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Nastouli A, Sweeney J, Harasek M, Karabelas AJ, Patsios SI. Development of a hybrid bio-purification process of lactic acid solutions employing an engineered E. coli strain in a membrane bioreactor. Biotechnol Biofuels Bioprod 2024; 17:48. [PMID: 38555439 PMCID: PMC10981347 DOI: 10.1186/s13068-024-02497-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND A potential alternative to lactic acid production through sugar fermentation is its recovery from grass silage leachate. The separation and purification of lactic acid from fermentation broths remain a key issue, as it amounts to up to 80% of its industrial production cost. In this study, a genetically engineered E. coli strain (A1:ldhA), that cannot catabolize lactic acid, has been used to selectively remove impurities from a synthetic medium comprising typical components (i.e., glucose and acetic acid) of green grass silage leachate. A systematic approach has been followed to provide a proof-of-concept for a bio-purification process of lactic acid solutions in a membrane bioreactor operating in semi-continuous mode. RESULTS The synthetic medium composition was initially optimized in shake-flasks experiments, followed by scale-up in bench-scale bioreactor. Complete (i.e., 100%) and 60.4% removal for glucose and acetic acid, respectively, has been achieved in batch bioreactor experiments with a synthetic medium comprising 0.5 g/L glucose and 0.5 g/L acetic acid as carbon sources, and 10 g/L lactic acid; no lactic acid catabolism was observed in all batch fermentation tests. Afterwards, a hybrid biotechnological process combining semi-continuous bioreactor fermentation and ultrafiltration membrane separation (membrane bioreactor) was applied to in-situ separate purified medium from the active cells. The process was assessed under different semi-continuous operating conditions, resulting in a bacteria-free effluent and 100% glucose and acetic acid depletion, with no lactic acid catabolism, thus increasing the purity of the synthetic lactic acid solution. CONCLUSIONS The study clearly demonstrated that a bio-purification process for lactic acid employing the engineered E. coli strain cultivated in a membrane bioreactor is a technically feasible concept, paving the way for further technological advancement.
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Affiliation(s)
- Alexandra Nastouli
- Laboratory of Natural Resources and Renewable Energies, Chemical Process and Energy Resources Institute (CPERI), Centre for Research and Technology-Hellas (CERTH), Thermi, Thessaloniki, Greece
- Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria
| | - Joseph Sweeney
- School of Biosystems and Food Engineering, University College Dublin (UCD), Belfield, Dublin, Ireland
| | - Michael Harasek
- Institute of Chemical, Environmental and Bioscience Engineering, TU Wien, Vienna, Austria
| | - Anastasios J Karabelas
- Laboratory of Natural Resources and Renewable Energies, Chemical Process and Energy Resources Institute (CPERI), Centre for Research and Technology-Hellas (CERTH), Thermi, Thessaloniki, Greece
| | - Sotiris I Patsios
- Laboratory of Natural Resources and Renewable Energies, Chemical Process and Energy Resources Institute (CPERI), Centre for Research and Technology-Hellas (CERTH), Thermi, Thessaloniki, Greece.
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Feler J, Chuck C, Anderson M, Poggi J, Sweeney J, Moldovan K, Jayaraman MV, McTaggart R, Torabi R. Dual antiplatelet use in the management of COVID-19 associated acute ischemic stroke reocclusion. Interv Neuroradiol 2023; 29:540-547. [PMID: 35549746 PMCID: PMC10549714 DOI: 10.1177/15910199221097484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/11/2022] [Indexed: 11/17/2022] Open
Abstract
INTRO SARS-CoV-2 (COVID-19) infection is associated with acute ischemic stroke (AIS), which may be due to a prothrombotic state. Early reports have suggested high rates of reocclusion following mechanical thrombectomy (MT) with poor radiographic and clinical outcomes. We report our early experience using intra-procedural antithrombotics to address SARS-CoV-2 reocclusion. METHODS We identified 6 patients that experienced early reocclusion after MT for COVID-19-associated AIS through retrospective chart review abstracting their basic demographics, COVID-19 status, and stroke management. All these patients were treated after reocclusion with aspirin and cangrelor intra-procedurally, the latter of which was converted to ticagrelor post-procedurally. Some patients additionally received argatroban infusion intraprocedurally. RESULTS Mean age was 54. There were 3 post-procedural and 3 intra-procedural re-occlusions. After repeat thrombectomy and treatment with aspirin and cangrelor, those with post-procedure reocclusion did not show further reocclusion, while those with intra-procedural reocclusion showed radiographic improvement with intraprocedural cangrelor administration. Outcomes for these patients were poor, with a median mRS of 4. Two patients developed petechial hemorrhage of their stroke which was managed conservatively, and one developed a retroperitoneal hemorrhage from femoral access requiring transfusion. There were no patients who developed new parenchymal hematomas. CONCLUSION COVID-19 AIS may be associated with a hypercoagulable state which risks malignant reocclusion complicating MT. We found antithrombotic treatment periprocedural cangrelor with or without argatroban transitioned to oral aspirin with ticagrelor to be a viable method for management of these patients.
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Affiliation(s)
- Joshua Feler
- Department of Neurosurgery, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Carlin Chuck
- Department of Neurosurgery, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Matthew Anderson
- Department of Neurosurgery, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Jonathan Poggi
- Department of Neurosurgery, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Joseph Sweeney
- Department of Hematology-Oncology, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Krisztina Moldovan
- Department of Interventional Radiology, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Mahesh V. Jayaraman
- Department of Interventional Radiology, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Ryan McTaggart
- Department of Interventional Radiology, Brown University, The Warren Alpert Medical School, Providence, RI, USA
| | - Radmehr Torabi
- Department of Neurosurgery, Brown University, The Warren Alpert Medical School, Providence, RI, USA
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Sweeney J, Pahwa S, Trivedi J, Slaughter MS. Durable left ventricular assist device implant-how I teach it. Indian J Thorac Cardiovasc Surg 2023; 39:114-122. [PMID: 37525699 PMCID: PMC10387025 DOI: 10.1007/s12055-023-01533-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 04/30/2023] [Accepted: 05/03/2023] [Indexed: 08/02/2023] Open
Abstract
Left ventricular assist devices (LVADs) have become a mainstay of advanced heart failure therapy. The technical aspects of performing a device implant are nuanced and attention to these details allows for successful therapy with good outcomes. As more patient with heart failure are expected to benefit from mechanical circulatory support, the need for a concise and consistent technique for LVAD implantation is needed. Teaching this procedure is most comprehensible when broken down into separate steps, as with many other procedures. Here, we describe our standard protocol for LVAD implantation, as well as rudimentary outcomes of 6-year experience in our center. We hope this will provide some insight and guidance to centers who are expanding into the field of mechanical circulatory support and can help them form a foundation with which to build their own experience and success.
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Affiliation(s)
- Joseph Sweeney
- Department of Cardiothoracic Surgery, University of Louisville, 201 Abraham Flexner Way, Suite 1200, Louisville, KY 40202 USA
| | - Siddharth Pahwa
- Department of Cardiothoracic Surgery, University of Louisville, 201 Abraham Flexner Way, Suite 1200, Louisville, KY 40202 USA
| | - Jaimin Trivedi
- Department of Cardiothoracic Surgery, University of Louisville, 201 Abraham Flexner Way, Suite 1200, Louisville, KY 40202 USA
| | - Mark Sullivan Slaughter
- Department of Cardiothoracic Surgery, University of Louisville, 201 Abraham Flexner Way, Suite 1200, Louisville, KY 40202 USA
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Maslow A, Cheves T, Joyce MF, Apruzzese P, Sweeney J. Interaction Between Platelet and Fibrinogen on Clot Strength in Healthy Patients. J Cardiothorac Vasc Anesth 2023; 37:942-947. [PMID: 36933991 DOI: 10.1053/j.jvca.2023.02.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Revised: 02/12/2023] [Accepted: 02/13/2023] [Indexed: 02/22/2023]
Abstract
OBJECTIVE The purpose of this study was to explore the relationship between platelet concentration (PLT) (× 109/L) and clot strength measured by thromboelastography maximum amplitude (TEG-MA) in healthy volunteers without a history of coagulation abnormalities. Secondarily, the relationship between fibrinogen (mg/dL) and TEG-MA was analyzed. DESIGN A prospective study. SETTING At a university's tertiary-care center. MEASUREMENTS AND MAIN RESULTS Using whole blood, PLT was reduced in the first part, and hematocrit was reduced in the second part of the study by hemodilution with platelet-rich and -poor plasma. Thromboelastography (TEG 5000 Haemonetics) was performed to measure clot formation and strength. Spearman correlation coefficients regression analyses and receiver-operating characteristics (ROC) were obtained to analyze the relationships among PLT, fibrinogen, and TEG-MA. Strong correlations were found in univariate analysis between PLT and TEG-MA (r = 0.88; p < 0.0001) and between Fibrinogen and TEG-MA (r = 0.70; p = 0.003). A biphasic relationship between PLT and TEG-MA was linear below a PLT 90 × 109/L, followed by a plateau above 100 × 109/L (p = 0.001). A linear relationship between fibrinogen (190-474 mg/dL) and TEG-MA (53-76 mm) was found (p = 0.0007). The ROC analysis found that PLT = 60 × 109/L was associated with a TEG-MA of 53.0 mm. The product of PLT and fibrinogen concentrations was more strongly correlated (r = 0.91) to TEG-MA than either PLT (r = 0.86) or fibrinogen (r = 0.71) alone. A ROC analysis revealed that a TEG-MA of 55 mm was associated with a PLT × fibrinogen of 16,720. CONCLUSION In healthy patients, a PLT of 60 × 109/L was associated with normal clot strength (TEG-MA ≥53 mm), and there was little change in clot strength with PLT >90 × 109/L. Although prior analyses described the contributions of platelets and fibrinogen toward clot strength, they are presented and discussed independently. The data above described clot strength as an interaction among them. Future analyses and clinical care should evaluate and recognize the interplay.
