocleous CH, Tomalin IR, Womersley WJ, Worm SD, Bainbridge R, Ball G, Ballin J, Beuselinck R, Buchmuller O, Colling D, Cripps N, Cutajar M, Davies G, Della Negra M, Foudas C, Fulcher J, Futyan D, Guneratne Bryer A, Hall G, Hatherell Z, Hays J, Iles G, Karapostoli G, Lyons L, Magnan AM, Marrouche J, Nandi R, Nash J, Nikitenko A, Papageorgiou A, Pesaresi M, Petridis K, Pioppi M, Raymond DM, Rompotis N, Rose A, Ryan MJ, Seez C, Sharp P, Sparrow A, Stoye M, Tapper A, Tourneur S, Vazquez Acosta M, Virdee T, Wakefield S, Wardrope D, Whyntie T, Barrett M, Chadwick M, Cole JE, Hobson PR, Khan A, Kyberd P, Leslie D, Reid ID, Teodorescu L, Bose T, Clough A, Heister A, St John J, Lawson P, Lazic D, Rohlf J, Sulak L, Andrea J, Avetisyan A, Bhattacharya S, Chou JP, Cutts D, Esen S, Heintz U, Jabeen S, Kukartsev G, Landsberg G, Narain M, Nguyen D, Speer T, Tsang KV, Borgia MA, Breedon R, Calderon De La Barca Sanchez M, Cebra D, Chertok M, Conway J, Cox PT, Dolen J, Erbacher R, Friis E, Ko W, Kopecky A, Lander R, Liu H, Maruyama S, Miceli T, Nikolic M, Pellett D, Robles J, Schwarz T, Searle M, Smith J, Squires M, Tripathi M, Vasquez Sierra R, Veelken C, Andreev V, Arisaka K, Cline D, Cousins R, Deisher A, Erhan S, Farrell C, Felcini M, Hauser J, Ignatenko M, Jarvis C, Plager C, Rakness G, Schlein P, Tucker J, Valuev V, Wallny R, Babb J, Clare R, Ellison J, Gary JW, Hanson G, Jeng GY, Kao SC, Liu F, Liu H, Luthra A, Nguyen H, Pasztor G, Satpathy A, Shen BC, Stringer R, Sturdy J, Sumowidagdo S, Wilken R, Wimpenny S, Andrews W, Branson JG, Dusinberre E, Evans D, Golf F, Holzner A, Kelley R, Lebourgeois M, Letts J, Mangano B, Muelmenstaedt J, Padhi S, Palmer C, Petrucciani G, Pi H, Pieri M, Ranieri R, Sani M, Sharma V, Simon S, Tu Y, Vartak A, Würthwein F, Yagil A, Barge D, Blume M, Campagnari C, D'Alfonso M, Danielson T, Garberson J, Incandela J, Justus C, Kalavase P, Koay SA, Kovalskyi D, Krutelyov V, Lamb J, Lowette S, Pavlunin V, Rebassoo F, Ribnik J, Richman J, Rossin R, Stuart D, To W, Vlimant JR, Witherell M, Bornheim A, Bunn J, Gataullin M, Kcira D, Litvine V, Ma Y, Newman HB, Rogan C, Shin K, Timciuc V, Veverka J, Wilkinson R, Yang Y, Zhu RY, Akgun B, Carroll R, Ferguson T, Jang DW, Jun SY, Paulini M, Russ J, Terentyev N, Vogel H, Vorobiev I, Cumalat JP, Dinardo ME, Drell BR, Ford WT, Heyburn B, Luiggi Lopez E, Nauenberg U, Smith JG, Stenson K, Ulmer KA, Wagner SR, Zang SL, Agostino L, Alexander J, Blekman F, Chatterjee A, Das S, Eggert N, Fields LJ, Gibbons LK, Heltsley B, Hopkins W, Khukhunaishvili A, Kreis B, Kuznetsov V, Kaufman GN, Patterson JR, Puigh D, Riley D, Ryd A, Shi X, Sun W, Teo WD, Thom J, Thompson J, Vaughan J, Weng Y, Wittich P, Biselli A, Cirino G, Winn D, Abdullin S, Albrow M, Anderson J, Apollinari G, Atac M, Bakken JA, Banerjee S, Bauerdick LAT, Beretvas A, Berryhill J, Bhat PC, Bloch I, Borcherding F, Burkett K, Butler JN, Chetluru V, Cheung HWK, Chlebana F, Cihangir S, Demarteau M, Eartly DP, Elvira VD, Fisk I, Freeman J, Gao Y, Gottschalk E, Green D, Gutsche O, Hahn A, Hanlon J, Harris RM, James E, Jensen H, Johnson M, Joshi U, Khatiwada R, Kilminster B, Klima B, Kousouris K, Kunori S, Kwan