Communicative and psycholinguistic abilities in children with phenylketonuria and congenital hypothyroidism

Mariana Germano Gejão1, Amanda Tragueta Ferreira, Greyce Kelly Silva

  • 1Department of Speech-Language Pathology and Audiology, Bauru School of Dentistry, University of São Paulo, Bauru, SP, Brazil.

Insights

Congenital hypothyroidism (CH) and phenylketonuria (PKU) can impact children's development and communication skills. Early speech and language therapy is crucial for social integration and learning in affected children.

Area of Science:

  • Medical Genetics
  • Developmental Pediatrics
  • Speech-Language Pathology

Background:

  • Neonatal screening programs identify infants with inborn errors of metabolism like congenital hypothyroidism (CH) and phenylketonuria (PKU).
  • Early diagnosis and intervention are critical for managing CH and PKU to mitigate developmental impacts.
  • A partnership between a neonatal screening program and a university's speech-language pathology department was established to research developmental outcomes.

Purpose of the Study:

  • To describe the communicative and psycholinguistic abilities of children diagnosed with CH and PKU.
  • To identify potential developmental risks and alterations in these children.

Main Methods:

  • Sixty-eight children (25 with PKU, 43 with CH) aged 1-120 months participated.
  • A battery of standardized tests assessed communication behavior, language milestones, vocabulary, developmental level, and psycholinguistic abilities.
  • Instruments were selected based on children's age and developmental stage.

Main Results:

  • Children with PKU and CH are at risk for alterations in motor, cognitive, linguistic, adaptive, and personal-social abilities, particularly in early childhood.
  • Psycholinguistic alterations were noted, especially post-preschool age.
  • CH was associated with attention deficits, language, and cognitive issues; PKU with attention deficits, hyperactivity, and personal-social/motor adaptive challenges.

Conclusions:

  • CH and PKU can lead to significant communicative and psycholinguistic deficits.
  • These deficits can impair social integration and learning.
  • Speech and language pathology intervention is essential for individuals with CH and PKU to address these challenges.
Abstract

Related Concept Videos

Language and Cognition01:27

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.
Inborn Errors of Metabolism01:20

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...
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...
Language Development01:22

Language Development

Children master language quickly and with relative ease, supported by both biological predisposition and reinforcement. B. F. Skinner (1957) proposed that language is learned through reinforcement, while Noam Chomsky (1965) argued that language acquisition mechanisms are biologically determined.
The critical period for language acquisition suggests that the ability to acquire language is at its peak early in life. As people age, this proficiency decreases. Language development begins very...
Learning Disabilities01:25

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...
Hypothyroidism II: Pathophysiology01:23

Hypothyroidism II: Pathophysiology

Hypothyroidism is a disorder characterized by insufficient production of thyroid hormones, which regulate metabolism, energy balance, and multiple organ systems.TypesHypothyroidism is classified based on the level of dysfunction. Primary hypothyroidism results from intrinsic thyroid gland dysfunction, causing reduced hormone production despite normal or increased stimulation. Secondary hypothyroidism arises from inadequate thyroid-stimulating hormone (TSH) secretion by the pituitary. Tertiary...