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Affiliation(s)
- Andrew Maslow
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI.
| | - Tracey Cheves
- Department of Hematology, Rhode Island Hospital, Providence, RI
| | | | | | - Joseph Sweeney
- Department of Hematology, Rhode Island Hospital, Providence, RI
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Asher S, Maslow A, Mishra V, Flaherty D, Hayward G, Whiteneck S, Cheves T, Sweeney J. A Pilot Study to Assess the Clinical Onset of IV Heparin in Interventional Cardiology and Cardiac Surgery. J Cardiothorac Vasc Anesth 2022; 36:4281-4288. [PMID: 36100498 DOI: 10.1053/j.jvca.2022.07.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 11/11/2022]
Abstract
OBJECTIVES To determine the onset of heparin anticoagulation, using 2 different measures of activated clotting times (ACT), thromboelastography (TEG; R-time), and anti-Xa levels, after administering low- (100 U/kg) and high- (300 U/kg) dose intravenous (IV) heparin to patients undergoing transcatheter aortic valve replacement (TAVR) and cardiac surgery, respectively. DESIGN Prospective study. SETTING Single academic institution. PARTICIPANTS Patients with normal baseline coagulation presenting for TAVR or cardiac valve surgery. INTERVENTIONS Coagulation studies were performed at baseline, 30 seconds, 90 seconds, and 180 seconds after IV heparin administration. The tests included iSTAT (iACT) and Hemochron ACT (hACT), TEG R-Time, and anti-Xa levels. At the authors' institution, anti-Xa is the preferred measure of heparin anticoagulation when time permits. ACT, a rapid point- of-care test, is used to assess intraprocedural anticoagulation. MEASUREMENTS AND MAIN RESULTS After both low- and high-dose heparin, there are peak increases in ACT and anti-Xa at 30 seconds, followed by a decline at 90 seconds and plateau at 180 seconds. The TEG R-time remained elevated (>80 minutes) throughout. For TAVR cases, all anti-Xa was >1.5 IU/mL, and was associated with an iACT >180 seconds and an hACT >200 seconds. For cardiac valve surgery cases, all anti-Xa was >2.4 and associated with an iACT >420 seconds and and hACT >340 seconds. Compared with hACT, iACTs were significantly lower at all time points after low-dose heparin, but not after high-dose heparin. CONCLUSIONS In this pilot study, heparin anticoagulation was detected as early as 30 seconds after IV administration, based on ACT, anti-Xa levels, and TEG R-time.
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Affiliation(s)
- Shyamal Asher
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI.
| | - Andrew Maslow
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI
| | - Vikas Mishra
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI
| | - Devon Flaherty
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI
| | - Geoffrey Hayward
- Department of Anesthesiology, Rhode Island Hospital, Providence, RI
| | | | - Tracey Cheves
- Department of Hematology, Rhode Island Hospital, Providence, RI
| | - Joseph Sweeney
- Department of Hematology, Rhode Island Hospital, Providence, RI
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Nations M, Romero JA, Gupta DK, Sweeney J. High-fidelity inference of local impurity profiles in C-2W using Bayesian tomography. Rev Sci Instrum 2022; 93:113522. [PMID: 36461419 DOI: 10.1063/5.0101741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Accepted: 09/20/2022] [Indexed: 06/17/2023]
Abstract
In C-2W (also called "Norman") [1], beam-driven field reversed configuration plasmas embedded in a magnetic mirror are produced and sustained in a steady state. A multi-chord passive Doppler spectroscopy diagnostic provides line-integrated impurity emission measurements near the center plane of the confinement vessel with fast time resolution. The high degree of plasma non-uniformity across optical sightlines can preclude direct fitting of the measured line-integrated spectra. To overcome this challenge, local impurity profiles are inferred using Bayesian tomography, a superior analysis technique based on a complete forward model of the diagnostic. The measured emission of O4+ triplet lines near 278.4 nm is modeled assuming two independent populations: thermal and beam ions. Gaussian processes are used to generate and infer local profiles. The inference incorporates details of the geometrical arrangement of the diagnostic, instrument function, intensity calibration, and a noise model. Markov chain Monte Carlo (MCMC) sampling of the posterior distribution of solutions provides high-fidelity uncertainty estimates. The reconstructed O4+ impurity profiles are consistent with data from other diagnostics and show good agreement with expected physics based on previously developed models of biasing circuit and impurity transport.
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Affiliation(s)
- M Nations
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - J A Romero
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - D K Gupta
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - J Sweeney
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
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Basso C, Goldstein E, Dai X, Rana M, Shu L, Chen C, Sweeney J, Stretz C, Smith EE, Gurol ME, de Havenon A, Burton T, Fussell-Louie D, Furie K, Yaghi S. Acute ischemic stroke on anti-Xa inhibitors: Pharmacokinetics and outcomes. J Stroke Cerebrovasc Dis 2022; 31:106612. [PMID: 35863261 DOI: 10.1016/j.jstrokecerebrovasdis.2022.106612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 05/16/2022] [Accepted: 06/19/2022] [Indexed: 10/17/2022] Open
Abstract
BACKGROUND AND PURPOSE Direct oral anticoagulant (DOAC) ingestion within 48 h is an exclusion for thrombolysis in acute ischemic stroke (AIS) patients. We aim to shed light on pharmacokinetic correlates and outcomes in patients with AIS excluded from thrombolysis due to DOAC use. METHODS This is a single center retrospective study of consecutive patients with AIS within 4.5 h from last known normal and excluded from thrombolytic therapy due to confirmed Xa inhibitor DOAC (DOACXa) intake within the prior 48 h. We used linear regression to test the correlation between time from last DOACXa ingestion and anti-Xa level. RESULTS Over a period of 2.5 years, we identified 44 patients who did not receive thrombolysis because of presumed DOAC intake within 48 h. In adjusted linear regression, there was an association between time from last DOAC ingestion and Xa level (beta = -0.69, p < 0.001). Among the 37 patients with known atrial fibrillation not receiving alteplase due to DOAC use, the 90-day mortality was 35.1% (13/37) and 77% (10/13) of deaths were stroke related. CONCLUSIONS Patients with AIS on DOAC therapy face a heightened risk of mortality. Studies are needed to investigate the safety and efficacy of thrombolysis in such patients based on time of last DOAC ingestion and/or anti-Xa/drug level.
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Affiliation(s)
- Colin Basso
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Eric Goldstein
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Xing Dai
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Maheen Rana
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Liqi Shu
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Casandra Chen
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Joseph Sweeney
- Department of Hematology, Brown University, Providence, RI, USA
| | - Christoph Stretz
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Eric E Smith
- Department of Clinical Neurosciences and Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada
| | - M Edip Gurol
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Adam de Havenon
- Department of Neurology, Yale New Haven Hospital, New Haven, CT, USA
| | - Tina Burton
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | | | - Karen Furie
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
| | - Shadi Yaghi
- Department of Neurology, Brown University, 593 Eddy Street APC 5, Providence, RI 02903, USA
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Chamaria S, Ueyama H, Yasumura K, Johnson KW, Vengrenyuk Y, Okamoto N, Barman N, Bhatheja S, Kapur V, Hasan C, Sweeney J, Baber U, Sharma SK, Narula J, Kini AS. Coronary plaque vulnerability in statin-treated patients with elevated LDL-C and hs-CRP: optical coherence tomography study. Int J Cardiovasc Imaging 2022. [DOI: 10.1007/s10554-021-02238-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wymant C, Bezemer D, Blanquart F, Ferretti L, Gall A, Hall M, Golubchik T, Bakker M, Ong SH, Zhao L, Bonsall D, de Cesare M, MacIntyre-Cockett G, Abeler-Dörner L, Albert J, Bannert N, Fellay J, Grabowski MK, Gunsenheimer-Bartmeyer B, Günthard HF, Kivelä P, Kouyos RD, Laeyendecker O, Meyer L, Porter K, Ristola M, van Sighem A, Berkhout B, Kellam P, Cornelissen M, Reiss P, Fraser C, Aubert V, Battegay M, Bernasconi E, Böni J, Braun DL, Bucher HC, Burton-Jeangros C, Calmy A, Cavassini M, Dollenmaier G, Egger M, Elzi L, Fehr J, Fellay J, Furrer H, Fux CA, Gorgievski M, Günthard H, Haerry D, Hasse B, Hirsch HH, Hoffmann M, Hösli I, Kahlert C, Kaiser L, Keiser O, Klimkait T, Kouyos R, Kovari H, Ledergerber B, Martinetti G, de Tejada BM, Marzolini C, Metzner K, Müller N, Nadal D, Nicca D, Pantaleo G, Rauch A, Regenass S, Rudin C, Schöni-Affolter F, Schmid P, Speck R, Stöckle M, Tarr P, Trkola A, Vernazza P, Weber R, Yerly S, van der Valk M, Geerlings SE, Goorhuis A, Hovius JW, Lempkes B, Nellen FJB, van der Poll T, Prins JM, Reiss P, van Vugt M, Wiersinga WJ, Wit FWMN, van Duinen M, van Eden J, Hazenberg A, van Hes AMH, Rajamanoharan S, Robinson T, Taylor