Single unit-derived connectivity networks in tuberous sclerosis complex reveal propensity for network hypersynchrony driven by tuber-tuber interactions.

Network hypersynchrony is emerging as an important system-level mechanism underlying seizures, as well as cognitive and behavioural impairments, in children with structural brain abnormalities. We investigated patterns of single neuron action potential behaviour in 206 neurons recorded from tubers, transmantle tails of tubers and normal looking cortex in 3 children with tuberous sclerosis. The patterns of neuronal firing on a neuron-by-neuron (autocorrelation) basis did not reveal any differences as a function of anatomy.

Effect of selective dorsal rhizotomy on bladder dysfunction in children with spastic cerebral palsy.

This study investigated the prevalence and severity of lower urinary tract symptoms (LUTS) in children with spastic cerebral palsy (SCP) and evaluated the effect of selective dorsal rhizotomy (SDR) in alleviating these symptoms. The study also explored the correlation between postoperative LUTS improvement and intraoperative electrophysiological findings. Prospective data were collected from a consecutive cohort of 247 children with SCP who underwent SDR and were retrospectively analyzed.

Wearable non-invasive neuroprosthesis for targeted sensory restoration in neuropathy.

Peripheral neuropathy (PN), the most common complication of diabetes, leads to sensory loss and associated health issues as pain and increased fall risk. However, present treatments do not counteract sensory loss, but only partially manage its consequences. Electrical neural stimulation holds promise to restore sensations, but its efficacy and benefits in PN damaged nerves are yet unknown.

Combined Use of Intranasal Methylprednisolone and Allopregnanolone: Revisiting Anti-inflammatory and Remyelinating Treatment in a Murine Model of Multiple Sclerosis.

Background: Multiple sclerosis (MS) is a demyelinating, neuroinflammatory, progressive disease that severely affects human health of young adults. Neuroinflammation (NI) and demyelination, as well as their interactions, are key therapeutic targets to halt or slow disease progression. Potent steroidal anti-inflammatory drugs such as methylprednisolone (MP) and remyelinating neurosteroids such as allopregnanolone (ALLO) could be co-administered intranasally to enhance their efficacy by providing direct access to the central nervous system (CNS).

Evidence for spinal disinhibition as a pain-generating mechanism in fibromyalgia syndrome.

Introduction: Pain phenomenology in patients with fibromyalgia syndrome (FMS) shows considerable overlap with neuropathic pain. Altered neural processing leading to symptoms of neuropathic pain can occur at the level of the spinal cord, and 1 potential mechanism is spinal disinhibition. A biomarker of spinal disinhibition is impaired H-reflex rate-dependent depression (HRDD).

Expanded and independent validation of the NoMoFA scale for Parkinson's disease: the Italian version.

Introduction: Non-motor symptoms (NMS) in Parkinson's disease (PD) can fluctuate daily, impacting patient quality of life. The Non-Motor Fluctuation Assessment (NoMoFA) Questionnaire, a recently validated tool, quantifies NMS fluctuations during ON- and OFF-medication states. Our study aimed to validate the Italian version of NoMoFA, comparing its results to the original validation and further exploring its clinimetric properties.

Polyneuropathy in Parkinson's Disease is Highly Prevalent and Not Related to Treatment.

Purpose: An increased prevalence of peripheral polyneuropathy (PN) in Parkinson's disease (PD) associated with greater functional impairment has previously been reported. A possible cause has been suggested as levodopa therapy. The aim of this real-world study was to assess the prevalence and the characteristics of PN in PD and to investigate the putative association between PN and oral levodopa.

Self-regulation of slow cortical potential and seizure suppression by scalp electroencephalography: Early prediction of therapeutic efficacy.

Objective: Seizure suppression using the neurofeedback (NFB) method by self-regulation of scalp-recorded slow cortical potential (SCP) is effective for patients with refractory focal epilepsy. However, the prolonged training period required prevents it from wider implementation as the standard treatment in clinical practice. Therefore, we examined whether it would be appropriate to shorten the training period, in spite of the small number of patients.

