Psychopathological features in Noonan syndrome

Area of Science:

• Neuroscience
• Genetics
• Psychiatry

Background:

• Noonan syndrome (NS) is a genetic disorder with diverse symptoms including cognitive and behavioral issues.
• Recent research focuses on the prevalence and characteristics of psychiatric conditions in NS.
• This study investigates attention deficit and hyperactivity disorder (ADHD), anxiety, and depressive symptoms in NS patients.

Purpose of the Study:

• To evaluate the prevalence of ADHD, anxiety, and depressive symptoms in a cohort of individuals with Noonan syndrome.
• To characterize the psychiatric features associated with NS.

Main Methods:

• Utilized the Kiddie Schedule for Affective Disorders and Schizophrenia for School-Age Children Present and Lifetime version (K-SADS PL) for psychiatric disorder assessment.
• Employed the Multidimensional Anxiety Scale for Children (MASC) and Children's Depression Inventory (CDI) for anxiety and depressive symptoms.
• Assessed ADHD using Conners Teacher and Parent Rating Scales-long version (CRS-R).

Main Results:

• The study included 27 individuals (average age 10.4 years) with NS or related conditions.
• Seventy percent of individuals exhibited ADHD features, with 6 meeting DSM-IV-TR criteria.
• Anxiety symptoms were present in 37% of the cohort, with 2 diagnosed with anxiety disorder.

Conclusions:

• Individuals with NS have a significantly high risk for psychiatric disorders and symptoms in childhood.
• Preschool screening for inattentive, hyperactivity/impulsivity, and anxiety/depressive symptoms is recommended for early intervention.
• Further prospective studies are needed to confirm findings and refine the psychopathological profile of NS.