127 results on '"Leach, JP"'
Search Results
2. Viva la VOSCE?
- Author
-
Boyle, J. G., Colquhoun, I., Noonan, Z., McDowall, S., Walters, M. R., and Leach, JP.
- Published
- 2020
- Full Text
- View/download PDF
3. Protocol for the development of an international Core Outcome Set for treatment trials in adults with epilepsy: the Epilepsy outcome Set for Effectiveness Trials Project (EPSET)
- Author
-
Mitchell, JW, Noble, A, Baker, G, Batchelor, R, Brigo, F, Christensen, J, French, J, Gil-Nagel, A, Guekht, A, Jette, N, Kalviainen, R, Leach, JP, Maguire, M, O'Brien, T, Rosenow, F, Ryvlin, P, Tittensor, P, Tripathi, M, Trinka, E, Wiebe, S, Williamson, PR, Marson, T, Mitchell, JW, Noble, A, Baker, G, Batchelor, R, Brigo, F, Christensen, J, French, J, Gil-Nagel, A, Guekht, A, Jette, N, Kalviainen, R, Leach, JP, Maguire, M, O'Brien, T, Rosenow, F, Ryvlin, P, Tittensor, P, Tripathi, M, Trinka, E, Wiebe, S, Williamson, PR, and Marson, T
- Abstract
BACKGROUND: A Core Outcome Set (COS) is a standardised list of outcomes that should be reported as a minimum in all clinical trials. In epilepsy, the choice of outcomes varies widely among existing studies, particularly in clinical trials. This diminishes opportunities for informed decision-making, contributes to research waste and is a barrier to integrating findings in systematic reviews and meta-analyses. Furthermore, the outcomes currently being measured may not reflect what is important to people with epilepsy. Therefore, we aim to develop a COS specific to clinical effectiveness research for adults with epilepsy using Delphi consensus methodology. METHODS: The EPSET Study will comprise of three phases and follow the core methodological principles as outlined by the Core Outcome Measures in Effectiveness Trials (COMET) Initiative. Phase 1 will include two focused literature reviews to identify candidate outcomes from the qualitative literature and current outcome measurement practice in phase III and phase IV clinical trials. Phase 2 aims to achieve international consensus to define which outcomes should be measured as a minimum in future trials, using a Delphi process including an online consensus meeting involving key stakeholders. Phase 3 will involve dissemination of the ratified COS to facilitate uptake in future trials and the planning of further research to identify the most appropriate measurement instruments to use to capture the COS in research practice. DISCUSSION: Harmonising outcome measurement across future clinical trials should ensure that the outcomes measured are relevant to patients and health services, and allow for more meaningful results to be obtained. CORE OUTCOME SET REGISTRATION: COMET Initiative as study 118 .
- Published
- 2022
4. Modern management of epilepsy
- Author
-
Leach, JP and Abassi, H
- Published
- 2013
- Full Text
- View/download PDF
5. 25 - Neurology
- Author
-
Leach, JP and Davenport, RJ
- Published
- 2018
- Full Text
- View/download PDF
6. Handling of neurology referrals to a DGH clinic: impact of GP clinical assistants
- Author
-
Smith, DF, Vlies, M, Bartolo, R, and Leach, JP
- Published
- 2001
7. WED 027 Acute neurology in glasgow
- Author
-
Tyagi A, Brennan M, and Leach Jp
- Subjects
medicine.medical_specialty ,Neurology ,business.industry ,Audit ,medicine.disease ,University hospital ,Patient care ,Psychiatry and Mental health ,Medicine ,Surgery ,In patient ,Neurology (clinical) ,Medical emergency ,business ,Neurological problems - Abstract
Provision of acute liaison in-patient neurology reduces demand on neurology out patient services, reduces unnecessary investigations and use of medical beds by patients waiting on in-patient neurology review and allows speedier access to necessary neurological services for those with a neurological illness.The pressure on acute neurology beds at QEUH Glasgow is immense and there is considerable delay in patients waiting for admission to the ward. An audit of the acute on call service in mid 2015 showed a 100% increase in the number of phone calls received by the on call registrar when compared to a similar audit in 2008. The number of requests for ward visiting to review medical inpatients at the Queen Elizabeth University hospital increased by more than 100% over the previous year.In June 2016 an Acute Neurology rota was introduced whereby a Consultant Neurologist supervised and delivered patient care for the acute neurology wards, referrals from medical wards and acute receiving, as well as twice a week acute neurology clinics. This has led to a significantly improved care for patients referred with neurological problems as perceived by trainees, consultants and referring medical physicians, as evident on a survey carried out in 2017.
- Published
- 2018
- Full Text
- View/download PDF
8. Neurology liaison services in the acute medical receiving unit
- Author
-
Morrison, I, primary, Jamdar, R, additional, Shah, P, additional, Fisher, M, additional, and Leach, JP, additional
- Published
- 2013
- Full Text
- View/download PDF
9. Seizure risk from cavernous or arteriovenous malformations: prospective population-based study.
- Author
-
Josephson CB, Leach JP, Duncan R, Roberts RC, Counsell CE, Al-Shahi Salman R, Scottish Audit of Intracranial Vascular Malformations (SAIVMs) steering committee and collaborators, Josephson, C B, Leach, J-P, Duncan, R, Roberts, R C, Counsell, C E, and Al-Shahi Salman, R
- Published
- 2011
- Full Text
- View/download PDF
10. Drug focus. Levetiracetam in the management of epilepsy.
- Author
-
Leach JP
- Published
- 2004
- Full Text
- View/download PDF
11. Improvement in adult-onset Rasmussen's encephalitis with long-term immunomodulatory therapy.
- Author
-
Leach JP, Chadwick DW, Miles JB, Hart IK, Leach, J P, Chadwick, D W, Miles, J B, and Hart, I K
- Published
- 1999
- Full Text
- View/download PDF
12. A DIAGNOSTIC DILEMMA: RAPID COGNITIVE DECLINE WITH WHITE MATTER DISEASE.
- Author
-
Miller, SL, Razvi, SS, Stewart, W, Santosh, C, Macdonald, I, and Leach, JP
- Subjects
COGNITION - Abstract
An abstract of the article "A Diagnostic Dilemma: Rapid Cognitive Decline With White Matter Disease," by S. L. Miller, W. Stewart, C. Santosh, and colleagues is presented.
- Published
- 2008
13. Success or failure with antiepileptic drug therapy: Beyond empiricism?
- Author
-
Brodie MJ, Leach JP, Brodie, Martin J, and Leach, John Paul
- Published
- 2003
- Full Text
- View/download PDF
14. Mechanisms of disease perpetuation and pathogenesis in autoantibody-mediated epilepsies with a focus on LGI1- and CASPR2-related syndromes
- Author
-
Michael, S, Rinaldi, S, Leach, JP, Irani, SR, and Sen, A
- Subjects
Bone marrow cells ,B cells ,Plasma cells ,Epilepsy ,Immunoglobulin M ,Neurology ,Immunoglobulin G ,Autoimmune diseases ,Immunology ,Encephalitis ,Immunotherapy ,Chemokines ,Autoantibodies - Abstract
Background and Aims: This thesis explores the clinical and immunological aspects of LGI1- and CASPR2-autoantibody syndromes – rare, immunotherapy-responsive conditions mediated by autoantibodies against neuronal cell surface antigens. Two paradigms of autoantibody production exist: ongoing germinal centre (GC) reactions, and long-lived plasma cells (LLPCs). We aimed to expand the clinical phenotypes, and explore the underlying immunobiology using patient biological samples. We aimed to examine the concept of GC reactions through study of serum IgM antibodies, CXCL13 levels, and patient serum binding patterns to the two major LGI1 domains (LRR and EPTP), and to directly investigate the potential role of the bone marrow (BM) compartment by asking whether BM-derived antigen-specific LLPCs contribute to LGI1-autoantibody production. Methodology: Detailed clinical phenotyping was undertaken for 107 LGI1-autoantibody patients. The CASPR2 IgM live cell-based assay (CBA) was developed, optimised, and tested in 120 sera including n=51 from 25 patients with CASPR2-IgG. LGI1 IgMs were tested by live CBA in 120 IgG-depleted sera (n=70 from patients with LGI1-IgG). End-titrations against full-length LGI1, and LRR and EPTP were quantified by live CBA for 102 sera and 11 CSF samples from 38 LGI1-autoantibody patients. A CXCL13 assay was developed and serum CXCL13 levels were determined in 543 samples from 398 subjects, including 161 sera from 52 LGI1 autoantibody patients. LLPCs, defined by flow cytometry as live, CD3-CD14-CD20-CD19-/lowCD138+ cells, were purified from fresh BM aspirate from n=2 patients with LGI1-autoantibody encephalitis. BM LLPC oligocultures were maintained in optimized culture conditions (IL-6, CXCL12, APRIL, and BAFF). After 7 days, culture supernatants were tested for LGI1-IgG by live CBA. Results: Potential triggers including prodromal infection and vaccination were identified in ~20% of patients, at a median time of 3.5 weeks prior to symptom onset. 11 distinct subtypes of seizures were identified, and patients manifested up to 5 seizure semiologies. When compared to a pharmacoresistant epilepsy cohort (n=218), the proportion of patients with ≥ 3 seizure types was higher in the LGI1-autoantibody patient group (p=0.0039**). Relapses were common, (39/107; 36%), and 36% of these had multiple relapses. The most common precipitant of relapse was steroid weaning or cessation (80%). FBDS significantly associated with relapse, present in 77% relapsing versus 46% non-relapsing patients (p=0.002**). Novel clinical features including hoarding and obsessive-compulsive behaviours were found in 35%, and unusual manual stereotypies which we have termed ‘complex motor behaviours’ in 5%, which may represent either a novel seizure semiology or the sleep disorder agrypnia excitata. IgMs were uncommon, detected in 16% of CASPR2- and 17% of LGI1-autoantibody patients. In LGI1-antibody patients, 7/8 (88%) positive samples were from relapsing patients, suggesting that IgM may be a marker of relapse. Almost all (97%) patients had serum autoantibodies to both LGI1 domains, and within individual samples EPTP and LRR end-titres showed strong correlations (Spearman r = 0.9257, p Conclusions: Herein, the clinical features of the largest UK cohort of patients with LGI1-autoantibodies are described, expanding the current clinical phenotypes with seizure and relapse characteristics, and novel descriptions including hoarding and ‘complex motor behaviours’. We show that whilst IgMs are rare, LGI1-IgM may be a marker of relapse, and other GC activity markers including CXCL13 may be useful biomarkers in LGI1-autoantibody patients. We demonstrate the presence of LGI1-specific BM-derived LLPCs in a patient with autoimmune encephalitis by direct sampling of their BM. These proof-of-concept data demonstrate that the BM is a site for long-term autoantibody production and suggest a role for BM-derived LLPCs in autoimmune encephalitis. Collectively, these results suggest that both GC reactions and LLPC-driven mechanisms of autoantibody production appear to operate synergistically in patients with LGI1 autoantibodies. These paradigms may be applied to other autoantibody-mediated conditions. Overall, these findings expand the clinical phenotypes and provide novel insights into disease immunobiology which may inform use of more targeted immunotherapies to improve clinical outcomes in these patients.
