[Children and adolescents with intellectual disabilities studied with genetic tests according to their clinical phenotype].

Introduction: Intellectual disability (ID) is a neurodevelopmental disorder characterized by limitations in intellec tual and adaptive functioning, of various etiologies, including genetic causes.

Objective: to describe genetic studies carried out in a series of children and adolescents with ID of previously undetermined etiology, considering their phenotypic characteristics.

Patients And Method: Descriptive study of a series of patients with ID aged 6 to 18 years.

[Zinc in the therapy of the attention-deficit/hyperactivity disorder in children. A preliminar randomized controlled trial].

The attention-deficit/hyperactivity disorder (ADHD) is a neurological/behavioral disorder which begins in childhood. Zinc has a potential role as an adjuvant therapy for ADHD. The objective was to evaluate the effect ofZn supplementation on behavior, as a complementary therapy to metylphenidate, in pediatrics patients with ADHD.