[Obesity and insulin resistance among adolescents from Chiapas].

Objective: The aim of this study was to assess the association of overweight and obesity with insulin resistance, hypertension, and hyperlipidemic among 12 to 15 year olds from private and public schools in Chiapas.

Methods: This was a cross-sectional study with a random selection of 259, 12 to 15 year old teenagers from private and public middle schools. Conventional methods were used to measure body weight, height and blood pressure.

Familial true hermaphrodism in three siblings: clinical, cytogenetic, histological and hormonal studies.

Three affected siblings with the hermaphrodism are described. The propositi showed the following characteristics: male phenotype and gender role, hypospadias, bilateral scrotal ovotestes with palpable nodules, and absence of müllerian structures. The X chromatin was positive and the Y chromatin was negative in the 3 affected subjects.