1
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Hamilton R, Jacobs JL, McCoy AG, Kelly HM, Bradley CA, Malvick DK, Rojas JA, Chilvers MI. Multistate Sensitivity Monitoring of Fusarium virguliforme to the SDHI Fungicides Fluopyram and Pydiflumetofen in the United States. Plant Dis 2024:PDIS11232465RE. [PMID: 38127633 DOI: 10.1094/pdis-11-23-2465-re] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Sudden death syndrome (SDS), caused by Fusarium virguliforme, is an important yield-limiting disease of soybean (Glycine max). From 1996 to 2022, cumulative yield losses attributed to SDS in North America totaled over 25 million metric tons, which was valued at over US $7.8 billion. Seed treatments are widely used to manage SDS by reducing early season soybean root infection by F. virguliforme. Fluopyram (succinate dehydrogenase inhibitor [SDHI] - FRAC 7), a fungicide seed treatment for SDS management, has been registered for use on soybean in the United States since 2014. A baseline sensitivity study conducted in 2014 evaluated 130 F. virguliforme isolates collected from five states to fluopyram in a mycelial growth inhibition assay and reported a mean EC50 of 3.35 mg/liter. This baseline study provided the foundation for the objectives of this research: to detect any statistically significant change in fluopyram sensitivity over time and geographical regions within the United States and to investigate sensitivity to the fungicide pydiflumetofen. We repeated fluopyram sensitivity testing on a panel of 80 historical F. virguliforme isolates collected from 2006 to 2013 (76 of which were used in the baseline study) and conducted testing on 123 contemporary isolates collected from 2016 to 2022 from 11 states. This study estimated a mean absolute EC50 of 3.95 mg/liter in isolates collected from 2006 to 2013 and a mean absolute EC50 of 4.19 mg/liter in those collected in 2016 to 2022. There was no significant change in fluopyram sensitivity (P = 0.1) identified between the historical and contemporary isolates. A subset of 23 isolates, tested against pydiflumetofen under the same conditions, estimated an absolute mean EC50 of 0.11 mg/liter. Moderate correlation was detected between fluopyram and pydiflumetofen sensitivity estimates (R = 0.53; P < 0.001). These findings enable future fluopyram and pydiflumetofen resistance monitoring and inform current soybean SDS management strategies in a regional and national context.
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Affiliation(s)
- Ryan Hamilton
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI 48824
| | - Janette L Jacobs
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI 48824
| | - Austin G McCoy
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI 48824
| | - Heather M Kelly
- Department of Entomology and Plant Pathology, The University of Tennessee Institute of Agriculture, Jackson, TN 38301
| | - Carl A Bradley
- Department of Plant Pathology, University of Kentucky, Princeton, KY 42445
| | - Dean K Malvick
- Department of Plant Pathology, University of Minnesota, St. Paul, MN 55108
| | - J Alejandro Rojas
- Department of Entomology and Plant Pathology, University of Arkansas, Fayetteville, AR 72701
| | - Martin I Chilvers
- Department of Plant, Soil, and Microbial Sciences, Michigan State University, East Lansing, MI 48824
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Jolly JK, Matsumoto C, Hamilton R. The IPS and ISCEV joint guidelines for full-field stimulus testing. Doc Ophthalmol 2024; 148:1-2. [PMID: 38353842 DOI: 10.1007/s10633-024-09966-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Affiliation(s)
- J K Jolly
- Vision and Eye Research Institute, Anglia Ruskin University, Cambridge, UK.
| | - C Matsumoto
- Department of Ophthalmology, Kindai University, Osakasayama, Japan
| | - R Hamilton
- Department of Clinical Physics and Bioengineering, Royal Hospital for Children, NHS Greater Glasgow and Clyde, Glasgow, UK
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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3
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Veeramani P, Pilar Martin-Gutierrez M, Agorogiannis E, Hamilton R, Griggs T, Nicholson L, Heng LZ. Efficacy and Safety outcomes of a novel model to assess new medical retina referrals in a high-volume medical retina virtual clinic. Eye (Lond) 2024; 38:168-172. [PMID: 37491441 PMCID: PMC10764806 DOI: 10.1038/s41433-023-02653-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 11/03/2022] [Revised: 05/12/2023] [Accepted: 06/21/2023] [Indexed: 07/27/2023] Open
Abstract
BACKGROUND Ophthalmology outpatient attendances have significantly increased recently with rising pressure from backlogs arising from the pandemic. Medical retina digital surveillance clinics for stable follow-up appointments are well established. We present a model for assessing new referrals and evaluating clinical outcomes and long-term sustainability in a complex high-volume medical retina service. METHODS Suitable routine new patient referrals were identified from electronic referrals and referred to this new pathway. Structured history, visual acuities, and intraocular pressures were recorded, and widefield colour fundus and optical coherence tomography imaging were performed at a imaging hub for asynchronous consultant-led review. RESULTS 1458 patients were invited to attend over four months, with a 13.2% did-not-attend (DNA) rate. Common diagnoses included stable diabetic retinopathy (19.9%), early age-related macular degeneration (6.7%), central serous retinopathy (8.8%), and retinal vein occlusion (6.3%). 7 patients (0.05%) required urgent same-day review. 61 (5.0%) required urgent face-to-face (F2F) assessment within two weeks. A total of 727 (59.0%) were either discharged or remained in the virtual pathway following their first visit. CONCLUSION This study encourages the use of a digital model that efficiently assesses suitable newly referred medical retina patients in both complex and local eye unit settings. This decreased the need for F2F clinics and resources. Further patient satisfaction surveys for digital services are currently being evaluated to guide long-term sustainability of this model.
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Affiliation(s)
- P Veeramani
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | | | - E Agorogiannis
- Manchester Royal Eye Hospital Manchester, Manchester, UK
| | - R Hamilton
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - T Griggs
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - L Nicholson
- Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - L Z Heng
- Moorfields Eye Hospital NHS Foundation Trust, London, UK.
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4
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Hamilton R, Mulvihill A, Butler L, Chow A, Irving E, McCulloch DL, McNeil A, Michael K, Spowart KM, Waterson-Wilson J, Mactier H. Impaired vision in children prenatally exposed to methadone: an observational cohort study. Eye (Lond) 2024; 38:118-126. [PMID: 37402864 PMCID: PMC10764882 DOI: 10.1038/s41433-023-02644-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/05/2023] [Accepted: 06/15/2023] [Indexed: 07/06/2023] Open
Abstract
BACKGROUND/OBJECTIVES To examine prevalence of failed visual assessment at 8-10 years in children born to methadone-maintained opioid dependent (MMOD) mothers and relate this to known in utero substance exposure. SUBJECTS/METHODS Follow up of observational cohort study of methadone-exposed and comparison children matched for birthweight, gestation and postcode of residence at birth. Participants were 144 children (98 exposed, 46 comparison). Prenatal drug exposure was previously established via comprehensive maternal and neonatal toxicology. Children were invited to attend for visual assessment and casenotes were reviewed. Presence of acuity poorer than 0.2 logMAR, strabismus, nystagmus and/or impaired stereovision constituted a 'fail'. Fail rates were compared between methadone-exposed and comparison children after adjusting for known confounding variables. RESULTS 33 children attended in person: data were also derived from casenote review for all children. After controlling for maternal reported tobacco use, methadone-exposed children were more likely to have a visual 'fail' outcome, adjusted odds ratio 2.6, 95% CI 1.1-6.2; adjusted relative risk 1.8 (95% CI 1.1-3.4). Visual 'fail' outcome rates did not differ between methadone-exposed children who had (n = 47) or had not (n = 51) received pharmacological treatment for neonatal abstinence/opioid withdrawal syndrome (NAS/NOWS); fail rate 62% vs 53% (95% CI of difference-11-27%). CONCLUSIONS Children born to MMOD mothers are almost twice as likely as unexposed peers to have significant visual abnormalities at primary school age. Prenatal methadone exposure should be considered in the differential diagnosis of nystagmus. Findings support visual assessment prior to school entry for children with any history of prenatal opioid exposure. TRIAL REGISTRATION The study was prospectively registered on ClinicalTrials.gov (NCT03603301), https://clinicaltrials.gov/ct2/show/NCT03603301 .
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Affiliation(s)
- R Hamilton
- Royal Hospital for Children, NHS Greater Glasgow & Clyde and the University of Glasgow, Glasgow, G51 4TF, UK.
