[Changes of the thyroid hormone status in children with cerebral palsy and other neurological pathology]

Area of Science:

• Pediatric Endocrinology
• Neuroscience
• Developmental Biology

Background:

• Neurological pathologies in children, such as cerebral palsy and perinatal central nervous system (CNS) lesions, can impact various physiological systems.
• Thyroid hormones (triiodothyronine - T3 and thyroxine - T4) and thyrotropin (TSH) play crucial roles in neurodevelopment and overall metabolic regulation.
• Understanding the interplay between neurological conditions and thyroid function is essential for comprehensive patient management.

Purpose of the Study:

• To investigate the levels of thyroid hormones (T3, T4) and thyrotropin (TTG) in children diagnosed with neurological pathologies.
• To explore the correlation between thyroid hormone levels and factors such as patient age, severity of neurological condition, maternal pregnancy history, and specific comorbidities.
• To determine if thyroid hormone imbalances are associated with specific neurological deficits like mental retardation or skeletal malformations.

Main Methods:

• Blood plasma samples were collected from 142 children with diagnosed neurological pathologies (cerebral palsy, perinatal CNS lesion).
• Thyroid hormone (T3, T4) and thyrotropin (TTG) levels were measured in the plasma samples.
• Data were compared against a control group of healthy children.
• Statistical analyses were performed to assess correlations between hormone levels and clinical factors including age, disease severity, maternal history (cystitis, preterm delivery threat), mental retardation, and osseous tissue dysplasia.

Main Results:

• Children with neurological pathologies exhibited significantly higher levels of T3 and T4, and lower levels of TTG compared to healthy controls.
• Thyroid hormone levels varied based on the child's age and the severity of the neurological condition.
• Maternal health during pregnancy influenced hormone levels; higher T3 and T4 were observed with maternal cystitis or threatened preterm delivery.
• Reduced TTG levels correlated with mental retardation in the patient group.
• Elevated TTG levels were noted in patients with significant osseous tissue dysplasia (osteoclast, osteopathy).

Conclusions:

• Neurological pathologies in children are associated with significant alterations in thyroid hormone profiles, characterized by elevated T3/T4 and reduced TTG.
• Factors such as patient age, disease severity, maternal pregnancy complications, and comorbidities like mental retardation and skeletal dysplasia are linked to these thyroid function changes.
• These findings highlight the complex relationship between neurological development and thyroid regulation, suggesting the need for careful monitoring of thyroid status in pediatric neurological patients.