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Jespersen JC, de Paula Dorigam JC, Whelan R, Dilger AC, Oelschlager ML, Sommer KM, Gorenz BE, White RR, Dilger RN. Defining optimal dietary starch, oil, and amino acid inclusion levels for broilers experiencing a coccidiosis challenge. Poult Sci 2024; 103:103335. [PMID: 38176364 PMCID: PMC10806127 DOI: 10.1016/j.psj.2023.103335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 11/27/2023] [Accepted: 11/28/2023] [Indexed: 01/06/2024] Open
Abstract
Alternative methods to alleviate coccidiosis in broilers are of interest to producers, including dietary strategies to minimize disruptions in growth rate and efficiency when faced with health challenges. Our objective was to determine optimal combinations of dietary starch, amino acids (AA), and oil to benefit productivity of broilers experiencing Eimeria-induced immune activation. Two trials were conducted using 1,536 male Ross 308 broiler chicks in floor pens randomly assigned to 1 of 17 experimental treatments. All birds received common starter (d 0-10) and finisher (d 24-35) diets, and only differed based on their assigned experimental grower diet (d 10-24). Trial 1 experimental grower diets ranged from 2,700 to 3,300 kcal/kg AME. Trial 2 included 10 experimental grower diets following a simplex lattice design consisting of 3 basal lots formulated to have the highest starch (45.4%), oil (10.2%), or AA density (120, 1.33% digestible Lys) and mixed in 4 equally spaced levels for each component (0, 0.33, 0.67, 1). These mixtures enabled varying densities of AA (80-120% of recommendation), starch:oil (4:1-20:1), and AME (2,940-3,450 kcal/kg). Bird and feeder weights were collected on d 0, 10, 24, and 35, and birds were exposed to an Eimeria challenge on d 11 or 12. In trial 2, excreta samples were collected for AME determination and carcasses were processed on d 36. Data were analyzed using ANOVA, t test, or regression. In Trial 1, BW gain and feed conversion were improved (P < 0.05) by increasing dietary AME. In Trial 2, birds receiving diets containing AA at 93 to 107% of recommendations and higher oil exhibited improved (P < 0.05) performance, but increased starch at the expense of oil reduced performance (P < 0.05). Relative breast and fat pad weights were not influenced by diet in Trial 2. We determined that broilers mildly challenged with Eimeria would exhibit highest BW gain when receiving diets containing 35.8% starch, 8.9% oil, and 101.3% of AA recommendations, which can be utilized by producers to maintain productivity under health-challenged conditions.
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Affiliation(s)
- J C Jespersen
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | | | - R Whelan
- Evonik Operations GmbH, Nutrition & Care, Hanau-Wolfgang, Germany
| | - A C Dilger
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - M L Oelschlager
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - K M Sommer
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - B E Gorenz
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA
| | - R R White
- Department of Animal and Poultry Sciences, Virginia Tech, Backsburg, VA, USA
| | - R N Dilger
- Department of Animal Sciences, University of Illinois, Urbana, IL, USA.
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Plini ERG, Melnychuk MC, Harkin A, Dahl MJ, McAuslan M, Kühn S, Boyle RT, Whelan R, Andrews R, Düzel S, Dreweilies J, Wagner GG, Lindenberger U, Norman K, Robertson IH, Dockree PM. Erratum to: Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II. J Nutr Health Aging 2023; 27:1288. [PMID: 38242606 DOI: 10.1007/s12603-023-2034-6] [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: 01/21/2024]
Affiliation(s)
- Emanuele R G Plini
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland.
| | - M C Melnychuk
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - A Harkin
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland; School of Pharmacy and Pharmaceutical Sciences, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - M J Dahl
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195, Berlin, Germany; Leonard Davis School of Gerontology, University of Southern California, 90089, Los Angeles, CA, USA
| | - M McAuslan
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - S Kühn
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195, Berlin, Germany
| | - R T Boyle
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, MA, USA
| | - R Whelan
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - R Andrews
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - S Düzel
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195, Berlin, Germany; Friede Springer Cardiovascular prevention center at Charité, Berlin, Germany
| | - J Dreweilies
- Lise Meitner Group for Enviromental Neuroscience, Max Planck Institute for Human Development, 14195, Berlin, Germany
| | - G G Wagner
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195, Berlin, Germany
| | - U Lindenberger
- Center for Lifespan Psychology, Max Planck Institute for Human Development, 14195, Berlin, Germany; Leonard Davis School of Gerontology, University of Southern California, 90089, Los Angeles, CA, USA; Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Building 149, Charlestown, MA, USA; Lise Meitner Group for Enviromental Neuroscience, Max Planck Institute for Human Development, 14195, Berlin, Germany; Max Planck UCL Centre for Computational Psychiatry and Ageing Research, Berlin, Germany; Max Planck UCL Centre for Computational Psychiatry and Ageing Research, London, UK
| | - K Norman
- Department of Nutrition and Gerontology, German Institute of Human Nutrition Potsdam-Rehbruecke, 14558, Nuthetal, Germany; Institute of Nutritional Science, University of Potsdam, 14558, Nuthetal, Germany; Department of Geriatrics and Medical Gerontology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, 13347, Berlin, Germany; German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, 10785, Berlin, Germany
| | - I H Robertson
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland; Department of Psychology, Global Brain Health Institute, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
| | - P M Dockree
- Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ, Dublin, Ireland
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Plini ERG, Melnychuk MC, Harkin A, Dahl MJ, McAuslan M, Kühn S, Boyle RT, Whelan R, Andrews R, Düzel S, Drewelies J, Wagner GG, Lindenberger U, Norman K, Robertson IH, Dockree PM. Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II. J Nutr Health Aging 2023; 27:1174-1187. [PMID: 38151868 DOI: 10.1007/s12603-023-2005-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Accepted: 09/19/2023] [Indexed: 12/29/2023]
Abstract
BACKGROUND AND OBJECTIVE It is documented that low protein and amino-acid dietary intake is related to poorer cognitive health and increased risk of dementia. Degradation of the neuromodulatory pathways, (comprising the cholinergic, dopaminergic, serotoninergic and noradrenergic systems) is observed in neurodegenerative diseases and impairs the proper biosynthesis of key neuromodulators from micro-nutrients and amino acids. How these micro-nutrients are linked to neuromodulatory pathways in healthy adults is less studied. The Locus Coeruleus-Noradrenergic System (LC-NA) is the earliest subcortical structure affected in Alzheimer's disease, showing marked neurodegeneration, but is also sensitive for age-related changes. The LC-NA system is critical for supporting attention and cognitive control, functions that are enhanced both by tyrosine administration and chronic tyrosine intake. The purpose of this study was to 1) investigate whether the dietary intake of tyrosine, the key precursor for noradrenaline (NA), is related to LC signal intensity 2) whether LC mediates the reported association between tyrosine intake and higher cognitive performance (measured with Trail Making Test - TMT), and 3) whether LC signal intensity relates to an objective measure of brain maintenance (BrainPAD). METHODS The analyses included 398 3T MRIs of healthy participants from the Berlin Aging Study II to investigate the relationship between LC signal intensity and habitual dietary tyrosine intake-daily average (HD-Tyr-IDA - measured with Food Frequency Questionnaire - FFQ). As a control procedure, the same analyses were repeated on other main seeds of the neuromodulators' subcortical system (Dorsal and Medial Raphe, Ventral Tegmental Area and Nucleus Basalis of Meynert). In the same way, the relationships between the five nuclei and BrainPAD were tested. RESULTS Results show that HD-Tyr-IDA is positively associated with LC signal intensity. Similarly, LC disproportionally relates to better brain maintenance (BrainPAD). Mediation analyses reveal that only LC, relative to the other nuclei tested, mediates the relationship between HD-Tyr-IDA I and performance in the TMT and between HD-Tyr-IDA and BrainPAD. CONCLUSIONS These findings provide the first evidence linking tyrosine intake with LC-NA system signal intensity and its correlation with neuropsychological performance. This study strengthens the role of diet for maintaining brain and cognitive health and supports the noradrenergic theory of cognitive reserve. Within this framework, adequate tyrosine intake might increase the resilience of LC-NA system functioning, by preventing degeneration and supporting noradrenergic metabolism required for LC function and neuropsychological performance.
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Affiliation(s)
- E R G Plini
- Emanuele RG Plini, Department of Psychology, Trinity College Institute of Neuroscience, Trinity College Dublin, Lloyd Building, 42A Pearse St, 8PVX+GJ Dublin, Ireland,
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Shirsath MA, O'Connor J, Boyle R, Newman L, Whelan R, Knight S, Meaney J, Kenny RA. 148 ORTHOSTATIC HEMODYNAMICS AND ACCELERATED BRAIN AGING. Age Ageing 2022. [DOI: 10.1093/ageing/afac218.125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Background
Impaired recovery of blood pressure (BP) in response to standing up is a prevalent condition in older individuals. We evaluated the relationship between the recovery of hemodynamic responses to standing and brain health in adults over 50.
Methods
Participants from The Irish Longitudinal Study on Aging (TILDA) (n=418) performed an active stand challenge while BP and heart rate (HR) were continuously monitored. The recovery of these parameters was determined as the difference in measurements taken at 10 s and 20 s after standing, in relation to the baseline value. The difference between biological and chronological brain age was determined using BrainPAD, a novel validated measure of accelerated brain ageing. The data was fitted using linear regression models, using age, sex, weight, height, cardiac disease prevalence, antihypertensive and antidepressant use, smoking status, standing speed and pulse wave velocity as covariates.
Results
Adjusting for age and sex only, each additional year of BrainPAD was associated with a –0.35 mmHg (95% CI: –0.54 – –0.16, P<.001) change in orthostatic systolic BP recovery. In a fully adjusted model, the regression coefficient was estimated at –0.29 mmHg (95% CI: –0.48 – –0.10, P<.01). Similarly, a year increase in BrainPAD was associated with –0.21 mmHg (95% CI: –0.32– –0.10, P<0.001) and –0.14 mmHg (95% CI: –0.25– –0.04, P<.01) change in orthostatic diastolic BP recovery, for minimally and fully adjusted models respectively. HR recovery was not significantly associated with BrainPAD.
Conclusion
These results demonstrate that impaired systolic and diastolic BP recovery after standing is associated with accelerated brain aging in older individuals. This suggests that the BP response to standing, measured using beat-to-beat monitoring, has potential to be used as a marker of accelerated brain aging, relying on a simple procedure and devices that are easily accessible for clinical use.
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Affiliation(s)
- MA Shirsath
- University of Dublin The Irish Longitudinal Study on Aging (TILDA), School of Medicine, Trinity College, , Dublin, Ireland
| | - J O'Connor
- Queen’s University School of Medicine, Dentistry and Biomedical Sciences, The Patrick G Johnston Centre for Cancer Research, , Belfast, United Kingdom
- University of Dublin The Irish Longitudinal Study on Aging (TILDA), School of Medicine, Trinity College, , Dublin, Ireland
| | - R Boyle
- University of Dublin Trinity College Institute of Neuroscience, Trinity College, , Dublin, Ireland
| | - L Newman
- University of Dublin The Irish Longitudinal Study on Aging (TILDA), School of Medicine, Trinity College, , Dublin, Ireland
| | - R Whelan
- University of Dublin Trinity College Institute of Neuroscience, Trinity College, , Dublin, Ireland
- Trinity College Dublin Global Brain Health Institute, Trinity College, , Dublin, Ireland
| | - S Knight
- University of Dublin The Irish Longitudinal Study on Aging (TILDA), School of Medicine, Trinity College, , Dublin, Ireland
| | - J Meaney
- St. James’s Hospital The National Centre for Advanced Medical Imaging (CAMI), , Dublin, Ireland
| | - RA Kenny
- University of Dublin The Irish Longitudinal Study on Aging (TILDA), School of Medicine, Trinity College, , Dublin, Ireland
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Knight S, Boyle R, Newman L, Davis J, Rizzo R, Duggan E, De Looze C, Whelan R, Kenny RA, Romero-Ortuno R. 78 HIGHER NEUROVASCULAR SIGNAL ENTROPY IS ASSOCIATED WITH ACCELERATED BRAIN AGEING. Age Ageing 2021. [DOI: 10.1093/ageing/afab219.78] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2023] Open
Abstract
Abstract
Background
Often chronological age is not the most accurate marker of an individual’s health status since ageing is a heterogeneous process across individuals. Machine learning can be used to quantify the relationship between structural brain MRI data and chronological age, to estimate an individual’s ‘brain age’, which, when subtracted from chronological age, provides a brain predicted-age difference score (BrainPAD) [1]. BrainPAD reflects the biological ageing of the brain. Increased complexity in neurovascular signals has been shown to be associated with poorer cognitive performance and physical frailty [2]. The aim of this study was to investigate associations between the complexity of frontal-lobe oxygenation (tissue saturation index (TSI)) data and BrainPAD in a cohort of older community-dwelling adults.
