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Cullinan J, O'Brien T, Yacoub E. What explains regional variation in privately provided out-of-area residential placement costs for people with intellectual disability in Ireland? J Intellect Disabil Res 2024; 68:537-551. [PMID: 38445773 DOI: 10.1111/jir.13129] [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] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 02/06/2024] [Accepted: 02/09/2024] [Indexed: 03/07/2024]
Abstract
BACKGROUND Expenditure on residential placements for people with intellectual disability (ID) in Ireland is considerable and expected to increase. Despite this, there is limited evidence on the factors driving variation in privately provided 'out-of-area' residential placement costs, including across Community Health Organisations (CHOs)/regions. This is important to help inform the delivery of services at best value. METHODS We analyse unit cost data from 2019 for a sample of 278 high-cost publicly funded privately provided out-of-area residential placements for people with ID in Ireland. We undertake univariate analysis of the relationship between costs and a wide range of variables using t-tests and one-way analysis of variance. We employ multivariable regression analysis to examine how raw differentials in unit costs across regions can be accounted for by individual-level characteristics. RESULTS We estimate average unit costs of €264 170 per annum in our sample. The univariate analysis shows considerable variation in costs across a range of personal, disability, psychiatry/psychological, forensic issues, behaviour and supports and plans related variables. We also find wide variation in average unit costs across CHOs/regions (F = 4.58, P < 0.001), ranging from €213 380 to €331 880. The multivariable analysis shows that regional differences remain even after accounting for a wide range of individual characteristics that influence costs. CONCLUSIONS Our analysis shows that while the majority of differences in costs across regions can be explained, there is potential for cost savings in the provision of high-cost publicly funded out-of-area residential placements in Ireland. Overall this can help to develop and implement a more sustainable disability residential funding model in a context of rising demand for services. It also has potential implications for the approach to procurement of services.
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Affiliation(s)
- J Cullinan
- Discipline of Economics, School of Business and Economics, University of Galway, Galway, Ireland
| | - T O'Brien
- National Disability Operations Team, Health Service Executive, Dublin, Ireland
| | - E Yacoub
- National Clinical Lead: Mental Health in Intellectual Disability, Health Service Executive, Dublin, Ireland
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Taylor PD, McIntyre G, O'Brien T. Clinical aptitude. Br Dent J 2023; 235:447-448. [PMID: 37828160 DOI: 10.1038/s41415-023-6397-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 10/14/2023]
Affiliation(s)
- P D Taylor
- Faculty of Dental Surgery, Royal College of Surgeons of Edinburgh, Edinburgh, UK.
| | - G McIntyre
- Faculty of Dental Surgery, Royal College of Surgeons of Edinburgh, Edinburgh, UK.
| | - T O'Brien
- Faculty of Dental Surgery, Royal College of Surgeons of Edinburgh, Edinburgh, UK.
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Smitherman EA, Chahine RA, Beukelman T, Lewandowski LB, Rahman AKMF, Wenderfer SE, Curtis JR, Hersh AO, Abulaban K, Adams A, Adams M, Agbayani R, Aiello J, Akoghlanian S, Alejandro C, Allenspach E, Alperin R, Alpizar M, Amarilyo G, Ambler W, Anderson E, Ardoin S, Armendariz S, Baker E, Balboni I, Balevic S, Ballenger L, Ballinger S, Balmuri N, Barbar‐Smiley F, Barillas‐Arias L, Basiaga M, Baszis K, Becker M, Bell‐Brunson H, Beltz E, Benham H, Benseler S, Bernal W, Beukelman T, Bigley T, Binstadt B, Black C, Blakley M, Bohnsack J, Boland J, Boneparth A, Bowman S, Bracaglia C, Brooks E, Brothers M, Brown A, Brunner H, Buckley M, Buckley M, Bukulmez H, Bullock D, Cameron B, Canna S, Cannon L, Carper P, Cartwright V, Cassidy E, Cerracchio L, Chalom E, Chang J, Chang‐Hoftman A, Chauhan V, Chira P, Chinn T, Chundru K, Clairman H, Co D, Confair A, Conlon H, Connor R, Cooper A, Cooper J, Cooper S, Correll C, Corvalan R, Costanzo D, Cron R, Curiel‐Duran L, Curington T, Curry M, Dalrymple A, Davis A, Davis C, Davis C, Davis T, De Benedetti F, De Ranieri D, Dean J, Dedeoglu F, DeGuzman M, Delnay N, Dempsey V, DeSantis E, Dickson T, Dingle J, Donaldson B, Dorsey E, Dover S, Dowling J, Drew J, Driest K, Du Q, Duarte K, Durkee D, Duverger E, Dvergsten J, Eberhard A, Eckert M, Ede K, Edelheit B, Edens C, Edens C, Edgerly Y, Elder M, Ervin B, Fadrhonc S, Failing C, Fair D, Falcon M, Favier L, Federici S, Feldman B, Fennell J, Ferguson I, Ferguson P, Ferreira B, Ferrucho R, Fields K, Finkel T, Fitzgerald M, Fleming C, Flynn O, Fogel L, Fox E, Fox M, Franco L, Freeman M, Fritz K, Froese S, Fuhlbrigge R, Fuller J, George N, Gerhold K, Gerstbacher D, Gilbert M, Gillispie‐Taylor M, Giverc E, Godiwala C, Goh I, Goheer H, Goldsmith D, Gotschlich E, Gotte A, Gottlieb B, Gracia C, Graham T, Grevich S, Griffin T, Griswold J, Grom A, Guevara M, Guittar P, Guzman M, Hager M, Hahn T, Halyabar O, Hammelev E, Hance M, Hanson A, Harel L, Haro S, Harris J, Harry O, Hartigan E, Hausmann J, Hay A, Hayward K, Heiart J, Hekl K, Henderson L, Henrickson M, Hersh A, Hickey K, Hill P, Hillyer S, Hiraki L, Hiskey M, Hobday P, Hoffart C, Holland M, Hollander M, Hong S, Horwitz M, Hsu J, Huber A, Huggins J, Hui‐Yuen J, Hung C, Huntington J, Huttenlocher A, Ibarra M, Imundo L, Inman C, Insalaco A, Jackson A, Jackson S, James K, Janow G, Jaquith J, Jared S, Johnson N, Jones J, Jones J, Jones J, Jones K, Jones S, Joshi S, Jung L, Justice C, Justiniano A, Karan N, Kaufman K, Kemp A, Kessler E, Khalsa U, Kienzle B, Kim S, Kimura Y, Kingsbury D, Kitcharoensakkul M, Klausmeier T, Klein K, Klein‐Gitelman M, Kompelien B, Kosikowski A, Kovalick L, Kracker J, Kramer S, Kremer C, Lai J, Lam J, Lang B, Lapidus S, Lapin B, Lasky A, Latham D, Lawson E, Laxer R, Lee P, Lee P, Lee T, Lentini L, Lerman M, Levy D, Li S, Lieberman S, Lim L, Lin C, Ling N, Lingis M, Lo M, Lovell D, Lowman D, Luca N, Lvovich S, Madison C, Madison J, Manzoni SM, Malla B, Maller J, Malloy M, Mannion M, Manos C, Marques L, Martyniuk A, Mason T, Mathus S, McAllister L, McCarthy K, McConnell K, McCormick E, McCurdy D, Stokes PM, McGuire S, McHale I, McMonagle A, McMullen‐Jackson C, Meidan E, Mellins E, Mendoza E, Mercado R, Merritt A, Michalowski L, Miettunen P, Miller M, Milojevic D, Mirizio E, Misajon E, Mitchell M, Modica R, Mohan S, Moore K, Moorthy L, Morgan S, Dewitt EM, Moss C, Moussa T, Mruk V, Murphy A, Muscal E, Nadler R, Nahal B, Nanda K, Nasah N, Nassi L, Nativ S, Natter M, Neely J, Nelson B, Newhall L, Ng L, Nicholas J, Nicolai R, Nigrovic P, Nocton J, Nolan B, Oberle E, Obispo B, O'Brien B, O'Brien T, Okeke O, Oliver M, Olson J, O'Neil K, Onel K, Orandi A, Orlando M, Osei‐Onomah S, Oz R, Pagano E, Paller A, Pan N, Panupattanapong S, Pardeo M, Paredes J, Parsons A, Patel J, Pentakota K, Pepmueller P, Pfeiffer T, Phillippi K, Marafon DP, Phillippi K, Ponder L, Pooni R, Prahalad S, Pratt S, Protopapas S, Puplava B, Quach J, Quinlan‐Waters M, Rabinovich C, Radhakrishna S, Rafko J, Raisian J, Rakestraw A, Ramirez C, Ramsay E, Ramsey S, Randell R, Reed A, Reed A, Reed A, Reid H, Remmel K, Repp A, Reyes A, Richmond A, Riebschleger M, Ringold S, Riordan M, Riskalla M, Ritter M, Rivas‐Chacon R, Robinson A, Rodela E, Rodriquez M, Rojas K, Ronis T, Rosenkranz M, Rosolowski B, Rothermel H, Rothman D, Roth‐Wojcicki E, Rouster – Stevens K, Rubinstein T, Ruth N, Saad N, Sabbagh S, Sacco E, Sadun R, Sandborg C, Sanni A, Santiago L, Sarkissian A, Savani S, Scalzi L, Schanberg L, Scharnhorst S, Schikler K, Schlefman A, Schmeling H, Schmidt K, Schmitt E, Schneider R, Schollaert‐Fitch K, Schulert G, Seay T, Seper C, Shalen J, Sheets R, Shelly A, Shenoi S, Shergill K, Shirley J, Shishov M, Shivers C, Silverman E, Singer N, Sivaraman V, Sletten J, Smith A, Smith C, Smith J, Smith J, Smitherman E, Soep J, Son M, Spence S, Spiegel L, Spitznagle J, Sran R, Srinivasalu H, Stapp H, Steigerwald K, Rakovchik YS, Stern S, Stevens A, Stevens B, Stevenson R, Stewart K, Stingl C, Stokes J, Stoll M, Stringer E, Sule S, Sumner J, Sundel R, Sutter M, Syed R, Syverson G, Szymanski A, Taber S, Tal R, Tambralli A, Taneja A, Tanner T, Tapani S, Tarshish G, Tarvin S, Tate L, Taxter A, Taylor J, Terry M, Tesher M, Thatayatikom A, Thomas B, Tiffany K, Ting T, Tipp A, Toib D, Torok K, Toruner C, Tory H, Toth M, Tse S, Tubwell V, Twilt M, Uriguen S, Valcarcel T, Van Mater H, Vannoy L, Varghese C, Vasquez N, Vazzana K, Vehe R, Veiga K, Velez J, Verbsky J, Vilar G, Volpe N, von Scheven E, Vora S, Wagner J, Wagner‐Weiner L, Wahezi D, Waite H, Walker J, Walters H, Muskardin TW, Waqar L, Waterfield M, Watson M, Watts A, Weiser P, Weiss J, Weiss P, Wershba E, White A, Williams C, Wise A, Woo J, Woolnough L, Wright T, Wu E, Yalcindag A, Yee M, Yen E, Yeung R, Yomogida K, Yu Q, Zapata R, Zartoshti A, Zeft A, Zeft R, Zhang Y, Zhao Y, Zhu A, Zic C. Childhood-Onset Lupus Nephritis in the Childhood Arthritis and Rheumatology Research Alliance Registry: Short-Term Kidney Status and Variation in Care. Arthritis Care Res (Hoboken) 2023; 75:1553-1562. [PMID: 36775844 PMCID: PMC10500561 DOI: 10.1002/acr.25002] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Revised: 07/14/2022] [Accepted: 08/16/2022] [Indexed: 11/10/2022]