S, Limon P, Lipton R, Lykken J, Maeshima K, Marraffino JM, Mason D, McBride P, McCauley T, Miao T, Mishra K, Mrenna S, Musienko Y, Newman-Holmes C, O'Dell V, Popescu S, Pordes R, Prokofyev O, Saoulidou N, Sexton-Kennedy E, Sharma S, Smith RP, Soha A, Spalding WJ, Spiegel L, Tan P, Taylor L, Tkaczyk S, Uplegger L, Vaandering EW, Vidal R, Whitmore J, Wu W, Yumiceva F, Yun JC, Acosta D, Avery P, Bourilkov D, Chen M, Di Giovanni GP, Dobur D, Drozdetskiy A, Field RD, Fu Y, Furic IK, Gartner J, Kim B, Klimenko S, Konigsberg J, Korytov A, Kotov K, Kropivnitskaya A, Kypreos T, Matchev K, Mitselmakher G, Pakhotin Y, Piedra Gomez J, Prescott C, Remington R, Schmitt M, Scurlock B, Sellers P, Wang D, Yelton J, Zakaria M, Ceron C, Gaultney V, Kramer L, Lebolo LM, Linn S, Markowitz P, Martinez G, Mesa D, Rodriguez JL, Adams T, Askew A, Chen J, Diamond B, Gleyzer SV, Haas J, Hagopian S, Hagopian V, Jenkins M, Johnson KF, Prosper H, Sekmen S, Veeraraghavan V, Baarmand MM, Guragain S, Hohlmann M, Kalakhety H, Mermerkaya H, Ralich R, Vodopiyanov I, Adams MR, Anghel IM, Apanasevich L, Bazterra VE, Betts RR, Callner J, Cavanaugh R, Dragoiu C, Garcia-Solis EJ, Gerber CE, Hofman DJ, Khalatian S, Lacroix F, Shabalina E, Smoron A, Strom D, Varelas N, Akgun U, Albayrak EA, Bilki B, Cankocak K, Clarida W, Duru F, Lae CK, McCliment E, Merlo JP, Mestvirishvili A, Moeller A, Nachtman J, Newsom CR, Norbeck E, Olson J, Onel Y, Ozok F, Sen S, Wetzel J, Yetkin T, Yi K, Barnett BA, Blumenfeld B, Bonato A, Eskew C, Fehling D, Giurgiu G, Gritsan AV, Guo ZJ, Hu G, Maksimovic P, Rappoccio S, Swartz M, Tran NV, Whitbeck A, Baringer P, Bean A, Benelli G, Grachov O, Murray M, Radicci V, Sanders S, Wood JS, Zhukova V, Bandurin D, Bolton T, Chakaberia I, Ivanov A, Kaadze K, Maravin Y, Shrestha S, Svintradze I, Wan Z, Gronberg J, Lange D, Wright D, Baden D, Boutemeur M, Eno SC, Ferencek D, Hadley NJ, Kellogg RG, Kirn M, Mignerey A, Rossato K, Rumerio P, Santanastasio F, Skuja A, Temple J, Tonjes MB, Tonwar SC, Twedt E, Alver B, Bauer G, Bendavid J, Busza W, Butz E, Cali IA, Chan M, D'Enterria D, Everaerts P, Gomez Ceballos G, Goncharov M, Hahn KA, Harris P, Kim Y, Klute M, Lee YJ, Li W, Loizides C, Luckey PD, Ma T, Nahn S, Paus C, Roland C, Roland G, Rudolph M, Stephans GSF, Sumorok K, Sung K, Wenger EA, Wyslouch B, Xie S, Yilmaz Y, Yoon AS, Zanetti M, Cole P, Cooper SI, Cushman P, Dahmes B, De Benedetti A, Dudero PR, Franzoni G, Haupt J, Klapoetke K, Kubota Y, Mans J, Petyt D, Rekovic V, Rusack R, Sasseville M, Singovsky A, Cremaldi LM, Godang R, Kroeger R, Perera L, Rahmat R, Sanders DA, Sonnek P, Summers D, Bloom K, Bose S, Butt J, Claes DR, Dominguez A, Eads M, Keller J, Kelly T, Kravchenko I, Lazo-Flores J, Lundstedt C, Malbouisson H, Malik S, Snow GR, Baur U, Iashvili I, Kharchilava A, Kumar A, Smith K, Strang M, Zennamo J, Alverson G, Barberis E, Baumgartel D, Boeriu O, Reucroft S, Swain J, Wood D, Zhang J, Anastassov A, Kubik A, Ofierzynski RA, Pozdnyakov A, Schmitt M, Stoynev S, Velasco M, Won S, Antonelli L, Berry D, Hildreth M, Jessop C, Karmgard DJ, Kolb J, Kolberg T, Lannon K, Lynch S, Marinelli N, Morse DM, Ruchti R, Slaunwhite J, Valls