1,656 results match your criteria: "The National Hospital for Neurology and Neurosurgery.[Affiliation]"

Unlabelled: Congenital titinopathy has recently emerged as one of the most common congenital muscle disorders.

Objective: To better understand the presentation and clinical needs of the under-characterized extreme end of the congenital titinopathy severity spectrum.

Methods: We comprehensively analyzed the clinical, imaging, pathology, autopsy, and genetic findings in 15 severely affected individuals from 11 families.

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Aims: To discuss the role of screening and treatment of affective symptoms, like anxiety and depression in patients with LUTD. A review of the literature regarding the bidirectional association and multidisciplinary approaches integrating psychometric assessments with personalized treatment plans to improve diagnostic accuracy and therapeutic outcomes of LUTD.

Methods: This review summarizes discussions and a narrative review of (recent) literature during an International Consultation on Incontinence-Research Society 2024 research proposal with respect to the role of screening for anxiety and depression, effect of mental health symptoms on treatment outcomes and future implications.

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Recent Advances in the Genetics of Ataxias: An Update on Novel Autosomal Dominant Repeat Expansions.

Curr Neurol Neurosci Rep

January 2025

Department of Neurology and Neurosurgery, Montreal Neurological Hospital and Institute, McGill University, Montreal, QC, Canada.

Purpose Of Review: Autosomal dominant cerebellar ataxias, also known as spinocerebellar ataxias (SCAs), are genetically and clinically diverse neurodegenerative disorders characterized by progressive cerebellar dysfunction. Despite advances in sequencing technologies, a large proportion of patients with SCA still lack a definitive genetic diagnosis. The advent of advanced bioinformatic tools and emerging genomics technologies, such as long-read sequencing, offers an unparalleled opportunity to close the diagnostic gap for hereditary ataxias.

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Context: Improved continence outcomes are reliant on identification of unmet need, education delivery, and shared decision-making. The evidence base on which to derive innovative approaches in these areas was unclear.

Methods: A debate held at the International Consultation on Incontinence-Research Society meeting, held in Bristol in June 2024, considered ways to improve research requirements to advance these areas.

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Dominantly inherited intronic GAA repeat expansions in the fibroblast growth factor 14 gene have recently been shown to cause spinocerebellar ataxia 27B. Currently, the pathogenic threshold of (GAA) repeat units is considered highly penetrant, while (GAA) is likely pathogenic with reduced penetrance. This study investigated the frequency of the GAA repeat expansion and the phenotypic profile in a Cypriot cohort with unresolved late-onset cerebellar ataxia.

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Inherited prion diseases (IPD) secondary to mutations of the prion protein gene, exhibit diverse clinical phenotypes, capable of mimicking numerous primary neurodegenerative conditions. We describe the clinical phenotype and neuropathological findings in a family from County Limerick in Ireland presenting with Alzheimer's disease-like cognitive decline and motor symptoms caused by a novel missense mutation of This mutation occurs in the central lysine cluster (CLC; codon 101-110), resulting in substitution of threonine with isoleucine at codon 107 (T107I). This case series highlights that IPD can be hard to distinguish from overlapping clinical syndromes seen in other neurodegenerative diseases.

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Background: Orthostatic headache (OH) is a common feature of various conditions, including spontaneous intracranial hypotension (SIH), but no precise definition currently exists outlining the typical OH characteristics. This ambiguity risks misdiagnosis with unnecessary investigations and delay in institution of treatment. The present study aimed to carry out structured phenotyping of OH in patients with SIH with the aim of outlining its typical characteristics.

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Voxel-based lesion symptom mapping localizes residual visual function in hemianopia.

J Neurosci

January 2025

Wellcome Centre for Integrative Neuroimaging; Nuffield Department of Clinical Neuroscience, University of Oxford.

Damage to the primary visual cortex (V1) results in visual field deficits on the contralateral side of the world corresponding to the damaged region. Patients with such loss nonetheless show varying residual vision within this apparently blind region, with the neural mechanisms underlying this ability obscured by small study populations. We identified lesions on structural scans from 39 patients (12 female) with hemianopia and occipital lobe damage.