- Published
- 2022
15. The SANAD study of effectiveness of valproate, lamotrigine, or topiramate for generalised and unclassifiable epilepsy: an unblinded randomised controlled trial.
- Author
-
Marson AG, Al-Kharusi AM, Alwaidh M, Appleton R, Baker GA, Chadwick DW, Cramp C, Cockerell OC, Cooper PN, Doughty J, Eaton B, Gamble C, Goulding PJ, Howell SJL, Hughes A, Jackson M, Jacoby A, Kellett M, Lawson GR, and Leach JP
- Abstract
Background: Valproate is widely accepted as a drug of first choice for patients with generalised onset seizures, and its broad spectrum of efficacy means it is recommended for patients with seizures that are difficult to classify. Lamotrigine and topiramate are also thought to possess broad spectrum activity. The SANAD study aimed to compare the longer-term effects of these drugs in patients with generalised onset seizures or seizures that are difficult to classify.Methods: SANAD was an unblinded randomised controlled trial in hospital-based outpatient clinics in the UK. Arm B of the study recruited 716 patients for whom valproate was considered to be standard treatment. Patients were randomly assigned to valproate, lamotrigine, or topiramate between Jan 12, 1999, and Aug 31, 2004, and follow-up data were obtained up to Jan 13, 2006. Primary outcomes were time to treatment failure, and time to 1-year remission, and analysis was by both intention to treat and per protocol. This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN38354748.Findings: For time to treatment failure, valproate was significantly better than topiramate (hazard ratio 1.57 [95% CI 1.19-2.08]), but there was no significant difference between valproate and lamotrigine (1.25 [0.94-1.68]). For patients with an idiopathic generalised epilepsy, valproate was significantly better than both lamotrigine (1.55 [1.07-2.24] and topiramate (1.89 [1.32-2.70]). For time to 12-month remission valproate was significantly better than lamotrigine overall (0.76 [0.62-0.94]), and for the subgroup with an idiopathic generalised epilepsy 0.68 (0.53-0.89). But there was no significant difference between valproate and topiramate in either the analysis overall or for the subgroup with an idiopathic generalised epilepsy.Interpretation: Valproate is better tolerated than topiramate and more efficacious than lamotrigine, and should remain the drug of first choice for many patients with generalised and unclassified epilepsies. However, because of known potential adverse effects of valproate during pregnancy, the benefits for seizure control in women of childbearing years should be considered. [ABSTRACT FROM AUTHOR]- Published
- 2007
- Full Text
- View/download PDF
16. The SANAD study of effectiveness of carbamazepine, gabapentin, lamotrigine, oxcarbazepine, or topiramate for treatment of partial epilepsy: an unblinded randomised controlled trial.
- Author
-
Marson AG, Al-Kharusi AM, Alwaidh M, Appleton R, Baker GA, Chadwick DW, Cramp C, Cockerell OC, Cooper PN, Doughty J, Eaton B, Gamble C, Goulding PJ, Howell SJL, Hughes A, Jackson M, Jacoby A, Kellett M, Lawson GR, and Leach JP
- Abstract
Background: Carbamazepine is widely accepted as a drug of first choice for patients with partial onset seizures. Several newer drugs possess efficacy against these seizure types but previous randomised controlled trials have failed to inform a choice between these drugs. We aimed to assess efficacy with regards to longer-term outcomes, quality of life, and health economic outcomes.Methods: SANAD was an unblinded randomised controlled trial in hospital-based outpatient clinics in the UK. Arm A recruited 1721 patients for whom carbamazepine was deemed to be standard treatment, and they were randomly assigned to receive carbamazepine, gabapentin, lamotrigine, oxcarbazepine, or topiramate. Primary outcomes were time to treatment failure, and time to 12-months remission, and assessment was by both intention to treat and per protocol. This study is registered as an International Standard Randomised Controlled Trial, number ISRCTN38354748.Findings: For time to treatment failure, lamotrigine was significantly better than carbamazepine (hazard ratio [HR] 0.78 [95% CI 0.63-0.97]), gabapentin (0.65 [0.52-0.80]), and topiramate (0.64 [0.52-0.79]), and had a non-significant advantage compared with oxcarbazepine (1.15 [0.86-1.54]). For time to 12-month remission carbamazepine was significantly better than gabapentin (0.75 [0.63-0.90]), and estimates suggest a non-significant advantage for carbamazepine against lamotrigine (0.91 [0.77-1.09]), topiramate (0.86 [0.72-1.03]), and oxcarbazepine (0.92 [0.73-1.18]). In a per-protocol analysis, at 2 and 4 years the difference (95% CI) in the proportion achieving a 12-month remission (lamotrigine-carbamazepine) is 0 (-8 to 7) and 5 (-3 to 12), suggesting non-inferiority of lamotrigine compared with carbamazepine.Interpretation: Lamotrigine is clinically better than carbamazepine, the standard drug treatment, for time to treatment failure outcomes and is therefore a cost-effective alternative for patients diagnosed with partial onset seizures. [ABSTRACT FROM AUTHOR]- Published
- 2007
- Full Text
- View/download PDF
17. Characterising people with focal drug-resistant epilepsy: A retrospective cohort study.
- Author
-
Benoist C, Boccaletti S, Leach JP, Cattaneo A, Chaplin A, Antunes L, Heiman F, and Sander JW
- Subjects
- Female, Humans, Middle Aged, Male, Retrospective Studies, Anticonvulsants therapeutic use, Lamotrigine therapeutic use, Epilepsies, Partial drug therapy, Epilepsy drug therapy, Epilepsy epidemiology, Drug Resistant Epilepsy drug therapy, Drug Resistant Epilepsy epidemiology
- Abstract
Objectives: To describe the demographics, clinical characteristics, drug treatment outcomes, healthcare resource utilization, and injuries among people with focal drug-resistant epilepsy (F-DRE) analysed separately for six European countries., Methods: We used electronic medical record data from six European (Belgium, Spain, Italy, France, UK and Germany) primary care/specialist care databases to identify antiseizure medication (ASM) treatment-naïve people (aged ≥ 18 years at F-DRE diagnosis). They were followed from their epilepsy diagnosis until death, the date of last record available, or study end. We used descriptive analyses to characterise the F-DRE cohort, and results were reported by country., Results: One-thousand-seventy individuals with F-DRE were included (mean age 52.5 years; 55.4 % female). The median follow-up time from the first diagnosis to the end of the follow-up was 95.5 months across all countries. The frequency of F-DRE diagnosis in 2021 ranged from 8.8 % in Italy to 18.2 % in Germany. Psychiatric disorders were the most common comorbidity across all countries. Frequently reported psychiatric disorders were depression (26.7 %) and anxiety (11.8 %). The median time from epilepsy diagnosis to the first ASM failure ranged from 5.9 (4.2-10.2) months in France to 12.6 (5.8-20.4) months in Spain. Levetiracetam and lamotrigine were the most commonly used ASM monotherapies in all countries. Consultation with a general practitioner is sought more frequently after F-DRE diagnosis than after epilepsy diagnosis, except in the UK., Significance: No one ASM is optimal for all people with F-DRE, and the risks and benefits of the ASM must be considered. Comorbidities must be an integral part of the management strategy and drive the choice of drugs., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2023 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
18. Enhancing departmental teaching in the digital age: as easy as 1-3-5.
- Author
-
Fenech V, Martin SJ, and Leach JP
- Subjects
- Humans, Teaching, Teaching Rounds, Neurology education
- Abstract
We have recently introduced a new item to our neurology Grand Rounds-the '1-3-5 presentation'. The format comprises a presentation on one topic, using three slides and lasting no more than 5 minutes. This a useful way of covering brief single topics and introducing and sparking discussion on more complex ones. '1-3-5s' have proven popular in our department and we have compiled a library of these presentations that is hosted on a YouTube channel. This article discusses the benefits and prospects for this format and encourages other units to provide similar opportunities for teaching and learning among all clinical grades., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
19. Alcohol and the central nervous system.
- Author
-
Wolfe M, Menon A, Oto M, Fullerton NE, and Leach JP
- Subjects
- Female, Humans, Pregnancy, Central Nervous System, Ethanol, Alcoholism complications, Wernicke Encephalopathy diagnosis, Wernicke Encephalopathy etiology, Cerebellar Diseases complications
- Abstract
Ethanol use is common to most cultures but with varying doses and to varying extents. While research has focused on the effects on the liver, alcohol exerts a range of actions on the function and structure of the nervous system. In the central nervous system (CNS) it can provoke or exacerbate neurological and psychiatric disease; its effects on the peripheral nervous system are not included in this review. Sustained alcohol intake can predispose to acute neurochemical changes which, with continued ingestion and incomplete treatment, can lead to chronic structural changes in the CNS: these include generalised cortical and cerebellar atrophy, amnesic syndromes such as Korsakoff's syndrome, and specific white matter disorders such as central pontine myelinolysis and Marchiafava-Bignami syndrome. Alcohol in pregnancy commonly and significantly affects fetal health, though this receives less medical and political attention than other causes of fetal harm. This review looks at the range of disorders that can follow acute or chronic alcohol use, and how these should be managed, and we provide a practical overview on how neurologists might diagnose and manage alcohol addiction., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2023. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2023
- Full Text
- View/download PDF
20. Temporal and spatial staging of lung alveolar regeneration is determined by the grainyhead transcription factor Tfcp2l1.
- Author
-
Cardenas-Diaz FL, Liberti DC, Leach JP, Babu A, Barasch J, Shen T, Diaz-Miranda MA, Zhou S, Ying Y, Callaway DA, Morley MP, and Morrisey EE
- Subjects
- Animals, Mice, Cell Differentiation, Gene Expression Regulation, Pulmonary Alveoli, Lung metabolism, Transcription Factors metabolism
- Abstract
Alveolar epithelial type 2 (AT2) cells harbor the facultative progenitor capacity in the lung alveolus to drive regeneration after lung injury. Using single-cell transcriptomics, software-guided segmentation of tissue damage, and in vivo mouse lineage tracing, we identified the grainyhead transcription factor cellular promoter 2-like 1 (Tfcp2l1) as a regulator of this regenerative process. Tfcp2l1 loss in adult AT2 cells inhibits self-renewal and enhances AT2-AT1 differentiation during tissue regeneration. Conversely, Tfcp2l1 blunts the proliferative response to inflammatory signaling during the early acute injury phase. Tfcp2l1 temporally regulates AT2 self-renewal and differentiation in alveolar regions undergoing active regeneration. Single-cell transcriptomics and lineage tracing reveal that Tfcp2l1 regulates cell fate dynamics across the AT2-AT1 differentiation and restricts the inflammatory program in murine AT2 cells. Organoid modeling shows that Tfcp2l1 regulation of interleukin-1 (IL-1) receptor expression controlled these cell fate dynamics. These findings highlight the critical role Tfcp2l1 plays in balancing epithelial cell self-renewal and differentiation during alveolar regeneration., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2023 The Author(s). Published by Elsevier Inc. All rights reserved.)
