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Vine CAJ, Rue C, Walker F, Blacker SD, Myers SD, Doherty J. A comparison of physical performance during one- and two-person simulated casualty drags. Appl Ergon 2023; 110:104001. [PMID: 36913878 DOI: 10.1016/j.apergo.2023.104001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
The ability to drag a casualty to safety is critical for numerous physically demanding occupations. This study aimed to establish whether the pulling forces during a one-person 55 kg simulated casualty drag is representative of a two-person 110 kg drag. Twenty men completed up to 12 × 20m simulated casualty drags using a drag bag (55/110 kg) on a grassed sports pitch, with completion times and forces exerted measured. Completion time for the one-person 55 and 110 kg drags were 9.56 ± 1.18s and 27.08 ± 7.71s. Completion time for the 110 kg two-person drags for forwards and backwards iterations were 8.36 ± 1.23s and 11.04 ± 1.11s. The average individual force exerted during the one-person 55 kg drag was equivalent to the average individual contribution during the two-person 110 kg drag (t(16) = 3.3780, p < 0.001); suggesting a one-person 55 kg simulated casualty drag is representative of the individual contribution to a two-person 110 kg simulated casualty drag. Individual contributions can however vary during two-person simulated casualty drags.
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Affiliation(s)
- C A J Vine
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK.
| | - C Rue
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK
| | - F Walker
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK
| | - S D Blacker
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK
| | - S D Myers
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK
| | - J Doherty
- Occupational Performance Research Group, Institute of Sport, Nursing and Allied Health, University of Chichester, College Lane, Chichester, West Sussex, PO19 6PE, UK
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Cecchi M, Adachi M, Basile A, Buhl DL, Chadchankar H, Christensen S, Christian E, Doherty J, Fadem KC, Farley B, Forman MS, Honda S, Johannesen J, Kinon BJ, Klamer D, Marino MJ, Missling C, O'Donnell P, Piser T, Puryear CB, Quirk MC, Rotte M, Sanchez C, Smith DG, Uslaner JM, Javitt DC, Keefe RSE, Mathalon D, Potter WZ, Walling DP, Ereshefsky L. Validation of a suite of ERP and QEEG biomarkers in a pre-competitive, industry-led study in subjects with schizophrenia and healthy volunteers. Schizophr Res 2023; 254:178-189. [PMID: 36921403 DOI: 10.1016/j.schres.2023.02.018] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Revised: 11/23/2022] [Accepted: 02/10/2023] [Indexed: 03/18/2023]
Abstract
OBJECTIVE Complexity and lack of standardization have mostly limited the use of event-related potentials (ERPs) and quantitative EEG (QEEG) biomarkers in drug development to small early phase trials. We present results from a clinical study on healthy volunteers (HV) and patients with schizophrenia (SZ) that assessed test-retest, group differences, variance, and correlation with functional assessments for ERP and QEEG measures collected at clinical and commercial trial sites with standardized instrumentation and methods, and analyzed through an automated data analysis pipeline. METHODS 81 HV and 80 SZ were tested at one of four study sites. Subjects were administered two ERP/EEG testing sessions on separate visits. Sessions included a mismatch negativity paradigm, a 40 Hz auditory steady-state response paradigm, an eyes-closed resting state EEG, and an active auditory oddball paradigm. SZ subjects were also tested on the Brief Assessment of Cognition (BAC), Positive and Negative Syndrome Scale (PANSS), and Virtual Reality Functional Capacity Assessment Tool (VRFCAT). RESULTS Standardized ERP/EEG instrumentation and methods ensured few test failures. The automated data analysis pipeline allowed for near real-time analysis with no human intervention. Test-retest reliability was fair-to-excellent for most of the outcome measures. SZ subjects showed significant deficits in ERP and QEEG measures consistent with published academic literature. A subset of ERP and QEEG measures correlated with functional assessments administered to the SZ subjects. CONCLUSIONS With standardized instrumentation and methods, complex ERP/EEG testing sessions can be reliably performed at clinical and commercial trial sites to produce high-quality data in near real-time.
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Affiliation(s)
| | | | - A Basile
- Merck & Co., Inc., Kenilworth, NJ, USA
| | | | | | | | | | | | | | | | | | | | | | | | - D Klamer
- Anavex Life Sciences Corp., NY, USA
| | | | | | | | - T Piser
- Onsero Therapeutics, MA, USA
| | | | | | | | | | | | | | | | | | - D Mathalon
- University of California, San Francisco, CA, USA
| | - W Z Potter
- Independent Consultant, Philadelphia, PA, USA
| | | | - L Ereshefsky
- CenExel Research, USA; University of Texas Health Science Center at San Antonio, TX, USA
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Rue CA, D Myers S, L Coakley S, M Ashdown K, J Lee B, J Hale B, G Siddall A, C Needham-Beck S, L Hinde K, I Osofa J, S Walker F, Fieldhouse A, A J Vine C, Doherty J, R Flood T, F Walker E, Wardle S, P Greeves J, D Blacker S. Changes in physical performance during British Army Junior Entry, British Army Standard Entry and Royal Air Force Basic Training. BMJ Mil Health 2023:e002285. [PMID: 36725103 DOI: 10.1136/military-2022-002285] [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: 10/07/2022] [Accepted: 12/27/2022] [Indexed: 02/03/2023]
Abstract
INTRODUCTION The purpose was to quantify physical performance in men and women during British Army Junior Entry (Army-JE), British Army Standard Entry (Army-SE) and Royal Air Force (RAF) basic training (BT). DESIGN Prospective longitudinal study. METHODS 381 participants ((339 men and 42 women) n=141 Army-JE, n=132 Army-SE, n=108 RAF) completed a 2 km run, medicine ball throw (MBT) and isometric mid-thigh pull (MTP), pre-BT and post-BT. To examine changes in pre-BT to post-BT physical test performance, for each course, paired Student t-test and Wilcoxon test were applied to normally and non-normally distributed data, respectively, with effect sizes reported as Cohen's D and with rank biserial correlations, respectively. A one-way between-subjects analysis of variance (ANOVA) (or Welch ANOVA for non-normally distributed data) compared performance between quartiles based on test performance pre-BT. Where the main tests statistic, p value and effect sizes identified likely effect of quartile, post hoc comparisons were made using Games-Howell tests with Tukey's p value. Data are presented as mean±SD, with statistical significance set at p<0.05. RESULTS During BT, 2 km run time improved by 13±46 s (-2.1%±8.1%), 30±64 s (-4.8%±12.3%) and 24±27 s (-4.5%±5.1%) for Army-JE, Army-SE and RAF, respectively (all p<0.005). MBT distance increased by 0.27±0.28 m (6.8%±7.0%) for Army-JE (p<0.001) and 0.07±0.46 m (2.3%±10.9%) for Army-SE (p=0.040), but decreased by 0.08±0.27 m (-1.4%±6.0%) for RAF (p=0.002). MTP force increased by 80±281 n (10.8%±27.6%) for Army-JE (p<0.001) and did not change for Army-SE (-36±295 n, -0.7%±20.6%, p=0.144) or RAF (-9±208 n, 1.0±17.0, p=0.603). For all tests and cohorts, participants in the lowest quartile of pre-BT performance scores demonstrated greater improvements, compared with participants in the highest quartile (except Army-JE MBT, ∆% change similar between all quartiles). CONCLUSIONS Changes in physical performance were observed for the three fitness tests following the different BT courses, and recruits with the lowest strength and aerobic fitness experienced greatest improvements.