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Individuals who sustain a concussion can experience a range of symptoms which can significantly impact their quality of life and functional outcome. This study aims to understand the nature and recovery trajectories of post-concussion symptomatology by applying an unsupervised machine learning approach to data captured from a digital health intervention (HeadOn). As part of the 35-day program, patients complete a daily symptom diary which rates 8 post-concussion symptoms.

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VGLL-fusions define a new class of intraparenchymal CNS schwannoma.

Neuro Oncol

December 2024

Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt Universität zu Berlin, Institut für Neuropathologie, Charitéplatz 1, 10117 Berlin, Germany.

Background: Intracerebral schwannomas are rare tumors resembling their peripheral nerve sheath counterparts but localized in the CNS. They are not classified as a separate tumor type in the 2021 WHO classification. This study aimed to compile and characterize these rare neoplasms morphologically and molecularly.

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Background: ATX-FGF/SCA27A has been exclusively associated with heterozygous variants in the FGF14 gene, presenting with postural tremor, slowly progressive cerebellar ataxia, and psychiatric and behavioral disturbances.

Objectives: This study describes the first case of ATX-FGF/SCA27A linked to a biallelic frameshift variant in the FGF14 gene.

Methods: Whole-exome sequencing (WES) was conducted using the Illumina NovaSeq 6000 platform, and the identified variant was confirmed using Sanger sequencing.

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Systematic Evaluation of Lower Urinary Tract Sensations to Improve Management of LUTS: ICI-RS 2024.

Neurourol Urodyn

December 2024

Patrick G. Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, Northern Ireland, UK.

Aims: Lower urinary tract (LUT) sensations form an essential part of diagnostic criteria for many LUT symptoms, additionally LUT sensations are used to evaluate the effectivity of therapeutic interventions. The accurate measurement of LUT sensations, however, is severely hampered by the subjective nature of these sensations.

Methods: This paper summarizes the discussions from the 2024 meeting of the International Consultation for Incontinence-Research Society (ICI-RS 2024) regarding systematic evaluations of LUT sensations and the design of more objective tools to measure these.

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What do we really know about the external urethral sphincter?

Continence (Amst)

June 2024

University of Bristol, School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, Bristol BS8 1TD, UK.

The external urethral sphincter (EUS), composed of skeletal muscle, along with a smooth muscle-lined internal urethral sphincter (IUS), have crucial roles in maintaining continence during bladder filling and facilitating urine flow during voiding. Disruption of this complex activity has profound consequences on normal lower urinary tract function during the micturition cycle. However, relatively little is known about the normal and pathological functions of these particular muscle types, how activity can be manipulated and regulated and why, for example, loss of EUS function and sarcopenia is associated with ageing.

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Mitochondrial DNA (mtDNA) encodes genes essential for oxidative phosphorylation. The m.3243A>G mutation causes severe disease, including myopathy, lactic acidosis and stroke-like episodes (MELAS) and is the most common pathogenic mtDNA mutation in humans.

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Over the past two decades there has been increased interest in orphan drug development for rare diseases. However, hurdles to clinical trial design for these disorders remain. This phase 1a/1b study addressed several challenges, while evaluating the safety and tolerability of the novel oral molecule KL1333 in healthy volunteers and subjects with primary mitochondrial disease.

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Article Synopsis
  • A significant number of patients with cardiomyopathy have undetermined genetic causes, prompting researchers to analyze mtDNA variants in these cases through the 100,000 genomes project.
  • The study scrutinized 1,363 genomes, identifying the pathogenic MT-TI m.4300A>G variant in four hypertrophic cardiomyopathy patients who had previously been undiagnosed, representing 0.6% of HCM cases without a known genetic cause.
  • Findings suggest that MT-TI should be included in the initial genetic testing for non-syndromic hypertrophic cardiomyopathy to aid in diagnosing patients.
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Diagnosis and management of status epilepticus: improving the status quo.

Lancet Neurol

January 2025

Division of Epilepsy and Clinical Neurophysiology, Boston Children's Hospital, Harvard Medical School, Boston, MA, USA.

Status epilepticus is a common neurological emergency that is characterised by prolonged or recurrent seizures without recovery between episodes and associated with substantial morbidity and mortality. Prompt recognition and targeted therapy can reduce the risk of complications and death associated with status epilepticus, thereby improving outcomes. The most recent International League Against Epilepsy definition considers two important timepoints in status epilepticus: first, when the seizure does not self-terminate; and second, when the seizure can have long-term consequences, including neuronal injury.