- Published
- 2023
- Full Text
- View/download PDF
21. Protocol for the development of an international Core Outcome Set for treatment trials in adults with epilepsy: the EPilepsy outcome Set for Effectiveness Trials Project (EPSET).
- Author
-
Mitchell JW, Noble A, Baker G, Batchelor R, Brigo F, Christensen J, French J, Gil-Nagel A, Guekht A, Jette N, Kälviäinen R, Leach JP, Maguire M, O'Brien T, Rosenow F, Ryvlin P, Tittensor P, Tripathi M, Trinka E, Wiebe S, Williamson PR, and Marson T
- Subjects
- Adult, Humans, Delphi Technique, Systematic Reviews as Topic, Outcome Assessment, Health Care, Research Design, Epilepsy diagnosis, Epilepsy therapy
- Abstract
Background: A Core Outcome Set (COS) is a standardised list of outcomes that should be reported as a minimum in all clinical trials. In epilepsy, the choice of outcomes varies widely among existing studies, particularly in clinical trials. This diminishes opportunities for informed decision-making, contributes to research waste and is a barrier to integrating findings in systematic reviews and meta-analyses. Furthermore, the outcomes currently being measured may not reflect what is important to people with epilepsy. Therefore, we aim to develop a COS specific to clinical effectiveness research for adults with epilepsy using Delphi consensus methodology., Methods: The EPSET Study will comprise of three phases and follow the core methodological principles as outlined by the Core Outcome Measures in Effectiveness Trials (COMET) Initiative. Phase 1 will include two focused literature reviews to identify candidate outcomes from the qualitative literature and current outcome measurement practice in phase III and phase IV clinical trials. Phase 2 aims to achieve international consensus to define which outcomes should be measured as a minimum in future trials, using a Delphi process including an online consensus meeting involving key stakeholders. Phase 3 will involve dissemination of the ratified COS to facilitate uptake in future trials and the planning of further research to identify the most appropriate measurement instruments to use to capture the COS in research practice., Discussion: Harmonising outcome measurement across future clinical trials should ensure that the outcomes measured are relevant to patients and health services, and allow for more meaningful results to be obtained., Core Outcome Set Registration: COMET Initiative as study 118 ., (© 2022. The Author(s).)
- Published
- 2022
- Full Text
- View/download PDF
22. Gene Therapy Knockdown of Hippo Signaling Resolves Arrhythmic Events in Pigs After Myocardial Infarction.
- Author
-
Zhang S, Liu S, Leach JP, Li K, Perin EC, and Martin JF
- Subjects
- Animals, Swine, Arrhythmias, Cardiac, Genetic Therapy, Hippo Signaling Pathway, Myocardial Infarction genetics, Myocardial Infarction therapy
- Published
- 2022
- Full Text
- View/download PDF
23. Disruption of proteostasis causes IRE1 mediated reprogramming of alveolar epithelial cells.
- Author
-
Katzen J, Rodriguez L, Tomer Y, Babu A, Zhao M, Murthy A, Carson P, Barrett M, Basil MC, Carl J, Leach JP, Morley M, McGraw MD, Mulugeta S, Pelura T, Rosen G, Morrisey EE, and Beers MF
- Subjects
- Endoplasmic Reticulum Stress, Endoribonucleases genetics, Endoribonucleases metabolism, Inositol metabolism, Proteostasis, Pulmonary Surfactant-Associated Protein C metabolism, Alveolar Epithelial Cells metabolism, Lung Injury pathology, Protein Serine-Threonine Kinases genetics, Pulmonary Fibrosis genetics, Membrane Proteins genetics, Cellular Reprogramming
- Abstract
Disruption of alveolar type 2 cell (AEC2) protein quality control has been implicated in chronic lung diseases, including pulmonary fibrosis (PF). We previously reported the in vivo modeling of a clinical surfactant protein C (SP-C) mutation that led to AEC2 endoplasmic reticulum (ER) stress and spontaneous lung fibrosis, providing proof of concept for disruption to proteostasis as a proximal driver of PF. Using two clinical SP-C mutation models, we have now discovered that AEC2s experiencing significant ER stress lose quintessential AEC2 features and develop a reprogrammed cell state that heretofore has been seen only as a response to lung injury. Using single-cell RNA sequencing in vivo and organoid-based modeling, we show that this state arises de novo from intrinsic AEC2 dysfunction. The cell-autonomous AEC2 reprogramming can be attenuated through inhibition of inositol-requiring enzyme 1 (IRE1α) signaling as the use of an IRE1α inhibitor reduced the development of the reprogrammed cell state and also diminished AEC2-driven recruitment of granulocytes, alveolitis, and lung injury. These findings identify AEC2 proteostasis, and specifically IRE1α signaling through its major product XBP-1, as a driver of a key AEC2 phenotypic change that has been identified in lung fibrosis.
- Published
- 2022
- Full Text
- View/download PDF
24. Delivery of care, seizure control and medication adherence in women with epilepsy during pregnancy.
- Author
-
Askarieh A, MacBride-Stewart S, Kirby J, Fyfe D, Hassett R, Todd J, Marshall AD, Leach JP, and Heath CA
- Subjects
- Anticonvulsants therapeutic use, Female, Humans, Medication Adherence, Pregnancy, Epilepsy drug therapy, Epilepsy epidemiology, Pregnancy Complications drug therapy, Pregnancy Complications epidemiology
- Abstract
Purpose: To evaluate service access for women with epilepsy (WWE) during pregnancy; to determine seizure frequency and rates of adherence to anti-seizure medication (ASM)., Methods: Between June 2019-June 2020, pregnant WWE within NHS Greater Glasgow and Clyde health-board were identified from the National Obstetric Register. A manual review of electronic patient records was undertaken to ensure diagnostic accuracy, as well as determine contact with epilepsy services and documented seizures. Medication dispensing records were obtained six months before and six months after midwifery booking and measures of ASM adherence calculated., Results: Between June 2019-June 2020, 4592 women were registered with a pregnancy. Eighty-five (1.9%) were identified as having active epilepsy (generalised- 40/85 (47.0%), focal- 35/85 (41.2%), unclassified- 10/85 (11.8%)). Preconceptually, 42/85 WWE (49.4%) had input from epilepsy services. Only 59/85 (69.4%) were reviewed during pregnancy (First trimester- 21/59 (35.6%), Second trimester- 25/59 (42.4%) and Third trimester- 13/59 (22.0%)). Seizure occurrence was documented in 37/85 WWE (43.5%) during the antenatal/postnatal period. 71/85 WWE (83.5%) were prescribed ASM. Poor adherence was noted in 50/85 (58.9%) and a documented seizure recorded in 26/50 (52.0%) of these women., Conclusion: Too many WWE do not receive input from epilepsy services during pregnancy, leaving some with poor ASM adherence and continued seizures. We aim to use "near-live" obstetric and dispensing data to facilitate early identification of WWE, promoting timely access to epilepsy specialists. This will also provide an opportunity to address concerns regarding ASM safety and allow medication dose changes to be considered., (Copyright © 2022. Published by Elsevier Ltd.)
- Published
- 2022
- Full Text
- View/download PDF
25. Impact of regulatory safety notices on valproate prescribing and pregnancy outcome among women of child-bearing potential in Scotland: a population-based cohort study.
- Author
-
McTaggart S, MacColl G, Gronkowski K, Wood R, Leach JP, and Bennie M
- Subjects
- Cohort Studies, Female, Humans, Pregnancy, Pregnancy Outcome epidemiology, Scotland epidemiology, Abortion, Spontaneous, Valproic Acid adverse effects
- Abstract
Objective: To examine the impact of Medicines and Healthcare products Regulatory Agency (MHRA) safety alerts on valproate prescribing among women aged 14-45 years in Scotland and examine trends in pregnancies exposed to valproate., Design: Population-based cohort study., Participants: 21 983 women of all ages who received valproate between January 2011 and December 2019., Methods: All valproate prescriptions issued to women in Scotland between January 2011 and December 2019 were identified and prevalence/incidence rates per 10 000 population derived. The impact of regulatory safety alerts on prescribing was analysed using Joinpoint models. Linked pregnancy records for January 2011 to September 2019 were identified and annual rates of pregnancy per 1000 valproate-treated women aged 14-45 years were calculated for each pregnancy outcome: live birth, stillbirth, miscarriage and termination., Results: Annual prevalent and incident rates of valproate prescribing declined in women aged 14-45 years between 2011 and 2019 from 40.5 to 18.3 per 10 000 population (54.8% reduction) and 7.9 to 1.3 per 10 000 population (83.5% reduction), respectively. Statistically significant changes occurred around the times of the MHRA safety alerts. The number of valproate-exposed pregnancies conceived each year fell from 70 in 2011 to 20 in 2018, a 71.4% reduction, and the number of live births fell from 52 to 14, a 73.0% reduction. Expressed as a rate this was a 46.4% decrease from 15.3 to 8.2 per 1000 valproate-treated women aged 14-45 years in 2011 and 2018, respectively. Live birth was the most common pregnancy outcome., Conclusion: This study demonstrates, for the first time, the capabilities of national data sets to identify drug exposure and derive pregnancy outcome at scale across Scotland. Building on this as part of an evolving national/UK surveillance capability will continue efforts to minimise in-utero exposure to valproate; enabling ongoing surveillance to understand better long-term outcomes, and to inform better provision of health and wider support services., Competing Interests: Competing interests: In the last 10 years JPL has received speaker’s fees and Advisory Board honoraria from UCB Pharma, EISAI, Desitin, GlaxoSmithKline, GW Pharmaceuticals, Biogen and Arvelle. There has been an award of an unrestricted Independent Investigator Award from UCB in 2015 to fund a research fellow. SM, GM, KG, RW and MB have no competing interests to declare., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
26. The influence of demographics and comorbidity on persistence with anti-seizure medication.
- Author
-
Marshall AD, Pell JP, Askarieh A, Leach JP, and Heath CA
- Subjects
- Anticonvulsants therapeutic use, Comorbidity, Demography, Humans, Epilepsy drug therapy, Epilepsy epidemiology, Stroke drug therapy
- Abstract
Purpose: To examine the rate of persistence with anti-seizure medications (ASMs) in a cohort of patients with epilepsy, and to investigate the impact of a range of clinical and demographic factors on persistence METHODS: Patients receiving ASMs for epilepsy were identified from linked, routinely collected data within the NHS Greater Glasgow and Clyde health board area between January 2011 and August 2019. Persistence with individual ASMs at 365-days after initiation was assessed using a 90-day allowable gap between individual prescriptions. Univariate logistic regression was used to estimate the association between 1-year persistence with ASM and demographic characteristics, comorbidities, and medication characteristics., Results: In total, 6,449 patients with epilepsy were identified - 1,631 were new users of ASMs at baseline and 4,818 had been prescribed at least one ASM prior to baseline. Persistence with individual ASMs ranged 11.8% to 78.6%. Persistence was significantly lower in younger patients and patients who had previously been non-persistent to ASMs. Persistence was higher amongst those with cardiac comorbidities, previous stroke, or higher overall comorbidity, as well as those prescribed newer ASMs., Conclusion: Persistence varied widely. Demographic factors, previous non-persistence and overall number of comorbidities were more important determinants of persistence to anti-seizure medications than specific individual comorbidities. Interventions to improve persistence should be targeted at younger patients from more deprived backgrounds and those who have previously been non-persistent with ASMs., (Copyright © 2022 The Author(s). Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2022
