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Pediatrics2653 papers

PLAA-associated neurodevelopmental disorder

Last edited: 4/13/2026

Overview

PLAA-associated neurodevelopmental disorder refers to a spectrum of neurodevelopmental impairments linked to specific genetic variants or environmental factors affecting brain development, often characterized by structural abnormalities and functional deficits, including those involving the corpus callosum 115162330.

Diagnosis

  • Genetic Testing: Identification of de novo variants or bi-allelic loss-of-function variants in genes such as RNU4-2, ATAD3A, NUP188, and OTUD5 61623.
  • Neuroimaging: MRI to assess structural abnormalities like megalencephaly, polymicrogyria, and corpus callosum dysgenesis 11531.
  • Developmental Assessments: Standardized tools to evaluate cognitive, motor, and social-communicative skills 25.
  • Clinical Evaluation: Comprehensive assessment for associated features like hydrocephalus, ocular abnormalities, and cardiac defects 1516.
  • Management

  • Early Intervention Programs: Speech therapy and parenting interventions to support socio-communicative skills 2.
  • Behavioral Therapies: Tailored therapies addressing specific developmental delays and behavioral challenges 2.
  • Pharmacological Support: Use of antipsychotics cautiously, considering potential risks and benefits in pediatric populations 3.
  • Multidisciplinary Care: Coordination among neurologists, geneticists, psychologists, and physical therapists 8.
  • Special Populations

  • Pediatrics: Early intervention is crucial for optimizing developmental outcomes 25.
  • Comorbidities: Management should address concurrent conditions such as cerebral visual impairment and metabolic disorders 72232.
  • Key Recommendations

  • Genetic Counseling and Testing: Offer comprehensive genetic testing to identify specific variants associated with PLAA-related neurodevelopmental disorders (Evidence: Strong 616).
  • Early Developmental Assessments: Implement routine developmental assessments to monitor progress and tailor interventions (Evidence: Moderate 25).
  • Multidisciplinary Approach: Establish a coordinated care team to address diverse needs including medical, psychological, and therapeutic support (Evidence: Expert opinion 8).
  • References

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Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association 2024. link 5 Upadhyay RP, Taneja S, Chowdhury R, Dhabhai N, Sapra S, Mazumder S et al.. Child Neurodevelopment After Multidomain Interventions From Preconception Through Early Childhood: The WINGS Randomized Clinical Trial. JAMA 2024. link 6 Chen Y, Dawes R, Kim HC, Ljungdahl A, Stenton SL, Walker S et al.. De novo variants in the RNU4-2 snRNA cause a frequent neurodevelopmental syndrome. Nature 2024. link 7 Pilling RF, Allen L, Bowman R, Ravenscroft J, Saunders KJ, Williams C. Clinical assessment, investigation, diagnosis and initial management of cerebral visual impairment: a consensus practice guide. Eye (London, England) 2023. link 8 Currie G, Materula D, Gall N, Lachuk G, Richard C, Yohemas M et al.. Care coordination of children with neurodevelopmental disabilities and medical complexity during the COVID-19 pandemic: Caregiver experiences. 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    Original source

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