Cognitive-Behavioral Profile in Pediatric Patients with Syndrome 5p-; Genotype-Phenotype Correlationships

Area of Science:

• Neurogenetics
• Developmental Pediatrics
• Behavioral Neuroscience

Background:

• 5p minus Syndrome (S5p-) is a neurodevelopmental disorder linked to chromosome 5p deletion.
• Phenotypic and genetic variability is notable, with a characteristic cat-like cry.
• Limited research exists on the cognitive-behavioral profiles of individuals with S5p-.

Purpose of the Study:

• To describe the developmental profile of 45 children with S5p- across biomedical, genetic, cognitive, and behavioral domains.
• To establish genotype-phenotype relationships, specifically cognitive-behavioral profiles.
• To provide an interdisciplinary perspective on S5p-.

Main Methods:

• Neuropsychological assessments were conducted on a cohort of 45 children diagnosed with S5p-.
• Data collection encompassed biomedical, genetic, cognitive, and behavioral aspects.
• Statistical analyses were employed to identify correlations and patterns.

Main Results:

• Children with S5p- generally present with higher cognitive levels compared to communicative and motor skills.
• Expressive language deficits are associated with increased frequency and severity of behavioral issues, notably self-harm, particularly in girls.
• Compulsive behaviors and preference for monotony correlate with higher cognitive levels.
• A significant correlation exists between the extent of 5p genetic material loss and cognitive ability.

Conclusions:

• This study presents the first detailed cognitive-behavioral profile of a cohort with S5p-.
• Expressive language development plays a crucial role in modulating behavioral aspects in individuals with lower cognitive abilities.
• Developing targeted verbal or alternative communication strategies is essential for individuals with S5p-.