Abstract
OBJECTIVE The goal was to characterize short-term kidney status and describe variation in early care utilization in a multicenter cohort of patients with childhood-onset systemic lupus erythematosus (cSLE) and nephritis. METHODS We analyzed previously collected prospective data from North American patients with cSLE with kidney biopsy-proven nephritis enrolled in the Childhood Arthritis and Rheumatology Research Alliance (CARRA) Registry from March 2017 through December 2019. We determined the proportion of patients with abnormal kidney status at the most recent registry visit and applied generalized linear mixed models to identify associated factors. We also calculated frequency of medication use, both during induction and ever recorded. RESULTS We identified 222 patients with kidney biopsy-proven nephritis, with 64% class III/IV nephritis on initial biopsy. At the most recent registry visit at median (interquartile range) of 17 (8-29) months from initial kidney biopsy, 58 of 106 patients (55%) with available data had abnormal kidney status. This finding was associated with male sex (odds ratio [OR] 3.88, 95% confidence interval [95% CI] 1.21-12.46) and age at cSLE diagnosis (OR 1.23, 95% CI 1.01-1.49). Patients with class IV nephritis were more likely than class III to receive cyclophosphamide and rituximab during induction. There was substantial variation in mycophenolate, cyclophosphamide, and rituximab ever use patterns across rheumatology centers. CONCLUSION In this cohort with predominately class III/IV nephritis, male sex and older age at cSLE diagnosis were associated with abnormal short-term kidney status. We also observed substantial variation in contemporary medication use for pediatric lupus nephritis between pediatric rheumatology centers. Additional studies are needed to better understand the impact of this variation on long-term kidney outcomes.
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Ghoshhajra M, Bishop L, O'Brien T, Clinch K. CHALLENGES IN MANAGING THE LATE ADOLESCENT PATIENT ON PALFORZIA. Ann Allergy Asthma Immunol 2022. [DOI: 10.1016/j.anai.2022.08.933] [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: 11/11/2022]
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Maurer T, Brünisholz HP, O'Brien T, Coleridge M, Klopfenstein‐Bregger MD, Koch C. Complications, outcome and owner satisfaction after Callicrate Bander phallectomy and perineal urethrostomy in 14 equids. EQUINE VET EDUC 2022. [DOI: 10.1111/eve.13615] [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: 11/28/2022]
Affiliation(s)
- T. Maurer
- Department of Clinical Veterinary Science Vetsuisse Faculty Swiss Institute of Equine Medicine University of Bern Bern Switzerland
| | - H. P. Brünisholz
- Department of Clinical Veterinary Science Vetsuisse Faculty Swiss Institute of Equine Medicine University of Bern Bern Switzerland
| | - T. O'Brien
- Fethard Equine Hospital Tipperary Ireland
| | | | - M. D. Klopfenstein‐Bregger
- Department of Clinical Veterinary Science Vetsuisse Faculty Swiss Institute of Equine Medicine University of Bern Bern Switzerland
| | - C. Koch
- Department of Clinical Veterinary Science Vetsuisse Faculty Swiss Institute of Equine Medicine University of Bern Bern Switzerland
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Smith T, Gorder K, Rudick S, O'Brien T, Liebing K, Riley R, Kong J, Griffin J, Shreenivas S, Raymond T, Answini G, Egnaczyk G, Chung E. Implementing an Algorithm for Mechanical Support in Cardiogenic Shock Improves Survival. J Heart Lung Transplant 2021. [DOI: 10.1016/j.healun.2021.01.536] [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] Open
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Du S, Elliman S, Zeugolis D, O'Brien T. Macromolecular crowding enhances and accelerates extracellular matrix deposition in human umbilical cord derived mesenchymal stem cell cultures. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.369] [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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Ong C, Daemen A, Merrick K, O'Brien T, Friedman L, Hatzivassiliou G. Abstract P5-04-26: Identification of preclinical mechanisms driving acquired resistance to endocrine therapy in estrogen-receptor positive (ER+) breast cancer cells. Cancer Res 2019. [DOI: 10.1158/1538-7445.sabcs18-p5-04-26] [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: 11/16/2022]
Abstract
Abstract
Estrogen Receptor positive (ER+) breast cancer accounts for the majority of breast cancer cases and standard of care for these tumors is treatment with endocrine therapy, including the blockade of estrogen production (i.e. aromatase inhibitors; AIs) as well as the use of antagonists of ER function, i.e. selective estrogen receptor modulators (SERMs, i.e. tamoxifen) and selective estrogen receptor degraders (SERDs, i.e. fulvestrant). Despite the initial dependency of ER+ breast tumors on estrogen and ER for their survival and proliferation, treatment in the metastatic setting invariably leads to therapeutic resistance. While mechanisms of resistance to AIs include mutations in the estrogen receptor gene ESR1, less is known about mechanisms of resistance to SERMs and SERDs, thus it is essential to further investigate the latter, in order to successfully treat relapsed patients. To pre-clinically model cell-autonomous acquired resistance to these agents, we used T47D, an ER+ and p53- estrogen-responsive cell line treated with increasing concentrations of the SERM/SERD hybrid (SSH) ER-targeting agent GDC-0810 over the period of several months during which individual clones with acquired resistance to GDC-0810 were selected. GDC-0810-resistant clones were cross-resistant to other endocrine agents, including SERMs (tamoxifen) and SERDs (fulvestrant), consistent with general loss of dependency on ER. Surprisingly, the cells also lost sensitivity to palbociclib, the latter likely linked to their loss of one copy of the retinoblastoma (Rb) tumor suppressor gene. Comprehensive genetic and phenotypic characterization of the resistant clones relative to the parental cells revealed multiple mutations and deletions in DNA repair and cell cycle genes, and associated defects in DNA repair and cell cycle checkpoints. Cell cycle, proteomic, and mRNA expression analysis of parental versus resistant clones at baseline and upon DNA damage, identified a distinct cell cycle profile in the GDC-0810-resistant clones, characterized by accumulation of cells in the mitotic phase. A broad chemical screen identified pharmacologic inhibitors of cell cycle regulators and chemotherapeutic drug classes that preferentially target the ER-independent, GDC-0810 resistant clones compared to the parental cells. Our work provides novel insights into mechanisms and biomarkers of acquired resistant to estrogen therapies in ER+ breast cancer and reveals the acquisition of actionable dependencies that may potentially be exploited in resistant tumors. Furthermore, our studies provide rationale for testing specific chemotherapy regimens upon endocrine resistance accompanied by cell cycle and DNA repair checkpoint dysfunction in ER+ breast cancer.