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Affiliation(s)
- C A Rue
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - S D Myers
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - S L Coakley
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
- Faculty of Sport, Allied Health and Performance Sciences, St Mary's University, Twickenham, UK
| | - K M Ashdown
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - B J Lee
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
- Faculty of Health and Life Sciences, Coventry University, Coventry, UK
| | - B J Hale
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - A G Siddall
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - S C Needham-Beck
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - K L Hinde
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - J I Osofa
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
- School of Sport, Health and Exercise Science, University of Portsmouth, Portsmouth, UK
| | - F S Walker
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - A Fieldhouse
- Defence Public Health Unit | HQ Defence Medical Services, Ministry of Defence, London, UK
| | - C A J Vine
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - J Doherty
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - T R Flood
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - E F Walker
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
| | - S Wardle
- Army Personnel Research Capability, British Army Land Forces Headquarters, Andover, UK
- Division of Surgery and Interventional Science, Department of Targeted Intervention, University College London, London, UK
| | - J P Greeves
- Department of Army Health and Physical Performance Research, UK Ministry of Defence, Andover, UK
- Department of Targeted Intervention, University College London Division of Surgery and Interventional Science, London, UK
| | - S D Blacker
- Institute of Sport, Nursing and Allied Health, University of Chichester, Chichester, UK
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Doherty J, Moore RL, Kivlehan C, Byrne DF, Yelverton CA, Twomey PJ, Cullen G, McCauliffe FM. Trends in Faecal Calprotectin Levels During Pregnancy in Non-IBD Patients. Ir Med J 2022; 115:692. [PMID: 36920473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Parthasarathy S, Hyman D, Doherty J, Saad R, Zhang J, Morris S, Eldemir L, Fox B, Vang M, Schroeder J, Marshall N, Parks G. A Real-World Study Assessing the Relationship Between Positive Airway Pressure Treatment, Excessive Daytime Sleepiness, and Patient Satisfaction in Obstructive Sleep Apnoea. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.636] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Kemple O, Bozic D, O'Keane C, Donnelly T, Doherty J, McGlynn J. 65 POLYPHARMACY BURDEN IN THE RAPID-ACCESS FRAILTY ASSESSMENT UNIT (RAFAU). Age Ageing 2022. [DOI: 10.1093/ageing/afac218.051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The adverse outcomes associated with polypharmacy (regular use of five or more medications) are well described. One in three over 65 report polypharmacy in Ireland (The Irish Longitudinal Study on Ageing, 2012). A review of the burden of polypharmacy was carried out in a Rapid Access Frailty Assessment Unit (RAFAU) in a regional Irish hospital.
Methods
Data was collected on each patient presenting to the RAFAU from May 2021 to March 2022. Each patient was categorised based on number of medications taken. It was recorded whether each patient had a change made to their medications during their review. The inclusion criterion was any patient over 65 presenting to the RAFAU with clear documentation of their medications. Excluded were those without medication lists available.
Results
Polypharmacy data was collected in 496 of the total 587 patients attending RAFAU since May 2021. A higher proportion of 59% (n=496) were female. The mean clinical frailty score was four. 100% of the group were reviewed by a doctor.
78.6% of patients were prescribed over five medications. 49.3% of patients were prescribed between 5-10 medications. 22.9% were prescribed 10-15 medications and 6.4% prescribed over 15 medications. 60.8% had a change made to their medication. The incidence of medication changes initiated rose with the increasing number of prescribed medications. 71% of those with more than 15 medications had changes made.
Conclusion
The incidence of polypharmacy in those attending RAFAU is extremely high. The frailty unit is an ideal location to review and reduce medication burden as patients have access to a specialist clinician and multidisciplinary team. Although 60% of our patients had medication changes made, we do not use a standard tool in RAFAU to guide medication reduction in frail patients with polypharmacy. It is planned to introduce routine assessment of polypharmacy utilising the STOPP/START tool and re-audit one year after implementation.
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Affiliation(s)
- O Kemple
- Midland Regional Hospital Tullamore , Tullamore, Ireland
| | - D Bozic
- Midland Regional Hospital Tullamore , Tullamore, Ireland
| | - C O'Keane
- Midland Regional Hospital Tullamore , Tullamore, Ireland
| | - T Donnelly
- Midland Regional Hospital Tullamore , Tullamore, Ireland
| | - J Doherty
- Midland Regional Hospital Tullamore , Tullamore, Ireland
| | - J McGlynn
- Midland Regional Hospital Tullamore , Tullamore, Ireland
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Taha I, Gomme J, Suminska S, Schwende H, Butylin D, Doherty J, Beckmeyer-Borowko A, Farries G. Comparative effectiveness of sacubitril/valsartan versus angiotensin converting enzyme inhibitors/angiotensin receptor blockers in de novo heart failure patients. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.979] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Effective use of pharmacological therapy in de novo heart failure (HF) patients is key for slowing down the progression of HF. Randomised clinical trials have shown sacubitril/valsartan (sac/val), providing superior benefit over renin angiotensin system (RAS) blockade with angiotensin converting enzyme inhibitors (ACEi) in patients with HF with reduced ejection fraction (HFrEF) including de novo HF patients. However, real world evidence is scarce.
Purpose
To compare the rate of all-cause hospitalisations in a real world de novo HFrEF US patient population after initiating sac/val or initiating or continuing RAS blockade with ACEi or angiotensin receptor blockers (ARB) within one year of index date.
Methods
This retrospective, non-interventional cohort study included adult de novo HFrEF patients (left ventricular ejection fraction ≤40%), from the Optum Electronic Health Records, from Jan 2016 to Mar 2020 (study period: Dec 2013–Mar 2021) who were prescribed sac/val or ACEi/ARB within 30 days of a new HF diagnosis. Patients either with any history of HF in the prior two years or with prior sac/val treatment were excluded. Index date was defined as the first prescription of sac/val or ACEi/ARB after a new HF diagnosis (≤30 days prior to index). One-to-two greedy propensity score matching was used to balance the study arms on demographics and clinical covariates (medications, LVEF, selected comorbidities). Negative binomial models were used to compare the primary endpoint between treatment groups and across subgroups of interest. The primary endpoint was the rate of all-cause hospitalisations within one year from index. Treatment groups were stratified by age, sex, race, ethnicity, history of myocardial infarction, comorbidities and prior ACEi/ARB treatment. Statistical analyses were conducted using R and SAS software.
Results
Prior to matching, 3,290 patients were initiated on sac/val, 47,678 on ACEi/ARB and post-matching there were 3,290 patients on sac/val and 6,580 patients on ACEi/ARB. Patients with prior ACEi/ARB treatment in both the groups were 1,597 and 2,806, respectively. Mean age was 63.5 in sac/val and 63.7 years in ACEi/ARB groups. After propensity-score matching, the annual rate (per person-year) of all-cause hospitalisation was lower in sac/val compared with ACEi/ARB group, with incidence rate ratio (IRR) of 0.81 (95% confidence interval [CI]: 0.74–0.90) ≤1 year from index. Similarly, in the ACEi/ARB treatment naïve subgroup, sac/val treatment led to 20% reduction in the primary endpoint (IRR: 0.80, 95% CI: 0.69–0.92) compared with ACEi/ARB. Amongst subgroups, results were consistent for most, with significant reduction seen in all-cause hospitalisation rates with sac/val treatment vs. ACEi/ARB.
Conclusion
Treatment with sac/val vs. ACEi or ARB significantly reduced the risk of all-cause hospitalisations in this real-world study supporting the first-line use of sac/val in treating de novo HFrEF patients.
Funding Acknowledgement
Type of funding sources: Private company. Main funding source(s): Novartis Pharma AG
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Affiliation(s)
- I Taha
- Novartis Pharma AG , Basel , Switzerland
| | - J Gomme
- Novartis Global Service Center , Dublin , Ireland
| | - S Suminska
- Novartis Global Service Center , Dublin , Ireland
| | - H Schwende
- Novartis Pharma AG , Basel , Switzerland
| | - D Butylin
- Novartis Pharma AG , Basel , Switzerland
| | - J Doherty
- Novartis Pharma AG , Basel , Switzerland
| | | | - G Farries
- Novartis Global Service Center , Dublin , Ireland
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Doherty J, Nambi Rajan T. 822 The Use of Prophylactic Antibiotics Pre-Orchidectomy – a Retrospective Cohort Study. Br J Surg 2022. [DOI: 10.1093/bjs/znac269.514] [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: 11/05/2022]
Abstract
Abstract
Aim
NICE guidance recommends the use of antibiotic prophylaxis in clean-contaminated procedures and when a prosthetic is placed. However, the use in orchidectomies is not specified under the treatment summary heading of ‘Urological Procedures, Antibacterial Prophylaxis’. The use of prophylactic antibiotics pre-orchidectomy varied amongst senior urologists within a District General Hospital, where no specific protocol was in use. This retrospective cohort study aimed to decipher if the use of prophylactic antibiotics reduced post-operative infection incidence following radical orchidectomies.