Methods
To calculate BrainPAD, machine learning was applied to 1,359 T1-weighted MRI brain scans from various open-access repositories, and this model was subsequently applied to MRI data acquired from the study cohort. TSI was non-invasively measured in the left frontal lobe using near-infrared spectroscopy. TSI data were acquired continuously during five minutes of supine rest and the last minute was utilized in this analysis. The complexity of TSI signals was quantified using sample entropy (SampEn). Multivariable linear regression was employed, controlling for age, sex, education, antihypertensive medications, diabetes, cardiovascular conditions, smoking, alcohol, depression, BMI, physical activity, and blood pressure.
Results
Complete data were available for 397 individuals (age: 67.9 ± 7.7 years; 53.7% female). An increase in TSI SampEn of 0.1 was associated with an increase in BrainPAD of 0.9 years (P = 0.007, 95%CIs: 0.3 to 1.6). Similar results were found with and without the inclusion of chronological age in the models.
Conclusion
This study reports significant associations between higher complexity in peripherally measured frontal lobe oxygenation concentration and accelerated brain ageing.
References
1. Boyle R. et al. Brain Imaging and Behavior. 15,327–345 (2021) https://doi.org/10.1007/s11682-020-00260-3.
2. Knight S. et al. Entropy. 23(1):4 (2021) https://doi.org/10.3390/e23010004.
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Affiliation(s)
- S Knight
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - R Boyle
- Trinity College Institute of Neuroscience, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - L Newman
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - J Davis
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - R Rizzo
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - E Duggan
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - C De Looze
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - R Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, the University of Dublin , Dublin, Ireland
| | - R A Kenny
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- Mercer’s Institute for Successful Ageing, St James’s Hospital , Dublin, Ireland
| | - R Romero-Ortuno
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- School of Medicine, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, the University of Dublin , Dublin, Ireland
- Mercer’s Institute for Successful Ageing, St James’s Hospital , Dublin, Ireland
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Boyle R, Knight SP, De Looze C, Carey D, Scarlett S, Stern Y, Robertson IH, Kenny RA, Whelan R. Verbal intelligence is a more robust cross-sectional measure of cognitive reserve than level of education in healthy older adults. Alzheimers Res Ther 2021; 13:128. [PMID: 34253231 PMCID: PMC8276413 DOI: 10.1186/s13195-021-00870-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 06/28/2021] [Indexed: 01/02/2023]
Abstract
BACKGROUND Cognitive reserve is most commonly measured using socio-behavioural proxy variables. These variables are easy to collect, have a straightforward interpretation, and are widely associated with reduced risk of dementia and cognitive decline in epidemiological studies. However, the specific proxies vary across studies and have rarely been assessed in complete models of cognitive reserve (i.e. alongside both a measure of cognitive outcome and a measure of brain structure). Complete models can test independent associations between proxies and cognitive function in addition to the moderation effect of proxies on the brain-cognition relationship. Consequently, there is insufficient empirical evidence guiding the choice of proxy measures of cognitive reserve and poor comparability across studies. METHOD In a cross-sectional study, we assessed the validity of 5 common proxies (education, occupational complexity, verbal intelligence, leisure activities, and exercise) and all possible combinations of these proxies in 2 separate community-dwelling older adult cohorts: The Irish Longitudinal Study on Ageing (TILDA; N = 313, mean age = 68.9 years, range = 54-88) and the Cognitive Reserve/Reference Ability Neural Network Study (CR/RANN; N = 234, mean age = 64.49 years, range = 50-80). Fifteen models were created with 3 brain structure variables (grey matter volume, hippocampal volume, and mean cortical thickness) and 5 cognitive variables (verbal fluency, processing speed, executive function, episodic memory, and global cognition). RESULTS No moderation effects were observed. There were robust positive associations with cognitive function, independent of brain structure, for 2 individual proxies (verbal intelligence and education) and 16 composites (i.e. combinations of proxies). Verbal intelligence was statistically significant in all models. Education was significant only in models with executive function as the cognitive outcome variable. Three robust composites were observed in more than two-thirds of brain-cognition models: the composites of (1) occupational complexity and verbal intelligence, (2) education and verbal intelligence, and (3) education, occupational complexity, and verbal intelligence. However, no composite had larger average effects nor was more robust than verbal intelligence alone. CONCLUSION These results support the use of verbal intelligence as a proxy measure of CR in cross-sectional studies of cognitively healthy older adults.
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Affiliation(s)
- R Boyle
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
| | - S P Knight
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - C De Looze
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - D Carey
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - S Scarlett
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
| | - Y Stern
- Cognitive Neuroscience Division, Department of Neurology, Columbia University, New York City, USA
| | - I H Robertson
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland
| | - R A Kenny
- The Irish Longitudinal Study on Ageing, Trinity College Dublin, Dublin, Ireland
- Mercer's Institute for Successful Ageing, St. James's Hospital, Dublin, Ireland
| | - R Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin, Ireland.
- Global Brain Health Institute, Trinity College Dublin, Dublin, Ireland.
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Menconi A, Sokale AO, Mendoza SM, Whelan R, Doranalli K. Effect of Bacillus subtilis DSM 32315 under Different Necrotic Enteritis Models in Broiler Chickens: A Meta-Analysis of Five Independent Research Trials. Avian Dis 2021; 64:379-385. [PMID: 33205174 DOI: 10.1637/aviandiseases-d-19-00116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 04/01/2020] [Indexed: 11/05/2022]
Abstract
Challenge models are needed to understand the pathogenesis of necrotic enteritis (NE) and provide the basis of evaluating nonantibiotic feed-additive interventions. In the category of nonantibiotic feed additives, the application of probiotics to improve intestinal health and growth performance of broiler chickens in the face of an NE challenge has been well described. However, it is crucial to evaluate the consistency of specific probiotics for mitigating the disease challenge and improving performance. Therefore, a meta-analysis of five independent research trials was conducted with the objective of evaluating the effect of Bacillus subtilis DSM 32315 (probiotic) on body weight gain (BWG), feed conversion ratio (FCR), NE mortality, and lesion score (LS) of broiler chickens challenged with NE. These independent studies were conducted in three countries (the United States, Thailand, and Finland). The statistical analysis used fixed and random effects to estimate the mean effect size (MES) of the difference between NE-challenged birds (control) and NE-challenged probiotic-fed birds and the 95% confidence interval of MES. A meta-regression was performed to evaluate heterogeneity (MES variance) among studies. The statistical analysis was performed using a robust variance estimation strategy with a SAS macro. Probiotic-supplemented birds had a significantly higher BWG (MES = 1.04, P = 0.009) and a significantly lower FCR (MES = -1.39, P = 0.020), NE mortality (MES = -1.15, P = 0.012), and LS (MES = -1.29, P = 0.045). Response variables of BWG (Q = 2.81, P = 0.560) and NE mortality (Q = 5.60, P = 0.354) did not present heterogeneity. Heterogeneity was found for FCR (Q = 10.34, P = 0.035) and LS (Q = 16.13, P = 0.001). Overall, dietary supplementation of B. subtilis DSM 32315 significantly improved BWG and reduced FCR, mortality, and LS in a repeatable large-scale manner.
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Affiliation(s)
- A Menconi
- Evonik Corporation, 1701 Barrett Lakes Blvd., Kennesaw, GA, 30144
| | - A O Sokale
- Evonik Corporation, 1701 Barrett Lakes Blvd., Kennesaw, GA, 30144
| | - S M Mendoza
- Evonik Corporation, 1701 Barrett Lakes Blvd., Kennesaw, GA, 30144
| | - R Whelan
- Evonik Nutrition & Care GmbH, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany
| | - K Doranalli
- Evonik Nutrition & Care GmbH, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, Germany
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Rueda-Delgado LM, O'Halloran L, Enz N, Ruddy KL, Kiiski H, Bennett M, Farina F, Jollans L, Vahey N, Whelan R. Brain event-related potentials predict individual differences in inhibitory control. Int J Psychophysiol 2021; 163:22-34. [PMID: 30936044 DOI: 10.1016/j.ijpsycho.2019.03.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 08/03/2018] [Revised: 03/21/2019] [Accepted: 03/26/2019] [Indexed: 11/18/2022]
Abstract
Stop-signal reaction time (SSRT), the time needed to cancel an already-initiated motor response, quantifies individual differences in inhibitory control. Electrophysiological correlates of SSRT have primarily focused on late event-related potential (ERP) components over midline scalp regions from successfully inhibited stop trials. SSRT is robustly associated with the P300, there is mixed evidence for N200 involvement, and there is little information on the role of early ERP components. Here, machine learning was first used to interrogate ERPs during both successful and failed stop trials from 64 scalp electrodes at 4 ms resolution (n = 148). The most predictive model included data from both successful and failed stop trials, with a cross-validated Pearson's r of 0.32 between measured and predicted SSRT, significantly higher than null models. From successful stop trials, spatio-temporal features overlapping the N200 in right frontal areas and the P300 in frontocentral areas predicted SSRT, as did early ERP activity (<200 ms). As a demonstration of the reproducibility of these findings, the application of this model to a separate dataset of 97 participants was also significant (r = 0.29). These results show that ERPs during failed stops are relevant to SSRT, and that both early and late ERP activity contribute to individual differences in SSRT. Notably, the right lateralized N200, which predicted SSRT here, is not often observed in neurotypical adults. Both the ascending slope and peak of the P300 component predicted SSRT. These results were replicable, both within the training sample and when applied to ERPs from a separate dataset.
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Affiliation(s)
| | - L O'Halloran
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - N Enz
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - K L Ruddy
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - H Kiiski
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - M Bennett
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - F Farina
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - L Jollans
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - N Vahey
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland
| | - R Whelan
- School of Psychology, Trinity College Dublin, Dublin 2, Ireland; Global Brain Health Institute, Trinity College Dublin, Dublin 2, Ireland.
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Teoh T, Powell J, Kelly J, McDonnell C, Whelan R, O'Connell N, Dunne C. Outcomes of point-of-care testing for influenza in the emergency department of a tertiary referral hospital in Ireland. J Hosp Infect 2021; 110:45-51. [DOI: 10.1016/j.jhin.2021.01.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 01/12/2021] [Accepted: 01/12/2021] [Indexed: 12/25/2022]
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Farina FR, Emek-Savaş DD, Rueda-Delgado L, Boyle R, Kiiski H, Yener G, Whelan R. A comparison of resting state EEG and structural MRI for classifying Alzheimer's disease and mild cognitive impairment. Neuroimage 2020; 215:116795. [PMID: 32278090 DOI: 10.1016/j.neuroimage.2020.116795] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [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: 05/16/2019] [Revised: 03/27/2020] [Accepted: 03/28/2020] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is the leading cause of dementia, accounting for 70% of cases worldwide. By 2050, dementia prevalence will have tripled, with most new cases occurring in low- and middle-income countries. Mild cognitive impairment (MCI) is a stage between healthy aging and dementia, marked by cognitive deficits that do not impair daily living. People with MCI are at increased risk of dementia, with an average progression rate of 39% within 5 years. There is urgent need for low-cost, accessible and objective methods to facilitate early dementia detection. Electroencephalography (EEG) has potential to address this need due to its low cost and portability. Here, we collected resting state EEG, structural MRI (sMRI) and rich neuropsychological data from older adults (55+ years) with AD, amnestic MCI (aMCI) and healthy controls (~60 per group). We evaluated a range of candidate EEG markers (i.e., frequency band power and functional connectivity) for AD and aMCI classification and compared their performance with sMRI. We also tested a combined EEG and cognitive classification model (using Mini-Mental State Examination; MMSE). sMRI outperformed resting state EEG at classifying AD (AUCs = 1.00 vs 0.76, respectively). However, both EEG and sMRI were only moderately good at distinguishing aMCI from healthy aging (AUCs = 0.67-0.73), and neither method achieved sensitivity above 70%. The addition of EEG to MMSE scores had no added benefit relative to MMSE scores alone. This is the first direct comparison of EEG and sMRI for classification of AD and aMCI.