Citation Format: Ong C, Daemen A, Merrick K, O'Brien T, Friedman L, Hatzivassiliou G. Identification of preclinical mechanisms driving acquired resistance to endocrine therapy in estrogen-receptor positive (ER+) breast cancer cells [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr P5-04-26.
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Affiliation(s)
- C Ong
- Genentech, Inc, South San Francisco, CA
| | - A Daemen
- Genentech, Inc, South San Francisco, CA
| | - K Merrick
- Genentech, Inc, South San Francisco, CA
| | - T O'Brien
- Genentech, Inc, South San Francisco, CA
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Liew A, Baustian C, Thomas D, Vaughan E, Sanz-Nogués C, Creane M, Chen X, Alagesan S, Owens P, Horan J, Dockery P, Griffin MD, Duffy A, O'Brien T. Allogeneic Mesenchymal Stromal Cells (MSCs) are of Comparable Efficacy to Syngeneic MSCs for Therapeutic Revascularization in C57BKSdb/db Mice Despite the Induction of Alloantibody. Cell Transplant 2018; 27:1210-1221. [PMID: 30016879 PMCID: PMC6434464 DOI: 10.1177/0963689718784862] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [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] [Indexed: 12/24/2022] Open
Abstract
Intramuscular administration of mesenchymal stromal cells (MSCs) represents a therapeutic option for diabetic critical limb ischemia. Autologous or allogeneic approaches may be used but disease-induced cell dysfunction may limit therapeutic efficacy in the former. Our aim was to compare the efficacy of allogeneic and autologous MSC transplantation in a model of hindlimb ischemia in diabetes mellitus and to determine whether allogeneic transplantation would result in the activation of an immune response. MSCs were isolated from C57BL/6 (B6) and diabetic obese C57BKSdb/db mice. Phosphate-buffered saline (control group), and MSCs (1 × 106) from B6 (allogeneic group) or C57BKSdb/db (syngeneic group) were administered intramuscularly into the ischemic thigh of C57BKSdb/db mice following the induction of hindlimb ischemia. MSCs derived from both mouse strains secrete several angiogenic factors, suggesting that the potential therapeutic effect is due to paracrine signaling. Administration of allogeneic MSCs significantly improved blood perfusion as compared with the control group on week 2 and 3, post-operatively. In comparison with the control group, syngeneic MSCs significantly improved blood perfusion at week 2 only. There was no statistical difference in blood perfusion between allogeneic and syngeneic MSC groups at any stages. There was no statistical difference in ambulatory and necrosis score among the three groups. Amputation of toes was only observed in the control group (one out of seven animals). Alloantibody was detected in three out of the eight mice that received allogeneic MSCs but was not observed in the other groups. In summary, we demonstrated comparable efficacy after transplantation of autologous and allogeneic MSCs in a diabetic animal model despite generation of an immune response.
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Affiliation(s)
- A Liew
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - C Baustian
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - D Thomas
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland.,2 Department of Anatomy, School of Medicine, College of Medicine, Nursing and Health Sciences, Centre for Research in Medical Devices (CÚRAM), Galway, Ireland
| | - E Vaughan
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - C Sanz-Nogués
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - M Creane
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - X Chen
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - S Alagesan
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - P Owens
- 3 National Centre for Biomedical Engineering Science (NCBES), and Centre for Microscopy & Imaging and National Biophotonic & Imaging Platform Ireland, Galway, Ireland
| | - J Horan
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - P Dockery
- 4 College of Engineering, National University of Ireland, Galway (NUIG) and Medtronic, Galway, Ireland
| | - M D Griffin
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
| | - A Duffy
- 4 College of Engineering, National University of Ireland, Galway (NUIG) and Medtronic, Galway, Ireland
| | - T O'Brien
- 1 Regenerative Medicine Institute (REMEDI) at CÚRAM SFI Research Centre, School of Medicine, Galway, Ireland
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Dolnikov A, Xu N, Tse B, O'Brien T. Epigenetic agent modulates tumour microenvironment and potentiates cart cell therapy. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.284] [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: 10/17/2022]
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Dolnikov A, Xu N, Tse B, Bishop D, Gottlieb D, Micklethwaite K, O'Brien T. Factors promoting CD19-negative relapses following CAR19T cell therapy. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.009] [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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12
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Misner DL, Kauss MA, Singh J, Uppal H, Bruening-Wright A, Liederer BM, Lin T, McCray B, La N, Nguyen T, Sampath D, Dragovich PS, O'Brien T, Zabka TS. Cardiotoxicity Associated with Nicotinamide Phosphoribosyltransferase Inhibitors in Rodents and in Rat and Human-Derived Cells Lines. Cardiovasc Toxicol 2018; 17:307-318. [PMID: 27783203 DOI: 10.1007/s12012-016-9387-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [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] [Indexed: 10/20/2022]
Abstract
Nicotinamide phosphoribosyltransferase (NAMPT) is a pleiotropic protein that functions as an enzyme, cytokine, growth factor and hormone. As a target for oncology, NAMPT is particularly attractive, because it catalyzes the rate-limiting step in the salvage pathway to generate nicotinamide adenine dinucleotide (NAD), a universal energy- and signal-carrying molecule involved in cellular energy metabolism and many homeostatic functions. Inhibition of NAMPT generally results in NAD depletion, followed by ATP reduction and loss of cell viability. Herein, we describe NAMPT inhibitor (NAMPTi)-induced cardiac toxicity in rodents following short-term administration (2-7 days) of NAMPTi's. The cardiac toxicity was interpreted as a functional effect leading to congestive heart failure, characterized by sudden death, thoracic and abdominal effusion, and myocardial degeneration. Based on exposures in the initial in vivo safety rodent studies and cardiotoxicity observed, we conducted studies in rat and human in vitro cardiomyocyte cell systems. Based on those results, combined with human cell line potency data, we demonstrated the toxicity is both on-target and likely human relevant. This toxicity was mitigated in vitro by co-administration of nicotinic acid (NA), which can enable NAD production through the NAMPT-independent pathway; however, this resulted in only partial mitigation in in vivo studies. This work also highlights the usefulness and predictivity of in vitro cardiomyocyte assays using human cells to rank-order compounds against potency in cell-based pharmacology assays. Lastly, this work strengthens the correlation between cardiomyocyte cell viability and functionality, suggesting that these assays together may enable early assessment of cardiotoxicity in vitro prior to conduct of in vivo studies and potentially reduce subsequent attrition due to cardiotoxicity.