Spinally targeted paired associated stimulation with high-frequency peripheral component induces spinal level plasticity in healthy subjects.

A novel variant of paired-associative stimulation (PAS) consisting of high-frequency peripheral nerve stimulation (PNS) and high-intensity transcranial magnetic stimulation (TMS) above the motor cortex, called high-PAS, can lead to improved motor function in patients with incomplete spinal cord injury. In PAS, the interstimulus interval (ISI) between the PNS and TMS pulses plays a significant role in the location of the intended effect of the induced plastic changes. While conventional PAS protocols (single TMS pulse often applied with intensity close to resting motor threshold, and single PNS pulse) usually require precisely defined ISIs, high-PAS can induce plasticity at a wide range of ISIs and also in spite of small ISI errors, which is helpful in clinical settings where precise ISI determination can be challenging.

Neural processing of sad and happy autobiographical memories in women with depression and borderline personality disorder.

Patients with major depressive disorder (MDD) and borderline personality disorder (BPD) are reported to have disrupted autobiographical memory (AM). Using functional magnetic resonance imaging we investigated behavioral and neural processing of the recall of emotional (sad and happy) memories in 30 MDD, 18 BPD, and 34 healthy control (HC) unmedicated women. The behavioral results showed that the MDD group experienced more sadness than the HC after the sad recall, while BPD participants experienced less happiness than HC after the happy recall.

The relationship between early life EEG and brain MRI in preterm infants: A systematic review.

Objective: To systematically review the literature on the associations between electroencephalogram (EEG) and brain magnetic resonance imaging (MRI) measures in preterm infants (gestational age < 37 weeks).

Methods: A comprehensive search was performed in PubMed and EMBASE databases up to February 12th, 2024. Non-relevant studies were eliminated following the PRISMA guidelines.

Small fiber pathology in fibromyalgia syndrome.

About 50% of women with fibromyalgia syndrome have reduced skin innervation. This finding is consistent in patient cohorts from different regions of the world. Small fiber function may also be affected, as shown by various studies using different methods, such as quantitative sensory testing or special small fiber neurophysiology such as C-fiber microneurography.

Perinatal Hypoxic-hypoglycemic Injury and Epilepsy: A Comprehensive Analysis of Clinical and Laboratory Data in Adults.

Perinatal hypoxia and/or hypoglycemia (PHH) is a serious condition leading to many neonatal deaths worldwide. It causes motor and cognitive deficits, visual disturbances, and seizures in survivors. There is limited information on the clinical course of seizures, EEG and MRI findings in adults.

Quantitative Electroencephalography Biomarkers in Patients With Anti-N-methyl-D-aspartate Receptor Encephalitis: A Case-Control Study.

Purpose: Anti-N-methyl-D-aspartate receptor (NMDAR) encephalitis is an autoimmune reaction involving Immunoglobulin G antibodies against GluN1 subunit of NMDAR. Absence of biomarkers for early diagnosis and prognosis poses a challenge. Several small case-control studies have emphasized the prospect of quantitative EEG measurements.

Peripheral nerve excitability abnormalities in Neuronal Intranuclear Inclusion Disease: Assessment with histopathological analysis.

Objective: Neuronal Intranuclear Inclusion Disease (NIID) is a neurodegenerative disease affecting the central and peripheral nerves. We aimed to assess the pathophysiological features of peripheral nerve dysfunction in NIID.

Methods: We observed six unrelated NIID patients through clinical records, nerve conduction studies, and multiple measures of motor nerve excitability.

Unsupervised clustering of a deeply phenotyped cohort of adults with idiopathic generalized epilepsy.

Objective: Idiopathic generalized epilepsy (IGE) in adults comprise juvenile myoclonic epilepsy (JME), juvenile absence epilepsy (JAE), and epilepsy with generalized tonic-clonic seizures alone (EGTCS), which are defined by their seizure types but also cover a broad endophenotype of symptoms. Controversy exists on whether adult IGE is a group of distinct diseases or a clinical spectrum of one disease. Here, we used a deeply phenotyped cohort to test the hypothesis that IGE comprises three distinct clinical entities.