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Affiliation(s)
- F R Farina
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland.
| | - D D Emek-Savaş
- Department of Psychology, Faculty of Letters, Dokuz Eylul University, Izmir, 35160, Turkey; Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, 35340, Turkey; Global Brain Health Institute, Trinity College Dublin, Dublin 2, Ireland
| | - L Rueda-Delgado
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - R Boyle
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - H Kiiski
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland
| | - G Yener
- Department of Neurosciences, Institute of Health Sciences, Dokuz Eylul University, Izmir, 35340, Turkey; Department of Neurology, Dokuz Eylul University Medical School, Izmir, 35340, Turkey
| | - R Whelan
- Trinity College Institute of Neuroscience, Trinity College Dublin, Dublin 2, Ireland; Global Brain Health Institute, Trinity College Dublin, Dublin 2, Ireland.
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He Y, Kim K, Jinno C, Wu Z, Whelan R, Doranalli K, Liu Y. 175 Effects of Bacillus spp. probiotics on growth performance, diarrhea, and systemic immunity of weaned pigs experimentally infected with an enterotoxigenic Escherichia coli. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Y He
- University of California,Davis, Davis, CA, United States
| | - K Kim
- University of California,Davis, Davis, CA, United States
| | - C Jinno
- University of California,Davis, Davis, CA, United States
| | - Z Wu
- University of California,Davis, Davis, CA, United States
| | - R Whelan
- Evonik Nutrition & Care GmbH,HanauWolfgang, Germany
| | - K Doranalli
- Evonik Nutrition & Care GmbH,HanauWolfgang, Germany
| | - Y Liu
- University of California,Davis, Davis, CA, United States
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Kim K, Whelan R, Sokale A, Liu Y. PSIV-29 Effects of dietary β-glucan on intestinal gene expression of weanling pigs experimentally infected with a pathogenic E. coli. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- K Kim
- University of California,Davis, CA, United States
| | - R Whelan
- Evonik Nutrition & Care GmbH,HanauWolfgang, Germany
| | - A Sokale
- Evonik Corporation,Kennesaw, GA, United States
| | - Y Liu
- University of California,Davis, CA, United States
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Román LS, Menon BK, Blasco J, Hernández-Pérez M, Dávalos A, Majoie CBLM, Campbell BCV, Guillemin F, Lingsma H, Anxionnat R, Epstein J, Saver JL, Marquering H, Wong JH, Lopes D, Reimann G, Desal H, Dippel DWJ, Coutts S, du Mesnil de Rochemont R, Yavagal D, Ferre JC, Roos YBWEM, Liebeskind DS, Lenthall R, Molina C, Al Ajlan FS, Reddy V, Dowlatshahi D, Sourour NA, Oppenheim C, Mitha AP, Davis SM, Weimar C, van Oostenbrugge RJ, Cobo E, Kleinig TJ, Donnan GA, van der Lugt A, Demchuk AM, Berkhemer OA, Boers AMM, Ford GA, Muir KW, Brown BS, Jovin T, van Zwam WH, Mitchell PJ, Hill MD, White P, Bracard S, Goyal M, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S, Wakhloo A, Moonis M, Henniger N, Goddeau R, van den Berg R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Tunguturi A, Onteddu S, Carandang R, Howk M, Koudstaal PJ, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Meler P, Huerga E, Gelabert S, Coscojuela P, van Zwam WH, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Rovira A, Molina CA, Millán M, Muñoz L, Roos YB, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, García Bermejo P, Remollo S, Castaño C, García-Sort R, van der Lugt A, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Dávalos A, Chamorro A, Urra X, Obach V, van Oostenbrugge RJ, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Ariño H, Aceituno A, Rudilosso S, Renu A, Majoie CB, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Quesada H, Rubio F, Cano L, Lara B, Dippel DW, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Brown MM, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Liebig T, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Stijnen T, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Mutlu G, Rosso C, Szatmary Z, Yger M, Andersson T, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Leautaud A, Renkes C, Serre I, Desal H, Mattle H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Wahlgren N, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck A, Sevin-Allouet M, Toulgoat F, Wiertlewski S, Gauvrit JY, Ronziere T, Cahagne V, van der Heijden E, Ferre JC, Pinel JF, Raoult H, Mas JL, Meder JF, Al Najjar-Carpentier AA, Birchenall J, Bodiguel E, Calvet D, Domigo V, Ghannouti N, Godon-Hardy S, Guiraud V, Lamy C, Majhadi L, Morin L, Naggara O, Trystram D, Turc G, Berge J, Sibon I, Fleitour N, Menegon P, Barreau X, Rouanet F, Debruxelles S, Kazadi A, Renou P, Fleury O, Pasco-Papon A, Dubas F, Caroff J, Hooijenga I, Godard Ducceschi S, Hamon MA, Lecluse A, Marc G, Giroud M, Ricolfi F, Bejot Y, Chavent A, Gentil A, Kazemi A, Puppels C, Osseby GV, Voguet C, Mahagne MH, Sedat J, Chau Y, Suissa L, Lachaud S, Houdart E, Stapf C, Buffon Porcher F, Pellikaan W, Chabriat H, Guedin P, Herve D, Jouvent E, Mawet J, Saint-Maurice JP, Schneble HM, Turjman F, Nighoghossian N, Berhoune NN, Geerling A, Bouhour F, Cho TH, Derex L, Felix S, Gervais-Bernard H, Gory B, Manera L, Mechtouff L, Ritzenthaler T, Riva R, Lindl-Velema A, Salaris Silvio F, Tilikete C, Blanc R, Obadia M, Bartolini MB, Gueguen A, Piotin M, Pistocchi S, Redjem H, Drouineau J, van Vemde G, Neau JP, Godeneche G, Lamy M, Marsac E, Velasco S, Clavelou P, Chabert E, Bourgois N, Cornut-Chauvinc C, Ferrier A, de Ridder A, Gabrillargues J, Jean B, Marques AR, Vitello N, Detante O, Barbieux M, Boubagra K, Favre Wiki I, Garambois K, Tahon F, Greebe P, Ashok V, Voguet C, Coskun O, Guedin P, Rodesch G, Lapergue B, Bourdain F, Evrard S, Graveleau P, Decroix JP, de Bont-Stikkelbroeck J, Wang A, Sellal F, Ahle G, Carelli G, Dugay MH, Gaultier C, Lebedinsky AP, Lita L, Musacchio RM, Renglewicz-Destuynder C, de Meris J, Tournade A, Vuillemet F, Montoro FM, Mounayer C, Faugeras F, Gimenez L, Labach C, Lautrette G, Denier C, Saliou G, Janssen K, Chassin O, Dussaule C, Melki E, Ozanne A, Puccinelli F, Sachet M, Sarov M, Bonneville JF, Moulin T, Biondi A, Struijk W, De Bustos Medeiros E, Vuillier F, Courtheoux P, Viader F, Apoil-Brissard M, Bataille M, Bonnet AL, Cogez J, Kazemi A, Touze E, Licher S, Leclerc X, Leys D, Aggour M, Aguettaz P, Bodenant M, Cordonnier C, Deplanque D, Girot M, Henon H, Kalsoum E, Boodt N, Lucas C, Pruvo JP, Zuniga P, Bonafé A, Arquizan C, Costalat V, Machi P, Mourand I, Riquelme C, Bounolleau P, Ros A, Arteaga C, Faivre A, Bintner M, Tournebize P, Charlin C, Darcel F, Gauthier-Lasalarie P, Jeremenko M, Mouton S, Zerlauth JB, Venema E, Lamy C, Hervé D, Hassan H, Gaston A, Barral FG, Garnier P, Beaujeux R, Wolff V, Herbreteau D, Debiais S, Slokkers I, Murray A, Ford G, Muir KW, White P, Brown MM, Clifton A, Freeman J, Ford I, Markus H, Wardlaw J, Ganpat RJ, Lees KR, Molyneux A, Robinson T, Lewis S, Norrie J, Robertson F, Perry R, Dixit A, Cloud G, Clifton A, Mulder M, Madigan J, Roffe C, Nayak S, Lobotesis K, Smith C, Herwadkar A, Kandasamy N, Goddard T, Bamford J, Subramanian G, Saiedie N, Lenthall R, Littleton E, Lamin S, Storey K, Ghatala R, Banaras A, Aeron-Thomas J, Hazel B, Maguire H, Veraque E, Heshmatollah A, Harrison L, Keshvara R, Cunningham J, Schipperen S, Vinken S, van Boxtel T, Koets J, Boers M, Santos E, Borst J, Jansen I, Kappelhof M, Lucas M, Geuskens R, Barros RS, Dobbe R, Csizmadia M, Hill MD, Goyal M, Demchuk AM, Menon BK, Eesa M, Ryckborst KJ, Wright MR, Kamal NR, Andersen L, Randhawa PA, Stewart T, Patil S, Minhas P, Almekhlafi M, Mishra S, Clement F, Sajobi T, Shuaib A, Montanera WJ, Roy D, Silver FL, Jovin TG, Frei DF, Sapkota B, Rempel JL, Thornton J, Williams D, Tampieri D, Poppe AY, Dowlatshahi D, Wong JH, Mitha AP, Subramaniam S, Hull G, Lowerison MW, Sajobi T, Salluzzi M, Wright MR, Maxwell M, Lacusta S, Drupals E, Armitage K, Barber PA, Smith EE, Morrish WF, Coutts SB, Derdeyn C, Demaerschalk B, Yavagal D, Martin R, Brant R, Yu Y, Willinsky RA, Montanera WJ, Weill A, Kenney C, Aram H, Stewart T, Stys PK, Watson TW, Klein G, Pearson D, Couillard P, Trivedi A, Singh D, Klourfeld E, Imoukhuede O, Nikneshan D, Blayney S, Reddy R, Choi P, Horton M, Musuka T, Dubuc V, Field TS, Desai J, Adatia S, Alseraya A, Nambiar V, van Dijk R, Wong JH, Mitha AP, Morrish WF, Eesa M, Newcommon NJ, Shuaib A, Schwindt B, Butcher KS, Jeerakathil T, Buck B, Khan K, Naik SS, Emery DJ, Owen RJ, Kotylak TB, Ashforth RA, Yeo TA, McNally D, Siddiqui M, Saqqur M, Hussain D, Kalashyan H, Manosalva A, Kate M, Gioia L, Hasan S, Mohammad A, Muratoglu M, Williams D, Thornton J, Cullen A, Brennan P, O'Hare A, Looby S, Hyland D, Duff S, McCusker M, Hallinan B, Lee S, McCormack J, Moore A, O'Connor M, Donegan C, Brewer L, Martin A, Murphy S, O'Rourke K, Smyth S, Kelly P, Lynch T, Daly T, O'Brien P, O'Driscoll A, Martin M, Daly T, Collins R, Coughlan T, McCabe D, Murphy S, O'Neill D, Mulroy M, Lynch O, Walsh T, O'Donnell M, Galvin T, Harbison J, McElwaine P, Mulpeter K, McLoughlin C, Reardon M, Harkin E, Dolan E, Watts M, Cunningham N, Fallon C, Gallagher S, Cotter P, Crowe M, Doyle R, Noone I, Lapierre M, Coté VA, Lanthier S, Odier C, Durocher A, Raymond J, Weill A, Daneault N, Deschaintre Y, Jankowitz B, Baxendell L, Massaro L, Jackson-Graves C, Decesare S, Porter P, Armbruster K, Adams A, Billigan J, Oakley J, Ducruet A, Jadhav A, Giurgiutiu DV, Aghaebrahim A, Reddy V, Hammer M, Starr M, Totoraitis V, Wechsler L, Streib S, Rangaraju S, Campbell D, Rocha M, Gulati D, Silver FL, Krings T, Kalman L, Cayley A, Williams J, Stewart T, Wiegner R, Casaubon LK, Jaigobin C, del Campo JM, Elamin E, Schaafsma JD, Willinsky RA, Agid R, Farb R, ter Brugge K, Sapkoda BL, Baxter BW, Barton K, Knox A, Porter A, Sirelkhatim A, Devlin T, Dellinger C, Pitiyanuvath N, Patterson J, Nichols J, Quarfordt S, Calvert J, Hawk H, Fanale C, Frei DF, Bitner A, Novak A, Huddle D, Bellon R, Loy D, Wagner J, Chang I, Lampe E, Spencer B, Pratt R, Bartt R, Shine S, Dooley G, Nguyen T, Whaley M, McCarthy K, Teitelbaum J, Tampieri D, Poon W, Campbell N, Cortes M, Dowlatshahi D, Lum C, Shamloul R, Robert S, Stotts G, Shamy M, Steffenhagen N, Blacquiere D, Hogan M, AlHazzaa M, Basir G, Lesiuk H, Iancu D, Santos M, Choe H, Weisman DC, Jonczak K, Blue-Schaller A, Shah Q, MacKenzie L, Klein B, Kulandaivel K, Kozak O, Gzesh DJ, Harris LJ, Khoury JS, Mandzia J, Pelz D, Crann S, Fleming L, Hesser K, Beauchamp B, Amato-Marzialli B, Boulton M, Lopez-Ojeda P, Sharma M, Lownie S, Chan R, Swartz R, Howard P, Golob D, Gladstone D, Boyle K, Boulos M, Hopyan J, Yang V, Da Costa L, Holmstedt CA, Turk AS, Navarro R, Jauch E, Ozark S, Turner R, Phillips S, Shankar J, Jarrett J, Gubitz G, Maloney W, Vandorpe R, Schmidt M, Heidenreich J, Hunter G, Kelly M, Whelan R, Peeling L, Burns PA, Hunter A, Wiggam I, Kerr E, Watt M, Fulton A, Gordon P, Rennie I, Flynn P, Smyth G, O'Leary S, Gentile N, Linares G, McNelis P, Erkmen K, Katz P, Azizi A, Weaver M, Jungreis C, Faro S, Shah P, Reimer H, Kalugdan V, Saposnik G, Bharatha A, Li Y, Kostyrko P, Santos M, Marotta T, Montanera W, Sarma D, Selchen D, Spears J, Heo JH, Jeong K, Kim DJ, Kim BM, Kim YD, Song D, Lee KJ, Yoo J, Bang OY, Rho S, Lee J, Jeon P, Kim KH, Cha J, Kim SJ, Ryoo S, Lee MJ, Sohn SI, Kim CH, Ryu HG, Hong JH, Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, 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M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D. Imaging features and safety and efficacy of endovascular stroke treatment: a meta-analysis of individual patient-level data. Lancet Neurol 2018; 17:895-904. [DOI: 10.1016/s1474-4422(18)30242-4] [Citation(s) in RCA: 213] [Impact Index Per Article: 35.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 06/11/2018] [Accepted: 06/12/2018] [Indexed: 11/29/2022]