- Full Text
- View/download PDF
27. Epilepsy and pregnancy: identifying risks.
- Author
-
Craig JJ, Scott S, and Leach JP
- Subjects
- Anticonvulsants therapeutic use, Female, Humans, Pregnancy, Seizures complications, Epilepsy complications, Epilepsy diagnosis, Epilepsy therapy, Pregnancy Complications drug therapy, Pregnancy Complications therapy
- Abstract
Pregnancy is a time of physical, physiological and psychological challenge. For women with epilepsy, as well as its potential for joy and fulfilment, pregnancy may bring additional risks and difficulties. Clinicians must anticipate and prevent these complications, ensuring that pregnancy, delivery and motherhood proceed without obstetric or medical complications, using available evidence to balance individual risks of undertreatment and overtreatment. Here we review epilepsy management in pregnancy, identifying some of the known effects of epilepsy and its treatment on gestation, fetal malformation, delivery, and neurocognitive and behavioural development. We outline strategies to reduce obstetric and fetal complications in women with epilepsy, while recognising the sometimes competing need to maintain or improve seizure control. We reinforce the importance of identifying those at highest risk, who may require additional measures or safeguards., Competing Interests: Competing interests: JJC has received speaker fees and honoraria from GlaxoSmithKline, UCB Pharma, Pfizer, Janssen-Cilag, Eisai and Desitin. SS has received speaker fees from Arvelle and Neurology Masterclass. Over the last 3 years, JPL has received speaker fees and honoraria from UCB Pharma, Janssen-Cilag, Eisai and Arvelle., (© Author(s) (or their employer(s)) 2022. No commercial re-use. See rights and permissions. Published by BMJ.)
- Published
- 2022
- Full Text
- View/download PDF
28. Lamotrigine versus levetiracetam or zonisamide for focal epilepsy and valproate versus levetiracetam for generalised and unclassified epilepsy: two SANAD II non-inferiority RCTs.
- Author
-
Marson AG, Burnside G, Appleton R, Smith D, Leach JP, Sills G, Tudur-Smith C, Plumpton CO, Hughes DA, Williamson PR, Baker G, Balabanova S, Taylor C, Brown R, Hindley D, Howell S, Maguire M, Mohanraj R, and Smith PE
- Subjects
- Child, Preschool, Female, Humans, Cost-Benefit Analysis, Quality of Life, Child, Adolescent, Young Adult, Adult, Middle Aged, Aged, Aged, 80 and over, Male, Epilepsies, Partial drug therapy, Epilepsy drug therapy, Lamotrigine therapeutic use, Levetiracetam therapeutic use, Valproic Acid therapeutic use, Zonisamide therapeutic use
- Abstract
Background: Levetiracetam (Keppra
® , UCB Pharma Ltd, Slough, UK) and zonisamide (Zonegran® , Eisai Co. Ltd, Tokyo, Japan) are licensed as monotherapy for focal epilepsy, and levetiracetam is increasingly used as a first-line treatment for generalised epilepsy, particularly for women of childbearing age. However, there is uncertainty as to whether or not they should be recommended as first-line treatments owing to a lack of evidence of clinical effectiveness and cost-effectiveness., Objectives: To compare the clinical effectiveness and cost-effectiveness of lamotrigine (Lamictal® , GlaxoSmithKline plc, Brentford, UK) (standard treatment) with levetiracetam and zonisamide (new treatments) for focal epilepsy, and to compare valproate (Epilim® , Sanofi SA, Paris, France) (standard treatment) with levetiracetam (new treatment) for generalised and unclassified epilepsy., Design: Two pragmatic randomised unblinded non-inferiority trials run in parallel., Setting: Outpatient services in NHS hospitals throughout the UK., Participants: Those aged ≥ 5 years with two or more spontaneous seizures that require anti-seizure medication., Interventions: Participants with focal epilepsy were randomised to receive lamotrigine, levetiracetam or zonisamide. Participants with generalised or unclassifiable epilepsy were randomised to receive valproate or levetiracetam. The randomisation method was minimisation using a web-based program., Main Outcome Measures: The primary outcome was time to 12-month remission from seizures. For this outcome, and all other time-to-event outcomes, we report hazard ratios for the standard treatment compared with the new treatment. For the focal epilepsy trial, the non-inferiority limit (lamotrigine vs. new treatments) was 1.329. For the generalised and unclassified epilepsy trial, the non-inferiority limit (valproate vs. new treatments) was 1.314. Secondary outcomes included time to treatment failure, time to first seizure, time to 24-month remission, adverse reactions, quality of life and cost-effectiveness., Results: Focal epilepsy . A total of 990 participants were recruited, of whom 330 were randomised to receive lamotrigine, 332 were randomised to receive levetiracetam and 328 were randomised to receive zonisamide. Levetiracetam did not meet the criteria for non-inferiority (hazard ratio 1.329) in the primary intention-to-treat analysis of time to 12-month remission (hazard ratio vs. lamotrigine 1.18, 97.5% confidence interval 0.95 to 1.47), but zonisamide did meet the criteria (hazard ratio vs. lamotrigine 1.03, 97.5% confidence interval 0.83 to 1.28). In the per-protocol analysis, lamotrigine was superior to both levetiracetam (hazard ratio 1.32, 95% confidence interval 1.05 to 1.66) and zonisamide (hazard ratio 1.37, 95% confidence interval 1.08 to 1.73). For time to treatment failure, lamotrigine was superior to levetiracetam (hazard ratio 0.60, 95% confidence interval 0.46 to 0.77) and zonisamide (hazard ratio 0.46, 95% confidence interval 0.36 to 0.60). Adverse reactions were reported by 33% of participants starting lamotrigine, 44% starting levetiracetam and 45% starting zonisamide. In the economic analysis, both levetiracetam and zonisamide were more costly and less effective than lamotrigine and were therefore dominated. Generalised and unclassifiable epilepsy . Of 520 patients recruited, 260 were randomised to receive valproate and 260 were randomised to receive to levetiracetam. A total of 397 patients had generalised epilepsy and 123 had unclassified epilepsy. Levetiracetam did not meet the criteria for non-inferiority in the primary intention-to-treat analysis of time to 12-month remission (hazard ratio 1.19, 95% confidence interval 0.96 to 1.47; non-inferiority margin 1.314). In the per-protocol analysis of time to 12-month remission, valproate was superior to levetiracetam (hazard ratio 1.68, 95% confidence interval 1.30 to 2.15). Valproate was superior to levetiracetam for time to treatment failure (hazard ratio 0.65, 95% confidence interval 0.50 to 0.83). Adverse reactions were reported by 37.4% of participants receiving valproate and 41.5% of those receiving levetiracetam. Levetiracetam was both more costly (incremental cost of £104, 95% central range -£587 to £1234) and less effective (incremental quality-adjusted life-year of -0.035, 95% central range -0.137 to 0.032) than valproate, and was therefore dominated. At a cost-effectiveness threshold of £20,000 per quality-adjusted life-year, levetiracetam was associated with a probability of 0.17 of being cost-effective., Limitations: The SANAD II trial was unblinded, which could have biased results by influencing decisions about dosing, treatment failure and the attribution of adverse reactions., Future Work: SANAD II data could now be included in an individual participant meta-analysis of similar trials, and future similar trials are required to assess the clinical effectiveness and cost-effectiveness of other new treatments, including lacosamide and perampanel., Conclusions: Focal epilepsy - The SANAD II findings do not support the use of levetiracetam or zonisamide as first-line treatments in focal epilepsy. Generalised and unclassifiable epilepsy - The SANAD II findings do not support the use of levetiracetam as a first-line treatment for newly diagnosed generalised epilepsy. For women of childbearing potential, these results inform discussions about the benefit (lower teratogenicity) and harm (worse seizure outcomes and higher treatment failure rate) of levetiracetam compared with valproate., Trial Registration: Current Controlled Trials ISRCTN30294119 and EudraCT 2012-001884-64., Funding: This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment ; Vol. 25, No. 75. See the NIHR Journals Library website for further project information.- Published
- 2021
- Full Text
- View/download PDF
29. Age-dependent alveolar epithelial plasticity orchestrates lung homeostasis and regeneration.
- Author
-
Penkala IJ, Liberti DC, Pankin J, Sivakumar A, Kremp MM, Jayachandran S, Katzen J, Leach JP, Windmueller R, Stolz K, Morley MP, Babu A, Zhou S, Frank DB, and Morrisey EE
- Subjects
- Animals, Homeostasis, Mice, Respiratory Mucosa, Signal Transduction, Alveolar Epithelial Cells, Lung
- Abstract
Regeneration of the architecturally complex alveolar niche of the lung requires precise temporal and spatial control of epithelial cell behavior. Injury can lead to a permanent reduction in gas exchange surface area and respiratory function. Using mouse models, we show that alveolar type 1 (AT1) cell plasticity is a major and unappreciated mechanism that drives regeneration, beginning in the early postnatal period during alveolar maturation. Upon acute neonatal lung injury, AT1 cells reprogram into alveolar type 2 (AT2) cells, promoting alveolar regeneration. In contrast, the ability of AT2 cells to regenerate AT1 cells is restricted to the mature lung. Unbiased genomic assessment reveals that this previously unappreciated level of plasticity is governed by the preferential activity of Hippo signaling in the AT1 cell lineage. Thus, cellular plasticity is a temporally acquired trait of the alveolar epithelium and presents an alternative mode of tissue regeneration in the postnatal lung., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2021 Elsevier Inc. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
30. Winning hearts and minds: ECG reporting in the first seizure clinic.
- Author
-
Huang X, Malek N, Simpson J, Kalladka D, Dunn FG, and Leach JP
- Subjects
- Adult, Clinical Competence, Female, Heart Diseases complications, Heart Diseases physiopathology, Humans, Male, Middle Aged, Predictive Value of Tests, Reproducibility of Results, Retrospective Studies, Scotland, Syncope etiology, Syncope physiopathology, Unconsciousness etiology, Young Adult, Cardiologists, Electrocardiography, Heart Diseases diagnosis, Neurologists, Outpatient Clinics, Hospital, Seizures diagnosis, Syncope diagnosis
- Abstract
Background and Aims: An electrocardiogram (ECG) is a mandatory test for anyone presenting with loss of consciousness. Many referrals to the first seizure clinic (FSC) are caused by syncope. We assessed the sensitivity of neurologists' ECG reporting in detecting rhythm abnormalities including some potentially life-threatening cardiac conditions., Methods: We audited patients referred to a FSC in Glasgow over 4 years. All ECGs were interpreted by the attending neurologist as standard practice. Subsequently, two cardiologists reviewed the ECGs independently., Results: Of 160 consecutive patients, 92 patients (58%) were diagnosed as having seizures, 43 (27%) as syncope, and 25 (16%) were unclassified. Twenty eight ECGs thought to be normal by the neurologist were considered abnormal by the cardiologist, including three with long corrected QT interval. The proportion of abnormal ECGs and disparity in reporting between neurologists and cardiologists persisted independent of the underlying diagnosis., Conclusion: Reporting of ECGs by non-cardiologists may not be adequately sensitive in picking up potentially life threatening cardiac conditions. Cardiologist input into FSCs is recommended to enhance the diagnostic yield., (© 2021. The Author(s).)
