641 results match your criteria: "Fondazione IRCCS Neurological Institute "Carlo Besta"[Affiliation]"

Pathogenic variants in , encoding dynamin-like protein-1 (DRP1), cause a lethal encephalopathy. DRP1 defective function results in altered mitochondrial networks, characterized by elongated/spaghetti-like, highly interconnected mitochondria. We validated in yeast the pathogenicity of a de novo variant identified by whole exome sequencing performed more than 10 years after the patient's death.

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Intraoperative ultrasound (ioUS) provides real-time imaging during neurosurgical procedures, with advantages such as portability and cost-effectiveness. Accurate tumor segmentation has the potential to substantially enhance the interpretability of ioUS images; however, its implementation is limited by persistent challenges, including noise, artifacts, and anatomical variability. This study aims to develop a convolutional neural network (CNN) model for glioma segmentation in ioUS images via a multicenter dataset.

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Background: Accurate prognostic models are essential for optimizing treatment strategies for glioblastoma, the most aggressive primary brain tumor. While other neuroimaging modalities have demonstrated utility in predicting overall survival (OS), intraoperative ultrasound (iUS) remains underexplored for this purpose. This study aimed to evaluate the prognostic potential of iUS radiomics in glioblastoma patients in a multi-institutional cohort.

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Background: The approval of new disease-modifying therapies by the U.S. Food and Drug Administration and the European Medicine Agency makes it necessary to optimize non-invasive and cost-effective tools for the identification of subjects at-risk of developing Alzheimer's Disease (AD).

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Epilepsy, a neurological disorder characterised by recurrent seizures, poses significant challenges in diagnosis, treatment, and management. Understanding the underlying causes and identifying precise anatomical locations of epileptogenic foci are critical for effective management strategies, particularly in drug-resistant patients. Neuroimaging techniques, particularly magnetic resonance (MR), play a pivotal role in the evaluation of epilepsy patients, offering insights into structural abnormalities, epileptogenic lesions, and functional alterations within the brain.

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Background: The advent of disease-modifying treatments (DMT) has changed natural history in 5q Spinal muscular atrophy (SMA). The aim of this study was to report survival and functional aspects in all the Italian type I children born since 2016.

Methods: The study included all symptomatic children with type I SMA born since January 1st, 2016, when DMTs became available in Italy.

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Article Synopsis
  • The study aimed to assess the prevalence, age distribution, and functional status of Duchenne muscular dystrophy (DMD) in Italy, highlighting improvements in care recommendations.
  • The survey involved data collection from 31 reference centers across the country, identifying key demographic and functional factors among 972 diagnosed individuals aged 6 months to 48 years.
  • Results showed a prevalence of 1.65/100,000 people, with 43% ambulant and 57% non-ambulant, and most patients did not require significant respiratory or nutritional support.
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Salience Network in Autism: preliminary results on functional connectivity analysis in resting state.

Eur Arch Psychiatry Clin Neurosci

December 2024

Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.

The literature suggests that alterations in functional connectivity (FC) of the Salience Network (SN) may contribute to the manifestation of some clinical features of Autism Spectrum Disorder (ASD). The SN plays a key role in integrating external sensory information with internal emotional and bodily information. An atypical FC of this network could explain some symptomatic features of ASD such as difficulties in self-awareness and emotion processing and provide new insights into the neurobiological basis of autism.

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Background: Multiple sclerosis (MS) is an immune-mediated, chronic, inflammatory demyelinating disease of the central nervous system, impacting around 2.8 million people worldwide. Characterised by recurrent relapses or progression, or both, it represents a substantial global health burden, affecting people, predominantly women, at a young age (the mean age of diagnosis is 32 years).

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X-chromosome-wide association study for Alzheimer's disease.

Mol Psychiatry

December 2024

Univ. Lille, Inserm, CHU Lille, Institut Pasteur de Lille, LabEx DISTALZ - U1167-RID-AGE Facteurs de Risque et Déterminants Moléculaires des Maladies Liées au Vieillissement, Lille, France.

Article Synopsis
  • A study was conducted to investigate the X-chromosome's role in Alzheimer's Disease (AD), which had been overlooked in previous genome-wide association studies.
  • The research included 115,841 AD cases and 613,671 controls, considering different X-chromosome inactivation (XCI) states in females.
  • While no strong genetic risk factors for AD were found on the X-chromosome, seven significant loci were identified, suggesting areas for future research.
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  • Poor affect recognition is an early indicator of frontotemporal dementia (FTD), and this study used the Comprehensive Affect Testing System (CATS-A) to assess emotional dysfunction in FTD patients compared to healthy controls.
  • The study involved 139 FTD patients of various subtypes and tested them alongside 116 healthy controls, measuring their Affective Recognition Quotient (ARQ) to evaluate emotional recognition accuracy.
  • Results showed that the CATS-A effectively differentiated between FTD patients and healthy controls with high accuracy (AUC 0.89) and had robust internal reliability, suggesting it's a valuable clinical tool for assessing emotional dysfunction in FTD.
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Functional Outcome Measures to Optimize Drug Development in Spinal and Bulbar Muscular Atrophy: Results From a Meta-Analysis of the Global SBMA Dataset.