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Boulanger JM, Lindsay MP, Gubitz G, Smith EE, Stotts G, Foley N, Bhogal S, Boyle K, Braun L, Goddard T, Heran MKS, Kanya-Forster N, Lang E, Lavoie P, McClelland M, O’Kelly C, Pageau P, Pettersen J, Purvis H, Shamy M, Tampieri D, vanAdel B, Verbeek R, Blacquiere D, Casaubon L, Ferguson D, Hegedus Y, Jacquin GJ, Kelly M, Kamal N, Linkewich B, Lum C, Mann B, Milot G, Newcommon N, Poirier P, Simpkin W, Snieder E, Trivedi A, Whelan R, Eustace M, Smitko E, Butcher K. Canadian Stroke Best Practice Recommendations for Acute Stroke Management: Prehospital, Emergency Department, and Acute Inpatient Stroke Care, 6th Edition, Update 2018. Int J Stroke 2018; 13:949-984. [DOI: 10.1177/1747493018786616] [Citation(s) in RCA: 191] [Impact Index Per Article: 31.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The 2018 update of the Canadian Stroke Best Practice Recommendations for Acute Stroke Management, 6th edition, is a comprehensive summary of current evidence-based recommendations, appropriate for use by healthcare providers and system planners caring for persons with very recent symptoms of acute stroke or transient ischemic attack. The recommendations are intended for use by a interdisciplinary team of clinicians across a wide range of settings and highlight key elements involved in prehospital and Emergency Department care, acute treatments for ischemic stroke, and acute inpatient care. The most notable changes included in this 6th edition are the renaming of the module and its integration of the formerly separate modules on prehospital and emergency care and acute inpatient stroke care. The new module, Acute Stroke Management: Prehospital, Emergency Department, and Acute Inpatient Stroke Care is now a single, comprehensive module addressing the most important aspects of acute stroke care delivery. Other notable changes include the removal of two sections related to the emergency management of intracerebral hemorrhage and subarachnoid hemorrhage. These topics are covered in a new, dedicated module, to be released later this year. The most significant recommendation updates are for neuroimaging; the extension of the time window for endovascular thrombectomy treatment out to 24 h; considerations for treating a highly selected group of people with stroke of unknown time of onset; and recommendations for dual antiplatelet therapy for a limited duration after acute minor ischemic stroke and transient ischemic attack. This module also emphasizes the need for increased public and healthcare provider’s recognition of the signs of stroke and immediate actions to take; the important expanding role of paramedics and all emergency medical services personnel; arriving at a stroke-enabled Emergency Department without delay; and launching local healthcare institution code stroke protocols. Revisions have also been made to the recommendations for the triage and assessment of risk of recurrent stroke after transient ischemic attack/minor stroke and suggested urgency levels for investigations and initiation of management strategies. The goal of this updated guideline is to optimize stroke care across Canada, by reducing practice variations and reducing the gap between current knowledge and clinical practice.
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Affiliation(s)
- JM Boulanger
- Charles-LeMoyne Hospital, Neurology, Longueuil, Quebec, Canada
- Université de Sherbrooke, Faculty of Medicine, Sherbrooke, Quebec, Canada
| | - MP Lindsay
- Heart and Stroke Foundation of Canada, Toronto, Ontario, Canada
| | - G Gubitz
- Queen Elizabeth II Health Sciences Center, Halifax, Nova Scotia, Canada
- Department of Medicine (Neurology), Dalhousie University, Halifax, Nova Scotia, Canada
- Canadian Stroke Consortium, Oakville, Ontario, Canada
| | - EE Smith
- Calgary Stroke Program, Calgary, Alberta, Canada
- Hotchkiss Brain Institute, University of Calgary Cumming School of Medicine, Calgary, Alberta, Canada
| | - G Stotts
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - N Foley
- workHORSE Consulting Services, London, Ontario, Canada
| | - S Bhogal
- workHORSE Consulting Services, London, Ontario, Canada
| | - K Boyle
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - L Braun
- Emergency Medical Services, Winnipeg, Manitoba, Canada
| | - T Goddard
- Department of Medicine (Neurology), Dalhousie University, Halifax, Nova Scotia, Canada
- Department of Emergency Medicine, Valley Regional Hospital, Kentville, Nova Scotia, Canada
| | - MKS Heran
- Vancouver General Hospital, Vancouver, British Columbia, Canada
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - N Kanya-Forster
- Northern Ontario School of Medicine, Sudbury, Ontario, Canada
- Timmins & District Hospital, Timmins, Ontario, Canada
| | - E Lang
- Department of Emergency Medicine, University of Calgary, Calgary, Alberta, Canada
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
| | - P Lavoie
- Department of Surgery, Laval University, Quebec, Canada
| | - M McClelland
- Interior Health Research Department, Kelowna General Hospital, Kelowna, British Columbia, Canada
| | - C O’Kelly
- Division of Neurosurgery, Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - P Pageau
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
- Department of Emergency Medicine, Ottawa Hospital, Ottawa, Ontario, Canada
| | - J Pettersen
- Division of Neurology, Department of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - H Purvis
- Cancer Care Manitoba, Winnipeg, Manitoba, Canada
| | - M Shamy
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - D Tampieri
- Montreal Neurological Hospital and Institute, Montreal, Quebec, Canada
| | - B vanAdel
- Division of Neurology, Department of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - R Verbeek
- Canadian Association of Emergency Physicians, Ottawa, Ontario, Canada
- Department of Emergency Medicine, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - D Blacquiere
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- Saint John Regional Health Centre, Saint John, New Brunswick, Canada
| | - L Casaubon
- Canadian Stroke Consortium, Oakville, Ontario, Canada
- University Health Network (Toronto Western Hospital) Stroke Program, Toronto, Ontario, Canada
| | - D Ferguson
- Saint John Regional Health Centre, Saint John, New Brunswick, Canada
| | - Y Hegedus
- Vancouver Island Health Authority, Vancouver, British Columbia, Canada
| | - GJ Jacquin
- Centre hospitalier de l’université de Montréal, Montreal, Quebec, Canada
| | - M Kelly
- Division of Neurosurgery, Department of Surgery, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - N Kamal
- Calgary Stroke Program, Calgary, Alberta, Canada
| | - B Linkewich
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - C Lum
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - B Mann
- Alberta Health Services, Edmonton, Alberta, Canada
| | - G Milot
- CHU de Québec, Laval University, Laval, Quebec, Canada
| | - N Newcommon
- Calgary Stroke Program, Calgary, Alberta, Canada
| | - P Poirier
- Paramedic Association of Canada, Ottawa, Ontario, Canada
| | - W Simpkin
- Queen Elizabeth II Health Sciences Center, Halifax, Nova Scotia, Canada
| | - E Snieder
- Ottawa Stroke Program, Ottawa Hospital, Ottawa, Ontario, Canada
| | - A Trivedi
- Section of Neurology, Department of Internal Medicine, University of Manitoba, Winnipeg, Manitoba, Canada
| | - R Whelan
- University Hospital, Saskatoon, Saskatchewan, Canada
| | - M Eustace
- Health Sciences Centre, St. Johns, Newfoundland, Canada
| | - E Smitko
- Heart and Stroke Foundation of Canada, Toronto, Ontario, Canada
| | - K Butcher
- Division of Neurology, University of Alberta, Edmonton, Alberta, Canada