Method
50 consecutive orchidectomies, performed between February 2019 and July 2021, were analysed. It was identified whether the patient had antibiotics administered pre-operatively and if they developed a subsequent wound infection through post-operative ward rounds, clinic letters and presentations to the Emergency Department. Orchidectomies performed by general surgeons were excluded from analysis.
Results
Of the 50 orchidectomies analysed, 30 patients received pre-operative antibiotics, four of whom subsequently developed a post-operative infection. Of the 20 patients that did not receive prophylactic antibiotics, nine developed a post-operative infection. The relative risk was calculated at 0.2963 with a 70.4% relative risk reduction if prophylactic antibiotics were administered. Chi squared tests calculated a p-value of 0.012 highlighting statistical significance. Eight patients had primary prosthesis placed at the time of orchidectomy, all of whom received prophylactic antibiotics.
Conclusion
Prophylactic antibiotics were effective in preventing post-orchiectomy wound infections and routine local protocols should advise the use in orchidectomies, which classify as clean-contaminated procedures as per NICE guidance.
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Affiliation(s)
- J Doherty
- Wirral University Teaching Hospital , Wirral , United Kingdom
| | - T Nambi Rajan
- Wirral University Teaching Hospital , Wirral , United Kingdom
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O'Moráin N, Stack R, Doherty J, Tosetto M, Garcia Leon A, Mallon P, Doherty G. Faecal calprotectin as a potential biomarker of disease severity in SARS-CoV-2 infection. J Infect 2022; 85:436-480. [PMID: 35768051 PMCID: PMC9233623 DOI: 10.1016/j.jinf.2022.06.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 06/16/2022] [Accepted: 06/17/2022] [Indexed: 11/05/2022]
Affiliation(s)
- N O'Moráin
- Centre for Colorectal Disease, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; School of Medicine, University College Dublin, Dublin, 4, Ireland.
| | - R Stack
- Centre for Colorectal Disease, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; School of Medicine, University College Dublin, Dublin, 4, Ireland
| | - J Doherty
- Centre for Colorectal Disease, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; School of Medicine, University College Dublin, Dublin, 4, Ireland
| | - M Tosetto
- Centre for Colorectal Disease, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - A Garcia Leon
- Centre for Experimental Pathogen Host Research, University College Dublin, Dublin, 4, Ireland
| | - P Mallon
- Centre for Experimental Pathogen Host Research, University College Dublin, Dublin, 4, Ireland; Department of Infectious Disease, St. Vincent's University Hospital, Dublin, 4, Ireland
| | - G Doherty
- Centre for Colorectal Disease, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland; School of Medicine, University College Dublin, Dublin, 4, Ireland
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Clayton A, Cutler A, Deligiannidis K, Lasser R, Sankoh A, Doherty J, Kotecha M. Clinical Efficacy of a 2-Week Treatment Course of Zuranolone for the Treatment of Major Depressive Disorder and Postpartum Depression: Outcomes From the Clinical Development Program. Eur Psychiatry 2022. [PMCID: PMC9567193 DOI: 10.1192/j.eurpsy.2022.282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Introduction Antidepressants that offer a rapid onset of action without requiring chronic use are greatly needed in both major depressive disorder (MDD) and postpartum depression (PPD). Zuranolone is an investigational, oral, neuroactive steroid and GABAA receptor positive allosteric modulator in clinical development as a 2-week treatment course for MDD and PPD. Objectives To present the efficacy and safety of zuranolone vs placebo in Phase 2 and 3 trials. Methods In the studies presented (Table 1), improvements in depressive symptoms were assessed by least-squares mean (LSM) using a mixed-effects model for repeated measures on the change from baseline (CFB) at Day 15 in the 17-item Hamilton Rating Scale for Depression total score (HAMD-17; primary endpoint for all trials) and the Montgomery–Åsberg Depression Rating Scale (MADRS; secondary endpoint) following a 14-day treatment course of once-daily zuranolone. ![]()
Results Compared with placebo, zuranolone treatment led to rapid improvements in depressive symptoms across clinical trials, with significant improvements (LSM treatment difference [SE] in CFB) in HAMD-17 and MADRS scores at Day 15 in 3 of the 4 trials (Table 2). Common treatment-emergent adverse events (≥5% in zuranolone treatment arms) were headache, somnolence, dizziness, nausea, sedation, diarrhea, upper respiratory tract infection, and fatigue (Table 3). No incidences of loss of consciousness or excessive sedation were observed. ![]()
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Conclusions Across the completed studies in the zuranolone clinical trial program, patients receiving zuranolone consistently experienced improvement in depressive symptoms following a 2-week treatment course. Treatment with zuranolone was generally well tolerated with a consistent safety and tolerability profile. Disclosure The MDD-201B, MOUNTAIN, and ROBIN studies were sponsored by Sage Therapeutics, Inc; the WATERFALL study was sponsored by Sage Therapeutics, Inc, and Biogen. Medical writing and editorial support were provided by MediTech Media, Ltd, and funded by Biogen.
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11
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Simpson EEA, Davison J, Doherty J, Dunwoody L, McDowell C, McLaughlin M, Butter S, Giles M. Employing the theory of planned behaviour to design an e-cigarette education resource for use in secondary schools. BMC Public Health 2022; 22:276. [PMID: 35144592 PMCID: PMC8832682 DOI: 10.1186/s12889-022-12674-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 01/25/2022] [Indexed: 12/01/2022] Open
Abstract
Background An extended version of the theory of planned behaviour (TPB) was used to inform the design of a framework for an educational resource around e-cigarette use in young people. Methods A sequential exploratory design was employed. In Phase 1, elicited behavioural, normative and control beliefs, via 7 focus groups with 51 participants, aged 11–16 years, identified salient beliefs around e-cigarette use. These were used to construct a questionnaire administered to 1511 young people aged 11–16 years, which determined predictors of e-cigarette use and ever use. In Phase 2, sociodemographic variables, e-cigarette knowledge, access, use, marketing and purchasing of e-cigarettes and smoking behaviour were also gathered. The composite findings from Phase 1 and 2 informed the design of a post primary educational resource in Phase 3 around e-cigarette use. Results Current e-cigarette use was 4%, with almost 23% reporting ever use, suggesting current use is stable but experimentation may be increasing in this cohort. Sociodemographic variables, knowledge of e-cigarettes, smoking behaviour and TPB variables (direct and indirect measures of attitudes, subjective norm, and perceived behavioural control) accounted for 17% of the variance in current e-cigarette use, with higher intentions to use e-cigarettes within the next month, having the strongest impact on use (p < 0.001), followed by self-efficacy (p = 0.016). Sociodemographic and TPB variables accounted for 65% of the variance in intentions to use e-cigarettes in the next month; current e-cigarette use (p < 0.001), more positive attitudes (p < 0.001), stronger social influence (p < 0.001), higher self-efficacy (p < 0.001), higher control beliefs (p < 0.001) and greater motivation to use e-cigarettes (p < 0.001) were the main predictors of intentions. Phases 1 and 2 informed the mapping of key predictors of intentions and use of e-cigarettes onto the Theoretical Domains Framework, which identified appropriate intervention functions and behaviour change techniques. Conclusions This paper is the first to bridge the theoretical-practice gap in an area of significant public health importance through the development of a framework for a novel theory driven school-based educational resource aimed at reducing experimentation and uptake of e-cigarette use in young people. Supplementary Information The online version contains supplementary material available at 10.1186/s12889-022-12674-3.
