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Hoang P, Sturnieks DL, Butler A, Chaplin C, Hicks C, Lo J, Ratanapongleka M, Robinson S, Smith N, Turner J, Krishnan AV, Barnett M, Gandevia S, Lord SR, Menant JC. A custom-built step exergame training programme to prevent falls in people with multiple sclerosis: A multicentre randomised controlled trial. Mult Scler 2024; 30:571-584. [PMID: 38362861 DOI: 10.1177/13524585241229360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
BACKGROUND Cognitive-motor step training can improve stepping, balance and mobility in people with multiple sclerosis (MS), but effectiveness in preventing falls has not been demonstrated. OBJECTIVES This multisite randomised controlled trial aimed to determine whether 6 months of home-based step exergame training could reduce falls and improve associated risk factors compared with usual care in people with MS. METHODS In total, 461 people with MS aged 22-81 years were randomly allocated to usual care (control) or unsupervised home-based step exergame training (120 minutes/week) for 6 months. The primary outcome was rate of falls over 6 months from randomisation. Secondary outcomes included physical, cognitive and psychosocial function at 6 months and falls over 12 months. RESULTS Mean (standard deviation (SD)) weekly training duration was 70 (51) minutes over 6 months. Fall rates did not differ between intervention and control groups (incidence rates (95% confidence interval (CI)): 2.13 (1.57-2.69) versus 2.24 (1.35-3.13), respectively, incidence rate ratio: 0.96 (95% CI: 0.69-1.34, p = 0.816)). Intervention participants performed faster in tests of choice-stepping reaction time at 6 months. No serious training-related adverse events were reported. CONCLUSION The step exergame training programme did not reduce falls among people with MS. However, it significantly improved choice-stepping reaction time which is critical to ambulate safely in daily life environment.
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Affiliation(s)
- Phu Hoang
- Neuroscience Research Australia, Randwick, NSW, Australia/School of Population Health, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia
- Multiple Sclerosis Plus, Lidcombe, NSW Australia
| | - Daina L Sturnieks
- Neuroscience Research Australia, Randwick, NSW, Australia
- School of Biomedical Sciences, University of New South Wales, Sydney, NSW, Australia
- UNSW Ageing Futures Institute, University of New South Wales, Sydney, NSW, Australia
| | - Anna Butler
- Neuroscience Research Australia, Randwick, NSW, Australia
| | - Carly Chaplin
- Neuroscience Research Australia, Randwick, NSW, Australia
| | - Cameron Hicks
- Neuroscience Research Australia, Randwick, NSW, Australia
| | - Joanne Lo
- Neuroscience Research Australia, Randwick, NSW, Australia
| | | | | | - Natassia Smith
- Neuroscience Research Australia, Randwick, NSW, Australia
| | - Jessica Turner
- Neuroscience Research Australia, Randwick, NSW, Australia
| | - Arun V Krishnan
- School of Clinical Medicine, University of New South Wales, Sydney, NSW, Australia
- Department of Neurology, Prince of Wales Hospital, Sydney, NSW, Australia
| | - Michael Barnett
- Sydney Neurology MS Clinic, The Brain and Mind Centre, Camperdown, NSW, Australia
| | - Simon Gandevia
- Neuroscience Research Australia, Randwick, NSW, Australia
- School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Stephen R Lord
- Neuroscience Research Australia, Randwick, NSW, Australia
- School of Population Health, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia
| | - Jasmine C Menant
- Neuroscience Research Australia, Randwick, NSW, Australia
- School of Population Health, Faculty of Medicine & Health, University of New South Wales, Sydney, NSW, Australia
- UNSW Ageing Futures Institute, University of New South Wales, Sydney, NSW, Australia
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Sturnieks DL, Hicks C, Smith N, Ratanapongleka M, Menant J, Turner J, Lo J, Chaplin C, Garcia J, Valenzuela MJ, Delbaere K, Herbert RD, Sherrington C, Toson B, Lord SR. Exergame and cognitive training for preventing falls in community-dwelling older people: a randomized controlled trial. Nat Med 2024; 30:98-105. [PMID: 38228913 DOI: 10.1038/s41591-023-02739-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 04/23/2023] [Accepted: 11/27/2023] [Indexed: 01/18/2024]
Abstract
Exergame training, in which video games are used to promote exercise, can be tailored to address cognitive and physical risk factors for falls and is a promising method for fall prevention in older people. Here, we performed a randomized clinical trial using the smart±step gaming system to examine the effectiveness of two home-based computer game interventions, seated cognitive training and step exergame training, for fall prevention in community-dwelling older people, as compared with a minimal-intervention control group. Participants aged 65 years or older (n = 769, 71% female) living independently in the community were randomized to one of three arms: (1) cognitive training using a computerized touchpad while seated, (2) exergame step training on a computerized mat or (3) control (provided with an education booklet on healthy ageing and fall prevention). The rate of falls reported monthly over 12 months-the primary outcome of the trial-was significantly reduced in the exergame training group compared with the control group (incidence rate ratio = 0.74, 95% confidence interval = 0.56-0.98), but was not statistically different between the cognitive training and control groups (incidence rate ratio = 0.86, 95% confidence interval = 0.65-1.12). No beneficial effects of the interventions were found for secondary outcomes of physical and cognitive function, and no serious intervention-related adverse events were reported. The results of this trial support the use of exergame step training for preventing falls in community-dwelling older people. As this intervention can be conducted at home and requires only minimal equipment, it has the potential for scalability as a public health intervention to address the increasing problem of falls and fall-related injuries. Australian and New Zealand Clinical Trial Registry identifier: ACTRN12616001325493 .
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Affiliation(s)
- Daina L Sturnieks
- Neuroscience Research Australia, Randwick, New South Wales, Australia.
- School of Biomedical Sciences, University of New South Wales, Sydney, New South Wales, Australia.
- UNSW Ageing Futures Institute, Sydney, New South Wales, Australia.
| | - Cameron Hicks
- Neuroscience Research Australia, Randwick, New South Wales, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Natassia Smith
- Neuroscience Research Australia, Randwick, New South Wales, Australia
| | | | - Jasmine Menant
- Neuroscience Research Australia, Randwick, New South Wales, Australia
- UNSW Ageing Futures Institute, Sydney, New South Wales, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Jessica Turner
- Neuroscience Research Australia, Randwick, New South Wales, Australia
| | - Joanne Lo
- Neuroscience Research Australia, Randwick, New South Wales, Australia
| | - Carly Chaplin
- Neuroscience Research Australia, Randwick, New South Wales, Australia
| | - Jaime Garcia
- UTS Games Studio, Faculty of Engineering and IT, University of Technology Sydney, Sydney, New South Wales, Australia
| | - Michael J Valenzuela
- Centre for Healthy Brain Ageing, University of New South Wales, Sydney, New South Wales, Australia
- Skin2Neuron Pty Ltd, Sydney, New South Wales, Australia
| | - Kim Delbaere
- Neuroscience Research Australia, Randwick, New South Wales, Australia
- UNSW Ageing Futures Institute, Sydney, New South Wales, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
| | - Robert D Herbert
- Neuroscience Research Australia, Randwick, New South Wales, Australia
- School of Biomedical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Catherine Sherrington
- Sydney Musculoskeletal Health, Sydney School of Public Health, Sydney Local Health District, University of Sydney, Sydney, New South Wales, Australia
| | - Barbara Toson
- College of Medicine and Public Health, Flinders University, Adelaide, South Australia, Australia
| | - Stephen R Lord
- Neuroscience Research Australia, Randwick, New South Wales, Australia
- UNSW Ageing Futures Institute, Sydney, New South Wales, Australia
- School of Population Health, University of New South Wales, Sydney, New South Wales, Australia
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Washington SL, Lonergan PE, Cowan JE, Zhao S, Broering JM, Palmer NR, Hicks C, Cooperberg MR, Carroll PR. Ten-year work burden after prostate cancer treatment. Cancer Med 2023; 12:19234-19244. [PMID: 37724617 PMCID: PMC10557888 DOI: 10.1002/cam4.6530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/30/2023] [Accepted: 09/02/2023] [Indexed: 09/21/2023] Open
Abstract
INTRODUCTION We aim to characterize the magnitude of the work burden (weeks off from work) associated with prostate cancer (PCa) treatment over a 10-year period after PCa diagnosis and identify those at greatest risk. MATERIALS AND METHODS We identified men diagnosed with PCa treated with radical prostatectomy, radiation therapy, or active surveillance/watchful waiting within CaPSURE. Patients self-reported work burden and SF36 general health scores via surveys before and 1,3,5, and 10 years after treatment. Using multivariate repeated measures generalized estimating equation modeling we examined the association between primary treatment with risk of any work weeks lost due to care. RESULTS In total, 6693 men were included. The majority were White (81%, 5% Black, and 14% Other) with CAPRA low- (60%) or intermediate-risk (32%) disease and underwent surgery (62%) compared to 29% radiation and 9% active surveillance. Compared to other treatments, surgical patients were more likely to report greater than 7 days off work in the first year, with relatively less time off over time. Black men (RR 0.64, 95% CI 0.54-0.77) and those undergoing radiation (vs. surgery, RR 0.46, 95% CI 0.41-0.51) were less likely to report time off from work over time. Mean baseline GH score (73 [SD 18]) was similar between race and treatment groups, and stable over time. CONCLUSIONS The work burden of cancer care continued up to 10 years after treatment and varied across racial groups and primary treatment groups, highlighting the multifactorial nature of this issue and the call to leverage greater resources for those at greatest risk.
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Affiliation(s)
- Samuel L. Washington
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Epidemiology & BiostatisticsUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Peter E. Lonergan
- Department of UrologySt. James's HospitalDublinIreland
- Department of Surgery, School of MedicineTrinity College DublinDublinIreland
| | - Janet E. Cowan
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Shoujun Zhao
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | | | - Nynikka R. Palmer
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of MedicineUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Division of General Internal MedicineZuckerberg San Francisco General HospitalSan FranciscoCaliforniaUSA
| | - Cameron Hicks
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Matthew R. Cooperberg
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
- Department of Epidemiology & BiostatisticsUniversity of CaliforniaSan FranciscoCaliforniaUSA
| | - Peter R. Carroll
- Department of Urology, Helen Diller Family Comprehensive Cancer CenterUniversity of CaliforniaSan FranciscoCaliforniaUSA
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Bayne D, Maru J, Srirangapatanam S, Hicks C, Neuhaus J, Scales C, Chi T, Stoller M. Effects of Delayed Surgical Intervention Following Emergency Department Presentation on Stone Surgery Complexity. J Endourol 2023; 37:729-737. [PMID: 37158820 PMCID: PMC10280210 DOI: 10.1089/end.2022.0843] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Introduction and Objective: Prior literature had demonstrated increased stone burden and higher rates of staged surgery in individuals of lower socioeconomic status (SES). Low SES individuals are more likely to experience delays in definitive stone surgery after initial presentation to the emergency department (ED) for kidney stones. This study aims to investigate the relationship between delays in definitive kidney stone surgery and the subsequent need for percutaneous nephrolithotomy (PNL) and/or staged surgical procedures using a statewide data set. Methods: This retrospective cohort study gathered longitudinal data from 2009 to 2018 using the California Department of Health Care Access and Information data set. Patient demographic characteristics, comorbidities, diagnosis/procedure codes, and distance were analyzed. Complex stone surgery was defined as initial PNL and/or undergoing more than one procedure within 365 days of initial intervention. Results: A total of 1,816,093 billing encounters from 947,798 patients were screened, resulting in 44,835 patients with ED visits for kidney stones followed by a urologic stone procedure. Multivariable analysis revealed that relative to patients who underwent surgery within 1 month of initial ED visit for stone disease, patients were at increased odds of undergoing complex surgery if waiting ≥6 months (odds ratio [OR] 1.18, p = 0.022), ≥1 year (OR 1.29, p < 0.001), and ≥3 years (OR 1.43, p < 0.001). Conclusions: Delays in definitive stone surgery after initial ED encounter for stone disease were associated with increased likelihood of undergoing a complex stone treatment.
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Affiliation(s)
- David Bayne
- Department of Urology, University of California San Francisco, San Francisco, California, USA
| | - Johsias Maru
- School of Medicine, University of California San Francisco, San Francisco, California, USA
| | | | - Cameron Hicks
- School of Medicine, University of California San Francisco, San Francisco, California, USA
| | - John Neuhaus
- Division of Biostatistics, University of California San Francisco, San Francisco, California, USA
| | - Charles Scales
- Department of Urology, Duke University, Durham, North Carolina, USA
| | - Thomas Chi
- Department of Urology, University of California San Francisco, San Francisco, California, USA
| | - Marshall Stoller
- Department of Urology, University of California San Francisco, San Francisco, California, USA
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Okubo Y, Mohamed Suhaimy MSB, Hoang P, Chaplin C, Hicks C, Sturnieks D, Lord S. Training reactive balance using trips and slips in people with multiple sclerosis: a blinded randomised controlled trial. Mult Scler Relat Disord 2023; 73:104607. [PMID: 37004274 DOI: 10.1016/j.msard.2023.104607] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/26/2023] [Accepted: 03/04/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND This study examined the feasibility and efficacy of reactive balance training for improving stepping performance and reducing laboratory-induced falls in people with multiple sclerosis (MS). METHODS Thirty people diagnosed with MS (18-70 years) participated in a blinded randomized controlled trial (ACTRN12618001436268). The intervention group (n = 14) underwent two 50-minute sessions (total 100 min) that exposed them to a total of 24 trips and 24 slips in mixed order, over one week. The control group (n = 16) received sham training (stepping over foam obstacles) with equivalent dosage. The primary outcome was falls into the harness (defined as >30% body weight) when exposed to trips and slips that were unpredictable in timing, location and type at post-assessment. Physical and psychological measures were also assessed at baseline and post assessments. RESULTS The intervention and control groups completed 86% and 95% of the training protocols respectively. Incidence rate ratios (95% confidence intervals) of the intervention group relative to the control group were 0.57 (0.25, 1.26) for all falls, 0.80 (0.30, 2.11) for slip falls and 0.20 (0.04, 0.96) for trip falls in the laboratory. Kinematic analyses indicated the intervention participants improved dynamic stability, with higher centre of mass position and reduced trunk sway during recovery steps following a trip, compared to control. There were no significant differences between the intervention and control participants at post-assessment for other secondary outcome measures. CONCLUSIONS Reactive balance training improved trip-induced dynamic stability, limb support, trunk control and reduced falls in people with MS. More research is required to optimise the training protocol and determine whether the beneficial effects of reactive balance training can be retained long term and generalize to fewer daily-life falls.