Risdiplam in Adult Patients With 5q Spinal Muscular Atrophy: A Single-Center Longitudinal Study.

Introduction/aims: Risdiplam was the first orally administered drug approved to treat spinal muscular atrophy (SMA). Efficacy in adults is based on short-term observational studies. This longitudinal study aimed to examine risdiplam's efficacy and safety in adults over a long period of follow-up.

Spectrum disorder of RFC1 expansions/CANVAS: Clinical and electrophysiological characterization of a group of 31 patients.

Introduction/objective: Biallelic expansion of the pentanucleotide AAGGG in the RFC1- gene is associated with cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS). This study aimed to comprehensively characterise this condition by conducting an in-depth neurophysiological examination of afflicted patients.

Methods: A retrospective analysis was conducted in 31 RFC1-positive patients.

Challenges and Research Opportunities for Integrating Quantitative Electroencephalography Into Sports Concussion Rehabilitation.

Although concussion management and return to play/learn decision making focuses on reducing symptoms, there is growing interest in objective physiological approaches to treatment. Clinical and technological advancements have aided concussion management; however, the scientific study of the neurophysiology of concussion has not translated into its standard of care. This expert commentary is motivated by novel clinical applications of electroencephalographic-based neurofeedback approaches (eg, quantitative electroencephalography [QEEG]) for treating traumatic brain injury and emerging research interest in its translation for treating concussion.

1924-2024: First centennial of EEG.

On July 6th of 1924 Hans Berger -a German psychiatrist- first recorded electric signals from the human brainvia scalp electrodes. This date marks the beginning of Electroencephalography. In this review a representative panel of past and present Officers of the International Federation of Clinical Neurophysiology (IFCN) and of its Official Journal briefly summarizes the past, present and future of Electroencephalographic and related neurophysiological techniques' impact and the role of the IFCN in global collaboration, education, standardization, research innovation, and clinical practice.

Functional network disruption in cognitively unimpaired autosomal dominant Alzheimer's disease: a magnetoencephalography study.

Understanding the nature and onset of neurophysiological changes, and the selective vulnerability of central hub regions in the functional network, may aid in managing the growing impact of Alzheimer's disease on society. However, the precise neurophysiological alterations occurring in the pre-clinical stage of human Alzheimer's disease remain controversial. This study aims to provide increased insights on quantitative neurophysiological alterations during a true early stage of Alzheimer's disease.

The Role of Modifying Risk Factors as Well as Body Mass Index, Waist Circumference and Hip to Waist Ratio as Anthropometric Indicators and Parameters of Obesity in the Occurence of Stroke.

Background: Evaluated values of body mass index (BMI), waist circumeference (WC) and waist-to-hip ratio (WHR) increase the risk of stroke, but the extent to which this is mediated by hypertension, diabetes, lipid status, smoking and alcohol consumption is not fully understood.

Objective: The aim of this research is to examine the influence of modifying and non-modifying factors as well as obesity defined through BMI, WC and WHR on the occurrence of stroke.

Methods: A total of 440 subjects were included in the cohort divided in to two groups.

Hypoalbuminemia in status epilepticus is a biomarker of short- and long-term mortality: A 9-year cohort study.

Background: Outcome prediction in Status epilepticus (SE) aids in clinical decision-making, yet existing scores have limitations due to SE heterogeneity. Serum albumin is emerging as a readily available prognostic biomarker in various clinical conditions. This study evaluates hypoalbuminemia in predicting short- and long-term mortality.

Change in sleep quality Induced by adaptive servo-ventilation for central sleep apnea: 6-month follow-up of the multicenter nationwide French FACIL-VAA cohort.

Background: A large number of symptomatic individuals with central sleep apnea (CSA) in clinical practice have an indication for adaptive servo-ventilation (ASV) therapy.

Research Question: What are the effects of ASV therapy on sleep quality and PROMs in patients with CSA across a range of devices and indications.

Methods: This prospective, multicenter, observational cohort study was conducted in France and enrolled participants from June 2017 to February 2020.