Neurology

December 2024

From the Nido Biosciences (S.B.H., A.T.N.T., V.V.), Inc., Boston, MA; Institute of Developmental and Regenerative Medicine (IDRM) (C.R.), University of Oxford; Department of Neuromuscular Diseases (D.J., L.Z., P.F.), University College of London, United Kingdom; Department of Neurosciences (L.B., A.F., G.S.), Neuromuscular Center, University of Padova, Italy; Neurogenetics Branch (A.A., A.K., C.G.), National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD; Copenhagen Neuromuscular Center (J.D., J.V.), Rigshospitalet, University of Copenhagen, Denmark; Fondazione IRCSS (S.F., E.C., A.B., C.M., D.P.), Istituto Neurologico Carlo Besta Milano, Italy; Department of Neurology (T.K., Y.K., S.Y.), Nagoya University Graduate School of Medicine; Department of Neurology and Department of Clinical Research Education (M. Katsuno), Nagoya University Graduate School of Medicine, Japan; Centro Clinico Nemo Adulti-Fondazione Serena onlus (A.C.), Policlinico Universitario Agostino Gemelli IRCCS; Centro Clinico Nemo Adulti-Fondazione Serena onlus (M.S.), Policlinico Universitario Agostino Gemelli IRCCS, Section of Neurology, Department of Neuroscience, Faculty of Medicine and Surgery, Università Cattolica del Sacro Cuore, Rome, Italy; and Department of Neurology (M. Kang, J.-S.P.), School of Medicine, Kyungpook National University, Chilgok Hospital, Daegu, Korea.

Background And Objectives: Spinal and bulbar muscular atrophy (SBMA) is a rare, slowly progressive, and debilitating disease without effective treatments available. Lack of reliable biomarkers and sensitive outcome measures makes clinical research conduct challenging. The primary objective of this study was to identify clinically meaningful and statistically sensitive outcome measures enabling the evaluation of therapeutic interventions in late-stage clinical trials.

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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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Lewy pathology formation in patient-derived GBA1 Parkinson's disease midbrain organoids.

Brain

November 2024

Neurology Unit, IRCCS Foundation Ca' Granda Ospedale Maggiore Policlinico, Milan 20122, Italy.

Fibrillary aggregation of α-synuclein in Lewy body inclusions and nigrostriatal dopaminergic neuron degeneration define Parkinson's disease neuropathology. Mutations in GBA1, encoding glucocerebrosidase, are the most frequent genetic risk factor for Parkinson's disease. However, the lack of reliable experimental models able to reproduce key neuropathological signatures has hampered the clarification of the link between mutant glucocerebrosidase and Parkinson's disease pathology.

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Myoclonus has multiple clinical manifestations and heterogeneous generators and etiologies, encompassing a spectrum of disorders and even physiological events. This paper, developed from a teaching course conducted by the Neurophysiology Commission of the Italian League against Epilepsy, aims to delineate the main types of myoclonus, identify potential underlying neurological disorders, outline diagnostic procedures, elucidate pathophysiological mechanisms, and discuss appropriate treatments. Neurophysiological techniques play a crucial role in accurately classifying myoclonic phenomena, by means of simple methods such as EEG plus polymyography (EEG + Polymyography), evoked potentials, examination of long-loop reflexes, and often more complex protocols to study intra-cortical inhibition-facilitation In clinical practice, EEG + Polymyography often represents the first step to identify myoclonus, acquire signals for off-line studies and plan the diagnostic work-up.

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Epilepsy-pregnancy registries: An update.

Epilepsia

January 2025

Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.

This report is the first comprehensive update on the activities of existing epilepsy-pregnancy registries since 2010. The primary aim of these registries, which were initiated by independent international research groups some 25 years ago, has been to assess the risk of major congenital malformations (MCMs) in offspring exposed in utero to different antiseizure medications (ASMs). Progress reports are provided here from the five original registries (the International Registry of Antiepileptic Drugs and Pregnancy EURAP, the North American Antiepileptic Drug Pregnancy Registry, the UK and Ireland Epilepsy and Pregnancy Register, the Kerala Registry of Epilepsy and Pregnancy, and the Raoul Wallenberg Australian Pregnancy Register of Antiepileptic Drugs) plus the more recently initiated West China Registry.