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Clay SM, Evans A, Hicks C, Tsien F. Interpretation of next-generation sequencing results targeting pediatric sensorineural hearing loss. Am J Med Sci 2023. [DOI: 10.1016/s0002-9629(23)00519-0] [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: 01/28/2023]
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Neroda P, Hsieh MC, Wu XC, Cartmell K, Mayo R, Wu J, Hicks C, Zhang L. TS01.04 Racial Disparity in the Timely Treatment of Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2020.10.096] [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: 11/17/2022]
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Zhang L, Hsieh MC, Neroda P, Wu XC, Rennert L, Hicks C, Wu J, Gimbel R. TS01.05 Timely Treatment and Survival for Localized Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2020.10.097] [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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Menant JC, Meinrath D, Sturnieks DL, Hicks C, Lo J, Ratanapongleka M, Turner J, Migliaccio AA, Delbaere K, Titov N, Close JCT, Lord SR. Identifying Key Risk Factors for Dizziness Handicap in Middle-Aged and Older People. J Am Med Dir Assoc 2019; 21:344-350.e2. [PMID: 31631029 DOI: 10.1016/j.jamda.2019.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 05/10/2019] [Revised: 08/13/2019] [Accepted: 08/25/2019] [Indexed: 10/25/2022]
Abstract
OBJECTIVES More than 10% of people aged 50 years and older report dizziness. Despite available treatments, dizziness remains unresolved for many people due in part to suboptimal assessment. We aimed to identify factors associated with dizziness handicap in middle-aged and older people to identify targets for intervention to address this debilitating problem. A secondary aim was to determine whether factors associated with dizziness differed between middle-aged (<70 years) and older people (≥ 70 years). DESIGN Secondary analysis of baseline and prospective data from a randomized controlled trial. SETTING AND PARTICIPANTS In total, 305 individuals aged 50 to 92 years reporting significant dizziness in the past year were recruited from the community. METHODS Participants were classified as having either mild or no dizziness handicap (score <31) or moderate/severe dizziness handicap (score: 31‒100) based on the Dizziness Handicap Inventory. Participants completed health questionnaires and underwent assessments of psychological well-being, lying and standing blood pressure, vestibular function, strength, vision, proprioception, processing speed, balance, stepping, and gait. Participants reported dizziness episodes in monthly diaries for 6 months following baseline assessment. RESULTS Dizziness Handicap Inventory scores ranged from 0 to 86 with 95 participants (31%) reporting moderate/severe dizziness handicap. Many vestibular, cardiovascular, psychological, balance-related, and medical/medications measures were significantly associated with dizziness handicap severity and dizziness episode frequency. Binary logistic regression identified a positive Dix Hallpike/head-roll test for benign paroxysmal positional vertigo [odds ratio (OR) 2.09, 95% confidence interval (CI) (1.11‒3.97)], cardiovascular medication use [OR 1.90, 95% CI (1.09‒3.32)], high postural sway when standing on the floor with eyes closed (sway path ≥160 mm) [OR 2.97, 95% CI (1.73‒5.10)], and anxiety (Generalized Anxiety Disorder Scale 7-item Scale score ≥8) [OR 3.08, 95% CI (1.36‒6.94)], as significant and independent predictors of moderate/severe dizziness handicap. Participants aged 70 years and over were significantly more likely to report cardiovascular conditions than those aged less than 70 years old. CONCLUSIONS AND IMPLICATIONS Assessments of cardiovascular conditions and cardiovascular medication use, benign paroxysmal positional vertigo, anxiety, and postural sway identify middle-aged and older people with significant dizziness handicap. A multifactorial assessment including these factors may assist in tailoring evidence-based therapies to alleviate dizziness handicap in this group.
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Affiliation(s)
- Jasmine C Menant
- Neuroscience Research Australia, Sydney, New South Wales, Australia; School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Daniela Meinrath
- Department of Physiotherapy, Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Daina L Sturnieks
- Neuroscience Research Australia, Sydney, New South Wales, Australia; School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Cameron Hicks
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Joanne Lo
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | | | - Jessica Turner
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Americo A Migliaccio
- Neuroscience Research Australia, Sydney, New South Wales, Australia; Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Kim Delbaere
- Neuroscience Research Australia, Sydney, New South Wales, Australia; School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Nickolai Titov
- Department of Psychology, Macquarie University, Sydney, New South Wales, Australia
| | - Jacqueline C T Close
- Neuroscience Research Australia, Sydney, New South Wales, Australia; Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Stephen R Lord
- Neuroscience Research Australia, Sydney, New South Wales, Australia; School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia.
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Affiliation(s)
- M Leonardi
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit Sydney Medical School Nepean, University of Sydney, Nepean Hospital Sydney NSW Australia
| | - C Hicks
- Microbiome Research Centre St George and Sutherland Clinical School UNSW Sydney Kogarah NSW Australia
| | - F El‐Assaad
- Microbiome Research Centre St George and Sutherland Clinical School UNSW Sydney Kogarah NSW Australia
| | - E El‐Omar
- Microbiome Research Centre St George and Sutherland Clinical School UNSW Sydney Kogarah NSW Australia
| | - G Condous
- Acute Gynaecology, Early Pregnancy and Advanced Endosurgery Unit Sydney Medical School Nepean, University of Sydney, Nepean Hospital Sydney NSW Australia
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Okubo Y, Brodie MA, Sturnieks DL, Hicks C, Carter H, Toson B, Lord SR. Exposure to trips and slips with increasing unpredictability while walking can improve balance recovery responses with minimum predictive gait alterations. PLoS One 2018; 13:e0202913. [PMID: 30226887 PMCID: PMC6143193 DOI: 10.1371/journal.pone.0202913] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 08/10/2018] [Indexed: 01/19/2023] Open
Abstract
Introduction The primary study aim was to determine if repeated exposure to trips and slips with increasing unpredictability while walking can improve balance recovery responses when predictive gait alterations (e.g. slowing down) are minimised. The secondary aim was to determine if predictive gait alterations acquired through exposure to perturbations at a fixed condition would transfer to highly unpredictable conditions. Methods Ten young adults were instructed to step on stepping tiles adjusted to their usual step length and to a metronome adjusted to their usual cadence on a 10-m walkway. Participants were exposed to a total of 12 slips, 12 trips and 6 non-perturbed trials in three conditions: 1) right leg fixed location, 2) left leg fixed location and 3) random leg and location. Kinematics during non-perturbed trials and pre- and post-perturbation steps were analysed. Results Throughout the three conditions, participants walked with similar gait speed, step length and cadence(p>0.05). Participants’ extrapolated centre of mass (XCoM) was anteriorly shifted immediately before slips at the fixed location (p<0.01), but this predictive gait alteration did not transfer to random perturbation locations. Improved balance recovery from trips in the random location was indicated by increased margin of stability and step length during recovery steps (p<0.05). Changes in balance recovery from slips in the random location was shown by reduced backward XCoM displacement and reduced slip speed during recovery steps (p<0.05). Conclusions Even in the absence of most predictive gait alterations, balance recovery responses to trips and slips were improved through exposure to repeated unpredictable perturbations. A common predictive gait alteration to lean forward immediately before a slip was not useful when the perturbation location was unpredictable. Training balance recovery with unpredictable perturbations may be beneficial to fall avoidance in everyday life.
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Affiliation(s)
- Yoshiro Okubo
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Community Medicine and Public Health, University of New South Wales, Sydney, New South Wales, Australia
- The Japan Society for the Promotion of Science, Chiyoda, Tokyo, Japan
- * E-mail:
| | - Matthew A. Brodie
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Daina L. Sturnieks
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Cameron Hicks
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Hilary Carter
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Barbara Toson
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Stephen R. Lord
- Falls, Balance and Injury Research Centre, Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Community Medicine and Public Health, University of New South Wales, Sydney, New South Wales, Australia
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Tarkenton T, Bunt S, Hicks C, Didehbani N, Cullum M, Silver C. A - 70Differences in Recovery Between Adolescents with and Without ADHD After Sport Concussion. Arch Clin Neuropsychol 2018. [DOI: 10.1093/arclin/acy061.70] [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: 11/12/2022] Open
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Yang M, Khachigian LM, Hicks C, Chesterman CN, Chong BH. Identification of PDGF Receptors on Human Megakaryocytes and Megakaryocytic Cell Lines. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1657648] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryPlatelet-derived growth factor (PDGF) is a potent chemotactic and mitogenic factor implicated to play important roles in a variety of normal and pathophysiologic settings. We investigated PDGF receptor expression on human megakaryocytes and several megakaryocytic cell lines (CHRF, DAMI, Meg-01, M-07e) using enzyme-linked immunosorbent assay (ELISA), flow cytometry and immunocytochemical staining. Both PDGF receptor subtypes were identified on CHRF, DAMI, and Meg-01 cells by ELISA; PDGF beta-receptor levels exceeded alpha-receptor levels. Flow cytometry revealed that beta-receptor levels on CHRF and DAMI cells exceeded those on Meg-01 cells, and that M-07e expressed neither receptor. Immunocytochemical staining confirmed these findings and determined that bone marrow megakaryocytes also expressed PDGF receptors. Exposure of megakaryocytes to PDGF-BB dramatically induced the expression of the immediate-early gene, c-fos, within 30 min. Moreover, PDGF-BB significantly stimulated CHRF proliferation and colony formation. The present study demonstrates the presence of functional PDGF receptors on human megakaryocytes and their ability to mediate a mitogenic response.
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Affiliation(s)
- M Yang
- The Centre for Thrombosis and Vascular Research, School of Pathology, The University of New South Wales and Department of Haematology, The Prince of Wales Hospital, Sydney, Australia
| | - L M Khachigian
- The Centre for Thrombosis and Vascular Research, School of Pathology, The University of New South Wales and Department of Haematology, The Prince of Wales Hospital, Sydney, Australia
| | - C Hicks
- The Centre for Thrombosis and Vascular Research, School of Pathology, The University of New South Wales and Department of Haematology, The Prince of Wales Hospital, Sydney, Australia
| | - C N Chesterman
- The Centre for Thrombosis and Vascular Research, School of Pathology, The University of New South Wales and Department of Haematology, The Prince of Wales Hospital, Sydney, Australia
| | - B H Chong
- The Centre for Thrombosis and Vascular Research, School of Pathology, The University of New South Wales and Department of Haematology, The Prince of Wales Hospital, Sydney, Australia
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14
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Menant JC, Migliaccio AA, Sturnieks DL, Hicks C, Lo J, Ratanapongleka M, Turner J, Delbaere K, Titov N, Meinrath D, McVeigh C, Close JCT, Lord SR. Reducing the burden of dizziness in middle-aged and older people: A multifactorial, tailored, single-blind randomized controlled trial. PLoS Med 2018; 15:e1002620. [PMID: 30040818 PMCID: PMC6057644 DOI: 10.1371/journal.pmed.1002620] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Accepted: 06/21/2018] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Dizziness is common among older people and is associated with a cascade of debilitating symptoms, such as reduced quality of life, depression, and falls. The multifactorial aetiology of dizziness is a major barrier to establishing a clear diagnosis and offering effective therapeutic interventions. Only a few multidisciplinary interventions of dizziness have been conducted to date, all of a pilot nature and none tailoring the intervention to the specific causes of dizziness. Here, we aimed to test the hypothesis that a multidisciplinary dizziness assessment followed by a tailored multifaceted intervention would reduce dizziness handicap and self-reported dizziness as well as enhance balance and gait in people aged 50 years and over with dizziness symptoms. METHODS AND FINDINGS We conducted a 6-month, single-blind, parallel-group randomized controlled trial in community-living people aged 50 years and over who reported dizziness in the past year. We excluded individuals currently receiving treatment for their dizziness, those with degenerative neurological conditions including cognitive impairment, those unable to walk 20 meters, and those identified at baseline assessment with conditions that required urgent treatment. Our team of geriatrician, vestibular neuroscientist, psychologist, exercise physiologist, study coordinator, and baseline assessor held case conferences fortnightly to discuss and recommend appropriate therapy (or therapies) for each participant, based on their multidisciplinary baseline assessments. A total of 305 men and women aged 50 to 92 years (mean [SD] age: 67.8 [8.3] years; 62% women) were randomly assigned to either usual care (control; n = 151) or to a tailored, multifaceted intervention (n = 154) comprising one or more of the following: a physiotherapist-led vestibular rehabilitation programme (35% [n = 54]), an 8-week internet-based cognitive-behavioural therapy (CBT) (19% [n = 29]), a 6-month Otago home-based exercise programme (24% [n = 37]), and/or medical management (40% [n = 62]). We were unable to identify a cause of dizziness in 71 participants (23% of total sample). Primary outcome measures comprised dizziness burden measured with the Dizziness Handicap Inventory (DHI) score, frequency of dizziness episodes recorded with monthly calendars over the 6-month follow-up, choice-stepping reaction time (CSRT), and gait variability. Data from 274 participants (90%; 137 per group) were included in the intention-to-treat analysis. At trial completion, the DHI scores in the intervention group (pre and post mean [SD]: 25.9 [19.2] and 20.4 [17.7], respectively) were significantly reduced compared with the control group (pre and post mean [SD]: 23.0 [15.8] and 21.8 [16.4]), when controlling for baseline scores (mean [95% CI] difference between groups [baseline adjusted]: -3.7 [-6.2 to -1.2]; p = 0.003). There were no significant between-group differences in dizziness episodes (relative risk [RR] [95% CI]: 0.87 [0.65 to 1.17]; p = 0.360), CSRT performance (mean [95% CI] difference between groups [baseline adjusted]: -15 [-40 to 10]; p = 0.246), and step-time variability during gait (mean [95% CI] difference between groups [baseline adjusted]: -0.001 [-0.002 to 0.001]; p = 0.497). No serious intervention-related adverse events occurred. Study limitations included the low initial dizziness severity of the participants and the only fair uptake of the falls clinic (medical management) and the CBT interventions. CONCLUSIONS A multifactorial tailored approach for treating dizziness was effective in reducing dizziness handicap in community-living people aged 50 years and older. No difference was seen on the other primary outcomes. Our findings therefore support the implementation of individualized, multifaceted evidence-based therapies to reduce self-perceived disability associated with dizziness in middle-aged and older people. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry ACTRN12612000379819.