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Campbell BCV, van Zwam WH, Goyal M, Menon BK, Dippel DWJ, Demchuk AM, Bracard S, White P, Dávalos A, Majoie CBLM, van der Lugt A, Ford GA, de la Ossa NP, Kelly M, Bourcier R, Donnan GA, Roos YBWEM, Bang OY, Nogueira RG, Devlin TG, van den Berg LA, Clarençon F, Burns P, Carpenter J, Berkhemer OA, Yavagal DR, Pereira VM, Ducrocq X, Dixit A, Quesada H, Epstein J, Davis SM, Jansen O, Rubiera M, Urra X, Micard E, Lingsma HF, Naggara O, Brown S, Guillemin F, Muir KW, van Oostenbrugge RJ, Saver JL, Jovin TG, Hill MD, Mitchell PJ, Berkhemer OA, Fransen PSS, Beumer D, van den Berg LA, Lingsma HF, Yoo AJ, Schonewille WJ, Vos JA, Nederkoorn PJ, Wermer MJH, van Walderveen MAA, Staals J, Hofmeijer J, van Oostayen JA, Lycklama à Nijeholt GJ, Boiten J, Brouwer PA, Emmer BJ, de Bruijn SF, van Dijk LC, Kappelle J, Lo RH, van Dijk EJ, de Vries J, de Kort PL, van Rooij WJJ, van den Berg JS, van Hasselt BA, Aerden LA, Dallinga RJ, Visser MC, Bot JC, Vroomen PC, Eshghi O, Schreuder TH, Heijboer RJ, Keizer K, Tielbeek AV, den Hertog HM, Gerrits DG, van den Berg-Vos RM, Karas GB, Steyerberg EW, Flach Z, Marquering HA, Sprengers ME, Jenniskens SF, Beenen LF, van den Berg R, Koudstaal PJ, van Zwam WH, Roos YB, van der Lugt A, van Oostenbrugge RJ, Wakhloo A, Moonis M, Henninger N, Goddeau R, Massari F, Minaeian A, Lozano JD, Ramzan M, Stout C, Patel A, Majoie CB, Tunguturi A, Onteddu S, Carandang R, Howk M, Ribó M, Sanjuan E, Rubiera M, Pagola J, Flores A, Muchada M, Dippel DW, Meler P, Huerga E, Gelabert S, Coscojuela P, Tomasello A, Rodriguez D, Santamarina E, Maisterra O, Boned S, Seró L, Brown MM, Rovira A, Molina CA, Millán M, Muñoz L, Pérez de la Ossa N, Gomis M, Dorado L, López-Cancio E, Palomeras E, Munuera J, Liebig T, García Bermejo P, Remollo S, Castaño C, García-Sort R, Cuadras P, Puyalto P, Hernández-Pérez M, Jiménez M, Martínez-Piñeiro A, Lucente G, Stijnen T, Dávalos A, Chamorro A, Urra X, Obach V, Cervera A, Amaro S, Llull L, Codas J, Balasa M, Navarro J, Andersson T, Ariño H, Aceituno A, Rudilosso S, Renu A, Macho JM, San Roman L, Blasco J, López A, Macías N, Cardona P, Mattle H, Quesada H, Rubio F, Cano L, Lara B, de Miquel MA, Aja L, Serena J, Cobo E, Albers GW, Lees KR, Wahlgren N, Arenillas J, Roberts R, Minhas P, Al-Ajlan F, Salluzzi M, Zimmel L, Patel S, Eesa M, Martí-Fàbregas J, Jankowitz B, van der Heijden E, Serena J, Salvat-Plana M, López-Cancio E, Bracard S, Ducrocq X, Anxionnat R, Baillot PA, Barbier C, Derelle AL, Lacour JC, Ghannouti N, Richard S, Samson Y, Sourour N, Baronnet-Chauvet F, Clarencon F, Crozier S, Deltour S, Di Maria F, Le Bouc R, Leger A, Fleitour N, Mutlu G, Rosso C, Szatmary Z, Yger M, Zavanone C, Bakchine S, Pierot L, Caucheteux N, Estrade L, Kadziolka K, Hooijenga I, Leautaud A, Renkes C, Serre I, Desal H, Guillon B, Boutoleau-Bretonniere C, Daumas-Duport B, De Gaalon S, Derkinderen P, Evain S, Puppels C, Herisson F, Laplaud DA, Lebouvier T, Lintia-Gaultier A, Pouclet-Courtemanche H, Rouaud T, Rouaud Jaffrenou V, Schunck 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Chang HW, Lee CY, Rha J, Davis SM, Donnan GA, Campbell BCV, Mitchell PJ, Churilov L, Yan B, Dowling R, Yassi N, Oxley TJ, Wu TY, Silver G, McDonald A, McCoy R, Kleinig TJ, Scroop R, Dewey HM, Simpson M, Brooks M, Coulton B, Krause M, Harrington TJ, Steinfort B, Faulder K, Priglinger M, Day S, Phan T, Chong W, Holt M, Chandra RV, Ma H, Young D, Wong K, Wijeratne T, Tu H, Mackay E, Celestino S, Bladin CF, Loh PS, Gilligan A, Ross Z, Coote S, Frost T, Parsons MW, Miteff F, Levi CR, Ang T, Spratt N, Kaauwai L, Badve M, Rice H, de Villiers L, Barber PA, McGuinness B, Hope A, Moriarty M, Bennett P, Wong A, Coulthard A, Lee A, Jannes J, Field D, Sharma G, Salinas S, Cowley E, Snow B, Kolbe J, Stark R, King J, Macdonnell R, Attia J, D'Este C, Saver JL, Goyal M, Diener HC, Levy EI, Bonafé A, Mendes Pereira V, Jahan R, Albers GW, Cognard C, Cohen DJ, Hacke W, Jansen O, Jovin TG, Mattle HP, Nogueira RG, Siddiqui AH, Yavagal DR, von Kummer R, Smith W, Turjman F, Hamilton S, Chiacchierini R, Amar A, Sanossian N, Loh Y, Devlin T, Baxter B, Hawk H, Sapkota B, Quarfordt S, Sirelkhatim A, Dellinger C, Barton K, Reddy VK, Ducruet A, Jadhav A, Horev A, Giurgiutiu DV, Totoraitis V, Hammer M, Jankowitz B, Wechsler L, Rocha M, Gulati D, Campbell D, Star M, Baxendell L, Oakley J, Siddiqui A, Hopkins LN, Snyder K, Sawyer R, Hall S, Costalat V, Riquelme C, Machi P, Omer E, Arquizan C, Mourand I, Charif M, Ayrignac X, Menjot de Champfleur N, Leboucq N, Gascou G, Moynier M, du Mesnil de Rochemont R, Singer O, Berkefeld J, Foerch C, Lorenz M, Pfeilschifer W, Hattingen E, Wagner M, You SJ, Lescher S, Braun H, Dehkharghani S, Belagaje SR, Anderson A, Lima A, Obideen M, Haussen D, Dharia R, Frankel M, Patel V, Owada K, Saad A, Amerson L, Horn C, Doppelheuer S, Schindler K, Lopes DK, Chen M, Moftakhar R, Anton C, Smreczak M, Carpenter JS, Boo S, Rai A, Roberts T, Tarabishy A, Gutmann L, Brooks C, Brick J, Domico J, Reimann G, Hinrichs K, Becker M, Heiss E, Selle C, Witteler A, Al-Boutros S, Danch MJ, Ranft A, Rohde S, Burg K, Weimar C, Zegarac V, Hartmann C, Schlamann M, Göricke S, Ringlestein A, Wanke I, Mönninghoff C, Dietzold M, Budzik R, Davis T, Eubank G, Hicks WJ, Pema P, Vora N, Mejilla J, Taylor M, Clark W, Rontal A, Fields J, Peterson B, Nesbit G, Lutsep H, Bozorgchami H, Priest R, Ologuntoye O, Barnwell S, Dogan A, Herrick K, Takahasi C, Beadell N, Brown B, Jamieson S, Hussain MS, Russman A, Hui F, Wisco D, Uchino K, Khawaja Z, Katzan I, Toth G, Cheng-Ching E, Bain M, Man S, Farrag A, George P, John S, Shankar L, Drofa A, Dahlgren R, Bauer A, Itreat A, Taqui A, Cerejo R, Richmond A, Ringleb P, Bendszus M, Möhlenbruch M, Reiff T, Amiri H, Purrucker J, Herweh C, Pham M, Menn O, Ludwig I, Acosta I, Villar C, Morgan W, Sombutmai C, Hellinger F, Allen E, Bellew M, Gandhi R, Bonwit E, Aly J, Ecker RD, Seder D, Morris J, Skaletsky M, Belden J, Baker C, Connolly LS, Papanagiotou P, Roth C, Kastrup A, Politi M, Brunner F, Alexandrou M, Merdivan H, Ramsey C, Given II C, Renfrow S, Deshmukh V, Sasadeusz K, Vincent F, Thiesing JT, Putnam J, Bhatt A, Kansara A, Caceves D, Lowenkopf T, Yanase L, Zurasky J, Dancer S, Freeman B, Scheibe-Mirek T, Robison J, Rontal A, Roll J, Clark D, Rodriguez M, Fitzsimmons BFM, Zaidat O, Lynch JR, Lazzaro M, Larson T, Padmore L, Das E, Farrow-Schmidt A, Hassan A, Tekle W, Cate C, Jansen O, Cnyrim C, Wodarg F, Wiese C, Binder A, Riedel C, Rohr A, Lang N, Laufs H, Krieter S, Remonda L, Diepers M, Añon J, Nedeltchev K, Kahles T, Biethahn S, Lindner M, Chang V, Gächter C, Esperon C, Guglielmetti M, Arenillas Lara JF, Martínez Galdámez M, Calleja Sanz AI, Cortijo Garcia E, Garcia Bermejo P, Perez S, Mulero Carrillo P, Crespo Vallejo E, Ruiz Piñero M, Lopez Mesonero L, Reyes Muñoz FJ, Brekenfeld C, Buhk JH, Krützelmann A, Thomalla G, Cheng B, Beck C, Hoppe J, Goebell E, Holst B, Grzyska U, Wortmann G, Starkman S, Duckwiler G, Jahan R, Rao N, Sheth S, Ng K, Noorian A, Szeder V, Nour M, McManus M, Huang J, Tarpley J, Tateshima S, Gonzalez N, Ali L, Liebeskind D, Hinman J, Calderon-Arnulphi M, Liang C, Guzy J, Koch S, DeSousa K, Gordon-Perue G, Haussen D, Elhammady M, Peterson E, Pandey V, Dharmadhikari S, Khandelwal P, Malik A, Pafford R, Gonzalez P, Ramdas K, Andersen G, Damgaard D, Von Weitzel-Mudersbach P, Simonsen C, Ruiz de Morales Ayudarte N, Poulsen M, Sørensen L, Karabegovich S, Hjørringgaard M, Hjort N, Harbo T, Sørensen K, Deshaies E, Padalino D, Swarnkar A, Latorre JG, Elnour E, El-Zammar Z, Villwock M, Farid H, Balgude A, Cross L, Hansen K, Holtmannspötter M, Kondziella D, Hoejgaard J, Taudorf S, Soendergaard H, Wagner A, Cronquist M, Stavngaard T, Cortsen M, Krarup LH, Hyldal T, Haring HP, Guggenberger S, Hamberger M, Trenkler J, Sonnberger M, Nussbaumer K, Dominger C, Bach E, Jagadeesan BD, Taylor R, Kim J, Shea K, Tummala R, Zacharatos H, Sandhu D, Ezzeddine M, Grande A, Hildebrandt D, Miller K, Scherber J, Hendrickson A, Jumaa M, Zaidi S, Hendrickson T, Snyder V, Killer-Oberpfalzer M, Mutzenbach J, Weymayr F, Broussalis E, Stadler K, Jedlitschka A, Malek A, Mueller-Kronast N, Beck P, Martin C, Summers D, Day J, Bettinger I, Holloway W, Olds K, Arkin S, Akhtar N, Boutwell C, Crandall S, Schwartzman M, Weinstein C, Brion B, Prothmann S, Kleine J, Kreiser K, Boeckh-Behrens T, Poppert H, Wunderlich S, Koch ML, Biberacher V, Huberle A, Gora-Stahlberg G, Knier B, Meindl T, Utpadel-Fischler D, Zech M, Kowarik M, Seifert C, Schwaiger B, Puri A, Hou S. Effect of general anaesthesia on functional outcome in patients with anterior circulation ischaemic stroke having endovascular thrombectomy versus standard care: a meta-analysis of individual patient data. Lancet Neurol 2018; 17:47-53. [DOI: 10.1016/s1474-4422(17)30407-6] [Citation(s) in RCA: 129] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 10/05/2017] [Accepted: 10/11/2017] [Indexed: 10/18/2022]
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Kim K, Ehrlich A, Perng V, Chase J, Raybould H, Li X, Atwill ER, Whelan R, Sokale A, Liu Y. 069 Effects of dietary β-glucan on growth performance, diarrhea, and gut permeability of weanling pigs experimentally infected with a pathogenic Escherichia coli. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.069] [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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Mikita N, Simonoff E, Pine DS, Goodman R, Artiges E, Banaschewski T, Bokde AL, Bromberg U, Büchel C, Cattrell A, Conrod PJ, Desrivières S, Flor H, Frouin V, Gallinat J, Garavan H, Heinz A, Ittermann B, Jurk S, Martinot JL, Paillère Martinot ML, Nees F, Papadopoulos Orfanos D, Paus T, Poustka L, Smolka MN, Walter H, Whelan R, Schumann G, Stringaris A. Disentangling the autism-anxiety overlap: fMRI of reward processing in a community-based longitudinal study. Transl Psychiatry 2016; 6:e845. [PMID: 27351599 PMCID: PMC4931605 DOI: 10.1038/tp.2016.107] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 04/01/2016] [Accepted: 04/20/2016] [Indexed: 12/28/2022] Open
Abstract
Up to 40% of youth with autism spectrum disorder (ASD) also suffer from anxiety, and this comorbidity is linked with significant functional impairment. However, the mechanisms of this overlap are poorly understood. We investigated the interplay between ASD traits and anxiety during reward processing, known to be affected in ASD, in a community sample of 1472 adolescents (mean age=14.4 years) who performed a modified monetary incentive delay task as part of the Imagen project. Blood-oxygen-level dependent (BOLD) responses to reward anticipation and feedback were compared using a 2x2 analysis of variance test (ASD traits: low/high; anxiety symptoms: low/high), controlling for plausible covariates. In addition, we used a longitudinal design to assess whether neural responses during reward processing predicted anxiety at 2-year follow-up. High ASD traits were associated with reduced BOLD responses in dorsal prefrontal regions during reward anticipation and negative feedback. Participants with high anxiety symptoms showed increased lateral prefrontal responses during anticipation, but decreased responses following feedback. Interaction effects revealed that youth with combined ASD traits and anxiety, relative to other youth, showed high right insula activation when anticipating reward, and low right-sided caudate, putamen, medial and lateral prefrontal activations during negative feedback (all clusters PFWE<0.05). BOLD activation patterns in the right dorsal cingulate and right medial frontal gyrus predicted new-onset anxiety in participants with high but not low ASD traits. Our results reveal both quantitatively enhanced and qualitatively distinct neural correlates underlying the comorbidity between ASD traits and anxiety. Specific neural responses during reward processing may represent a risk factor for developing anxiety in ASD youth.
