Results 81 to 90 of about 8,171 (145)

Pathophysiology of developmental and/or epileptic encephalopathy with spike–wave activation in sleep: A diagnostic framework

Developmental Medicine &Child Neurology, EarlyView.
This review integrates emerging evidence on the pathophysiology of D/EE‐SWAS, highlighting the role of disrupted sleep homeostasis and thalamocortical network dysfunction. We propose a clinically applicable diagnostic framework that combines sleep EEG, structural imaging, genomic testing and longitudinal neuropsychological assessment to improve ...
Aysha Rasheed, Shivani Sekar, Rameez Naqvi, Manidipa Dutta, Manal Issa, Angeliki Menounou, Deepa Krishnakumar, Thiloka Ratnaike   +7 more
wiley   +1 more source

RCC1 neuropathy mimics childhood axonal Guillain–Barré syndrome with variable clinical severity and survival

Developmental Medicine &Child Neurology, EarlyView.
We present 10 patients who presented with acute onset axonal neuropathy following infection, mimicking childhood axonal Guillain–Barré syndrome. We review phenotypes, undertake survival analysis, and assess function of novel RCC1 variants in vitro. Abstract Aim To assess the phenotype and genotype of 10 new patients with biallelic RCC1 variants who ...
Han Zhang, Beril Din, John H. McDermott, RCC1 Neuropathy Study Group, Adam Jackson, Halil Tuna Akar, Ali Dursun, Riza Koksal‐Ozgul, Reza Sadjadi, Lauren Politica, Stephan Zuchner, Reza Maroofian, Usman Ali, Dudu Turkyilmaz, Jawadur Rahman, Hasan Bas, Khalid Hussain, Khalid A Fakhro, Aljazi Al‐Maraghi, Annemarie CS Knijnenburg, Monique Engel, Debby Hellebrekers, Heike Losch, Sietse M Aukema, Marlene Kullik, Christoph Geier, Raymond T. O'Keefe, William G. Newman, J. Robert Harkness   +28 more
wiley   +1 more source

Newly identified human aminoacyl‐tRNA synthetase complex interacting multifunctional protein 2 (AIMP2) loss‐of‐function mutations cause neurodevelopmental defects linked to cell death in a zebrafish model

The FEBS Journal, EarlyView.
Human AIMP2 mutations lead to severe neurodevelopmental defects and brain atrophy. Using patient‐derived fibroblasts from two individuals, we show decreased AIMP2 protein levels and overall protein synthesis. In a zebrafish loss‐of‐function model, the lack of AIMP2 leads to an increase in cell death and results in smaller brains.
Patrick Mullen, Shenela Lakhani, Joshua Appelbaum, DéJenaé See, Pryce Patterson, Collin M. MacLeod, Alexandra George, Reza Maroofian, Margaret E. Ross, Christopher Francklyn, Alicia M. Ebert   +10 more
wiley   +1 more source

Genetic insights into progressive myoclonic epilepsies: A case study of KCTD7 mutation in an Iranian-Azeri-Turkish family

Epilepsy & Behavior Reports
Progressive Myoclonic Epilepsies (PMEs) are a rare and heterogeneous group of epileptic disorders often with progressive neurologic deterioration. The intensity of the clinical features varies depending on the underlying genetic etiology. This study aims
Haneieh Honarmand, Mortaza Bonyadi, Mohammad Barzegar   +2 more
doaj   +1 more source

Dravet Syndrome: A Primer for Behavior Analysts

Behavioral Interventions, Volume 41, Issue 4, November 2026.
ABSTRACT Dravet syndrome (DS) is a rare and severe developmental and epileptic encephalopathy that is characterized by prolonged seizures beginning in the first year of life, followed by debilitating and complex features, including sleep disturbances, feeding problems, social‐emotional difficulties, speech deficits, and cognitive and motor impairments.
Isabel B. Hayes, Kasey E. Bedard, A. Delyla Ulm, Veronica Robbins‐Hood   +3 more
wiley   +1 more source

Suspected hyperthyroidism‐associated myoclonus in a cat

Veterinary Record Case Reports, Volume 14, Issue 4, November 2026.
Abstract A 10‐year‐old, male, neutered domestic shorthair cat presented with a 2‐week history of progressively worsening myoclonic jerks predominantly involving the head. Jerks were continuous and marked at rest, but became less intense during activity.
Magdalena Maria Dyrka, Ian Ramsey, Fiona May Keir James, Grace Kadler, Jessica Zilli, Rodrigo Gutierrez Quintana   +5 more
wiley   +1 more source

Epileptic–Dyskinetic Encephalopathy Associated with a PPP3CA Variant: Expansion of the Phenotypic Spectrum

Movement Disorders Clinical Practice, EarlyView.
Bruno Antunes Contrucci, Ursula Thomé, Larissa Aparecida Batista, Ana Laura Volpi Martins Lorenzoni, Carla Andrea Cardoso Tanuri Caldas, Americo Ceiki Sakamoto, Israel Gomy, Lisandra Mesquita Batista, Marcela Lopes de Almeida, Ana Paula Andrade Hamad, Guillermo Andrey Ariza Traslaviña   +10 more
wiley   +1 more source

Perianesthetic Complications in Genetic Mitochondrial Disease: A Review of Case Reports

Pediatric Anesthesia, Volume 36, Issue 10, Page 1217-1230, October 2026.
ABSTRACT Background Genetic mitochondrial diseases (GMDs) are a large group of genetically and clinically heterogeneous disorders caused by defects in genes encoding mitochondrial components. GMDs are grouped into named syndromes based on clinical presentation, for example, Leigh syndrome (LS).
Brittany M. Johnson, Simon C. Johnson
wiley   +1 more source

Developmental and Epileptic Encephalopathy due to Biallelic Pathogenic Variants in PIGM

Annals of Clinical and Translational Neurology, Volume 13, Issue 9, Page 1759-1771, September 2026.
ABSTRACT Objective PIGM encodes a critical enzyme in the glycosylphosphatidylinositol (GPI)‐anchor biosynthesis pathway. While promoter‐region mutations in PIGM have been associated with a relatively mild phenotype characterized by portal vein thrombosis and absence seizures, recent evidence suggests that coding‐region mutations result in a more severe
Júlia Sala‐Coromina, Anna Marcé‐Grau, Barbara Masotto, Marta Codina, Lamia BenJemaa, Yasmina Elaribi, Mónica Martinez‐Gallo, Roger Colobran, Angel Sanchez‐Montañez, Irene Valenzuela, Yoshiko Murakami, Alfons Macaya   +11 more
wiley   +1 more source

Spinal Muscular Atrophy with Progressive Myoclonic Epilepsy (SMA-PME): three new cases and review of the mutational spectrum. [PDF]

Ital J Pediatr, 2023
Najafi A, Tasharrofi B, Zandsalimi F, Rasulinezhad M, Ghahvechi Akbari M, Zamani G, Ashrafi MR, Heidari M.   +7 more
europepmc   +1 more source