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Affiliation(s)
- Jasmine C. Menant
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Americo A. Migliaccio
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, New South Wales, Australia
| | - Daina L. Sturnieks
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Medical Sciences, University of New South Wales, Sydney, New South Wales, Australia
| | - Cameron Hicks
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Joanne Lo
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | | | - Jessica Turner
- Neuroscience Research Australia, Sydney, New South Wales, Australia
| | - Kim Delbaere
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia
| | - Nickolai Titov
- Department of Psychology, Macquarie University, Sydney, New South Wales, Australia
| | - Daniela Meinrath
- Department of Physiotherapy, Prince of Wales Hospital, Sydney, New South Wales, Australia
| | - Catherine McVeigh
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Jacqueline C. T. Close
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- Prince of Wales Clinical School, University of New South Wales, Sydney, New South Wales, Australia
| | - Stephen R. Lord
- Neuroscience Research Australia, Sydney, New South Wales, Australia
- School of Public Health and Community Medicine, University of New South Wales, Sydney, New South Wales, Australia
- * E-mail:
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15
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Umberham B, Hedin R, Detweiler B, Kollmorgen L, Hicks C, Vassar M. Heterogeneity of studies in anesthesiology systematic reviews: a meta-epidemiological review and proposal for evidence mapping. Br J Anaesth 2017; 119:874-884. [DOI: 10.1093/bja/aex251] [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] [Accepted: 07/04/2017] [Indexed: 01/25/2023] Open
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16
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Menant JC, Migliaccio AA, Hicks C, Lo J, Meinrath D, Ratanapongleka M, Turner J, Sturnieks DL, Delbaere K, Titov N, McVeigh C, Close JCT, Lord SR. Tailored multifactorial intervention to improve dizziness symptoms and quality of life, balance and gait in dizziness sufferers aged over 50 years: protocol for a randomised controlled trial. BMC Geriatr 2017; 17:56. [PMID: 28202037 PMCID: PMC5312521 DOI: 10.1186/s12877-017-0450-3] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Accepted: 02/11/2017] [Indexed: 11/24/2022] Open
Abstract
Background Dizziness is a frequently reported symptom in older people that can markedly impair quality of life. This manuscript presents the protocol for a randomised controlled trial, which has the main objective of determining the impact of comprehensive assessment followed by a tailored multifaceted intervention in reducing dizziness episodes and symptoms, improving associated impairments to balance and gait and enhancing quality of life in older people with self-reported significant dizziness. Methods Three hundred people aged 50 years or older, reporting significant dizziness in the past year will be recruited to participate in the trial. Participants allocated to the intervention group will receive a tailored, multifaceted intervention aimed at treating their dizziness symptoms over a 6 month trial period. Control participants will receive usual care. The primary outcome measures will be the frequency and duration of dizziness episodes, dizziness symptoms assessed with the Dizziness Handicap Inventory, choice-stepping reaction time and step time variability. Secondary outcomes will include health-related quality of life measures, depression and anxiety symptoms, concern about falling, balance and risk of falls assessed with the physiological fall risk assessment. Analyses will be by intention-to-treat. Discussion The study will determine the effectiveness of comprehensive assessment, combined with a tailored, multifaceted intervention on dizziness episodes and symptoms, balance and gait control and quality of life in older people experiencing dizziness. Clinical implications will be evident for the older population for the diagnosis and treatment of dizziness. Trial registration The study is registered with the Australia New Zealand Clinical Trials Registry ACTRN12612000379819.
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Affiliation(s)
- Jasmine C Menant
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia.,School of Public Health & Community Medicine, University of New South Wales, Sydney, Australia
| | - Americo A Migliaccio
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Cameron Hicks
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Joanne Lo
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Daniela Meinrath
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia.,School of Public Health & Community Medicine, University of New South Wales, Sydney, Australia
| | - Mayna Ratanapongleka
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Jessica Turner
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Daina L Sturnieks
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia
| | - Kim Delbaere
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia.,School of Public Health & Community Medicine, University of New South Wales, Sydney, Australia
| | - Nickolai Titov
- Department of Psychology, Macquarie University, Sydney, Australia
| | | | - Jacqueline C T Close
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia.,Prince of Wales Clinical School, Sydney, NSW, Australia
| | - Stephen R Lord
- Neuroscience Research Australia, University of New South Wales, Sydney, Australia. .,School of Public Health & Community Medicine, University of New South Wales, Sydney, Australia.
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17
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Tai F, Li JW, Sun J, Zheng MH, Wink J, Basta M, Fischer J, Kovach S, Tall J, Håkanson BS, Pålstedt J, Thorell A, Huntington C, Cox T, Blair L, Lincourt A, Prasad T, Kercher K, Heniford BT, Augenstein V, Strömberg H, Hellman P, Sandblom G, Gunnarsson U, Hope W, Bringman S, Chudy M, Romanowski C, Jones P, Jacombs A, Roussos E, Read J, Dardano A, Boesel T, Edye M, Ibrahim N, Lyo V, Tufaga M, Shin UK, Primus F, Harris H, Iesalnieks I, Di Cerbo F, Baladov M, Ikhlawi K, Azoury S, Rodriguez-Unda N, Soares K, Hicks C, Baltodano P, Poruk K, Hu L, Cooney C, Cornell P, Burce K, Eckhauser F, Garvey E, Zuhlke T, Jaroszewski D, Egan J, Jamshidi R, Graziano K, McMahon L, Rodriquez-Unda N, Fattori L, Leva A, Coppola S, Gianotti L, Baccay F, Alemayehu H, Singh J, Lo I, Amin A, Harrington A, Benvenuti H, Cho D, George F, Cate S. Abdominal Wall Miscellaneous. Hernia 2015; 19 Suppl 1:S5-S12. [PMID: 26518860 DOI: 10.1007/bf03355319] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- F Tai
- Department of Surgery, Cathay General Hospital, Taipei, Taiwan
| | - J W Li
- Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | | | | | - J Wink
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - M Basta
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - J Fischer
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - S Kovach
- Division of Plastic Surgery, University of Pennsylvania, Philadelphia, USA
| | - J Tall
- Department of Clinical Science, Danderyds Hospital & Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm, Sweden.,Department of Surgery, Norrtälje Hospital, Stockholm, Sweden
| | - B S Håkanson
- Department of Clinical Science, Danderyds Hospital & Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm, Sweden
| | - J Pålstedt
- Department of Clinical Science, Danderyds Hospital & Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm, Sweden
| | - A Thorell
- Department of Clinical Science, Danderyds Hospital & Department of Surgery, Ersta Hospital, Karolinska Institutet, Stockholm, Sweden
| | - C Huntington
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - T Cox
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - L Blair
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - A Lincourt
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - T Prasad
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - K Kercher
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - B T Heniford
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | - V Augenstein
- Department of GI and Minimally Invasive Surgery, Carolinas Medical Center, Charlotte, USA
| | | | | | - G Sandblom
- Karolinska Institutet, Stockholm, Sweden
| | | | - W Hope
- Dept of Surgery, New Hanover Regional Medical Center, Wilmington, USA
| | - S Bringman
- Södertälje Hospital, Dept of Surgery, Karolinska Institutet, Södertälje, Sweden
| | - M Chudy
- Dept of Surgery, Ayr Hospital, Ayr, UK
| | - C Romanowski
- Clinical Development, ETHICON, Johnson & Johnson Global Surgery Group, Somerville, USA
| | - P Jones
- Clinical Development, ETHICON, Johnson & Johnson Global Surgery Group, Livingston, UK
| | - A Jacombs
- Australian School of Advanced Medicine, Macquarie University, Sydney, Australia
| | - E Roussos
- Macquarie University Hospital, Sydney, Australia
| | - J Read
- Castlereagh Imaging, Sydney, Australia
| | - A Dardano
- Boca Raton Regional Hospital, Florida, USA
| | - T Boesel
- Macquarie University Hospital, Sydney, Australia.,Univeristy of Western Sydney, Sydney, Australia
| | - M Edye
- Macquarie University Hospital, Sydney, Australia
| | - N Ibrahim
- Macquarie University Hospital, Sydney, Australia
| | - V Lyo
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - M Tufaga
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - U K Shin
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - F Primus
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | - H Harris
- Division of General Surgery, University of California San Francisco, San Francisco, USA
| | | | | | - M Baladov
- Marienhospital Gelsenkirchen, Gelsenkirchen, Germany
| | - K Ikhlawi
- Marienhospital Gelsenkirchen, Gelsenkirchen, Germany
| | - S Azoury
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA
| | - N Rodriguez-Unda
- Department of Plastic and Reconstructive Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicin, Baltimore, USA
| | - K Soares
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - C Hicks
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - P Baltodano
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - K Poruk
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA
| | - L Hu
- School of Medicine, Johns Hopkins University, Baltimore, USA
| | - C Cooney
- Department of Plastic and Reconstructive Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicin, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - P Cornell
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - K Burce
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,Department of Plastic and Reconstructive Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicin, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | - F Eckhauser
- Department of Surgery, The Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, USA.,School of Medicine, Johns Hopkins University, Baltimore, USA
| | | | | | | | - J Egan
- Phoenix Children's Hospital, Phoenix, USA
| | - R Jamshidi
- Phoenix Children's Hospital, Phoenix, USA
| | - K Graziano
- Phoenix Children's Hospital, Phoenix, USA
| | - L McMahon
- Phoenix Children's Hospital, Phoenix, USA
| | | | - L Fattori
- Department of Surgery, AO San Gerardo, Monza, Italy
| | | | | | | | - F Baccay
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - H Alemayehu
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - J Singh
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - I Lo
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - A Amin
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - A Harrington
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - H Benvenuti
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - D Cho
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - F George
- Department of General Surgery, New York Medical College, Valhalla, USA
| | - S Cate
- Department of General Surgery, New York Medical College, Valhalla, USA
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18
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Sulé-Suso J, Finney S, Bisson J, Hammersley S, Jassel S, Knight R, Hicks C, Sargeant S, Lam KP, Belcher J, Collins D, Bhana R, Adab F, O'Donovan C, Moloney A. Pilot study on virtual imaging for patient information on radiotherapy planning and delivery. Radiography (Lond) 2015. [DOI: 10.1016/j.radi.2015.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Hicks C, Danesh M, Brown B, Tyson M, Cyna A. The Tunstall manoeuvre for rapid onset spinal anaesthesia for caesarean section-lost but not forgotten. Anaesth Intensive Care 2015; 43:535-536. [PMID: 26099778] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Affiliation(s)
| | | | | | | | - A Cyna
- Adelaide, South Australia
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20
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Hicks C, Ramos L, Reekie T, Misagh GH, Narlawar R, Kassiou M, McGregor IS. Body temperature and cardiac changes induced by peripherally administered oxytocin, vasopressin and the non-peptide oxytocin receptor agonist WAY 267,464: a biotelemetry study in rats. Br J Pharmacol 2014; 171:2868-87. [PMID: 24641248 DOI: 10.1111/bph.12613] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [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: 10/05/2013] [Revised: 01/14/2014] [Accepted: 01/26/2014] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND AND PURPOSE There is current interest in oxytocin (OT) as a possible therapeutic in psychiatric disorders. However, the usefulness of OT may be constrained by peripheral autonomic effects, which may involve an action at both OT and vasopressin V1A receptors. Here, we characterized the cardiovascular and thermoregulatory effects of OT, vasopressin (AVP) and the non-peptide OT receptor agonist WAY 267,464 in rats, and assessed the relative involvement of the OT and V1A receptors in these effects. EXPERIMENTAL APPROACH Biotelemetry in freely moving male Wistar rats was used to examine body temperature and heart rate after OT (0.01 - 1 mg kg(-1); i.p.), AVP (0.001 - 0.1 mg kg(-1); i.p.) or WAY 267,464 (10 and 100 mg kg(-1); i.p.). The actions of the OT receptor antagonist Compound 25 (C25, 5 and 10 mg kg(-1)) and V1A receptor antagonist SR49059 (1 and 10 mg kg(-1)) were studied, as well as possible V1A receptor antagonist effects of WAY 267,464. KEY RESULTS OT and AVP dose-dependently reduced body temperature and heart rate. WAY 267,464 had similar, but more modest, effects. SR49059, but not C25, prevented the hypothermia and bradycardia induced by OT and AVP. WAY 267,464 (100 mg·kg(-1)) prevented the effects of OT, and to some extent AVP. CONCLUSIONS AND IMPLICATIONS Peripherally administered OT and AVP have profound cardiovascular and thermoregulatory effects that appear to principally involve the V1A receptor rather than the OT receptor. Additionally, WAY 267,464 is not a simple OT receptor agonist, as it has functionally relevant V1A antagonist actions.
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Affiliation(s)
- C Hicks
- School of Psychology, University of Sydney, Sydney, NSW, Australia
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21
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Hicks C. Sustainable and healthy lifestyles towards 2050; lessons learned from SPREAD 2050. Eur J Public Health 2013. [DOI: 10.1093/eurpub/ckt126.223] [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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22
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Yun J, Pannuti A, Espinoza I, Zhu H, Hicks C, Zhu X, Caskey M, Rizzo P, D'Souza G, Backus K, Denning MF, Coon J, Sun M, Bresnick EH, Osipo C, Wu J, Strack PR, Tonetti DA, Miele L. Crosstalk between PKCα and Notch-4 in endocrine-resistant breast cancer cells. Oncogenesis 2013; 2:e60. [PMID: 23917222 PMCID: PMC3759125 DOI: 10.1038/oncsis.2013.26] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2012] [Revised: 06/14/2013] [Accepted: 06/19/2013] [Indexed: 12/23/2022] Open
Abstract
The Notch pathway is functionally important in breast cancer. Notch-1 has been reported to maintain an estrogen-independent phenotype in estrogen receptor α (ERα)+ breast cancer cells. Notch-4 expression correlates with Ki67. Notch-4 also plays a key role in breast cancer stem-like cells. Estrogen-independent breast cancer cell lines have higher Notch activity than estrogen-dependent lines. Protein kinase Cα (PKCα) overexpression is common in endocrine-resistant breast cancers and promotes tamoxifen (TAM)-resistant growth in breast cancer cell lines. We tested whether PKCα overexpression affects Notch activity and whether Notch signaling contributes to endocrine resistance in PKCα-overexpressing breast cancer cells.Analysis of published microarray data from ERα+ breast carcinomas shows that PKCα expression correlates strongly with Notch-4. Real-time reverse transcription PCR and immunohistochemistry on archival specimens confirmed this finding. In a PKCα-overexpressing, TAM-resistant T47D model, PKCα selectively increases Notch-4, but not Notch-1, expression in vitro and in vivo. This effect is mediated by activator protein-1 (AP-1) occupancy of the Notch-4 promoter. Notch-4 knockdown inhibits estrogen-independent growth of PKCα-overexpressing T47D cells, whereas Notch-4IC expression stimulates it. Gene expression profiling shows that multiple genes and pathways associated with endocrine resistance are induced in Notch-4IC- and PKCα-expressing T47D cells. In PKCα-overexpressing T47D xenografts, an orally active γ-secretase inhibitor at clinically relevant doses significantly decreased estrogen-independent tumor growth, alone and in combination with TAM. In conclusion, PKCα overexpression induces Notch-4 through AP-1. Notch-4 promotes estrogen-independent, TAM-resistant growth and activates multiple pathways connected with endocrine resistance and chemoresistance. Notch inhibitors should be clinically evaluated in PKCα- and Notch-4-overexpressing, endocrine-resistant breast cancers.