| | - A Mulvihill
- Princess Alexandra Eye Pavilion, NHS Lothian, Edinburgh, EH3 9HA, UK
| | - L Butler
- Tennant Institute of Ophthalmology, NHS Greater Glasgow & Clyde, Glasgow, G12 0YN, UK
| | - A Chow
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - E Irving
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - D L McCulloch
- School of Optometry and Vision Science, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - A McNeil
- Royal Hospital for Children, NHS Greater Glasgow & Clyde, Glasgow, G51 4TF, UK
| | - K Michael
- Crosshouse Hospital, NHS Ayrshire & Arran, Kilmarnock, KA2 0BE, UK
| | - K M Spowart
- Specialist Children's Services, NHS Greater Glasgow & Clyde, Glasgow, G40 1DA, UK
| | - J Waterson-Wilson
- Royal Hospital for Children, NHS Greater Glasgow & Clyde, Glasgow, G51 4TF, UK
| | - H Mactier
- NHS Greater Glasgow & Clyde and the University of Glasgow, Glasgow, UK
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5
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Henley J, Brookes-Howell L, Euden J, Pallmann P, Llewelyn M, Howard P, Powell N, Dark P, Szakmany T, Hellyer TP, Albur M, Hamilton R, Prestwich G, Ogden M, Maboshe W, Sandoe J, Thomas-Jones E, Carrol E. Developing a model for decision-making around antibiotic prescribing for patients with COVID-19 pneumonia in acute NHS hospitals during the first wave of the COVID-19 pandemic: qualitative results from the Procalcitonin Evaluation of Antibiotic use in COVID-19 Hospitalised patients (PEACH Study). BMJ Open 2023; 13:e077117. [PMID: 38114276 DOI: 10.1136/bmjopen-2023-077117] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2023] Open
Abstract
OBJECTIVE To explore and model factors affecting antibiotic prescribing decision-making early in the pandemic. DESIGN Semistructured qualitative interview study. SETTING National Health Service (NHS) trusts/health boards in England and Wales. PARTICIPANTS Clinicians from NHS trusts/health boards in England and Wales. METHOD Individual semistructured interviews were conducted with clinicians in six NHS trusts/health boards in England and Wales as part of the Procalcitonin Evaluation of Antibiotic use in COVID-19 Hospitalised patients study, a wider study that included statistical analysis of procalcitonin (PCT) use in hospitals during the first wave of the pandemic. Thematic analysis was used to identify key factors influencing antibiotic prescribing decisions for patients with COVID-19 pneumonia during the first wave of the pandemic (March to May 2020), including how much influence PCT test results had on these decisions. RESULTS During the first wave of the pandemic, recommendations to prescribe antibiotics for patients with COVID-19 pneumonia were based on concerns about secondary bacterial infections. However, as clinicians gained more experience with COVID-19, they reported increasing confidence in their ability to distinguish between symptoms and signs caused by SARS-CoV-2 viral infection alone, and secondary bacterial infections. Antibiotic prescribing decisions were influenced by factors such as clinician experience, confidence, senior support, situational factors and organisational influences. A decision-making model was developed. CONCLUSION This study provides insight into the decision-making process around antibiotic prescribing for patients with COVID-19 pneumonia during the first wave of the pandemic. The importance of clinician experience and of senior review of decisions as factors in optimising antibiotic stewardship is highlighted. In addition, situational and organisational factors were identified that could be optimised. The model presented in the study can be used as a tool to aid understanding of the complexity of the decision-making process around antibiotic prescribing and planning antimicrobial stewardship support in the context of a pandemic. TRIAL REGISTRATION NUMBER ISRCTN66682918.
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Affiliation(s)
- Josie Henley
- School of Social Sciences, Cardiff University, Cardiff, UK
| | | | - Joanne Euden
- College of Biomedical and Life Sciences, Cardiff University Centre for Trials Research, Cardiff, UK
| | - Philip Pallmann
- College of Biomedical and Life Sciences, Cardiff University Centre for Trials Research, Cardiff, UK
| | - Martin Llewelyn
- Brighton and Sussex Medical School, University of Sussex and University Hospitals Sussex NHS Foundation Trust, Brighton, UK
| | - Philip Howard
- School of Healthcare, University of Leeds, Leeds, UK
- Pharmacy, Leeds Teaching Hospitals, Leeds, UK
| | - Neil Powell
- Royal Cornwall Hospitals NHS Trust, Truro, UK
| | - Paul Dark
- Intensive Care Unit, University of Manchester, Salford, UK
| | - Tamas Szakmany
- Critical Care Directorate, Aneurin Bevan University Health Board, Newport, UK
- Department of Anaesthesia, Intensive Care and Pain Medicine, Division of Population Medicine, Cardiff Univeristy, Cardiff, UK
| | - Thomas P Hellyer
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | - Ryan Hamilton
- School of Pharmacy, De Montfort University, Leicester, UK
| | | | - Margaret Ogden
- Faculty of Social Sciences, University of Stirling, Stirling, UK
| | | | - Jonathan Sandoe
- Department of Microbiology, The General Infirmary at Leeds, Leeds, UK
- Healthcare Associated Infection Group, Leeds Institute of Medical Research, University of Leeds, Leeds, UK
| | | | - Enitan Carrol
- Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
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6
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Kim ST, Shao K, Oleschkewitz C, Hamilton R. Margin of exposure to free formaldehyde in personal care products containing formaldehyde-donor preservatives: Evidence for consumer safety. Regul Toxicol Pharmacol 2023; 145:105519. [PMID: 37866701 DOI: 10.1016/j.yrtph.2023.105519] [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: 07/20/2023] [Revised: 09/29/2023] [Accepted: 10/18/2023] [Indexed: 10/24/2023]
Abstract
Formaldehyde has been classified as carcinogenic to humans by International Agency for Research on Cancer and found in personal care (PC) products containing formaldehyde-donor (FD) preservatives. However, the cancer risk associated with the use of FD-containing PC products has not been well established. Our study provides the quantitative cancer risk assessment of formaldehyde in FD-containing PC products. The carbon-13 nuclear magnetic resonance (13C-NMR) spectroscopy was used in this risk assessment to provide reliable exposure information to formaldehyde in PC products and aqueous solutions containing sodium hydroxymethylglycinate. The risk assessment was conducted using the margin of exposure (MOE) approach with benchmark doses (BMDs) for 10% effect. For hemolymphoreticular neoplasias in male rats, a BMD of 28.03 mg/kg/day and a BMD lower confidence limit (BMDL) of 2.52 mg/kg/day were calculated from available long-term animal experiments. The worst-case consumer exposure to formaldehyde from FD-containing PC products was 0.007 μg/kg/day. Comparing the consumer exposure with BMDL, the resulting MOE was 360,000 for the worst-case scenario. The consumer exposure to formaldehyde (0.007 μg/kg/day) from using FD-containing PC products represents less than 1.0 × 10-6 % of background level endogenous formaldehyde (878-1310 mg/kg/day). The cancer risk from formaldehyde to consumers using FD-containing PC products is negligible.
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Affiliation(s)
- Sang-Tae Kim
- Product Safety & Toxicology, Ashland LLC, Wilmington, DE, USA.
| | - Kan Shao
- Department of Environmental and Occupational Health Indiana University School of Public Health, 1025 E. Seventh Street, Bloomington, IN, USA
| | | | - Ryan Hamilton
- Product Safety & Toxicology, Ashland LLC, Wilmington, DE, USA
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7
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Shipton C, Aitken J, Atkinson S, Burchmore R, Hamilton R, MacTier H, McGill S, Millar E, Houtman AC. 5 Tear proteins in premature babies at risk of retinopathy of prematurity. BMJ Open Ophthalmol 2023; 8:A2. [PMID: 37797984 DOI: 10.1136/bmjophth-2023-biposa.5] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
This feasibility study aimed to investigate the feasibility of collecting and analysing tear proteins from preterm infants at risk of retinopathy of prematurity (ROP). Additionally, we sought to identify any tear proteins which might be implicated in the pathophysiology of ROP.Eligible infants were those undergoing ROP screening without other ocular pathology. Tear samples were obtained by Schirmer's test strips coincident with routine ROP screening. Mass spectrometry was used for proteomic analysis. All participants' parents gave written, informed consent.Samples were collected from 12 infants, including two sets of twins. Gestation ranged from 25+6 to 31+1 weeks. Median postnatal age at sampling was 30.5 days (range 19 to 66). One infant developed self-limiting ROP. An adequate sample for protein analysis was obtained from each infant. 701 proteins were identified; 261 proteins identified in the majority of tear samples, including several common tear proteins, were used for analyses.Increased risk of ROP as determined by G-ROP prediction criteria was associated with an increase in lactate dehydrogenase B (LDH-B) chain protein in tears. Older, more mature infants demonstrated increased concentration of immunoglobulin complexes within their tear samples and two sets of twins in the cohort showed exceptionally similar proteomes, supporting validity of the analysis.Tear sampling by Schirmer test strips and subsequent proteomic analysis in preterm infants is feasible. A larger study is required to investigate the potential use of tear proteomics in early identification of ROP.
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Affiliation(s)
- C Shipton
- Greater Glasgow and Clyde, Glasgow, UK
| | - J Aitken
- Greater Glasgow and Clyde, Glasgow, UK
| | | | | | | | - H MacTier
- Greater Glasgow and Clyde, Glasgow, UK
| | - S McGill
- Greater Glasgow and Clyde, Glasgow, UK
| | - E Millar
- Greater Glasgow and Clyde, Glasgow, UK
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8
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Ghazala F, Hamilton R, Mansfield D, Millar E. 6 Restricted diet causing irreversible visual impairment in children with autistic spectrum disorder: case series and review. BMJ Open Ophthalmol 2023; 8:A2. [PMID: 37797988 DOI: 10.1136/bmjophth-2023-biposa.6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/07/2023] Open
Abstract
Though micronutrient deficiency is recognized to cause visual system dysfunction, avoidant/restrictive food intake disorder (ARFID) has been poorly described in relation to this.Review of 18 previously published similar cases highlights the importance of identifying other micronutrient deficiencies, even when vitamin A deficiency accounts for the presenting features. We present four patients with permanent visual loss as a result of highly restricted diets due to avoidant/restrictive food intake disorder (ARFID), and with autistic spectrum disorder (ASD).The four cases reported here make a total of 22 reported cases of visual impairment due to ARFID-like restricted diets in boys with ASD. The severity of ASD varied widely across the 22 cases, but all had extremely restricted diets, in some cases tolerating only one or two food items. The most avoided food groups in children with ASD and food selectivity have been reported from the USA as vegetables, fruit, dairy and protein, with the most preferred food items being bread, chicken, cereal and yoghurt. In the 22 cases reviewed or reported here, tolerated foods tended to be predominately carbohydrate based, with dry or crunchy textures and beige or pale colouring, i.e. French fries, potato waffles, potato chips (crisps), rice, white bread, bagels, biscuits or cookies.This case series and review highlights the need for heightened vigilance for visual problems in individuals with ASD-related ARFID and early and complete assessment of micronutrient deficiency.