N, Warchol J, Wayne M, Ziegler J, Bylsma B, Durkin LS, Gu J, Killewald P, Ling TY, Williams G, Adam N, Berry E, Elmer P, Gerbaudo D, Halyo V, Hunt A, Jones J, Laird E, Lopes Pegna D, Marlow D, Medvedeva T, Mooney M, Olsen J, Piroué P, Stickland D, Tully C, Werner JS, Zuranski A, Acosta JG, Huang XT, Lopez A, Mendez H, Oliveros S, Ramirez Vargas JE, Zatzerklyaniy A, Alagoz E, Barnes VE, Bolla G, Borrello L, Bortoletto D, Everett A, Garfinkel AF, Gecse Z, Gutay L, Jones M, Koybasi O, Laasanen AT, Leonardo N, Liu C, Maroussov V, Merkel P, Miller DH, Neumeister N, Potamianos K, Shipsey I, Silvers D, Yoo HD, Zablocki J, Zheng Y, Jindal P, Parashar N, Cuplov V, Ecklund KM, Geurts FJM, Liu JH, Morales J, Padley BP, Redjimi R, Roberts J, Betchart B, Bodek A, Chung YS, de Barbaro P, Demina R, Flacher H, Garcia-Bellido A, Gotra Y, Han J, Harel A, Miner DC, Orbaker D, Petrillo G, Vishnevskiy D, Zielinski M, Bhatti A, Demortier L, Goulianos K, Hatakeyama K, Lungu G, Mesropian C, Yan M, Atramentov O, Gershtein Y, Gray R, Halkiadakis E, Hidas D, Hits D, Lath A, Rose K, Schnetzer S, Somalwar S, Stone R, Thomas S, Cerizza G, Hollingsworth M, Spanier S, Yang ZC, York A, Asaadi J, Eusebi R, Gilmore J, Gurrola A, Kamon T, Khotilovich V, Montalvo R, Nguyen CN, Pivarski J, Safonov A, Sengupta S, Toback D, Weinberger M, Akchurin N, Bardak C, Damgov J, Jeong C, Kovitanggoon K, Lee SW, Mane P, Roh Y, Sill A, Volobouev I, Wigmans R, Yazgan E, Appelt E, Brownson E, Engh D, Florez C, Gabella W, Johns W, Kurt P, Maguire C, Melo A, Sheldon P, Velkovska J, Arenton MW, Balazs M, Buehler M, Conetti S, Cox B, Hirosky R, Ledovskoy A, Neu C, Yohay R, Gollapinni S, Gunthoti K, Harr R, Karchin PE, Mattson M, Milstène C, Sakharov A, Anderson M, Bachtis M, Bellinger JN, Carlsmith D, Dasu S, Dutta S, Efron J, Gray L, Grogg KS, Grothe M, Hall-Wilton R, Herndon M, Klabbers P, Klukas J, Lanaro A, Lazaridis C, Leonard J, Lomidze D, Loveless R, Mohapatra A, Polese G, Reeder D, Savin A, Smith WH, Swanson J, Weinberg M. Transverse-momentum and pseudorapidity distributions of charged hadrons in pp collisions at square root of s = 7 TeV. PHYSICAL REVIEW LETTERS 2010; 105:022002. [PMID: 20867699 DOI: 10.1103/physrevlett.105.022002] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Indexed: 05/29/2023]
Abstract
Charged-hadron transverse-momentum and pseudorapidity distributions in proton-proton collisions at square root of s = 7 TeV are measured with the inner tracking system of the CMS detector at the LHC. The charged-hadron yield is obtained by counting the number of reconstructed hits, hit pairs, and fully reconstructed charged-particle tracks. The combination of the three methods gives a charged-particle multiplicity per unit of pseudorapidity dN(ch)/dη|(|η|<0.5) = 5.78 ± 0.01(stat) ± 0.23(syst) for non-single-diffractive events, higher than predicted by commonly used models. The relative increase in charged-particle multiplicity from square root of s = 0.9 to 7 TeV is [66.1 ± 1.0(stat) ± 4.2(syst)]%. The mean transverse momentum is measured to be 0.545 ± 0.005(stat) ± 0.015(syst) GeV/c. The results are compared with similar measurements at lower energies.
