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Evers J, Sridhar K, Liegey J, Brady J, Jahns H, Lowery M. Stimulation-induced changes at the electrode-tissue interface and their influence on deep brain stimulation. J Neural Eng 2022; 19. [PMID: 35728575 DOI: 10.1088/1741-2552/ac7ad6] [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: 04/21/2022] [Accepted: 06/21/2022] [Indexed: 11/12/2022]
Abstract
OBJECTIVE During deep brain stimulation (DBS) the electrode-tissue interface forms a critical path between device and brain tissue. Although changes in the electrical double layer and glial scar can impact stimulation efficacy, the effects of chronic DBS on the electrode-tissue interface have not yet been established. APPROACH In this study, we characterised the electrode-tissue interface surrounding chronically implanted DBS electrodes in rats and compared the impedance and histological properties at the electrode interface in animals that received daily stimulation and in those where no stimulation was applied, up to eight weeks post-surgery. A computational model was developed based on the experimental data, which allowed the dispersive electrical properties of the surrounding encapsulation tissue to be estimated. The model was then used to study the effect of stimulation-induced changes in the electrode-tissue interface on the electric field and neural activation during voltage- and current-controlled stimulation. MAIN RESULTS Incorporating the observed changes in simulations in silico, we estimated the frequency-dependent dielectric properties of the electrical double layer and surrounding encapsulation tissue. Through simulations we show how stimulation-induced changes in the properties of the electrode-tissue interface influence the electric field and alter neural activation during voltage-controlled stimulation. A substantial increase in the number of stimulated collaterals, and their distance from the electrode, was observed during voltage-controlled stimulation with stimulated ETI properties. In vitro examination of stimulated electrodes confirmed that high frequency stimulation leads to desorption of proteins at the electrode interface, with a concomitant reduction in impedance. SIGNIFICANCE The demonstration of stimulation-induced changes in the electrode-tissue interface has important implications for future DBS systems including closed-loop systems where the applied stimulation may change over time. Understanding these changes is particularly important for systems incorporating simultaneous stimulation and sensing, which interact dynamically with brain networks.
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Affiliation(s)
- J Evers
- School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, UCD Belfield, Dublin, Dublin, 4, IRELAND
| | - K Sridhar
- School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, UCD Belfield, Dublin, Dublin, 4, IRELAND
| | - J Liegey
- School of Electrical and Electronic Engineering, University College Dublin, Engineering Building, UCD Belfield, Dublin, Dublin, 4, IRELAND
| | - J Brady
- School of Veterinary Medicine, University College Dublin, Veterinary Science Center, Dublin, 4, IRELAND
| | - H Jahns
- School of Veterinary Medicine, University College Dublin, Veterinary Science Center, Dublin, 4, IRELAND
| | - M Lowery
- School of Electrical, Electronic & Mechancial Engineering, University College Dublin, Engineering & Materials Science Centre, Belfield, Dublin 4, Dublin, 4, IRELAND
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Goffe K, Wilson J, Gluck T, Brady J, Burns A, Bergbaum C, Petra H, Stewart M, Wilson E. 779 IMPROVING USE OF COORDINATE MY CARE USING A QUALITY IMPROVEMENT APPROACH FOR MEDICAL PATIENTS ADMITTED TO BARNET HOSPITAL. Age Ageing 2022. [DOI: 10.1093/ageing/afac034.779] [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] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Introduction
Coordinate My Care (CMC) is a digital care plan for communicating person-centred urgent and advance care planning. We recognised that it was not being consistently accessed on admission, nor updated on discharge, leading to a risk of ignoring patient wishes and previously clinician-agreed care plans. We used a quality improvement approach to increase use of CMC.
Method
We gathered baseline data on the number of users utilising their account, and explored current practice and barriers. A driver diagram was developed, a Steering Group met regularly, and interventions were tested using Plan, Do, Study, Act. Interventions began in January 2021, including electronic circulation of a guide to gain access to CMC, posters about CMC, departmental teaching, and drop-in training. A Core Group of clinicians repeatedly surveyed 12 medical ward areas and offered on-the-spot troubleshooting. To mitigate effects of staff turnover, we developed e-classroom training for new starters.
Results
53 people attended departmental teaching and drop-ins. The number of users utilising their account each month showed a steady increase, rising from 25 to 42 users. Monthly views of CMC records are increasing, with 167 in May 2021 compared to an average of 105 in the 5 months prior to the project. We have still to examine patient feedback.
Conclusion
Use of CMC is becoming more established. Future actions will concentrate on training (including in the emergency department and during junior doctor changeover), helping clinicians hold conversations, and establishing mentoring. Recording Advance Care Planning on CMC is a final step in a complex process of identifying that a patient may be in the last year of their life, starting conversations and taking actions. It follows that varied and sustained actions are needed to improve this, in order to realise the benefits of person-centred planning for our patients and those caring for them.