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Affiliation(s)
- J Yun
- Cardinal Bernardin Cancer Center and Department of Pathology, Loyola University Chicago, Maywood, IL, USA
| | - A Pannuti
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - I Espinoza
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - H Zhu
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - C Hicks
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - X Zhu
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - M Caskey
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - P Rizzo
- Cardinal Bernardin Cancer Center and Department of Pathology, Loyola University Chicago, Maywood, IL, USA
| | - G D'Souza
- Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - K Backus
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
| | - M F Denning
- Cardinal Bernardin Cancer Center and Department of Pathology, Loyola University Chicago, Maywood, IL, USA
| | - J Coon
- Department of Pathology, Rush University Chicago, Chicago, IL, USA
| | - M Sun
- Department of Cancer Biology, University of Chicago, Chicago, IL, USA
| | - E H Bresnick
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, USA
| | - C Osipo
- Cardinal Bernardin Cancer Center and Department of Pathology, Loyola University Chicago, Maywood, IL, USA
| | - J Wu
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, USA
| | - P R Strack
- Merck Research Laboratories, Boston, MA, USA
| | - D A Tonetti
- Department of Biopharmaceutical Sciences, University of Illinois at Chicago, Chicago, IL, USA
| | - L Miele
- Cancer Institute, University of Mississippi Medical Center, Jackson, MS, USA
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23
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Hoit G, Hinkewich C, Tiao J, Porgo V, Moore L, Moore L, Tiao J, Wang C, Moffatt B, Wheeler S, Gillman L, Bartens K, Lysecki P, Pallister I, Patel S, Bradford P, Bradford P, Kidane B, Holmes A, Trajano A, March J, Lyons R, Kao R, Rezende-Neto J, Leblanc Y, Rezende-Neto J, Vogt K, Alzaid S, Jansz G, Andrusiek D, Andrusiek D, Bailey K, Livingston M, Calthorpe S, Hsu J, Lubbert P, Boitano M, Leeper W, Williamson O, Reid S, Alonazi N, Lee C, Rezende-Neto J, Aleassa E, Jennings P, Jennings P, Mador B, Hoffman K, Riley J, Vu E, Alburakan A, Alburakan A, Alburakan A, Mckee J, Bobrovitz N, Gabbe B, Gabbe B, Hodgkinson J, Hodgkinson J, Ali J, Ali J, Grant M, Roberts D, Holodinsky J, Cooper C, Santana M, Kruger K, Hodgkinson J, Waggott M, Da Luz L, Banfield J, Santana M, Dorigatti A, Birn K, Bobrovitz N, Zakirova R, Davies D, Das D, Gamme G, Pervaiz F, Almarhabi Y, Brainard A, Brown R, Bell N, Bell N, Jowett H, Jowett H, Bressan S, Hogan A, Watson I, Woodford S, Hogan A, Boulay R, Watson I, Howlett M, Atkinson P, Chesters A, Hamadani F, Atkinson P, Azzam M, Fraser J, Doucet J, Atkinson P, Muakkassa F, Sathivel N, Chadi S, Joseph B, Takeuchi L, Bradley N, Al Bader B, Kidane B, Harrington A, Nixon K, Veigas P, Joseph B, O’Keeffe T, Bracco D, Rezende-Neto J, Azzam M, Lin Y, Bailey K, Bracco D, Nash N, Alhabboubi M, Slobogean G, Spicer J, Heidary B, Joos E, Berg R, Berg R, Sankarankutty A, Zakrison T, Babul S, Lockhart S, Faux S, Jackson A, Lee T, Bailey K, Pemberton J, Green R, Tallon J, Moore L, Turgeon A, Boutin A, Moore L, Reinartz D, Lapointe G, Turgeon A, Stelfox H, Turgeon A, Nathens A, Neveu X, Stelfox H, Turgeon A, Nathens A, Neveu X, Moore L, Turgeon A, Bratu I, Gladwin C, Voaklander D, Lewis M, Vogt K, Eckert K, Williamson J, Stewart TC, Parry N, Gray D, L’Heureux R, Ziesmann M, Kortbeek J, Brindley P, Hicks C, Fata P, Engels P, Ball C, Paton-Gay D, Widder S, Vogt K, Hernandez-Alejandro R, Gray D, Vanderbeek L, Forrokhyar F, Anatharajah R, Howatt N, Lamb S, Sne N, Kahnamoui K, Lyons R, Walters A, Brooks C, Pinder L, Rahman S, Walters A, Kidane B, Parry N, Donnelly E, Lewell M, Mellow R, Hedges C, Morassutti P, Bulatovic R, Morassutti P, Galbraith E, McKenzie S, Bradford D, Lewell M, Peddle M, Dukelow A, Eby D, McLeod S, Bradford P, Stewart TC, Parry N, Williamson O, Fraga G, Pereira B, Sareen J, Doupe M, Gawaziuk J, Chateau D, Logsetty S, Pallister I, Lewis J, O’Doherty D, Hopkins S, Griffiths S, Palmer S, Gabbe B, Xu X, Martin C, Xenocostas A, Parry N, Mele T, Rui T, Abreu E, Andrade M, Cruz F, Pires R, Carreiro P, Andrade T, Lampron J, Balaa F, Fortuna R, Issa H, Dias P, Marques M, Fernandes T, Sousa T, Inaba K, Smith J, Okoye O, Joos E, Shulman I, Nelson J, Parry N, Rhee P, Demetriades D, Ostrofsky R, Butler-Laporte G, Chughtai T, Khwaja K, Fata P, Mulder D, Razek T, Deckelbaum D, Bailey K, Pemberton J, Evans D, Anton H, Wei J, Randall E, Sobolev B, Scott BB, van Heest R, Frankfurter C, Pemberton J, McKerracher S, Stewart TC, Merritt N, Barber L, Kimmel L, Hodgson C, Webb M, Holland A, Gruen R, Harrison K, Hwang M, Hsee L, Civil I, Muizelaar A, Baillie F, Leeper T, Stewart TC, Gray D, Parry N, Sutherland A, Hart M, Gabbe B, Tuma F, Coates A, Farrokhyar F, Faidi S, Gastaldo F, Paskar D, Reid S, Faidi S, Petrisor B, Bhandari M, Loh WL, Ho C, Chong C, Rodrigues G, Gissoni M, Martins M, Andrade M, Cunha-Melo J, Rizoli S, Abu-Zidan F, Cameron P, Bernard S, Walker T, Jolley D, Fitzgerald M, Masci K, Gabbe B, Simpson P, Smith K, Cox S, Cameron P, Evans D, West A, Barratt L, Rozmovits L, Livingstone B, Vu M, Griesdale D, Schlamp R, Wand R, Alhabboubi M, Alrowaili A, Alghamdi H, Fata P, Essbaiheen F, Alhabboubi M, Fata P, Essbaiheen F, Chankowsky J, Razek T, Stephens M, Vis C, Belton K, Kortbeek J, Bratu I, Dufresne B, Guilfoyle J, Ibbotson G, Martin K, Matheson D, Parks P, Thomas L, Kirkpatrick A, Santana M, Kline T, Kortbeek J, Stelfox H, Lyons R, Macey S, Fitzgerald M, Judson R, Cameron P, Sutherland A, Hart M, Morgan M, McLellan S, Wilson K, Cameron P, Sorvari A, Chaudhry Z, Khawaja K, Ali A, Akhtar J, Zubair M, Nickow J, Sorvari A, Holodinsky J, Jaeschke R, Ball C, Blaser AR, Starkopf J, Zygun D, Kirkpatrick A, Roberts D, Ball C, Blaser AR, Starkopf J, Zygun D, Jaeschke R, Kirkpatrick A, Santana M, Stelfox H, Stelfox H, Rizoli S, Tanenbaum B, Stelfox H, Redondano BR, Jimenez LS, Zago T, de Carvalho RB, Calderan TA, Fraga G, Campbell S, Widder S, Paton-Gay D, Engels P, Ferri M, Santana M, Kline T, Kortbeek J, Stelfox H, Nathens A, Lashoher A, McFarlan A, Ahmed N, Booy J, McDowell D, Nasr A, Wales P, Roberts D, Mercado M, Vis C, Kortbeek J, Kirkpatrick A, Lall R, Stelfox H, Ball C, Niven D, Dixon E, Stelfox H, Kirkpatrick A, Kaplan G, Hameed M, Ball C, Qadura M, Sne N, Reid S, Coates A, Faidi S, Veenstra J, Hennecke P, Gardner R, Appleton L, Sobolev B, Simons R, van Heest R, Hameed M, Sobolev B, Simons R, van Heest R, Hameed M, Palmer C, Bevan C, Crameri J, Palmer C, Hogan D, Grealy L, Bevan C, Palmer C, Jowett H, Boulay R, Chisholm A, Beairsto E, Goulette E, Martin M, Benjamin S, Boulay R, Watson I, Boulay R, Watson I, Watson I, Savoie J, Benjamin S, Martin M, Hogan A, Woodford S, Benjamin S, Chisholm A, Ondiveeran H, Martin M, Atkinson P, Doody K, Fraser J, Leblanc-Duchin D, Strack B, Naveed A, vanRensburg L, Madan R, Atkinson P, Boulva K, Deckelbaum D, Khwaja K, Fata P, Razek T, Fraser J, Verheul G, Parks A, Milne J, Nemeth J, Fata P, Correa J, Deckelbaum D, Bernardin B, Al Bader B, Khwaja K, Razek T, Atkinson P, Benjamin S, Sproul E, Mehta A, Galarneau M, Mahadevan P, Bansal V, Dye J, Hollingsworth-Fridlund P, Stout P, Potenza B, Coimbra R, Madan R, Marley R, Salvator A, Pisciotta D, Bridge J, Lin S, Ovens H, Nathens A, Abdo H, Dencev-Bihari R, Parry N, Lawendy A, Ibrahim-Zada I, Pandit V, Tang A, O’Keeffe T, Wynne J, Gries L, Friese R, Rhee P, Hameed M, Simons R, Taulu T, Wong H, Saleem A, Azzam M, Boulva K, Razek T, Khwaja K, Mulder D, Deckelbaum D, Fata P, Plourde M, Chadi S, Forbes T, Parry N, Martin G, Gaunt K, Bandiera G, Bawazeer M, MacKinnon D, Ahmed N, Spence J, Sankarankutty A, Nascimento B, Rizoli S, Ibrahim-Zada I, Aziz H, Tang A, Friese R, Wynne J, O’keeffe T, Vercruysse G, Kulvatunyou N, Rhee P, Sakles J, Mosier J, Wynne J, Kulvatunyou N, Tang A, Joseph B, Rhee P, Khwaja K, Fata P, Deckelbaum D, Razek T, Dias P, Issa H, Fortuna R, Sousa T, Abreu E, Bracco D, Khwaja K, Fata P, Deckelbaum D, Razek T, Bracco D, Khwaja K, Fata P, Deckelbaum D, Razek T, Norman D, Li J, Pemberton J, Al-Oweis J, Khwaja K, Fata P, Deckelbaum D, Razek T, Albuz O, Karamanos E, Vogt K, Okoye O, Talving P, Inaba K, Demetriades D, Elhusseini M, Sudarshan M, Deckelbaum D, Fata P, Razek T, Khwaja K, MacPherson C, Sun T, Pelletier M, Hameed M, Khalil MA, Azzam M, Valenti D, Fata P, Deckelbaum D, Razek T, Brown R, Simons R, Evans D, Hameed M, Inaba K, Vogt K, Okoye O, Gelbard R, Moe D, Grabo D, Demetriades D, Inaba K, Karamanos E, Okoye O, Talving P, Demetriades D, Inaba K, Karamanos E, Pasley J, Teixeira P, Talving P, Demetriades D, Fung S, Alababtain I, Brnjac E, Luz L, Nascimento B, Rizoli S, Parikh P, Proctor K, Murtha M, Schulman C, Namias N, Goldman R, Pike I, Korn P, Flett C, Jackson T, Keith J, Joseph T, Giddins E, Ouellet J, Cook M, Schreiber M, Kortbeek J. Trauma Association of Canada (TAC) Annual Scientific Meeting. The Westin Whistler Resort & Spa, Whistler, BC, Thursday, Apr. 11 to Saturday, Apr. 13, 2013Testing the reliability of tools for pediatric trauma teamwork evaluation in a North American high-resource simulation settingThe association of etomidate with mortality in trauma patientsDefinition of isolated hip fractures as an exclusion criterion in trauma centre performance evaluations: a systematic reviewEstimation of acute care hospitalization costs for trauma hospital performance evaluation: a systematic reviewHospital length of stay following admission for traumatic injury in Canada: a multicentre cohort studyPredictors of hospital length of stay following traumatic injury: a multicentre cohort studyInfluence of the heterogeneity in definitions of an isolated hip fracture used as an exclusion criterion in trauma centre performance evaluations: a multicentre cohort studyPediatric trauma, advocacy skills and medical studentsCompliance with the prescribed packed red blood cell, fresh frozen plasma and platelet ratio for the trauma transfusion pathway at a level 1 trauma centreEarly fixed-wing aircraft activation for major trauma in remote areasDevelopment of a national, multi-disciplinary trauma crisis resource management curriculum: results from the pilot courseThe management of blunt hepatic trauma in the age of angioembolization: a single centre experienceEarly predictors of in-hospital mortality in adult trauma patientsThe impact of open tibial fracture on health service utilization in the year preceding and following injuryA systematic review and meta-analysis of the efficacy of red blood cell transfusion in the trauma populationSources of support for paramedics managing work-related stress in a Canadian EMS service responding to multisystem trauma patientsAnalysis of prehospital treatment of pain in the multisystem trauma patient at a community level 2 trauma centreIncreased mortality associated with placement of central lines during trauma resuscitationChronic pain after serious injury — identifying high risk patientsEpidemiology of in-hospital trauma deaths in a Brazilian university teaching hospitalIncreased suicidality following major trauma: a population-based studyDevelopment of a population-wide record linkage system to support trauma researchInduction of hmgb1 by increased gut permeability mediates acute lung injury in a hemorrhagic shock and resuscitation mouse modelPatients who sustain gunshot pelvic fractures are at increased risk for deep abscess formation: aggravated by rectal injuryAre we transfusing more with conservative management of isolated blunt splenic injury? A retrospective studyMotorcycle clothesline injury prevention: Experimental test of a protective deviceA prospective analysis of compliance with a massive transfusion protocol - activation alone is not enoughAn evaluation of diagnostic modalities in penetrating injuries to the cardiac box: Is there a role for routine echocardiography in the setting of negative pericardial FAST?Achievement of pediatric national quality indicators — an institutional report cardProcess mapping trauma care in 2 regional health authorities in British Columbia: a tool to assist trauma sys tem design and evaluationPatient safety checklist for emergency intubation: a systematic reviewA standardized flow sheet improves pediatric trauma documentationMassive transfusion in pediatric trauma: a 5-year retrospective reviewIs more better: Does a more intensive physiotherapy program result in accelerated recovery for trauma patients?Trauma care: not just for surgeons. Initial impact of implementing a dedicated multidisciplinary trauma team on severely injured patientsThe role of postmortem autopsy in modern trauma care: Do we still need them?Prototype cervical spine traction device for reduction stabilization and transport of nondistraction type cervical spine injuriesGoing beyond organ preservation: a 12-year review of the beneficial effects of a nonoperative management algorithm for splenic traumaAssessing the construct validity of a global disability measure in adult trauma registry patientsThe mactrauma TTL assessment tool: developing a novel tool for assessing performance of trauma traineesA quality improvement approach to developing a standardized reporting format of ct findings in blunt splenic injuriesOutcomes in geriatric trauma: what really mattersFresh whole blood is not better than component therapy (FFP:RBC) in hemorrhagic shock: a thromboelastometric study in a small animal modelFactors affecting mortality of chest trauma patients: a prospective studyLong-term pain prevalence and health related quality