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Lamb J, Hentz K, Schmitt D, Tran N, Jonker D, Junker K. A one-year oral toxicity study of sodium stearoyl lactylate (SSL) in rats. Food Chem Toxicol 2010; 48:2663-9. [PMID: 20600527 DOI: 10.1016/j.fct.2010.06.037] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 06/04/2010] [Accepted: 06/24/2010] [Indexed: 10/19/2022]
Abstract
The toxicity of sodium stearoyl lactylate (SSL) was examined in Wistar rats fed diets containing 0, 1.25, 2.5, and 5% SSL for one year, equivalent to mean daily intakes of 558, 1115, and 2214 mg/kg/day in males and 670, 1339, and 2641 mg/kg/day in females, respectively. SSL was well tolerated at these dietary levels as evidenced by the absence of toxicologically significant changes in the general condition and appearance of the rats, survival, neurobehavioral endpoints, growth, feed and water intake, ophthalmoscopic examinations, hematology and clinical chemistry parameters, urinalysis, or necropsy findings. The occurrence of uterine endometrial stromal polyps was the only finding of potential significance. Given the frequent occurrence of these benign tumors in rats, wide variability in the reported incidence of this type of polyps in rats, the lack of statistical significance and lack of biological evidence to suggest a mechanism for the slightly greater incidence in the groups fed 2.5 and 5% SSL, it was concluded that the endometrial stromal polyps observed in females fed SSL were not related to treatment. The no observed adverse effect level (NOAEL) of SSL was placed at 5%, the highest dietary level tested (equivalent to 2214 mg/kg/day for males and 2641 mg/kg/day for females).
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Li R, Lewis J, Jia X, Zhao T, Lamb J, Yang D, Low D, Jiang S. SU-GG-J-93: PCA-Based Lung Motion Model. Med Phys 2010. [DOI: 10.1118/1.3468317] [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
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Diergaarde B, Brand R, Lamb J, Cheong SY, Stello K, Barmada MM, Feingold E, Whitcomb DC. Pooling-based genome-wide association study implicates gamma-glutamyltransferase 1 (GGT1) gene in pancreatic carcinogenesis. Pancreatology 2010; 10:194-200. [PMID: 20484958 PMCID: PMC2899150 DOI: 10.1159/000236023] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2009] [Accepted: 08/05/2009] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIMS Knowledge regarding genetic factors that influence pancreatic cancer risk is currently limited. To identify novel pancreatic cancer susceptibility loci, we conducted a two-stage genome-wide association study. METHODS The Affymetrix Genome-Wide Human SNP Array 6.0 and DNA pooling were used in the screening stage. Twenty-six single-nucleotide polymorphisms (SNPs) were selected for follow-up. These 26 lead SNPs and additionally selected tagSNPs for the regions around the lead SNPs were evaluated by individual genotyping of the pooling population and an independent validation population. RESULTS Of the lead SNPs, the strongest association was found with rs4820599 located in the gamma-glutamyltransferase 1 (GGT1) gene. This SNP was significantly associated with pancreatic cancer risk in the validation population and the combined dataset (p(allele-based) = 0.019 and p(allele-based) = 0.003, respectively). Statistically significant associations were also observed with two GGT1 tagSNPs: rs2017869 and rs8135987. Lead SNP rs4820599 is in high linkage disequilibrium (LD; pairwise r(2): 0.69) and tagSNP rs2017869 is in strong LD (pairwise r(2): 0.96) with SNP rs5751901, which has been reported to be associated with increased GGT1 serum levels. GGT is expressed in the pancreas and plays a key role in glutathione metabolism. CONCLUSION Our results suggest that common variation in the GGT1 gene may affect the risk of pancreatic cancer. .
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White B, Wuenschel S, Zhao T, Lamb J, Low D. SU-GG-J-90: Quantification of the Thorax-To-Abdomen Breathing Ratio for Breathing Motion Modeling. Med Phys 2010. [DOI: 10.1118/1.3468314] [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
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White B, Wuenschel S, Zhao T, Lamb J, El Naqa I, Low D. WE-D-204B-04: Distribution of Lung Tissue Motion during Free Breathing. Med Phys 2010. [DOI: 10.1118/1.3469401] [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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Smith LM, Sharif S, Brand R, Fink E, Lamb J, Whitcomb DC. MUTYH exon 7 and 13 mutations associated with colorectal cancer (MAP syndrome) are not commonly associated with sporadic pancreatic cancer. Pancreatology 2010; 9:793-6. [PMID: 20110747 DOI: 10.1159/000199440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2008] [Accepted: 01/23/2009] [Indexed: 12/11/2022]
Abstract
BACKGROUND Biallelic MUTYH exon 7 and 13 mutations are associated with a high frequency of somatic K-ras gene guanine to thymine transversion mutations at codon 12 position 1 in MUTYH-associated polyposis patients who have increased risk of colon cancer. The purpose of this study was to determine if a similar association exists between exon 7 and 13 MUTYH mutations and pancreatic cancer. METHODS Genomic DNA samples from 140 patients with pancreatic cancer and 107 controls were sequenced and analyzed for mutations in each of MUTYH exons 7 and 13. RESULTS Two patients with pancreatic cancer were identified as heterozygous for a MUTYH Y165C germline mutation. One pancreatic cancer patient was heterozygous for a G382D mutation and an additional patient was heterozygous for a novel missense mutation, L406M. No biallelic mutations were identified in pancreatic cancer or control subjects. CONCLUSION Despite their association with somatic K-ras mutations and an increased risk of colorectal cancer in MUTYH-associated polyposis patients, MUTYH exon 7 and 13 mutations were not associated with pancreatic cancer in our cohort.