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Affiliation(s)
- K Goffe
- Barnet Hospital, Royal Free London NHS Trust
| | - J Wilson
- Barnet Hospital, Royal Free London NHS Trust
| | - T Gluck
- Barnet Hospital, Royal Free London NHS Trust
| | - J Brady
- Barnet Hospital, Royal Free London NHS Trust
| | - A Burns
- Barnet Hospital, Royal Free London NHS Trust
| | - C Bergbaum
- Barnet Hospital, Royal Free London NHS Trust
| | - H Petra
- Barnet Hospital, Royal Free London NHS Trust
| | - M Stewart
- Barnet Hospital, Royal Free London NHS Trust
| | - E Wilson
- Barnet Hospital, Royal Free London NHS Trust
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Vasiliadou I, Mikhaeel G, Brady J, Poetter V, Benjamin R, Patten P, Cuadrado M, Evans R, Alexander E, Gillham C, Summers J, Ajithkumar T, Bates A, Kuhnl A, Sanderson R. Factors Affecting Outcome of Bridging Radiotherapy (RT) Before CAR-T for High Grade Lymphoma. Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.962] [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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Tran K, Tsang R, Suh C, Yoon H, Taguchi S, Oguchi M, Gunther J, Dabaja B, Wright C, Plastaras J, Elsayad K, Ng A, Binkley M, Brady J, Wang X, Levis M, Harris M, Bressel M, MacManus M, Wirth A. An International, Multi-Centre Study of Radiotherapy for Bilateral Indolent Orbital Adnexal Lymphomas (IOAL). Int J Radiat Oncol Biol Phys 2021. [DOI: 10.1016/j.ijrobp.2021.07.242] [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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5
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Gunther J, Yang J, Hajj C, Ng A, Brady J, Cheng S, Levis M, Qi S, Mikhaeel G, Ricardi U, Illidge T, Turin A, Knafl M, Specht L, Dabaja B, Yahalom J. Efficacy and Toxicity of Alternative Radiation Treatment Schemes for Patients With Hematologic Malignancies: A Collaborative ILROG COVID Era Report. Int J Radiat Oncol Biol Phys 2021. [PMCID: PMC8536223 DOI: 10.1016/j.ijrobp.2021.07.961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Purpose/Objective(s) The COVID19 pandemic required radiation oncologists (ROs) to consider shorter treatment courses to minimize patient and staff exposure and conserve healthcare resources. Hematologic ROs adopted hypofractionated radiation therapy (hRT) regimens according to guidelines published by the International Lymphoma Radiation Oncology Group (ILROG). We report for the first time the preliminary efficacy and toxicity of these novel hypofractionated regimens in the treatment of hematologic malignancies. Materials/Methods We conducted a multicenter, multinational retrospective study under the direction of the ILROG. All patients receiving hRT according to ILROG guidelines from 1/1/2020 to 8/31/2020 were included. Patient and treatment details were abstracted from separate institutional databases. Toxicity was graded using CTCAE v5.0. Results Ninety-three patients from 4 institutions treated with 114 RT courses were included. Patient and treatment details are displayed in Table 1. Median follow up for the cohort was 179 days, and 77 patients (82%) were alive at last follow up. Maximal toxicity experienced by patients included Grade 1 (n = 16), Grade 2 (n = 1) and Grade 3 (n = 1) toxicities. Of 80 sites with response assessment within the RT field, 69% of patients achieved a complete response (n = 55), 20% partial response (n = 16), 9% stable disease (n = 7), and 2% progressive disease (n = 2). No COVID19 infections during or after RT have been documented in this patient cohort. Conclusion HRT according to ILROG guidelines resulted in low rates of acute toxicity and reasonable short-term treatment efficacy. Longer follow up and comparison with control groups is needed to draw more definitive conclusions and will be presented at the Annual Meeting.
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Brady J, Vasiliadou I, Potter V, Benjamin R, Patten P, Cuadrado M, Evans O, Alexander E, Gillham C, Summers J, Ajithkumar T, Bates A, Sanderson R, Kuhnl A, Mikhaeel N. PH-0329 Feasibility and outcome of bridging RT pre CAR-T in DLBCL in one centre with a wide referral network. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)07302-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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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Jones K, Webster A, Ntentas G, Brady J, Mikhaeel N. PO-1972 DIBH for mediastinal lymphoma: Implementation and evaluation of a 5-year service. Radiother Oncol 2021. [DOI: 10.1016/s0167-8140(21)08423-1] [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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Hafez O, Brady J, Attallah H, Mikhaeel N. OC-0458: Local tumour control after mediastinal radiotherapy with DIBH and small CTV-PTV margin. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00480-1] [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: 10/22/2022]
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9
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Shelley C, Brady J, Rahman F, Mikhaeel G. PO-0919: Low vs intermediate dose radiotherapy in head & neck MALT lymphoma with and without Sjogren syndrome. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00936-1] [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: 10/22/2022]
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10
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Maurouard T, Shivakumar R, Brady J. Advancing cellular therapies using clinically scalable engineering of T Cells and NK cells. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.390] [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]
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11
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Motov S, Butt M, Masoudi A, Hossain R, Drapkin J, Likourezos A, Fassassi C, Brady J, Rothberger N, Flom P, Marshall J. 257 Comparison of Analgesic Efficacy of Morphine Sulfate Immediate Release/Acetaminophen vs. Oxycodone/Acetaminophen (Percocet) for Acute Pain in Emergency Department Patients. Ann Emerg Med 2019. [DOI: 10.1016/j.annemergmed.2019.08.215] [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: 11/28/2022]
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12
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Barber J, Mikhaeel G, Brady J, Mistry A. An Investigation of the Possible Advantages of Treating Lymphoma Stomach Patients in DIBH or EEBH to Reduce Heart Dose. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1463] [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: 11/16/2022]
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13
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Brady J, Mikhaeel G. Is Radiotherapy Adequate Treatment for Patients not in Complete Metabolic Response after First-Line Chemotherapy for DLBCL? Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.518] [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: 10/26/2022]
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14
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Owen L, Pleming J, Lisk C, Brady J, Benafif A, Lewis A, Bertfield D, Mani S. 22‘THE FRAILTY JOURNEY – FROM EARLY RECOGNITION TO END OF LIFE’: AN INNOVATIVE MULTIDISCIPLINARY LEARNING EVENT. Age Ageing 2019. [DOI: 10.1093/ageing/afz055.22] [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: 11/13/2022] Open
