Aim: To examine the long-term consequences of glycogen storage in the central nervous system (CNS) for classic infantile Pompe disease using enzyme replacement therapy.
Method: Using neuropsychological tests and brain magnetic resonance imaging (MRI), we prospectively assessed a cohort of 11 classic infantile Pompe patients aged up to 17 years.
Results: From approximately age 2 years onwards, brain MRI showed involvement of the periventricular white matter and centrum semiovale. After 8 years of age, additional white-matter abnormalities occurred in the corpus callosum, internal and external capsule, and subcortical areas. From 11 years of age, white-matter abnormalities were also found in the brainstem. Although there seemed to be a characteristic pattern of involvement over time, there were considerable variations between patients, reflected by variations in neuropsychological development. Cognitive development ranged from stable and normal to declines that lead to intellectual disabilities.
Interpretation: As treatment enables patients with classic infantile Pompe disease to reach adulthood, white-matter abnormalities are becoming increasingly evident, affecting the neuropsychological development. Therefore, we advise follow-up programs are expanded to capture CNS involvement in larger, international patient cohorts, to incorporate our findings in the counselling of parents before the start of treatment, and to include the brain as an additional target in the development of next-generation therapeutic strategies for classic infantile Pompe disease.
What This Paper Adds: In our long-term survivors treated intravenously with enzyme replacement therapy, we found slowly progressive symmetric white-matter abnormalities. Cognitive development varied from stable and normal to declines towards intellectual disabilities.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1111/dmcn.13740 | DOI Listing |
Epilepsy Behav Rep
March 2025
Section of Pediatric Neurology, Department of Pediatrics, The University of Chicago, Chicago, IL, United States.
Dynein Cytoplasmic 1 Heavy chain 1 (-related disorders are a spectrum of conditions including neurodevelopmental disorders, congenital brain malformations, and neuromuscular diseases. These clinical features may co-occur, with four main disease entities including epilepsy with developmental epileptic encephalopathy such as infantile epileptic spasms syndrome (IESS) and Lennox-Gastaut syndrome (LGS), axonal Charcot-Marie-Tooth disease type 2O, spinal muscular atrophy with lower extremity-predominance (SMALED), and congenital cortical malformations. Epilepsy associated with this disorder often becomes drug-resistant and requires multiple medications and, in some cases, non-pharmacological treatments.
View Article and Find Full Text PDFJ Inherit Metab Dis
January 2025
Speech and Language, Murdoch Children's Research Institute, Parkville, Victoria, Australia.
CLN2 and CLN3 diseases, the most common types of Batten disease (also known as neuronal ceroid lipofuscinosis), are childhood dementias associated with progressive loss of speech, language and feeding skills. Here we delineate speech, language, non-verbal communication and feeding phenotypes in 33 individuals (19 females) with a median age of 9.5 years (range 3-28 years); 16 had CLN2 and 17 CLN3 disease; 8/15 (53%) participants with CLN2 and 8/17 (47%) participants with CLN3 disease had speech and language impairments prior to genetic diagnosis.
View Article and Find Full Text PDFNeuropediatrics
January 2025
Department of Inborn Errors of Metabolism, Dr. von Hauner Children's Hospital, Ludwig-Maximilians-University Munich, Munich, Germany.
Ceroid lipofuscinosis type 2 (CLN2) is caused by biallelic pathogenic variants in the gene, encoding lysosomal tripeptidyl peptidase 1 (TPP1). The classical late-infantile phenotype has an age of onset between 2 and 4 years and is characterized by psychomotor regression, myoclonus, ataxia, blindness, and shortened life expectancy. Vision loss occurs due to retinal degeneration, usually when severe neurological symptoms are already evident.
View Article and Find Full Text PDFDrug Des Devel Ther
January 2025
Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China.
Medicinal plants are fundamental sources of natural products with high chemical diversity and specificity as novel lead compounds with diverse pharmacological activities. . is an important traditional Chinese medicine used to treat fever caused by cold, wind-fire toothache, headache, bruises and sprains, irregular menstruation, and infantile eczema.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!