Results 181 to 190 of about 8,695 (262)

Loss of Function of AFG3L2 Leading to Developmental and Epileptic Encephalopathy

open access: yesCNS Neuroscience &Therapeutics, Volume 32, Issue 7, July 2026.
Biallelic loss‐of‐function AFG3L2 variants define a severe DEE phenotype with microcephaly, spasticity, and progressive cerebral atrophy. Multi‐omics and patient fibroblasts reveal aberrant splicing, reduced AFG3L2, defective OPA1 processing, mtDNA depletion, fragmented mitochondria, and impaired respiration, implicating m‐AAA protease failure in early
Zou Pan   +9 more
wiley   +1 more source

Neonatal developmental and epileptic encephalopathy with movement disorder and arthrogryposis: A shared phenotype across brain‐expressed sodium channelopathies

open access: yesEpilepsia, Volume 67, Issue 7, Page 3629-3643, July 2026.
Abstract Objective Neonatal developmental and epileptic encephalopathy with movement disorder and arthrogryposis (NDEEMA) represents the most severe end of the gain‐of‐function (GOF) SCN1A disorder spectrum. Sporadic cases of congenital arthrogryposis have also been reported in individuals with SCN2A‐, SCN3A‐, and SCN8A‐related developmental and ...
Sopio Gverdtsiteli   +43 more
wiley   +1 more source

Compound heterozygous SLC12A5 variants expand the molecular and functional spectrum of KCC2‐developmental and epileptic encephalopathy

open access: yesEpilepsia, Volume 67, Issue 7, Page 3657-3673, July 2026.
Overview of the multimodal experimental approach integrating clinical, genetic, in silico, and in vitro investigations. Clinical: Representative EEG recording setup and ictal traces from affected patients. Genetic: Pedigrees for Families A and B highlighting the inheritance of the four identified SLC12A5 variants (A1, A2, B1, B2).
Mira Hamze   +19 more
wiley   +1 more source

First Revision of the Guidelines for the Diagnosis and Management of Remethylation Disorders

open access: yesJournal of Inherited Metabolic Disease, Volume 49, Issue 4, July 2026.
ABSTRACT This guideline summarizes diagnostic and therapeutic approaches based on a systematic literature review and evidence evaluation using the GRADE methodology. Given the limited high‐quality data, expert consensus was additionally obtained through a modified Delphi process.
Giorgia Olivieri   +26 more
wiley   +1 more source

WWOX Mutation as a Rare Cause of Neonatal‐Infantile Parkinsonism Mimicking a Neurotransmitter Disorder: A Case Report

open access: yes
Journal of Paediatrics and Child Health, EarlyView.
Ozge Serce Pehlevan   +3 more
wiley   +1 more source

Long‐Term Follow‐Up of Patients With Mitochondrial Carbonic Anhydrase VA Deficiency. A Case Report and Literature Review

open access: yesJIMD Reports, Volume 67, Issue 4, July 2026.
ABSTRACT Mitochondrial carbonic anhydrase VA (CA‐VA) deficiency is a rare inherited metabolic disorder caused by biallelic variants of the CA5A gene. It presents with hyperammonemia, lactic acidosis, and ketonuria, with or without hypoglycemia. We report the long‐term follow‐up of the first two reported cases of CA‐VA deficiency: a 16‐year‐old female ...
Shaymaa Shurrab   +5 more
wiley   +1 more source

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