B, Brewer C, Mayr C, Schmidt W, Speidel A, Strohbach F, Arastéh K, Cordes C, Pijnappel FJJ, Stündel M, Claus J, Baumgarten A, Carganico A, Ingiliz P, Dupke S, Freiwald M, Rausch M, Moll A, Schleehauf D, Smalhout SY, Hintsche B, Klausen G, Jessen H, Jessen A, Köppe S, Kreckel P, Schranz D, Fischer K, Schulbin H, Speer M, Weijsenfeld AM, Glaunsinger T, Wicke T, Bieniek B, Hillenbrand H, Schlote F, Lauenroth-Mai E, Schuler C, Schürmann D, Wesselmann H, Brockmeyer N, Jurriaans S, Gehring P, Schmalöer D, Hower M, Spornraft-Ragaller P, Häussinger D, Reuter S, Esser S, Markus R, Kreft B, Berzow D, Back NKT, Christl A, Meyer A, Plettenberg A, Stoehr A, Graefe K, Lorenzen T, Adam A, Schewe K, Weitner L, Fenske S, Zaaijer HL, Hansen S, Stellbrink HJ, Wiemer D, Hertling S, Schmidt R, Arbter P, Claus B, Galle P, Jäger H, Jä Gel-Guedes E, Berkhout B, Postel N, Fröschl M, Spinner C, Bogner J, Salzberger B, Schölmerich J, Audebert F, Marquardt T, Schaffert A, Schnaitmann E, Cornelissen MTE, Trein A, Frietsch B, Müller M, Ulmer A, Detering-Hübner B, Kern P, Schubert F, Dehn G, Schreiber M, Güler C, Schinkel CJ, Gunsenheimer-Bartmeyer B, Schmidt D, Meixenberger K, Bannert N, Wolthers KC, Peters EJG, van Agtmael MA, Autar RS, Bomers M, Sigaloff KCE, Heitmuller M, Laan LM, Ang CW, van Houdt R, Jonges M, Kuijpers TW, Pajkrt D, Scherpbier HJ, de Boer C, van der Plas A, van den Berge M, Stegeman A, Baas S, Hage de Looff L, Buiting A, Reuwer A, Veenemans J, Wintermans B, Pronk MJH, Ammerlaan HSM, van den Bersselaar DNJ, de Munnik ES, Deiman B, Jansz AR, Scharnhorst V, Tjhie J, Wegdam MCA, van Eeden A, Nellen J, Brokking W, Elsenburg LJM, Nobel H, van Kasteren MEE, Berrevoets MAH, Brouwer AE, Adams A, van Erve R, de Kruijf-van de Wiel BAFM, Keelan-Phaf S, van de Ven B, van der Ven B, Buiting AGM, Murck JL, de Vries-Sluijs TEMS, Bax HI, van Gorp ECM, de Jong-Peltenburg NC, de Mendonç A Melo M, van Nood E, Nouwen JL, Rijnders BJA, Rokx C, Schurink CAM, Slobbe L, Verbon A, Bassant N, van Beek JEA, Vriesde M, van Zonneveld LM, de Groot J, Boucher CAB, Koopmans MPG, van Kampen JJA, Fraaij PLA, van Rossum AMC, Vermont CL, van der Knaap LC, Visser E, Branger J, Douma RA, Cents-Bosma AS, Duijf-van de Ven CJHM, Schippers EF, van Nieuwkoop C, van Ijperen JM, Geilings J, van der Hut G, van Burgel ND, Leyten EMS, Gelinck LBS, Mollema F, Davids-Veldhuis S, Tearno C, Wildenbeest GS, Heikens E, Groeneveld PHP, Bouwhuis JW, Lammers AJJ, Kraan S, van Hulzen AGW, Kruiper MSM, van der Bliek GL, Bor PCJ, Debast SB, Wagenvoort GHJ, Kroon FP, de Boer MGJ, Jolink H, Lambregts MMC, Roukens AHE, Scheper H, Dorama W, van Holten N, Claas ECJ, Wessels E, den Hollander JG, El Moussaoui R, Pogany K, Brouwer CJ, Smit JV, Struik-Kalkman D, van Niekerk T, Pontesilli O, Lowe SH, Oude Lashof AML, Posthouwer D, van Wolfswinkel ME, Ackens RP, Burgers K, Schippers J, Weijenberg-Maes B, van Loo IHM, Havenith TRA, van Vonderen MGA, Kampschreur LM, Faber S, Steeman-Bouma R, Al Moujahid A, Kootstra GJ, Delsing CE, van der Burg-van de Plas M, Scheiberlich L, Kortmann W, van Twillert G, Renckens R, Ruiter-Pronk D, van Truijen-Oud FA, Cohen Stuart JWT, Jansen ER, Hoogewerf M, Rozemeijer W, van der Reijden WA, Sinnige JC, Brinkman K, van den Berk GEL, Blok WL, Lettinga KD, de Regt M, Schouten WEM, Stalenhoef JE, Veenstra J, Vrouenraets SME, Blaauw H, Geerders GF, Kleene MJ, Kok M, Knapen M, van der Meché IB, Mulder-Seeleman E, Toonen AJM, Wijnands S, Wttewaal E, Kwa D, van Crevel R, van Aerde K, Dofferhoff ASM, Henriet SSV, Ter Hofstede HJM, Hoogerwerf J, Keuter M, Richel O, Albers M, Grintjes-Huisman KJT, de Haan M, Marneef M, Strik-Albers R, Rahamat-Langendoen J, Stelma FF, Burger D, Gisolf EH, Hassing RJ, Claassen M, Ter Beest G, van Bentum PHM, Langebeek N, Tiemessen R, Swanink CMA, van Lelyveld SFL, Soetekouw R, van der Prijt LMM, van der Swaluw J, Bermon N, van der Reijden WA, Jansen R, Herpers BL, Veenendaal D, Verhagen DWM, Lauw FN, van Broekhuizen MC, van Wijk M, Bierman WFW, Bakker M, Kleinnijenhuis J, Kloeze E, Middel A, Postma DF, Schölvinck EH, Stienstra Y, Verhage AR, Wouthuyzen-Bakker M, Boonstra A, de Groot-de Jonge H, van der Meulen PA, de Weerd DA, Niesters HGM, van Leer-Buter CC, Knoester M, Hoepelman AIM, Arends JE, Barth RE, Bruns AHW, Ellerbroek PM, Mudrikova T, Oosterheert JJ, Schadd EM, van Welzen BJ, Aarsman K, Griffioen-van Santen BMG, de Kroon I, van Berkel M, van Rooijen CSAM, Schuurman R, Verduyn-Lunel F, Wensing AMJ, Bont LJ, Geelen SPM, Loeffen YGT, Wolfs TFW, Nauta N, Rooijakkers EOW, Holtsema H, Voigt R, van de Wetering D, Alberto A, van der Meer I, Rosingh A, Halaby T, Zaheri S, Boyd AC, Bezemer DO, van Sighem AI, Smit C, Hillebregt M, de Jong A, Woudstra T, Bergsma D, Meijering R, van de Sande L, Rutkens T, van der Vliet S, de Groot L, van den Akker M, Bakker Y, El Berkaoui A, Bezemer M, Brétin N, Djoechro E, Groters M, Kruijne E, Lelivelt KJ, Lodewijk C, Lucas E, Munjishvili L, Paling F, Peeck B, Ree C, Regtop R, Ruijs Y, Schoorl M, Schnörr P, Scheigrond A, Tuijn E, Veenenberg L, Visser KM, Witte EC, Ruijs Y, Van Frankenhuijsen M, Allegre T, Makhloufi D, Livrozet JM, Chiarello P, Godinot M, Brunel-Dalmas F, Gibert S, Trepo C, Peyramond D, Miailhes P, Koffi J, Thoirain V, Brochier C, Baudry T, Pailhes S, Lafeuillade A, Philip G, Hittinger G, Assi A, Lambry V, Rosenthal E, Naqvi A, Dunais B, Cua E, Pradier C, Durant J, Joulie A, Quinsat D, Tempesta S, Ravaux I, Martin IP, Faucher O, Cloarec N, Champagne H, Pichancourt G, Morlat P, Pistone T, Bonnet F, Mercie P, Faure I, Hessamfar M, Malvy D, Lacoste D, Pertusa MC, Vandenhende MA, Bernard N, Paccalin F, Martell C, Roger-Schmelz J, Receveur MC, Duffau P, Dondia D, Ribeiro E, Caltado S, Neau D, Dupont M, Dutronc H, Dauchy F, Cazanave C, Vareil MO, Wirth G, Le Puil S, Pellegrin JL, Raymond I, Viallard JF, Chaigne de Lalande S, Garipuy D, Delobel P, Obadia M, Cuzin L, Alvarez M, Biezunski N, Porte L, Massip P, Debard A, Balsarin F, Lagarrigue M, Prevoteau du Clary F, Aquilina C, Reynes J, Baillat V, Merle C, Lemoing V, Atoui N, Makinson A, Jacquet JM, Psomas C, Tramoni C, Aumaitre H, Saada M, Medus M, Malet M, Eden A, Neuville S, Ferreyra M, Sotto A, Barbuat C, Rouanet I, Leureillard D, Mauboussin JM, Lechiche C, Donsesco R, Cabie A, Abel S, Pierre-Francois S, Batala AS, Cerland C, Rangom C, Theresine N, Hoen B, Lamaury I, Fabre I, Schepers K, Curlier E, Ouissa R, Gaud C, Ricaud C, Rodet R, Wartel G, Sautron C, Beck-Wirth G, Michel C, Beck C, Halna JM, Kowalczyk J, Benomar M, Drobacheff-Thiebaut C, Chirouze C, Faucher JF, Parcelier F, Foltzer A, Haffner-Mauvais C, Hustache Mathieu M, Proust A, Piroth L, Chavanet P, Duong M, Buisson M, Waldner A, Mahy S, Gohier S, Croisier D, May T, Delestan M, Andre M, Zadeh MM, Martinot M, Rosolen B, Pachart A, Martha B, Jeunet N, Rey D, Cheneau C, Partisani M, Priester M, Bernard-Henry C, Batard ML, Fischer P, Berger JL, Kmiec I, Robineau O, Huleux T, Ajana F, Alcaraz I, Allienne C, Baclet V, Meybeck A, Valette M, Viget N, Aissi E, Biekre R, Cornavin P, Merrien D, Seghezzi JC, Machado M, Diab G, Raffi F, Bonnet B, Allavena C, Grossi O, Reliquet V, Billaud E, Brunet C, Bouchez S, Morineau-Le Houssine P, Sauser F, Boutoille D, Besnier M, Hue H, Hall N, Brosseau D, Souala F, Michelet C, Tattevin P, Arvieux C, Revest M, Leroy H, Chapplain JM, Dupont M, Fily F, Patra-Delo S, Lefeuvre C, Bernard L, Bastides F, Nau P, Verdon R, de la Blanchardiere A, Martin A, Feret P, Geffray L, Daniel C, Rohan J, Fialaire P, Chennebault JM, Rabier V, Abgueguen P, Rehaiem S, Luycx O, Niault M, Moreau P, Poinsignon Y, Goussef M, Mouton-Rioux V, Houlbert D, Alvarez-Huve S, Barbe F, Haret S, Perre P, Leantez-Nainville S, Esnault JL, Guimard T, Suaud I, Girard JJ, Simonet V, Debab Y, Schmit JL, Jacomet C, Weinberck P, Genet C, Pinet P, Ducroix S, Durox H, Denes É, Abraham B, Gourdon F, Antoniotti O, Molina JM, Ferret S, Lascoux-Combe C, Lafaurie M, Colin de Verdiere N, Ponscarme D, De Castro N, Aslan A, Rozenbaum W, Pintado C, Clavel F, Taulera O, Gatey C, Munier AL, Gazaigne S, Penot P, Conort G, Lerolle N, Leplatois A, Balausine S, Delgado J, Timsit J, Tabet M, Gerard L, Girard PM, Picard O, Tredup J, Bollens D, Valin N, Campa P, Bottero J, Lefebvre B, Tourneur M, Fonquernie L, Wemmert C, Lagneau JL, Yazdanpanah Y, Phung B, Pinto A, Vallois D, Cabras O, Louni F, Pialoux G, Lyavanc T, Berrebi V, Chas J, Lenagat S, Rami A, Diemer M, Parrinello M, Depond A, Salmon D, Guillevin L, Tahi T, Belarbi L, Loulergue P, Zak Dit Zbar O, Launay O, Silbermann B, Leport C, Alagna L, Pietri MP, Simon A, Bonmarchand M, Amirat N, Pichon F, Kirstetter M, Katlama C, Valantin MA, Tubiana R, Caby F, Schneider L, Ktorza N, Calin R, Merlet A, Ben Abdallah S, Weiss L, Buisson M, Batisse D, Karmochine M, Pavie J, Minozzi C, Jayle D, Castel P, Derouineau J, Kousignan P, Eliazevitch M, Pierre I, Collias L, Viard JP, Gilquin J, Sobel A, Slama L, Ghosn J, Hadacek B, Thu-Huyn N, Nait-Ighil L, Cros A, Maignan A, Duvivier C, Consigny PH, Lanternier F, Shoai-Tehrani M, Touam F, Jerbi S, Bodard L, Jung C, Goujard C, Quertainmont Y, Duracinsky M, Segeral O, Blanc A, Peretti D, Cheret A, Chantalat C, Dulucq MJ, Levy Y, Lelievre JD, Lascaux AS, Dumont C, Boue F, Chambrin V, Abgrall S, Kansau I, Raho-Moussa M, De Truchis P, Dinh A, Davido B, Marigot D, Berthe H, Devidas A, Chevojon P, Chabrol A, Agher N, Lemercier Y, Chaix F, Turpault I, Bouchaud O, Honore P, Rouveix E, Reimann E, Belan AG, Godin Collet C, Souak S, Mortier E, Bloch M, Simonpoli AM, Manceron V, Cahitte I, Hiraux E, Lafon E, Cordonnier F, Zeng AF, Zucman D, Majerholc C, Bornarel D, Uludag A, Gellen-Dautremer J, Lefort A, Bazin C, Daneluzzi V, Gerbe J, Jeantils V, Coupard M, Patey