[Guidelines for the prevention, diagnosis and treatment of obesity. Update 2024].

This document updates the "Clinical practice guidelines for the prevention, diagnosis and treatment of obesity" issued by the Nutrition Committee of the Argentine Pediatric Society, published in Archivos Argentinos de Pediatría in 2011. Obesity has a multifactorial etiology. It is recommended to diagnose it taking into account anthropometry, personal and family history, and clinical data that indicate complications (sleep apnea, elevated alanine transaminase and/or glycemia, and other components of the metabolic syndrome).

Most of the photons that reionized the Universe came from dwarf galaxies.

The identification of sources driving cosmic reionization, a major phase transition from neutral hydrogen to ionized plasma around 600-800 Myr after the Big Bang, has been a matter of debate. Some models suggest that high ionizing emissivity and escape fractions (f) from quasars support their role in driving cosmic reionization. Others propose that the high f values from bright galaxies generate sufficient ionizing radiation to drive this process.

A high black-hole-to-host mass ratio in a lensed AGN in the early Universe.

Early JWST observations have uncovered a population of red sources that might represent a previously overlooked phase of supermassive black hole growth. One of the most intriguing examples is an extremely red, point-like object that was found to be triply imaged by the strong lensing cluster Abell 2744 (ref. ).

Mismatch between the prevalence of overweight and obese children and adolescents and recording in electronic health records: a cross-sectional study.

Background: The prevalence of obesity has increased dramatically in recent years. An electronic health record (EHR) can be used to identify and manage overweight and obesity by providing timely information.

Objective: To estimate the prevalence of overweight and obesity using anthropometric data from an EHR and to compare it with the frequency of diagnoses of 'overweight' and 'obesity' registered by pediatricians.