Publications by authors named "J B De Mello"
Introduction: Excess weight during pregnancy is a condition that can affect both mother and fetus, through the maternal-fetal interface, which is constituted by the placenta and umbilical cord. The umbilical vein is responsible for transporting oxygen and nutrients to the fetus, and its proper functioning depends on the integrity of its structure. The remodeling of the umbilical vein represents one of the causes of inadequate transport of nutrients to the fetus, being potentially harmful.
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- Ecosystem management and restoration can boost carbon storage, but knowledge gaps about soil organic carbon (SOC) in specific ecosystems challenge effective climate policies.
- The paper analyzes SOC stock variability in Brazil's main grassy ecosystems and compiles a comprehensive dataset from 182 studies, including soil properties and carbon stocks across various locations.
- Findings reveal that subtropical grasslands have the highest SOC stocks, while other ecosystems like the Cerrado and Amazon are notable for their subsurface carbon levels, with implications for Brazil's greenhouse gas inventory.
Objectives: To evaluate the antifungal activity of extracts and compounds from against clinically relevant species, notably , and investigate possible mechanisms of action using electron microscopy and techniques.
Methods: Extracts and fractions of were obtained through turboextraction and partitioning, while the isolated compounds were previously purified. The ethyl acetate fraction (EAF) was characterized by HPLC.
Effects of different supervised and structured physical exercise on the physical fitness trainability of children and adolescents: a meta-analysis and meta-regression : Physical fitness trainability in children and adolescents' health.
BMC Pediatr
December 2024
Background: Physical fitness has been considered an important health indicator. Several factors can impact the increase in physical fitness in children and adolescents, including chronological age, sex and BMI, in addition to training variables such as weekly frequency, session and intervention duration, and types of exercises performed. To know the importance of variables that can impact physical fitness, it is important for health professionals to identify the most efficient way of prescribing physical exercises for children and adolescents.
View Article and Find Full Text PDFObjective: The objective of this study was to map the instruments used to assess parental support for physical activity and their constructs and psychometric properties.
Data Source: A scoping review was conducted, with searches in seven electronic databases and reference lists, covering articles available until April 2022. Original and cross-sectional studies were sought that used questionnaires, inventories or questions to assess parental support for the practice of physical activity and sports by children and adolescents aged 6 to 17 years and that assessed the barriers reported by parents or guardians for not offering support.