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Association of Initial Side of Brain Atrophy With Clinical Features and Disease Progression in Patients With Frontotemporal Dementia.

Neurology

December 2024

From the Alzheimer's Disease and Other Cognitive Disorders Unit (S.B.-E., J.J.-P., A.P.M., M.B., A.L., R.S.-V.), Neurology Service, Hospital Clínic de Barcelona, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Fundació Clínic per a la Recerca Biomèdica, Universitat de Barcelona, Spain; VIB Center for Molecular Neurology (M.V., R.R.); Department of Biomedical Sciences (M.V., R.R.), University of Antwerp, Belgium; Dementia Research Centre (A.B., L.L.R., P.H.F., E.F.-B., J.D.R.), Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, United Kingdom; Department of Neurology (J.C.V.S., L.C.J., H.S.), Erasmus Medical Centre, Rotterdam, Netherlands; Clinique Interdisciplinaire de Mémoire (R.L.), Département des Sciences Neurologiques, CHU de Québec, and Faculté de Médecine, Université Laval, Canada; Division of Neurogeriatrics, Bioclinicum (C.G.), Department of Neurobiology, Care Sciences and Society; Center for Alzheimer Research, Karolinska Institutet; Unit for Hereditary Dementias (C.G.), Theme Inflammation and Aging, Karolinska University Hospital, Solna, Sweden; Department of Biomedical (D.G.), Surgical and Dental Sciences, University of Milan; Fondazione Ca' Granda (D.G.), IRCCS Ospedale Policlinico, Milan, Italy; Laboratory for Cognitive Neurology (R.V.), Department of Neurosciences, KU Leuven; Neurology Service (R.V.), University Hospitals Leuven; Leuven Brain Institute (R.V.), KU Leuven, Belgium; Faculty of Medicine (A.M.), University of Lisbon, Portugal; Fondazione IRCCS Istituto Neurologico Carlo Besta (P.T.), Milano, Italy; Neurology Service (I.S.), Faculty of Medicine, University Hospital of Coimbra (HUC), University of Coimbra; Center for Neuroscience and Cell Biology (I.S.), Faculty of Medicine, University of Coimbra, Portugal; Division of Psychology Communication and Human Neuroscience (A.G.), Wolfson Molecular Imaging Centre, University of Manchester, United Kingdom; Department of Nuclear Medicine (A.G.), Center for Translational Neuro- and Behavioral Sciences, University Medicine Essen; Department of Geriatric Medicine (A.G.), Klinikum Hochsauerland, Arnsberg; Department of Neurology (J.L.), Ludwig-Maximilians Universität München; German Center for Neurodegenerative Diseases (DZNE) (J.L.); Munich Cluster of Systems Neurology (SyNergy) (J.L.), Munich, Germany; Department of Neurofarba (S.S.), University of Florence; IRCCS Fondazione Don Carlo Gnocchi (S.S.), Florence, Italy; Department of Neurology (M.O.), University of Ulm, Germany; Univ Lille (F.P.), France; Department of Psychiatry (S.D.), McGill University Health Centre, McConnell Brain Imaging Centre (S.D.), Montreal Neurological Institute, McGill University, Montreal, Québec, Canada; Medical Sciences Division (C.B.), Nuffield Department of Clinical Neurosciences, University of Oxford, Department of Brain Sciences (C.B.), Imperial College London, United Kingdom; Sorbonne Université (I.L.B.), Paris Brain Institute-Institut du Cerveau-ICM, Inserm U1127, CNRS UMR 7225; Centre de référence des démences rares ou précoces (I.L.B.), IM2A, Département de Neurologie; Département de Neurologie (I.L.B.), AP-HP - Hôpital Pitié-Salpêtrière, Paris, France; Department of Clinical Neurological Sciences (E.F.), University of Western Ontario, London; Tanz Centre for Research in Neurodegenerative Diseases (M.C.T.), Ontario; Sunnybrook Health Sciences Centre (M.M.), Sunnybrook Research Institute, University of Toronto, Canada; Department of Clinical Neurosciences and Cambridge University Hospitals NHS Trust (J.B.R.), University of Cambridge, United Kingdom; Department of Neurodegenerative Diseases (M.S.), Hertie-Institute for Clinical Brain Research and Center of Neurology, University of Tübingen, Germany; Cognitive Disorders Unit (F.M.), Department of Neurology, Donostia Universitary Hospital, San Sebastian, Spain; Neurology Unit (B.B.), Department of Clinical and Experimental Sciences, University of Brescia, Italy; and Department of Neuroscience (R.R.), Mayo Clinic, Jacksonville, FL.