Affiliation(s)
- L Owen
- Geriatrics Department, Barnet Hospital
| | - J Pleming
- Geriatrics Department, Barnet Hospital
| | - C Lisk
- Geriatrics Department, Barnet Hospital
| | - J Brady
- Geriatrics Department, Barnet Hospital
| | - A Benafif
- Geriatrics Department, Barnet Hospital
| | - A Lewis
- Geriatrics Department, Barnet Hospital
| | | | - S Mani
- Geriatrics Department, Barnet Hospital
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Noble M, Brady J. Response Rates to Newly Implemented Neoadjuvant TCHP Chemotherapy in the Dorset Cancer Network. Clin Oncol (R Coll Radiol) 2019. [DOI: 10.1016/j.clon.2019.03.030] [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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16
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Binkley M, Rauf M, Milgrom S, Pinnix C, Tsang R, Ng A, Roberts K, Gao S, Ricardi U, Levis M, Casulo C, Stolten M, Kelsey C, Brady J, Mikhaeel N, Hoppe B, Terezakis S, Kirova Y, Akhtar S, Maghfoor I, Koenig J, Jackson C, Song E, Segal S, Advani R, Natkunam Y, Constine L, Eich H, Wirth A, Hoppe R. STAGE I-II NODULAR LYMPHOCYTE-PREDOMINANT HODGKIN LYMPHOMA IN THE MODERN ERA: A MULTI-INSTITUTIONAL EXPERIENCE OF ADULT PATIENTS BY ILROG. Hematol Oncol 2019. [DOI: 10.1002/hon.103_2629] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- M.S. Binkley
- Radiation Oncology; Stanford University School of Medicine; Stanford United States
| | - M. Rauf
- Medical Oncology; King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
| | - S.A. Milgrom
- Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston United States
| | - C.C. Pinnix
- Radiation Oncology; University of Texas MD Anderson Cancer Center; Houston United States
| | - R. Tsang
- Radiation Oncology; Princess Margaret Cancer Center; Toronto Canada
| | - A. Ng
- Radiation Oncology; Dana Farber and Harvard University School of Medicine; Boston United States
| | - K.B. Roberts
- Radiation Oncology; Yale University; New Haven United States
| | - S. Gao
- Radiation Oncology; Yale University; New Haven United States
| | - U. Ricardi
- Oncology; University of Turin; Torino Italy
| | - M. Levis
- Oncology; University of Turin; Torino Italy
| | - C. Casulo
- Medical Oncology; University of Rochester; Rochester United States
| | - M. Stolten
- Radiation Oncology; University of Rochester; Rochester United States
| | - C.R. Kelsey
- Radiation Oncology; Duke University School of Medicine; Durham United States
| | - J.L. Brady
- Radiation Oncology; Guy's Cancer Centre, Guy's and St Thomas’ NHS Hospital; London United Kingdom
| | - N. Mikhaeel
- Radiation Oncology; Guy's Cancer Centre, Guy's and St Thomas’ NHS Hospital; London United Kingdom
| | - B.S. Hoppe
- Radiation Oncology; University of Florida; Jacksonville United States
| | - S.A. Terezakis
- Radiation Oncology; The Johns Hopkins University School of Medicine; Baltimore United States
| | - Y. Kirova
- Radiation Oncology; Institut Curie; Paris France
| | - S. Akhtar
- Medical Oncology; King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
| | - I. Maghfoor
- Medical Oncology; King Faisal Specialist Hospital and Research Centre; Riyadh Saudi Arabia
| | - J.L. Koenig
- Radiation Oncology; Stanford University School of Medicine; Stanford United States
| | - C. Jackson
- Radiation Oncology; Yale University; New Haven United States
| | - E. Song
- Radiation Oncology; Duke University School of Medicine; Durham United States
| | - S. Segal
- Radiation Oncology; The Johns Hopkins University School of Medicine; Baltimore United States
| | - R.H. Advani
- Medical Oncology; Stanford University School of Medicine; Stanford United States
| | - Y. Natkunam
- Pathology; Stanford University School of Medicine; Stanford United States
| | - L.S. Constine
- Radiation Oncology; University of Rochester; Rochester United States
| | - H. Eich
- Radiation Oncology; Munster University; Munster Germany
| | - A. Wirth
- Radiation Oncology; Peter MacCallum Cancer Centre; Melbourne Australia
| | - R.T. Hoppe
- Radiation Oncology; Stanford University School of Medicine; Stanford United States
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Ronald J, Nixon A, Hatch A, Brady J, Campa M, Devos N, Corcoran D, Hurwitz H, Martin J, Kim C. 04:03 PM Abstract No. 323 Transcatheter arterial embolization increases circulating cell-free DNA in patients with hepatocellular carcinoma. J Vasc Interv Radiol 2019. [DOI: 10.1016/j.jvir.2018.12.391] [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: 11/25/2022] Open
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18
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Brady J, Stewart W, Whitney T, Scholljegerdes E, Yeoman C, Waldron D, Musser J, Adams R, Walker J. PSXI-10 Rumen microbial characteristics of goats selectively bred to have greater consumption of Juniperus pinchotii forage. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.789] [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: 11/13/2022] Open
Affiliation(s)
- J Brady
- Texas A&M AgriLife Research,Stephenville, TX, United States
| | - W Stewart
- Univ. of WY, Dept. of Anim. Sci.,Laramie, United States
| | - T Whitney
- Texas A&M AgriLife Research, San Angelo, TX, United States
| | - E Scholljegerdes
- NM State Univ., Dept. Animal and Range Sci., Las Cruces, NM, United States
| | - C Yeoman
- MT State Univ., Dept Anim. and Range Sci.,Bozeman, MT, United States
| | - D Waldron
- Texas A&M AgriLife Research, San Angelo, TX, United States
| | - J Musser
- Texas A&M University, College of Vet. Medicine and Biomedical Sci.,College Station, TX, United States
| | - R Adams
- Baylor Univ.,Hurricane, UT, United States
| | - J Walker
- Texas A&M AgriLife Research, San Angelo, TX, United States
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Binkley M, Brady J, Mikhaeel G, Hoppe R. Definitive and Immediate Salvage Treatment Achieves Durable Response for Relapse Following Primary RT for Follicular Lymphoma: An International Collaborative Study on Behalf of ILROG. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.305] [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]
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20
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Drapkin J, Motov S, Likourezos A, Monfort R, Butt M, Hossain R, Gulati V, Brady J, Mann S, Rothberger N, Marshall J. 1 A Randomized Trial Comparing the Combination of Intravenous Lidocaine and Ketorolac to Either Analgesics Alone for Emergency Department Patients With Acute Renal Colic. Ann Emerg Med 2018. [DOI: 10.1016/j.annemergmed.2018.08.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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Abstract
Aims Little is known about the effect of haemorrhagic shock and resuscitation
on fracture healing. This study used a rabbit model with a femoral
osteotomy and fixation to examine this relationship. Materials and Methods A total of 18 male New Zealand white rabbits underwent femoral
osteotomy with intramedullary fixation with ‘shock’ (n = 9) and
control (n = 9) groups. Shock was induced in the study group by
removal of 35% of the total blood volume 45 minutes before resuscitation
with blood and crystalloid. Fracture healing was monitored for eight weeks
using serum markers of healing and radiographs. Results Four animals were excluded due to postoperative complications.