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Affiliation(s)
- F Ghazala
- Royal Hospital for Children, Glasgow, UK
| | - R Hamilton
- Royal Hospital for Children, Glasgow, UK
| | | | - E Millar
- Royal Hospital for Children, Glasgow, UK
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9
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Bulen BJ, Khazanov NA, Hovelson DH, Lamb LE, Matrana M, Burkard ME, Yang ESH, Edenfield WJ, Claire Dees E, Onitilo AA, Buchschacher GL, Miller AM, Parsons BM, Wassenaar TR, Suga JM, Siegel RD, Irvin W, Nair S, Slim JN, Misleh J, Khatri J, Masters GA, Thomas S, Safa MM, Anderson DM, Mowers J, Dusenbery AC, Drewery S, Plouffe K, Reeder T, Vakil H, Patrias L, Falzetta A, Hamilton R, Kwiatkowski K, Johnson DB, Rhodes DR, Tomlins SA. Validation of Immunotherapy Response Score as Predictive of Pan-solid Tumor Anti-PD-1/PD-L1 Benefit. Cancer Res Commun 2023; 3:1335-1349. [PMID: 37497337 PMCID: PMC10367935 DOI: 10.1158/2767-9764.crc-23-0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Revised: 05/16/2023] [Accepted: 06/29/2023] [Indexed: 07/28/2023]
Abstract
Immunotherapy response score (IRS) integrates tumor mutation burden (TMB) and quantitative expression biomarkers to predict anti-PD-1/PD-L1 [PD-(L)1] monotherapy benefit. Here, we evaluated IRS in additional cohorts. Patients from an observational trial (NCT03061305) treated with anti-PD-(L)1 monotherapy were included and assigned to IRS-High (-H) versus -Low (-L) groups. Associations with real-world progression-free survival (rwPFS) and overall survival (OS) were determined by Cox proportional hazards (CPH) modeling. Those with available PD-L1 IHC treated with anti-PD-(L)1 with or without chemotherapy were separately assessed. Patients treated with PD-(L)1 and/or chemotherapy (five relevant tumor types) were assigned to three IRS groups [IRS-L divided into IRS-Ultra-Low (-UL) and Intermediate-Low (-IL), and similarly assessed]. In the 352 patient anti-PD-(L)1 monotherapy validation cohort (31 tumor types), IRS-H versus IRS-L patients had significantly longer rwPFS and OS. IRS significantly improved CPH associations with rwPFS and OS beyond microsatellite instability (MSI)/TMB alone. In a 189 patient (10 tumor types) PD-L1 IHC comparison cohort, IRS, but not PD-L1 IHC nor TMB, was significantly associated with anti-PD-L1 rwPFS. In a 1,103-patient cohort (from five relevant tumor types), rwPFS did not significantly differ in IRS-UL patients treated with chemotherapy versus chemotherapy plus anti-PD-(L)1, nor in IRS-H patients treated with anti-PD-(L)1 versus anti-PD-(L)1 + chemotherapy. IRS associations were consistent across subgroups, including both Europeans and non-Europeans. These results confirm the utility of IRS utility for predicting pan-solid tumor PD-(L)1 monotherapy benefit beyond available biomarkers and demonstrate utility for informing on anti-PD-(L)1 and/or chemotherapy treatment. Significance This study confirms the utility of the integrative IRS biomarker for predicting anti-PD-L1/PD-1 benefit. IRS significantly improved upon currently available biomarkers, including PD-L1 IHC, TMB, and MSI status. Additional utility for informing on chemotherapy, anti-PD-L1/PD-1, and anti-PD-L1/PD-1 plus chemotherapy treatments decisions is shown.
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Affiliation(s)
| | | | | | | | - Marc Matrana
- Ochsner Cancer Institute, New Orleans, Louisiana
| | - Mark E. Burkard
- University of Wisconsin Carbone Cancer Center, Madison, Wisconsin
| | - Eddy Shih-Hsin Yang
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | | | | | - Adedayo A. Onitilo
- Cancer Care and Research Center, Marshfield Clinic Research Institute, Marshfield, Wisconsin
| | | | | | | | | | | | | | | | - Suresh Nair
- Lehigh Valley Topper Cancer Institute, Allentown, Pennsylvania
| | | | | | - Jamil Khatri
- ChristianaCare Oncology Hematology, Newark, Delaware
| | - Gregory A. Masters
- Medical Oncology Hematology Consultants, Helen F Graham Cancer Center and Research Institute, Newark, Delaware
| | - Sachdev Thomas
- Kaiser Permanente Northern California, Oakland, California
| | | | - Daniel M. Anderson
- Metro-Minnesota Community Oncology Research Consortium, St. Louis Park, Minnesota
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10
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Kim ST, Pressman P, Clemens R, Moore A, Hamilton R, Hayes AW. The absence of genotoxicity of Aloe vera beverages: A review of the literature. Food Chem Toxicol 2023; 174:113628. [PMID: 36702364 DOI: 10.1016/j.fct.2023.113628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 01/16/2023] [Accepted: 01/17/2023] [Indexed: 01/25/2023]
Abstract
Aloe has a long history of topical and systemic use with testimonials of countless health benefits and is one of the most popular botanical medicines in the world for the management of a wide variety both of benign and serious ailments including irritable bowel syndromes, osteoarthritis, Type II diabetes mellitus, and viral respiratory illness. The human consumption of Aloe vera extract in beverage form has substantially grown over the last several decades, in no small part, due to the increased consumer interest in alternative approaches to health benefits. The principal aim of the present paper is to characterize the research to date that has explored the genotoxic potential of Aloe vera inner leaf gel extract and decolorized whole leaf extract used in commercially available food-grade drinkable products which contain no more than 10 ppm aloin. Despite prevailing public health opinion, especially in Europe, the consensus of the reviewed studies retrieved from the peer-reviewed literature together with a mutagenic evaluation of an Aloe vera whole leaf decolorized spray-dried powder is that these products are not genotoxic.
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11
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Onkanga IO, Sang H, Hamilton R, Ondigo BN, Jaoko W, Odiere MR, Ganley-Leal L. CD193
(
CCR3
) expression by B cells correlates with reduced
IgE
production in paediatric schistosomiasis. Parasite Immunol 2023; 45:e12979. [PMID: 36971331 DOI: 10.1111/pim.12979] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 02/21/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023]
Abstract
We demonstrate that CD193, the eotaxin receptor, is highly expressed on circulating B cells in paediatric schistosomiasis mansoni. CD193 plays a role in directing granulocytes into sites of allergic-like inflammation in the mucosa, but little is known about its functional significance on human B cells. We sought to characterize CD193 expression and its relationship with S. mansoni infection. We found that CD193+ B cells increased with the intensity of schistosome infection. In addition, a significant negative association was observed between CD193 expression by B cells and IgE production. Decreased IgE levels are generally associated with susceptibility to re-infection. B cell stimulation with eotaxin-1 increased CD193 levels whereas IL-4 led to a reduction. This was supported by plasma levels of eotaxin-1 correlating with CD193 levels on B cells and other cells. In contrast, CD193 expression was induced on naive B cells with a combination of IL-10 and schistosome antigens. Whereas T cells had a modest increase in CD193 expression, only B cell CD193 appeared functionally chemotactic to eotaxin-1. Thus, CD193+ B cells, which co-express CXCR5, may be enroute to sites with allergic-like inflammation, such as gastrointestinal follicles, or even to Th2 granulomas, which develop around parasite eggs. Overall, our results suggest that schistosome infection may promote CD193 expression and suppress IgE via IL-10 and other undefined mechanisms related to B cell trafficking. This study adds to our understanding of why young children may have poor immunity. Nonetheless, praziquantel treatment was shown to reduce percentages of circulating CD193+ B cells lending hope for future vaccine efforts.
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Affiliation(s)
- I O Onkanga
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
- KAVI-Institute of Clinical Research, and Department of Medical Microbiology & Immunology, University of Nairobi, Nairobi, Kenya
| | - H Sang
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - R Hamilton
- Elegance Biotechnologies, LLC, Wayne, Pennsylvania, USA
| | - B N Ondigo
- Department of Biochemistry and Molecular Biology, Faculty of Science, Egerton University, Egerton, Kenya
| | - W Jaoko
- KAVI-Institute of Clinical Research, and Department of Medical Microbiology & Immunology, University of Nairobi, Nairobi, Kenya
| | - M R Odiere
- Center for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya
| | - L Ganley-Leal
- Elegance Biotechnologies, LLC, Wayne, Pennsylvania, USA
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Newcombe BC, Olthuis JV, MacLean M, Hamilton R, McAulay T. CBT + Exercise vs Treatment as Usual in Treating Anxiety and Depression in University Students: A Pilot Study. Journal of College Student Psychotherapy 2023. [DOI: 10.1080/87568225.2023.2181255] [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: 02/22/2023]
Affiliation(s)
- Breagh C. Newcombe
- Psychology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Janine V. Olthuis
- Psychology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Matthew MacLean
- Counselling Centre, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Ryan Hamilton
- Psychology, University of New Brunswick, Fredericton, New Brunswick, Canada
| | - Taylor McAulay
- Psychology, University of New Brunswick, Fredericton, New Brunswick, Canada
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Gariscak P, Anson-Cartwright L, Atenafu E, Jiang D, Chung P, Bedard P, Warde P, O'Malley M, Sweet J, Glicksman R, Hamilton R. Safety of minimizing intensity of follow-up on active surveillance for clinical stage I testicular germ cell tumors. Eur Urol 2022. [DOI: 10.1016/s0302-2838(22)00638-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Cacho F, Srinivasan S, Schoumacher R, Hamilton R, Ledbetter J, Moser M, Callison J, Mathes R, Quintero D, Metcalf A, Eastman S, Tolle J, Rushing S, Brown R. 346: Tennessee cystic fibrosis clinical care during the COVID-19 pandemic. J Cyst Fibros 2021. [PMCID: PMC8518430 DOI: 10.1016/s1569-1993(21)01770-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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Chen Z, Hamilton R, Rucker DD. Are We There Yet? An Anticipation Account of the Return Trip Effect. Social Psychological and Personality Science 2021. [DOI: 10.1177/1948550620916054] [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]
Abstract
Research has documented the psychological phenomenon in which the trip back from a destination is experienced as shorter than the trip to the destination. Deemed the “return trip effect” (RTE), prior work explained this phenomenon in terms of differential familiarity between home and outbound destination or an underestimation of initial travel time. The present article posits an anticipation account for the RTE: Outbound trips to a destination tend to foster higher levels of anticipation than return trips. Due to greater anticipation, people’s perception of time elongates. Importantly, the anticipation account makes novel predictions with regard to the occurrence of the RTE that cannot be accounted for by prior explanations. Multiple studies, with diverse methodologies, test and offer evidence in support of an anticipation account of the RTE.
