Publications by authors named "Parmeggiani L"

The neuronal ceroid lipofuscinoses (NCLs) are incurable pediatric neurodegenerative diseases characterized by accumulation of lysosomal material and dysregulation of autophagy. Given the promising results of treatment with trehalose, an autophagy inducer, in cell and animal models of NCL, we conducted an open-label, non-placebo-controlled, non-randomized 12-month prospective study in NCL patients receiving oral trehalose (4 g/day). All were treated with a commercially available formulation for 6 months, followed by a 6-month washout.

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Article Synopsis
  • The study aims to describe the electro-clinical characteristics of individuals with developmental and epileptic encephalopathy (DEE) caused by mutations in the PPP3CA gene.
  • Four unique cases are analyzed, showing different seizure patterns and developmental issues linked to specific pathogenic variants in the gene.
  • The findings suggest the type and location of these mutations significantly affect clinical outcomes, highlighting the need for more research and collaboration in this rare condition.
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Article Synopsis
  • Developmental and epileptic encephalopathies (DEE) involve gene mutations leading to issues in the central nervous system, causing encephalopathy and seizures.
  • A case study focuses on a girl with a Rett-like condition who experienced typical development until 18 months, followed by developmental regression and a series of seizures starting at 30 months.
  • Despite treatment with valproic acid and levetiracetam, she continued to have recurrent seizures and was found to have a specific genetic mutation through advanced sequencing techniques.
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Biallelic CNTNAP2 variants have been associated with Pitt-Hopkins-like syndrome. We describe six novel and one previously reported patients from six independent families and review the literature including 64 patients carrying biallelic CNTNAP2 variants. Initial reports highlighted intractable focal seizures and the failure of epilepsy surgery in children, but subsequent reports did not expand on this aspect.

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Background: Dravet syndrome (DS) and Lennox-Gastaut syndrome (LGS) currently present a therapeutic challenge. A pharmaceutical cannabidiol (CBD) specialty (Epidyolex®) has been approved by the FDA and EMA for the treatment of seizures in these syndromes. However, in Italy, the use of galenic formulations versus the pharmaceutical CBD has not been clearly regulated.

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A wide phenotypic spectrum of neurological diseases is associated with KCNA1 (Kv1.1) variants. To investigate the molecular basis of such a heterogeneous clinical presentation and identify the possible correlation with in vitro phenotypes, we compared the functional consequences of three heterozygous de novo variants (p.

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Intracranial penetration during attempted nasotracheal intubation is a potentially devastating complication, which should be carefully evaluated and the risk should be addressed in neonatal resuscitation trainings.

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Monoallelic mutations on TMEM63A have been recently reported as cause of a previously unrecognized disorder named "infantile-onset transient hypomyelination". Clinical and neuroradiological presentation is described as highly similar to Pelizaeus-Merzbacher Disease but evolution over time was surprisingly benign with a progressive spontaneous improving course. We report on a new TMEM63A-mutated girl.

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A survey of European Pain Federation 2019 attendees was conducted to identify unmet needs in chronic pain patients. Four questions were asked focusing on functional impairment in chronic pain, including who are at increased risk and ways to better identify and manage these patients. In total 143 respondents indicated that key issues were lack of knowledge, lack of resources/time to assess and manage chronic pain and lack of sufficient tools to identify patients at risk for functional impairment.

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Leucine-rich glioma-inactivated protein 1 (LGI1) and contactin-associated protein-like 2 (CASPR2) neurological autoimmunity in adults has been associated with various clinical syndromes involving central, peripheral and autonomic nervous system, while data in children is limited. We perform the first systematic literature review on paediatric LGI1 and CASPR2 autoimmunity, with focus on clinical data, in order to contribute to the definition of clinical features of LGI1 and CASPR2 autoimmunity in paediatric age and favour early diagnosis. Additionally, we report the youngest-to-date case of Morvan syndrome.

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Purpose: Mutations in SZT2 have been previously reported in several cases of early onset epilepsy and intellectual disability. In this study we investigate potential causal mutations in two male siblings affected by early onset epilepsy, intellectual disability and macrocephaly.

Methods: We use family-based whole-exome sequencing to identify candidate variants.