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Affiliation(s)
- D L Misner
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA.
| | - M A Kauss
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - J Singh
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - H Uppal
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | | | - B M Liederer
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - T Lin
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - B McCray
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - N La
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - T Nguyen
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - D Sampath
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - P S Dragovich
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - T O'Brien
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
| | - T S Zabka
- Genentech, 1 DNA Way, M/S 59, South San Francisco, CA, 94080, USA
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O'Brien T, Christrup LL, Drewes AM, Fallon MT, Kress HG, McQuay HJ, Mikus G, Morlion BJ, Perez-Cajaraville J, Pogatzki-Zahn E, Varrassi G, Wells JCD. European Pain Federation position paper on appropriate opioid use in chronic pain management. Eur J Pain 2018; 21:3-19. [PMID: 27991730 PMCID: PMC6680203 DOI: 10.1002/ejp.970] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/01/2016] [Indexed: 02/06/2023]
Abstract
Poorly controlled pain is a global public health issue. The personal, familial and societal costs are immeasurable. Only a minority of European patients have access to a comprehensive specialist pain clinic. More commonly the responsibility for chronic pain management and initiating opioid therapy rests with the primary care physician and other non‐specialist opioid prescribers. There is much confusing and conflicting information available to non‐specialist prescribers regarding opioid therapy and a great deal of unjustified fear is generated. Opioid therapy should only be initiated by competent clinicians as part of a multi‐faceted treatment programme in circumstances where more simple measures have failed. Throughout, all patients must be kept under close clinical surveillance. As with any other medical therapy, if the treatment fails to yield the desired results and/or the patient is additionally burdened by an unacceptable level of adverse effects, the overall management strategy must be reviewed and revised. No responsible clinician will wish to pursue a failed treatment strategy or persist with an ineffective and burdensome treatment. In a considered attempt to empower and inform non‐specialist opioid prescribers, EFIC convened a European group of experts, drawn from a diverse range of basic science and relevant clinical disciplines, to prepare a position paper on appropriate opioid use in chronic pain. The expert panel reviewed the available literature and harnessed the experience of many years of clinical practice to produce these series of recommendations. Its success will be judged on the extent to which it contributes to an improved pain management experience for chronic pain patients across Europe. Significance This position paper provides expert recommendations for primary care physicians and other non‐ specialist healthcare professionals in Europe, particularly those who do not have ready access to specialists in pain medicine, on the safe and appropriate use of opioid medications as part of a multi‐faceted approach to pain management, in properly selected and supervised patients.
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Affiliation(s)
- T O'Brien
- Marymount University Hospital & Hospice, Curraheen, Cork, Ireland.,Cork University Hospital, Wilton, Cork and College of Medicine and Health, University College, Cork, Ireland
| | - L L Christrup
- Department of Drug Design and Pharmacology, University of Copenhagen, Denmark
| | - A M Drewes
- Mech-Sense, Department of Gastroenterology & Hepatology, Aalborg University Hospital, Denmark
| | - M T Fallon
- Edinburgh Cancer Research Centre, University of Edinburgh, UK
| | - H G Kress
- Department of Special Anaesthesia and Pain Therapy, Medical University of Vienna/AKH, Austria
| | | | - G Mikus
- Department of Clinical Pharmacology and Pharmacoepidemiology, University Hospital, Heidelberg, Germany
| | - B J Morlion
- Leuven Centre for Algology & Pain Management, University Hospital Leuven, Belgium
| | | | - E Pogatzki-Zahn
- Department of Anesthesiology, Intensive Care and Pain Medicine, University Hospital Müenster, Germany
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14
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Browne AS, Fèvre EM, Kinnaird M, Muloi DM, Wang CA, Larsen PS, O'Brien T, Deem SL. Serosurvey of Coxiella burnetii (Q fever) in Dromedary Camels (Camelus dromedarius) in Laikipia County, Kenya. Zoonoses Public Health 2017; 64:543-549. [PMID: 28176495 PMCID: PMC5655913 DOI: 10.1111/zph.12337] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 07/23/2016] [Indexed: 12/19/2022]
Abstract
Dromedary camels (Camelus dromedarius) are an important protein source for people in semi-arid and arid regions of Africa. In Kenya, camel populations have grown dramatically in the past few decades resulting in the potential for increased disease transmission between humans and camels. An estimated four million Kenyans drink unpasteurized camel milk, which poses a disease risk. We evaluated the seroprevalence of a significant zoonotic pathogen, Coxiella burnetii (Q fever), among 334 camels from nine herds in Laikipia County, Kenya. Serum testing revealed 18.6% positive seroprevalence of Coxiella burnetii (n = 344). Increasing camel age was positively associated with C. burnetii seroprevalence (OR = 5.36). Our study confirmed that camels living in Laikipia County, Kenya, have been exposed to the zoonotic pathogen, C. burnetii. Further research to evaluate the role of camels in disease transmission to other livestock, wildlife and humans in Kenya should be conducted.
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Affiliation(s)
- A. S. Browne
- Molecular Epidemiology and Public Health LaboratoryHopkirk Research InstituteMassey UniversityPalmerston NorthNZ
| | - E. M. Fèvre
- Institute of Infection and Global HealthUniversity of LiverpoolNestonUK
- International Livestock Research InstituteNairobiKE
| | | | - D. M. Muloi
- Centre for Immunity, Infection and EvolutionUniversity of EdinburghEdinburghUK
| | - C. A. Wang
- College of Veterinary MedicineNorth Carolina State UniversityRaleighNCUSA
| | - P. S. Larsen
- Department of EpidemiologySchool of Public HealthUniversity of MichiganAnn ArborMIUSA
| | - T. O'Brien
- Mpala Research CentreNanyukiKE
- Wildlife Conservation SocietyGlobal Conservation ProgramsBronx, New YorkNYUSA
| | - S. L. Deem
- Saint Louis Zoo Institute for Conservation MedicineSaint LouisMOUSA
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15
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Chavez M, Sharpe J, O'Brien T, Patton K, Portnoy D, VanderWalde N, Deneve J, Shibata D, Behrman S, Dickson P. Management and outcomes following pancreaticoduodenectomy for ampullary adenocarcinoma. Am J Surg 2017; 214:856-861. [DOI: 10.1016/j.amjsurg.2017.01.029] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 01/16/2017] [Accepted: 01/29/2017] [Indexed: 01/15/2023]
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16
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Bishop D, Xu N, Shen S, O'Brien T, Gottlieb D, Dolnikov A, Micklethwaite K. Differing co-stimulatory, linker and spacer domains produce variations in CD4 and CD8 cell composition and cytotoxic potential in CD19-specific chimeric antigen receptor (CAR19) T cells generated with the piggyBac transposase. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.012] [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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17
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Sanz-Nogués C, O'Flynn L, Costello P, Creane M, Elliman S, O'Brien T. Angiogenic assessment of ORBCEL TM , a novel stromal cell population for treating Critical Limb Ischaemia (CLI). Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.295] [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: 11/15/2022]
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18
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Mohamed S, McInerney V, Dunne A, Hayat A, Krawczyk J, Naughton S, Tarpey M, Finnerty A, Holohan M, Duffy A, Moloney T, Kavanagh E, Burke P, Abdeldaim Y, Moloney MC, Howard L, Liew A, Tubassam M, Walsh S, O'Brien T. Autologous mesenchymal stem cells as a novel therapy for no-option critical limb ischemia: Preliminary results of a phase 1 study. Cytotherapy 2017. [DOI: 10.1016/j.jcyt.2017.02.294] [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: 10/19/2022]
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19
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Mahon AM, MacGilchrist C, McIntosh C, O'Brien T. Characterization of patients with diabetic foot disease presenting to an Irish Podiatry Centre: profiling suitability for entry to a clinical trial of advanced wound therapeutics. Ir J Med Sci 2016; 186:659-669. [PMID: 27730333 DOI: 10.1007/s11845-016-1511-x] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 10/01/2016] [Indexed: 10/20/2022]
Abstract
BACKGROUND Diabetes mellitus, coined the 'Black Death of the Twenty-First Century', is associated with complications, including foot ulceration with potential loss of limb. There is a need for development of new wound therapies through completion of robust clinical trials. AIMS To profile demographics and wound characteristics of an Irish cohort with diabetes, forecast eligibility for entry to a clinical trial of advanced wound therapeutics, and adjust criteria to optimize eligibility for enrolment. METHODS A cross-sectional study of out-patients attending a Podiatry centre over 12 weeks was conducted. Information was collected through clinical assessment, including Neuropathy Disability Score and Ankle-Brachial Pressure Index. Ulcers were characterised as 'healing' or 'non-healing'; a 'healing' wound decreased by 30 % over the previous month, accomplished by retrospective analysis of files. Statistics, including binomial logistic regression and column analysis for eligibility assessment, were conducted. RESULTS Seventy-four participants were identified with a mean age of 67 (± 8.79) years. Non-healing DFU status correlated significantly with larger wound area (P = 0.013), infection (P = 0.009), and greater degrees of ischaemia (P = 0.015). The eligibility criteria were modelled after those proposed by the EU consortium project REDDSTAR. In this Irish population, these criteria limit eligibility to 1.4 %. CONCLUSIONS This research found an eligibility criterion of wound area 2-10 cm2 for enrolment in a clinical trial of mesenchymal stromal cell therapy too restrictive. Extension of wound area to 1-10 cm2 and the inclusion of neuro-ischaemic ulcers increased eligibility for enrolment from 1.4 to 20 %.
