This paper provides valuable insights into how the dynamic function of the quadriceps affects knee stability during landing in females, especially those recovering from ACL reconstruction. This has broad implications for improving clinical outcomes in ACL rehabilitation and for developing targeted injury prevention programs.

Leptin, a hormone produced by fat cells, plays an important role in regulating energy balance and body weight. It acts on various targets, including specific regions of the brain such as the hypothalamus and the dorsal vagal complex (DVC).

Previous studies have shown that leptin is also required for normal bone growth and turnover. Leptin deficiency leads to impaired bone development, while providing leptin to leptin-deficient mice can restore their skeletal abnormalities.

However, the role of leptin in regulating bone metabolism in individuals with normal leptin levels is less clear.

This study investigates how various activities during the post-lockdown COVID-19 period affected children's emotional well-being.

This editorial highlights the main findings and implications of eight articles published in the current issue of Ecology of Food and Nutrition (EFN), a journal that explores the complex relationships between food, nutrition, health, and various ecological, social, and cultural factors.

The studies were conducted in diverse global contexts, including Brazil, India, Indonesia, Mexico, Mozambique, Nigeria, and the United States, and focus on critical issues such as household food insecurity, vitamin D deficiency, child nutritional status, and barriers to accessing healthy foods.

This study provides important evidence of long-term depression risk after SARS-CoV-2 infection in veterans, highlighting the need for long-term mental health monitoring and treatment, especially of psychological depressive symptoms, in this population.

This research used two different platforms to analyze the serum proteome of individuals over 100 years old. They found 44 proteins associated with extreme old age, and 80 proteins that showed significant changes in expression related to pathways such as blood coagulation and IGF signaling.

This study found that a more favorable perceived built environment was associated with a lower risk of all-cause mortality and major cardiovascular disease in the Chinese population, particularly in urban areas and among females. This suggests that improving community conditions, such as amenities and transportation, could have a positive impact on health outcomes.

While more research is needed to unravel the complex downstream impacts of SARS-CoV-2 on health and healthcare, this study provides an important piece of the puzzle. It suggests that long after the acute stage of infection, individuals with a history of SARS-CoV-2 infection may need extra support and seamless access to outpatient care to prevent unnecessary hospitalizations. Understanding and addressing these needs will be key to optimizing both patient outcomes and health system efficiency in the aftermath of the COVID-19 pandemic.

While traditional qualitative methods like interviews and focus groups are valuable for small populations, they are not feasible for large-scale, continuous studies due to resource constraints. Social media, however, offers a rich source of data that can provide insights into public perceptions, behaviors, and misconceptions about children's environmental health.

The findings offer ways to encourage collaboration among organizations that support youth sexual health in low-income, urban, African American communities without relying on formal structures.

This study has the potential to reshape the understanding of treatment success in cocaine addiction by highlighting the benefits of reduced use, rather than complete abstinence. The anticipated results could lead to changes in treatment protocols, influence policy, and ultimately improve the health and well-being of individuals with cocaine use disorder.

There is moderate evidence indicating that there is a delay in anterior cruciate ligament (ACL) surgery for pediatric patients with public insurance compared to those with private insurance.

This longitudinal study provides novel evidence linking aircraft noise exposure to obesity risk in U.S. women, with potential implications for environmental health policy and understanding mechanistic pathways between noise, metabolic health, and chronic disease. The conclusions highlight the importance of considering noise when assessing environmental determinants of obesity and cardiometabolic disease.

This study investigated the association between ambient air pollution and spontaneous abortion (SAB) incidence in North American couples trying to conceive. The study analyzed data from 4643 participants in the United States (U.S.) and 851 participants in Canada.

The results showed that higher concentrations of particulate matter 2.5 mm (PM2.5) were associated with a higher incidence of SAB in Canada, but not in the U.S. No significant associations were found between nitrogen dioxide (NO2) or ozone (O3) concentrations and SAB incidence.

The findings suggest that ambient PM2.5 exposure may increase the risk of SAB in Canada. However, further research is needed to understand the underlying mechanisms and to develop strategies for protecting pregnant individuals from air pollution.