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Oruc N, Papachristou GI, Avula H, Slivka A, Lamb J, Whitcomb DC. Angiotensin-converting enzyme gene DD genotype neither increases susceptibility to acute pancreatitis nor influences disease severity. HPB (Oxford) 2009; 11:45-9. [PMID: 19590623 PMCID: PMC2697858 DOI: 10.1111/j.1477-2574.2008.00005.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Accepted: 08/30/2008] [Indexed: 12/12/2022]
Abstract
BACKGROUND The renin-angiotensin system (RAS) has been implied in the pathogenesis of various diseases including acute and chronic pancreatitis. Angiotensin-converting enzyme (ACE) is the key enzyme in activating the RAS. Deletion (D)-type polymorphism in the 16th intron of the ACE gene has been associated with higher serum levels of the enzyme. Inhibition of ACE was found to ameliorate acute pancreatitis in animal models suggesting that ACE plays a role in pathogenesis and progression of acute pancreatitis. Objectives were to investigate the occurrence of the ACE insertion/deletion (I/D) polymorphism in acute pancreatitis patients and its association with the severity of the disease. MATERIAL AND METHODS Seventy-nine acute pancreatitis patients and 95 healthy controls were evaluated. Acute pancreatitis cases were grouped as mild or severe according to the Atlanta criteria. MAIN OUTCOME MEASURE The presence of the ACE I/D polymorphism. RESULTS ACE gene I and D allele frequency of patients (44% and 56%) were similar to controls (45% and 55%, respectively). There were no significant differences in severity of pancreatitis between patients with the ACE-insertion or ACE-insertion/deletion versus ACE-deletion genotypes. CONCLUSIONS The ACE gene deletion polymorphism is neither a risk factor for development of acute pancreatitis nor contributes to the severity of disease or development of complications.
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Oruç N, Lamb J, Whitcomb DJ, Sass DA. The ACE gene I/D polymorphism does not affect the susceptibility to or prognosis of PBC. THE TURKISH JOURNAL OF GASTROENTEROLOGY : THE OFFICIAL JOURNAL OF TURKISH SOCIETY OF GASTROENTEROLOGY 2008; 19:250-253. [PMID: 19119484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
BACKGROUND/AIMS Primary biliary cirrhosis is an autoimmune liver disease that is strongly influenced by poorly defined, complex genetic factors. Alterations of the renin-angiotensin system have been implicated in the pathogenesis of various diseases. A deletion polymorphism of a 287-bp fragment of intron 16 of the angiotensin converting enzyme gene allele results in higher levels of circulating enzyme. Angiotensin converting enzyme deletion genotype has been linked to hypertension and sarcoidosis and has been reported to regulate liver fibrosis in HCV-mediated liver disease. We investigated the frequency of the Angiotensin converting enzyme gene insertion/deletion polymorphism in primary biliary cirrhosis patients. METHODS 52 biopsy-proven primary biliary cirrhosis patients and 98 healthy controls were evaluated. Angiotensin converting enzyme insertion/deletion polymorphism was detected by polymerase chain reaction amplification of a genomic DNA fragment on intron 16 of the angiotensin converting enzyme gene. Clinical phenotype of primary biliary cirrhosis was verified with positive anti-mitochondrial antibody or M2 antibody, demonstration of cholestatic liver enzymes, and staging of liver biopsy. The differences between these variables among different genotypes were noted. RESULTS There was no significant difference in genotypes and allele frequency between the primary biliary cirrhosis group and controls. The D allele frequency was 54% in primary biliary cirrhosis cases and 55% in controls (p=ns). Furthermore, there was no significant difference in clinical features between patients with angiotensin converting enzyme-insertion or insertion/deletion genotypes vs. patients with angiotensin converting enzyme-deletion genotype. CONCLUSIONS In our limited sample, the angiotensin converting enzyme deletion genotype did not make a significant contribution to the pathogenesis or progression of primary biliary cirrhosis.