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Affiliation(s)
- A M Mahon
- Discipline of Podiatric Medicine, College of Medicine, Nursing and Health Sciences, Aras Moyola, National University of Ireland, Galway, Republic of Ireland. .,Regenerative Medicine Institute, Biosciences Research Building, National University of Ireland, Galway, Republic of Ireland.
| | - C MacGilchrist
- Discipline of Podiatric Medicine, College of Medicine, Nursing and Health Sciences, Aras Moyola, National University of Ireland, Galway, Republic of Ireland
| | - C McIntosh
- Discipline of Podiatric Medicine, College of Medicine, Nursing and Health Sciences, Aras Moyola, National University of Ireland, Galway, Republic of Ireland
| | - T O'Brien
- Regenerative Medicine Institute, Biosciences Research Building, National University of Ireland, Galway, Republic of Ireland.,School of Medicine, College of Medicine, Nursing and Health Sciences, National University of Ireland, Galway, Republic of Ireland
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20
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Green D, O'Brien T. Restoration to normal physiology without the use of excessive fluids. Br J Anaesth 2016; 117:264-6. [PMID: 27440645 DOI: 10.1093/bja/aew203] [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
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21
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Shen S, Dolnikov A, O'Brien T. Use of HDACi and PD-1/PD-L1 Blockade to Enhance Cytolytic Activity of Ex Vivo Expanded NK Cells Against Neuroblastoma. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.212] [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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22
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Shen S, Xu N, Yang S, O'Brien T, Dolnikov A. Stem Cell Approach to Generate Chimeric Antigen Receptor Modified Immune Effector Cells to Treat Cancer. Cytotherapy 2016. [DOI: 10.1016/j.jcyt.2016.03.211] [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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23
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Kiernan D, Hosking J, O'Brien T. Is adult gait less susceptible than paediatric gait to hip joint centre regression equation error? Gait Posture 2016; 45:133-6. [PMID: 26979895 DOI: 10.1016/j.gaitpost.2016.01.023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [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: 09/28/2015] [Revised: 11/30/2015] [Accepted: 01/21/2016] [Indexed: 02/02/2023]
Abstract
Hip joint centre (HJC) regression equation error during paediatric gait has recently been shown to have clinical significance. In relation to adult gait, it has been inferred that comparable errors with children in absolute HJC position may in fact result in less significant kinematic and kinetic error. This study investigated the clinical agreement of three commonly used regression equation sets (Bell et al., Davis et al. and Orthotrak) for adult subjects against the equations of Harrington et al. The relationship between HJC position error and subject size was also investigated for the Davis et al. set. Full 3-dimensional gait analysis was performed on 12 healthy adult subjects with data for each set compared to Harrington et al. The Gait Profile Score, Gait Variable Score and GDI-kinetic were used to assess clinical significance while differences in HJC position between the Davis and Harrington sets were compared to leg length and subject height using regression analysis. A number of statistically significant differences were present in absolute HJC position. However, all sets fell below the clinically significant thresholds (GPS <1.6°, GDI-Kinetic <3.6 points). Linear regression revealed a statistically significant relationship for both increasing leg length and increasing subject height with decreasing error in anterior/posterior and superior/inferior directions. Results confirm a negligible clinical error for adult subjects suggesting that any of the examined sets could be used interchangeably. Decreasing error with both increasing leg length and increasing subject height suggests that the Davis set should be used cautiously on smaller subjects.
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Affiliation(s)
- D Kiernan
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland.
| | - J Hosking
- Rehabilitation Engineering Unit, Posture and Mobility Centre, Cardiff and Vale NHS Trust, UK
| | - T O'Brien
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
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24
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Sharpe T, Malone A, French H, Kiernan D, O'Brien T. Effect of flip-flops on lower limb kinematics during walking: a cross-sectional study using three-dimensional gait analysis. Ir J Med Sci 2016; 185:493-501. [PMID: 26902474 DOI: 10.1007/s11845-016-1421-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 09/28/2015] [Accepted: 02/07/2016] [Indexed: 10/22/2022]
Abstract
BACKGROUND Flip-flops are a popular footwear choice in warm weather however their minimalist design offers little support to the foot. AIM To investigate the effect of flip-flops on lower limb gait kinematics in healthy adults, to measure adherence between the flip-flop and foot, and to assess the effect on toe clearance in swing. METHODS Fifteen healthy adults (8 male, mean age 27 years) completed a three-dimensional gait analysis assessment using Codamotion. Kinematic and lower limb temporal-spatial data were captured using the Modified Helen Hayes marker set with additional markers on the hallux and flip-flop sole. RESULTS Compared to barefoot walking, there were no differences in temporal-spatial parameters walking with flip-flops. There was an increase in peak knee flexion in swing (mean difference 4.6°, 95 % confidence interval (CI) [-5.8°, -3.4°], p < 0.001) and peak ankle dorsiflexion at terminal swing (mean difference 2°, 95 % CI [-3°, -1°], p = 0.001). Other kinematic parameters were unchanged. Peak separation between foot and flip-flop was 8.8 cm (SD 1.48), occurring at pre-swing. Minimum toe clearance of the hallux in barefoot walking measured 4.2 cm (SD 0.8). Minimum clearance of the flip-flop was 1.6 cm (SD 0.56). CONCLUSIONS Healthy adults adapted well to flip-flops. However, separation of the flip-flop from the foot led to increased knee flexion and ankle dorsiflexion in swing, probably to ensure that the flip-flop did not contact the ground and to maximise adherence to the foot. Minimum clearance of the flip-flop was low compared to barefoot clearance. This may increase the risk of tripping over uneven ground.
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Affiliation(s)
- T Sharpe
- School of Medicine, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - A Malone
- Gait Laboratory, Central Remedial Clinic (CRC), Vernon Avenue, Clontarf, Dublin 3, Ireland.
| | - H French
- School of Physiotherapy, Royal College of Surgeons in Ireland (RCSI), Dublin, Ireland
| | - D Kiernan
- Gait Laboratory, Central Remedial Clinic (CRC), Vernon Avenue, Clontarf, Dublin 3, Ireland
| | - T O'Brien
- Gait Laboratory, Central Remedial Clinic (CRC), Vernon Avenue, Clontarf, Dublin 3, Ireland
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25
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Ong CC, Blackwood E, Jakubiak D, Daemen A, Ramaswamy S, Heise C, Schmidt M, Sanders L, Wilson TR, Huw L, Ndubaku C, Rudolph J, Hoeflich KP, Friedman L, O'Brien T. Abstract PD3-04: PAK-1 amplified breast cancer cell lines are preferentially sensitive to PAK inhibition with G-5555. Cancer Res 2016. [DOI: 10.1158/1538-7445.sabcs15-pd3-04] [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: 11/16/2022]
Abstract
Abstract
The small GTP-binding proteins Rac1 and Cdc42 stimulate activity of the serine/threonine kinase p21-activated kinase-1 (PAK-1) to drive growth factor signaling networks and Ras-driven tumorigenesis. Genomic amplification and over-expression of PAK1 are prevalent in luminal breast cancer and correlate with poor clinical outcome. Here we use a novel and selective small molecule inhibitor, G-5555, of the group I PAKs (PAK1, 2, and 3) to evaluate the importance of PAK1 in promoting growth of PAK1 amplified breast cancer cells. Cell lines with amplification of PAK1 were found to be more sensitive to PAK1 inhibition than non-amplified cell lines. Additionally, reverse phase protein array (RPPA) was used to assess the effects of PAK1 inhibition on a wide range of signaling pathways in both amplified and non-amplified cell lines. Reduced levels of phosphorylation of MEK S298 was observed in all cell lines exposed to G-5555 irrespective of amplification status, consistent with PAK1 inhibition in these cell lines. However, modulation of this downstream PAK1 substrate did not correlate with inhibition of cell proliferation or induction of cell death. Cell lines that showed inhibition of proliferation in response to G-5555 also showed enhanced levels of cell death along with apoptosis. Moreover, G-5555 reduced tumor growth in the PAK1 amplified MDA-MB-175 xenograft tumor model. Finally, we compared the in vitro activity of G-5555 with palbociclib, a recently approved inhibitor of the cyclin-dependent kinases CDK4 and CDK6, in PAK1 amplified luminal breast cancer cell lines. Our data supports PAK1 as an attractive target in PAK1 amplified cells and tumors and suggests that inhibiting PAK1 rather than CDK4/6 in this context may be a more attractive therapeutic strategy.