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Affiliation(s)
- Zoey Chen
- Marketing Department, University of Miami, Coral Gables, FL, USA
| | - Ryan Hamilton
- Marketing Department, Emory University, Atlanta, GA, USA
| | - Derek D. Rucker
- Marketing Department, Northwestern University, Evanston, IL, USA
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Hughes S, Gilchrist M, Heard K, Hamilton R, Sneddon J. Treating infections caused by carbapenemase-producing Enterobacterales (CPE): a pragmatic approach to antimicrobial stewardship on behalf of the UKCPA Pharmacy Infection Network (PIN). JAC Antimicrob Resist 2020; 2:dlaa075. [PMID: 34223030 PMCID: PMC8210165 DOI: 10.1093/jacamr/dlaa075] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
The emergence of carbapenemase-producing Enterobacterales (CPE) as a major cause of invasive infection both within the UK and internationally poses a very real concern for all providers of healthcare. The burden of morbidity and mortality associated with CPE infections is well described. The need for early, targeted, effective and safe antimicrobial therapy remains key for the management of these infected patients yet reliable antimicrobial treatment options remain scarce. In the absence of a universal treatment for these CPE invasive infections, individual treatment options tailored to susceptibilities and severity of infection are required. This working group from within the UK Clinical Pharmacy Association (UKCPA) Pharmacy Infection Network has developed evidence-based treatment recommendations to support infection specialists in managing these complex infections. A systematic review of peer-reviewed research was performed and analysed. We report consensus recommendations for the management of CPE-associated infections. The national expert panel makes therapeutic recommendations regarding the pharmacokinetic and pharmacodynamic properties of the drugs and pharmacokinetic targets, dosing, dosage adjustment and monitoring of parameters for novel and established antimicrobial therapies with CPE activity. This manuscript provides the infection specialist with pragmatic and evidence-based options for the management of CPE infections.
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Affiliation(s)
- Stephen Hughes
- Chelsea and Westminster NHS Foundation Trust, 369 Fulham Road, London SW10 9NH, UK
| | - Mark Gilchrist
- Imperial College Healthcare NHS Trust, Fulham Palace Road, London W6 8RF, UK
| | - Katie Heard
- Chelsea and Westminster NHS Foundation Trust, 369 Fulham Road, London SW10 9NH, UK
| | - Ryan Hamilton
- School of Pharmacy, De Montfort University, Leicester LE2 7DP, UK
| | - Jacqueline Sneddon
- Scottish Antimicrobial Prescribing Group, Healthcare Improvement Scotland, 50 West Nile Street, Glasgow G1 2NP, UK
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Al-Ezzi E, Alqaisi H, Iafolla M, Sridhar S, Sacher A, Fallah-Rad N, Jiang D, Catton C, Warde P, Hamilton R, Fleshner N, Zlotta A, Hansen A. 668P Clinical factors that are prognostic for survival outcomes in men with metastatic castration-resistant prostate cancer (mCRPC) treated with radium-223. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.927] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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18
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Hamilton R, Shields S, Mcgucken A, Macdonald J, Perry M, Dunlop A, Gribben E, Galloway P. AB0309 MEASURING THE DIFFERENCE: COMPARISON OF MEASUREMENT OF FREE INFLIXIMAB ANTI-DRUG ANTIBODIES. Ann Rheum Dis 2020. [DOI: 10.1136/annrheumdis-2020-eular.665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Infliximab (IFX) was one of the first TNF alpha inhibitors to be licenced in inflammatory arthritis and is still commonly used today. Studies have shown that approximately 50% of primary IFX responders will suffer from secondary loss of response within the first 12 months of treatment (1). The development of Anti-Drug Antibodies (ADA’s) plays a significant role in this treatment failure (2).Monitoring of ADA’s helps identify those patients who fail to respond to treatment due to low IFX trough levels. In this scenario the presence of ADA’s can aid decision-making regarding increasing IFX dosing or switching biologic therapy to optimise treatment. (3).Objectives:Despite their potential importance the detection of ADAs varies widely depending on the type of assays used. The aim of this study was to determine the qualitative concordance of three commercially available ELISA kits for measurement of free ADAs to IFX on the Grifols Triturus analyser.Methods:150 patient samples from patients with inflammatory conditions and low IFX trough drug levels (≤0.6µg/ml) were analysed for free ADAs using Promonitor, Lisa Tracker and IDKmonitor kits on the Grifols Triturus automated ELISA analyser.Results:Kappa coefficient (κ) analysis indicated a moderate agreement between the Promonitor and IDKmonitor assays (κ =0.484 (95% CI, 0.357 to 0.611)) and the IDKmonitor and Lisa Tracker assays (κ = 0.485 (95% CI, 0.348-0.621)) as well as substantial agreement between the Promonitor and Lisa Tracker assays (κ =0.768 (95% CI, 0.667-0.870)). Figure 1 shows the distribution of samples identified as free ADA positive by each kit.Figure 1.Distribution of samples identified as free ADA positive by Promonitor, Lisa Tracker, and IDKmonitor assays. Fifty samples were considered positive by all assays. Three samples were considered positive by Promonitor and Lisa Tracker, and eight samples were considered positive by Lisa Tracker and IDKmonitor. No samples were considered positive by Promonitor and IDKmonitor. One sample was considered positive by Promonitor only, seven samples were considered positive by Lisa Tracker only, and twenty-six samples were considered positive by IDKmonitorConclusion:All kits appear amenable for utilisation in a high-throughput laboratory though a true quantitative comparison between these kits was precluded by the absence of any certified reference material for free ADAs to IFX.Although broad qualitative agreement was found between the three kits, they should not be used interchangeably for patient management.Further research is required to estimate the impact of free ADAs on efficiency of IFX treatment and patient management.References:[1]Quistrebert J, Hässler S, Bachelet D et al.Incidence and risk factors for adalimumab and infliximab anti-drug antibodies in rheumatoid arthritis: A European retrospective multicohort analysis. Seminars in Arthritis and Rheumatism Volume 48, Issue 6, June 2019, Pages 967-975 2.[2]Moots RJ, Xavier RM, Mok CC, Rahman MU, Tsai W-C, Al-Maini MH, et al. (2017)The impact of anti-drug antibodies on drug concentrations and clinical outcomes in rheumatoid arthritis patients treated with adalimumab, etanercept, or infliximab: Results from a multinational, real-world clinical practice, non-interventional study. PLoS ONE 12(4): e0175207.https://doi.org/10.1371/journal.pone.0175207[3]Smolen JS, Landewé R, Bijlsma J, et al.EULAR recommendations for the management of rheumatoid arthritis with synthetic and biological disease-modifying antirheumatic drugs:2016 update.Annals of the Rheumatic Diseases 2017;76:960-977.Disclosure of Interests:Rhona Hamilton: None declared, Stephanie Shields: None declared, Andrew McGucken: None declared, Jonathan MacDonald: None declared, Martin Perry Grant/research support from: Grifols, Abbvie, Sandoz unrestricted educational grant, Consultant of: Abbvie, Gilead, Celltrion Advisory Board, Speakers bureau: Sandoz, Allan Dunlop: None declared, Elaine Gribben: None declared, Peter Galloway: None declared
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Hayes C, Eley C, Hamilton R, Ashiru-Oredope D, McNulty C. Development and Initial Evaluation of a national Infection Prevention and Antimicrobial Resistance programme for UK Girlguiding and Scouts. Access Microbiol 2020. [DOI: 10.1099/acmi.fis2019.po0035] [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: 11/18/2022] Open
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20
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Nappi L, Thi M, Eigl B, Chi K, Gleave M, So A, Black P, Hamilton R, Daneshmand S, Nichols C, Kollmannsberger C. Differential expression of circulating miR375 and miR371 to detect teratoma and viable germ cell malignancy. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz249.079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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21
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Cunningham T, Franciosi S, Liu M, Roston T, Atallah J, Escudero C, Udupa S, Roberts J, Dhillon S, Dallaire F, Fournier A, Fatah M, Hamilton R, Sanatani S. OUTCOME OF PEDIATRIC UNEXPLAINED CARDIAC ARREST SURVIVORS: A REPORT FROM THE CANADIAN PEDIATRIC HEART RHYTHM NETWORK. Can J Cardiol 2019. [DOI: 10.1016/j.cjca.2019.07.463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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22
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Bhattacharya A, Walsh M, Hamilton R, Singh R, Rahman M, Rodriguez K, Chaudhuri A, Sharma R. Neuromuscular function during aging is protected in baicalein‐treated C57BL/6 mice. FASEB J 2019. [DOI: 10.1096/fasebj.2019.33.1_supplement.651.2] [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: 11/11/2022]
Affiliation(s)
| | - Michael Walsh
- University of Texas Health Science Center at San AntonioSan AntonioTX
| | - Ryan Hamilton
- University of Texas Health Science Center at San AntonioSan AntonioTX
| | - Rashmi Singh
- University of Texas Health Science Center at San AntonioSan AntonioTX
| | - Mizanur Rahman
- University of Texas Health Science Center at San AntonioSan AntonioTX
- College of Arts and SciencesQatar UniversityDohaQatar
| | - Karl Rodriguez
- University of Texas Health Science Center at San AntonioSan AntonioTX
| | - Asish Chaudhuri
- University of Texas Health Science Center at San AntonioSan AntonioTX
| | - Ramaswamy Sharma
- University of Texas Health Science Center at San AntonioSan AntonioTX
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Kearney L, Eccleston D, McGillion J, Lu K, Thai W, Duong M, Kim S, Hamilton R, Delacroix S. The Effects of Cardiac and Non-cardiac Comorbidities on Survival in Patients with Heart Failure and Reduced Ejection Fraction. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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24
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Matthew A, Lutzky-Cohen N, Jamnicky L, Currie K, Gentile A, Mina DS, Fleshner N, Finelli A, Hamilton R, Kulkarni G, Jewett M, Zlotta A, Trachtenberg J, Yang Z, Elterman D. The Prostate Cancer Rehabilitation Clinic: a biopsychosocial clinic for sexual dysfunction after radical prostatectomy. ACTA ACUST UNITED AC 2018; 25:393-402. [PMID: 30607114 DOI: 10.3747/co.25.4111] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Purpose The most prevalent intervention for localized prostate cancer (pca) is radical prostatectomy (rp), which has a 10-year relative survival rate of more than 90%. The improved survival rate has led to a focus on reducing the burden of treatment-related morbidity and improving the patient and partner survivorship experience. Post-rp sexual dysfunction (sdf) has received significant attention, given its substantial effect on patient and partner health-related quality of life. Accordingly, there is a need for sdf treatment to be a fundamental component of pca survivorship programming. Methods Most research about the treatment of post-rp sdf involves biomedical interventions for erectile dysfunction (ed). Although findings support the effectiveness of pro-erectile agents and devices, most patients discontinue use of such aids within 1 year after their rp. Because side effects of pro-erectile treatment have proved to be inadequate in explaining the gap between efficacy and ongoing use, current research focuses on a biopsychosocial perspective of ed. Unfortunately, there is a dearth of literature describing the components of a biopsychosocial program designed for the post-rp population and their partners. Results In this paper, we detail the development of the Prostate Cancer Rehabilitation Clinic (pcrc), which emphasizes multidisciplinary intervention teams, active participation by the partner, and a broad-spectrum medical, psychological, and interpersonal approach. Conclusions The goal of the pcrc is to help patients and their partners achieve optimal sexual health and couple intimacy after rp, and to help design cost-effective and beneficial rehabilitation programs.