The serum concentration of osteocalcin was significantly elevated
in the shock group postoperatively (p < 0.0001). There were otherwise
no differences with regard to serum markers of bone healing. The
callus index was consistently increased in the shock group on anteroposterior
(p = 0.0069) and lateral (p = 0.0165) radiographs from three weeks
postoperatively. The control group showed an earlier decrease of
callus index. Radiographic scores were significantly greater in
the control group (p = 0.0025). Conclusion In a rabbit femoral osteotomy model with intramedullary fixation,
haemorrhagic shock and resuscitation produced larger callus but
with evidence of delayed remodelling. Cite this article: Bone Joint J 2018;100-B:1234–40.
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Affiliation(s)
- J Brady
- Lismore Base Hospital, Lismore, Australia
| | - B M Hardy
- John Hunter Hospital, New Lambton Heights, Australia
| | - O Yoshino
- Austin Hospital, Melbourne, Australia
| | - A Buxton
- University of Newcastle, Newcastle, Australia
| | - A Quail
- School of Medicine and Public Health, University of Newcastle, Australia
| | - Z J Balogh
- University of Newcastle, Newcastle, Australia and Orthopaedic Surgeon, John Hunter Hospital, New Lambton Heights, Australia
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Stotz MK, Smith BW, Herrygers K, Bidwell C, Brady J, Waddell J. 147 Calpastatin Isoforms Related to Meat Tenderness in Beef Cattle. J Anim Sci 2018. [DOI: 10.1093/jas/sky027.147] [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: 11/12/2022] Open
Affiliation(s)
- M K Stotz
- Tarleton State University, Stephneville, TX
| | - B W Smith
- Tarleton State University, Stephenville, TX
| | | | | | - J Brady
- Texas A&M University, College Station, TX
| | - J Waddell
- Tarleton State University, Stephenville, TX
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Yoshino O, Brady J, Young K, Hardy B, Matthys R, Buxton T, Appleyard R, Tomka J, Dabirrahmani D, Woodford P, Fadia M, Steck R, Quail A, Richards RG, Balogh ZJ. Reamed locked intramedullary nailing for studying femur fracture and its complications. Eur Cell Mater 2017; 34:99-107. [PMID: 28891043 DOI: 10.22203/ecm.v034a07] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 01/31/2023] Open
Abstract
Morbidity associated with femur fractures in polytrauma patients is known to be high. The many unsolved clinical questions include the immunological effect of the fracture and its fixation, timing of fracture fixation, management of fracture non-union, effect of infection and critical size of bone defects. The aim of this study was to establish a clinically-relevant and reproducible animal model with regards to histological, biomechanical and radiological changes during bone healing. A custom-designed intramedullary nail with interlocking system (RabbitNail, RISystem AG, Davos Platz, Switzerland) was used for fixation, following femur fracture. New Zealand White rabbits were assigned to two groups: 1. closed fracture model (CF; non-survival model: n = 6, survival model: n = 3) with unilateral mid-shaft femur fracture created by blunt force; 2. osteotomy model (OT; survival model: n = 14) with unilateral transverse osteotomy creating femur fracture. There were no intraoperative complications and full-weight bearing was achieved in all survival rabbits. Significant periosteal reaction and callus formation were confirmed from 2 weeks postoperatively, with a significant volume formation (739.59 ± 62.14 mm3) at 8 weeks confirmed by micro-computed tomography (µ-CT). 2 months after fixation, there was no difference between the osteotomised and contralateral control femora in respect to the maximum torque (3.47 ± 0.35 N m vs. 3.26 ± 0.37 N m) and total energy (21.11 ± 3.09 N m × degree vs. 20.89 ± 2.63 N m × degree) required to break the femur. The data confirmed that a standardised internal fixation technique with an intramedullary nail for closed fracture or osteotomy produced satisfactory bone healing. It was concluded that important clinically-relevant studies can be conducted using this rabbit model.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Z J Balogh
- Department of Traumatology, University of Newcastle and John Hunter Hospital, 2310 Newcastle, NSW,
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Brady J, O’Loughlin K. AUSTRALIAN LIVES ALTERED BY PARKINSON’S DISEASE: WORK, RETIREMENT, AND CARE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1171] [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: 11/14/2022] Open
Affiliation(s)
- J. Brady
- Faculty of Health Sciences, University of Sydney, Cremorne, New South Wales, Australia
| | - K. O’Loughlin
- Faculty of Health Sciences, University of Sydney, Cremorne, New South Wales, Australia
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Brady J, Binkley M, Hajj C, Chelius M, Chau K, Levis M, Choi S, Suh C, Hardy S, Constine L, Krog Vistisen A, Bratman S, Reinartz G, Eich H, Oguchi M, Kirova Y, Ng A, Warbey V, Barrington S, El-Galaly T, Filippi A, Ricardi U, Yahalom J, Hoppe R, Mikhaeel N. OUTCOME OF CURATIVE RADIOTHERAPY FOR LOCALISED FOLLICULAR LYMPHOMA IN THE ERA OF 18