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Lazarev M, Lamb J, Barmada MM, Dai F, Anderson MA, Max MB, Whitcomb DC. Does the pain-protective GTP cyclohydrolase haplotype significantly alter the pattern or severity of pain in humans with chronic pancreatitis? Mol Pain 2008; 4:58. [PMID: 19014702 PMCID: PMC2626574 DOI: 10.1186/1744-8069-4-58] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2008] [Accepted: 11/17/2008] [Indexed: 01/09/2023] Open
Abstract
Background Pain is often a dominant clinical feature of chronic pancreatitis but the frequency and severity is highly variable between subjects. We hypothesized that genetic polymorphisms contribute to variations in clinical pain patterns. Since genetic variations in the GTP cyclohydrolase (GCH1) gene have been reported to protect some patients from pain, we investigated the effect of the "pain protective haplotype" in well characterized patients with chronic pancreatitis (CP) or recurrent acute pancreatitis (RAP) from the North American Pancreatitis Study 2 (NAPS2). Results Subjects in the NAPS2 study were asked to rank their pain in one of 5 categories reflecting different levels of pain frequency and severity. All subjects were genotyped at rs8007267 and rs3783641 to determine the frequency of the GCH1 pain-protective haplotype. In Caucasian subjects the frequency of the pain-protective GCH1 haplotype was no different in the control group (n = 236), CP patients (n = 265), RAP patients (N = 131), or in CP patients subclassified by pain category compared to previously reported haplotype frequencies in the general Caucasian population. Conclusion The GCH1 pain-protective haplotype does not have a significant effect on pain patterns or severity in RAP or CP. These results are important for helping to define the regulators of visceral pain, and to distinguish different mechanisms of pain.
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Crisp RJ, Cowan AJ, Lamb J, Thompson O, Tulloch N, Burke FJT. A clinical evaluation of all-ceramic bridges placed in UK general dental practices: first-year results. Br Dent J 2008; 205:477-82. [DOI: 10.1038/sj.bdj.2008.937] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/29/2008] [Indexed: 11/09/2022]
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Whitcomb DC, Yadav D, Adam S, Hawes RH, Brand RE, Anderson MA, Money ME, Banks PA, Bishop MD, Baillie J, Sherman S, DiSario J, Burton FR, Gardner TB, Amann ST, Gelrud A, Lo SK, DeMeo MT, Steinberg WM, Kochman ML, Etemad B, Forsmark CE, Elinoff B, Greer JB, O’Connell M, Lamb J, Barmada MM. Multicenter approach to recurrent acute and chronic pancreatitis in the United States: the North American Pancreatitis Study 2 (NAPS2). Pancreatology 2008; 8:520-31. [PMID: 18765957 PMCID: PMC2790781 DOI: 10.1159/000152001] [Citation(s) in RCA: 158] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2007] [Accepted: 02/21/2008] [Indexed: 12/11/2022]
Abstract
BACKGROUND Recurrent acute pancreatitis (RAP) and chronic pancreatitis (CP) are complex syndromes associated with numerous etiologies, clinical variables and complications. We developed the North American Pancreatitis Study 2 (NAPS2) to be sufficiently powered to understand the complex environmental, metabolic and genetic mechanisms underlying RAP and CP. METHODS Between August 2000 and September 2006, a consortium of 20 expert academic and private sites prospectively ascertained 1,000 human subjects with RAP or CP, plus 695 controls (spouse, family, friend or unrelated). Standardized questionnaires were completed by both the physicians and study subjects and blood was drawn for genomic DNA and biomarker studies. All data were double-entered into a database and systematically reviewed to minimize errors and include missing data. RESULTS A total of 1,000 subjects (460 RAP, 540 CP) and 695 controls who completed consent forms and questionnaires and donated blood samples comprised the final dataset. Data were organized according to diagnosis, supporting documentation, etiological classification, clinical signs and symptoms (including pain patterns and duration, and quality of life), past medical history, family history, environmental exposures (including alcohol and tobacco use), medication use and therapeutic interventions. Upon achieving the target enrollment, data were organized and classified to facilitate future analysis. The approaches, rationale and datasets are described, along with final demographic results. CONCLUSION The NAPS2 consortium has successfully completed a prospective ascertainment of 1,000 subjects with RAP and CP from the USA. These data will be useful in elucidating the environmental, metabolic and genetic conditions, and to investigate the complex interactions that underlie RAP and CP.
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Pasch L, Lamb J, Shelly W, Sandler J, Lee Z, Cedars M. Factors associated with risk for depression among women with polycystic ovarian syndrome. Fertil Steril 2008. [DOI: 10.1016/j.fertnstert.2008.07.833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Muddana V, Lamb J, Greer JB, Elinoff B, Hawes RH, Cotton PB, Anderson MA, Brand RE, Slivka A, Whitcomb DC. Association between calcium sensing receptor gene polymorphisms and chronic pancreatitis in a US population: Role of serine protease inhibitor Kazal 1type and alcohol. World J Gastroenterol 2008; 14:4486-91. [PMID: 18680227 PMCID: PMC2731274 DOI: 10.3748/wjg.14.4486] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To test the hypothesis that calcium sensing receptor (CASR) polymorphisms are associated with chronic pancreatitis (CP), and to determine whether serine protease inhibitor Kazal 1type (SPINK1) N34S or alcohol are necessary co-factors in its etiology.
METHODS: Initially, 115 subjects with pancreatitis and 66 controls were evaluated, of whom 57 patients and 21 controls were predetermined to carry the high-risk SPINK1 N34S polymorphism. We sequenced CASR gene exons 2, 3, 4, 5 and 7, areas containing the majority of reported polymorphisms and novel mutations. Based on the initial results, we added 223 patients and 239 controls to analyze three common nonsynonymous single nucleotide polymorphisms (SNPs) in exon 7 (A986S, R990G, and Q1011E).