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Affiliation(s)
- N Mikita
- Department of Child and Adolescent Psychiatry, King's CollegeLondon, Institute of Psychiatry, Psychology & Neuroscience, London, UK,Departmentof Child and Adolescent Psychiatry, PO85, King's College London, Institute of Psychiatry, Psychology & Neuroscience, De Crespigny Park, London SE5 8AF, UK. E-mail:
| | - E Simonoff
- Department of Child and Adolescent Psychiatry, King's CollegeLondon, Institute of Psychiatry, Psychology & Neuroscience, London, UK,NIHR Biomedical Research Centre and Dementia Unit at SouthLondon and Maudsley NHS Foundation Trust and the Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - D S Pine
- Section on Development and Affective Neuroscience, National Institute of Mental Health, Bethesda, MD, USA
| | - R Goodman
- Department of Child and Adolescent Psychiatry, King's CollegeLondon, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - E Artiges
- Institut National de la Santé et de la Recherche Médicale, INSERM Unit 1000 “Neuroimaging & Psychiatry”, Service Hospitalier Frédéric Joliot, Orsay, France,University Paris-Sud 11, Orsay, France,University Paris Descartes - Sorbonne Paris Cité, Paris, France,Psychiatry Department, Orsay Hospital, Orsay, France
| | - T Banaschewski
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - A L Bokde
- Discipline of Psychiatry, School of Medicine and Trinity College Institute of Neuroscience, Trinity College, Dublin, Ireland
| | - U Bromberg
- University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - C Büchel
- University Medical Centre Hamburg-Eppendorf, Hamburg, Germany
| | - A Cattrell
- Medical Research Council - Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - P J Conrod
- Department of Psychiatry, Universite de Montreal, CHU Ste Justine Hospital, Montreal, QC, Canada,Department of Psychological Medicine and Psychiatry, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - S Desrivières
- Medical Research Council - Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - H Flor
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - V Frouin
- Neurospin, Commissariat à l'Energie Atomique, CEA-Saclay Center, Paris, France
| | - J Gallinat
- Department of Psychiatry and Psychotherapy, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - H Garavan
- Department of Psychiatry, University of Vermont, Burlington, VT, USA,Department of Psychology, University of Vermont, Burlington, VT, USA
| | - A Heinz
- Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - B Ittermann
- Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
| | - S Jurk
- Department of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany
| | - J L Martinot
- Institut National de la Santé et de la Recherche Médicale, INSERM Unit 1000 “Neuroimaging & Psychiatry”, Service Hospitalier Frédéric Joliot, Orsay, France,University Paris-Sud 11, Orsay, France,University Paris Descartes - Sorbonne Paris Cité, Paris, France,AP-HP, Department of Adolescent Psychopathology and Medicine, Maison de Solenn, Cochin Hospital, Paris, France
| | - M L Paillère Martinot
- Institut National de la Santé et de la Recherche Médicale, INSERM Unit 1000 “Neuroimaging & Psychiatry”, Service Hospitalier Frédéric Joliot, Orsay, France,University Paris-Sud 11, Orsay, France,University Paris Descartes - Sorbonne Paris Cité, Paris, France,AP-HP, Department of Adolescent Psychopathology and Medicine, Maison de Solenn, Cochin Hospital, Paris, France
| | - F Nees
- Department of Cognitive and Clinical Neuroscience, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | | | - T Paus
- Rotman Research Institute, Baycrest, Toronto, ON, Canada,Child Mind Institute, New York, NY, USA,Department of Psychology, University of Toronto, Toronto, ON, Canada,Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - L Poustka
- Department of Child and Adolescent Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany,Department of Child and Adolescent Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - M N Smolka
- Department of Psychiatry and Neuroimaging Center, Technische Universität Dresden, Dresden, Germany
| | - H Walter
- Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Charité, Universitätsmedizin Berlin, Berlin, Germany
| | - R Whelan
- Department of Psychology, University College Dublin, Dublin, Ireland
| | - G Schumann
- Medical Research Council - Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK
| | - A Stringaris
- Department of Child and Adolescent Psychiatry, King's CollegeLondon, Institute of Psychiatry, Psychology & Neuroscience, London, UK
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Garavan H, Brennan KL, Hester R, Whelan R. The neurobiology of successful abstinence. Curr Opin Neurobiol 2013; 23:668-74. [PMID: 23510740 PMCID: PMC3706547 DOI: 10.1016/j.conb.2013.01.029] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [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: 01/06/2013] [Revised: 01/28/2013] [Accepted: 01/28/2013] [Indexed: 11/29/2022]
Abstract
This review focuses on the neurobiological processes involved in achieving successful abstinence from drugs of abuse. While there is clinical and public health value in knowing if the deficits associated with drug use correct with abstinence, studying the neurobiology that underlies successful abstinence can also illuminate the processes that enable drug-dependent individuals to successfully quit. Here, we review studies on human addicts that assess the neurobiological changes that arise with abstinence and the neurobiological predictors of successfully avoiding relapse. The literature, while modest in size, suggests that abstinence is associated with improvement in prefrontal structure and function, which may underscore the importance of prefrontally mediated cognitive control processes in avoiding relapse. Given the implication that the prefrontal cortex may be an important target for therapeutic interventions, we also review evidence indicating the efficacy of cognitive control training for abstinence.
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Affiliation(s)
- H Garavan
- Department of Psychiatry, University of Vermont, USA.
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Kimmich O, Bradley D, Molloy A, Whelan R, O'Riordan S, Reilly R, Hutchinson S, Molloy F, Hutchinson M. Penetrance of Abnormal Temporal Discrimination Thresholds in Unaffected First-Degree Relatives of Adult Onset Primary Torsion Dystonia Patients (P01.218). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p01.218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Whelan R, Bradley D, Kimmich O, Balsters J, O'Riordan S, Reilly R, Hutchinson M. Functional Correlates of Temporal Discrimination in Adult Onset Primary Torsion Dystonia Patients and Unaffected First-Degree Relatives (P01.220). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p01.220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Nolan H, Butler JS, Whelan R, Foxe JJ, Bülthoff HH, Reilly RB. Neural correlates of oddball detection in self-motion heading: a high-density event-related potential study of vestibular integration. Exp Brain Res 2012; 219:1-11. [PMID: 22434342 DOI: 10.1007/s00221-012-3059-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [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: 09/09/2011] [Accepted: 03/02/2012] [Indexed: 11/25/2022]
Abstract
The perception of self-motion is a product of the integration of information from both visual and non-visual cues, to which the vestibular system is a central contributor. It is well documented that vestibular dysfunction leads to impaired movement and balance, dizziness and falls, and yet our knowledge of the neuronal processing of vestibular signals remains relatively sparse. In this study, high-density electroencephalographic recordings were deployed to investigate the neural processes associated with vestibular detection of changes in heading. To this end, a self-motion oddball paradigm was designed. Participants were translated linearly 7.8 cm on a motion platform using a one second motion profile, at a 45° angle leftward or rightward of straight ahead. These headings were presented with a stimulus probability of 80-20 %. Participants responded when they detected the infrequent direction change via button-press. Event-related potentials (ERPs) were calculated in response to the standard (80 %) and target (20 %) movement directions. Statistical parametric mapping showed that ERPs to standard and target movements differed significantly from 490 to 950 ms post-stimulus. Topographic analysis showed that this difference had a typical P3 topography. Individual participant bootstrap analysis revealed that 93.3 % of participants exhibited a clear P3 component. These results indicate that a perceived change in vestibular heading can readily elicit a P3 response, wholly similar to that evoked by oddball stimuli presented in other sensory modalities. This vestibular-evoked P3 response may provide a readily and robustly detectable objective measure for the evaluation of vestibular integrity in various disease models.
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Affiliation(s)
- H Nolan
- The Trinity Centre for Bioengineering, Trinity College Dublin, Dublin, Ireland
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Whelan R, Bradley D, Kimmich O, O'Riordan S, Reilly RB, Hutchinson M. 122 Functional correlates of abnormal temporal discrimination in adult onset primary torsion dystonia patients and first-degree relatives. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Kimmich O, Bradley D, Whelan R, Mulrooney N, Reilly RB, Hutchinson S, O'Riordan S, Hutchinson M. 1612 Sporadic AOPTD is a genetic disorder: evidence from the temporal discrimination threshold. J Neurol Neurosurg Psychiatry 2012. [DOI: 10.1136/jnnp-2011-301993.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Kiiski H, Reilly R, Lonergan R, Kelly S, O'Brien M, Kinsella K, Bramham J, Burke T, O'Donnchadha S, Nolan H, Hutchinson M, Tubridy N, Whelan R. Change in PASAT performance correlates with change in P3 ERP amplitude over a 12-month period in multiple sclerosis patients. J Neurol Sci 2011; 305:45-52. [DOI: 10.1016/j.jns.2011.03.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 02/28/2011] [Accepted: 03/04/2011] [Indexed: 11/24/2022]
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Kiiski H, Whelan R, Lonergan R, Nolan H, Kinsella K, Hutchinson M, Tubridy N, Reilly RB. Preliminary evidence for correlation between PASAT performance and P3a and P3b amplitudes in progressive multiple sclerosis. Eur J Neurol 2011; 18:792-5. [DOI: 10.1111/j.1468-1331.2010.03172.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Bradley D, Whelan R, Molloy F, Hutchinson S, Hutchinson M, Mulrooney N, Reilly R, Walsh R. POMD05 Temporal discrimination threshold in patients with sporadic adult-onset primary torsion dystonia and their first degree relatives. Journal of Neurology, Neurosurgery & Psychiatry 2010. [DOI: 10.1136/jnnp.2010.226340.165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Bradley D, Whelan R, Molloy F, Hutchinson S, Hutchinson M, Mulrooney N, Reilly R, Walsh R. POMD06 Utility of visual, tactile and mixed tasks in the determination of temporal discrimination thresholds in adult-onset primary torsion dystonia. Journal of Neurology, Neurosurgery & Psychiatry 2010. [DOI: 10.1136/jnnp.2010.226340.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Bradley D, Whelan R, Molloy F, Hutchinson S, Hutchinson M, Mulrooney N, Reilly R, Walsh R. POMD04 Utility of temporal discrimination threshold testing in different adult-onset primary torsion dystonia phenotypes. Journal of Neurology, Neurosurgery & Psychiatry 2010. [DOI: 10.1136/jnnp.2010.226340.164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Nolan H, Whelan R, Reilly RB. FASTER: Fully Automated Statistical Thresholding for EEG artifact Rejection. J Neurosci Methods 2010; 192:152-62. [PMID: 20654646 DOI: 10.1016/j.jneumeth.2010.07.015] [Citation(s) in RCA: 595] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2010] [Revised: 07/09/2010] [Accepted: 07/10/2010] [Indexed: 11/16/2022]
Affiliation(s)
- H Nolan
- Trinity Center for Bioengineering, Trinity College Dublin, Ireland
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Whelan R, Lonergan R, Kiiski H, Nolan H, Kinsella K, Hutchinson M, Tubridy N, Reilly RB. Impaired information processing speed and attention allocation in multiple sclerosis patients versus controls: a high-density EEG study. J Neurol Sci 2010; 293:45-50. [PMID: 20399448 DOI: 10.1016/j.jns.2010.03.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Revised: 03/10/2010] [Accepted: 03/11/2010] [Indexed: 11/20/2022]
Abstract
BACKGROUND The no-go P3a is a variant of the P300 event-related potential (ERP) that indexes speed of information processing and attention allocation. The aim of this study was to compare ERP findings with results from the paced auditory serial addition test (PASAT) and to quantify latency, amplitude and topographical differences in P3a ERP components between multiple sclerosis (MS) patients and controls. PATIENTS AND METHODS Seventy-four subjects (20 relapsing remitting (RRMS) patients, 20 secondary progressive (SPMS) patients and 34 controls) completed a three-stimulus oddball paradigm (target, standard, and non-target). Subjects participated in separate visual and auditory tasks while data were recorded from 134 EEG channels. Latency differences were tested using an ANCOVA. Topographical differences were tested using statistical parametric mapping. RESULTS Visual P3a amplitude correlated with PASAT score in all MS patients over frontal and parietal areas. There were significant differences in latency, amplitude, and topography between MS patients and controls in the visual condition. RRMS and SPMS patients differed in visual P3a latency and amplitude at frontal and parietal scalp regions. In the auditory condition, there were latency differences between MS patients and controls only over the parietal region. CONCLUSION The present results demonstrate that information processing speed and attention allocation are impaired in MS.