of life outcomes for patients enrolled in a ketamine versus morphine for prehospital traumatic pain randomized controlled trialDescribing pain following trauma: predictors of persistent pain and pain prevalenceManagement strategies for hemorrhage due to pelvic trauma: a survey of Canadian general surgeonsMajor trauma follow-up clinic: Patient perception of recovery following severe traumaLost opportunities to enhance trauma practice: culture of interprofessional education and sharing among emergency staffPrehospital airway management in major trauma and traumatic brain injury by critical care paramedicsImproving patient selection for angiography and identifying risk of rebleeding after angioembolization in the nonoperative management of high grade splenic injuriesFactors predicting the need for angioembolization in solid organ injuryProthrombin complex concentrates use in traumatic brain injury patients on oral anticoagulants is effective despite underutilizationThe right treatment at the right time in the right place: early results and associations from the introduction of an all-inclusive provincial trauma care systemA multicentre study of patient experiences with acute and postacute injury carePopulation burden of major trauma: Has introduction of an organized trauma system made a difference?Long-term functional and return to work outcomes following blunt major trauma in Victoria, AustraliaSurgical dilemma in major burns victim: heterotopic ossification of the tempromandibular jointWhich radiological modality to choose in a unique penetrating neck injury: a differing opinionThe Advanced Trauma Life Support (ATLS) program in CanadaThe Rural Trauma Team Development Course (RTTDC) in Pakistan: Is there a role?Novel deployment of BC mobile medical unit for coverage of BMX world cup sporting eventIncidence and prevalence of intra-abdominal hypertension and abdominal compartment syndrome in critically ill adults: a systematic review and meta-analysisRisk factors for intra-abdominal hypertension and abdominal compartment syndrome in critically ill or injured adults: a systematic review and meta-analysisA comparison of quality improvement practices at adult and pediatric trauma centresInternational trauma centre survey to evaluate content validity, usability and feasibility of quality indicatorsLong-term functional recovery following decompressive craniectomy for severe traumatic brain injuryMorbidity and mortality associated with free falls from a height among teenage patients: a 5-year review from a level 1 trauma centreA comparison of adverse events between trauma patients and general surgery patients in a level 1 trauma centreProcoagulation, anticoagulation and fibrinolysis in severely bleeding trauma patients: a laboratorial characterization of the early trauma coagulopathyThe use of mobile technology to facilitate surveillance and improve injury outcome in sport and physical activityIntegrated knowledge translation for injury quality improvement: a partnership between researchers and knowledge usersThe impact of a prevention project in trauma with young and their learningIntraosseus vascular access in adult trauma patients: a systematic reviewThematic analysis of patient reported experiences with acute and post-acute injury careAn evaluation of a world health organization trauma care checklist quality improvement pilot programProspective validation of the modified pediatric trauma triage toolThe 16-year evolution of a Canadian level 1 trauma centre: growing up, growing out, and the impact of a booming economyA 20-year review of trauma related literature: What have we done and where are we going?Management of traumatic flail chest: a systematic review of the literatureOperative versus nonoperative management of flail chestEmergency department performance of a clinically indicated and technically successful emergency department thoracotomy and pericardiotomy with minimal equipment in a New Zealand institution without specialized surgical backupBritish Columbia’s mobile medical unit — an emergency health care support resourceRoutine versus ad hoc screening for acute stress: Who would benefit and what are the opportunities for trauma care?A geographical analysis of the Early Development Instrument (EDI) and childhood injuryDevelopment of a pediatric spinal cord injury nursing course“Kids die in driveways” — an injury prevention campaignEpidemiology of traumatic spine injuries in childrenA collaborative approach to reducing injuries in New Brunswick: acute care and injury preventionImpact of changes to a provincial field trauma triage tool in New BrunswickEnsuring quality of field trauma triage in New BrunswickBenefits of a provincial trauma transfer referral system: beyond the numbersThe field trauma triage landscape in New BrunswickImpact of the Rural Trauma Team Development Course (RTTDC) on trauma transfer intervals in a provincial, inclusive trauma systemTrauma and stress: a critical dynamics study of burnout in trauma centre healthcare professionalsUltrasound-guided pediatric forearm fracture reduction with sedation in the emergency departmentBlock first, opiates later? The use of the fascia iliaca block for patients with hip fractures in the emergency department: a systematic reviewRural trauma systems — demographic and survival analysis of remote traumas transferred from northern QuebecSimulation in trauma ultrasound trainingIncidence of clinically significant intra-abdominal injuries in stable blunt trauma patientsWake up: head injury management around the clockDamage control laparotomy for combat casualties in forward surgical facilitiesDetection of soft tissue foreign bodies by nurse practitioner performed ultrasoundAntihypertensive medications and walking devices are associated with falls from standingThe transfer process: perspectives of transferring physiciansDevelopment of a rodent model for the study of abdominal compartment syndromeClinical efficacy of routine repeat head computed tomography in pediatric traumatic brain injuryEarly warning scores (EWS) in trauma: assessing the “effectiveness” of interventions by a rural ground transport service in the interior of British ColumbiaAccuracy of trauma patient transfer documentation in BCPostoperative echocardiogram after penetrating cardiac injuries: a retrospective studyLoss to follow-up in trauma studies comparing operative methods: a systematic reviewWhat matters where and to whom: a survey of experts on the Canadian pediatric trauma systemA quality initiative to enhance pain management for trauma patients: baseline attitudes of practitionersComparison of rotational thromboelastometry (ROTEM) values in massive and nonmassive transfusion patientsMild traumatic brain injury defined by GCS: Is it really mild?The CMAC videolaryngosocpe is superior to the glidescope for the intubation of trauma patients: a prospective analysisInjury patterns and outcome of urban versus suburban major traumaA cost-effective, readily accessible technique for progressive abdominal closureEvolution and impact of the use of pan-CT scan in a tertiary urban trauma centre: a 4-year auditAdditional and repeated CT scan in interfacilities trauma transfers: room for standardizationPediatric trauma in situ simulation facilitates identification and resolution of system issuesHospital code orange plan: there’s an app for thatDiaphragmatic rupture from blunt trauma: an NTDB studyEarly closure of open abdomen using component separation techniqueSurgical fixation versus nonoperative management of flail chest: a meta-analysisIntegration of intraoperative angiography as part of damage control surgery in major traumaMass casualty preparedness of regional trauma systems: recommendations for an evaluative frameworkDiagnostic peritoneal aspirate: An obsolete diagnostic modality?Blunt hollow viscus injury: the frequency and consequences of delayed diagnosis in the era of selective nonoperative managementEnding “double jeopardy:” the diagnostic impact of cardiac ultrasound and chest radiography on operative sequencing in penetrating thoracoabdominal traumaAre trauma patients with hyperfibrinolysis diagnosed by rotem salvageable?The risk of cardiac injury after penetrating thoracic trauma: Which is the better predictor, hemodynamic status or pericardial window?The online Concussion Awareness Training Toolkit for health practitioners (CATT): a new resource for recognizing, treating, and managing concussionThe prevention of concussion and brain injury in child and youth team sportsRandomized controlled trial of an early rehabilitation intervention to improve return to work Rates following road traumaPhone call follow-upPericardiocentesis in trauma: a systematic review. Can J Surg 2013. [DOI: 10.1503/cjs.005813] [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: 11/01/2022] Open
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Mills AM, Antinori A, Clotet B, Fourie J, Herrera G, Hicks C, Madruga JV, Vanveggel S, Stevens M, Boven K. Neurological and psychiatric tolerability of rilpivirine (TMC278)vs.efavirenz in treatment-naïve, HIV-1-infected patients at 48 weeks. HIV Med 2013; 14:391-400. [DOI: 10.1111/hiv.12012] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2012] [Indexed: 11/29/2022]
Affiliation(s)
- AM Mills
- Anthony Mills MD Inc.; Los Angeles; CA; USA
| | - A Antinori
- National Institute for Infectious Diseases ‘Lazzaro Spallanzani’ IRCCS; Rome; Italy
| | - B Clotet
- University Hospital Germans Trias i Pujol and irsiCaixa Foundation; UAB; Barcelona; Spain
| | - J Fourie
- Dr J Fourie Medical Centre; Dundee; KwaZulu Natal; South Africa
| | - G Herrera
- Hospital CIMA San Jose; San Jose; Costa Rica
| | - C Hicks
- Division of Infectious Diseases; Duke University Medical Center; Durham; NC; USA
| | - JV Madruga
- Centro de Referência e Treinamento DST/AIDS; São Paulo; Brazil
| | - S Vanveggel
- Janssen Infectious Diseases BVBA; Beerse; Belgium
| | - M Stevens
- Janssen Infectious Diseases BVBA; Beerse; Belgium
| | - K Boven
- Janssen Research & Development; LLC; Titusville; NJ; USA
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Kennedy F, Lanfranconi S, Hicks C, Reid J, Gompertz P, Price C, Kerry S, Norris J, Markus HS. Antiplatelets vs anticoagulation for dissection: CADISS nonrandomized arm and meta-analysis. Neurology 2012; 79:686-9. [DOI: 10.1212/wnl.0b013e318264e36b] [Citation(s) in RCA: 136] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Hicks C, Trickett A, Kwan YL, Ramanathan S. The use of adjusted ideal body weight for overweight patients undergoing HPC mobilisation for autologous transplantation. Ann Hematol 2012; 91:1795-801. [DOI: 10.1007/s00277-012-1523-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2012] [Accepted: 07/06/2012] [Indexed: 10/28/2022]
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Hicks C, Jorgensen W, Brown C, Fardell J, Koehbach J, Gruber CW, Kassiou M, Hunt GE, McGregor IS. The nonpeptide oxytocin receptor agonist WAY 267,464: receptor-binding profile, prosocial effects and distribution of c-Fos expression in adolescent rats. J Neuroendocrinol 2012; 24:1012-29. [PMID: 22420322 PMCID: PMC3399775 DOI: 10.1111/j.1365-2826.2012.02311.x] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Previous research suggests that the nonpeptide oxytocin receptor (OTR) agonist WAY 267,464 may only partly mimic the effects of oxytocin in rodents. The present study further explored these differences and related them to OTR and vasopressin 1a receptor (V(1a) R) pharmacology and regional patterns of c-Fos expression. Binding data for WAY 267,464 and oxytocin were obtained by displacement binding assays on cellular membranes, while functional receptor data were generated by luciferase reporter assays. For behavioural testing, adolescent rats were tested in a social preference paradigm, the elevated plus-maze (EPM) and for locomotor activity changes following WAY 267,464 (10 and 100 mg/kg, i.p.) or oxytocin (0.1 and 1 mg/kg, i.p.). The higher doses were also examined for their effects on regional c-Fos expression. Results showed that WAY 267,464 had higher affinity (K(i) ) at the V(1a) R than the OTR (113 versus 978 nm). However, it had no functional response at the V(1a) R and only a weak functional effect (EC(50) ) at the OTR (881 nm). This suggests WAY 267,464 is an OTR agonist with weak affinity and a possible V(1a) R antagonist. Oxytocin showed high binding at the OTR (1.0 nm) and V(1a) R (503 nm), with a functional EC(50) of 9.0 and 59.7 nm, respectively, indicating it is a potent OTR agonist and full V(1a) R agonist. WAY 267,464 (100 mg/kg), but not oxytocin, significantly increased the proportion of time spent with a live rat, over a dummy rat, in the social preference test. Neither compound affected EPM behaviour, whereas the higher doses of WAY 267,464 and oxytocin suppressed locomotor activity. WAY 267,464 and oxytocin produced similar c-Fos expression in the paraventricular hypothalamic nucleus, central amygdala, lateral parabrachial nucleus and nucleus of the solitary tract, suggesting a commonality of action at the OTR with the differential doses employed. However, WAY 267,464 caused greater c-Fos expression in the medial amygdala and the supraoptic nucleus than oxytocin, and lesser effects in the locus coeruleus. Overall, our results confirm the differential effects of WAY 267,464 and oxytocin and suggest that this may reflect contrasting actions of WAY 267,464 and oxytocin at the V(1a) R. Antagonism of the V(1a) R by WAY 267,464 could underlie some of the prosocial effects of this drug either through a direct action or through disinhibition of oxytocin circuitry that is subject to vasopressin inhibitory influences.