O, Bantsimba J, Delllion S, Paz PC, Cazenave B, Richier L, Garrait V, Delacroix I, Elharrar B, Vittecoq D, Bolliot C, Lepretre A, Genet P, Masse V, Perrone V, Boussard JL, Chardon P, Froguel E, Simon P, Tassi S, Avettand Fenoel V, Barin F, Bourgeois C, Cardon F, Chaix ML, Delfraissy JF, Essat A, Fischer H, Lecuroux C, Meyer L, Petrov-Sanchez V, Rouzioux C, Saez-Cirion A, Seng R, Kuldanek K, Mullaney S, Young C, Zucchetti A, Bevan MA, McKernan S, Wandolo E, Richardson C, Youssef E, Green P, Faulkner S, Faville R, Herman S, Care C, Blackman H, Bellenger K, Fairbrother K, Phillips A, Babiker A, Delpech V, Fidler S, Clarke M, Fox J, Gilson R, Goldberg D, Hawkins D, Johnson A, Johnson M, McLean K, Nastouli E, Post F, Kennedy N, Pritchard J, Andrady U, Rajda N, Donnelly C, McKernan S, Drake S, Gilleran G, White D, Ross J, Harding J, Faville R, Sweeney J, Flegg P, Toomer S, Wilding H, Woodward R, Dean G, Richardson C, Perry N, Gompels M, Jennings L, Bansaal D, Browing M, Connolly L, Stanley B, Estreich S, Magdy A, O'Mahony C, Fraser P, Jebakumar SPR, David L, Mette R, Summerfield H, Evans M, White C, Robertson R, Lean C, Morris S, Winter A, Faulkner S, Goorney B, Howard L, Fairley I, Stemp C, Short L, Gomez M, Young F, Roberts M, Green S, Sivakumar K, Minton J, Siminoni A, Calderwood J, Greenhough D, DeSouza C, Muthern L, Orkin C, Murphy S, Truvedi M, McLean K, Hawkins D, Higgs C, Moyes A, Antonucci S, McCormack S, Lynn W, Bevan M, Fox J, Teague A, Anderson J, Mguni S, Post F, Campbell L, Mazhude C, Russell H, Gilson R, Carrick G, Ainsworth J, Waters A, Byrne P, Johnson M, Fidler S, Kuldanek K, Mullaney S, Lawlor V, Melville R, Sukthankar A, Thorpe S, Murphy C, Wilkins E, Ahmad S, Green P, Tayal S, Ong E, Meaden J, Riddell L, Loay D, Peacock K, Blackman H, Harindra V, Saeed AM, Allen S, Natarajan U, Williams O, Lacey H, Care C, Bowman C, Herman S, Devendra SV, Wither J, Bridgwood A, Singh G, Bushby S, Kellock D, Young S, Rooney G, Snart B, Currie J, Fitzgerald M, Arumainayyagam J, Chandramani S. A highly virulent variant of HIV-1 circulating in the Netherlands. Science 2022; 375:540-545. [PMID: 35113714 DOI: 10.1126/science.abk1688] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
We discovered a highly virulent variant of subtype-B HIV-1 in the Netherlands. One hundred nine individuals with this variant had a 0.54 to 0.74 log10 increase (i.e., a ~3.5-fold to 5.5-fold increase) in viral load compared with, and exhibited CD4 cell decline twice as fast as, 6604 individuals with other subtype-B strains. Without treatment, advanced HIV-CD4 cell counts below 350 cells per cubic millimeter, with long-term clinical consequences-is expected to be reached, on average, 9 months after diagnosis for individuals in their thirties with this variant. Age, sex, suspected mode of transmission, and place of birth for the aforementioned 109 individuals were typical for HIV-positive people in the Netherlands, which suggests that the increased virulence is attributable to the viral strain. Genetic sequence analysis suggests that this variant arose in the 1990s from de novo mutation, not recombination, with increased transmissibility and an unfamiliar molecular mechanism of virulence.
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Affiliation(s)
- Chris Wymant
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | | | - François Blanquart
- Centre for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS, INSERM, PSL Research University, Paris, France.,IAME, UMR 1137, INSERM, Université de Paris, Paris, France
| | - Luca Ferretti
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Astrid Gall
- European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, UK
| | - Matthew Hall
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Tanya Golubchik
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Margreet Bakker
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Swee Hoe Ong
- Wellcome Sanger Institute, Wellcome Genome Campus, Cambridge, UK
| | - Lele Zhao
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - David Bonsall
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Mariateresa de Cesare
- Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - George MacIntyre-Cockett
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Lucie Abeler-Dörner
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Jan Albert
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.,Department of Clinical Microbiology, Karolinska University Hospital, Stockholm, Sweden
| | - Norbert Bannert
- Division for HIV and Other Retroviruses, Department of Infectious Diseases, Robert Koch Institute, Berlin, Germany
| | - Jacques Fellay
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland.,Swiss Institute of Bioinformatics, Lausanne, Switzerland.,Precision Medicine Unit, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - M Kate Grabowski
- Department of Pathology, John Hopkins University, Baltimore, MD, USA
| | | | - Huldrych F Günthard
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | - Pia Kivelä
- Department of Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | - Roger D Kouyos
- Division of Infectious Diseases and Hospital Epidemiology, University Hospital Zurich, Zurich, Switzerland.,Institute of Medical Virology, University of Zurich, Zurich, Switzerland
| | | | - Laurence Meyer
- INSERM CESP U1018, Université Paris Saclay, APHP, Service de Santé Publique, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - Kholoud Porter
- Institute for Global Health, University College London, London, UK
| | - Matti Ristola
- Department of Infectious Diseases, Helsinki University Hospital, Helsinki, Finland
| | | | - Ben Berkhout
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Paul Kellam
- Kymab Ltd., Cambridge, UK.,Department of Infectious Diseases, Faculty of Medicine, Imperial College London, London, UK
| | - Marion Cornelissen
- Laboratory of Experimental Virology, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands.,Molecular Diagnostic Unit, Department of Medical Microbiology and Infection Prevention, Amsterdam University Medical Centers, University of Amsterdam, Amsterdam, Netherlands
| | - Peter Reiss
- Stichting HIV Monitoring, Amsterdam, Netherlands.,Department of Global Health, Amsterdam University Medical Centers, University of Amsterdam and Amsterdam Institute for Global Health and Development, Amsterdam, Netherlands
| | - Christophe Fraser
- Big Data Institute, Li Ka Shing Centre for Health Information and Discovery, Nuffield Department of Medicine, University of Oxford, Oxford, UK.,Wellcome Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
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Abstract
Systemic inflammation and coagulopathy are characteristic hallmarks of COVID19. “COVID coagulopathy” manifests mainly as a prothrombotic state affecting both large and small blood vessels, and presenting as arterial, venous, and microangiopathic thrombotic events with von Willebrand factor (VWF) and soluble thrombomodulin increased in hospitalized patients. The causes of coagulopathy are poorly understood. Aim: To investigate the relationship between von Willebrand factor (VWF) biomarkers, intravascular hemolysis, coagulation, and organ damage in COVID19 patients and to study their association with disease severity and mortality. Methods: 181 hospitalized adult COVID19 patients were randomly selected with a balanced distribution of survivors and non-survivors during the period of March 26th 2020 to May 5th 2020. The medical records and laboratory values were reviewed. Statistical analysis was performed using R studio V.3.6.2. Results: Patients who died (n=90) had significantly lower ADAMTS13 (a disintegrin and metalloproteinase with a thrombospondin type 1 motif, member 13) activity, elevated lactate dehydrogenase levels, increased schistocyte/RBC fragment counts, and elevated VWF antigen and activity levels compared to patients discharged alive (n=91). In 31 patients, we measured several of these biomarkers on two or more occasions. The trending of ADAMTS13 activity illustrated that it is not steady throughout the hospitalization course. ADAMTS13 activity levels tended to improve and/or reach normal levels in patients that survived, yet ADAMTS13 activity levels worsened in most patients that died. Likewise, the VWF antigen and activity levels tended to decrease in patients that survived whereas tended to increase well above the normal range (2-3 folds) in patients that died. D-Dimer levels trended downwards in survivors, sometimes to levels less than 1 µg/ml, yet tended to increase in patients who died. Given the relationship between ADAMTS13 activity and mortality, we wanted to determine a cut-point of initial ADAMTS13 activity (within 72 hours from admission) to predict mortality. 102 patients in our cohort had an ADAMTS13 activity measurement within this timeframe. We determined that this optimal cut-point of initial ADAMTS13 activity was 43% using Youden’s J statistic. Only 30% of patients who had an ADAMTS13 activity level of less than 43% on admission survived, yet 60% of patients survived who had an ADAMTS13 activity level of greater than 43% on admission. Conclusions: COVID-19 may present with low ADAMTS13 activity in a subset of hospitalized patients. Presence of schistocytes/RBC fragment and elevated D-dimer levels on admission may warrant a work-up for ADAMTS13 activity and VWF antigen and activity levels. These findings indicate the need for future investigation to study the relationship between endothelial and coagulation activation and the efficacy of treatments aimed at prevention and/or amelioration of microangiopathy in COVID-19.