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Affiliation(s)
- R Whelan
- Department of Neurology, St. Vincent's University Hospital, University College Dublin, Dublin, Ireland.
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Bradley D, Whelan R, Walsh R, Reilly RB, Hutchinson S, Molloy F, Hutchinson M. Temporal Discrimination Threshold: VBM evidence for an endophenotype in adult onset primary torsion dystonia. Brain 2009; 132:2327-35. [DOI: 10.1093/brain/awp156] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [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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Tsikitis VL, Malireddy K, Green EA, Christensen B, Whelan R, Hyder J, Lauter D, Marcello P, Larach S, Sargent D, Nelson H. Postoperative surveillance recommendations for early-stage colon cancer based on results from the clinical outcomes of surgical therapy trial. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.4013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4013 Background: Intensive postoperative surveillance is associated with improved survival and recommended for patients with late stage (stage IIB & III) colon cancer. We hypothesized that stage I & IIA colon cancer patients would experience similar benefits. Methods: Secondary analysis of data from the Clinical Outcomes of Surgical Therapy trial was performed by analyzing results according to TNM stage; early (stage I & IIA; 537 patients) and late (stage IIB & III; 254 patients) stage disease. Five-year recurrence rates were higher in patients with late (35.7%) versus early stage disease (9.5%). Early and late stage salvage rates, recurrence patterns and methods of first detection were compared by χ2 test. Results: Salvage rates for early and late stage disease patients with recurrence were the same (35.9% versus 37%, p=0.9 respectively). Median survival following second surgery after recurrence was 35.8 months late stage and 51.2 months for early stage patients respectively. Sites of first recurrence did not significantly differ between late and early stage disease: liver (37.4% vs. 27.2%); lung (29.7% vs.23.6%); intraabdominal (24.2% vs.10.9%); and locoregional (12.1% vs.10.9%). Methods of first detection of recurrence were also not significantly different: CEA (37.4% vs. 29.1%); CT scan (26.4% vs. 23.6%); chest X-ray (12.1% vs. 7.3%); and colonoscopy (8.8% vs. 12.7%), for late versus early stage disease, respectively. Conclusions: Patients with early stage colon cancer have similar sites of recurrence, and receive similar benefit from post-recurrence therapy as later stage patients; implementation of existing surveillance guidelines for early stage patients is appropriate. No significant financial relationships to disclose.
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Affiliation(s)
- V. L. Tsikitis
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - K. Malireddy
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - E. A. Green
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - B. Christensen
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - R. Whelan
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - J. Hyder
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - D. Lauter
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - P. Marcello
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - S. Larach
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - D. Sargent
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
| | - H. Nelson
- Mayo Clinic, Rochester, MN; LDS Hospital, Salt Lake City, UT; Columbia Presbyterian Hospital, New York, NY; Midwest Surgical P.A., Wichita, KS; Group Health Cooperative, Seattle, WA; Lahey Clinic, Burlington, MA; M. D. Anderson Orlando Cancer Center, Orlando, FL
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Georges C, Lo T, Alkofer B, Whelan R, Allendorf J. The effects of surgical trauma on colorectal liver metastasis. Surg Endosc 2007; 21:1817-9. [PMID: 17522938 DOI: 10.1007/s00464-007-9290-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2007] [Revised: 01/09/2007] [Accepted: 02/06/2007] [Indexed: 10/23/2022]
Affiliation(s)
- C Georges
- Department of Surgey, Columbia University College of Physicians and Surgeons, 630 West 168th Street, New York, NY 10032, USA.
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Whelan R, Kim C, Chen M, Leiter J, Grunstein MM, Hakonarson H. Role and regulation of interleukin-1 molecules in pro-asthmatic sensitised airway smooth muscle. Eur Respir J 2005; 24:559-67. [PMID: 15459133 DOI: 10.1183/09031936.04.00133803] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Interleukin (IL)-1beta is a pleiotropic, pro-inflammatory cytokine that has been importantly implicated in driving the inflammatory response and resultant changes in airway smooth muscle (ASM) responsiveness in asthma. IL-1beta belongs to a family of molecules, known as the IL-1 axis, which exert both pro- and anti-inflammatory effects. Since dysregulation of IL-1 axis molecules may be critical in the pathobiology of asthma, the present study examined the expression and activation of both the inhibitory and stimulatory IL-1 axis molecules in human ASM cells and their roles in modulating cytokine and immunoglobulin (Ig)E immune complex (IgE cx)-mediated changes in rabbit ASM constrictor and relaxant responsiveness. The results demonstrate the following. 1) Pre-treatment of isolated rabbit tracheal rings with the inhibitory IL-1 axis members, IL-1 receptor antagonist and IL-1 type-II receptor abrogated both IL-5- and IgE cx-induced changes in ASM responsiveness. 2) Administration of IL-5, IL-1beta and IgE cxs to human ASM cells increased mRNA and protein expressions of both stimulatory and inhibitory IL-1 axis molecules. 3) The time course of IL-5-induced IL-1 axis molecule expression preceded that of both IL-1beta and IgE immune cxs. Collectively, these findings suggest that modulation at the level of the interleukin-1 axis of molecules may have significant therapeutic potential in the treatment of asthma.
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Affiliation(s)
- R Whelan
- Division of Pulmonary Medicine, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, 34th Street and Civic Center Boulevard, Philadelphia, PA 19104, USA
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Abstract
BACKGROUND There are few scientific reports documenting the effects of simulation training on learning. Issues of scientific validity challenge investigators who measure such outcomes. We perceived a failure of residents to change their technical management of oesophageal intubation after simulation training and sought clarification of this observation. METHODS Twenty-one residents were randomly exposed to two deliberate oesophageal intubation scenarios, first as a junior assistant (JS group) or as a senior managing resident (SS group), and secondly as a senior managing resident. After the first episode, residents were given an explanation and demonstration of the suggested technical management strategy, including: (i) confirmation of oesophageal intubation with a second direct laryngoscopy; and (ii) concurrent insertion of a second tube into the trachea. After the second episode, we retrospectively sought to confirm improvement in technical management within the SS group by measuring videotaped performances. Questionnaires were sent to the residents before and after reporting their performance results. RESULTS There were 14 SS and seven JS subjects. Within SS, there was no improvement in "confirmation of oesophageal intubation with direct laryngoscopy" (8/14 vs 9/14) or any improvement in "concurrent insertion of a second ETT (tracheal) tube" (1/14 vs 2/14). Questionnaire responses offered considerable insight into these negative results. CONCLUSIONS This failure to change may have been secondary to a lack of criterion validity, lack of repetition or a long duration between episodes. The expectations for management were not regarded as being advantageous in simulation, but they were successfully adopted in actual clinical emergencies.
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Affiliation(s)
- M A Olympio
- Department of Anesthesiology, Wake Forest University School of Medicine, Winston-Salem, NC 27157-1009, USA.
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Abstract
The integrins have an ability to interact with extracellular matrix proteins to confer adhesive and motile properties on cells. The means by which these activities operate and the manner in which they are integrated with cell functions is of particular relevance to many biological processes. In the present paper, the developing understanding of the bi-directional relationship between the protein kinase C family of signal transducers and integrins is discussed.
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Affiliation(s)
- J Ivaska
- Cancer Research UK, London Research Institute, 44 Lincoln's Inn Fields, London WC2A 3PX, UK
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Grunstein MM, Hakonarson H, Leiter J, Chen M, Whelan R, Grunstein JS, Chuang S. IL-13-dependent autocrine signaling mediates altered responsiveness of IgE-sensitized airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2002; 282:L520-8. [PMID: 11839548 DOI: 10.1152/ajplung.00343.2001] [Citation(s) in RCA: 110] [Impact Index Per Article: 5.0] [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] [Indexed: 11/22/2022] Open
Abstract
In testing the hypothesis that interleukin-4 receptor alpha-subunit (IL-4R alpha)-coupled signaling mediates altered airway smooth muscle (ASM) responsiveness in the atopic sensitized state, isolated rabbit tracheal ASM segments were passively sensitized with immunoglobulin E (IgE) immune complexes, both in the absence and presence of an IL-4R alpha blocking antibody (anti-IL-4R alpha Ab). Relative to control ASM, IgE-sensitized tissues exhibited enhanced isometric constrictor responses to administered ACh and attenuated relaxation responses to isoproterenol. These proasthmatic-like effects were prevented in IgE-sensitized ASM that were pretreated with anti-IL-4R alpha Ab. In complementary experiments, IgE-sensitized cultured human ASM cells exhibited upregulated expression of IL-13 mRNA and protein, whereas IL-4 expression was undetected. Moreover, extended studies demonstrated that 1) exogenous IL-13 administration to naïve ASM elicited augmented contractility to ACh and impaired relaxation to isoproterenol, 2) these effects of IL-13 were prevented by pretreating the tissues with an IL-5 receptor blocking antibody, and 3) IL-13 administration induced upregulated mRNA expression and release of IL-5 protein from cultured ASM cells. Collectively, these findings provide new evidence demonstrating that the altered responsiveness of IgE-sensitized ASM is largely attributed to activation of an intrinsic Th2-type autocrine mechanism involving IL-13/IL-4R alpha-coupled release and action of IL-5 in the sensitized ASM itself.
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Affiliation(s)
- M M Grunstein
- Division of Pulmonary Medicine, Joseph Stokes, Jr. Research Institute, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
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Grunstein MM, Hakonarson H, Whelan R, Yu Z, Grunstein JS, Chuang S. Rhinovirus elicits proasthmatic changes in airway responsiveness independently of viral infection. J Allergy Clin Immunol 2001; 108:997-1004. [PMID: 11742279 DOI: 10.1067/mai.2001.120276] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.5] [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: 11/22/2022]
Abstract
BACKGROUND Rhinovirus (RV), the principal pathogen responsible for the common cold, is importantly implicated in triggering attacks of asthma secondary to changes in airway responsiveness. OBJECTIVE Because the airway histopathologic features of RV infection are relatively modest, we tested the hypothesis that RV can directly elicit proasthmatic-like changes in airway smooth muscle (ASM) responsiveness independently of actual viral infection and its associated cytopathic effects. METHODS Isolated ASM tissues and cultured ASM cells were inoculated with either infectious or noninfectious (UV-irradiated) RV16 and RV2, the latter serotypes belonging to the "major" and "minor" groups of RV subtypes, respectively. ASM constrictor and relaxant responsiveness, G(i) protein expression, and proinflammatory cytokine release were subsequently compared under the different treatment conditions. RESULTS In contrast to RV2, which had no effect, RV16 inoculation elicited enhanced ASM contractility and impaired relaxation to cholinergic and beta-adrenergic agonists, respectively, in association with increased ASM membrane G(i) protein expression and induced release of the proinflammatory cytokines IL-5 and IL-1beta. These proasthmatic-like effects were also observed in ASM exposed to UV-irradiated RV16, wherein viral replication was completely inhibited. In contrast, pretreatment of ASM with a neutralizing antibody directed against ICAM-1, the host receptor for the "major" group of RVs, completely abrogated the proasthmatic effects of RV16. CONCLUSIONS The results demonstrate that (1) RV16 elicits proasthmatic changes in ASM responsiveness that can occur independently of actual viral infection of the ASM and (2) the effects of RV16 are attributed solely to binding of the virus to its host receptor (ICAM-1) on the ASM cell surface. Collectively, these findings support the notion that RV-induced exacerbation of wheezing in asthmatic individuals can occur even in the absence of any cytopathology associated with viral infection.