F-FDG PET-CT STAGING: AN INTERNATIONAL COLLABORATIVE STUDY ON BEHALF OF ILROG. Hematol Oncol 2017. [DOI: 10.1002/hon.2437_10] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- J.L. Brady
- Department of Clinical Oncology; Guy's and St Thomas' Hospital; London UK
| | - M.S. Binkley
- Department of Radiation Oncology; Stanford Cancer Institute and Stanford University School of Medicine; Stanford USA
| | - C. Hajj
- Department of Radiation Oncology; Memorial Sloan Kettering Cancer Center; New York USA
| | - M.R. Chelius
- Department of Radiation Oncology; Memorial Sloan Kettering Cancer Center; New York USA
| | - K.W. Chau
- Department of Radiation Oncology; Memorial Sloan Kettering Cancer Center; New York USA
| | - M. Levis
- Department of Oncology; University of Torino; Torino Italy
| | - S. Choi
- Department of Radiation Oncology; Yonsei University College of Medicine; Seoul Republic of Korea
| | - C. Suh
- Department of Radiation Oncology; Yonsei University College of Medicine; Seoul Republic of Korea
| | - S.J. Hardy
- Department of Radiation Oncology; University of Rochester Medical Center; Rochester USA
| | - L.S. Constine
- Department of Radiation Oncology; University of Rochester Medical Center; Rochester USA
| | - A. Krog Vistisen
- Department of Haematology; Aalborg University Hospital; Aalborg Denmark
| | - S.V. Bratman
- Department of Radiation Oncology; Princess Margaret Cancer Center and University of Toronto; Toronto Canada
| | - G. Reinartz
- Department of Radiotherapy; University Hospital Muenster; Muenster Germany
| | - H.T. Eich
- Department of Radiotherapy; University Hospital Muenster; Muenster Germany
| | - M. Oguchi
- Department of Radiation Oncology; Cancer Institute Hospital of Japanese Foundation for Cancer Research; Tokyo Japan
| | - Y.M. Kirova
- Department of Radiation Oncology; Institut Curie; Paris France
| | - A.K. Ng
- Department of Radiation Oncology, Dana-Farber Cancer Institute; Harvard Medical School; Boston USA
| | - V.S. Warbey
- PET Imaging Centre at St Thomas' Hospital; King's College London; London UK
| | - S.F. Barrington
- PET Imaging Centre at St Thomas' Hospital; King's College London; London UK
| | - T.C. El-Galaly
- Department of Haematology; Aalborg University Hospital; Aalborg Denmark
| | - A.R. Filippi
- Department of Oncology; University of Torino; Torino Italy
| | - U. Ricardi
- Department of Oncology; University of Torino; Torino Italy
| | - J. Yahalom
- Department of Radiation Oncology; Memorial Sloan Kettering Cancer Center; New York USA
| | - R.T. Hoppe
- Department of Radiation Oncology; Stanford Cancer Institute and Stanford University School of Medicine; Stanford USA
| | - N.G. Mikhaeel
- Department of Clinical Oncology; Guy's and St Thomas' Hospital and King's Health Partners Academic Health Sciences Centre; London UK
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Craig J, Broghammer J, Kaufman M, Milam D, Cleves M, McClung C, Brady J, Jones L, Gross M, Henry G, Brant W. 011 Outcomes after AUS Replacement due to Cuff Erosion: Results from a Multicenter Retrospective Analysis. J Sex Med 2017. [DOI: 10.1016/j.jsxm.2016.12.024] [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: 11/28/2022]
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Nikolic MZ, Johnson JA, Sun D, Caritg O, Laresgoiti U, Brady J, Allen G, Giangreco A, Rawlins EL. T5 Towards human lung regeneration in end-stage respiratory failure: genetically-modifiable 3d organoid culture of human embryonic lung stem cells enables for the first time the study of human lung development in vitro. Thorax 2016. [DOI: 10.1136/thoraxjnl-2016-209333.5] [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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Brady J, Costantini C, Sagnon N, Gibson G, Coluzzi M. The role of body odours in the relative attractiveness of different men to malarial vectors in Burkina Faso. Annals of Tropical Medicine & Parasitology 2016. [DOI: 10.1080/00034983.1997.11813252] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Brady J, Begum R, Hartill C, Greener A, Mikhaeel N. Analysis of Factors Affecting Benefit from Deep Inspiration Breath Hold Technique in Mediastinal Radiation Therapy for Lymphoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1861] [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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Rahman F, Brady J, Galli S, Mikhaeel N. PO-0668: Outcome of low and intermediate dose radiotherapy in head and neck MALT lymphoma. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31918-1] [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: 10/21/2022]
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31
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Brady J, Barrington S, Warbey V, Mikhaeel N. PO-0664: Outcome of radiotherapy for stage I and II follicular lymphoma in patients staged by 18 FDG PET-CT. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31914-4] [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: 11/28/2022]