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Affiliation(s)
- C. Hicks
- School of Psychology, Brennan MacCallum Building, University of Sydney, Sydney, Australia
| | - W. Jorgensen
- School of Chemistry, University of Sydney, Sydney, Australia
- Brain and Mind Research Institute, University of Sydney, Sydney, Australia
| | - C. Brown
- Brain and Mind Research Institute, University of Sydney, Sydney, Australia
| | - J. Fardell
- School of Psychology, Brennan MacCallum Building, University of Sydney, Sydney, Australia
| | - J. Koehbach
- Medical University of Vienna, Centre for Physiology and Pharmacology, Vienna, Austria
| | - C. W. Gruber
- Medical University of Vienna, Centre for Physiology and Pharmacology, Vienna, Austria
| | - M. Kassiou
- School of Chemistry, University of Sydney, Sydney, Australia
- Brain and Mind Research Institute, University of Sydney, Sydney, Australia
- Discipline of Medical Radiation Sciences, University of Sydney, Sydney, Australia
| | - G. E. Hunt
- Discipline of Psychiatry, Sydney Medical School, University of Sydney, Concord Hospital, Sydney, Australia
| | - I. S. McGregor
- School of Psychology, Brennan MacCallum Building, University of Sydney, Sydney, Australia
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Kao R, Rajagopalan A, Beckett A, Beckett A, Rex R, Shah S, Waddell J, Boitano M, Faidi S, Babatunde O, Lawson F, Grant A, Sudarshan M, Sudarshan M, Takashashi M, Waggott M, Lampron J, Post A, Beale E, Bobrovitz N, Zakrison T, Smith A, Bawazeer M, Evans C, Leeper T, Kagedan D, Grenier T, Rezendo-Neto J, Roberts D, Roberts D, Stark P, Berg R, Mehta S, Gardner P, Moore L, Vassilyadi M, Moore L, Moore L, Hoshizaki B, Rezende-Neto J, Slaba I, Ramesh A, Grigorovich A, Parry N, Pajak C, Rosenbloom B, Grunfeld A, van Heest R, Fernandes J, Doucet J, Schooler S, Ali J, Klassen B, Santana M, McFarlan A, Ball C, Blackmore C, Rezende-Neto J, Kidane B, Hicks C, Brennan M, Brennan M, Harrington A, Sorvari A, Stewart TC, Biegler N, Chaubey V, Tsang B, Benjamin S, Hogan A, Fraser J, Martin M, Bridge J, Faidi S, Waligora M, Hsiao M, Sharma S, Sankarankutty A, Mckee J, Mckee J, Mckee J, Snider C, Szpakowski J, Brown R, Shah S, Shiu M, Chen M, Bell N, Besserer F, Bell N, Trudeau MO, Alhabboubi M, Rezende-Neto J, Rizoli S, Hill A, Joseph B, Lawless B, Jiao X, Xenocostas A, Rui T, Parry N, Driman D, Martin C, Stewart TC, Walsh J, Parry N, Merritt N, Elster E, Tien H, Phillips L, Bratu I, Nascimento B, Pinto R, Callum J, Tien H, Rizoli S, McMullan J, McGlasson R, Mahomed N, Flannery J, Bir C, Baillie F, Coates A, Asiri S, Foster P, Baillie F, Bhandari M, Phillips L, Bratu I, Schuurman N, Oliver L, Nathens A, Yazdani A, Alhabboubi M, St. Louis E, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, St. Louis E, Alhabboubi M, Tan X, Fata P, Deckelbaum D, Chughtai T, Razek T, Khwaja K, Takada M, Sawano M, Ito H, Tsutsumi H, Keenan A, Waggott M, Hoshizaki B, Brien S, Gilchrist M, Janis J, Phelan H, Minei J, Santana M, Stelfox H, McCredie V, Leung E, Garcia G, Rizoli S, Nathens A, Dixon E, Niven D, Kirkpatrick A, Feliciano D, D’Amours S, Ball C, Ahmed N, Izadi H, McFarlan A, Nathens A, Pavenski K, Nathens A, Bridge J, Tallon J, Leeper W, Vogt K, Stewart TC, Gray D, Parry N, Ameer A, Alhabboubi M, Alzaid S, Deckelbaum D, Fata P, Khwaja K, Razek T, Deckelbaum D, Drudi L, Boulva K, Rodrigue N, Khwaja K, Chughtai T, Fata P, Razek T, Rizoli S, Carreiro P, Lisboa T, Winter P, Ribeiro E, Cunha-Melo J, Andrade M, Zygun D, Grendar J, Ball C, Robertson H, Ouellet JF, Cheatham M, Kirkpatrick A, Ball C, Ouellet JF, McBeth P, Kirkpatrick A, Dixon E, Groff P, Inaba K, Okoye O, Pasley J, Demetriades D, Al-Harthi F, Cheng A, Lalani A, Mikrogianakis A, Cayne S, Knittel-Keren D, Gomez M, Stelfox H, Turgeon A, Lapointe J, Bourgeois G, Karton C, Rousseau P, Hoshizaki B, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Stelfox H, Turgeon A, Bourgeois G, Lapointe J, Rousseau P, Braga B, Faleiro R, Magaldi M, Cardoso G, Lozada W, Duarte L, Rizoli S, Ball C, Oddone-Paolucci E, Doig C, Kortbeek J, Gomez M, Fish J, Leach L, Leelapattana P, Fleming J, Bailey C, Nolan B, DeMestral C, McFarlan A, Zakirova R, Nathens A, Dabbs J, Duff D, Michalak A, Mitchell L, Nathens A, Singh M, Topolovec-Vranic J, Tymianski D, Yetman L, Canzian S, MacPhail I, Constable L, van Heest R, Tam A, Mahadevan P, Kim D, Bansal V, Casola G, Coimbra R, Gladwin C, Misra M, Kumar S, Gautam S, Sorvari A, Blackwood B, Coates A, Baillie F, Stelfox H, Nathens A, Wong C, Straus S, Haas B, Lenartowicz M, Parkovnick M, Parry N, Inaba K, Dixon E, Salim A, Pasley J, Kirkpatrick A, Ouellet JF, Niven D, Kirkpatrick A, Ball C, Neto C, Nogueira G, Fernandes M, Almeida T, de Abreu EMS, Rizoli S, Abrantes W, Taranto V, Parry N, Forbes T, Knight H, Keenan A, Yoxon H, Macpherson A, Bridge J, Topolovec-Vranic J, Mauceri J, Butorac E, Ahmed N, Holmes J, Gilliland J, Healy M, Tanner D, Polgar D, Fraser D, McBeth P, Crawford I, Tiruta C, Ball C, Kirkpatrick A, Roberts D, Ferri M, Bobrovitz N, Khandwala F, Stelfox H, Widder S, Mckee J, Hogan A, Benjamin S, Atkinson P, Benjamin S, Watson I, Hogan A, Benjamin S, Woodford S, Jaramillo DG, Nathens A, Alonazi N, Coates A, Baillie F, Zhang C, McFarlan A, Sorvari A, Chalklin K, Canzian S, Nathens A, DeMestral C, Hill A, Langer J, Nascimento B, Alababtain I, Fung SY, Passos E, Luz L, Brnjac E, Pinto R, Rizoli S, Widder S, Widder S, Widder S, Nathens A, Van Heest R, Constable L, Mancini F, Heidary B, Bell N, Appleton L, Hennecke P, Taunton J, Khwaja K, O’Connor M, Hameed M, Garraway N, Simons R, Evans D, Taulu T, Quinn L, Kuipers D, Rizoli S, Rogers C, Geerts W, Rhind S, Rizoli S, George K, Quinn L, Babcock C, Hameed M, Simons R, Caron N, Hameed M, Simons R, Prévost F, Razek T, Khwaja K, Sudarshan M, Razek T, Fata P, Deckelbaum D, Khwaja K, de Abreu EMS, Neto C, Almeida T, Pastore M, Taranto V, Fernandes M, Rizoli S, Nascimento B, Sankarankutty A, Pinto R, Callum J, Tremblay L, Tien H, Fowler R, Pinto R, Nathens A, Sadoun M, Harris J, Friese R, Kulvantunyou N, O’Keeffe T, Wynne J, Tang A, Green D, Rhee P, Trpkovski J, Blount V. Trauma Association of Canada Annual Scientific Meeting abstractsErythroopoietin resuscitated with normal saline, Ringer’s lactate and 7.5% hypertonic saline reduces small intestine injury in a hemorrhagic shock and resuscitation rat model.Analgesia in the management of pediatric trauma in the resuscitative phase: the role of the trauma centre.Multidisciplinary trauma team care in Kandahar, Afghanistan: current injury patterns and care practices.Does computed tomography for penetrating renal injury reduce renal exploration? An 8-year review at a Canadian level 1 trauma centre.The other side of pediatric trauma: violence and intent injury.Upregulation of activated protein C leads to factor V deficiency in early trauma coagulopathy.A provincial integrated model of improved care for patients following hip fracture.Sports concussion: an Olympic boxing model comparing sex with biomechanics and traumatic brain injury.A multifaceted quality improvement strategy to optimize monitoring and management of delirium in trauma patients: results of a clinician survey.Risk factors for severe all-terrain vehicle injuries in Alberta.Evaluating potential spatial access to trauma centre care by severely injured patients.Incidence of brain injury in facial fractures.Surgical outcomes and the acute care surgery service.The acute care general surgery population and prognostic factors for morbidity and mortality.Disaster preparedness of trauma.What would you like to know and how can we help you? Assessing the needs of regional trauma centres.Posttraumatic stress disorder screening for trauma patients at a level 1 trauma centre.Physical and finite element model reconstruction of a subdural hematoma event.Abdominal wall reconstruction in the trauma patient with an open abdomen.Development and pilot testing of a survey to measure patient and family experiences with injury care.Occult shock in trauma: What are Canadian traumatologists missing?Timeliness in obtaining emergent percutaneous procedures for the severely injured patient: How long is too long?97% of massive transfusion protocol activations do not include a complete hemorrhage panel.Trauma systems in Canada: What system components facilitate access to definitive care?The role of trauma team leaders in missed injuries: Does specialty matter?The adverse consequences of dabigatran among trauma and acute surgical patients.A descriptive study of bicycle helmet use in Montréal.Factor XIII, desmopressin and permissive hypotension enhance clot formation compared with normotensive resuscitation: uncontrolled hemorrhagic shock model.Negative pressure wound therapy for critically ill adults with open abdominal wounds: a systematic review.The “weekend warrior:” Fact or fiction for major trauma?Canadian injury preventon curriculum: a means to promote injury prevention.Penetrating splenic trauma: Safe for nonoperative management?The pediatric advanced trauma life support course: a national initiative.The effectiveness of a psycho-educational program among outpatients with burns or complex trauma.Trauma centre performance indicators for nonfatal outcomes: a scoping review.The evaluation of short track speed skating helmet performance.Complication rates as a trauma care performance indicator: a systematic review.Unplanned readmission following admission for traumatic injury: When, where and why?Reconstructions of concussive impacts in ice hockey.How does head CT correlate with ICP monitoring and impact monitoring discontinuation in trauma patients with a Marshall CT score of I–II?Impact of massive transfusion protocol and exclusion of plasma products from female donors on outcome of trauma patients in Calgary region of Alberta Health Services.Primary impact arthrodesis for a neglected open Weber B ankle fracture dislocation.Impact of depression on neuropsychological functioning in electrical injury patients.Predicting the need for tracheostomy in patients with cervical spinal cord injury.Predicting crumping during computed tomography imaging using base deficit.Feasibility of using telehomecare technology to support patients with an acquired brain injury and family care-givers.Program changes impact the outcomes of severely injured patients.Do trauma performance indicators accurately reflect changes in a maturing trauma program?One-stop falls prevention information for clinicians: a multidisciplinary interactive algorithm for the prevention of falls in older adults.Use of focused assessment with sonography for trauma (FAST) for combat casualties in forward facilities.Alberta All-terrain Vehicle Working Group: a call to action.Observations and potential role for the rural trauma team development course (RTTDC) in India.An electronic strategy to facilitate information-sharing among trauma team leaders.Development of quality indicators of trauma care by a consensus panel.An evaluation of a proactive geriatric trauma consultation service.Celebrity injury-related deaths: Is a gangster rapper really gangsta?Prevention of delirium in trauma patients: Are we giving thiamine prophylaxis a fair chance?Intra-abdominal injury in patients who sustain more than one gunshot wound to the abdomen: Should non-operative management be used?Retrospective review of blunt thoracic aortic injury management according to current treatment recommendations.Telemedicine for trauma resuscitation: developing a regional system to improve access to expert trauma care in Ontario.Comparing trauma quality indicator data between a pediatric and an adult trauma hospital.Using local injury data to influence injury prevention priorities.Systems saving lives: a structured review of pediatric trauma systems.What do students think of the St. Michael’s Hospital ThinkFirst Injury Prevention Strategy for Youth?An evidence-based method for targeting a shaken baby syndrome prevention media campaign.The virtual mentor: cost-effective, nurse-practitioner performed, telementored lung sonography with remote physician guidance.Quality indicators used by teaching versus nonteaching international trauma centres.Compliance to advanced trauma life support protocols in adult trauma patients in the acute setting.Closing the quality improvement loop: a collaborative approach.National Trauma Registry: “collecting” it all in New Brunswick.Does delay to initial reduction attempt affect success rates for anterior shoulder dislocation (pilot study)?Use of multidisciplinary, multi-site morbidity and mortality rounds in a provincial trauma system.Caring about trauma care: public awareness, knowledge and perceptions.Assessing the quality of admission dictation at a level 1 trauma centre.Trauma trends in older adults: a decade in review.Blunt splenic injury in patients with hereditary spherocytosis: a population-based analysis.Analysis of trauma team activation in severe head injury: an institutional experience.ROTEM results correlate with fresh frozen plasma transfusion in trauma patients.10-year trend of assault in Alberta.10-year trend in alcohol use in major trauma in Alberta.10-year trend in major trauma injury related to motorcycles compared with all-terrain vehicles in Alberta.Referral to a community program for youth injured by violence: a feasibility study.New impaired driving laws impact on the trauma population at level 1 and 3 trauma centres in British Columbia, Canada.A validation study of the mobile medical unit/polyclinic team training for the Vancouver 2010 Winter Games.Inferior vena cava filter use in major trauma: the Sunny-brook experience, 2000–2011.Relevance of cellular microparticles in trauma-induced coagulopathy: a systemic review.Improving quality through trauma centre collaboratives.Predictors of acute stress response in adult polytrauma patients following injury.Patterns of outdoor recreational injury in northern British Columbia.Risk factors for loss-to-follow up among trauma patients include functional, socio-economic, and geographic determinants: Would mandating opt-out consent strategies minimize these risks?Med-evacs and mortality rates for trauma from Inukjuak, Nunavik, Quebec.Review of open abdomens in McGill University Health Centre.Are surgical interventions for trauma associated with the development of posttraumatic retained hemothorax and empyema?A major step in understanding the mechanisms of traumatic coagulopathy: the possible role of thrombin activatable fibrinolysis inhibitor.Access to trauma centre care for patients with major trauma.Repeat head computed tomography in anticoagulated traumatic brain injury patients: still warranted.Improving trauma system governance. Can J Surg 2012. [DOI: 10.1503/cjs.006312] [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: 11/01/2022] Open
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Abstract
Heat shock proteins are members of a large family that function normally in nascent protein folding and the removal of damaged proteins and are able to respond to cellular stresses such as thermal insult to prevent catastrophic protein aggregation. A number of the most common neurodegenerative disorders such as Alzheimer's and Parkinson's diseases are characterized by such abnormal protein folding and aggregation, and the induction of the heat shock response is observed in these cases through their increased expression and often localization within the inclusions. Tau proteins form the major structural component of the neurofibrillary protein aggregates that correlate with cognitive decline in Alzheimer's disease, and appropriately this abnormal tau is targeted for corrective action by the heat shock proteins that recognize sequence motifs that are normally masked though microtubule binding. This specific heat shock response to the formation of abnormal tau can also be targeted pharmacologically to inhibit the refolding pathways and drive the degradation of tau species that are thought to be pathogenic. This review discusses the recent advances of the roles of heat shock proteins in this process.