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Article Synopsis
  • This study examines the relationship between mitochondrial diseases and hearing impairments, focusing on how specific genetic mutations affect auditory functions.
  • An observational study was conducted with 72 adults, utilizing various tests to assess both cochlear and central auditory capabilities, revealing significant hearing deficits linked to the m.3243A>G/T genetic variants.
  • The findings highlight the complexity of hearing impairment in mitochondrial diseases, suggesting that tailored auditory evaluations and management approaches may improve outcomes based on individual genetic profiles.
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Extra-articular symptoms, including headaches, are frequently encountered in patients with Ehlers-Danlos syndrome (EDS) and hypermobility spectrum disorders (HSD), and may be the presenting complaint. Migraine is reported in up to three quarters of patients with symptomatic joint hypermobility, have a higher headache frequency, and an earlier age of onset compared to the general population. Orthostatic headache is an important presentation, and should raise suspicion of an underlying spinal cerebrospinal fluid leak, dysautonomia, and craniocervical pathology, which are all associated with heritable connective tissue disorders (HCTD) including EDS.

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Measuring Disease Progression in Multiple Sclerosis Clinical Drug Trials and Impact on Future Patient Care.

CNS Drugs

January 2025

Department of Neuroinflammation, Faculty of Brain Sciences, Queen Square Multiple Sclerosis Centre, University College London Queen Square Institute of Neurology, University College London, London, WC1B 5EH, UK.

Multiple sclerosis (MS) is a chronic immune-mediated disease of the central nervous system characterised by inflammation, demyelination and neurodegeneration. Although several drugs are approved for MS, their efficacy in progressive disease is modest. Addressing disease progression as a treatment goal in MS is challenging due to several factors.

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Therapeutics of neuroinflammatory disorders including multiple sclerosis is one of the fastest growing areas in neurology. However, pressures on higher specialty training in neurology together with an expanding curriculum have led to challenges in adequately preparing trainees for a subspecialist career. In this study we set out to understand current perceptions and barriers to training in neuroinflammatory disorders among neurology trainees in the UK.

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Assessment of the Clinical Interactions of GAA Repeat Expansions in and .

Neurol Genet

December 2024

From the Department of Neurology (B.J.G., J.S.N., M.N.), O'Donnell Brain Institute, University of Texas Southwestern Medical Center, Dallas; Department of Neurology and Neurosurgery (D.P., B.B.), Montreal Neurological Hospital and Institute, McGill University, Montreal, Quebec, Canada; Department of Neuromuscular Diseases (D.P.), UCL Queen Square Institute of Neurology and The National Hospital for Neurology and Neurosurgery, University College London, United Kingdom; Dr. John T. Macdonald Foundation Department of Human Genetics and John P. Hussman Institute for Human Genomics (M.C.D., S.Z.), University of Miami Miller School of Medicine, FL; Department of Human Genetics (B.B.), McGill University, Montreal, Quebec, Canada; Laboratory of Genome Integrity (G.M.-R., A.N.), National Cancer Institute, NIH; Laboratory of Cell and Molecular Biology (K.U.), National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD; and Department of Pediatrics and Neurology (C.C.P., D.R.L.), The Children's Hospital of Philadelphia, PA.

Article Synopsis
  • - This study aimed to investigate if the length of GAA repeat tracts in certain genes impacts the age of onset and clinical symptoms in patients with Friedreich ataxia (FRDA).
  • - Researchers analyzed 221 FRDA patients, focusing on the relationship between GAA repeat lengths and clinical presentation but found no significant correlations.
  • - Despite some similarities between FRDA and SCA27B, the GAA repeat lengths in the genes studied did not influence how FRDA manifests in patients.
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Article Synopsis
  • The MMPOWER-3 clinical trial initially found no overall benefit of elamipretide for adults with primary mitochondrial myopathy, but a subgroup with nuclear DNA variants showed improvement in a six-minute walk test.
  • A large portion of the trial subjects had mitochondrial DNA variants, with particular improvements noted among those possessing pathogenic variants related to mtDNA maintenance.
  • Further analyses aim to identify trends among responders to assist in designing a more targeted Phase 3 trial for those likely to benefit from elamipretide.
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