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Brady J, Begum R, Hartill C, Greener A, Mikhaeel N. EP-1739: Deep inspiration breath hold with 'AlignRT' in 3D conformal mediastinal radiotherapy for lymphoma. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)32990-5] [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: 11/27/2022]
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Brady J, Attallah H, Mikhaeel N. PO-0670: Efficacy of low dose radiotherapy in relapsed or refractory. Radiother Oncol 2016. [DOI: 10.1016/s0167-8140(16)31920-x] [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: 11/25/2022]
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French J, Purificacion S, Brown E, MacDonald R, Wilson L, Kumar E, Bird L, Brady J, Milosevic M, Mitera G. Each Cancer Journey Begins With One Shared Step: Patient Engagement and Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1831] [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: 10/22/2022]
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Hawthorne W, Hawkes J, Salvaris E, Liuwantara D, Barlow H, Phillips P, Robson S, Brady J, Lew A, Mark N, OʼConnell P, Cowan P. Survival of Genetically Modified Porcine Neonatal Islet Xenografts in Baboons. Transplantation 2014. [DOI: 10.1097/00007890-201407151-01368] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Holzinger D, Lohse P, Faßl S, Austermann J, Vogl T, de Jager W, Holland S, Gattorno M, Rodriguez-Gallego C, Arostegui J, Fessatou S, Isidor B, Ito K, Epple HJ, Bernstein J, Jeng M, Lionetti G, Ong P, Hinze C, Sampson B, Sunderkoetter C, Foell D, Chae J, Ombrello A, Brady J, Aksentijevich I, Roth J. PW02-018 - Impact of PSTPIP1 mutaions on clinical phenotype. Pediatr Rheumatol Online J 2013. [PMCID: PMC3953041 DOI: 10.1186/1546-0096-11-s1-a158] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
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Kieran M, O’Sullivan D, Brady J, McQuaid S, Meegan C. DGI-025 Development of a Protocol For the Treatment of Vitamin D Deficiency/Insufficiency in Adults. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.291] [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] Open
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Kieran M, Gavin C, O’Shea L, Brady J, Meegan C. DGI-002 Adrenal Insufficiency Induced by a Chinese Herbal Medicine. Eur J Hosp Pharm 2013. [DOI: 10.1136/ejhpharm-2013-000276.268] [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] Open
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Murphy TM, Mullins N, Ryan M, Foster T, Kelly C, McClelland R, O'Grady J, Corcoran E, Brady J, Reilly M, Jeffers A, Brown K, Maher A, Bannan N, Casement A, Lynch D, Bolger S, Buckley A, Quinlivan L, Daly L, Kelleher C, Malone KM. Genetic variation in DNMT3B and increased global DNA methylation is associated with suicide attempts in psychiatric patients. Genes Brain Behav 2013; 12:125-32. [PMID: 23025623 DOI: 10.1111/j.1601-183x.2012.00865.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Revised: 08/17/2012] [Accepted: 09/27/2012] [Indexed: 11/28/2022]
Abstract
Recently, a significant epigenetic component in the pathology of suicide has been realized. Here we investigate candidate functional SNPs in epigenetic-regulatory genes, DNMT1 and DNMT3B, for association with suicide attempt (SA) among patients with co-existing psychiatric illness. In addition, global DNA methylation levels [5-methyl cytosine (5-mC%)] between SA and psychiatric controls were quantified using the Methylflash Methylated DNA Quantification Kit. DNA was obtained from blood of 79 suicide attempters and 80 non-attempters, assessed for DSM-IV Axis I disorders. Functional SNPs were selected for each gene (DNMT1; n = 7, DNMT3B; n = 10), and genotyped. A SNP (rs2424932) residing in the 3' UTR of the DNMT3B gene was associated with SA compared with a non-attempter control group (P = 0.001; Chi-squared test, Bonferroni adjusted P value = 0.02). Moreover, haplotype analysis identified a DNMT3B haplotype which differed between cases and controls, however this association did not hold after Bonferroni correction (P = 0.01, Bonferroni adjusted P value = 0.56). Global methylation analysis showed that psychiatric patients with a history of SA had significantly higher levels of global DNA methylation compared with controls (P = 0.018, Student's t-test). In conclusion, this is the first report investigating polymorphisms in DNMT genes and global DNA methylation quantification in SA risk. Preliminary findings suggest that allelic variability in DNMT3B may be relevant to the underlying diathesis for suicidal acts and our findings support the hypothesis that aberrant DNA methylation profiles may contribute to the biology of suicidal acts. Thus, analysis of global DNA hypermethylation in blood may represent a biomarker for increased SA risk in psychiatric patients.