- Published
- 2021
- Full Text
- View/download PDF
31. Gene therapy knockdown of Hippo signaling induces cardiomyocyte renewal in pigs after myocardial infarction.
- Author
-
Liu S, Li K, Wagner Florencio L, Tang L, Heallen TR, Leach JP, Wang Y, Grisanti F, Willerson JT, Perin EC, Zhang S, and Martin JF
- Subjects
- Animals, Dependovirus genetics, Disease Models, Animal, Genetic Therapy, Mice, Signal Transduction, Swine, Myocardial Infarction therapy, Myocytes, Cardiac
- Abstract
Human heart failure, a leading cause of death worldwide, is a prominent example of a chronic disease that may result from poor cell renewal. The Hippo signaling pathway is an inhibitory kinase cascade that represses adult heart muscle cell (cardiomyocyte) proliferation and renewal after myocardial infarction in genetically modified mice. Here, we investigated an adeno-associated virus 9 (AAV9)-based gene therapy to locally knock down the Hippo pathway gene Salvador ( Sav ) in border zone cardiomyocytes in a pig model of ischemia/reperfusion-induced myocardial infarction. Two weeks after myocardial infarction, when pigs had left ventricular systolic dysfunction, we administered AAV9- Sav -short hairpin RNA (shRNA) or a control AAV9 viral vector carrying green fluorescent protein (GFP) directly into border zone cardiomyocytes via catheter-mediated subendocardial injection. Three months after injection, pig hearts treated with a high dose of AAV9- Sav -shRNA exhibited a 14.3% improvement in ejection fraction (a measure of left ventricular systolic function), evidence of cardiomyocyte division, and reduced scar sizes compared to pigs receiving AAV9-GFP. AAV9- Sav- shRNA-treated pig hearts also displayed increased capillary density and reduced cardiomyocyte ploidy. AAV9- Sav -shRNA gene therapy was well tolerated and did not induce mortality. In addition, liver and lung pathology revealed no tumor formation. Local delivery of AAV9- Sav -shRNA gene therapy to border zone cardiomyocytes in pig hearts after myocardial infarction resulted in tissue renewal and improved function and may have utility in treating heart failure., (Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)
- Published
- 2021
- Full Text
- View/download PDF
32. The SANAD II study of the effectiveness and cost-effectiveness of levetiracetam, zonisamide, or lamotrigine for newly diagnosed focal epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial.
- Author
-
Marson A, Burnside G, Appleton R, Smith D, Leach JP, Sills G, Tudur-Smith C, Plumpton C, Hughes DA, Williamson P, Baker GA, Balabanova S, Taylor C, Brown R, Hindley D, Howell S, Maguire M, Mohanraj R, and Smith PE
- Subjects
- Administration, Oral, Adolescent, Adult, Aged, Child, Female, Humans, Male, Middle Aged, Young Adult, Anticonvulsants adverse effects, Cost-Benefit Analysis, Epilepsies, Partial drug therapy, Lamotrigine therapeutic use, Levetiracetam therapeutic use, Treatment Outcome, Zonisamide therapeutic use
- Abstract
Background: Levetiracetam and zonisamide are licensed as monotherapy for patients with focal epilepsy, but there is uncertainty as to whether they should be recommended as first-line treatments because of insufficient evidence of clinical effectiveness and cost-effectiveness. We aimed to assess the long-term clinical effectiveness and cost-effectiveness of levetiracetam and zonisamide compared with lamotrigine in people with newly diagnosed focal epilepsy., Methods: This randomised, open-label, controlled trial compared levetiracetam and zonisamide with lamotrigine as first-line treatment for patients with newly diagnosed focal epilepsy. Adult and paediatric neurology services across the UK recruited participants aged 5 years or older (with no upper age limit) with two or more unprovoked focal seizures. Participants were randomly allocated (1:1:1) using a minimisation programme with a random element utilising factor to receive lamotrigine, levetiracetam, or zonisamide. Participants and investigators were not masked and were aware of treatment allocation. SANAD II was designed to assess non-inferiority of both levetiracetam and zonisamide to lamotrigine for the primary outcome of time to 12-month remission. Anti-seizure medications were taken orally and for participants aged 12 years or older the initial advised maintenance doses were lamotrigine 50 mg (morning) and 100 mg (evening), levetiracetam 500 mg twice per day, and zonisamide 100 mg twice per day. For children aged between 5 and 12 years the initial daily maintenance doses advised were lamotrigine 1·5 mg/kg twice per day, levetiracetam 20 mg/kg twice per day, and zonisamide 2·5 mg/kg twice per day. All participants were included in the intention-to-treat (ITT) analysis. The per-protocol (PP) analysis excluded participants with major protocol deviations and those who were subsequently diagnosed as not having epilepsy. Safety analysis included all participants who received one dose of any study drug. The non-inferiority limit was a hazard ratio (HR) of 1·329, which equates to an absolute difference of 10%. A HR greater than 1 indicated that an event was more likely on lamotrigine. The trial is registered with the ISRCTN registry, 30294119 (EudraCt number: 2012-001884-64)., Findings: 990 participants were recruited between May 2, 2013, and June 20, 2017, and followed up for a further 2 years. Patients were randomly assigned to receive lamotrigine (n=330), levetiracetam (n=332), or zonisamide (n=328). The ITT analysis included all participants and the PP analysis included 324 participants randomly assigned to lamotrigine, 320 participants randomly assigned to levetiracetam, and 315 participants randomly assigned to zonisamide. Levetiracetam did not meet the criteria for non-inferiority in the ITT analysis of time to 12-month remission versus lamotrigine (HR 1·18; 97·5% CI 0·95-1·47) but zonisamide did meet the criteria for non-inferiority in the ITT analysis versus lamotrigine (1·03; 0·83-1·28). The PP analysis showed that 12-month remission was superior with lamotrigine than both levetiracetam (HR 1·32 [97·5% CI 1·05 to 1·66]) and zonisamide (HR 1·37 [1·08-1·73]). There were 37 deaths during the trial. Adverse reactions were reported by 108 (33%) participants who started lamotrigine, 144 (44%) participants who started levetiracetam, and 146 (45%) participants who started zonisamide. Lamotrigine was superior in the cost-utility analysis, with a higher net health benefit of 1·403 QALYs (97·5% central range 1·319-1·458) compared with 1·222 (1·110-1·283) for levetiracetam and 1·232 (1·112, 1·307) for zonisamide at a cost-effectiveness threshold of £20 000 per QALY. Cost-effectiveness was based on differences between treatment groups in costs and QALYs., Interpretation: These findings do not support the use of levetiracetam or zonisamide as first-line treatments for patients with focal epilepsy. Lamotrigine should remain a first-line treatment for patients with focal epilepsy and should be the standard treatment in future trials., Funding: National Institute for Health Research Health Technology Assessment programme., Competing Interests: Declaration of interests AM reports grants from the National Institute for Health Research Health Technology Assessment, during the conduct of the study, as well as grants from UCB Pharma, outside of the submitted work. JPL reports grants from University of Liverpool during the conduct of the study; grants and personal fees from UCB Pharma; and personal fees from Eisai, Janssen CIlag Pharmaceuticals, GW Pharmaceuticals, GSK Pharma, outside of the submitted work. GS reports personal fees from UCB Pharma, Eisai, Arvelle Therapeutics GmbH, outside of the submitted work. CP reports grants from National Institute for Health and Care Research Health Technology Assessment Programme during the conduct of this study. CT reports grants from University of Liverpool during the conduct of the study. DH reports grants from National Institute for Health Research Health Technology Assessment Programme during the conduct of the study. RM reports personal fees from UCB Pharma and grants from UCB Pharma and Sanofi, outside of the submitted work. PES is a member of the NICE Panel for Epilepsy guideline 2021 and is an editor of the journal Practical Neurology. All other authors declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
33. The SANAD II study of the effectiveness and cost-effectiveness of valproate versus levetiracetam for newly diagnosed generalised and unclassifiable epilepsy: an open-label, non-inferiority, multicentre, phase 4, randomised controlled trial.
- Author
-
Marson A, Burnside G, Appleton R, Smith D, Leach JP, Sills G, Tudur-Smith C, Plumpton C, Hughes DA, Williamson P, Baker GA, Balabanova S, Taylor C, Brown R, Hindley D, Howell S, Maguire M, Mohanraj R, and Smith PE
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Anticonvulsants economics, Anticonvulsants therapeutic use, Child, Child, Preschool, Cost-Benefit Analysis, Female, Humans, Male, Middle Aged, Young Adult, Epilepsy, Generalized drug therapy, Levetiracetam economics, Levetiracetam therapeutic use, Valproic Acid economics, Valproic Acid therapeutic use
- Abstract
Background: Valproate is a first-line treatment for patients with newly diagnosed idiopathic generalised or difficult to classify epilepsy, but not for women of child-bearing potential because of teratogenicity. Levetiracetam is increasingly prescribed for these patient populations despite scarcity of evidence of clinical effectiveness or cost-effectiveness. We aimed to compare the long-term clinical effectiveness and cost-effectiveness of levetiracetam compared with valproate in participants with newly diagnosed generalised or unclassifiable epilepsy., Methods: We did an open-label, randomised controlled trial to compare levetiracetam with valproate as first-line treatment for patients with generalised or unclassified epilepsy. Adult and paediatric neurology services (69 centres overall) across the UK recruited participants aged 5 years or older (with no upper age limit) with two or more unprovoked generalised or unclassifiable seizures. Participants were randomly allocated (1:1) to receive either levetiracetam or valproate, using a minimisation programme with a random element utilising factors. Participants and investigators were aware of treatment allocation. For participants aged 12 years or older, the initial advised maintenance doses were 500 mg twice per day for levetiracetam and valproate, and for children aged 5-12 years, the initial daily maintenance doses advised were 25 mg/kg for valproate and 40 mg/kg for levetiracetam. All drugs were administered orally. SANAD II was designed to assess the non-inferiority of levetiracetam compared with valproate for the primary outcome time to 12-month remission. The non-inferiority limit was a hazard ratio (HR) of 1·314, which equates to an absolute difference of 10%. A HR greater than 1 indicated that an event was more likely on valproate. All participants were included in the intention-to-treat (ITT) analysis. Per-protocol (PP) analyses excluded participants with major protocol deviations and those who were subsequently diagnosed as not having epilepsy. Safety analyses included all participants who received one dose of any study drug. This trial is registered with the ISRCTN registry, 30294119 (EudraCt number: 2012-001884-64)., Findings: 520 participants were recruited between April 30, 2013, and Aug 2, 2016, and followed up for a further 2 years. 260 participants were randomly allocated to receive levetiracetam and 260 participants to receive valproate. The ITT analysis included all participants and the PP analysis included 255 participants randomly allocated to valproate and 254 randomly allocated to levetiracetam. Median age of participants was 13·9 years (range 5·0-94·4), 65% were male and 35% were female, 397 participants had generalised epilepsy, and 123 unclassified epilepsy. Levetiracetam did not meet the criteria for non-inferiority in the ITT analysis of time to 12-month remission (HR 1·19 [95% CI 0·96-1·47]); non-inferiority margin 1·314. The PP analysis showed that the 12-month remission was superior with valproate than with levetiracetam. There were two deaths, one in each group, that were unrelated to trial treatments. Adverse reactions were reported by 96 (37%) participants randomly assigned to valproate and 107 (42%) participants randomly assigned to levetiracetam. Levetiracetam was dominated by valproate in the cost-utility analysis, with a negative incremental net health benefit of -0·040 (95% central range -0·175 to 0·037) and a probability of 0·17 of being cost-effectiveness at a threshold of £20 000 per quality-adjusted life-year. Cost-effectiveness was based on differences between treatment groups in costs and quality-adjusted life-years., Interpretation: Compared with valproate, levetiracetam was found to be neither clinically effective nor cost-effective. For girls and women of child-bearing potential, these results inform discussions about benefit and harm of avoiding valproate., Funding: National Institute for Health Research Health Technology Assessment Programme., Competing Interests: Declaration of interests AM reports grants from the National Institute for Health Research Health Technology Assessment, during the conduct of the study, as well as grants from UCB Pharma, outside of the submitted work. JPL reports grants from University of Liverpool during the conduct of the study; grants and personal fees from UCB Pharma; and personal fees from Eisai, Janssen CIlag Pharmaceuticals, GW Pharmaceuticals, GSK Pharma, outside of the submitted work. GS reports personal fees from UCB Pharma, Eisai, Arvelle Therapeutics GmbH, outside of the submitted work. CP reports grants from National Institute for Health Research Health Technology Assessment Programme during the conduct of this study. CT reports grants from the National Institute for Health Research, during the conduct of the study. DH reports grants from National Institute for Health Research Health Technology Assessment Programme during the conduct of the study. RM reports personal fees from UCB Pharma and grants from UCB Pharma and Sanofi, outside of the submitted work. PES is a member of the NICE Panel for Epilepsy guideline 2021 and is an editor of the journal Practical Neurology. All other authors declare no competing interests., (Copyright © 2021 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved.)
