Related Experiment Video
Updated: Jun 4, 2026

05:19
Practical Methodology of Cognitive Tasks Within a Navigational Assessment
Published on: June 1, 2015
Learning disabilities and language pathology in patients with galactosemia
R K Rasmussen1, A B Andreassen, P Strømme
1Department of School Hospital Teaching, University of Oslo, Rikshospitalet.
Logopedics, Phoniatrics, Vocology
|February 1, 2011
Summary
Even with early dietary treatment, children with galactosemia face developmental issues. This study highlights risks of intellectual and speech disabilities, including verbal dyspraxia, in galactosemia patients.
Area of Science:
- Metabolic disorders
- Neurodevelopmental disorders
- Pediatric medicine
Background:
- Galactosemia, a metabolic disorder, often leads to developmental abnormalities despite dietary management.
- Early diagnosis and adherence to a galactose-free diet are crucial for managing galactosemia.
- Persistent developmental challenges underscore the need for further investigation into galactosemia's long-term effects.
Purpose of the Study:
- To assess neurological, general developmental, and language/speech outcomes in galactosemia patients on a galactose-free diet.
- To identify specific disabilities associated with galactosemia, even with optimal medical treatment.
- To explore the potential link between galactosemia and conditions like verbal dyspraxia.
Main Methods:
- Evaluation of 8 patients with galactosemia, aged 9 months to 19 years.
- All patients were on a galactose-free diet from an early stage.
- Comprehensive assessment of neurological functioning, general development, and language/speech development.
Main Results:
- Patients with galactosemia, even when treated, are at risk for developmental disabilities.
- Significant findings include mental retardation and speech/language impairments.
- Verbal dyspraxia was observed in 3 of 6 patients with acquired verbal language, all with IQ ≤ 70.
Conclusions:
- Medical management of galactosemia does not fully prevent developmental abnormalities.
- Galactosemia patients are susceptible to intellectual and speech disabilities.
- Verbal dyspraxia may be a common symptom in galactosemia patients with intellectual disability.
Related Concept Videos
Glucose Transporters
Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Facilitated diffusion-glucose transporters (GLUTs) are encoded by the solute-linked carrier (SLC) family 2, subfamily A gene family, or SLC2A. The 14 GLUT protein members are distributed into three classes:
Inborn Errors of Metabolism
Phenylketonuria (PKU) is a protein metabolism disorder characterized by high blood levels of the amino acid phenylalanine. This results from a mutation in the gene responsible for phenylalanine hydroxylase, an enzyme that converts phenylalanine into tyrosine. When this enzyme is deficient, phenylalanine builds up in the blood, leading to symptoms such as vomiting, rashes, seizures, growth deficiency, and severe mental retardation. An early diagnosis and a diet restricting phenylalanine intake...
Learning Disabilities
Learning disabilities are cognitive disorders caused by neurological impairments that affect cognitive functions like language and reading, without indicating overall intellectual or developmental challenges. These disabilities differ from global intellectual or developmental disabilities as they are limited to distinct cognitive functions. Common learning disabilities include dysgraphia, dyslexia, and dyscalculia, each of which impacts unique aspects of learning.
Dyslexia
Dyslexia is a...
Dyslexia
Dyslexia is a...
Language and Cognition
Language serves as a bridge between ideas and communication, influencing how individuals perceive and interact with the world. Psychologists have long debated whether language shapes thought or vice versa. This discussion gained grip with Edward Sapir and Benjamin Lee Whorf in the 1940s, who proposed that language determines thought, a concept known as linguistic determinism. They suggested that the vocabulary and structure of a language influence how its speakers think and perceive reality.
Lysosomal Hydrolases
Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...
Introduction to Language of Pathophysiology ll
This lesson explores key terms that describe how diseases progress, their outcomes, and their distribution in populations.Diagnostic tests identify diseases and monitor treatment. These include blood and urine tests, biopsies, imaging (X-ray, MRI), and detection of infectious agents.Remission is a reduction or disappearance of symptoms.Exacerbation refers to the worsening of symptoms, such as increased wheezing during an asthma attack.A precipitating factor triggers an acute episode, while a...