RESULTS: The CASR exon 7 R990G polymorphism was significantly associated with CP (OR, 2.01; 95% CI, 1.12-3.59; P = 0.015). The association between CASR R990G and CP was stronger in subjects who reported moderate or heavy alcohol consumption (OR, 3.12; 95% CI, 1.14-9.13; P = 0.018). There was no association between the various CASR genotypes and SPINK1 N34S in pancreatitis. None of the novel CASR polymorphisms reported from Germany and India was detected.
CONCLUSION: Our United States-based study confirmed an association of CASR and CP and for the first time demonstrated that CASR R990G is a significant risk factor for CP. We also conclude that the risk of CP with CASR R990G is increased in subjects with moderate to heavy alcohol consumption.
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Knox-Macaulay HH, Fleming AF, Lamb J, Mba EC. Haemoglobin GPhiladelphia and its interaction with haemoglobin S and alpha-thalassaemia in Nigerians. CLINICAL AND LABORATORY HAEMATOLOGY 2008; 6:113-21. [PMID: 6488738 DOI: 10.1111/j.1365-2257.1984.tb00533.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The diagnosis of Hb SS/GPhiladelphia disease was made in four young Nigerians from separate families. Their Hb electrophoretic patterns on cellulose acetate membrane at alkaline pH were similar to those obtained in sickle-cell haemoglobin C (HbSC) disease, but their clinical features and haematological data were consistent with the diagnosis of homozygous sickle-cell disease. Family studies also revealed that they had inherited an additional alpha-chain mutant haemoglobin. In one of the families, fingerprints of the globin peptides and amino acid analysis confirmed that the mutant haemoglobin was Hb GPhiladelphia (alpha 2 68 Asn----Lys beta 2 A). The results of the whole blood solubility test for sickle-haemoglobin provided firm support for the diagnosis of homozygous sickle-cell disease and distinguished clearly Hb SS/GPhiladelphia disease from Hb SC disease and Hb AS from Hb AGPhiladelphia heterozygotes. Restriction endonuclease mapping of the globin genes of the propositus and some relatives of one of the families revealed also that they were carriers of the alpha-thalassaemia-2 gene (deletion-type). The globin gene-analysis data indicate also that the alpha GPhiladelphia and alpha-thalassaemia genes are linked closely in Nigerians.
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Raina A, Krasinskas AM, Greer JB, Lamb J, Fink E, Moser AJ, Zeh III HJ, Slivka A, Whitcomb DC. Serum Immunoglobulin G Fraction 4 Levels in Pancreatic Cancer: Elevations Not Associated With Autoimmune Pancreatitis. Arch Pathol Lab Med 2008; 132:48-53. [DOI: 10.5858/2008-132-48-sigfli] [Citation(s) in RCA: 84] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/10/2007] [Indexed: 01/04/2023]
Abstract
Abstract
Context.—Autoimmune pancreatitis is an uncommon, inflammatory disease of the pancreas that presents with clinical features, such as painless jaundice and a pancreatic mass, similar to those caused by pancreatic cancer. Patients with autoimmune pancreatitis frequently have elevated serum immunoglobulin G fraction 4 (IgG4) levels, and their pancreatic tissue may show IgG4-positive plasma cell infiltration. It is imperative to differentiate autoimmune pancreatitis from pancreatic cancer because autoimmune pancreatitis typically responds to corticosteroid treatment. A previous Japanese study reported that serum IgG4 greater than 135 mg/dL was 97% specific and 95% sensitive in predicting autoimmune pancreatitis.
Objective.—To prospectively measure serum IgG4 levels in pancreatic cancer patients to ascertain whether increased levels might be present in this North American population.
Design.—We collected blood samples and phenotypic information on 71 consecutive pancreatic cancer patients and 103 healthy controls who visited our clinics between October 2004 and April 2006. IgG4 levels were determined using a single radial immunodiffusion assay. A serum IgG4 level greater than 135 mg/dL was considered elevated.
Results.—Five cancer patients had IgG4 elevation, with a mean serum IgG4 level of 160.8 mg/dL. None of our cancer patients with plasma IgG4 elevation demonstrated evidence of autoimmune pancreatitis. One control subject demonstrated elevated serum IgG4 unrelated to identified etiology.
Conclusions.—As many as 7% of patients with pancreatic cancer have serum IgG4 levels above 135 mg/dL. In patients with pancreatic mass lesions and suspicion of cancer, an IgG4 level measuring between 135 and 200 mg/dL should be interpreted cautiously and not accepted as diagnostic of autoimmune pancreatitis without further evaluation.