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Affiliation(s)
| | | | - Gregory Krause
- Montefiore Medical Center, Albert Einstein College of Medicine
| | | | | | - Morayma Reyes
- Montefiore Medical Center, Albert Einstein College of Medicine
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Rogers R, Shehadeh F, Mylona EK, Rich J, Neill M, Touzard-Romo F, Geffert S, Larkin J, Bailey JA, Lu S, Sweeney J, Mylonakis E. Convalescent Plasma for Patients With Severe Coronavirus Disease 2019 (COVID-19): A Matched Cohort Study. Clin Infect Dis 2021; 73:e208-e214. [PMID: 33038227 PMCID: PMC7665324 DOI: 10.1093/cid/ciaa1548] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The efficacy of convalescent plasma (CP) for the treatment of coronavirus disease 2019 (COVID-19) remains unclear. METHODS In a matched cohort analysis of hospitalized patients with severe COVID-19, the impact of CP treatment on in-hospital mortality was evaluated using univariate and multivariate Cox proportional-hazards models, and the impact of CP treatment on time to hospital discharge was assessed using a stratified log-rank analysis. RESULTS In total, 64 patients who received CP a median of 7 days after symptom onset were compared to a matched control group of 177 patients. The incidence of in-hospital mortality was 12.5% and 15.8% in the CP and control groups, respectively (P = .52). There was no significant difference in the risk of in-hospital mortality between the 2 groups (adjusted hazard ratio [aHR] 0.93, 95% confidence interval [CI] .39-2.20). The overall rate of hospital discharge was not significantly different between the 2 groups (rate ratio [RR] 1.28, 95% CI .91-1.81), although there was a significantly increased rate of hospital discharge among patients 65-years-old or greater who received CP (RR 1.86, 95% CI 1.03-3.36). There was a greater than expected frequency of transfusion reactions in the CP group (2.8% reaction rate observed per unit transfused). CONCLUSIONS We did not demonstrate a significant difference in risk of mortality or rate of hospital discharge between the CP and control groups. There was a signal for improved outcomes among the elderly, and further adequately powered randomized studies should target this subgroup when assessing the efficacy of CP treatment.
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Affiliation(s)
- Ralph Rogers
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Fadi Shehadeh
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Evangelia K Mylona
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Josiah Rich
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Marguerite Neill
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Francine Touzard-Romo
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Sara Geffert
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jerome Larkin
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Jeffrey A Bailey
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Shaolei Lu
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Joseph Sweeney
- Department of Pathology and Laboratory Medicine, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
| | - Eleftherios Mylonakis
- Division of Infectious Diseases, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Nations M, Gupta D, Sweeney J, Frausto L, Tobin M. Publisher's Note: "Measurements of impurity ion temperature and velocity distributions via active charge-exchange recombination spectroscopy in C-2W" [Rev. Sci. Instrum. 92, 053512 (2021)]. Rev Sci Instrum 2021; 92:069901. [PMID: 34243518 DOI: 10.1063/5.0056405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Indexed: 06/13/2023]
Affiliation(s)
- M Nations
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - D Gupta
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - J Sweeney
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - L Frausto
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - M Tobin
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
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13
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Nations M, Gupta D, Sweeney J, Frausto L, Tobin M. Measurements of impurity ion temperature and velocity distributions via active charge-exchange recombination spectroscopy in C-2W. Rev Sci Instrum 2021; 92:053512. [PMID: 34243240 DOI: 10.1063/5.0043838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 04/07/2021] [Indexed: 06/13/2023]
Abstract
In TAE Technologies' C-2W experiment, electrode biasing is utilized for boundary control of a field-reversed configuration (FRC) plasma embedded in a magnetic mirror. Understanding the underlying physics associated with FRC rotation, stabilization, and heating is crucial for improving machine performance. Impurity ion rotation and temperature are sensitive to biasing effects, and measurements of these quantities can provide insight into important plasma dynamics and overall effectiveness of the biasing system. To this end, a charge-exchange recombination spectroscopy (ChERS) diagnostic was developed and deployed to measure local impurity ion temperature and velocity in the confinement vessel of C-2W. The system utilizes a new diagnostic neutral beam (40 keV, 8.5 A) and a fiber-coupled spectrometer with an image-intensified high-speed camera to measure beam-induced spectral line emission at multiple lines-of-sight. Design details and the first experimental results obtained with this new diagnostic are presented and discussed.
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Affiliation(s)
- M Nations
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - D Gupta
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - J Sweeney
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - L Frausto
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
| | - M Tobin
- TAE Technologies, Rancho Santa Margarita, California 92688, USA
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Granstedt EM, Gupta D, Sweeney J, Tobin M, Dikovsky M. Comprehensive imaging of C-2W plasmas: Instruments and applications. Rev Sci Instrum 2021; 92:043515. [PMID: 34243377 DOI: 10.1063/5.0043778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 03/15/2021] [Indexed: 06/13/2023]
Abstract
The C-2W device ("Norman") [Gota et al., Nucl. Fusion 59, 112009 (2019)] has produced and sustained beam-driven field-reversed configuration (FRC) plasmas embedded in a magnetic mirror geometry using neutral beams and end-bias electrodes located in expander divertors. Several discrete vessels comprise this device, and many imaging instruments are required in order to view the plasma throughout. To meet this need, a suite of spatially and radiometrically calibrated, high-speed camera systems have been deployed. Besides global visualization of the plasma evolution and macro-stability, this imaging suite has been used in a variety of applications. One example application is a tomographic reconstruction of passive impurity emission. Calculation of the magnetic field in the equilibrium vessel is complicated by eddy currents in conducting structures and internal currents in the high-β FRC plasma. In addition, thus far non-perturbative measurements of internal field have not been available. The tomographic reconstruction of O4+ impurity emission enables an independent visualization of the plasma geometry, serving as a check on magnetic modeling and indirect evidence for field reversal within the FRC. A second application uses the cameras to view the Balmer-α emission throughout the plasma in order to estimate the ionization rate in each region. These rates can then be incorporated into particle balance calculations and a circuit model for currents from the end-bias electrodes. Finally, arcing on the electrode surfaces is identified through automated image processing of carefully selected spectral line emission.
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Affiliation(s)
- E M Granstedt
- TAE Technologies, Inc., 19631 Pauling, Foothill Ranch, California 92610, USA
| | - D Gupta
- TAE Technologies, Inc., 19631 Pauling, Foothill Ranch, California 92610, USA
| | - J Sweeney
- TAE Technologies, Inc., 19631 Pauling, Foothill Ranch, California 92610, USA
| | - M Tobin
- TAE Technologies, Inc., 19631 Pauling, Foothill Ranch, California 92610, USA
| | - M Dikovsky
- Google, Inc., 1600 Amphitheatre Parkway, Mountain View, California 94043, USA
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15
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Naeem S, Gohh R, Bayliss G, Cosgrove C, Farmakiotis D, Merhi B, Morrissey P, Osband A, Bailey JA, Sweeney J, Rogers R. Successful recovery from COVID-19 in three kidney transplant recipients who received convalescent plasma therapy. Transpl Infect Dis 2020; 23:e13451. [PMID: 32815238 PMCID: PMC7460867 DOI: 10.1111/tid.13451] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/28/2022]
Abstract
Novel coronavirus disease 2019 (COVID‐19) is a highly infectious, rapidly spreading viral disease that typically presents with greater severity in patients with underlying medical conditions or those who are immunosuppressed. We present a novel case series of three kidney transplant recipients with COVID‐19 who recovered after receiving COVID‐19 convalescent plasma (CCP) therapy. Physicians should be aware of this potentially useful treatment option. Larger clinical registries and randomized clinical trials should be conducted to further explore the clinical and allograft outcomes associated with CCP use in this population.
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Affiliation(s)
- Syed Naeem
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Reginald Gohh
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - George Bayliss
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Christopher Cosgrove
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Dimitrios Farmakiotis
- Division of Infectious Diseases, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Basma Merhi
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Paul Morrissey
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Adena Osband
- Division of Renal Transplantation, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Jeffrey A Bailey
- Department of Pathology and Transfusion Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Joseph Sweeney
- Department of Pathology and Transfusion Medicine, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Ralph Rogers
- Division of Infectious Diseases, Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence, RI, USA
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Rooney M, Curley C, Sweeney J, Griffin M, Porter R, Hill E, Katz L. Prolonged oral coenzyme Q10-β-cyclodextrin supplementation increases skeletal muscle complex I+III activity in young Thoroughbreds. Journal of Applied Animal Nutrition 2020. [DOI: 10.3920/jaan2019.0001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Coenzyme Q10 (CoQ10) is an essential component of the mitochondrial electron transport chain (ETC). Decreased skeletal muscle CoQ10 content may result in decreased ETC activity and energy production. This study tested the hypotheses that supplementation with oral CoQ10 will increase plasma CoQ10 concentrations and that prolonged supplementation will increase skeletal muscle CoQ10 content in young, healthy untrained Thoroughbreds. Nineteen Thoroughbreds (27.5±9.7 months old; 11 males, eight females) from one farm and maintained on a grass pasture with one grain meal per day were supplemented daily with 1.5 mg/kg body weight of an oral CoQ10-β-cyclodextrin inclusion complex. Whole-blood and skeletal muscle biopsies were collected before (T0) and after (T1) nine weeks of supplementation. Plasma CoQ10 concentrations were determined via high-performance liquid chromatography. Skeletal muscle mitochondrial ETC combined complex I+III enzyme activity (indirect measurement of CoQ10 content) was assessed spectrophotometrically and normalised to mitochondrial abundance. Horses accepted supplementation with no adverse effects. Plasma CoQ10 concentration increased in all horses following supplementation, with mean plasma CoQ10 concentration significantly increasing from T0 to T1 (0.13±0.02 vs 0.25±0.03 μg/ml; mean difference 0.12±0.03; P=0.004). However, variability in absorbance resulted in a 58% response rate (i.e. doubling of T1 above T0 values). The mean skeletal muscle complex I+III activity significantly increased from T0 to T1 (0.36±0.04 vs 0.59±0.05 pmol/min/mg of muscle, mean difference 0.23±0.05; P=0.0004), although T1 values for three out of 19 horses decreased on average by 23% below T0 values. In conclusion, oral supplementation with CoQ10 in the diet of young, healthy untrained Thoroughbreds increased mean plasma CoQ10 concentration by 99% with prolonged daily supplementation increasing mean skeletal muscle complex I+III activity by 65%. Additional research is warranted investigating training and exercise effects on skeletal muscle CoQ10 content in CoQ10 supplemented and un-supplemented Thoroughbreds.