- Published
- 2021
- Full Text
- View/download PDF
34. Genomic, epigenomic, and biophysical cues controlling the emergence of the lung alveolus.
- Author
-
Zepp JA, Morley MP, Loebel C, Kremp MM, Chaudhry FN, Basil MC, Leach JP, Liberti DC, Niethamer TK, Ying Y, Jayachandran S, Babu A, Zhou S, Frank DB, Burdick JA, and Morrisey EE
- Subjects
- Alveolar Epithelial Cells cytology, Alveolar Epithelial Cells metabolism, Animals, Cells, Cultured, Cues, Epigenomics, Humans, Mice, Mice, Transgenic, Myofibroblasts cytology, Myofibroblasts metabolism, Pulmonary Alveoli cytology, Pulmonary Alveoli metabolism, RNA-Seq methods, Signal Transduction, Single-Cell Analysis, Transcriptome, Cell Lineage genetics, Epigenesis, Genetic, Pulmonary Alveoli embryology
- Abstract
The lung alveolus is the functional unit of the respiratory system required for gas exchange. During the transition to air breathing at birth, biophysical forces are thought to shape the emerging tissue niche. However, the intercellular signaling that drives these processes remains poorly understood. Applying a multimodal approach, we identified alveolar type 1 (AT1) epithelial cells as a distinct signaling hub. Lineage tracing demonstrates that AT1 progenitors align with receptive, force-exerting myofibroblasts in a spatial and temporal manner. Through single-cell chromatin accessibility and pathway expression (SCAPE) analysis, we demonstrate that AT1-restricted ligands are required for myofibroblasts and alveolar formation. These studies show that the alignment of cell fates, mediated by biophysical and AT1-derived paracrine signals, drives the extensive tissue remodeling required for postnatal respiration., (Copyright © 2021 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.)
- Published
- 2021
- Full Text
- View/download PDF
35. A steroid receptor coactivator stimulator (MCB-613) attenuates adverse remodeling after myocardial infarction.
- Author
-
Mullany LK, Rohira AD, Leach JP, Kim JH, Monroe TO, Ortiz AR, Stork B, Gaber MW, Sarkar P, Sikora AG, Rosengart TK, York B, Song Y, Dacso CC, Lonard DM, Martin JF, and O'Malley BW
- Subjects
- Animals, Cell Differentiation drug effects, Fibroblasts drug effects, Fibroblasts metabolism, Fibroblasts pathology, Fibrosis, Heart Function Tests, Inflammation pathology, Macrophages drug effects, Macrophages pathology, Mice, Myocardial Infarction genetics, Myocardial Infarction pathology, RAW 264.7 Cells, RNA genetics, RNA metabolism, Transcription, Genetic drug effects, Cyclohexanones pharmacology, Myocardial Infarction physiopathology, Pyridines pharmacology, Receptors, Steroid metabolism, Ventricular Remodeling drug effects
- Abstract
Progressive remodeling of the heart, resulting in cardiomyocyte (CM) loss and increased inflammation, fibrosis, and a progressive decrease in cardiac function, are hallmarks of myocardial infarction (MI)-induced heart failure. We show that MCB-613, a potent small molecule stimulator of steroid receptor coactivators (SRCs) attenuates pathological remodeling post-MI. MCB-613 decreases infarct size, apoptosis, hypertrophy, and fibrosis while maintaining significant cardiac function. MCB-613, when given within hours post MI, induces lasting protection from adverse remodeling concomitant with: 1) inhibition of macrophage inflammatory signaling and interleukin 1 (IL-1) signaling, which attenuates the acute inflammatory response, 2) attenuation of fibroblast differentiation, and 3) promotion of Tsc22d3-expressing macrophages-all of which may limit inflammatory damage. SRC stimulation with MCB-613 (and derivatives) is a potential therapeutic approach for inhibiting cardiac dysfunction after MI., Competing Interests: The authors declare no competing interest., (Copyright © 2020 the Author(s). Published by PNAS.)
- Published
- 2020
- Full Text
- View/download PDF
36. Managing epilepsy in Ramadan: Guidance for healthcare providers and patients.
- Author
-
Mahmood A, Abbasi HN, Ghouri N, Mohammed R, and Leach JP
- Subjects
- Adult, Anticonvulsants therapeutic use, Disease Management, Epilepsy ethnology, Health Personnel psychology, Humans, Epilepsy psychology, Epilepsy therapy, Fasting physiology, Fasting psychology, Islam psychology
- Abstract
Ramadan is a regularly recurring period of fasting that takes place in the ninth month of the Islamic calendar. For this period, adult Muslims refrain from eating and drinking between dawn and sunset. The variation in summer daylight hours means that at temperate latitudes, fasting can last up to 20 h. It is already recognized that epilepsy control can deteriorate during Ramadan, and this may be explained by fasting-related changes to adherence to antiseizure drug regimes. This article provides specific advice to help Muslim patients prepare for Ramadan and reduce chances of exacerbation in epilepsy. In addition to advice around sleep hygiene, it explores the use of drugs or preparations of drugs that will demonstrate reduced variation during periods of fasting., Competing Interests: Declaration of competing interest The authors declare that none of the authors of this paper have any competing financial interests or personal relationships that they would wish to declare., (Copyright © 2020 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
37. Effectiveness and tolerability of adjunctive brivaracetam in patients with focal seizures: Second interim analysis of 6-month data from a prospective observational study in Europe.
- Author
-
Steinhoff BJ, Christensen J, Doherty CP, Majoie M, De Backer M, Hellot S, Leunikava I, and Leach JP
- Subjects
- Adolescent, Adult, Drug Therapy, Combination methods, Epilepsies, Partial drug therapy, Female, Humans, Male, Middle Aged, Quality of Life, Young Adult, Anticonvulsants therapeutic use, Epilepsy drug therapy, Pyrrolidinones pharmacology, Seizures drug therapy
- Abstract
Brivaracetam (BRV) is indicated for adjunctive treatment of focal (partial-onset) seizures with or without secondary generalisation in patients 4 years of age and older in the European Union (EU). An ongoing 12-month, prospective, non-interventional post-marketing study (EP0077; NCT02687711) is collecting real-world information on patients receiving treatment with adjunctive BRV in Europe. In this study, BRV is prescribed according to routine clinical practice and the EU Summary of Product Characteristics. This second interim analysis assessed effectiveness, tolerability and health-related quality of life outcomes for up to 6 months of treatment. At the cut-off date (13 April 2018), 266 patients from five countries had attended Visit 1, 24.1 % (64/266) had completed the study, 37.6 % (100/266) were ongoing, and 38.3 % (102/266) had discontinued. In total, 261 patients had at least one dose of BRV and were included in the analyses. Patients had a mean time since epilepsy diagnosis of 23.2 years, a mean of eight lifetime AEDs (sum of AEDs discontinued prior to study entry and concomitant at study entry), and a median of five focal seizures per 28 days during the 3-month retrospective Baseline. 66.3 % of patients initiated BRV at a dose within the recommended starting range (50-100 mg/day) and 87.1 % of patients received BRV modal doses within the recommended dose range (50-200 mg/day) during the study. Retention rates were 79.1 % (N = 239) at 3 months and 62.1 % (N = 211) at 6 months. The 50 % responder rates for focal seizures were 46.8 % (N = 139) at 3 months and 53.6 % (N = 97) at 6 months. The proportions of patients who were seizure-free were 10.7 % (21/196) and 7.5 % (15/199) at 3 and 6 months of treatment, respectively. Median percent reductions in focal seizure frequency per 28 days from Baseline to 3 and 6 months were 34.6 % (N = 139) and 53.3 % (N = 97), respectively. Overall, 44.2 % of patients had an improvement and 15.4 % had a worsening in Patient Weighted Quality of Life in Epilepsy Inventory-Form 31 total score from Baseline to 6 months (N = 52). At least one treatment-emergent adverse event (TEAE) was reported in 51.0 % (133/261) of patients, and 34.5 % (90/261) of patients had drug-related TEAEs. The most common drug-related TEAEs (≥5% of patients) were drug ineffective (7.7 %), seizure (6.5 %), and fatigue (6.1 %). In this 6-month interim analysis, BRV showed effectiveness when used in clinical practice in five European countries. BRV was well tolerated, and no new safety signals were observed., (Copyright © 2020 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
38. Study protocol for a pragmatic randomised controlled trial comparing the effectiveness and cost-effectiveness of levetiracetam and zonisamide versus standard treatments for epilepsy: a comparison of standard and new antiepileptic drugs (SANAD-II).