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Affiliation(s)
- A Matthew
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - N Lutzky-Cohen
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - L Jamnicky
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - K Currie
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - A Gentile
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - D Santa Mina
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - N Fleshner
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - A Finelli
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - R Hamilton
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - G Kulkarni
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - M Jewett
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - A Zlotta
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - J Trachtenberg
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - Z Yang
- Department of Surgical Oncology, University Health Network, Toronto, ON
| | - D Elterman
- Department of Surgical Oncology, University Health Network, Toronto, ON
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Yglesias B, Andrews K, Hamilton R, Lea J, Shah R, Ebraheim N. Case report: irreducible medial subtalar dislocation with incarcerated anterior talar head fracture in a young patient. J Surg Case Rep 2018; 2018:rjy168. [PMID: 30046437 PMCID: PMC6055541 DOI: 10.1093/jscr/rjy168] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/30/2018] [Indexed: 11/17/2022] Open
Abstract
Subtalar dislocations are rare injuries that typically occur from high-energy injuries. All subtalar dislocations should be attempted to be closed reduced, however, ~32% are irreducible requiring open reduction. We present an irreducible medial subtalar dislocation following a motor vehicle accident with no associated fractures demonstrated on radiograph. However, open reduction revealed an incarcerated anterior talar head fracture that was reduced and stabilized with retrograde K-wires.
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Affiliation(s)
- Benjamin Yglesias
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Kyle Andrews
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Ryan Hamilton
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Justin Lea
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Ronit Shah
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
| | - Nabil Ebraheim
- Department of Orthopaedic Surgery, College of Medicine and Life Sciences, University of Toledo, Toledo, OH, USA
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Abstract
Purpose The x-wave of the dark-adapted (DA) ERG to a red flash reflects DA cone function. This exploratory study of healthy adults aimed to investigate changes in the DA red ERG with flash strength and during dark adaptation to optimise visualisation and therefore quantification of the x-wave. Methods The effect of altering red flash strength was investigated in four subjects by recording ERGs after 20 min dark adaptation to red flashes (0.2–2.0 cd s m−2) using skin electrodes and natural pupils. The effect of dark adaptation duration was investigated in 16 subjects during 20 min in the dark, by recording DA 1.5 red ERGs at 1, 2, 3, 4, 5, 10, 15 and 20 min. Results For a dark adaption period of 20 min, the x-wave was more clearly visualised to weaker (< 0.6 cd s m−2) red flash strengths: to stronger flashes it became obscured by the b-wave. For red flashes of 1.5 cd s m−2, the x-wave was most prominent in ERGs recorded after 1–5 min of dark adaptation: with longer dark adaptation, it was subsumed into the b-wave’s rising edge. Conclusions This small study suggests that x-wave visibility in healthy subjects after 20 min dark adaptation is improved by using flashes weaker than around 0.6 cd s m−2; for flash strengths of 1.5 cd s m−2, x-wave visibility is enhanced by recording after only around 5 min of dark adaptation. No evidence was found that interim red flash ERGs affect the dark-adapted state of the normal retina.
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Affiliation(s)
- R Hamilton
- Department of Clinical Physics and Bio-Engineering, NHS Greater Glasgow and Clyde, Glasgow, UK. .,College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
| | - K Graham
- Department of Clinical Physics and Bio-Engineering, NHS Greater Glasgow and Clyde, Glasgow, UK.,College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Hammond C, Thomas R, Saunders S, Holtslander L, Hamilton R. A modified Delphi study on research priorities in cancer, gender and the arts. ACTA ACUST UNITED AC 2018. [DOI: 10.1386/jaah.9.1.53_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Labombarda F, Hamilton R, Shohoudi A, Aboulhosn J, Broberg C, Cohen S, Cook S, Dore A, Fernandes S, Fournier A, Kay J, Macle L, Mondésert B, Mongeon F, Opotowsky A, Proietti A, Rivard L, Ting J, Zaidi A, Khairy P. Increasing prevalence of atrial fibrillation and permanent atrial tachyarrhythmias in the aging population with congenital heart disease: A multicenter study. Archives of Cardiovascular Diseases Supplements 2018. [DOI: 10.1016/j.acvdsp.2017.11.133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Pieles G, Grosse-Wortmann L, Hader M, Fatah M, Chungsomprasong P, Sloarach C, Mertens L, Hamilton R, Friedberg M. Association of Echocardiographic Parameters of Right Ventricular Remodeling and Myocardial Performance with Modified Task Force Criteria in Adolescents with Arrhythmogenic Right Ventricular Cardiomyopathy (ARVC). Thorac Cardiovasc Surg 2018. [DOI: 10.1055/s-0038-1628333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- G. Pieles
- Bristol Heart Institute/ University of Bristol, Congenital Cardiology, Bristol, United Kingdom
| | | | - M. Hader
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
| | - M. Fatah
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
| | | | - C. Sloarach
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
| | - L. Mertens
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
| | - R. Hamilton
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
| | - M. Friedberg
- Hospital for Sick Kids Toronto, Pediatric Cardiology, Toronto, Canada
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Veeravalli K, Schindler T, Dong E, Yamada M, Hamilton R, Laird MW. Strain engineering to reduce acetate accumulation during microaerobic growth conditions inEscherichia coli. Biotechnol Prog 2017; 34:303-314. [DOI: 10.1002/btpr.2592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/16/2017] [Indexed: 12/11/2022]
Affiliation(s)
- Karthik Veeravalli
- Late Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
| | - Tony Schindler
- Late Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
| | - Emily Dong
- Early Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
| | - Masaki Yamada
- Late Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
| | - Ryan Hamilton
- Late Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
| | - Michael W. Laird
- Early Stage Cell Culture, Genentech, Inc., 1 DNA Way; South San Francisco California 94080
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Antal A, Alekseichuk I, Bikson M, Brockmöller J, Brunoni AR, Chen R, Cohen LG, Dowthwaite G, Ellrich J, Flöel A, Fregni F, George MS, Hamilton R, Haueisen J, Herrmann CS, Hummel FC, Lefaucheur JP, Liebetanz D, Loo CK, McCaig CD, Miniussi C, Miranda PC, Moliadze V, Nitsche MA, Nowak R, Padberg F, Pascual-Leone A, Poppendieck W, Priori A, Rossi S, Rossini PM, Rothwell J, Rueger MA, Ruffini G, Schellhorn K, Siebner HR, Ugawa Y, Wexler A, Ziemann U, Hallett M, Paulus W. Low intensity transcranial electric stimulation: Safety, ethical, legal regulatory and application guidelines. Clin Neurophysiol 2017; 128:1774-1809. [PMID: 28709880 PMCID: PMC5985830 DOI: 10.1016/j.clinph.2017.06.001] [Citation(s) in RCA: 627] [Impact Index Per Article: 89.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 05/29/2017] [Accepted: 06/06/2017] [Indexed: 12/11/2022]
Abstract
Low intensity transcranial electrical stimulation (TES) in humans, encompassing transcranial direct current (tDCS), transcutaneous spinal Direct Current Stimulation (tsDCS), transcranial alternating current (tACS), and transcranial random noise (tRNS) stimulation or their combinations, appears to be safe. No serious adverse events (SAEs) have been reported so far in over 18,000 sessions administered to healthy subjects, neurological and psychiatric patients, as summarized here. Moderate adverse events (AEs), as defined by the necessity to intervene, are rare, and include skin burns with tDCS due to suboptimal electrode-skin contact. Very rarely mania or hypomania was induced in patients with depression (11 documented cases), yet a causal relationship is difficult to prove because of the low incidence rate and limited numbers of subjects in controlled trials. Mild AEs (MAEs) include headache and fatigue following stimulation as well as prickling and burning sensations occurring during tDCS at peak-to-baseline intensities of 1-2mA and during tACS at higher peak-to-peak intensities above 2mA. The prevalence of published AEs is different in studies specifically assessing AEs vs. those not assessing them, being higher in the former. AEs are frequently reported by individuals receiving placebo stimulation. The profile of AEs in terms of frequency, magnitude and type is comparable in healthy and clinical populations, and this is also the case for more vulnerable populations, such as children, elderly persons, or pregnant women. Combined interventions (e.g., co-application of drugs, electrophysiological measurements, neuroimaging) were not associated with further safety issues. Safety is established for low-intensity 'conventional' TES defined as <4mA, up to 60min duration per day. Animal studies and modeling evidence indicate that brain injury could occur at predicted current densities in the brain of 6.3-13A/m2 that are over an order of magnitude above those produced by tDCS in humans. Using AC stimulation fewer AEs were reported compared to DC. In specific paradigms with amplitudes of up to 10mA, frequencies in the kHz range appear to be safe. In this paper we provide structured interviews and recommend their use in future controlled studies, in particular when trying to extend the parameters applied. We also discuss recent regulatory issues, reporting practices and ethical issues. These recommendations achieved consensus in a meeting, which took place in Göttingen, Germany, on September 6-7, 2016 and were refined thereafter by email correspondence.