Citation Format: Ong CC, Blackwood E, Jakubiak D, Daemen A, Ramaswamy S, Heise C, Schmidt M, Sanders L, Wilson TR, Huw L, Ndubaku C, Rudolph J, Hoeflich KP, Friedman L, O'Brien T. PAK-1 amplified breast cancer cell lines are preferentially sensitive to PAK inhibition with G-5555. [abstract]. In: Proceedings of the Thirty-Eighth Annual CTRC-AACR San Antonio Breast Cancer Symposium: 2015 Dec 8-12; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2016;76(4 Suppl):Abstract nr PD3-04.
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Affiliation(s)
- CC Ong
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - E Blackwood
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - D Jakubiak
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - A Daemen
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - S Ramaswamy
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - C Heise
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - M Schmidt
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - L Sanders
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - TR Wilson
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - L Huw
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - C Ndubaku
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - J Rudolph
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - KP Hoeflich
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - L Friedman
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
| | - T O'Brien
- Genentech, Inc, South San Francisco, CA; Blueprint Medicines, Cambridge, MA
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26
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Affiliation(s)
- H Linane
- From the Department of Endocrinology,
| | - A M Egan
- From the Department of Endocrinology
| | | | | | - S M Phelan
- Department of Pathology, University Hospital Galway, Newcastle, Galway, Ireland
| | - T O'Brien
- From the Department of Endocrinology
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27
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O'Reilly MW, Sexton DJ, Dennedy MC, Counihan TJ, Finucane FM, O'Brien T, O'Regan AW. Radiological remission and recovery of thirst appreciation after infliximab therapy in adipsic diabetes insipidus secondary to neurosarcoidosis. QJM 2015; 108:657-9. [PMID: 23417911 DOI: 10.1093/qjmed/hct023] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Neurosarcoidosis is a rare and aggressive variant of systemic sarcoidosis which may result in hypothalamic-pituitary dysfunction. We report a case of hypothalamic hypopituitarism secondary to neurosarcoidosis complicated by adipsic diabetes insipidus (ADI). Initiation of anti-tumour necrosis factor-α (TNF-α) therapy resulted in both radiological disease remission and recovery of osmoregulated thirst appreciation after 3 months. CASE SUMMARY A 22-year-old man was referred to the endocrinology service with profound weight gain, polyuria and lethargy. Biochemical testing confirmed anterior hypopituitarism while posterior pituitary failure was confirmed by hypotonic polyuria responding to desmopressin. Magnetic resonance imaging (MRI) demonstrated extensive hypothalamic infiltration; neurosarcoidosis was confirmed histologically after excisional cervical lymph node biopsy. Osmoregulated thirst appreciation was normal early in the disease course despite severe hypotonic polyuria. However, subsequent subjective loss of thirst appreciation and development of severe hypernatraemia in the setting of normal cognitive function indicated onset of ADI. MANAGEMENT Clinical management involved daily weighing, regular plasma sodium measurement, fixed daily fluid intake and oral desmopressin. We initiated immunosuppressive therapy with pulsed intravenous anti-TNF-α therapy (infliximab) after multidisciplinary team consultation. OUTCOME Infliximab therapy resulted in successful radiological disease remission and complete recovery of osmoregulated thirst appreciation. This was confirmed by subjective return of thirst response and maintenance of plasma sodium in the normal range in the absence of close biochemical monitoring.
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Affiliation(s)
| | | | | | - T J Counihan
- Department of Neurology, University College Hospital/National University of Ireland, Galway, Republic of Ireland
| | | | - T O'Brien
- From the Department of Endocrinology
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28
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O'Sullivan R, O'Brien T. Idiopathic Toe Walking: A Gait Laboratory Review. Ir Med J 2015; 108:214-216. [PMID: 26349353] [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: 06/05/2023]
Abstract
Idiopathic toe walking (ITW) is defined as one who is neurologically normal but demonstrates a preference for walking on the toes. It is a diagnosis of exclusion so differential diagnoses such as cerebral palsy, neuropathy or myopathy must be ruled out. A review of 102 patients attending a gait laboratory with a presumptive diagnosis of ITW found that gait analysis data agreed with this diagnosis in 81 (79.4%) of cases while the remaining 21 (20.6%) were not typical of this diagnosis. The features found to be significantly different between the groups were Babinski response, fast stretch of the gastrocnemius, knee flexion at initial contact and asymmetry at the ankles during gait. This study highlights that clinical gait analysis can be a useful, non-invasive means of diagnosing idiopathic toe walking and recommending appropriate intervention based on clinical and dynamic assessment of calf tightness.
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29
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Twomey F, O'Brien T, O'Reilly M, Bogan C, Fleming J. An Observational Research Study to Evaluate the Impact of Breakthrough Cancer Pain on the Daily Lives and Functional Status of Patients. Ir Med J 2015; 108:174-176. [PMID: 26182800] [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
Breakthrough cancer pain (BTcP) is common, resulting in significant physical and psychosocial morbidity. We assessed the impact of BTcP on 81 cancer patients attending Irish specialist palliative care services. BTcP occurred up to twice daily in 24 (30%) and 3-4 times daily in 57 (70%) of cases. Median scores for the 'worst' and 'least' pains in the previous 24 hours were 7 and 2/10 respectively. Pain lasted < 15 minutes in 19 (23.5%), 15-30 minutes in 25 (30.8%), 30-60 minutes in 18 (22.2%) and > 60 minutes in 19 (23.5%) of patients. BTcP had a negative impact on general activity, mood, walking ability, work, relations with others, sleep and overall enjoyment of life. BTcP increased anxiety, depression, anger, isolation, financial difficulties and an inability to undergo cancer treatments. Systematic assessment of BTcP should form an integral part of every oncology/palliative medicine assessment. Once identified, BTcP should be managed assiduously.
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30
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Kiernan D, Malone A, O'Brien T, Simms CK. A quantitative comparison of two kinematic protocols for lumbar segment motion during gait. Gait Posture 2015; 41:699-705. [PMID: 25701013 DOI: 10.1016/j.gaitpost.2015.01.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 09/29/2014] [Revised: 01/26/2015] [Accepted: 01/29/2015] [Indexed: 02/02/2023]
Abstract
During gait analysis, motion of the lumbar region is tracked either by means of a 2-dimensional assessment with markers placed along the spine or a 3-dimensional assessment treating the lumbar region as a rigid segment. The rigid segment assumption is necessary for inverse dynamic calculations further up the kinematic chain. In the absence of a reference standard, the choice of model is mostly based on clinical experience. However, the potential exists for large differences in kinematic output if different protocols are used. The aim of this study was to determine the influence of using two 3-dimensional lumbar segment protocols on the resultant kinematic output during gait. The first protocol was a skin surface rigid protocol with markers placed across the lumbar region while the second consisted of a rigid cluster utilizing active markers applied over the 3rd lumbar vertebra. Data from both protocols were compared through simultaneous recording during gait. Overall variability was lower in 4 out of 6 measures for the skin surface protocol. Ensemble average graphs demonstrated similar mean profiles between protocols. However, Functional Limits of Agreement demonstrated only a poor to moderate agreement. This trend was confirmed with a poor to moderate waveform similarity (CMC range 0.29-0.71). This study demonstrates that the protocol used to track lumbar segment kinematics is an important consideration for clinical and research purposes. Greater variability recorded by the rigid cluster during lumbar rotation suggests the skin surface protocol may be more suited to studies where axial rotation is a consideration.