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Affiliation(s)
- E E A Simpson
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK.
| | - J Davison
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - J Doherty
- School of Nursing and Midwifery, Queens University of Belfast, Belfast, UK
| | - L Dunwoody
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - C McDowell
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - M McLaughlin
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - S Butter
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
| | - M Giles
- School of Psychology, Ulster University, Coleraine, Northern Ireland, UK
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12
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Doherty J, Larvie D, Shivappa N, Hebert J, Armah S. Associations among Diet, Inflammation and Iron Status in Young Adults. J Acad Nutr Diet 2019. [DOI: 10.1016/j.jand.2019.08.033] [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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Batista de Carvalho ALM, Pilling M, Gardner P, Doherty J, Cinque G, Wehbe K, Kelley C, Batista de Carvalho LAE, Marques MPM. Chemotherapeutic response to cisplatin-like drugs in human breast cancer cells probed by vibrational microspectroscopy. Faraday Discuss 2018; 187:273-98. [PMID: 27063935 DOI: 10.1039/c5fd00148j] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Studies of drug-cell interactions in cancer model systems are essential in the preclinical stage of rational drug design, which relies on a thorough understanding of the mechanisms underlying cytotoxic activity and biological effects, at a molecular level. This study aimed at applying complementary vibrational spectroscopy methods to evaluate the cellular impact of two Pt(ii) and Pd(ii) dinuclear chelates with spermine (Pt2Spm and Pd2Spm), using cisplatin (cis-Pt(NH3)2Cl2) as a reference compound. Their effects on cellular metabolism were monitored in a human triple-negative metastatic breast cancer cell line (MDA-MB-231) by Raman and synchrotron-radiation infrared microspectroscopies, for different drug concentrations (2-8 μM) at 48 h exposure. Multivariate data analysis was applied (unsupervised PCA), unveiling drug- and concentration-dependent effects: apart from discrimination between control and drug-treated cells, a clear separation was obtained for the different agents studied - mononuclear vs. polynuclear, and Pt(ii) vs. Pd(ii). Spectral biomarkers of drug action were identified, as well as the cellular response to the chemotherapeutic insult. The main effect of the tested compounds was found to be on DNA, lipids and proteins, the Pd(ii) agent having a more significant impact on proteins while its Pt(ii) homologue affected the cellular lipid content at lower concentrations, which suggests the occurrence of distinct and unconventional pathways of cytotoxicity for these dinuclear polyamine complexes. Raman and FTIR microspectroscopies were confirmed as powerful non-invasive techniques to obtain unique spectral signatures of the biochemical impact and physiological reaction of cells to anticancer agents.
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Affiliation(s)
| | - M Pilling
- Manchester Institute of Biotechnology, Univ. Manchester, Manchester, M1 7DN, UK
| | - P Gardner
- Manchester Institute of Biotechnology, Univ. Manchester, Manchester, M1 7DN, UK
| | - J Doherty
- Manchester Institute of Biotechnology, Univ. Manchester, Manchester, M1 7DN, UK and Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - G Cinque
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - K Wehbe
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | - C Kelley
- Diamond Light Source, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0DE, UK
| | | | - M P M Marques
- "Química-Física Molecular", Univ. Coimbra, 3004-535 Coimbra, Portugal. and Dep. Life Sciences, Univ. Coimbra, 3000-456 Coimbra, Portugal
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Briggs R, Coughlan T, Doherty J, Collins DR, O'Neill D, Kennelly SP. Investigation and diagnostic formulation in patients admitted with transient loss of consciousness. Ir Med J 2017; 110:563. [PMID: 28737304] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Several commonly completed tests have low diagnostic yield in the setting of transient loss of consciousness (T-LOC). We estimated the use and cost of inappropriate investigations in patients admitted with T-LOC and assessed if these patients were given a definitive diagnosis for their presentation. We identified 80 consecutive patients admitted with T-LOC to a university teaching hospital. Eighty-eight percent (70/80) had a computerized topography (CT) brain scan and 49% (34/70) of these scans were inappropriate based on standard guidelines. Almost half (17/80) of electroencephalograms (EEG) and 82% (9/11) of carotid doppler ultrasound performed were not based on clinical evidence of seizure or stroke respectively. Forty-four percent (35/80) of patients had no formal diagnosis documented for their presentation. Inappropriate investigation in T-LOC is very prevalent in the acute hospital, increasing cost of patient care. In addition, there is poor diagnostic formulation for T-LOC making recurrent events more likely in the absence of definitive diagnoses.
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Affiliation(s)
- R Briggs
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
| | - T Coughlan
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
| | - J Doherty
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
| | - D R Collins
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
| | - D O'Neill
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
| | - S P Kennelly
- Centre for Ageing, Neuroscience and the Humanities, Trinity Centre for Health Sciences, Tallaght Hospital, Dublin, Ireland
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Shih AW, Jamula E, Diep C, Lin Y, Armali C, Heddle NM, Traore A, Doherty J, Shah N, Hillis CM. Audit of provincial IVIG Request Forms and efficacy documentation in four Ontario tertiary care centres. Transfus Med 2017; 27:122-131. [PMID: 28144996 DOI: 10.1111/tme.12391] [Citation(s) in RCA: 7] [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: 10/26/2016] [Revised: 12/29/2016] [Accepted: 12/30/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Retrospective audit of IVIG Request Forms in four Ontario tertiary care centres: to determine the case mix of new IVIG requests, to authenticate information provided, and to determine documentation of clinical efficacy. AIMS To understand contributors to increases in IVIG utilisation and to determine whether IVIG is being used and monitored appropriately. INTRODUCTION Intravenous immunoglobulin (IVIG) use in Canada is high compared with other developed countries. We performed a retrospective audit of new IVIG Request Forms across four tertiary care centres in Ontario, one with an active surveillance programme, to determine the case mix, authenticate information provided and assess documentation of efficacy. METHODS Consecutive adult patients with a first-time IVIG request in 2014 were included. The ordering physician specialty, form completeness, documentation of diagnostic criteria for the medical condition and indication for IVIG use and documentation of efficacy were assessed by form and chart review. RESULTS Of 178 patients, the most common indications for IVIG were immune thrombocytopenia (24.2%) and secondary immune deficiency (20.2%). The most frequent prescribers were haematologists (37.6%) and neurologists (10.7%). Other conditions not listed on the form represented 24.2% of cases, with most not indicated in current guidelines. A total of 32.6% of cases overall lacked verification of diagnostic criteria and 51.7% lacked verification for IVIG utilisation criteria, with the number of cases meeting criteria based on documentation being higher at the active surveillance site (P = 0.005). A total of 19.1% of cases had a discrepancy between the indication written on the form and the documented clinical diagnosis. A total of 18.7% of clinic notes following IVIG had no mention of efficacy. CONCLUSION Our audit demonstrates a lack of compliance with IVIG Request Form requirements, a lack of documentation of diagnostic criteria and efficacy, and suggests inappropriate use of IVIG. Current implementation of the form may not be sufficient as a strategy for improving appropriate IVIG use.