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Affiliation(s)
- A Antal
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany.
| | - I Alekseichuk
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
| | - M Bikson
- Department of Biomedical Engineering, The City College of New York, New York, USA
| | - J Brockmöller
- Department of Clinical Pharmacology, University Medical Center Goettingen, Germany
| | - A R Brunoni
- Service of Interdisciplinary Neuromodulation, Department and Institute of Psychiatry, Laboratory of Neurosciences (LIM-27) and Interdisciplinary Center for Applied Neuromodulation University Hospital, University of São Paulo, São Paulo, Brazil
| | - R Chen
- Division of Neurology, Department of Medicine, University of Toronto and Krembil Research Institute, Toronto, Ontario, Canada
| | - L G Cohen
- Human Cortical Physiology and Neurorehabilitation Section, National Institute of Neurological Disorders and Stroke NIH, Bethesda, USA
| | | | - J Ellrich
- Department of Health Science and Technology, Aalborg University, Aalborg, Denmark; Institute of Physiology and Pathophysiology, University of Erlangen-Nürnberg, Erlangen, Germany; EBS Technologies GmbH, Europarc Dreilinden, Germany
| | - A Flöel
- Universitätsmedizin Greifswald, Klinik und Poliklinik für Neurologie, Greifswald, Germany
| | - F Fregni
- Spaulding Neuromodulation Center, Spaulding Rehabilitation Hospital, Harvard Medical School, Boston, MA, USA
| | - M S George
- Brain Stimulation Division, Medical University of South Carolina, and Ralph H. Johnson Veterans Affairs Medical Center, Charleston, SC, USA
| | - R Hamilton
- Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA
| | - J Haueisen
- Institute of Biomedical Engineering and Informatics, Technische Universität Ilmenau, Germany
| | - C S Herrmann
- Experimental Psychology Lab, Department of Psychology, European Medical School, Carl von Ossietzky Universität, Oldenburg, Germany
| | - F C Hummel
- Defitech Chair of Clinical Neuroengineering, Centre of Neuroprosthetics (CNP) and Brain Mind Institute, Swiss Federal Institute of Technology (EPFL), Geneva, Switzerland; Defitech Chair of Clinical Neuroengineering, Clinique Romande de Réadaptation, Swiss Federal Institute of Technology (EPFL Valais), Sion, Switzerland
| | - J P Lefaucheur
- Department of Physiology, Henri Mondor Hospital, Assistance Publique - Hôpitaux de Paris, and EA 4391, Nerve Excitability and Therapeutic Team (ENT), Faculty of Medicine, Paris Est Créteil University, Créteil, France
| | - D Liebetanz
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
| | - C K Loo
- School of Psychiatry & Black Dog Institute, University of New South Wales, Sydney, Australia
| | - C D McCaig
- Institute of Medical Sciences, University of Aberdeen, Aberdeen, Scotland, UK
| | - C Miniussi
- Center for Mind/Brain Sciences CIMeC, University of Trento, Rovereto, Italy; Cognitive Neuroscience Section, IRCCS Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - P C Miranda
- Institute of Biophysics and Biomedical Engineering, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal
| | - V Moliadze
- Institute of Medical Psychology and Medical Sociology, University Hospital of Schleswig-Holstein (UKSH), Campus Kiel, Christian-Albrechts-University, Kiel, Germany
| | - M A Nitsche
- Department of Psychology and Neurosciences, Leibniz Research Centre for Working Environment and Human Factors, Dortmund, Germany; Department of Neurology, University Hospital Bergmannsheil, Bochum, Germany
| | - R Nowak
- Neuroelectrics, Barcelona, Spain
| | - F Padberg
- Department of Psychiatry and Psychotherapy, Munich Center for Brain Stimulation, Ludwig-Maximilian University Munich, Germany
| | - A Pascual-Leone
- Division of Cognitive Neurology, Harvard Medical Center and Berenson-Allen Center for Noninvasive Brain Stimulation at Beth Israel Deaconess Medical Center, Boston, USA
| | - W Poppendieck
- Department of Information Technology, Mannheim University of Applied Sciences, Mannheim, Germany
| | - A Priori
- Center for Neurotechnology and Experimental Brain Therapeutich, Department of Health Sciences, University of Milan Italy; Deparment of Clinical Neurology, University Hospital Asst Santi Paolo E Carlo, Milan, Italy
| | - S Rossi
- Department of Medicine, Surgery and Neuroscience, Human Physiology Section and Neurology and Clinical Neurophysiology Section, Brain Investigation & Neuromodulation Lab, University of Siena, Italy
| | - P M Rossini
- Area of Neuroscience, Institute of Neurology, University Clinic A. Gemelli, Catholic University, Rome, Italy
| | | | - M A Rueger
- Department of Neurology, University Hospital of Cologne, Germany
| | | | | | - H R Siebner
- Danish Research Centre for Magnetic Resonance, Centre for Functional and Diagnostic Imaging and Research, Copenhagen University Hospital Hvidovre, Hvidovre, Denmark; Department of Neurology, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Y Ugawa
- Department of Neurology, Fukushima Medical University, Fukushima, Japan; Fukushima Global Medical Science Center, Advanced Clinical Research Center, Fukushima Medical University, Japan
| | - A Wexler
- Department of Science, Technology & Society, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - U Ziemann
- Department of Neurology & Stroke, and Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - M Hallett
- Human Motor Control Section, National Institute of Neurological Disorders and Stroke, NIH, Bethesda, MD, USA
| | - W Paulus
- Department of Clinical Neurophysiology, University Medical Center Göttingen, Georg August University, Göttingen, Germany
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Hamilton R. T010 Generating evidence: On the validity of metaanalyses of transcranial stimulation trials. Clin Neurophysiol 2017. [DOI: 10.1016/j.clinph.2016.10.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Brunet J, Saunders S, Gifford W, Thomas R, Hamilton R. An exploratory qualitative study of the meaning and value of a running/walking program for women after a diagnosis of breast cancer. Disabil Rehabil 2017. [DOI: 10.1080/09638288.2017.1283714] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Affiliation(s)
- Jennifer Brunet
- School of Human Kinetics, University of Ottawa, Ottawa, ON, Canada
| | | | - Wendy Gifford
- School of Nursing, University of Ottawa, Ottawa, ON, Canada
| | - Roanne Thomas
- School of Rehabilitation Sciences, University of Ottawa, Ottawa, ON, Canada
| | - Ryan Hamilton
- Faculty of Psychology, University of New Brunswick, Fredericton, NB, Canada
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Hammond C, Thomas R, Gifford W, Poudrier J, Hamilton R, Brooks C, Morrison T, Scott T, Warner D. Cycles of silence: First Nations women overcoming social and historical barriers in supportive cancer care. Psychooncology 2017; 26:191-198. [DOI: 10.1002/pon.4335] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Revised: 10/26/2016] [Accepted: 11/25/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Chad Hammond
- School of Rehabilitation Sciences; University of Ottawa; Ottawa ON Canada
| | - Roanne Thomas
- School of Rehabilitation Sciences; University of Ottawa; Ottawa ON Canada
| | - Wendy Gifford
- School of Nursing; University of Ottawa; Ottawa ON Canada
| | - Jennifer Poudrier
- Department of Sociology; University of Saskatchewan; Saskatoon SK Canada
| | - Ryan Hamilton
- Department of Psychology; University of New Brunswick; Fredericton NB Canada
| | - Carolyn Brooks
- Department of Sociology; University of Saskatchewan; Saskatoon SK Canada
| | - Tricia Morrison
- School of Rehabilitation Sciences; University of Ottawa; Ottawa ON Canada
| | - Tracy Scott
- First Nations, Inuit, and Métis Program; Saint Elizabeth Health Care; Winnipeg MB Canada
| | - Doris Warner
- First Nations, Inuit, and Métis Program; Saint Elizabeth Health Care; Markham ON Canada
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Miedema B, Bowes A, Hamilton R, Reading S. Assessing the Efficacy of a Group Mediated Nutritional Knowledge Intervention for Individuals with Obesity. CAN J DIET PRACT RES 2016; 77:206-209. [DOI: 10.3148/cjdpr-2016-022] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Purpose: This study reports on the effect of a group-based nutrition and physical activity intervention program on nutrition knowledge and eating habits in a cohort of people with obesity. Methods: A quasi-experimental design with pre- and post-test measures. The intervention consisted of physical activity led by certified exercise physiologists and a nutritional education component led by registered dietitians over a 6-month period followed by 6 months of self-management. Participants’ nutrition knowledge and eating habits were assessed using the modified Nutrition Assessment, the Nutrition Knowledge Survey, and the Food Choice Questionnaires at baseline, after the 6-month intervention, and after 6 months of self-management. Results: Complete data were available for 59 (40%) of participants after 12 months because of attrition. Nutritional knowledge and behaviours improved. Participants reported increasing their consumption of healthy foods during the active intervention and maintained these changes through the self-management phase. Knowledge of healthy foods was improved and a greater likelihood of choosing food for weight control and health properties was reported. Conclusions: Knowledge and reported consumption of healthier nutrition improved during the active intervention and was maintained during the self-management period for individuals who completed the program. Registered dietitians can play an important role in managing patients with obesity in group settings.