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Affiliation(s)
- T M Murphy
- Department of Psychiatry and Mental Health Research & Education and Research Centre, St Vincent's University Hospital, and School of Medicine & Medical Science, University College Dublin, Dublin 4, Ireland
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Rodríguez-Lecompte JC, Yitbarek A, Brady J, Sharif S, Cavanagh MD, Crow G, Guenter W, House JD, Camelo-Jaimes G. The effect of microbial-nutrient interaction on the immune system of young chicks after early probiotic and organic acid administration1. J Anim Sci 2012; 90:2246-54. [DOI: 10.2527/jas.2011-4184] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - A. Yitbarek
- Department of Animal Science, University of Manitoba, Winnipeg R3T 2N2, Canada
| | - J. Brady
- Department of Animal Science, University of Manitoba, Winnipeg R3T 2N2, Canada
| | - S. Sharif
- Department of Pathobiology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - M. D. Cavanagh
- Department of Animal Science, University of Manitoba, Winnipeg R3T 2N2, Canada
| | - G. Crow
- Department of Animal Science, University of Manitoba, Winnipeg R3T 2N2, Canada
| | - W. Guenter
- Department of Animal Science, University of Manitoba, Winnipeg R3T 2N2, Canada
| | - J. D. House
- Department of Human Nutritional Science, University of Manitoba, Winnipeg R3T 2N2, Canada
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Yitbarek A, Echeverry H, Brady J, Hernandez-Doria J, Camelo-Jaimes G, Sharif S, Guenter W, House J, Rodriguez-Lecompte J. Innate immune response to yeast-derived carbohydrates in broiler chickens fed organic diets and challenged with Clostridium perfringens. Poult Sci 2012; 91:1105-12. [DOI: 10.3382/ps.2011-02109] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Ratkevicius A, Joyson A, Selmer I, Dhanani T, Grierson C, Tommasi AM, DeVries A, Rauchhaus P, Crowther D, Alesci S, Yaworsky P, Gilbert F, Redpath TW, Brady J, Fearon KCH, Reid DM, Greig CA, Wackerhage H. Serum Concentrations of Myostatin and Myostatin-Interacting Proteins Do Not Differ Between Young and Sarcopenic Elderly Men. J Gerontol A Biol Sci Med Sci 2011; 66:620-6. [DOI: 10.1093/gerona/glr025] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
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Lonergan R, Kinsella K, Fitzpatrick P, Brady J, Murray B, Dunne C, Hagan R, Duggan M, Jordan S, McKenna M, Hutchinson M, Tubridy N. Multiple sclerosis prevalence in Ireland: relationship to vitamin D status and HLA genotype. J Neurol Neurosurg Psychiatry 2011; 82:317-22. [PMID: 21248317 DOI: 10.1136/jnnp.2010.220988] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [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: 11/03/2022]
Abstract
BACKGROUND The relationship between prevalence of multiple sclerosis (MS) and latitude may be due to both genetic and environmental factors. The hypothesis that, in Ireland, MS prevalence is increasing and that north-south differences relate to variation in serum 25-hydroxyvitamin D (25(OH)D) levels was tested in this study. PATIENTS AND METHODS Patients and matched control subjects were identified in counties Donegal, Wexford and South Dublin through multiple sources. Prevalence was determined. Blood samples were taken for serum 25(OH)D and serum intact parathyroid hormone measurement, and DNA was extracted. RESULTS Prevalence in 2007 was significantly greater in Donegal (northwest) (290.3/105, 95% CI 262.3 to 321.7) compared with 2001 (184.6/105; 162 to 209.5). In Wexford (southeast), there was a non-significant increase in prevalence in 2007 compared with 2001. Prevalence was significantly higher in Donegal than in Wexford (144.8/105; 126.7 to 167.8, p<0.0001) and South Dublin (127.8/105; 111.3 to 148.2, p<0.0001). Overall, mean 25(OH)D levels were low and did not differ between patients (38.6 nmol/l) and controls (36.4 nmol/l) However, significantly more patients than controls had 25(OH)D levels <25 nmol/l (deficiency) (p=0.004). Levels of 25(OH)D (mean 50.74 nmol/l) were significantly higher in South Dublin (area with lowest prevalence) (p<0.0001) than in Donegal or Wexford. HLA DRB1*15 occurred most frequently in Donegal (greatest MS prevalence) and least frequently in South Dublin. CONCLUSION Vitamin D deficiency is common in Ireland. Latitudinal variation in MS probably relates to an interaction between genetic factors and environment (25(OH)D levels), and MS risk may be modified by vitamin D in genetically susceptible individuals.
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Affiliation(s)
- R Lonergan
- Department of Neurology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland.
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Grierson C, Miller D, LaPan P, Brady J. Utility of combining MMP-9 enzyme-linked immunosorbent assay and MMP-9 activity assay data to monitor plasma enzyme specific activity. Anal Biochem 2010; 404:232-4. [DOI: 10.1016/j.ab.2010.05.020] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2010] [Revised: 05/17/2010] [Accepted: 05/20/2010] [Indexed: 11/29/2022]
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Cawood TJ, Bashir M, Brady J, Murray B, Murray PT, O'Shea D. Urinary collagen IV and πGST: potential biomarkers for detecting localized kidney injury in diabetes--a pilot study. Am J Nephrol 2010; 32:219-225. [PMID: 20664197 DOI: 10.1159/000317531] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2010] [Accepted: 06/19/2010] [Indexed: 11/19/2022]
Abstract
BACKGROUND/AIMS Urinary biomarkers can identify damage to specific parts of the nephron. We performed a cross-sectional study to characterise the pattern of diabetic nephropathy using urinary biomarkers of glomerular fibrosis (collagen IV), proximal tubular damage (α-glutathione-S-transferase, GST) and distal tubular damage (πGST). METHODS Clinical data from 457 unselected patients attending a hospital diabetes clinic were collected. Spot urine samples were analysed for albumin and creatinine. Biomarkers were measured by enzyme-linked immunosorbent assay, and corrected to urinary creatinine. RESULTS All 3 biomarkers correlated weakly with albumin/creatinine ratios (Pearson correlation <0.2, p values <0.001). The most common abnormality was elevated urinary collagen IV (glomerular, 35%) compared to αGST (proximal tubule, 18%) or πGST (distal tubule, 15%). The proportion of patients with abnormal biomarker results increased across the normo-, micro- and macroalbuminuria groups, with collagen IV (26, 58, 65%) and πGST (11, 25, 35%) but not αGST. CONCLUSION In patients with diabetes, these urinary biomarkers appear to identify renal damage that is related to, but distinct from, urine albumin/creatinine ratios. The markers of glomerular fibrosis and distal tubular damage related most closely to the degree of albuminuria. Longitudinal studies are now required to assess whether these biomarkers can detect early renal disease with greater specificity and sensitivity than the albumin/creatinine ratio.