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Papachristou GI, Malehorn DE, Lamb J, Slivka A, Bigbee WL, Whitcomb DC. Serum proteomic patterns as a predictor of severity in acute pancreatitis. Pancreatology 2007; 7:317-24. [PMID: 17627096 DOI: 10.1159/000105497] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Accepted: 12/20/2006] [Indexed: 12/11/2022]
Abstract
BACKGROUND Approximately 20% of patients with acute pancreatitis (AP) develop a severe and potentially life-threatening course. Serum proteomic pattern analysis for disease diagnosis is a promising novel and rapidly expanding field based on the hypothesis that serum patterns of low molecular mass biomarkers can specifically reflect an underlying organ-specific pathologic state. AIM To evaluate the potential differences in proteomic profiles between patients with mild and severe AP. METHODS Sera from 21 patients with mild AP and 7 patients with severe AP were analyzed using surface-enhanced laser desorption/ionization time-of-flight mass spectrometry (SELDI-TOF MS). Samples were profiled in duplicate on IMAC3 ProteinChips arrays. RESULTS Of 79 spectral peak clusters (classifiers) detected, 18 had significantly different signal intensities between mild AP (MAP) and severe AP (SAP) sera (p < 0.01; Mann-Whitney U test, averaging for technical replicates) and were considered as potential classifiers in classification and regression tree (CART) analysis. The CART analysis returned simple classification trees consisting of one primary splitter, at 11,720 Da. Training data performance delivered nearly 100% sensitivity and 81% specificity for discrimination of SAP. The next top performing classifier was indicated at 4,283 Da m/z peak. CONCLUSIONS These initial data suggest that serum proteomic profiles contain features that discriminate MAP and SAP. Larger sample sizes will be required for the development and validation of more specific predictive algorithms.
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Bhat YM, Papachristou GI, Park JS, Lamb J, Slivka A, Whitcomb DC. Functional polymorphisms of the GSTT-1 gene do not predict the severity of acute pancreatitis in the United States. Pancreatology 2007; 7:180-6. [PMID: 17592232 DOI: 10.1159/000104243] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2006] [Accepted: 10/25/2006] [Indexed: 12/11/2022]
Abstract
BACKGROUND/AIM Acute pancreatitis (AP) is an inflammatory response to pancreatic injury that is clinically classified as mild AP or severe AP, depending on specific criteria. Rahman and colleagues [Gastroenterology 2004;126:1312-1322] reported that genetic variation in the glutathione S-transferase theta-1 gene (GSTT-1) is associated with susceptibility and severity of AP in England. Our aim was to determine whether the same GSTT-1 polymorphism affects the severity of AP in a population from Pittsburgh, Pa., USA. METHODS Ninety-one consecutive patients with AP (19 severe) were prospectively evaluated. The GSTT-1 haplotypes were determined by PCR amplification in all patients and 268 controls. The resulting genotypes were classified as functional (GSTT-1*A/*A or *A/null) and nonfunctional (GSTT-1 null/null) phenotypes. RESULTS The relative frequencies of functional GSTT-1 phenotypes were similar in subjects with severe AP (15 of 19, 78.9%) and mild AP (61 of 72, 84.7%; p = 0.54) and in the controls (228 of 268, 85.1%; p = 0.66). Furthermore, the GSTT-1 functional and nonfunctional phenotypes were not associated with serum C-reactive protein levels (11.9 vs. 7.3 mg/dl; p = 0.19), interleukin-6 levels (74 vs. 60 pg/ml; p = 0.9), APACHE II scores (7 vs. 9; p = 0.26), or 48-hour Ranson scores (1 vs. 1; p = 0.63). CONCLUSION Functional GSTT-1 phenotypes do not correlate with susceptibility to AP or severity of AP in our patient population.
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Foxall G, McCahon R, Lamb J, Hardman JG, Bedforth NM. Levobupivacaine-induced seizures and cardiovascular collapse treated with Intralipid®. Anaesthesia 2007; 62:516-8. [PMID: 17448066 DOI: 10.1111/j.1365-2044.2007.05065.x] [Citation(s) in RCA: 181] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Lipid emulsion has been used in the successful treatment of local anaesthetic-induced cardiovascular collapse in animals and in two cases of cardiac arrest in humans. Previous reports of levobupivacaine toxicity in humans have been characterised by neurological signs and symptoms, without serious cardiovascular events. We present a case in which presumed intravenous injection of levobupivacaine led to neurological and cardiovascular consequences. This was treated successfully by resuscitation that included intravenous Intralipid infusion.
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Lamb J. A reply. Anaesthesia 2007. [DOI: 10.1111/j.1365-2044.1993.tb06869.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Vankayalapati H, Grand C, Liu X, Zhang X, Lamb J, Lloyd M, Sunseri J, Bearss D. 341 POSTER The discovery of MP529, a potent and selective aurora kinase inhibitor using CLIMB. EJC Suppl 2006. [DOI: 10.1016/s1359-6349(06)70346-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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