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Objective: PCDH19-related epilepsy is an epileptic syndrome with infantile onset, characterized by clustered and fever-induced seizures, often associated with intellectual disability (ID) and autistic features. The aim of this study was to analyze a large cohort of patients with PCDH19-related epilepsy and better define the epileptic phenotype, genotype-phenotype correlations, and related outcome-predicting factors.

Methods: We retrospectively collected genetic, clinical, and electroencephalogram (EEG) data of 61 patients with PCDH19-related epilepsy followed at 15 epilepsy centers.

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Objective: To describe electroclinical features and outcome of 6 patients harboring mutations.

Methods: Clinical, EEG, neuropsychological, and brain MRI data analysis. Targeted next-generation sequencing of a 95 epilepsy gene panel.

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Aim: Migraine affects approximately 10-20% of the general population, including children and adolescents, and an association between migraine and increased risks for cardiovascular disease and stroke have been reported in adult patients. This study aimed to address the lack of data on children with migraine.

Methods: This study comprised 30 children and adolescents (16 male) with migraine.

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Purpose: Mutations of the protocadherin19 gene (PCDH19) cause a female-related epilepsy of variable severity, with or without mental retardation and autistic features. Despite the increasing number of patients and mutations reported, the epilepsy phenotype associated with PCDH19 mutations is still unclear. We analyzed seizure semiology through ictal video-electroencephalography (EEG) recordings in a large series of patients.

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Objective: To explore the causative role of PCDH19 gene (Xq22) in female patients with epilepsy.

Methods: We studied a cohort of 117 female patients with febrile seizures (FS) and a wide spectrum of epilepsy phenotypes including focal and generalized forms with either sporadic or familial distribution.

Results: PCDH19 screening showed point mutations in 13 probands (11%).

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Purpose: Carisbamate, a novel neuromodulatory agent with antiepileptic properties, was evaluated in patients with photoparoxysmal responses to intermittent photic stimulation (IPS) in this multicenter, non-randomized, single-blind, placebo-controlled, proof-of-concept study.

Methods: Eighteen Caucasian patients (14 females, 4 males) with a mean age of 30 years (range: 16-51 years) underwent standardized IPS under three eye conditions (during eye closure, eyes closed and eyes open) at hourly intervals for up to 8h after receiving placebo (Day 1), carisbamate (Day 2) and placebo (Day 3). Carisbamate was given at single doses of 250-1000 mg.

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Objectives: Myocardial adenosine is increased in pressure-overload hypertrophy (POH) and exerts important cardioprotective effects that delay transition to left ventricular failure. Adenosine-mediated signaling is attenuated in POH, but whether this depends on receptor or postreceptor defects is unknown. We therefore examined left ventricular adenosine A1-receptor gene and protein expression in experimental POH.

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Topiramate, a derivative of the monosaccharide d-fructose, has shown a wide spectrum of antiepileptic efficacy in both animal models and clinical trials. Multiple putative mechanisms of action include voltage-sensitive sodium channel blockade, calcium channel inhibition, increase of potassium conductance, GABA-mediated chloride current increment, glutamate-mediated neurotransmission inhibition and carbonic anhydrase isoenzyme inhibition. In general, the clinical response is maintained in the long-term.

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Background: The aim in treating epilepsy is to minimise or control seizures with full respect of quality-of-life issues, especially of cognitive functions. Optimal treatment first demands a correct recognition of the major type of seizures, followed by a correct diagnosis of the type of epilepsy or of the specific syndrome.

Methods: Review of data from literature and personal clinical experience in treating children with epilepsy.

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Nonconvulsive status epilepticus can be confused with psychiatric disorders. Inappropriate drug treatment can represent a precipitating factor. We describe two patients with idiopathic generalized epilepsy in whom nonconvulsive status epilepticus, aggravated by carbamazepine, was misdiagnosed as psychiatric disorder.

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Pallister-Killian syndrome (PKS) is a rare, sporadic, genetic disorder characterized by dysmorphic features, learning disability, and epilepsy. It is caused by a mosaic supernumerary isochromosome 12p (i[12p]). The i(12p) is rarely found in peripheral blood but it is present in skin fibroblasts.

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