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Affiliation(s)
- A W Shih
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - E Jamula
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - C Diep
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - Y Lin
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - C Armali
- Department of Clinical Pathology, Sunnybrook Health Sciences Centre and Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - N M Heddle
- Department of Medicine, McMaster University, Hamilton, Ontario, Canada.,McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada.,Centre for Innovation, Canadian Blood Services, Ottawa, Ontario, Canada
| | - A Traore
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - J Doherty
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - N Shah
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada
| | - C M Hillis
- McMaster Centre for Transfusion Research, McMaster University, Hamilton, Ontario, Canada.,Department of Oncology, McMaster University, Hamilton, Ontario, Canada
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Briggs R, Dyer A, Nabeel S, Collins R, Doherty J, Coughlan T, O'Neill D, Kennelly SP. Dementia in the acute hospital: the prevalence and clinical outcomes of acutely unwell patients with dementia. QJM 2017; 110:33-37. [PMID: 27486262 DOI: 10.1093/qjmed/hcw114] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Revised: 06/21/2016] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Studies have demonstrated that a significant minority of older persons presenting to acute hospital services are cognitively impaired; however, the impact of dementia on long-term outcomes is less clear. AIM To evaluate the prevalence of dementia, both formally diagnosed and hitherto unrecognised in a cohort of acutely unwell older adults, as well as its impact on both immediate outcomes (length of stay and in-hospital mortality) and 12-month outcomes including readmission, institutionalisation and death. DESIGN Prospective observational study. METHODS 190 patients aged 70 years and over, presenting to acute hospital services underwent a detailed health assessment including cognitive assessment (standardised Mini Mental State Examination, AD8 and Confusion Assessment Method for the Intensive Care Unit). Patients or informants were contacted directly 12 months later to compile 1-year outcome data. Dementia was defined as a score of 2 or more on the AD8 screening test. RESULTS Dementia was present in over one-third of patients (73/190). Of these patients, 36% (26/73) had a prior documented diagnosis of dementia with the remaining undiagnosed before presentation. The composite outcome of death or readmission to hospital within the following 12 months was more likely to occur in patients with dementia (73% (53/73) vs. 58% (68/117), P = 0.043). This finding persisted after controlling for age, gender, frailty status and medical comorbidities, including stroke and heart disease. CONCLUSION A diagnosis of dementia confers an increased risk of either death or further admission within the following 12 months, highlighting the need for better cognitive screening in the acute setting, as well as targeted intervention such as comprehensive geriatric assessment.
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Affiliation(s)
- R Briggs
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
| | - A Dyer
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - S Nabeel
- School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - R Collins
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
| | - J Doherty
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
| | - T Coughlan
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
| | - D O'Neill
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
| | - S P Kennelly
- From the Department of Age-Related Health Care, Tallaght, Hospital, Dublin, Ireland
- Department of Medical Gerontology, Trinity College Dublin, Dublin, Ireland
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McHale C, Briggs R, Fitzhenry D, O'Neill D, Coughlan T, Collins R, Doherty J, Connolly A, Austin N, Freeman J, Tobin F, Duignan E, Mooney C, Lawson S. 271DRIVING PREVALENCE AMONGST PEOPLE ATTENDING A MULTIDISCIPLINARY MEMORY ASSESSMENT SERVICE. Age Ageing 2016. [DOI: 10.1093/ageing/afw159.234] [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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MacDonald V, Doherty J, Morris S. CARDIOGENIC SHOCK IN A FORTY YEAR OLD FEMALE: COULD VASCULAR GENETICS PLAY A ROLE? Can J Cardiol 2015. [DOI: 10.1016/j.cjca.2015.07.686] [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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Doherty J, Ahmed I. Epigastric pain…it's not always alcohol! An unusual presentation of caecal intussusception. BMJ Case Rep 2014; 2014:bcr-2014-204183. [PMID: 24951598 DOI: 10.1136/bcr-2014-204183] [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: 11/04/2022] Open
Abstract
Our patient is a 19-year-old man who presented to the emergency department after consuming 50-60 units of alcohol over a weekend. He presented with a 2-day history of right-upper quadrant (RUQ) and epigastric pain radiating to the back. On examination he was haemodynamically stable. His abdomen was soft with minimal tenderness in the RUQ, epigastric and right-iliac fossa areas. Laboratory results showed a slightly raised erythrocyte sedimentation rate. Amylase and white cell count were normal. Ultrasound was performed raising the suspicion of intussusception. A CT scan was recommended and confirmed the presence of an intussusception. Once diagnosis was established, the patient had an emergency laparotomy and right hemicoloectomy, with per-operative findings consistent with the CT findings. This case illustrates the importance of keeping an open approach to all differentials while considering a diagnosis along with the importance of recognising intussusception when it occurs as complications can each represent a cause of mortality on their own.
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Affiliation(s)
- J Doherty
- Department of Surgery, Sligo Regional Hospital, Sligo, Ireland
| | - I Ahmed
- Department of Surgery, Sligo Regional Hospital, Sligo, Ireland
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McGowan B, Bennett K, Casey MC, Doherty J, Silke C, Whelan B. Comparison of prescribing and adherence patterns of anti-osteoporotic medications post-admission for fragility type fracture in an urban teaching hospital and a rural teaching hospital in Ireland between 2005 and 2008. Ir J Med Sci 2013; 182:601-8. [PMID: 23483361 DOI: 10.1007/s11845-013-0935-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Accepted: 02/28/2013] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Poor adherence reduces the potential benefits of osteoporosis therapy, lowering gains in bone mineral density resulting in increased risk of fractures. AIM To compare prescribing and adherence patterns of anti-osteoporotic medications in patients admitted to an urban teaching hospital in Ireland with a fragility type fracture to patients admitted to a rural hospital in the North Western region. METHODOLOGY We identified all patients >55 years admitted to Sligo General Hospital between 2005 and 2008 with a fragility fracture (N = 744) using the hospital in-patient enquiry system (HIPE). The medical card number of those patients eligible for the primary care reimbursement services scheme (PCRS) facilitated the linkage of the HSE-PCRS scheme database to the HIPE database which enabled a study to identify persistence rates of patients prescribed osteoporosis therapy after discharge. The results were compared to the findings of a similar study carried out in St. James's Hospital, Dublin. RESULTS The 12 months post-fracture prescribing increased from 11.0 % (95 % CI 9.6, 12.4) in 2005 to 47 % (95 % CI 43.6, 50.3) in 2008 in the urban setting and from 25 % (95 % CI 21.5, 28.9) to 39 % (95 % CI 34.5, 42.7) in the rural setting. Adherence levels to osteoporosis medications at 12 months post-initiation of therapy was <50 % in both study groups. Patients on less frequent dosing regimes were better adherers. CONCLUSION The proportion of patients being discharged on anti-osteoporosis medications post-fragility fracture increased between 2005 and 2008 in both patient groups. Sub-optimal adherence levels to osteoporosis medications continue to be a major concern.