- Author
-
Balabanova S, Taylor C, Sills G, Burnside G, Plumpton C, Smith PEM, Appleton R, Leach JP, Johnson M, Baker G, Pirmohamed M, Hughes DA, Williamson PR, Tudur-Smith C, and Marson AG
- Subjects
- Carbamazepine therapeutic use, Child, Child, Preschool, Clinical Trials as Topic, Cost-Benefit Analysis, Humans, Levetiracetam therapeutic use, Multicenter Studies as Topic, Pragmatic Clinical Trials as Topic, Quality of Life, Randomized Controlled Trials as Topic, State Medicine, Zonisamide therapeutic use, Anticonvulsants therapeutic use, Epilepsy drug therapy
- Abstract
Introduction: Antiepileptic drugs (AEDs) are the mainstay of epilepsy treatment. Over the past 20 years, a number of new drugs have been approved for National Health Service (NHS) use on the basis of information from short-term trials that demonstrate efficacy. These trials do not provide information about the longer term outcomes, which inform treatment policy. This trial will assess the long-term clinical and cost-effectiveness of the newer treatment levetiracetam and zonisamide., Methods and Analysis: This is a phase IV, multicentre, open-label, randomised, controlled clinical trial comparing new and standard treatments for patients with newly diagnosed epilepsy. Arm A of the trial randomised 990 patients with focal epilepsy to standard AED lamotrigine or new AED levetiracetam or zonisamide. Arm B randomised 520 patients with generalised epilepsy to standard AED sodium valproate or new AED levetiracetam. Patients are recruited from UK NHS outpatient epilepsy, general neurology and paediatric clinics. Included patients are aged 5 years or older with two or more spontaneous seizures requiring AED monotherapy, who are not previously treated with AEDs. Patients are followed up for a minimum of 2 years. The primary outcome is time to 12-month remission from seizures. Secondary outcomes include time to treatment failure (including due to inadequate seizure control or unacceptable adverse reactions); time to first seizure; time to 24-month remission; adverse reactions and quality of life. All primary analyses will be on an intention to treat basis. Separate analyses will be undertaken for each arm. Health economic analysis will be conducted from the perspective of the NHS to assess the cost-effectiveness of each AED., Ethics and Dissemination: This trial has been approved by the North West-Liverpool East REC (Ref. 12/NW/0361). The trial team will disseminate the results through scientific meetings, peer-reviewed publications and patient and public involvement., Trial Registration Numbers: EudraCT 2012-001884-64; ISRCTN30294119., Competing Interests: Competing interests: None declared., (© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY. Published by BMJ.)
- Published
- 2020
- Full Text
- View/download PDF
39. Direct Comparison of Mononucleated and Binucleated Cardiomyocytes Reveals Molecular Mechanisms Underlying Distinct Proliferative Competencies.
- Author
-
Windmueller R, Leach JP, Babu A, Zhou S, Morley MP, Wakabayashi A, Petrenko NB, Viatour P, and Morrisey EE
- Subjects
- Animals, Animals, Newborn, Base Sequence, Cell Nucleus ultrastructure, Cell Proliferation, Cell Separation, Down-Regulation genetics, E2F Transcription Factors metabolism, Flow Cytometry, G1 Phase, Mice, Knockout, Myocytes, Cardiac ultrastructure, Proto-Oncogene Proteins metabolism, Regeneration, Retinoblastoma Protein metabolism, S Phase, Cell Nucleus metabolism, Myocytes, Cardiac cytology, Myocytes, Cardiac metabolism
- Abstract
The mammalian heart is incapable of regenerating a sufficient number of cardiomyocytes to ameliorate the loss of contractile muscle after acute myocardial injury. Several reports have demonstrated that mononucleated cardiomyocytes are more responsive than are binucleated cardiomyocytes to pro-proliferative stimuli. We have developed a strategy to isolate and characterize highly enriched populations of mononucleated and binucleated cardiomyocytes at various times of development. Our results suggest that an E2f/Rb transcriptional network is central to the divergence of these two populations and that remnants of the differences acquired during the neonatal period remain in adult cardiomyocytes. Moreover, inducing binucleation by genetically blocking the ability of cardiomyocytes to complete cytokinesis leads to a reduction in E2f target gene expression, directly linking the E2f pathway with nucleation. These data identify key molecular differences between mononucleated and binucleated mammalian cardiomyocytes that can be used to leverage cardiomyocyte proliferation for promoting injury repair in the heart., Competing Interests: Declaration of Interests The authors declare no competing interests., (Copyright © 2020 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
40. Long-term mortality of patients admitted to an intensive care unit with seizures: a population-based study.
- Author
-
Moss L, Henderson M, Puxty A, Shaw M, Leach JP, McPeake J, and Quasim T
- Subjects
- Cohort Studies, Humans, Seizures, Intensive Care Units, Status Epilepticus
- Published
- 2020
- Full Text
- View/download PDF
41. Defining the role of pulmonary endothelial cell heterogeneity in the response to acute lung injury.
- Author
-
Niethamer TK, Stabler CT, Leach JP, Zepp JA, Morley MP, Babu A, Zhou S, and Morrisey EE
- Subjects
- Animals, Endothelium pathology, Endothelium, Vascular cytology, Endothelium, Vascular pathology, Female, Flow Cytometry, Lung pathology, Mice, Mice, Inbred C57BL, Neovascularization, Physiologic, Orthomyxoviridae Infections pathology, Pulmonary Alveoli cytology, Pulmonary Alveoli pathology, Single-Cell Analysis, Acute Lung Injury pathology, Endothelium cytology, Lung cytology
- Abstract
Pulmonary endothelial cells (ECs) are an essential component of the gas exchange machinery of the lung alveolus. Despite this, the extent and function of lung EC heterogeneity remains incompletely understood. Using single-cell analytics, we identify multiple EC populations in the mouse lung, including macrovascular endothelium (maEC), microvascular endothelium (miECs), and a new population we have termed Car4 -high ECs. Car4 -high ECs express a unique gene signature, and ligand-receptor analysis indicates they are primed to receive reparative signals from alveolar type I cells. After acute lung injury, they are preferentially localized in regenerating regions of the alveolus. Influenza infection reveals the emergence of a population of highly proliferative ECs that likely arise from multiple miEC populations and contribute to alveolar revascularization after injury. These studies map EC heterogeneity in the adult lung and characterize the response of novel EC subpopulations required for tissue regeneration after acute lung injury., Competing Interests: TN, CS, JL, JZ, MM, AB, SZ No competing interests declared, EM Reviewing editor, eLife, (© 2020, Niethamer et al.)
- Published
- 2020
- Full Text
- View/download PDF
42. The view of the clinician and the scientist on the family experience of sudden epilepsy deaths.
- Author
-
Thomas RH, Craig DP, and Leach JP
- Subjects
- Awareness, Humans, Risk Factors, Emotions, Family psychology, Medical Laboratory Personnel psychology, Physician's Role psychology, Sudden Unexpected Death in Epilepsy
- Abstract
A sudden epilepsy-associated death is a tragedy for the bereaved, a failure for the clinician and a challenge for a research scientist. Sudden death in epilepsy cannot be truly anticipated or prepared for by the bereaved, or the clinical team. Communications and provision of pastoral care following sudden unexpected death in epilepsy (SUDEP) is an important part of an epilepsy service where interaction with the family and specialist services for the bereaved can be rewarding. Sudden death and SUDEP are valid targets for research attention, but families may be less aware of opportunities to assist in life science research or conversely feel coerced at a vulnerable time. We have a responsibility to ensure that the SUDEP risk is minimized and that we maximize the learning potential from each death. Out of such tragedies some good must come, but this will take combined efforts from doctors, families, and the voluntary sector acting in league with scientific and academic funders. In this review, we set out to consider the dual viewpoints of the clinician and the scientist and how they consider the family experience of sudden deaths to provide advice for all parties. "This paper is for the Special Issue: Prevent 21: SUDEP Summit - Time to Listen"., Competing Interests: Declaration of competing interest RHT has received honoraria and meeting support from Bial, Eisai, GW Pharma, LivaNova, Sanofi, UCB Pharma, and Zogenix. He has a research contract with SUDEP Action to study the Epilepsy Deaths Register but receives no fee for this. DC has received honoraria from UCB Pharma. JPL has received honoraria and meeting support from GSK, Eisai, GW Pharma, Sanofi, and UCB Pharma. He has had an unrestricted research grant from UCB Pharma., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
43. Quarantining the OSCE: reflections on the Glasgow experience.
- Author
-
Noonan Z, Boyle JG, Pope L, Ditchfield C, Leach JP, and McDowall S
- Subjects
- Humans, Clinical Competence, Educational Measurement
- Published
- 2020
- Full Text
- View/download PDF
44. Drug withdrawal in the epilepsy monitoring unit - The patsalos table.
- Author
-
Kirby J, Leach VM, Brockington A, Patsalos P, Reuber M, and Leach JP
- Subjects
- Electroencephalography methods, Epilepsy physiopathology, Humans, Substance Withdrawal Syndrome physiopathology, Anticonvulsants administration & dosage, Epilepsy diagnosis, Epilepsy drug therapy, Monitoring, Physiologic methods, Preoperative Care methods, Substance Withdrawal Syndrome diagnosis
- Abstract
Investigation of possible candidates for epilepsy surgery will usually require inpatient EEG to capture seizures and allow full operative planning. Withdrawal of antiepileptic drugs increases the yield of this valuable diagnostic information and the benefits of this should justify any increase in the risk of harm associated with these seizures This paper outlines our opinion on what would constitute proposed best practice for management of antiepileptic drug (AED) dosing when patients are admitted for monitoring of seizures to an epilepsy monitoring unit (EMU). In the vast majority of cases EMU admissions are safe and, even if seizures occur, will pass off without complication. Previous guidance has concentrated on ensuring practice around technical aspects of EEG monitoring itself and staffing within the unit. In this guidance we aim to outline optimally safe ways of ensuring that EMUs ensure the minimisation of risk to the patients admitted under their care. We propose an algorithm for enhancing the safety of AED withdrawal in VT admissions while ensuring adequate seizure yields. Risk minimisation requires planned management of drug dosing (with reduction if appropriate), provision of adequate rescue medication, and adequate supervision to allow rapid response to generalised seizures. This algorithm is accompanied by a table which uses knowledge of the clinical and pharmacological properties of each AED to ensure dose withdrawal and reduction is timely and safe taking into account the severity and frequency of the individual's seizures., (Copyright © 2019 British Epilepsy Association. All rights reserved.)
- Published
- 2020
- Full Text
- View/download PDF
45. Neurological Scottish neologisms.
- Author
-
Leach JP, Dani K, MacDougall NJ, Gallagher P, and Newman EJ
- Subjects
- Humans, Nervous System Diseases classification, Nervous System Diseases diagnosis, Nervous System Diseases epidemiology, Scotland epidemiology, Names, Neurology classification, Wit and Humor as Topic
- Abstract
Competing Interests: Competing interests: None declared.