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Affiliation(s)
- M.F. Rooney
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, 152-160 Pearse Street, DO2R590, Ireland
| | - C.E. Curley
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, 152-160 Pearse Street, DO2R590, Ireland
| | - J. Sweeney
- RCSI Division of Population Health Sciences, RCSI, Dublin 2, Ireland
| | - M.E. Griffin
- Plusvital Ltd, The Highline, Pottery Road, Dun Laoghaire, Co. Dublin, A96 KW29, Ireland
| | - R.K. Porter
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute (TBSI), Trinity College Dublin, 152-160 Pearse Street, DO2R590, Ireland
| | - E.W. Hill
- Plusvital Ltd, The Highline, Pottery Road, Dun Laoghaire, Co. Dublin, A96 KW29, Ireland
| | - L.M. Katz
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin 4, Ireland
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Modzelewski T, Kis B, Choi J, Sweeney J, Biebel B, Parikh N, El-Haddad G, Ahmed A. Abstract No. 409 Survival and hepatic biochemical toxicities in patients treated with hepatic Yttrium-90 radioembolization for renal cell carcinoma metastases to the liver. J Vasc Interv Radiol 2020. [DOI: 10.1016/j.jvir.2019.12.470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Agasthi P, Mookadam F, Venepally NR, Wang P, Khetarpal BK, Sweeney J, Eleid M, Pollak P, Fortuin FD, Holmes DR, Arsanjani R. P339 Gradient adjusted cardiac power index does not improve prediction of survival post transcatheter aortic valve replacement compared to cardiac power index alone. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
None
Background
Cardiac Power Index (CPI) is an integrative hemodynamic measure of cardiac pumping capability and is the product of the simultaneously measured mean arterial pressure (MAP) and cardiac output (CO). In patients with aortic stenosis (AS), MAP is not reflective of mean systolic left ventricular (LV) pressure due to the transvalvular gradient. Non-invasive assessment of mean systolic LV pressure is challenging in severe aortic stenosis. CPI assessed using systemic MAP was previously shown to predict survival post transcatheter aortic valve replacement (TAVR).
Purpose
We evaluated the utility of a gradient adjusted CPI in predicting survival post TAVR compared to CPI alone
Methods
A retrospective study was performed including patients undergoing TAVR with 1 year follow-up. Baseline demographics, clinical, and echocardiographic data were abstracted from a cohort of 1,011 patients. CPI was calculated, (CO x MAP)/ (451 x BSA) Watts/m2. Gradient adjusted CPI was calculated using an augmented MAP i) adding aortic valve mean gradient(AVMG) to systolic blood pressure (CPI1); ii) adding aortic valve maximal instantaneous gradient to systolic blood pressure (CPI2) and iii) adding AVMG to MAP (CPI3). Patient survival score was calculated using a step up technique to identify the cut off value for CPI and gradient adjusted CPI to identify, where the maximum difference in mortality occurred. Multivariate cox-regression analysis was performed to adjust for baseline covariates. Receiver operator curves(ROC) for CPI and gradient adjusted CPI were calculated to predict survival post TAVR.
Results
The mortality rate at 1 yr was 16%. Mean age and AVMG of survivors was 81 +/- 9 yrs and 43 +/-14 mmHg vs 80 +/-9 yrs and 42 +/- 13 mmHg in the deceased group. Proportion of female patients was similar in both groups (p = 0.7). Patients in the deceased group at baseline had a higher prevalence of chronic lung disease, atrial fibrillation, heart failure within 2-weeks of procedure, higher STS-PROM score, lower serum albumin level, higher prevalence of moderate to severe tricuspid regurgitation, higher right ventricular systolic pressure and higher prevalence of dialysis. Both CPI and gradient adjusted CPI were independently associated with survival at 1 year. The area under ROC for CP, CP1, CP2 and CP3 were 0.67 (95% confidence interval [CI] 0.62 - 0.72), 0.65 (95% CI 0.60 – 0.70), 0.66 (95% CI 0.61 – 0.71) and 0.63 (95% CI 0.58 – 0.68) respectively.
Conclusion
Gradient adjusted CPI did not improve accuracy of predicting post TAVR survival at 1 year compared to CPI alone.
Abstract P339 Figure. Area under ROC
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Affiliation(s)
- P Agasthi
- Mayo Clinic, Phoenix, United States of America
| | - F Mookadam
- Mayo Clinic, Phoenix, United States of America
| | | | - P Wang
- Mayo Clinic, Phoenix, United States of America
| | | | - J Sweeney
- Mayo Clinic, Phoenix, United States of America
| | - M Eleid
- Mayo Clinic, Rochester, United States of America
| | - P Pollak
- Mayo Clinic, Jacksonville, United States of America
| | - F D Fortuin
- Mayo Clinic, Phoenix, United States of America
| | - D R Holmes
- Mayo Clinic, Rochester, United States of America
| | - R Arsanjani
- Mayo Clinic, Phoenix, United States of America
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Ali YM, Sweeney J, Shen P, Votanopoulos KI, McQuellon R, Duckworth K, Perry KC, Russell G, Levine EA. Effect of Cytoreductive Surgery and Hyperthermic Intraperitoneal Chemotherapy on Quality of Life in Patients with Peritoneal Mesothelioma. Ann Surg Oncol 2019; 27:117-123. [PMID: 31069554 DOI: 10.1245/s10434-019-07425-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Indexed: 01/26/2023]
Abstract
INTRODUCTION Cytoreductive surgery and hyperthermic intraperitoneal chemotherapy (HIPEC) is an accepted treatment for peritoneal mesothelioma. In this study, we evaluated QOL after HIPEC for peritoneal mesothelioma. METHODS This was a prospective study performed after HIPEC for peritoneal mesothelioma between 2002 and 2015. Patients completed QOL surveys, including the Short Form-36 (SF-36), Functional Assessment of Cancer Therapy + Colon (FACT-C), Brief Pain Inventory (BPI), and Center for Epidemiologic Studies Depression Scale (CES-D) preoperatively and at 3, 6, 12, and 24 months postoperatively. RESULTS Overall, 46 patients underwent HIPEC for peritoneal mesothelioma and completed QOL surveys. Mean age was 52.8 ± 13.8 years and 52% were male. Good preoperative functional status was 70%. Median survival was 3.4 years, and 1, 3, and 5-year survivals were 77.4, 55.2, and 36.5%, respectively. CES-D score decreased at 3 months postoperatively, but increased at 24 months (p = 0.014); SF-36 physical functioning scale decreased at 3 months but returned to baseline at 12 months (p = 0.0045); and the general health scale decreased at 3 months, then improved by 6 months (p = 0.0034). Emotional well-being (p = 0.0051), role limitations due to emotional problems (p = 0.0006), social functioning (p = 0.0022), BPI (p = 0.025), least pain (p = 0.045), and worst pain (p < 0.0001) improved. FACT-C physical well-being decreased at 3 months but returned to baseline at 6 months (p = 0.020), and total FACT-C score improved at 6 months (p = 0.052). CONCLUSION QOL returned to baseline or improved from baseline between 3 months and 1 year following surgery. Despite the risks associated with this operation, patients may tolerate HIPEC well and have good overall QOL postoperatively.
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Affiliation(s)
- Yasmin M Ali
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Joseph Sweeney
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Perry Shen
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | | | - Richard McQuellon
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Katie Duckworth
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Kathleen C Perry
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Greg Russell
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA
| | - Edward A Levine
- Surgical Oncology Service, Department of General Surgery, Wake Forest University, Winston-Salem, NC, USA.
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Roca M, Jung A, Galambo F, Sweeney J, Choi J, Biebel B, Kis B, Parikh N, Spiess P, El-Haddad G. 03:18 PM Abstract No. 85 Percutaneous radiofrequency ablation vs. cryoablation for treatment of renal tumors: a single-center experience. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Pedapati E, Mooney L, Wu S, Sweeney J, Erickson C, Gilbert D. Motor Cortex Facilitation: An inattention marker in ADHD co-occurrence in Autism Spectrum Disorder. Brain Stimul 2019. [DOI: 10.1016/j.brs.2018.12.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Rojas-Bracho L, Gulland FMD, Smith CR, Taylor B, Wells RS, Thomas PO, Bauer B, Heide-Jørgensen MP, Teilmann J, Dietz R, Balle JD, Jensen MV, Sinding MHS, Jaramillo-Legorreta A, Abel G, Read AJ, Westgate AJ, Colegrove K, Gomez F, Martz K, Rebolledo R, Ridgway S, Rowles T, van Elk CE, Boehm J, Cardenas-Hinojosa G, Constandse R, Nieto-Garcia E, Phillips W, Sabio D, Sanchez R, Sweeney J, Townsend F, Vivanco J, Vivanco JC, Walker S. A field effort to capture critically endangered vaquitas Phocoena sinus for protection from entanglement in illegal gillnets. ENDANGER SPECIES RES 2019. [DOI: 10.3354/esr00931] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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McGivney CL, Sweeney J, Gough KF, Hill EW, Katz LM. Serial evaluation of resting and exercising overground endoscopic examination results in young Thoroughbreds with no treatment intervention. Equine Vet J 2018; 51:192-197. [DOI: 10.1111/evj.12994] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Accepted: 07/09/2018] [Indexed: 11/30/2022]
Affiliation(s)
- C. L. McGivney
- UCD School of Agriculture and Food Science University College Dublin Belfield, Dublin Ireland
| | - J. Sweeney
- UCD School of Business University College Dublin Belfield, Dublin Ireland
| | - K. F. Gough
- UCD School of Agriculture and Food Science University College Dublin Belfield, Dublin Ireland
| | - E. W. Hill
- UCD School of Agriculture and Food Science University College Dublin Belfield, Dublin Ireland
| | - L. M. Katz
- UCD, School of Veterinary Medicine University College Dublin Belfield, Dublin Ireland
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Maslow A, Chambers A, Cheves T, Sweeney J. Assessment of Heparin Anticoagulation Measured Using i-STAT and Hemochron Activated Clotting Time. J Cardiothorac Vasc Anesth 2018; 32:1603-1608. [DOI: 10.1053/j.jvca.2018.01.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Indexed: 11/11/2022]
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McGivney CL, Sweeney J, Gough KF, Hill EW, Katz LM. Impact of pharyngeal endoscopic tip placement and water flushing interval on upper respiratory tract disorders in horses undergoing overground endoscopy. Equine Vet J 2018; 51:173-178. [PMID: 29981190 DOI: 10.1111/evj.12991] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 07/04/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Endoscopic tip placement in the pharynx and water flushing interval (FI) may affect exercising upper respiratory tract (URT) endoscopic results. OBJECTIVES To determine associations between the endoscopic tip position in the pharynx and automated FI with overground endoscopic (OGE) results. STUDY DESIGN Randomised balanced 2X5 factorial design. METHODS A total of n = 200 horses undergoing OGE were randomly assigned into 10 groups (n = 20/group) of different automated endoscopic FIs (no flushing, 60, 120, 180, 240 s) with the endoscope tip positioned either rostrally (position A) or caudally (position B) in the pharynx. Endoscopic videos were analysed and all URT abnormalities graded using published scales. Disorders with ≤10% prevalence were excluded from the final analysis with only arytenoid asymmetry at exercise (AAex), vocal fold collapse (VFC), palatal dysfunction (PD) and medial deviation of the aryepiglottic folds (MDAF) included. The association of endoscope position and FI with URT disorders was assessed using ordinal regression models with P≤0.05 significant. RESULTS Endoscope tip positioning was significantly associated with PD grading (P = 0.002), with 63/100 horses diagnosed with PD in position A and 45/100 in position B. No other significant direct associations between URT disease and endoscope tip position were identified, although interactions between exercise velocity and endoscope position affected MDAF grade. FI was not directly associated with alterations in disorder grading, although interactions between exercise velocity and FI appeared to affect MDAF grade. MAIN LIMITATIONS The same horse was not evaluated under each test condition potentially resulting in sample bias. Interactions between disorders were not evaluated. The sample size was insufficient to conclusively explore relationships between all factors and disorder grading. CONCLUSIONS Position of the endoscope tip within the pharynx appears to affect grading of PD during OGE examination. Exercise velocity may affect MDAF grade through interactions with endoscope position and FI.