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Affiliation(s)
- B McGowan
- The North Western Rheumatology Unit, Our Lady's Hospital, Manorhamilton, Co Leitrim, Ireland,
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Gross E, Clark T, Doherty J, Freeman W, Hansoti B, Ramoska E, Weaver K, Takayesu K. 357 Presence of Burnout Among Emergency Medicine Residents. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Street I, Holmes I, Devlin M, Bergman Y, Doherty J, Natoli A, Falk H, Nikac M, Choi N, Walker S. 846 Inhibition of Focal Adhesion Kinase in Combination With Bevacizumab Reduces the Rate of Tumor Revascularization and Increases Survival in a Pre-clinical Model of Basal Breast Cancer. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)71479-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Street I, de Sylva M, Lackovic K, Ganame D, Holloway G, Anderson R, McArthur G, Natoli A, Doherty J, Falk H, Kersten W, Lessene R, Leuchowius K, Novello P, Yang H, Bergman Y, Camerino M, Charman S, Gregg A, Choi N, Foitzik R, Hemley C, Lunniss G, Nikac M, Walker S, Lovrecz G, Monahan B, Peat T, Robinson C, Scott C, Gorman M, Parker M, Holmes I, Devlin M. Abstract LB-308: Combination of CTx-0294945 a highly selective inhibitor of focal adhesion kinase with bevacizumab in pre-clinical models of breast cancer. Cancer Res 2012. [DOI: 10.1158/1538-7445.am2012-lb-308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background: Focal adhesion kinase (FAK) is a non-receptor tyrosine kinase that provides a critical hub for signalling from at least four different classes of cellular sensing mechanisms including growth factor receptors, GPCRs, integrins and mechanical stress forces. By temporal and spatial integration of signals from these sources, FAK plays a central role in cell migration, invasion and proliferation; processes vital for tumorigenesis. The significance of FAK to the function of signal transduction pathways provides a strong rationale for the combination of FAK inhibitors with other targeted agents to achieve improved efficacy against a range of cancers. Others have demonstrated the importance of FAK in angiogenesis and therefore combining a FAKi with anti-VEGF agents is attractive as it employs two complementary mechanisms of suppressing the formation of tumor vasculature. Here we present results from the co-administration of CTx-0294945, a highly selective FAKi, and bevacizumab (bev) in an orthotopic model of human breast cancer. Methods and Results: CTx-0294945 is an orally bioavailable small molecule ATP competitive inhibitor of focal adhesion kinase (FAK KD=0.21 nM). It exhibits high selectivity against a diverse panel of 125 kinases including the closely related Pyk2. CTx-0294945 inhibits autophosphorylation of 397Y-FAK in MDA-MB-231 cells with an IC50 = 7 nM and exhibits low general cellular toxicity (IC50 = 2.7 µM, MDA-MB-231 cells). CTx-0294945 is suitable for oral administration (%F=58 and t1/2=5.1 h at 20 mg/Kg in rat) and does not inhibit (IC50 >20 µM) any of the cytochrome p450 isoforms tested to date. To assess the co-administration of CTx-0294945 with bev, mice were injected orthotopically with MDA-MB-231 cells (106). After 14 days, when tumors were palpable, mice were randomized into 4 groups and dosing commenced. The groups were treated with CTx-0294945 (80 mg/kg QD, PO), bev (12.5 mg/Kg IP, x2/week), CTx-0294945 (80 mg/Kg QD, PO) and bev (12.5 mg/Kg IP, x2/week) or vehicle. Tumor growth was monitored and on day 28 animals in the vehicle and CTx-0294945 arms were culled when the size of the tumors reached ethical end point (1000 mm3). Tumor growth in the bev only and the CTx-0294945 + bev arms was significantly inhibited (75% and 88% TGI respectively). At this time the treatment regimes for both cohorts were stopped and tumor growth allowed to progress. After an additional 14 days the experiment was terminated when the bev treatment group reached ethical end point; however the average size of the tumors in the CTx-0294945 + bev cohort was still was only 562 mm3. Conclusions: Our data suggest the potential utility of combining a selective FAK inhibitor with bevacizumab to prevent tumour progression and enhance the durability of response.
Citation Format: {Authors}. {Abstract title} [abstract]. In: Proceedings of the 103rd Annual Meeting of the American Association for Cancer Research; 2012 Mar 31-Apr 4; Chicago, IL. Philadelphia (PA): AACR; Cancer Res 2012;72(8 Suppl):Abstract nr LB-308. doi:1538-7445.AM2012-LB-308
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Affiliation(s)
- I. Street
- 1Cancer Therapeutics CRC, Bundoora, Australia
| | - M de Sylva
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - K. Lackovic
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - D. Ganame
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - G. Holloway
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - R. Anderson
- 3Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - G McArthur
- 3Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - A Natoli
- 3Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - J Doherty
- 3Peter MacCallum Cancer Centre, East Melbourne, Australia
| | - H Falk
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - W Kersten
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - R Lessene
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - K Leuchowius
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - P Novello
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - H Yang
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - Y Bergman
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - M Camerino
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - S Charman
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - A Gregg
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - N Choi
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - R Foitzik
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - C Hemley
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - G Lunniss
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - M Nikac
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - S Walker
- 4Monash Institute of Pharmaceutical Sciences, Parkville, Australia
| | - G Lovrecz
- 5CSIRO Materials Science and Engineering, Parkville, Australia
| | - B Monahan
- 5CSIRO Materials Science and Engineering, Parkville, Australia
| | - T Peat
- 5CSIRO Materials Science and Engineering, Parkville, Australia
| | - C Robinson
- 5CSIRO Materials Science and Engineering, Parkville, Australia
| | - C Scott
- 2The Walter and Eliza Hall Institute of Medical Research, Bundoora, Australia
| | - M Gorman
- 6St Vincent's Institute, Fitzroy, Australia
| | - M Parker
- 6St Vincent's Institute, Fitzroy, Australia
| | - I Holmes
- 1Cancer Therapeutics CRC, Bundoora, Australia
| | - M Devlin
- 3Peter MacCallum Cancer Centre, East Melbourne, Australia
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Doherty J, Lowe H. Development and Initial Evaluation of Intracoronary 3D-Optical Coherence Tomography. Heart Lung Circ 2012. [DOI: 10.1016/j.hlc.2012.05.379] [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: 10/28/2022]
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Najavits L, Welsh T, Miller N, Hamilton N, Doherty J, Vargo M, Schmitz M. P-85 - A public health innovation: results from the first peer-led study of seeking safety for trauma and substance abuse. Eur Psychiatry 2012. [DOI: 10.1016/s0924-9338(12)74252-9] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Hussain I, Jan A, Doherty J, Hickey P. Severe symptomatic hyponatremia. Ir Med J 2011; 104:285-286. [PMID: 22132604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
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Dibben C, Atherton I, Doherty J, Baldacchino A. Differences in 5-year survival after a 'homeless' or 'housed' drugs-related hospital admission: a study of 15--30-year olds in Scotland. J Epidemiol Community Health 2010; 65:780-5. [PMID: 20693494 DOI: 10.1136/jech.2009.101352] [Citation(s) in RCA: 8] [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: 11/04/2022]
Abstract
BACKGROUND Young drug misusers and the homeless both have a greater risk of death than their peers. This study sought to estimate the additional impact of homelessness on the risk of death for young drugs misusers. METHODS From all admissions to NHS hospitals in Scotland between 1986 and 2001, those that were: drug misuse related, for people born between 1970 and 1986 and aged over 15 years (n=13 303), were selected. All subsequent admissions and registrations of death were linked to this dataset. Each admission was coded as homeless if the health board of residence was coded as 'no fixed abode'. 5-year survival after an admission was modelled using (1) life table and (2) proportional hazard models and then (3) differences in causes of deaths were explored. RESULTS Immediately after a drugs-related hospital admission there was no difference in survival between the homeless and those with a 'fixed address'. However, over a 3-year period the risk for those who were homeless was 3.5 times greater (CI 95% 1.2 to 12.8). This elevated risk seemed to be particularly focused on the second year after an admission. The causes of death were similar for the two groups. CONCLUSION Although a homeless hospital admission is associated with a greater risk of death for young drug users, it is also a point in time when a young person is in contact with public services. An attempt to link their discharge with housing services would seem a potentially productive policy.
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Affiliation(s)
- C Dibben
- School of Geography and Geosciences, University of St Andrews, St Andrews KY16 9AL, UK.