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Affiliation(s)
- M Deture
- Department of Neuroscience, Mayo Clinic College of Medicine, 4500 San Pablo Road, Jacksonville, Florida 32224, USA
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Hicks C. GPs in England still reluctant to offer patients choice of provider, says report. West J Med 2010. [DOI: 10.1136/bmj.c2971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Hicks C. Tesco backs minimum price for alcohol to curb excessive drinking. West J Med 2010. [DOI: 10.1136/bmj.c2789] [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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Hicks C, Hennessy D. An alternative technique for evaluating the effectiveness of continuing professional development courses for health care professionals: a pilot study with practice nurses. J Nurs Manag 2008. [DOI: 10.1111/j.1365-2834.2001.00203.x] [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: 11/29/2022]
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Hicks C, Wong R, Manoharan A, Kwan YL. Viable CD34+/CD133+ blood progenitor cell dose as a predictor of haematopoietic engraftment in multiple myeloma patients undergoing autologous peripheral blood stem cell transplantation. Ann Hematol 2007; 86:591-8. [PMID: 17492259 DOI: 10.1007/s00277-007-0297-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2006] [Revised: 02/20/2007] [Accepted: 04/03/2007] [Indexed: 11/26/2022]
Abstract
Both CD34 (cluster of differentiation 34) and the more recently described CD133 are markers of primitive stem cells with haematopoietic repopulating ability. Most transplanting centres use a minimum number of CD34+ cells as the requirement for a transplant and consider this a predictor of haematopoietic engraftment. However, transplanted CD34+ cell dose does not always give a close correlation with time to engraftment nor explain delayed engraftment in some patients. We have retrospectively evaluated the potential of measuring viable CD133+ cell numbers in the autograft as an alternative predictor of haematological engraftment after autologous stem-cell transplantation in a cohort of patients with multiple myeloma (MM). We found an average 32% loss of viability of CD34+ cells in the post-thaw sample compared with the fresh sample. Of the original estimated CD34+ cell numbers transplanted per kg, 43% of the thawed samples were double positive for CD34+/CD133+. In this patient group, the CD34+/CD133+ subset gave the closest statistical correlation with time to neutrophil engraftment (p < 0.05), particularly for patients given above median (1.8 x 10(6)/kg) dose of the double-positive cells. The CD34+/CD133+ population was the only parameter to give a significant correlation with white cell engraftment in this patient cohort (p < 0.05). There was no significant correlation between CD34+, viable CD34+ or viable CD34+/CD133+ cells/kilogram with platelet engraftment. Determination of viable CD34+/CD133+ progenitor cell dose in the autograft may be a useful tool to predict neutrophil recovery after autologous transplantation than conventional assessment of CD34+ numbers. These results warrant further investigation of the role of CD133 in haematopoietic engraftment.
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Affiliation(s)
- C Hicks
- Department of Clinical Haematology, Bone Marrow Transplant Laboratory, St. George Hospital, Kogarah, 2217 Sydney, NSW, Australia.
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Reid K, Parmar S, Hicks C. A multidisciplinary pre treatment clinic for head and neck cancer patients-is it useful? Radiother Oncol 2007. [DOI: 10.1016/s0167-8140(07)80223-4] [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: 11/27/2022]
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Fejerman L, Wu X, Adeyemo A, Luke A, Zhu X, Hicks C, Cooper RS. The effect of genetic variation in angiotensinogen on serum levels and blood pressure: a comparison of Nigerians and US blacks. J Hum Hypertens 2006; 20:882-7. [PMID: 16971959 DOI: 10.1038/sj.jhh.1002077] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [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] [Indexed: 11/08/2022]
Abstract
Molecular variants of angiotensinogen (AGT) have been associated with AGT level and hypertension (HT). However, results from reported studies vary considerably between- and within-studied populations. We performed association analysis of AGT gene variants with AGT levels and HT in samples of African descent families, including 595 Nigerians and 901 African Americans. We evaluated association using haplotypes defined by a set of single-nucleotide polymorphisms selected from a previous detailed study of the gene haplotype structure. In the sample of Nigerian families, AGT haplotype H1 was associated with high plasma level. Results were not significant for blood pressure (BP) or HT. For the African-American population, we found significant association between low plasma AGT level and haplotype H7. Furthermore, we found weak associations of H1 with hypertensive status and H7 with low systolic BP. However, no significant association between H1 and high plasma level was found. We conclude that the two distantly related haplotypes, H1 and H7, are associated, but have opposite effects on the phenotypes in two populations of African origin.
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Affiliation(s)
- L Fejerman
- Department of Biological Anthropology, University of Oxford, Oxford, UK.
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Case J, Hicks C, Trickett A, Kwan YL, Manoharan A. The Expansion of Megakaryocyte Progenitors from CD34+-Enriched Mobilized Peripheral Blood Stem Cells Is Inhibited by Flt3-L. J Interferon Cytokine Res 2006; 26:76-82. [PMID: 16487027 DOI: 10.1089/jir.2006.26.76] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
This study aimed to determine the optimal growth factor combination for expansion of megakaryocyte (Mk) progenitors with clonogenic potential from CD34+-enriched mobilized peripheral blood stem cells (PBSC). Mobilized PBSC were monocyte depleted and CD34+ enriched, then cultured with various combinations of interleukin-3 (IL-3), IL-6, IL-11, Flt3 ligand (Flt3-L), stem cell factor (SCF), granulocyte-macrophage colonystimulating factor (GM-CSF), and erythropoietin (EPO), using a 2(7-3) IV fractional factorial design. Expansion of Mk committed progenitors (CD41+) and primitive precursors (CD61+ CD34+) was determined using FACS and colony-forming assays. Amplification of Mk progenitor production was attributed to IL-3 (p < 0.002), SCF (p < 0.001), and GM-CSF (p < 0.05). Flt3-L inhibited the production of total CD61+ cells (p < 0.05), CD61+CD34+ cells (p < 0.03), and total CD41a+ cells (p < 0.01). Addition of Flt3-L to the optimum growth factor combination of megakaryocyte growth and development factor (MGDF), SCF, IL-3, and GM-CSF caused the greatest increase in total nucleated cells but reduced Mk progenitor expansion. There was also a 20% reduction in Mk+ colonies from cells expanded in the presence of Flt3-L. Factorial analysis identified the optimal combination of growth factors required to expand Mk precursors with clonogenic potential. The addition of Flt3-L to the optimal combination of MGDF, SCF, IL-3, and GM-CSF reduced both the fold expansion of Mk progenitors and Mk colony numbers.
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Affiliation(s)
- J Case
- Department of Clinical Haematology, St. George Hospital, and University of New South Wales, Sydney, Australia
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Clarke M, Collins R, Darby S, Davies C, Elphinstone P, Evans V, Godwin J, Gray R, Hicks C, James S, MacKinnon E, McGale P, McHugh T, Peto R, Taylor C, Wang Y. Effects of radiotherapy and of differences in the extent of surgery for early breast cancer on local recurrence and 15-year survival: an overview of the randomised trials. Lancet 2005; 366:2087-106. [PMID: 16360786 DOI: 10.1016/s0140-6736(05)67887-7] [Citation(s) in RCA: 3519] [Impact Index Per Article: 185.2] [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: 12/11/2022]
Abstract
BACKGROUND In early breast cancer, variations in local treatment that substantially affect the risk of locoregional recurrence could also affect long-term breast cancer mortality. To examine this relationship, collaborative meta-analyses were undertaken, based on individual patient data, of the relevant randomised trials that began by 1995. METHODS Information was available on 42,000 women in 78 randomised treatment comparisons (radiotherapy vs no radiotherapy, 23,500; more vs less surgery, 9300; more surgery vs radiotherapy, 9300). 24 types of local treatment comparison were identified. To help relate the effect on local (ie, locoregional) recurrence to that on breast cancer mortality, these were grouped according to whether or not the 5-year local recurrence risk exceeded 10% (<10%, 17,000 women; >10%, 25,000 women). FINDINGS About three-quarters of the eventual local recurrence risk occurred during the first 5 years. In the comparisons that involved little (<10%) difference in 5-year local recurrence risk there was little difference in 15-year breast cancer mortality. Among the 25,000 women in the comparisons that involved substantial (>10%) differences, however, 5-year local recurrence risks were 7% active versus 26% control (absolute reduction 19%), and 15-year breast cancer mortality risks were 44.6% versus 49.5% (absolute reduction 5.0%, SE 0.8, 2p<0.00001). These 25,000 women included 7300 with breast-conserving surgery (BCS) in trials of radiotherapy (generally just to the conserved breast), with 5-year local recurrence risks (mainly in the conserved breast, as most had axillary clearance and node-negative disease) 7% versus 26% (reduction 19%), and 15-year breast cancer mortality risks 30.5% versus 35.9% (reduction 5.4%, SE 1.7, 2p=0.0002; overall mortality reduction 5.3%, SE 1.8, 2p=0.005). They also included 8500 with mastectomy, axillary clearance, and node-positive disease in trials of radiotherapy (generally to the chest wall and regional lymph nodes), with similar absolute gains from radiotherapy; 5-year local recurrence risks (mainly at these sites) 6% versus 23% (reduction 17%), and 15-year breast cancer mortality risks 54.7% versus 60.1% (reduction 5.4%, SE 1.3, 2p=0.0002; overall mortality reduction 4.4%, SE 1.2, 2p=0.0009). Radiotherapy produced similar proportional reductions in local recurrence in all women (irrespective of age or tumour characteristics) and in all major trials of radiotherapy versus not (recent or older; with or without systemic therapy), so large absolute reductions in local recurrence were seen only if the control risk was large. To help assess the life-threatening side-effects of radiotherapy, the trials of radiotherapy versus not were combined with those of radiotherapy versus more surgery. There was, at least with some of the older radiotherapy regimens, a significant excess incidence of contralateral breast cancer (rate ratio 1.18, SE 0.06, 2p=0.002) and a significant excess of non-breast-cancer mortality in irradiated women (rate ratio 1.12, SE 0.04, 2p=0.001). Both were slight during the first 5 years, but continued after year 15. The excess mortality was mainly from heart disease (rate ratio 1.27, SE 0.07, 2p=0.0001) and lung cancer (rate ratio 1.78, SE 0.22, 2p=0.0004). INTERPRETATION In these trials, avoidance of a local recurrence in the conserved breast after BCS and avoidance of a local recurrence elsewhere (eg, the chest wall or regional nodes) after mastectomy were of comparable relevance to 15-year breast cancer mortality. Differences in local treatment that substantially affect local recurrence rates would, in the hypothetical absence of any other causes of death, avoid about one breast cancer death over the next 15 years for every four local recurrences avoided, and should reduce 15-year overall mortality.
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Affiliation(s)
- M Clarke
- Clinical Trial Service Unit, Oxford, UK
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Satoh M, Hicks C, Ishii K, Furukawa T. Choice of statistical model for estimating genetic parameters using restricted maximum likelihood in swine. J Anim Breed Genet 2002. [DOI: 10.1046/j.1439-0388.2002.00355.x] [Citation(s) in RCA: 14] [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] [Indexed: 11/20/2022]
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Hicks C, Keoshkerian E, French R, Lindeman R. Adenoviral mediated interleukin-2 gene transfer to human long-term bone marrow stromal cultures. Cancer Biother Radiopharm 2001; 16:537-43. [PMID: 11789030 DOI: 10.1089/10849780152752137] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human long-term bone marrow stromal cultures (LTBMC) have been transduced to express the immunostimulatory cytokine interleukin-2 (IL-2). LTBMC were established from normal bone marrow and characterized by gross morphology, immunohistochemistry, immunophenotyping, and immunofluorescent staining. A stromal marrow cell (SMC) population expressing the markers CD68, CD29, CD13, and CD54 was identified. These cells were successfully transduced with an adenoviral vector containing the human IL-2 gene. Production of IL-2 was demonstrated for at least 13 days post-transduction and was maximal on day 10 at 19,350 pg (or 38 IU) of IL-2/10(6) cells/24 h. IL-2 expressed by the transduced SMC was demonstrated to be biologically active, resulting in the proliferation of autologous T lymphocytes in a mixed lymphocyte reaction. Autologous human LTBMC can be obtained and manipulated with relative ease and may be a useful vehicle for sustained local cytokine delivery.
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Affiliation(s)
- C Hicks
- Department of Haematology, Prince of Wales Hospital, High Street, Randwick, NSW, 2031, Sydney, Australia.
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Abstract
RATIONALE, AIMS AND OBJECTIVES The issue of nurse prescribing is highly topical, with various United Kingdom Government directives recommending this extension to the nursing role. However, despite an imperative to provide 23 000 nurse prescribers by March 2001 and to expand this function to half the nursing workforce by 2004, there is as yet no agreement as to the occupational profile of the nurse prescriber, nor the level and content of any pre-requisite educational programme. This study was an attempt to address these unresolved aspects with family planning nurses. METHOD A psychometrically valid and reliable training needs analysis instrument was distributed to 1142 family planning nurses, of which 388 were returned. This instrument required the respondents to assess 40 core clinical tasks according to three criteria: how critical each task was both to their current role as family planning nurses and to the role of the family planning nurse prescriber, and how well each was performed. Comparisons of the ratings provided an indicative profile of the role of the family planning nurse prescriber and a prioritized list of training needs to achieve this status. RESULTS Generally, and unsurprisingly, the nurse prescribing role was defined primarily in terms of prescribing functions, although advanced professional issues, communication, teamwork and business/administration were also deemed to be salient. Research was not identified as being important. However, with regard to the top 15 training needs, seven research tasks were recorded, with the remainder including advanced clinical activities, applied pharmacology, administration and technical activities. CONCLUSION This study offers a role definition of the nurse prescriber in family planning, and an indicative curriculum for cognate educational programmes.