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Affiliation(s)
- Baukje Miedema
- Dalhousie University Family Medicine Teaching Unit, Dr. Everett Chalmers Regional Hospital, Fredericton, NB, Canada
| | - Andrea Bowes
- Department of Nursing and Health Sciences, The University of New Brunswick, Saint John, NB Canada
| | - Ryan Hamilton
- Department of Psychology, Faculty of Arts, University of New Brunswick, Fredericton, NB, Canada
| | - Stacey Reading
- Department of Sport and Exercise Science, Faculty of Science, University of Auckland, Auckland, New Zealand
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Cheung C, Healey J, Hamilton R, Mellor G, Steinberg C, Sanatani S, Laksman Z, Krahn A. PHOSPHOLAMBAN CARDIOMYOPATHY: A CANADIAN PERSPECTIVE ON A UNIQUE DUTCH FOUNDER POPULATION. Can J Cardiol 2016. [DOI: 10.1016/j.cjca.2016.07.146] [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: 11/26/2022] Open
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Hamilton R, Walsh M, Singh R, Rodriguez K, Gao X, Rahman MM, Chaudhuri A, Bhattacharya A. Oxidative damage to myelin proteins accompanies peripheral nerve motor dysfunction in aging C57BL/6 male mice. J Neurol Sci 2016; 370:47-52. [PMID: 27772785 DOI: 10.1016/j.jns.2016.09.021] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 09/01/2016] [Accepted: 09/12/2016] [Indexed: 01/31/2023]
Abstract
Aging is associated with a decline in peripheral nerve function of both motor and sensory nerves. The decline in function of peripheral sensorimotor nerves with aging has been linked to sarcopenia, the age-related decline in muscle mass and function that significantly compromises the quality of life in older humans. In this study, we report a significant increase in oxidized fatty acids and insoluble protein carbonyls in sciatic nerves of aged C57BL/6 male mice (28-30mo) that exhibit a profound decline in motor nerve function and degenerative changes in both axon and myelin structure, compared to young mice (6-8mo). Our data further suggests that this age-related loss of function of peripheral motor nerves is likely precipitated by changes in mechanisms that protect and/or repair oxidative damage. We predict that interventions that target these mechanisms may protect against age-related decline in peripheral sensorimotor nerve function and likely improve the debilitating outcome of sarcopenia in older humans.
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Affiliation(s)
- Ryan Hamilton
- Barshop Institute for Longevity and Aging Studies, San Antonio, TX, USA
| | - Michael Walsh
- Department of Cell Systems and Anatomy, The University of Texas Health Science Center, San Antonio, TX, USA; Barshop Institute for Longevity and Aging Studies, San Antonio, TX, USA
| | - Rashmi Singh
- Barshop Institute for Longevity and Aging Studies, San Antonio, TX, USA
| | - Karl Rodriguez
- Barshop Institute for Longevity and Aging Studies, San Antonio, TX, USA
| | - Xiaoli Gao
- Department of Biochemistry, The University of Texas Health Science Center, San Antonio, TX, USA
| | - Md Mizanur Rahman
- Department of Medicine, The University of Texas Health Science Center, San Antonio, TX, USA
| | - Asish Chaudhuri
- Department of Biochemistry, UT Southwestern Medical Center, Dallas, TX, USA
| | - Arunabh Bhattacharya
- Department of Cell Systems and Anatomy, The University of Texas Health Science Center, San Antonio, TX, USA; Barshop Institute for Longevity and Aging Studies, San Antonio, TX, USA.
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Abstract
Secondary lymphedema after cancer may result in distress, yet few interventions exist to support coping skills in this population. As part of a community-based intervention, we piloted the use of creative practices to promote active orientations to hope. A total of 19 participants completed the workshops; 11 collaged. The main themes address the collage processes as well as their content. The former addresses sub-themes such as selecting/composing. The latter includes sub-themes related to movement depicted in the collages. Collages and their associated discussions concretized hoping as an active and accessible process for participants living with two chronic illnesses.
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Hamilton R, Graham K. Effect of shorter dark adaptation on ISCEV standard DA 0.01 and DA 3 skin ERGs in healthy adults. Doc Ophthalmol 2016; 133:11-9. [DOI: 10.1007/s10633-016-9554-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2015] [Accepted: 07/04/2016] [Indexed: 12/01/2022]
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Hosni A, Warde P, Jewett M, Bedard P, Hamilton R, Moore M, Nayan M, Huang R, Atenafu EG, O'Malley M, Sweet J, Chung P. Clinical Characteristics and Outcomes of Late Relapse in Stage I Testicular Seminoma. Clin Oncol (R Coll Radiol) 2016; 28:648-54. [PMID: 27339401 DOI: 10.1016/j.clon.2016.06.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 05/16/2016] [Accepted: 06/23/2016] [Indexed: 01/31/2023]
Abstract
AIMS To identify the characteristics and outcomes associated with late relapse in stage I seminoma. MATERIALS AND METHODS A retrospective review was carried out of all patients with stage I seminoma managed at our institution between 1981 and 2011. Data were obtained from a prospectively maintained database. Late relapse was defined as tumour recurrence > 2 years after orchiectomy. RESULTS Overall, 1060 stage I seminoma patients were managed with active surveillance (n=766) or adjuvant radiotherapy (n=294). At a median follow-up of 10.6 years (range 1.2-30), 142 patients relapsed at a median (range) of 14 (3-129) months; 128 on active surveillance and 14 after adjuvant radiotherapy. The late relapse rate for the active surveillance and adjuvant radiotherapy groups was 4% and 1%, respectively. There was no specific clinicopathological factor associated with late relapse. Isolated para-aortic node(s) was the most common relapse site in active surveillance patients either in late (88%) or early relapse (82%). Among the active surveillance group, no patients with late relapse subsequently developed a second relapse after either salvage radiotherapy (n=25) or chemotherapy (n=6), whereas in early relapse patients a second relapse was reported in seven (10%) of 72 patients treated with salvage radiotherapy and one (4%) of 23 patients who received chemotherapy; all second relapses were subsequently salvaged with chemotherapy. No patient in the adjuvant radiotherapy group developed a second relapse after salvage chemotherapy (n=10) or inguinal radiotherapy/surgery (n=4). Of seven deaths, only one was related to seminoma. Among active surveillance patients, the 10 year overall survival for late and early relapse groups were 100% and 96% (P = 0.2), whereas the 10 year cancer-specific survival rates were 100% and 99% (P = 0.3), respectively. CONCLUSIONS In stage I seminoma, the extent and pattern of late relapse is similar to that for early relapse. For active surveillance patients, selective use of salvage radiotherapy/chemotherapy for relapse results in excellent outcomes regardless of the timing of relapse, whereas salvage radiotherapy for late relapse seems to be associated with a minimal risk of second relapse.
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Affiliation(s)
- A Hosni
- Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - P Warde
- Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - M Jewett
- Department of Surgical Oncology (Urology), Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - P Bedard
- Department of Medical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - R Hamilton
- Department of Surgical Oncology (Urology), Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - M Moore
- Department of Medical Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - M Nayan
- Department of Surgical Oncology (Urology), Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - R Huang
- Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - E G Atenafu
- Department of Biostatistics, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - M O'Malley
- Department of Medical Imaging, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - J Sweet
- Department of Pathology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada
| | - P Chung
- Department of Radiation Oncology, Princess Margaret Cancer Centre/University of Toronto, Toronto, Ontario, Canada.
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Livingstone IAT, Tarbert CM, Giardini ME, Bastawrous A, Middleton D, Hamilton R. Photometric Compliance of Tablet Screens and Retro-Illuminated Acuity Charts As Visual Acuity Measurement Devices. PLoS One 2016; 11:e0150676. [PMID: 27002333 PMCID: PMC4803292 DOI: 10.1371/journal.pone.0150676] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/16/2016] [Indexed: 11/19/2022] Open
Abstract
Mobile technology is increasingly used to measure visual acuity. Standards for chart-based acuity tests specify photometric requirements for luminance, optotype contrast and luminance uniformity. Manufacturers provide some photometric data but little is known about tablet performance for visual acuity testing. This study photometrically characterised seven tablet computers (iPad, Apple inc.) and three ETDRS (Early Treatment Diabetic Retinopathy Study) visual acuity charts with room lights on and off, and compared findings with visual acuity measurement standards. Tablet screen luminance and contrast were measured using nine points across a black and white checkerboard test screen at five arbitrary brightness levels. ETDRS optotypes and adjacent white background luminance and contrast were measured. All seven tablets (room lights off) exceeded the most stringent requirement for mean luminance (≥ 120 cd/m2) providing the nominal brightness setting was above 50%. All exceeded contrast requirement (Weber ≥ 90%) regardless of brightness setting, and five were marginally below the required luminance uniformity threshold (Lmin/Lmax ≥ 80%). Re-assessing three tablets with room lights on made little difference to mean luminance or contrast, and improved luminance uniformity to exceed the threshold. The three EDTRS charts (room lights off) had adequate mean luminance (≥ 120 cd/m2) and Weber contrast (≥ 90%), but all three charts failed to meet the luminance uniformity standard (Lmin/Lmax ≥ 80%). Two charts were operating beyond manufacturer's recommended lamp replacement schedule. With room lights on, chart mean luminance and Weber contrast increased, but two charts still had inadequate luminance uniformity. Tablet computers showed less inter-device variability, higher contrast, and better luminance uniformity than charts in both lights-on and lights-off environments, providing brightness setting was >50%. Overall, iPad tablets matched or marginally out-performed ETDRS charts in terms of photometric compliance with high contrast acuity standards.