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Doherty J. Textbook response (1968). West J Med 2008. [DOI: 10.1136/bmj.a2929] [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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Mukaetova-Ladinska EB, Milne J, Andras A, Abdel-All Z, Cerejeira J, Greally E, Robson J, Jaros E, Perry R, McKeith IG, Brayne C, Xuereb J, Cleghorn A, Doherty J, McIntosh G, Milton I. Alpha- and gamma-synuclein proteins are present in cerebrospinal fluid and are increased in aged subjects with neurodegenerative and vascular changes. Dement Geriatr Cogn Disord 2008; 26:32-42. [PMID: 18577885 DOI: 10.1159/000141039] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/27/2008] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Disease-specific biomarkers should reflect a fundamental feature of neuropathology and be validated in neuropathologically confirmed cases. Several synaptic proteins have been described in cerebrospinal fluid (CSF) of patients with dementia. In Lewy body disease alpha-synuclein is incorporated within Lewy bodies and alpha-, beta- and gamma-synucleins in dystrophic neuritis. These pathological changes are expected to be seen in CSF. METHODS A total of 25 CSF post-mortem samples (8 control and 17 subjects with dementia) were used to quantify alpha- and gamma-synucleins and IgG. RESULTS We describe for the first time the presence of gamma-synuclein in CSF. There is an elevation of both alpha- and gamma-synucleins in CSF from elderly individuals with Alzheimer's disease, Lewy body disease (LBD) and vascular dementia (CVD), compared to normal controls. gamma-Synuclein showed a greater elevation in LBD, IgG in CVD. The elevation of alpha- and gamma-synucleins was seen from Braak stage III onwards and remained stable until Braak stage VI. These results were not influenced by age at death or post-mortem delay. CONCLUSIONS The reported increases in alpha- and gamma-synucleins and IgG in the ventricular CSF of individuals with dementia are novel findings. They now need to be explored further using a greater number of cases in each subgroup, using lumbar CSF samples to determine their applicability and relevance to a clinical diagnostic setting. It needs to be established whether using these markers may help to discriminate LBD from other types of neurodegenerative and vascular dementias.
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Watts H, Doherty J, Kulstad E. 34: Evaluation of the Revised Trauma and Injury Severity Scores in Elderly Trauma Patients. Ann Emerg Med 2008. [DOI: 10.1016/j.annemergmed.2008.06.099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bell ME, Lee C, Doherty J. CHARACTERIZATION OF COMPOUND SEIZURE LIABILITY IN MICE. J Pharmacol Toxicol Methods 2007. [DOI: 10.1016/j.vascn.2007.02.037] [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: 11/24/2022]
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Abstract
Clozapine is an atypical antipsychotic agent with a novel pharmacological profile and multiple clinical properties. Because of its side effects, it is recommended in treatment of severe resistant schizophrenia for which purpose it is remarkably effective. Little is known about the safety profile of clozapine during pregnancy and labour and because it is now used more commonly to manage schizophrenia, it is important that we as anaesthetists are aware of its many interactions and potential side effects. We present a case of a successful emergency caesarean section in a schizophrenic patient on clozapine treatment.
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Affiliation(s)
- J Doherty
- Department of Anaesthetics, Royal Victoria Hospital, Musgrave Park Hospital, Belfast, Northern Ireland.
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Elshibly S, Doherty J, Xu J, McClurg RB, Rooney PJ, Millar BC, Shah H, Morris TCM, Alexander HD, Moore JE. Central line-related bacteraemia due to Tsukamurella tyrosinosolvens in a haematology patient. Ulster Med J 2005; 74:43-6. [PMID: 16022132 PMCID: PMC2475478] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Affiliation(s)
- S Salzman
- Advocate Christ Medical Center, Division of Trauma, Oak Lawn, Illinois 60453, USA
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Grenier D, Doherty J, Macdonald D, Scott J, Delage G, Medaglia A, Davis M. Canadian Paediatric Surveillance Program evaluation: An excellent report card. Paediatr Child Health 2004; 9:379-84. [PMID: 19657428 PMCID: PMC2721163 DOI: 10.1093/pch/9.6.379] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- D Grenier
- Canadian Paediatric Society, Ottawa, Ontario
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Grenier D, Medaglia A, Doherty J. 90 Evaluation of the Canadian Paediatric Surveillance Program – Initial Survey Feedback. Paediatr Child Health 2004. [DOI: 10.1093/pch/9.suppl_a.46ab] [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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Grenier D, Doherty J, Medaglia A. 98 Public Health Impact of the Canadian Paediatric Surveillance Program (CPSP). Paediatr Child Health 2004. [DOI: 10.1093/pch/9.suppl_a.48ab] [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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Albert US, Schulz KD, Alt D, Beck V, Doherty J, Holsteg K, Kalbheim E, Müller J, Nass-Griegoleit I, Nill J, Nioduschewski G, Schulte H, von Wietersheim A, Kopp I. [A guideline for guidelines--methodological report and use of the guideline women's information]. ACTA ACUST UNITED AC 2004; 125:484-93. [PMID: 14755359 DOI: 10.1055/s-2003-44816] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
UNLABELLED Information and education is needed to empower autonomy and self-determination of patients (informed consent). Furthermore reliable and accurate medical information is necessary for patients who want to take an active part in medical decision-making. The aim of this work is to define the requirements helping to assure the development of good qualified information material relevant for women and female patients as "a guideline on women information". An example of its use is given by embeding this guideline in the guideline for early detection of breast cancer in Germany by defining the specific elements required for developing qualified information on this issue for women. METHODS A systematic, stepwise methodological process according to a level two guideline of the German Association of the Scientific Medical Societies (AWMF) and the Agency for Quality in Medicine (AZQ) was performed with the following elements: 1. Establishing an expert panel, 2. Generating the guideline statements by a formal, consensus based nominal group process, 3. External review process and finding supportive partners for the guideline on women information, 4. Using the guideline for guidelines: implementing the concept in the guideline of early detection of breast cancer in Germany. RESULTS The "guideline women information" comprises nine elements of quality assuring requirements for the development of gender-specific information material and eleven specific elements which directly relate to the guideline statements on early detection of breast cancer. After external review 30 organisations gave their written support for future implementation of the guideline. The "guideline women information" was integrated as a tool for quality assurance of lay information into the "guideline for early detection of breast cancer in Germany". CONCLUSION The "guideline women information" is a systematically developed, consensus-based recommendation to improve the development of qualified lay information at the point of its process by defining gender-specific aspects required for good lay information and its evaluation. As a guideline for guidelines its use is demonstrated by integrating this guideline into the "guideline for early detection of breast cancer in Germany" to ensure the development of qualified guideline compliant information.
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Affiliation(s)
- U-S Albert
- Klinik für Gynäkologie, Gynäkologische Endokrinologie und Onkologie, Philipps-Universität Marburg.
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Doherty J, Grenier D, Medaglia A. Public Health Implications of the Canadian Paediatric Surveillance Program (Cpsp). Paediatr Child Health 2003. [DOI: 10.1093/pch/8.suppl_b.23ba] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Liss GM, Tarlo SM, Doherty J, Purdham J, Greene J, McCaskell L, Kerr M. Physician diagnosed asthma, respiratory symptoms, and associations with workplace tasks among radiographers in Ontario, Canada. Occup Environ Med 2003; 60:254-61. [PMID: 12660373 PMCID: PMC1740502 DOI: 10.1136/oem.60.4.254] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Medical radiation technologists (MRTs) or radiographers have potential exposure to chemicals including sensitisers and irritants such as glutaraldehyde, formaldehyde, sulphur dioxide, and acetic acid. AIMS To determine the prevalence of asthma and work related respiratory symptoms among MRTs compared with physiotherapists, and to identify work related factors in the darkroom environment that are associated with these outcomes. METHODS As part of a two component study, we undertook a questionnaire mail survey of the members of the professional associations of MRTs and physiotherapists in Ontario, Canada, to ascertain the prevalence of physician diagnosed asthma, and the prevalence in the past 12 months of three or more of the nine respiratory symptoms (previously validated by Venables et al to be sensitive and specific for the presence of self reported asthma). Information on exposure factors during the past 12 months, such as ventilation conditions, processor leaks, cleanup activities, and use of personal protective equipment was also collected. RESULTS The survey response rate was 63.9% among MRTs and 63.1% among physiotherapists. Most analyses were confined to 1110 MRTs and 1523 physiotherapists who never smoked. The prevalence of new onset asthma (since starting in the profession) was greater among never smoking MRTs than physiotherapists (6.4% v 3.95%), and this differed across gender: it was 30% greater among females but fivefold greater among males. Compared with physiotherapists, the prevalence of reporting three or more respiratory symptoms, two or more work related, and three or more work related respiratory symptoms in the past 12 months was more frequent among MRTs, with odds ratios (ORs) (and 95% confidence intervals) adjusted for age, gender, and childhood asthma, of 1.9 (1.5 to 2.3), 3.7 (2.6 to 5.3), and 3.2 (2.0 to 5.0), respectively. Analyses examining latex glove use indicated that this was not likely to account for these differences. Among MRTs, respiratory symptoms were associated with a number of workplace and exposure factors likely to generate aerosol or chemical exposures such as processors not having local ventilation, adjusted OR 2.0 (1.4 to 3.0); leaking processor in which clean up was delayed, 2.4 (1.6 to 3.5); floor drain clogged, 2.0 (1.2 to 3.2); freeing a film jam, 2.9 (1.8 to 4.8); unblocking a blocked processor drain, 2.4 (1.6 to 3.7); and cleaning up processor chemical spill, 2.8 (1.9 to 4.2). These outcomes were not associated with routine tasks unlikely to generate exposures, such as working outside primary workplace, loading film into processor, routine cleaning of processors, or removing processed film. Males reported that they carried out a number of tasks potentially associated with irritant exposures more frequently than females, consistent with the marked increase in risk for new onset asthma. CONCLUSIONS These findings suggest an increase of work related asthma and respiratory symptoms shown to denote asthma among MRTs, which is consistent with previous surveys. The mechanism is not known but appears to be linked with workplace factors and may involve a role for irritant exposures.