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Affiliation(s)
- C L McGivney
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - J Sweeney
- UCD School of Business, University College Dublin, Belfield, Dublin, Ireland
| | - K F Gough
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - E W Hill
- UCD School of Agriculture and Food Science, University College Dublin, Belfield, Dublin, Ireland
| | - L M Katz
- UCD School of Veterinary Medicine, University College Dublin, Belfield, Dublin, Ireland
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Mills M, Choi J, El-Haddad G, Sweeney J, Biebel B, Robinson L, Antonia S, Kumar A, Kis B. Retrospective analysis of technical success rate and procedure-related complications of 867 percutaneous CT-guided needle biopsies of lung lesions. Clin Radiol 2017; 72:1038-1046. [DOI: 10.1016/j.crad.2017.07.023] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Revised: 07/20/2017] [Accepted: 07/31/2017] [Indexed: 01/05/2023]
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Sweeney J, Spencer PE, Vgenopoulos D, Babenko M, Boutenel F, Caton-Rose P, Coates PD. Application of activated barrier hopping theory to viscoplastic modeling of glassy polymers. Mech Time Depend Mater 2017; 22:145-165. [PMID: 29962897 PMCID: PMC6003397 DOI: 10.1007/s11043-017-9369-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 10/12/2017] [Indexed: 06/08/2023]
Abstract
An established statistical mechanical theory of amorphous polymer deformation has been incorporated as a plastic mechanism into a constitutive model and applied to a range of polymer mechanical deformations. The temperature and rate dependence of the tensile yield of PVC, as reported in early studies, has been modeled to high levels of accuracy. Tensile experiments on PET reported here are analyzed similarly and good accuracy is also achieved. The frequently observed increase in the gradient of the plot of yield stress against logarithm of strain rate is an inherent feature of the constitutive model. The form of temperature dependence of the yield that is predicted by the model is found to give an accurate representation. The constitutive model is developed in two-dimensional form and implemented as a user-defined subroutine in the finite element package ABAQUS. This analysis is applied to the tensile experiments on PET, in some of which strain is localized in the form of shear bands and necks. These deformations are modeled with partial success, though adiabatic heating of the instability causes inaccuracies for this isothermal implementation of the model. The plastic mechanism has advantages over the Eyring process, is equally tractable, and presents no particular difficulties in implementation with finite elements.
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Affiliation(s)
- J. Sweeney
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
| | - P. E. Spencer
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
| | - D. Vgenopoulos
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
| | - M. Babenko
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
| | - F. Boutenel
- Institut Clement Ader (ICA); Universite de Toulouse; CNRS, IMT Mines Albi, INSA, ISAE-SUPAERO, UPS; Campus Jarlard, F-81013 Albi, France
| | - P. Caton-Rose
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
| | - P. D. Coates
- School of Engineering, Faculty of Engineering and Informatics, University of Bradford, Bradford, BD7 1DP UK
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Brennan O, Sweeney J, O'Meara B, Widaa A, Bonnier F, Byrne HJ, O'Gorman DM, O'Brien FJ. A Natural, Calcium-Rich Marine Multi-mineral Complex Preserves Bone Structure, Composition and Strength in an Ovariectomised Rat Model of Osteoporosis. Calcif Tissue Int 2017. [PMID: 28647775 DOI: 10.1007/s00223-017-0299-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Calcium supplements are used as an aid in the prevention of osteopenia and osteoporosis and also for the treatment of patients when used along with medication. Many of these supplements are calcium carbonate based. This study compared a calcium-rich, marine multi-mineral complex (Aquamin) to calcium carbonate in an ovariectomised rat model of osteoporosis in order to assess Aquamin's efficacy in preventing the onset of bone loss. Animals were randomly assigned to either non-ovariectomy control (Control), ovariectomy (OVX) plus calcium carbonate, ovariectomy plus Aquamin or ovariectomy plus Aquamin delay where Aquamin treatment started 8 weeks post OVX. At the end of the 20-week study, the trabecular architecture was measured using micro computed tomography, bone composition was assessed using Fourier transform infrared spectroscopy and the mechanical properties were assessed using nanoindentation and three-point bend testing. The study demonstrates that oral ingestion of Aquamin results in less deterioration of trabecular bone structure, mineral composition and tissue level biomechanical properties in the tibia of rats following ovariectomy than calcium carbonate. This study has shown that in an animal model of osteoporosis, Aquamin is superior to calcium carbonate at slowing down the onset of bone loss.
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Affiliation(s)
- Orlaith Brennan
- Department of Physiology and Medical Physics, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland.
- Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland.
- Advanced Materials and BioEngineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons in Ireland, Dublin 2, Ireland.
| | - Joseph Sweeney
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Brian O'Meara
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
| | - Amro Widaa
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
| | - Franck Bonnier
- EA 6295 Nanomédicaments et Nanosondes, UFR Sciences Pharmaceutiques, Université François-Rabelais de Tours, 31 avenue Monge, 37200, Tours, France
| | - Hugh J Byrne
- FOCAS Research Institute, Dublin Institute of Technology, Kevin Street, Dublin 8, Ireland
| | - Denise M O'Gorman
- Marigot Ltd, Strand Farm, Currabinny, Carrigaline, Co. Cork, Ireland.
| | - Fergal J O'Brien
- Tissue Engineering Research Group, Royal College of Surgeons in Ireland, Dublin 2, Ireland
- Trinity Centre for Bioengineering, Trinity College Dublin, Dublin 2, Ireland
- Advanced Materials and BioEngineering Research Centre (AMBER), Trinity College Dublin and Royal College of Surgeons in Ireland, Dublin 2, Ireland
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Sorrentino S, Baber U, Chandrasekhar Y, Zhen G, Sartori S, Kovacic J, Moreno P, Barman N, Sweeney J, Vijay P, Giustino G, Dangas G, Mehran R, Kini A, Sharma S. P1389Impact of peripheral arterial disease on provision of discharge pharmacotherapy and longitudinal outcomes in patients with stable angina undergoing percutaneous coronary interventions. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Abstract
BACKGROUND Treatment of severe asthma may include high dose systemic-steroid therapy which is associated with substantial additional morbidity. This study estimates the additional healthcare costs associated with steroid-induced morbidity by comparing three patients groups: those with severe asthma, moderate asthma and no asthma. METHODS Patients with severe asthma (n = 808, GINA step 5 treatment) were matched by age and gender with patients with mild/moderate asthma (n = 3,975, GINA step 2 and 3 treatment) and a non-asthma control cohort (with a diagnosis of rhinitis; n = 2,412) from the Optimum Patient Care Research Database (OPCRD), a nationally representative primary care database. Prescribed drugs and publicly funded healthcare activity were monetised and annual costs per patient estimated. Regression analyses were used to estimate the additional healthcare cost associated with steroid-induced morbidity. RESULTS Average healthcare costs per person per year range from £2603 - £4533 for the severe asthma cohort, to £978 - £2072 for the mild/moderate asthma cohort, to £560 - £1324 for the non-asthma control cohort, depending on the costing scenario. Differences in induced morbidity costs were evident between patients with asthma differentiated by steroid exposure. In relation to prescription drugs used to treat steroid-induced co-morbidities, females with severe asthma and high steroid exposure cost approximately £789 more per year than a corresponding female with no asthma, while males cost approximately £744 more than their counterparts with no asthma. Estimates were extrapolated to all healthcare costs. CONCLUSIONS This study provides the first robust estimates of the additional cost of healthcare related to steroid-induced morbidity relative to patients with no steroid exposure. The study will help inform use of steroid-sparing strategies in this patient group.
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Affiliation(s)
- L E Barry
- National University of Ireland, Galway, Ireland.,Centre for Infection and Immunity, Queen's University of Belfast, Belfast, Northern Ireland, UK
| | - J Sweeney
- Centre for Infection and Immunity, Queen's University of Belfast, Belfast, Northern Ireland, UK
| | - C O'Neill
- National University of Ireland, Galway, Ireland.,Centre for Public Health, Queen's University Belfast, Northern Ireland, Belfast, UK
| | - D Price
- Academic Primary Care, University of Aberdeen, Scotland, UK
| | - L G Heaney
- Centre for Infection and Immunity, Queen's University of Belfast, Belfast, Northern Ireland, UK.