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Affiliation(s)
- D Kiernan
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland; Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland.
| | - A Malone
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - T O'Brien
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - C K Simms
- Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland
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Kiernan D, Malone A, O'Brien T, Simms CK. The clinical impact of hip joint centre regression equation error on kinematics and kinetics during paediatric gait. Gait Posture 2015; 41:175-9. [PMID: 25457478 DOI: 10.1016/j.gaitpost.2014.09.026] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [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: 08/07/2014] [Revised: 09/26/2014] [Accepted: 09/29/2014] [Indexed: 02/02/2023]
Abstract
Regression equations based on pelvic anatomy are routinely used to estimate the hip joint centre during gait analysis. While the associated errors have been well documented, the clinical significance of these errors has not been reported. This study investigated the clinical agreement of three commonly used regression equation sets (Bell et al., Davis et al. and Orthotrak software) against the equations of Harrington et al. Full 3-dimensional gait analysis was performed on 18 healthy paediatric subjects. Kinematic and kinetic data were calculated using each set of regression equations and compared to Harrington et al. In addition, the Gait Profile Score and GDI-Kinetic were used to assess clinical significance. Bell et al. was the best performing set with differences in Gait Profile Score (0.13°) and GDI-Kinetic (0.84 points) falling below the clinical significance threshold. Small deviations were present for the Orthotrak set for hip abduction moment (0.1 Nm/kg), however differences in Gait Profile Score (0.27°) and GDI-Kinetic (2.26 points) remained below the clinical threshold. Davis et al. showed least agreement with a clinically significant difference in GDI-Kinetic score (4.36 points). It is proposed that Harrington et al. or Bell et al. regression equation sets are used during gait analysis especially where inverse dynamic data are calculated. Orthotrak is a clinically acceptable alternative however clinicians must be aware of the effects of error on hip abduction moment. The Davis et al. set should be used with caution for inverse dynamic analysis as error could be considered clinically meaningful.
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Affiliation(s)
- D Kiernan
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland; Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland.
| | - A Malone
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - T O'Brien
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - C K Simms
- Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland
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32
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Cotter TG, Dinneen SF, Healy DA, Bell MJ, Cunningham A, O'Shea PM, Dunne F, O'Brien T, Finucane FM. Glycaemic control is harder to achieve than blood pressure or lipid control in Irish adults with type 1 diabetes. Diabetes Res Clin Pract 2014; 106:e56-9. [PMID: 25451911 DOI: 10.1016/j.diabres.2014.09.036] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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] [Received: 08/05/2014] [Revised: 09/09/2014] [Accepted: 09/15/2014] [Indexed: 10/24/2022]
Abstract
We sought to determine the attainment of targets for glycaemic control and vascular risk reduction in an Irish cohort of T1DM adults. Of 797 patients (53% male, mean age 40.3 ± 14.8 years, HbA1c 8.5 ± 1.6% (69.6 ± 17.8 mmol mol(-1))), 15%, 68% and 62% achieved targets for HbA1c, blood pressure and LDL cholesterol, respectively.
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Affiliation(s)
- T G Cotter
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - S F Dinneen
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - D A Healy
- University Hospital Limerick, Limerick, Ireland
| | - M J Bell
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - A Cunningham
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - P M O'Shea
- Department of Clinical Biochemistry, Galway University Hospitals, Ireland
| | - F Dunne
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - T O'Brien
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland
| | - F M Finucane
- Galway Diabetes Research Centre, HRB Clinical Research Facility, National University of Ireland, Galway, Galway, Ireland.
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33
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Ching J, Amiridis S, Bjorksten A, Zheng T, Stylli S, Morokoff A, O'Brien T, Kaye AH. OP35 * THE PPAR AGONIST PIOGLITAZONE UPREGULATES EAAT2 EXPRESSION IN HUMAN GLIOBLASTOMA CELLS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou251.33] [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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34
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Kleeberg U, Davies A, Jarosz J, Mercadante S, Poulain P, O'Brien T, Schneid H, Kress H. Pan-European, open-label dose titration study of fentanyl buccal tablet in patients with breakthrough cancer pain. Eur J Pain 2014; 19:528-37. [DOI: 10.1002/ejp.577] [Citation(s) in RCA: 8] [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] [Accepted: 07/07/2014] [Indexed: 11/05/2022]
Affiliation(s)
- U.R. Kleeberg
- Hämatologisch-Onkologische Praxis Altona; Hamburg Germany
| | - A. Davies
- Palliative Care; The Royal Surrey County Hospital NHS Foundation Trust; Guildford UK
| | - J. Jarosz
- Mossakowski Medical Research Centre Polish Academy of Sciences; Warsaw Poland
| | - S. Mercadante
- Palliative Care; La Maddalena Cancer Center Palermo; Italy
| | - P. Poulain
- Unité de Soins Palliatifs; Polyclinique de l'Ormeau; Tarbes France
| | - T. O'Brien
- Department of Palliative Medicine; Marymount University Hospice; Cork University Hospital and University College; Ireland
| | - H. Schneid
- Teva Pharmaceuticals Industries Ltd; Maisons-Alfort France
| | - H.G. Kress
- Department of Special Anaesthesia and Pain Therapy; Medical University/AKH Vienna; Austria
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35
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Zizak V, O'Brien T, Barr T, Han S, Vargas Diaz S, Lapin J, Sklar Q. A-19 * Relation between Verbal Fluency Discrepancy Scores and Verbal Memory in a Geriatric Veteran Sample. Arch Clin Neuropsychol 2014. [DOI: 10.1093/arclin/acu038.19] [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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36
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Creane M, Elroy MM, Dawood CS, Duffy A, O'Brien T. A 3 month toxicology study of bone marrow derived mesenchymal stromal cells manufactured under GMP and administered once by intramuscular injection. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.141] [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: 11/30/2022]
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37
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Dolnikov A, Xu N, Shen S, O'Brien T. Increasing stem cell dose promotes the longevity of the graft in mice transplanted with human cord blood stem cells. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.206] [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: 10/25/2022]
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38
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Kulkarni M, O'Loughlin A, Vazquez R, Mashayekhi K, Rooney P, Greiser U, O'Toole E, O'Brien T, Malagon MM, Pandit A. Use of a fibrin-based system for enhancing angiogenesis and modulating inflammation in the treatment of hyperglycemic wounds. Biomaterials 2013; 35:2001-10. [PMID: 24331702 DOI: 10.1016/j.biomaterials.2013.11.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Accepted: 11/01/2013] [Indexed: 02/08/2023]
Abstract
The complex pathophysiology of chronic ulceration in diabetic patients is poorly understood; diabetes-related lower limb amputation is a major health issue, which has limited effective treatment regimes in the clinic. This study attempted to understand the complex pathology of hyperglycemic wound healing by showing profound changes in gene expression profiles in wounded human keratinocytes in hyperglycemic conditions compared to normal glucose conditions. In the hyper-secretory wound microenvironment of hyperglycemia, Rab18, a secretory control molecule, was found to be significantly downregulated. Using a biomaterial platform for dual therapy targeting the two distinct pathways, this study aimed to resolve the major dysregulated pathways in hyperglycemic wound healing. To complement Rab18, and promote angiogenesis eNOS was also targeted, and this novel Rab18-eNOS therapy via a dynamically controlled 'fibrin-in-fibrin' delivery system, demonstrated enhanced wound closure, by increasing functional angiogenesis and reducing inflammation, in an alloxan-induced hyperglycemic preclinical ear ulcer model of compromised wound healing.
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Affiliation(s)
- M Kulkarni
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland
| | - A O'Loughlin
- Regenerative Medicine Institute, National University of Ireland, Galway, Ireland
| | - R Vazquez
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/University of Cordoba, and CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 14014-Cordoba, Spain
| | - K Mashayekhi
- Regenerative Medicine Institute, National University of Ireland, Galway, Ireland
| | - P Rooney
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland
| | - U Greiser
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland; Regenerative Medicine Institute, National University of Ireland, Galway, Ireland
| | - E O'Toole
- Centre for Cutaneous Research, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - T O'Brien
- Regenerative Medicine Institute, National University of Ireland, Galway, Ireland
| | - Maria M Malagon
- Department of Cell Biology, Physiology, and Immunology, IMIBIC/Reina Sofia University Hospital/University of Cordoba, and CIBER Fisiopatologia de la Obesidad y Nutricion (CIBERobn), Instituto de Salud Carlos III, 14014-Cordoba, Spain
| | - A Pandit
- Network of Excellence for Functional Biomaterials, National University of Ireland, Galway, Ireland.