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Affiliation(s)
- M M Grunstein
- Division of Pulmonary Medicine, Joseph Stokes, Jr, Research Institute, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia 19104, USA
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Hakonarson H, Halapi E, Whelan R, Gulcher J, Stefansson K, Grunstein MM. Association between IL-1beta/TNF-alpha-induced glucocorticoid-sensitive changes in multiple gene expression and altered responsiveness in airway smooth muscle. Am J Respir Cell Mol Biol 2001; 25:761-71. [PMID: 11726403 DOI: 10.1165/ajrcmb.25.6.4628] [Citation(s) in RCA: 69] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
The pleiotropic cytokines interleukin (IL)-1beta and tumor necrosis factor (TNF)-alpha have been implicated in the pathophysiology of asthma. To elucidate the role of these cytokines in the pro-asthmatic state, the effects of IL-1beta and TNF-alpha on airway smooth muscle (ASM) responsiveness and ASM expression of multiple genes, assessed by high-density oligonucleotide array analysis, were examined in the absence and presence of the glucocorticoid dexamethasone (DEX). Administration of IL-1beta/TNF-alpha increased ASM contractility to acetylcholine and impaired ASM relaxation to isoproterenol. These pro-asthmatic- like changes in ASM responsiveness were associated with IL-1beta/ TNF-alpha-induced mRNA expression of a host of proinflammatory genes that regulate transcription, cytokines and chemokines, cellular adhesion molecules, and various signal transduction molecules that regulate ASM responsiveness. In the presence of DEX, the changes induced in ASM responsiveness were abrogated, and most of the IL-1beta/TNF-alpha-mediated changes in proinflammatory gene expression were repressed, although mRNA expression of a small number of genes was enhanced by DEX. Collectively, the observations support the concept that, together with its role as a regulator of airway tone, in response to IL-1beta/TNF-alpha, the ASM expresses a host of glucocorticoid-sensitive genes that contribute to the altered structure and function of the airways in the pro-asthmatic state. We speculate that glucocorticoid-sensitive, cytokine-induced pathways involved in ASM cell signaling represent important targets for new therapeutic interventions.
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Grunstein MM, Hakonarson H, Leiter J, Chen M, Whelan R, Grunstein JS, Chuang S. Autocrine signaling by IL-10 mediates altered responsiveness of atopic sensitized airway smooth muscle. Am J Physiol Lung Cell Mol Physiol 2001; 281:L1130-7. [PMID: 11597904 DOI: 10.1152/ajplung.2001.281.5.l1130] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [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: 11/22/2022] Open
Abstract
To elucidate the role and mechanism of action of interleukin (IL)-10 in regulating airway smooth muscle (ASM) responsiveness in the atopic asthmatic state, isolated rabbit tracheal ASM segments were passively sensitized with serum from atopic asthmatic patients or nonatopic nonasthmatic (control) subjects in both the absence and presence of an anti-IL-10 receptor blocking antibody (Ab). Relative to control ASM, atopic asthmatic serum-sensitized tissues exhibited enhanced isometric constrictor responses to administered acetylcholine and attenuated the relaxation responses to isoproterenol. These proasthmatic effects were prevented in atopic asthmatic serum-sensitized ASM that was pretreated with anti-IL-10 receptor Ab. In complementary experiments, exposure of cultured human ASM cells to atopic asthmatic serum induced upregulated expression of IL-10 mRNA. Moreover, extended studies demonstrated that 1) exogenous IL-10 administration to naive ASM elicited augmented contractility to acetylcholine and impaired relaxation to isoproterenol, 2) these effects of IL-10 were prevented by pretreating the tissues with an IL-5 receptor Ab, and 3) IL-10 administration induced upregulated mRNA expression and release of IL-5 protein from cultured ASM cells. Collectively, these findings provide new evidence demonstrating that the altered responsiveness of atopic asthmatic serum-sensitized ASM is largely attributed to activation of an intrinsic T helper type 2-type autocrine mechanism involving IL-10-mediated release and the action of IL-5 in the sensitized ASM itself.
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Affiliation(s)
- M M Grunstein
- Division of Pulmonary Medicine, Joseph Stokes, Jr. Research Institute, Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania 19104, USA.
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Whelan R. Are peritoneal seeding and port site tumor recurrences a problem with laparoscopic cancer treatment? Int J Surg Investig 2001; 1:247-8. [PMID: 11341614] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- R Whelan
- Columbia Presbyterian Medical Center, New York, NY, USA
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Hakonarson H, Kim C, Whelan R, Campbell D, Grunstein MM. Bi-directional activation between human airway smooth muscle cells and T lymphocytes: role in induction of altered airway responsiveness. J Immunol 2001; 166:293-303. [PMID: 11123305 DOI: 10.4049/jimmunol.166.1.293] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Because both T lymphocyte and airway smooth muscle (ASM) cell activation are events fundamentally implicated in the pathobiology of asthma, this study tested the hypothesis that cooperative intercellular signaling between activated T cells and ASM cells mediates proasthmatic changes in ASM responsiveness. Contrasting the lack of effect of resting human T cells, anti-CD3-activated T cells were found to adhere to the surface of naive human ASM cells, increase ASM CD25 cell surface expression, and induce increased constrictor responsiveness to acetylcholine and impaired relaxation responsiveness to isoproterenol in isolated rabbit ASM tissues. Comparably, exposure of resting T cells to ASM cells prestimulated with IgE immune complexes reciprocally elicited T cell adhesion to ASM cells and up-regulated T cell expression of CD25. Extended studies demonstrated that: 1) ASM cells express mRNAs and proteins for the cell adhesion molecules (CAMs)/costimulatory molecules, CD40, CD40L, CD80, CD86, ICAM-1 (CD54), and LFA-1 (CD11a/CD18); 2) apart from LFA-1, ASM cell surface expression of the latter molecules is up-regulated in the presence of activated T cells; and 3) pretreatment of ASM cells and tissues with mAbs directed either against CD11a or the combination of CD40 and CD86 completely abrogated both the activated T cell-induced changes in expression of the above CAMs/costimulatory molecules in ASM cells and altered ASM tissue responsiveness. Collectively, these observations identify the presence of bi-directional cross-talk between activated T cells and ASM cells that involves coligation of specific CAMs/costimulatory molecules, and this cooperative intercellular signaling mediates the induction of proasthmatic-like changes in ASM responsiveness.
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Affiliation(s)
- H Hakonarson
- Division of Pulmonary Medicine, The Joseph Stokes Jr. Research Institute, The Children's Hospital of Philadelphia, University of Pennsylvania School of Medicine, Philadelphia, PA 19104, USA.
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Bonjer HJ, Gutt CN, Hubens G, Krähenbühl L, Kim SH, Bouvy ND, Tseng LN, Paolucci V, Whelan R, Jacobi CA. Port site metastases in laparoscopic surgery. First workshop on experimental laparoscopic surgery, Frankfurt 1997. Surg Endosc 1998; 12:1102-3. [PMID: 9685554 DOI: 10.1007/s004649900792] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- H J Bonjer
- Department of Surgery, University Hospital Dijkzigt, Rotterdam, The Netherlands
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45
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Gutt CN, Kuntz C, Schmandra T, Wunsch A, Heinz P, Bouvy N, Bessler M, Sänger P, Bonjer J, Allendorf J, Jacobi CA, Whelan R. Metabolism and immunology in laparoscopy. First workshop on experimental laparoscopic surgery, Frankfurt, 1997. Surg Endosc 1998; 12:1096-8. [PMID: 9685552 DOI: 10.1007/s004649900790] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- C N Gutt
- Department of Surgery, Johann-Wolfgang-Goethe University, Frankfurt, Germany
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Hansra G, Bornancin F, Whelan R, Hemmings BA, Parker PJ. 12-O-Tetradecanoylphorbol-13-acetate-induced dephosphorylation of protein kinase Calpha correlates with the presence of a membrane-associated protein phosphatase 2A heterotrimer. J Biol Chem 1996; 271:32785-8. [PMID: 8955114 DOI: 10.1074/jbc.271.51.32785] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.1] [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: 02/03/2023] Open
Abstract
Protein kinase C signaling is desensitized through a combination of dephosphorylation and proteolysis in intact cells. The process of dephosphorylation is analyzed here, as well as its relationship to degradation. It is established for protein kinase Calpha that dephosphorylation occurs in a membrane compartment following activation and temporally preceding significant degradation. The phosphatase responsible for the dephosphorylation appears to be a heterotrimeric type 2A phosphatase, which is shown to be in part constitutively membrane associated. Consistent with a role for this activity, okadaic acid is shown to inhibit the phorbol ester-induced dephosphorylation of protein kinase C that occurs in intact cells. Furthermore, phorbol ester-induced down-regulation of protein kinase Calpha is shown not to be dependent on the rate of dephosphorylation, indicating that these desensitizing pathways may operate in parallel.
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Affiliation(s)
- G Hansra
- Imperial Cancer Research Fund, 44 Lincoln's Inn Fields, London WC2A 3PX, United Kingdom
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48
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Díaz-Guerra MJ, Bodelón OG, Velasco M, Whelan R, Parker PJ, Boscá L. Up-regulation of protein kinase C-epsilon promotes the expression of cytokine-inducible nitric oxide synthase in RAW 264.7 cells. J Biol Chem 1996; 271:32028-33. [PMID: 8943252 DOI: 10.1074/jbc.271.50.32028] [Citation(s) in RCA: 53] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Stimulation of the murine macrophage RAW 264.7 cell line with phorbol esters fails to promote nitric oxide synthesis as occurs in rat hepatocytes or peritoneal macrophages. Transfection of RAW 264.7 cells with plasmids harboring protein kinase C (PKC) -epsilon isotype but not with PKC-alpha, -beta1, -delta, or constitutively active -alpha and -beta1 isotypes resulted in the expression of nitric oxide synthase type II (iNOS), as reflected by the synthesis of nitric oxide measured in the culture medium of transfected cells. cotransfection of RAW 264.7 cells with the -1592 to +121-base pair promoter region of the murine iNOS gene and PKC isotypes specifically induced the transactivation of this promoter in the case of the plasmids containing the PKC-epsilon isotype. The mechanism by which PKC-epsilon induced iNOS expression involved the activation of nuclear factor binding to kappaB sites (NF-kappaB) as deduced by the suppressive effect of pyrrolidine dithiocarbamate on nitric oxide synthesis, an inhibitor of NF-kappaB activation, and by the activation of kappaB sites in cells transfected with a vector containing a kappaB motif linked to a chloramphenicol acetyltransferase reporter gene. These results suggest that PKC-epsilon can regulate a pathway that promotes iNOS expression in macrophages in response to phorbol ester activation.
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Affiliation(s)
- M J Díaz-Guerra
- Instituto de Bioquímica (Consejo Superior de Investigaciones Cientifícas), Facultad de Farmacia, Universidad Complutense, 28040 Madrid, Spain
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49
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Holt PR, Moss SF, Whelan R, Guss J, Gilman J, Lipkin M. Fecal and rectal mucosal diacylglycerol concentrations and epithelial proliferative kinetics. Cancer Epidemiol Biomarkers Prev 1996; 5:937-40. [PMID: 8922305] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Fecal diacylglycerol (DAG) concentrations have been suggested as biomarkers for colonic neoplasia because of their potential to be absorbed in the colon and to stimulate epithelial cell proliferation. The interrelationships among nutrient intake, fecal and mucosal DAG, and colonic proliferative markers have not previously been studied. We designed a pilot study to evaluate the feasibility of evaluating these interrelationships in 12 volunteers who had a history of colonic adenomatous polyposis. Total mucosal DAG concentrations were not related to fecal DAG concentrations, but mucosal DAG correlated inversely with the whole crypt labeling index. Dietary intake did not alter fecal DAG concentrations. However, the percentage of calories from dietary fat correlated positively with the whole crypt labeling index. Fiber and calcium intake showed a positive correlation with the labeling index in the upper 40% of the crypt. The present pilot study failed to demonstrate a correlation between dietary components and fecal and total mucosal DAG. Additional studies relating fecal DAG with mucosal proliferation will require the evaluation of DAG concentrations in subcellular compartments of mucosal cells and/or measurement of fecal DAG fatty acid composition.
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Affiliation(s)
- P R Holt
- Gastrointestinal Division, St. Luke's-Roosevelt Hospital Center, New York, New York 10025, USA
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Affiliation(s)
- S C Kiley
- W. Alton Jones Cell Science Center, Inc., Lake Placid, NY 12946, USA
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