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McGivney CL, Sweeney J, David F, O'Leary JM, Hill EW, Katz LM. Intra- and interobserver reliability estimates for identification and grading of upper respiratory tract abnormalities recorded in horses at rest and during overground endoscopy. Equine Vet J 2016; 49:433-437. [DOI: 10.1111/evj.12653] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 11/06/2016] [Indexed: 10/20/2022]
Affiliation(s)
- C. L. McGivney
- School of Agriculture and Food Science; University College Dublin; Belfield, Dublin Ireland
| | - J. Sweeney
- School of Business; University College Dublin; Belfield, Dublin Ireland
| | - F. David
- Bjerke Dyrehospital En Rikstotoklinikk; Økern Torgv; Oslo Norway
| | - J. M. O'Leary
- School of Veterinary Medicine; University College Dublin; Belfield, Dublin Ireland
| | - E. W. Hill
- School of Agriculture and Food Science; University College Dublin; Belfield, Dublin Ireland
| | - L. M. Katz
- School of Veterinary Medicine; University College Dublin; Belfield, Dublin Ireland
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32
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Mohammadi H, Abuodeh Y, Jin W, Frakes J, Friedman M, Biebel B, Choi J, El-Haddad G, Kis B, Sweeney J, Kim R, Pimiento J, Malafa M, Anaya D, Hoffe S. Using the ALBI Grade as a Prognostic Marker for Radioembolization of Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Ioannides P, Abuodeh Y, Jin W, Hoffe S, Frakes J, Kim R, Choi J, El-Hadda G, Biebel B, Kis B, Sweeney J, Friedman M, Kothari N, Anaya D, Latifi K. Impact of Sarcopenia Evaluated Using the Total Psoas Area (TPA) in Patient Undergoing Y-90 Radioembolization for Hepatocellular Carcinoma (HCC). Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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34
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Malone C, Nester C, Madigan N, Hoffschmidt S, Zink T, Torres K, Sweeney J, O'Connor M. C-52Memory for Remote News Events and Self-Perceptions of Memory Ability. Arch Clin Neuropsychol 2016. [DOI: 10.1093/arclin/acw043.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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35
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Maslow A, Bert A, Singh A, Sweeney J. Point-of-Care Hemoglobin/Hematocrit Testing: Comparison of Methodology and Technology. J Cardiothorac Vasc Anesth 2016; 30:352-62. [DOI: 10.1053/j.jvca.2015.11.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Indexed: 01/02/2023]
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36
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Barry L, Sweeney J, O’Neill C, Patterson C, Price D, Heaney L. P158 The cost of steroid induced morbidity among severe asthma patients in the UK: Abstract P158 Table 1. Thorax 2015. [DOI: 10.1136/thoraxjnl-2015-207770.295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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37
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Hochberger W, Hill S, Nelson C, Pearlson G, Keshavan M, Tamminga C, Sweeney J, Reilly J. A-38Exploratory and Confirmatory Factor Analysis Converge on a Unitary Construct Underlying BACS Performance Across Psychotic Disorders, Their First-Degree Relatives, and Healthy Volunteers. Arch Clin Neuropsychol 2015. [DOI: 10.1093/arclin/acv047.38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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38
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Sweeney J, Laoire FO, Linehan G, Herlihy D. A Review of Potentially Inappropriate Prescribing in Over 65's in Livinghealth Clinic. Ir Med J 2015; 108:180-181. [PMID: 26182803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Polypharmacy and potentially inappropriate prescribing (PIP) are areas of growing importance and concern. Optimising drug prescribing in older people is challenging and complex at,the individual GP level. At a national level it is an important public health issue for the care and management of the ageing Irish population. The aim of this study was to estimate the prevalence of PIP in Livinghealth Clinic using the STOPP (Screening Tool for Older Persons' Prescribing) criteria and to identify areas of PIP. LHC audits demonstrated PIP levels of between 16% and 29%. Our findings were similar to other studies in that proton pump inhibitors (PPIs) at maximum therapeutic dosage for >8 weeks, and long acting benzodiazepines prescribed for > 1 month, continue to be significant areas of PIP. However, not all identified PIP maybe inappropriate. The STOPP criteria are a useful screening tool for older persons' prescribing, but are best used together with clinical assessment and discretion.
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Shah J, Choi J, El-Haddad G, Sweeney J, Biebel B, Kim R, Springett G, Malafa M, Hoffe S, Shridhar R, Kis B. Intrahepatic cholangiocarcinoma treated with transarterial yttrium-90 radioembolization - the Moffitt experience. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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40
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Kis B, Duprey R, El-Haddad G, Sweeney J, Biebel B, Kim R, Choi J. Partial splenic artery embolization in cancer patients with thrombocytopenia - the Moffitt experience. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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41
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Brice H, Farrant J, Fowler S, Holmes L, Tang J, Washbourne C, Piec I, Fraser W, Sweeney J, Heaney L, Niven R. P236 Relationship Between Bone Mineral Density And Bone Turnover Markers In Severe Asthma Patients On Systemic Corticosteroids. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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42
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Sweeney J, McHugh S, Perry IJ. Implementation and evaluation of a clinical data management programme in a primary care centre. Ir Med J 2014; 107:323-326. [PMID: 25556259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Electronic health records (EHR)support clinical management, administration, quality assurance, research, and service planning. The aim of this study was to evaluate a clinical data management programme to improve consistency, completeness and accuracy of EHR information in a large primary care centre with 10 General Practitioners (GPs). A Clinical Data Manager was appointed to implement a Data Management Strategy which involved coding consultations using ICPC-2 coding, tailored support and ongoing individualised feedback to clinicians. Over an eighteen month period there were improvements in engagement with and level of coding. Prior to implementation (August 2011) 4 of the 10 GPs engaged in regular coding and 69% of their consultation notes were coded. After 12 months, all 10 GPs and 6 nurses were ICPC-2 coding their consultations and monthly coding levels had increased to 98%. This structured Data Management Strategy provides a feasible sustainable way to improve information management in primary care.
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Affiliation(s)
- J Sweeney
- Livinghealth Clinic Primary Care Centre, Mitchelstown, Co Cork.
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Sweeney J, Bonner M, Ward I. Modelling of loading, stress relaxation and stress recovery in a shape memory polymer. J Mech Behav Biomed Mater 2014; 37:12-23. [DOI: 10.1016/j.jmbbm.2014.05.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/28/2014] [Accepted: 05/03/2014] [Indexed: 10/25/2022]
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Affiliation(s)
- Joseph Sweeney
- Department of Chemical Sciences, University of Huddersfield
| | - Duncan Gill
- Department of Chemical Sciences, University of Huddersfield
| | - Neil McLay
- Department of Chemical Sciences, University of Huddersfield
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Sweeney J, Ochocińska A, Bethel P. Catalytic Synthesis of Riboside-Amino Acid Hybrids. Synlett 2013. [DOI: 10.1055/s-0033-1339480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Joseph Sweeney
- School of Chemistry, Pharmacy and Food Science, University of Reading
| | - Agata Ochocińska
- School of Chemistry, Pharmacy and Food Science, University of Reading
| | - Paul Bethel
- Oncology Innovative Medicines Unit, AstraZeneca
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46
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Jarvis AN, McLaren AB, Osborn HMI, Sweeney J. Preparation and ring-opening reactions of N-diphenylphosphinyl vinyl aziridines. Beilstein J Org Chem 2013; 9:852-9. [PMID: 23766800 PMCID: PMC3678660 DOI: 10.3762/bjoc.9.98] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 04/07/2013] [Indexed: 01/26/2023] Open
Abstract
Predominantly (E)-N-diphenylphosphinyl vinyl aziridines are prepared by a reaction of N-diphenylphosphinyl imines with α-bromoallyllithium in the presence of freshly fused ZnCl2. These aziridines undergo a ring-opening reaction with a variety of carbon and heteronucleophiles, in good yield, and generally with good regioselectivity.
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Affiliation(s)
- Ashley N Jarvis
- Department of Chemistry, University of Reading, Reading RG6 6AD, U. K
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Robeck TR, Montano GA, Steinman KJ, Smolensky P, Sweeney J, Osborn S, O'Brien JK. Development and evaluation of deep intra-uterine artificial insemination using cryopreserved sexed spermatozoa in bottlenose dolphins (Tursiops truncatus). Anim Reprod Sci 2013; 139:168-81. [PMID: 23660366 DOI: 10.1016/j.anireprosci.2013.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 04/06/2013] [Accepted: 04/11/2013] [Indexed: 11/24/2022]
Abstract
Since its development in bottlenose dolphins, widespread application of AI with sex-selected, frozen-thawed (FT) spermatozoa has been limited by the significant expense of the sorting process. Reducing the total number of progressively motile sperm (PMS) required for an AI would reduce the sorting cost. As such, this research compared the efficacy of small-dose deep uterine AI with sexed FT spermatozoa (SEXED-SMALL; ~50×10(6)PMS, n=20), to a moderate dose deposited mid-horn (SEXED-STD, ~200×10(6)PMS; n=20), and a large dose of FT non-sexed spermatozoa deposited in the uterine body (NONSEXED-LARGE, 660×10(6)PMS, n=9). Ten of the 11 calves resulting from use of sexed spermatozoa were of the predetermined sex. Similar rates of conception (NONSEXED-LARGE: 78%, SEXED-STD: 60%, SEXED-SMALL: 57%) and total pregnancy loss (TPL: NONSEXED-LARGE: 28.6%; SEXED-STD: 41.0%; SEXED-SMALL: 63.6%) were observed across groups, but early pregnancy loss (EPL, <day 120 post-conception) was greater (P=0.04) for SEXED-SMALL (54.5%) compared to NONSEXED-LARGE (0%). Animals experiencing EPL were older (31.3 y, P=0.007) than those that calved (21.4y) or did not conceive (19.4y). After excluding females ≥25y, SEXED-SMALL (15.4%) had a tendency for having reduced calving rates compared to NONSEXED-LARGE (50.0%; P=0.08), while SEXED-STD did not differ (40.0%, 4/10; P=0.341). Current findings indicate that acceptable conception and calving rates using sexed FT spermatozoa are achieved after mid-horn deposition of 200×10(6) PMS, when used with females aged less than 25 y.
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Affiliation(s)
- Todd R Robeck
- SeaWorld and Busch Gardens Reproductive Research Center, SeaWorld Parks and Entertainment, San Diego, CA 92109, USA.
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48
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Gross I, Shander A, Sweeney J. Patient blood management and outcome, too early or not? Best Pract Res Clin Anaesthesiol 2013; 27:161-72. [DOI: 10.1016/j.bpa.2012.12.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2012] [Accepted: 12/17/2012] [Indexed: 01/01/2023]
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49
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Meehan R, Tavares M, Sweeney J. Continuing Medical Education Program in Transfusion. Transfusion 2013. [DOI: 10.1111/trf.12161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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O'Neill S, Sweeney J, Neill CO, Brightling C, Menzies-Gow A, Niven R, Chaudrai R, Bucknall C, Mansur A, Patterson C. S64 The Cost of Refractory Asthma in the UK - a Preliminary Analysis. Thorax 2012. [DOI: 10.1136/thoraxjnl-2012-202678.070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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