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Affiliation(s)
- G M Liss
- Gage Occupational and Environmental Health Unit, University of Toronto, Canada.
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Grenier D, Doherty J, Medaglia A. The Canadian and British Perspectives of Paediatric Intellectual and Neurological Deterioration (PIND): Are the Results Comparable? Paediatr Child Health 2002. [DOI: 10.1093/pch/7.suppl_a.57aa] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Grenier D, Doherty J, Medaglia A. Hemorrhagic Disease of the Newborn an International Comparison of Prophylactic Regimens of Vitamin K. Paediatr Child Health 2002. [DOI: 10.1093/pch/7.suppl_a.57a] [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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Grenier D, Doherty J, Medaglia A. Congenital Rubella Syndrome an International Perspective: are the Results Comparable? Paediatr Child Health 2002. [DOI: 10.1093/pch/7.suppl_a.57ab] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Jacobsohn DA, Margolis J, Doherty J, Anders V, Vogelsang GB. Weight loss and malnutrition in patients with chronic graft-versus-host disease. Bone Marrow Transplant 2002; 29:231-6. [PMID: 11859395 DOI: 10.1038/sj.bmt.1703352] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.5] [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: 07/03/2001] [Accepted: 10/21/2001] [Indexed: 11/09/2022]
Abstract
It is well known that weight loss occurs in patients with chronic graft-versus-host disease. However, the severity and frequency of weight loss in this population have not been adequately described. Recent data suggest that a body-mass index (BMI) below 21.9 is an independent risk factor for mortality. In our analysis we have shown that out of 93 patients with cGVHD, 43% are malnourished as evidenced by a BMI less than 21.9 and 14% are severely malnourished (BMI less than 18.5). In addition, there is a clear trend showing that patients with active, ongoing cGVHD have lower BMIs (P = 0.02). Furthermore, we show that many symptoms thought to contribute to weight loss in patients with cGVHD, such as odynophagia and oral sensitivity, are not related to weight loss in our population. We conclude that, in all likelihood, unknown causes still exist that are responsible for weight loss in this group of patients. Elevated resting energy expenditure and elevated serum tumor necrosis factor-alpha are potential contributors to weight loss that will be tested in future studies. We also conclude that treating cGVHD aggressively may help reverse weight loss and malnutrition, which may be independent risk factors for mortality in this population.
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Affiliation(s)
- D A Jacobsohn
- Oncology and Pediatrics, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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46
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Dingledine R, Doherty J. Genomics and epilepsy research in the new millenium. Acta Neurol Scand 2002. [DOI: 10.1034/j.1600-0404.2000.00202-4.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Abstract
Use of the United States Geological Survey ground water flow model MODFLOW is often hampered by the occurrence of "dry cells." While MODFLOW allows such cells to "rewet" in the course of a simulation, stability of the heads solution process is often problematical with rewetting functionality operative. In many cases of practical interest (particularly in mining applications), MODFLOW simply fails to converge. However by making a number of adjustments to the MODFLOW Block-Centered Flow package, it is possible to overcome this problem in many instances of MODFLOW deployment. These adjustments are such as to allow a layer to transmit water, albeit with a vastly reduced transmissivity, even if the water level in that layer is below its base. With these alterations MODFLOW cells can remain active even if they lie within the unsaturated zone. Testing of the code has demonstrated its ability to perform well in situations where performance of the unmodified MODFLOW is degraded by the necessity to dry and rewet cells. Comparison of heads calculated using the modified MODFLOW with those calculated using MODFLOW-SURFACT (a MODFLOW-based code developed by HydroGeoLogic Inc. that prevents the occurrence of dry cells through use of pseudo soil functions) reveals near-identical results between the two codes. Comparison with analytical solutions of water table location also reveals near coincidence. An example of one such application is presented herein.
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Affiliation(s)
- J Doherty
- Watermark Numerical Computing, Corinda, Australia.
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Zim S, Doherty J, Ma Y, Lee E. Pathology quiz case. Castleman's disease (CD), unicentric, hyaline vascular type. Arch Otolaryngol Head Neck Surg 2001; 127:1133-5. [PMID: 11556867 DOI: 10.1001/archotol.127.9.1133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- S Zim
- University of Southern California School of Medicine, Los Angeles, USA
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Rimmer T, Jones M, Powell T, Nottingham J, Lindstrom P, McIlwain JC, James TL, Midgley A, Doherty J, Crossan L. Not reading and signing letters you have dictated. West J Med 2001. [DOI: 10.1136/bmj.323.7310.448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Doherty J, Dingledine R. Reduced excitatory drive onto interneurons in the dentate gyrus after status epilepticus. J Neurosci 2001; 21:2048-57. [PMID: 11245688 PMCID: PMC6762593] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
Impaired GABAergic inhibition may contribute to the development of hyperexcitability in epilepsy. We used the pilocarpine model of epilepsy to demonstrate that regulation of excitatory synaptic drive onto GABAergic interneurons is impaired during epileptogenesis. Synaptic input from granule cells (GCs), perforant path, and CA3 inputs onto hilar border interneurons of the dentate gyrus were examined in rat hippocampal slices during the latent period (1-8 d) after induction of status epilepticus (SE). Short-term depression (STD) of GC inputs to interneurons induced by brief (500-800 msec), repetitive (5-20 Hz) stimulation, as well as paired-pulse depression at both GC and CA3 inputs to interneurons, were significantly (p < 0.05) enhanced in SE-experienced rats. In contrast, we found no significant differences between SE-experienced and age-matched control rats in the properties of minimal EPSCs evoked at low frequency (0.3 Hz). Consistent with reduced GABAergic inhibition onto granule cells, paired-pulse depression of perforant path-evoked granule cell population spikes was lost in SE-experienced rats. Enhanced STD was partially mediated by group II metabotropic glutamate receptors, because the selective antagonist, 2S-2-amino-2-(1S,2S-2-carboxycyclopropyl-1-yl)-3-(xanth-9-yl)propanoic acid, attenuated STD in SE-experienced rats but had no effect on STD of GC inputs in the normal adult rat. The group II mGluR agonist, (2S',1R',2R',3R')-2-(2,3-dicarboxylcyclopropyl) glycine (1 micrometer), produced a greater depression of GC input to hilar border interneurons in SE-experienced rats than in controls. These results indicate that, in the SE-experienced rat, excitatory drive to hilar border inhibitory interneurons is weakened through a use-dependent mechanism involving group II metabotropic glutamate receptors.
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Affiliation(s)
- J Doherty
- Department of Pharmacology, Emory University Medical School, Atlanta, Georgia 30322, USA.
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