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Kiernan D, Walsh M, O'Sullivan R, O'Brien T, Simms CK. The influence of estimated body segment parameters on predicted joint kinetics during diplegic cerebral palsy gait. J Biomech 2013; 47:284-8. [PMID: 24200337 DOI: 10.1016/j.jbiomech.2013.10.024] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 07/30/2013] [Revised: 10/14/2013] [Accepted: 10/14/2013] [Indexed: 11/25/2022]
Abstract
Inverse Dynamic calculations are routinely used in joint moment and power estimates during gait with anthropometric data often taken from published sources. Many biomechanical analyses have highlighted the need to obtain subject-specific anthropometric data (e.g. Mass, Centre of Mass, Moments of Inertia) yet the types of imaging techniques required to achieve this are not always available in the clinical setting. Differences in anthropometric sets have been shown to affect the reactive force and moment calculations in normal subjects but the effect on a paediatric diplegic cerebral palsy group has not been investigated. The aim of this study was to investigate the effect of using different anthropometric sets on predicted sagittal plane moments during normal and diplegic cerebral palsy gait. Three published anthropometric sets were applied to the reactive force and moment calculations of 14 Cerebral Palsy and 14 Control subjects. Statistically significant differences were found when comparing the different anthropometric sets but variability in the resulting sagittal plane moment calculations between sets was low (0.01-0.07 Nm/kg). In addition, the GDI-Kinetic, used as an outcome variable to assess whether differences were clinically meaningful, indicated no clinically meaningful difference between sets. The results suggest that the effects of using different anthropometric sets on the kinetic profiles of normal and diplegic cerebral palsy subjects are clinically insignificant.
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Affiliation(s)
- D Kiernan
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland; Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland.
| | - M Walsh
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - R O'Sullivan
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - T O'Brien
- Gait Laboratory, Central Remedial Clinic, Clontarf, Dublin 3, Ireland
| | - C K Simms
- Trinity Centre for Bioengineering, Parsons Building, Trinity College Dublin, Dublin 2, Ireland
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40
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McDermott AM, Kidd P, Gately M, Casey R, Burke H, O'Donnell P, Kirrane F, Dinneen SF, O'Brien T. Restructuring of the Diabetes Day Centre: a pilot lean project in a tertiary referral centre in the West of Ireland. BMJ Qual Saf 2013; 22:681-8. [DOI: 10.1136/bmjqs-2012-001676] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [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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41
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Pinsky M, O'Brien T, Green D, Jonas M. Technology comparison studies require precise reference controls to be valid. Br J Anaesth 2013; 110:659-61. [DOI: 10.1093/bja/aet041] [Citation(s) in RCA: 3] [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: 11/14/2022] Open
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42
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Leszczynsk A, O'Doherty A, Farrell E, O'Brien F, O'Brien T, Murphy M. ENHANCED ENDOCHONDRAL OSSIFICATION IN VESSEL DERIVED STEM CELLS BY ATHEROSCLEROTIC ENVIRONMENT. Heart 2012. [DOI: 10.1136/heartjnl-2012-303148a.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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43
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Gindoff P, Frankfurter D, Dayal M, Marshall M, Harralson A, O'Brien T. Distribution of LH receptor (LHCGR) polymorphisms in patients undergoing controlled ovarian stimulation (COS) – IVF. Fertil Steril 2012. [DOI: 10.1016/j.fertnstert.2012.07.060] [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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44
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Suder A, Thillai K, Rudman S, Chandra A, Rottenberg G, Challacombe B, Kooiman G, Srinivasan P, O'Brien T, Chowdhury S. A Retrospective Study of Metastasectomy in Metastatic Renal Cell Carcinoma. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33401-3] [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] Open
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45
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Abstract
We present the case of a 30-year-old patient with pontine glioblastoma multiforme, World Health Organisation grade IV (WHO IV). This case is of particular interest in terms of the patient's use of social media as a medium of expression. This popular form of communication raises important clinical, ethical and social issues relating to confidentiality and the nature of the physician-patient relationship in a unique context.
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Affiliation(s)
- A C Lowney
- Department of Palliative Medicine, Marymount Hospice and Cork University Hospital, Cork, Ireland.
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46
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Mercadante S, Davies A, Jarosz J, Kleeberg U, O'Brien T, Poulain P, Schneid H. Breakthrough Pain (BTP) in Opioid-Tolerant Cancer Patients: A Pan-European Open-Label Multicentre Study with Fentanyl Buccal Tablet (FBT). Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)34161-2] [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: 10/25/2022] Open
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47
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Abstract
We designed, fabricated, and characterized thermal performances of Fabry-Pérot quantum-dot lasers with both metal-coated and conventional dielectric waveguides. With proper design, metals, such as Ag, Au, Cu, and Al can function as a low loss waveguide wall as well as an efficient heat remover. Metal-cavity waveguide lasers showed excellent threshold and characteristic temperature working above 120 °C, while dielectric waveguide lasers ceased operation near 80 °C under the same conditions. The thermal analysis of these lasers showed that metal-cavity lasers have approximately 1.5 times higher thermal conductivity compared with those of the dielectric lasers. We believe that the metal-coating of waveguides and the proper selection of metal efficiently remove the heat from the active region and enable stable lasing operation at high temperature.
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Affiliation(s)
- A Matsudaira
- Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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48
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Minuti G, Cappuzzo F, Duchnowska R, Jassem J, Fabi A, O'Brien T, Mendoza AD, Landi L, Biernat W, Czartoryska-Arłukowicz B, Jankowski T, Zuziak D, Zok J, Szostakiewicz B, Foszczyńska-Kłoda M, Tempińska-Szałach A, Rossi E, Varella-Garcia M. Increased MET and HGF gene copy numbers are associated with trastuzumab failure in HER2-positive metastatic breast cancer. Br J Cancer 2012; 107:793-9. [PMID: 22850551 PMCID: PMC3425981 DOI: 10.1038/bjc.2012.335] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background: To investigate whether copy number gain of MET or hepatocyte growth factor (HGF) affect trastuzumab sensitivity in HER2-positive metastatic breast cancer (MBC). Methods: We analysed 130 HER2-positive MBC treated with trastuzumab-based therapy. MET and HGF gene copy numbers (GCN) were assessed by fluorescence in situ hybridisation (FISH) in primary breast cancer samples. Receiver operating characteristic analysis was applied to find the best cutoff point for both MET and HGF GCN. Results: MET FISH-positive cases (N=36, mean ⩾3.72) had a significantly higher trastuzumab failure rate (44.4% vs 16.0% P=0.001) and a significantly shorter time to progression (5.7 vs 9.9 months; HR 1.74; P=0.006) than MET FISH-negative cases (N=94, mean <3.72). Hepatocyte growth factor GCN was evaluated in 84 cases (64.6%). Receiver operating characteristic analysis identified 33 HGF FISH-positive patients (mean HGF GCN ⩾3.01). HGF FISH-positive status was significantly associated with higher risk of failure (30.3% vs 7.8% P=0.007) as compared with HGF FISH-negative cases (N=51, mean <3.01). MET and HGF FISH-positive status was highly correlated (P<0.001) and combination of both biomarkers did not increase predictive value of either considered separately. Conclusion: High GCNs of MET and HGF associate with an increased risk of trastuzumab-based therapy failure in HER2-positive MBC.
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Affiliation(s)
- G Minuti
- Department of Medical Oncology, Civil Hospital of Livorno, Istituto Toscano Tumori, Viale Alfieri 36, Livorno 57100, Italy
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49
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50
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Crowe M, Inder M, Carlyle D, Wilson L, Whitehead L, Panckhurst A, O'Brien T, Frampton C, Joyce P. Nurse-led delivery of specialist supportive care for bipolar disorder: a randomized controlled trial. J Psychiatr Ment Health Nurs 2012; 19:446-54. [PMID: 22070452 DOI: 10.1111/j.1365-2850.2011.01822.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [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: 11/28/2022]
Abstract
The aim of the study is (1) to assess the feasibility of delivering nurse-led specialist supportive care as an adjunct to usual care in the clinical setting; (2) to examine the relationship between the delivery of specialist supportive care and improved self-efficacy and functioning and reduced depressive symptoms. A randomized controlled trial of the clinical effectiveness of specialist supportive care as an adjunct to usual care was conducted in community mental health services at one site. Participants were randomized to either usual care or usual care and the adjunctive intervention. Self-report measures of depression, general functioning and self-efficacy were completed by participants in both groups at baseline and 9 months. The intervention was delivered parallel to usual treatment arrangements. While recruitment numbers were sufficient, a low rate of engagement meant we were unable to show significant differences in depressive symptoms or self-efficacy between the usual care group and the specialist supportive care plus usual care group. This study demonstrated that it was difficult to engage patients with bipolar disorder in specialist supportive care when they were currently in a mood episode and under the care of community mental health services.
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Affiliation(s)
- M Crowe
- Department of Psychological Medicine, Centre for Postgraduate Nursing, University of Otago, Christchurch, New Zealand.
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