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Sabharwal A, Corrie PG, Midgley RS, Palmer C, Brady J, Mortimer P, Watson AJ, Margison GP, Middleton MR. A phase I trial of lomeguatrib and irinotecan in metastatic colorectal cancer. Cancer Chemother Pharmacol 2009; 66:829-35. [DOI: 10.1007/s00280-009-1225-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2009] [Accepted: 12/13/2009] [Indexed: 11/24/2022]
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Patel C, Ullal A, Roberts M, Brady J, Birch P, Bulmer JN, Wadehra V. Endometrial carcinoma detected with SurePath liquid-based cervical cytology: comparison with conventional cytology. Cytopathology 2009; 20:380-7. [DOI: 10.1111/j.1365-2303.2008.00621.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Brady J, Middleton M, Midgley RS, Mallath MK, Corrie P, Sirohi B, Chau I, Digumarti R, Botbyl J, Lager JJ. A phase I study of pazopanib in combination with FOLFOX 6 or capeOx in subjects with colorectal cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4133 Background: Pazopanib (paz) is a tyrosine kinase inhibitor of VEGFR-1, -2, -3, PDGF-α, -β, and c-kit. Inhibition of angiogenic pathways in combination with chemotherapy has been shown to benefit patients (pts) with colorectal cancer (CRC). Methods: Pts with previously untreated advanced or metastatic CRC and adequate organ function were assigned to paz with FOLFOX6 (FO) or capeOx (CO) by their physician. Doses of paz were escalated with full strength chemotherapy, starting at 400mg daily. The optimally tolerated regimen (OTR) was the combination dose at which <1/6 pts experienced dose-limiting toxicity (DLT). Results: Fifty pts were enrolled in FO (paz 400 mg, n=6; 800, 15), CO (400, 12; 800, 9) and reduced capecitabine (rc) CO (800, 8) cohorts: median age = 55.5, M/F = 37/13. Pts have remained on therapy for a median of 3 (range 0–17) months. Three pts remain on study. Safety data is available on 41. The most common AEs are summarized in the table below. The OTR was exceeded with CO in combination with 800 mg and 400 mg of pazopanib, but was not exceeded with 800 mg pazopanib when capecitabine was reduced to 850 mg/m2 twice daily or with FO with 800 mg pazopanib. Efficacy and pharmacokinetic analyses are ongoing. Conclusions: The OTRs were achieved at 800 mg paz with full-dose FO, and at 800mg paz with rcCO. [Table: see text] [Table: see text]
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Affiliation(s)
- J. Brady
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - M. Middleton
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - R. S. Midgley
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - M. K. Mallath
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - P. Corrie
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - B. Sirohi
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - I. Chau
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - R. Digumarti
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - J. Botbyl
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
| | - J. J. Lager
- Churchill Hospital, Oxford, United Kingdom; Tata Memorial Hospital, Mumbai, India; Addenbrooke's Hospital, Cambridge, United Kingdom; Royal Marsden Hospital, London, United Kingdom; Nizam's Insitute of Medical Sciences, Hyderabad, India; GlaxoSmithKline, Research Triangle Park, NC
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Amato RJ, Jac J, Harris P, Dalton M, Saxena S, Monzon F, Zhai J, Brady J, Willis JP. A phase II trial of intra-patient dose escalated-sorafenib in patients (pts) with metastatic renal cell cancer (MRCC). J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.5122] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Bonome T, Samimi G, Randonovich M, Brady J, Ghosh S, Ng S, Mok SC, Birrer MJ. A stromal-associated gene expression signature predicting for survival in a series of patients with advanced high-grade serous ovarian cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.5552] [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] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
5552 Background: Prognostic gene expression signatures have been derived for undissected serous ovarian epithelial tumors, yet the specific contribution of stromal cells to patient survival has not been addressed. The aim of this study is to identify stromal genes impacting patient survival in the context of serous ovarian cancer. Methods: Expression profiling utilizing Affymetrix U133 Plus 2.0 oligonucleotide arrays was completed for 50 microdissected stromal samples derived from high-grade, late-stage serous tumors displaying a broad spectrum of survival endpoints. A semi-supervised dimension reduction method employing multivariate Cox regression and principal components analysis was applied to the expression data to identify genes associated with patient survival and establish a predictive model. qRT-PCR was employed to validate the microarray expression data. Results: Cox regression analysis identified 267 significant genes. The first 6 principal components of these genes, representing >65% of total variance, entered a multivariate Cox model through which the relative hazard of future patients can be predicted. To confirm our finding, the microarray data underwent leave-one-out validation. The patients were equally divided into low- and high-risk groups and non-parametric Kaplan-Meier analysis and log rank test demonstrated the two groups were significantly different in survival (p = 0.0115). Genes associated with cell survival and migration were identified in the prognostic signature. For validation, qRT-PCR data for all 50 specimens was correlated with microarray expression values for a series of select prognostic genes. Conculsions: In this study, we characterized and validated a stromal dervied prognostic signature associated with poor patient survival. Contained in this novel predictor may be stromal targets suitable for the design of new therapeutic interventions, or use as independent diagnostic markers. No significant financial relationships to disclose.
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Affiliation(s)
- T. Bonome
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - G. Samimi
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - M. Randonovich
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - J. Brady
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - S. Ghosh
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - S. Ng
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - S. C. Mok
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
| | - M. J. Birrer
- National Cancer Institute, Bethesda, MD; Brigham and Women’s Hospital, Boston, MA
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