- Published
- 2019
- Full Text
- View/download PDF
46. Long-range Pitx2c enhancer-promoter interactions prevent predisposition to atrial fibrillation.
- Author
-
Zhang M, Hill MC, Kadow ZA, Suh JH, Tucker NR, Hall AW, Tran TT, Swinton PS, Leach JP, Margulies KB, Ellinor PT, Li N, and Martin JF
- Subjects
- Animals, CRISPR-Cas Systems, Chromosome Mapping, Epigenesis, Genetic, Genome-Wide Association Study, Mice, Mice, Knockout, Homeobox Protein PITX2, Atrial Fibrillation genetics, Enhancer Elements, Genetic, Genetic Predisposition to Disease, Homeodomain Proteins genetics, Promoter Regions, Genetic, Transcription Factors genetics
- Abstract
Genome-wide association studies found that increased risk for atrial fibrillation (AF), the most common human heart arrhythmia, is associated with noncoding sequence variants located in proximity to PITX2 Cardiomyocyte-specific epigenomic and comparative genomics uncovered 2 AF-associated enhancers neighboring PITX2 with varying conservation in mice. Chromosome conformation capture experiments in mice revealed that the Pitx2c promoter directly contacted the AF-associated enhancer regions. CRISPR/Cas9-mediated deletion of a 20-kb topologically engaged enhancer led to reduced Pitx2c transcription and AF predisposition. Allele-specific chromatin immunoprecipitation sequencing on hybrid heterozygous enhancer knockout mice revealed that long-range interaction of an AF-associated region with the Pitx2c promoter was required for maintenance of the Pitx2 c promoter chromatin state. Long-range looping was mediated by CCCTC-binding factor (CTCF), since genetic disruption of the intronic CTCF-binding site caused reduced Pitx2c expression, AF predisposition, and diminished active chromatin marks on Pitx2 AF risk variants located at 4q25 reside in genomic regions possessing long-range transcriptional regulatory functions directed at PITX2 ., Competing Interests: Competing interest statement: P.T.E. is supported by a grant from Bayer AG to the Broad Institute focused on the genetics and therapeutics of cardiovascular disease and has consulted for Bayer AG, Novartis, and Quest Diagnostics. J.F.M. is a founder and owns shares in Yap Therapeutics.
- Published
- 2019
- Full Text
- View/download PDF
47. Hiding in Plain Sight: Functional Neurological Disorders in the News.
- Author
-
Popkirov S, Nicholson TR, Bloem BR, Cock HR, Derry CP, Duncan R, Dworetzky BA, Edwards MJ, Espay AJ, Hallett M, Lang AE, Leach JP, Lehn A, McGonigal A, Morgante F, Perez DL, Reuber M, Richardson MP, Smith P, Stamelou M, Tijssen MAJ, Tinazzi M, Carson AJ, and Stone J
- Subjects
- Adolescent, Adult, Epilepsy psychology, Female, Humans, Male, Movement Disorders psychology, Awareness, Epilepsy epidemiology, Mass Media, Movement Disorders epidemiology
- Abstract
Objective: Functional movement and seizure disorders are still widely misunderstood and receive little public and academic attention. This is in stark contrast to their high prevalence and levels of associated disability. In an exploratory observational study, the authors examined whether the relative lack of media coverage of functional neurological disorders is in part due to misidentification in "human interest" news stories., Methods: Thirteen recent news stories from high-impact English-language media outlets that portrayed patients with complex symptoms either attributed to other diagnoses or presented as medical mysteries were identified using online keyword searches. All selected news stories contained video or still images displaying relevant symptoms. Cases were categorized into movement disorders or seizure disorders and were then independently assessed by 10 respective expert raters. For each category, one story of a patient whose symptoms were due to a well-recognized neurological disease was also included. Both the diagnostic category and the respective confidence level were reported by each rater for each case. The interrater agreement was calculated for each group of disorders., Results: The raters confirmed almost unanimously that all presented news stories except the negative control cases portrayed misidentified functional movement or seizure disorders. The interrater agreement and average diagnostic confidence were high., Conclusions: Functional neurological disorders are often wrongly considered a rare medical curiosity of the past. However, these findings suggest that, while they are largely absent from public discourse, they often appear in the news incognito, hiding in plain sight.
- Published
- 2019
- Full Text
- View/download PDF
48. Low serum magnesium and 1-year mortality in alcohol withdrawal syndrome.
- Author
-
Maguire D, Ross DP, Talwar D, Forrest E, Naz Abbasi H, Leach JP, Woods M, Zhu LY, Dickson S, Kwok T, Waterson I, Benson G, Scally B, Young D, and McMillan DC
- Subjects
- Adult, Age Factors, Aged, Aged, 80 and over, Alanine Transaminase blood, Alkaline Phosphatase blood, Aspartate Aminotransferases blood, Benzodiazepines therapeutic use, Bilirubin blood, C-Reactive Protein metabolism, Female, Humans, Logistic Models, Magnesium Deficiency epidemiology, Male, Middle Aged, Multivariate Analysis, Platelet Count, Prognosis, Proton Pump Inhibitors therapeutic use, Retrospective Studies, Risk Factors, Scotland epidemiology, Serum Albumin metabolism, Severity of Illness Index, Sodium blood, Substance Withdrawal Syndrome drug therapy, Substance Withdrawal Syndrome epidemiology, Substance Withdrawal Syndrome etiology, Young Adult, Central Nervous System Depressants adverse effects, Ethanol adverse effects, Magnesium blood, Magnesium Deficiency blood, Mortality, Substance Withdrawal Syndrome blood
- Abstract
Background: In 2014, the WHO reported that 6% of all deaths were attributable to excess alcohol consumption. The aim of the present study was to examine the relationship between serum magnesium concentrations and mortality in patients with alcohol withdrawal syndrome (AWS)., Materials and Methods: A retrospective review of 700 patients with documented evidence of previous AWS indicating a requirement for benzodiazepine prophylaxis or evidence of alcohol withdrawal syndrome between November 2014 and March 2015., Results: Of 380 patients included in the sample analysis, 64 (17%) were dead at 1 year following the time of treatment for AWS. The majority of patients had been prescribed thiamine (77%) and a proton pump inhibitor (66%). In contrast, the majority of patients had low circulating magnesium concentrations (<0.75 mmol/L) (64%) and had not been prescribed magnesium (90%). The median age of death at one year was 55 years (P = 0.002). On univariate analysis, age (P < 0.05), GMAWS (P < 0.05), BDZ (P < 0.05), bilirubin (P < 0.001), alkaline phosphatase (P < 0.001), albumin (P < 0.001), CRP (P < 0.05), AST:ALT ratio >2 (P < 0.001), sodium (P < 0.05), magnesium (P < 0.001), platelets (P < 0.05) and the use of proton pump inhibitor medication (P < 0.001) were associated with death at 1 year. On multivariate binary logistic regression analysis, age > 50 years (OR 3.37, 95% CI 1.52-7.48, P < 0.01), AST:ALT ratio >2 (OR 3.10, 95% CI 1.38-6.94, P < 0.01) and magnesium < 0.75 mmol/L (OR 4.11, 95% CI 1.3-12.8, P < 0.05) remained independently associated with death at 1 year., Conclusion: Overall, 1-year mortality was significantly higher among those patients who were magnesium deficient (<0.75 mmol/L) when compared to those who were replete (≥0.75 mmol/L; P < 0.001)., (© 2019 Stichting European Society for Clinical Investigation Journal Foundation.)
- Published
- 2019
- Full Text
- View/download PDF
49. YAP Partially Reprograms Chromatin Accessibility to Directly Induce Adult Cardiogenesis In Vivo.
- Author
-
Monroe TO, Hill MC, Morikawa Y, Leach JP, Heallen T, Cao S, Krijger PHL, de Laat W, Wehrens XHT, Rodney GG, and Martin JF
- Subjects
- Action Potentials, Animals, Cardiomegaly pathology, Cardiomegaly physiopathology, Cell Cycle, Cell Cycle Proteins, Cell Lineage, Cell Proliferation, Diploidy, Enhancer Elements, Genetic genetics, Gain of Function Mutation genetics, Gene Expression Regulation, Developmental, Heart Ventricles anatomy & histology, Mice, Transgenic, Myocytes, Cardiac cytology, Myocytes, Cardiac metabolism, Promoter Regions, Genetic genetics, Transcription Factor AP-1 metabolism, Transgenes, YAP-Signaling Proteins, Adaptor Proteins, Signal Transducing metabolism, Aging physiology, Chromatin metabolism, Heart growth & development, Organogenesis genetics, Phosphoproteins metabolism
- Abstract
Specialized adult somatic cells, such as cardiomyocytes (CMs), are highly differentiated with poor renewal capacity, an integral reason underlying organ failure in disease and aging. Among the least renewable cells in the human body, CMs renew approximately 1% annually. Consistent with poor CM turnover, heart failure is the leading cause of death. Here, we show that an active version of the Hippo pathway effector YAP, termed YAP5SA, partially reprograms adult mouse CMs to a more fetal and proliferative state. One week after induction, 19% of CMs that enter S-phase do so twice, CM number increases by 40%, and YAP5SA lineage CMs couple to pre-existing CMs. Genomic studies showed that YAP5SA increases chromatin accessibility and expression of fetal genes, partially reprogramming long-lived somatic cells in vivo to a primitive, fetal-like, and proliferative state., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
50. Refractory status epilepticus in adults admitted to ITU in Glasgow 1995-2013 a longitudinal audit highlighting the need for action for provoked and unprovoked status epilepticus.
- Author
-
Abbasi H and Leach JP
- Subjects
- Adolescent, Adult, Aged, Aged, 80 and over, Female, Humans, Intensive Care Units statistics & numerical data, Longitudinal Studies, Male, Middle Aged, Scotland epidemiology, Status Epilepticus diagnosis, Status Epilepticus mortality, Substance-Related Disorders mortality, Young Adult, Status Epilepticus epidemiology, Status Epilepticus etiology, Substance-Related Disorders complications, Substance-Related Disorders epidemiology
- Abstract
Purpose: Our primary objective was to determine incidence of status epilepticus in adults admitted to 5 ITU settings in Glasgow over 18 years. We wanted to investigate if there are any change in causes and outcomes of SE over last decade. We also compared outcomes of De Novo statuts Epilpeticus (DNSE) and Stauts Epilepticus in patients with previous Epilepsy (SEPE)., Methods: The NHS GGC Research Ethics Committee gave permission for this study to continue without a full ethics submission. Between 2013 and 2016, coding records were searched across NHS Greater Glasgow and Clyde for adults over the age of 16 years admitted to an Intensive Care Facility in any of the hospitals in Glasgow., Results: 633 cases were included in study. Cases were separated depending on whether there had been previous epilepsy (SEPE n = 214) or De Novo Status Epilepticus (DNSE, n = 419). Causes in both groups were listed, with 52% of those with DNSE having some contribution from substance misuse. In SEPE, this was felt to play a role in 33.7%. Duration of stay in both groups was similar, but the longest in-patient stays were in the DNSE group. Admission mortality was significantly higher in DNSE than in SEPE (13.8% versus 7.5%). This mortality risk was most closely associated with substance misuse in the group with DNSE., Conclusion: DNSE has a worse prognosis than SEPE. A presentation with DNSE is sign of a system in peril, even where episodes are provoked by alcohol and or drug use. Such episodes should spark off a chain of multispecialty care in order to address this recurring and persisting public health catastrophe., (Copyright © 2019 British Epilepsy Association. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.