Background And Objectives: Pathogenic variants in the gene cause frontotemporal dementia (FTD-) with marked brain asymmetry. This study aims to assess whether the disease progression of FTD- depends on the initial side of the atrophy. We also investigated the potential use of brain asymmetry as a biomarker of the disease.

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Article Synopsis
  • Becker muscular dystrophy (BMD) is an X-linked neuromuscular disorder caused by mutations in the DMD gene, impacting dystrophin production in muscle tissues, which is important for patient care and treatment development.
  • A study of 943 BMD patients revealed the median age at diagnosis was 7.5 years, with significant findings including that about 13.5% lost mobility by an estimated age of 69, while 30% experienced cardiac issues.
  • Different types of DMD mutations correlated with variations in disease progression, particularly affecting loss of ambulation and heart functionality, highlighting the importance of precise genetic characterization for managing BMD.
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  • Migraine affects 15.2% of the global population, is a leading cause of disability, especially among women, and remains underdiagnosed and undertreated in many cases.
  • The condition displays both common and individual characteristics, with a varied presentation in symptoms, frequency, and response to treatments, influenced by genetic factors.
  • Education on migraine management is crucial for improving daily life for patients and reducing the number of individuals needing specialized care, allowing specialists to focus on more complex cases.
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  • The study explored genetic links to neuropathic pain by comparing individuals with the condition to those who had injuries but did not experience neuropathic pain.
  • Key findings included significant associations with the KCNT2 gene and pain intensity, as well as other genes like LHX8 and TCF7L2 connected to neuropathic pain.
  • The research also highlighted the influence of polygenic risk scores related to depression and inflammation on neuropathic pain, while discovering novel genetic variants tied to specific sensory profiles.
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Mechanism-free repurposing of drugs for C9orf72-related ALS/FTD using large-scale genomic data.

Cell Genom

November 2024

Neuromuscular Diseases Research Section, National Institute on Aging, National Institutes of Health (NIH), Bethesda, MD 20892, USA; Department of Neurology, Johns Hopkins University Medical Center, Baltimore, MD 21287, USA; Reta Lila Weston Institute, UCL Queen Square Institute of Neurology, University College London, London WC1N 1PJ, UK; National Institute of Neurological Disorders and Stroke (NINDS), NIH, Bethesda, MD 20892, USA; RNA Therapeutics Laboratory, National Center for Advancing Translational Sciences (NCATS), NIH, Rockville, MD 20850, USA. Electronic address:

Article Synopsis
  • Repeat expansions in the C9orf72 gene are a leading genetic cause of ALS and frontotemporal dementia, but understanding how this mutation causes neuron death is still unclear, complicating the search for effective therapies.
  • Researchers analyzed data from over 41,000 ALS and healthy samples to identify potential treatments, discovering that acamprosate, a drug used for other conditions, might be repurposed for C9orf72-related diseases.
  • Their findings demonstrated that acamprosate has neuroprotective properties in cell models and works similarly well as the current treatment, riluzole, showing the potential of using genomic data to find new drug applications.
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Introduction: Genetic mutation carriers of frontotemporal dementia can remain cognitively well despite neurodegeneration. A better understanding of brain structural, perfusion, and functional patterns in the pre-symptomatic stage could inform accurate staging and potential mechanisms.

Methods: We included 207 pre-symptomatic genetic mutation carriers and 188 relatives without mutations.

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WONOEP appraisal: The role of glial cells in focal malformations associated with early onset epilepsies.

Epilepsia

December 2024

Saul R. Korey Department of Neurology, Isabelle Rapin Division of Child Neurology, Dominique P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, Bronx, New York, USA.

Epilepsy represents a common neurological disorder in patients with developmental brain lesions, particularly in association with malformations of cortical development and low-grade glioneuronal tumors. In these diseases, genetic and molecular alterations in neurons are increasingly discovered that can trigger abnormalities in the neuronal network, leading to higher neuronal excitability levels. However, the mechanisms underlying epilepsy cannot rely solely on assessing the neuronal component.

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Article Synopsis
  • A systematic review was conducted to evaluate the use of stereotactic radiosurgery (SRS) specifically in pediatric patients, aiming to inform guidelines by the International Stereotactic Radiosurgery Society (ISRS).
  • The study analyzed 68 articles focusing on outcomes for around 400 children with brain tumors and over 5000 with arteriovenous malformations (AVMs) from 1989 to 2021, reporting varying local control rates for different tumor types.
  • The findings indicated that SRS demonstrated suitable local control rates for pediatric brain tumors and AVMs, but data availability is limited, leading to the development of ISRS consensus guidelines for its use in this population.
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