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Affiliation(s)
- C Tyler
- Central Family Planning Clinic, Norfolk and Norwich University Hospital NHS Trust, Norwich, UK.
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Sanchez JL, Kruger RM, Paranjothi S, Trulock EP, Lynch JP, Hicks C, Shannon WD, Storch GA. Relationship of cytomegalovirus viral load in blood to pneumonitis in lung transplant recipients. Transplantation 2001; 72:733-5. [PMID: 11544440 DOI: 10.1097/00007890-200108270-00030] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
We developed a multiplex, quantitative, real-time, polymerase chain reaction assay for cytomegalovirus (CMV) and used it to measure the CMV viral load in weekly blood specimens from 43 lung transplant recipients. The median viral load in blood samples immediately preceding bronchoscopy was 1150 copies/microg human DNA for 12 subjects with pneumonitis compared to 91 copies for 31 subjects without (P=0.02, Mann-Whitney U test). Each log10 increase in CMV viral load resulted in an increase of 1.92 in the odds ratio for CMV pneumonitis (95% confidence interval 1.03-3.56). CMV viral load was elevated (>100 copies/microg human DNA) for a median of 21 days before bronchoscopy in those subjects with pneumonitis versus 0 days in those without (P=0.004). We conclude that the risk of CMV pneumonitis after lung transplantation is related to the level of CMV DNA in blood. Quantitative PCR should be evaluated prospectively for the preemptive management of CMV in lung transplant recipients.
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Affiliation(s)
- J L Sanchez
- Department of Medicine, Washington University School of Medicine, St. Louis, MO 63110, USA
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Hicks C, Bean SR, Lookhart GL, Pedersen JF, Kofoid KD, Tuinstra MR. Genetic Analysis of Kafirins and Their Phenotypic Correlations with Feed Quality Traits, In Vitro Digestibility, and Seed Weight in Grain Sorghum. Cereal Chem 2001. [DOI: 10.1094/cchem.2001.78.4.412] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- C. Hicks
- Kansas State University, Department of Agronomy, Manhattan, KS 66502
| | - S. R. Bean
- Kansas State University, Department of Grain Science, Manhattan, KS 66502
| | - G. L. Lookhart
- USDA-ARS Grain Marketing Production and Research Center, Manhattan, KS 66502. Names are necessary to report factually on available data; however, the USDA neither guarantees nor warrants the standard of the product, and the use of the name by the USDA implies no approval of the product to the exclusion of others that may also be suitable
| | - J. F. Pedersen
- USDA-REE-ARS-NPA, Wheat, Sorghum, and Forage Research, University of Nebraska, E. Campus, Lincoln, NE 68583
| | - K. D. Kofoid
- Kansas State University Research and Extension Center-Hays, Hays, KS 67601
| | - M. R. Tuinstra
- Kansas State University, Department of Agronomy, Manhattan, KS 66502
- Corresponding author. Phone: 785-532-7238. Fax: 785-532-6094. E-mail:
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Hicks C. Compromise plan put forward for GMC. BMJ 2001; 322:1506. [PMID: 11420264 PMCID: PMC1120564 DOI: 10.1136/bmj.322.7301.1506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Spurgeon P, Hicks C, Barwell F. Antenatal, delivery and postnatal comparisons of maternal satisfaction with two pilot Changing Childbirth schemes compared with a traditional model of care. Midwifery 2001; 17:123-32. [PMID: 11399133 DOI: 10.1054/midw.2001.0255] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVE to investigate maternal satisfaction with two pilot schemes based on the Changing Childbirth initiative (DoH 1993) and to compare this with a traditional model of care. In addition, a limited number of clinical outcome measures were also assessed. DESIGN a retrospective between-group design was used. Questionnaire data were collected from three groups (two pilot and one control) about the antenatal, labour and postnatal periods to establish both satisfaction with key objectives of the Changing Childbirth initiative (DoH 1993), and basic clinical outcomes. SETTING a large Trust (see definition in main article) in Central England, that covered a wide range of socio-economic strata. PARTICIPANTS the two pilot groups comprised 112 and 103 women respectively and were randomly drawn from GP practices within the Trust's catchment area. The third group of 118 women (Control) was selected from the Trust's obstetric unit. Women at high obstetric risk were excluded from this study. MEASUREMENT a five-part questionnaire was devised that covered: (1) preferences for type of care, health-care professional, venue etc; (2) details of antenatal care provision and the participants' satisfaction with this; (3) labour, including clinical outcomes, labour and birth details and satisfaction with care; (4) postnatal care information, including satisfaction scores; and (5) information and advice given throughout the ante, delivery and postnatal periods and satisfaction with this. The questionnaires were administered six weeks postnatally. FINDINGS although the two pilot groups had been set up to follow a one-to-one midwifery care model, the second group naturally evolved into providing care from within a small group of midwives. This variation did not lead to any differences in any of the outcome measures. The women in the obstetrician-led group were not dissatisfied with the care, information and treatment they received, but they were significantly less satisfied than either of the two pilot groups. The pilot groups also rated more highly the information and choice that they had, and felt that the midwives acted as partners in the process. These findings applied to the antenatal, delivery and postnatal periods. No differences in clinical outcomes were observed between the groups. CONCLUSIONS midwifery-led care was much preferred to obstetrician-led care and did not lead to any deficits in clinical outcomes. The pilot scheme that adapted the initiative into small-group provision showed no reduction in satisfaction levels or other outcome measures. Since burn-out and stress have been identified as features of one-to-one midwifery provision, this model might have potential for offsetting this problem, while still maintaining the spirit of the Changing Childbirth policy. From the perspective of maternal well-being, both physical and psychological, the initiative reported here appears to have been highly successful.
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Affiliation(s)
- P Spurgeon
- The University of Birmingham, Birmingham, B15 2TT
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Mosley C, Whittle C, Hicks C. A pilot study to assess the viability of a randomised controlled trial of methods of supplementary feeding of breast-fed pre-term babies. Midwifery 2001; 17:150-7. [PMID: 11399136 DOI: 10.1054/midw.2000.0244] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
OBJECTIVES to compare the impact of two methods of supplementary feeding of pre-term babies (bottle vs cup) on subsequent breast feeding and to assess the feasibility of using a randomised controlled trial (RCT) to investigate the topic. DESIGN AND METHOD small scale prospective RCT. Data on breast feeding, as defined as the exclusive method of feeding, were collected. A range of relevant bio-data was also collected and their impact on breast feeding assessed. SETTING a special care baby unit in a District General Hospital in the UK. PARTICIPANTS over a three-month period, all pre-term babies (32-37 weeks' gestation) who fulfilled the inclusion criteria and has been born to mothers who had expressed a pre-partum desire to breast feed, who had consented to take part, were included (n=14). PROCEDURE the eligible babies were randomly allocated to supplementary feeding of breast milk, via either a cup or a bottle. Whether or not the baby was being breast fed at discharge was noted. FINDINGS the study suggested that this RCT framework is a viable method of investigating baby feeding. Because of the small-scale nature of the project, the actual database must be treated with extreme caution. No significant differences were found between the two groups in terms of breast feeding. However, the mothers reported high levels of support and also the breast-feeding rates were above the national averages. These two findings could have contributed to the non-significant results observed in this analysis. CONCLUSIONS if the present findings could be supported by further research, then the non-significant results relating method of supplementary feeds to subsequent breast feeding could be explained by reference to three factors. Firstly, there is, in fact, no real effect of method of supplementary feeding and subsequent breast feeding; secondly, the method adopted differed from existing research and thus may be expected to produce non-corroborative results; and finally, the overall levels of breast feeding within the Unit generally were higher than the national average. The relevance of the RCT for investigating this subject is also discussed with reference to the present data set. Further experimental work to develop these ideas and to identify causal links is required.
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Affiliation(s)
- C Mosley
- Special Care Baby Unit, Macclesfield District General Hospital, UK
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Staszewski S, Keiser P, Montaner J, Raffi F, Gathe J, Brotas V, Hicks C, Hammer SM, Cooper D, Johnson M, Tortell S, Cutrell A, Thorborn D, Isaacs R, Hetherington S, Steel H, Spreen W. Abacavir-lamivudine-zidovudine vs indinavir-lamivudine-zidovudine in antiretroviral-naive HIV-infected adults: A randomized equivalence trial. JAMA 2001; 285:1155-63. [PMID: 11231744 DOI: 10.1001/jama.285.9.1155] [Citation(s) in RCA: 223] [Impact Index Per Article: 9.7] [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: 11/14/2022]
Abstract
CONTEXT Abacavir, a nucleoside analogue, has demonstrated suppression of human immunodeficiency virus (HIV) replication alone and in combination therapy. However, the role of abacavir in a triple nucleoside combination regimen has not been evaluated against a standard protease inhibitor-containing regimen for initial antiretroviral treatment. OBJECTIVE To evaluate antiretroviral equivalence and safety of an abacavir-lamivudine-zidovudine regimen compared with an indinavir-lamivudine-zidovudine regimen. DESIGN AND SETTING A multicenter, phase 3, randomized, double-blind trial with an enrollment period from August 1997 to June 1998, with follow-up through 48 weeks at 73 clinical research units in the United States, Canada, Australia, and Europe. PATIENTS Five hundred sixty-two antiretroviral-naive, HIV-infected adults with a plasma HIV RNA level of at least 10 000 copies/mL and a CD4 cell count of at least 100 x 10(6)/L. INTERVENTIONS Patients were stratified by baseline HIV RNA level and randomly assigned to receive a combination tablet containing 150 mg of lamivudine and 300 mg of zidovudine twice daily plus either 300 mg of abacavir twice daily and indinavir placebo or 800 mg of indinavir every 8 hours daily plus abacavir placebo. After 16 weeks, patients with confirmed HIV RNA levels greater than 400 copies/mL were eligible to continue receiving randomized treatment or receive open-label therapy. MAIN OUTCOME MEASURE Virologic suppression, defined as HIV RNA concentration of 400 copies/mL or less at week 48. RESULTS The proportion of patients who met the end point of having an HIV RNA level of 400 copies/mL or less at week 48 was equivalent in the abacavir group (51% [133/262]) and in the indinavir group (51% [136/265]) with a treatment difference of -0.6% (95% confidence interval [CI], -9% to 8%). In patients with baseline HIV RNA levels greater than 100 000 copies/mL, the proportion of patients achieving less than 50 copies/mL was greater in the indinavir group than in the abacavir group with 45% (45/100) vs 31% (30/96) and a treatment diference of -14% (95% CI, -27% to 0%). The 2 treatments were comparable with respect to their effects on CD4 cell count. There was no difference between groups in the frequency of treatment-limiting adverse events or laboratory abnormalities. One death in the abacavir group was attributed to hypersensitivity reaction, which occurred following rechallenge with abacavir, approximately 3 weeks after initiating study treatment. CONCLUSIONS In this study of antiretroviral-naive HIV-infected adults, the triple nucleoside regimen of abacavir-lamivudine-zidovudine was equivalent to the regimen of indinavir-lamivudine-zidovudine in achieving a plasma HIV RNA level of less than 400 copies/mL at 48 weeks.
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Affiliation(s)
- S Staszewski
- Klinikum der Johann Wolfgang Goethe-Universität, Zentrum der Inneren Medizin, Infektionsambulanz, Haus 68, Theodor-Stern-Kai 7, D-60596 Frankfurt, Germany.
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Berezovska O, Jack C, McLean P, Aster JC, Hicks C, Xia W, Wolfe MS, Weinmaster G, Selkoe DJ, Hyman BT. Rapid Notch1 nuclear translocation after ligand binding depends on presenilin-associated gamma-secretase activity. Ann N Y Acad Sci 2001; 920:223-6. [PMID: 11193154 DOI: 10.1111/j.1749-6632.2000.tb06926.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [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] [Indexed: 11/29/2022]
Abstract
Recent data suggest an intimate relationship between the familial Alzheimer disease gene presenilin 1 (PS1) and proteolytic processing of both the amyloid precursor protein (APP) and the important cell signaling molecule, Notch1. We now show, using mammalian cells transfected with full-length Notch1, that the C terminal domain of Notch1 rapidly translocates to the nucleus upon stimulation with the physiologic ligand Delta and initiates a CBF1-dependent signal transduction cascade. Using this assay, we demonstrate that the same aspartate mutations in PS1 that block APP processing also prevent Notch1 cleavage and translocation to the nucleus. Moreover, we show that two APP gamma-secretase inhibitors also diminish Notch1 nuclear translocation in a dose-dependent fashion. However, Notch1 signaling, assessed by measuring the activity of CBF1, a downstream gene, was reduced but not completely abolished in the presence of either aspartate mutations or gamma-secretase inhibitors. Our results support the hypothesis that similar PS1-related enzymatic activity is necessary for both APP and Notch1 processing, yet suggest that Notch signaling may remain relatively preserved with moderate levels of gamma-secretase inhibition.
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Affiliation(s)
- O Berezovska
- Alzheimer's Disease Research Laboratory, Massachusetts General Hospital, 149-13th Street, Charlestown, MA 02129, USA.
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Pongcharoen P, Stewardson DJ, Hicks C, Braiden PM. Applying designed experiments to optimize the performance of genetic algorithms used for scheduling complex products in the capital goods industry. J Appl Stat 2001. [DOI: 10.1080/02664760120034162] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Watson MA, Perry A, Budhraja V, Budhjara V, Hicks C, Shannon WD, Rich KM. Gene expression profiling with oligonucleotide microarrays distinguishes World Health Organization grade of oligodendrogliomas. Cancer Res 2001; 61:1825-9. [PMID: 11280731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Oligodendrogliomas are the second most common type of glial neoplasm with distinct prognostic and therapeutic implications. Although refinements have led to improved clinical stratification, current grading schemes are still limited by subjective histopathological criteria. In this report, we have used oligonucleotide array technology to perform expression profiling in morphologically classic oligodendrogliomas. Expression information from approximately 1100 genes divided tumors into two molecularly distinct groups that corresponded exactly to their previously assigned histological grades. Subsequent gene clustering identified a subset of 196 transcripts showing a common, differential expression pattern between tumor grades. A number of these genes have been associated with the maintenance of cytoarchitecture, cellular differentiation and maturation, immunogenicity, and chemotherapeutic resistance. These results demonstrate the utility of gene expression profiling as an objective, ancillary tool for grading oligodendrogliomas and a potential approach for classifying diffuse gliomas where histological assessment may be difficult or ambiguous.
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Affiliation(s)
- M A Watson
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, Missouri 63110, USA
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