Trajectories in waist circumference and waist-to-height ratio with left ventricular hypertrophy in childhood.

Background And Objective: Previous studies have shown positive associations of waist circumference (WC) and waist-to-height ratio (WHtR) with left ventricular hypertrophy (LVH) among children and adolescents. However, most of these studies were cross-sectional or limited to only two time points. We aim to estimate the association of trajectories in WC and WHtR with LVH during childhood.

Changes in sleep duration status and risk of high carotid intima-media thickness in children: A prospective cohort study.

Background: Short sleep duration is common in the pediatric population and is associated with an increased risk of high carotid intima-media thickness (cIMT), a marker of subclinical atherosclerosis. However, little is known regarding whether changes in sleep duration status over time can alter the risk of high cIMT in children.

Objectives: To examine the association between changes in sleep duration status and high cIMT in a cohort study of Chinese children.

A proposal to simplify the definition of pediatric hypertension: bridging the gap between perception and action.

Background: The importance of routine hypertension screening in children and adolescents is now well recognized. However, it is often undiagnosed in clinical practice, partly due to the reliance on a complex blood pressure (BP) percentile-based table with hundreds of cutoffs by age, sex, and height.

Main Text: Many studies have explored simplified tools for screening hypertension in children and adolescents, such as simplified formulas, simplified BP tables by age and sex group, by age group, or by height group, and the BP to height ratio.

Photochemistry of dissolved organic matter derived from compost.

The extensive application of compost to enhance soil quality highlights the crucial role of dissolved organic matter (DOM) derived from compost in both terrestrial and aquatic ecosystems, influencing carbon cycling and the fate of contaminants. However, the photochemical behavior of compost-derived DOM (DOM) remains poorly understood. In this study, we investigated the photochemical transformation and photoactivity of DOM derived from typical composts produced from cow manure (CDOM) and pig manure (PDOM).

Mechanochemical Release of 9,10-Diphenylanthracene via Flex-Activation of Its 1,4-Diels-Alder Adduct.

Flex-activated mechanophores capable of releasing small molecules utilize bond bending to facilitate their mechanochemical activation without compromising the overall macromolecular architecture, which have great potential in various applications. However, the development of such mechanophores remains underexplored. Here we report a novel flex-activated mechanophore based on the 1,4-Diels-Alder (DA) adduct of 9,10-diphenylanthracene (DPA) with acetylenedicarboxylate (ADC).