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Affiliation(s)
- I. A. T. Livingstone
- Department of Ophthalmology & Glasgow Centre for Ophthalmic Research, NHS Greater Glasgow & Clyde, Glasgow, United Kingdom
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- * E-mail:
| | - C. M. Tarbert
- Department of Clinical Physics, NHS Greater Glasgow & Clyde, Glasgow, United Kingdom
| | - M. E. Giardini
- Department of Biomedical Engineering, University of Strathclyde, Glasgow, United Kingdom
| | - A. Bastawrous
- International Centre for Eye Health, Clinical Research Department, London School of Hygiene and Tropical Medicine (LSHTM), London, United Kingdom
| | - D. Middleton
- Department of Clinical Physics, NHS Greater Glasgow & Clyde, Glasgow, United Kingdom
| | - R. Hamilton
- College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, United Kingdom
- Department of Clinical Physics, NHS Greater Glasgow & Clyde, Glasgow, United Kingdom
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Elgafy H, Hamilton R, Peters N, Paull D, Hassan A. Critical care of obese patients during and after spine surgery. World J Crit Care Med 2016; 5:83-88. [PMID: 26855897 PMCID: PMC4733460 DOI: 10.5492/wjccm.v5.i1.83] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 10/14/2015] [Accepted: 12/21/2015] [Indexed: 02/06/2023] Open
Abstract
Obesity is one of the most prevalent health problems facing the United States today, with a recent JAMA article published in 2014 estimating the prevalence of one third of all adults in the United States being obese. Also, due to technological advancements, the incidence of spine surgeries is growing. Considering these overall increases in both obesity and the performance of spinal surgeries, it can be inferred that more spinal surgery candidates will be obese. Due to this, certain factors must be taken into consideration when dealing with spine surgeries in the obese. Obesity is closely correlated with additional medical comorbidities, including hypertension, coronary artery disease, congestive heart failure, and diabetes mellitus. The pre-operative evaluation may be more difficult, as a more extensive medical evaluation may be needed. Also, adequate radiographic images can be difficult to obtain due to patient size and equipment limitations. Administering anesthesia becomes more difficult, as does proper patient positioning. Post-operatively, the obese patient is at greater risk for reintubation, difficulty with pain control, wound infection and deep vein thrombosis. However, despite these concerns, appropriate clinical outcomes can still be achieved in the obese spine surgical candidate. Obesity, therefore, is not a contraindication to spine surgery, and appropriate patient selection remains the key to obtaining favorable clinical outcomes.
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Chungsomprasong P, Hamilton R, Fatah M, Seed M, Manlhiot C, Yoo S, McCrindle B, Grosse-Wortmann L. PRESENTATION AND DISEASE PROGRESSION OF CHILDREN AND ADOLESCENTS EVALUATED FOR ARRHYTHMOGENIC RIGHT VENTRICULAR CARDIOMYOPATHY. Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Dhillon S, Connolly B, Hamilton R. ARRHYTHMIAS IN CHILDREN WITH PERIPHERALLY INSERTED CENTRAL CATHETERS (PICCS). Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.085] [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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Hamilton R, Mapani A, DaCosta J, Pavesio C, Flanagan D. The evolving role of nurses and allied health professionals in the management of age-related macula degeneration. Acta Ophthalmol 2015. [DOI: 10.1111/j.1755-3768.2015.0191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R. Hamilton
- Medical Retina; Moorfields Eye Hospital; London United Kingdom
| | - A. Mapani
- Medical Retina; Moorfields Eye Hospital; London United Kingdom
| | - J. DaCosta
- Medical Retina; Moorfields Eye Hospital; London United Kingdom
| | - C. Pavesio
- Medical Retina; Moorfields Eye Hospital; London United Kingdom
| | - D. Flanagan
- Medical Retina; Moorfields Eye Hospital; London United Kingdom
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Hamilton R, Thomas R. Renegotiating hope while living with lymphoedema after cancer: a qualitative study. Eur J Cancer Care (Engl) 2015; 25:822-31. [DOI: 10.1111/ecc.12382] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2015] [Indexed: 11/29/2022]
Affiliation(s)
- R. Hamilton
- Department of Psychology; University of New Brunswick; Fredericton NB Canada
| | - R. Thomas
- Faculty of Health Sciences; University of Ottawa; Ottawa ON Canada
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Callander D, Read P, Minichiello V, Hamilton R, Chow EPF, Ali H, Lewis D, Hellard M, Donovan B. P14.25 Hiv and stis among male sex workers attending australian sexual health clinics. Br J Vener Dis 2015. [DOI: 10.1136/sextrans-2015-052270.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Zhang HM, Fu J, Hamilton R, Diaz V, Zhang Y. The mammalian target of rapamycin modulates the immunoproteasome system in the heart. J Mol Cell Cardiol 2015; 86:158-67. [PMID: 26239133 DOI: 10.1016/j.yjmcc.2015.07.027] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 07/11/2015] [Accepted: 07/28/2015] [Indexed: 12/16/2022]
Abstract
The mammalian target of rapamycin (mTOR) plays an important role in cardiac development and function. Inhibition of mTOR by rapamycin has been shown to attenuate pathological cardiac hypertrophy and improve the function of aging heart, accompanied by an inhibition of the cardiac proteasome activity. The current study aimed to determine the potential mechanism(s) by which mTOR inhibition modulates cardiac proteasome. Inhibition of mTOR by rapamycin was found to reduce primarily the immunoproteasome in both H9c2 cells in vitro and mouse heart in vivo, without significant effect on the constitutive proteasome and protein ubiquitination. Concurrent with the reduction of the immunoproteasome, rapamycin reduced two important inflammatory response pathways, the NF-κB and Stat3 signaling. In addition, rapamycin attenuated the induction of the immunoproteasome in H9c2 cells by inflammatory cytokines, including INFγ and TNFα, by suppressing NF-κB signaling. These data indicate that rapamycin indirectly modulated immunoproteasome through the suppression of inflammatory response pathways. Lastly, the role of the immunoproteasome during the development of cardiac hypertrophy was investigated. Administration of a specific inhibitor of the immunoproteasome ONX 0914 attenuated isoproterenol-induced cardiac hypertrophy, suggesting that the immunoproteasome may be involved in the development of cardiac hypertrophy and therefore could be a therapeutic target. In conclusion, rapamycin inhibits the immunoproteasome through its effect on the inflammatory signaling pathways and the immunoproteasome could be a potential therapeutic target for pathological cardiac hypertrophy.
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Affiliation(s)
- Hong-Mei Zhang
- Department of Clinical Oncology, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
| | - Jianliang Fu
- Department of Neurology, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai, China
| | - Ryan Hamilton
- Barshop Institute, The University of Texas Health Science Center at San Antonio, TX 78249, United States
| | - Vivian Diaz
- Barshop Institute, The University of Texas Health Science Center at San Antonio, TX 78249, United States
| | - Yiqiang Zhang
- Barshop Institute, The University of Texas Health Science Center at San Antonio, TX 78249, United States; Department of Physiology, The University of Texas Health Science Center at San Antonio, TX 78249, United States
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Sullivan J, Kopp R, Stratton K, Manschreck C, Corines M, Rau-Murthy R, Hayes J, Lincon A, Ashraf A, Thomas T, Schrader K, Gallagher D, Hamilton R, Scher H, Lilja H, Scardino P, Eastham J, Offit K, Vijai J, Klein RJ. An analysis of the association between prostate cancer risk loci, PSA levels, disease aggressiveness and disease-specific mortality. Br J Cancer 2015; 113:166-72. [PMID: 26068399 PMCID: PMC4647539 DOI: 10.1038/bjc.2015.199] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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: 02/04/2015] [Revised: 04/24/2015] [Accepted: 05/05/2015] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Genome-wide association studies have identified multiple single-nucleotide polymorphsims (SNPs) associated with prostate cancer (PCa). Although these SNPs have been clearly associated with disease risk, their relationship with clinical outcomes is less clear. Our aim was to assess the frequency of known PCa susceptibility alleles within a single institution ascertainment and to correlate risk alleles with disease-specific outcomes. METHODS We genotyped 1354 individuals treated for localised PCa between June 1988 and December 2007. Blood samples were prospectively collected and de-identified before being genotyped and matched to phenotypic data. We investigated associations between 61 SNPs and disease-specific end points using multivariable analysis and also determined if SNPs were associated with PSA at diagnosis. RESULTS Seven SNPs showed associations on multivariable analysis (P<0.05), rs13385191 with both biochemical recurrence (BR) and castrate metastasis (CM), rs339331 (BR), rs1894292, rs17178655 and rs11067228 (CM), and rs11902236 and rs4857841 PCa-specific mortality. After applying a Bonferroni correction for number of SNPs (P<0.0008), the only persistent significant association was between rs17632542 (KLK3) and PSA levels at diagnosis (P=1.4 × 10(-5)). CONCLUSIONS We confirmed that rs17632542 in KLK3 is associated with PSA at diagnosis. No significant association was seen between loci and disease-specific end points when accounting for multiple testing. This provides further evidence that known PCa risk SNPs do not predict likelihood of disease progression.
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Affiliation(s)
- J Sullivan
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - R Kopp
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - K Stratton
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - C Manschreck
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - M Corines
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - R Rau-Murthy
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - J Hayes
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - A Lincon
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - A Ashraf
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - T Thomas
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - K Schrader
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - D Gallagher
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - R Hamilton
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - H Scher
- Department of Medicine, Genitourinary Medical Oncology, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - H Lilja
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - P Scardino
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - J Eastham
- Department of Surgery, Urology Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - K Offit
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - J Vijai
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
| | - R J Klein
- Department of Medicine, Clinical Genetics Service, Memorial Sloan-Kettering Cancer Center, New York, NY, USA
- Icahn Institute for Genomics and Multiscale Biology, Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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Hamilton R, Patel P, Balaggan K, Restori M, Ilginis T, Drew M, McGovern M, Vitali J, Marsteller L. SU-E-T-16: A Comparison of Expected Dwell Times and Dose Variations for NAMD Patients Treated with An Episcleral Brachytherapy Device. Med Phys 2015. [DOI: 10.1118/1.4924377] [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: 11/07/2022] Open
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