When it comes to male reproductive fertility, timing is everything. Now scientists are finding new details on how disruption of this timing may contribute to male infertility or congenital illness. Researchers at Cincinnati Children's Hospital Medical Center report in Genes & Development identifying the key molecular and genetic switch that activates production of healthy male sperm -- but only when the time is right.
The German Federal Institute for Risk Assessment (BfR) assessed the possible health risks of large hard sugar balls back in 2010. The focus was in particular on the size from which the balls (when sucked to a small size) can slide from the oral cavity into the throat under unfavourable circumstances, resulting a blocking of the airways.
A study in 23 EU countries found that larger price differences between high and low priced cigarettes are associated with higher infant mortality.
A growing body of evidence suggests access to safe, natural areas improves health across a wide variety of areas, including heart health, mental health, weight management, ADHD, and stress among children. Researchers will present a summary of peer-reviewed scientific literature documenting the many benefits to students from 'green schoolyards.'
Roughly 300,000 Texans living in impoverished border communities known as 'colonias' are facing substandard housing, lack of resources and exposure to toxic stress. New research finds these communities are also ill-equipped to face a natural disaster.
The authors believe theirs is among the first human studies to investigate the influence of phthalate exposure on sperm epigenetics, embryo development and whether DNA methylation in sperm cells may be a path by which a father's environmental exposure influences these endpoints. DNA methylation, one mechanism of epigenetics, is a chemical tag on DNA that does not change the gene sequence but is involved in controlling gene expression.
Indoor air pollution can be a problem in many homes, even in eco-friendly buildings. Thanks to a new innovative study led by Silent Spring Institute, researchers have a better idea of where these pollutants come from -- which ones come from chemicals leaching out of building materials and which ones from the personal items people bring into their homes. The findings could inform the development of new green building standards and lead to healthier housing, especially for low-income communities.
Two reports published in the Journal of Nursing Scholarship reveal important insights on emergency preparedness, recovery, and resilience from nurses working at NYU Langone Health's main hospital during Superstorm Sandy in 2012.
Researchers have found that maternal e-cigarette vaping is linked to an increased risk of allergic asthma in offspring. The study was carried out in mice, but Dr. Pawan Sharma will tell the European Respiratory Society International Congress: 'These findings highlight that e-cigarette use during pregnancy should not be considered safe.'
Two new papers reveal striking racial and ethnic disparities in the incidence and prevalence of lupus, a systemic autoimmune disease that can affect virtually any organ system. The reports, which are published in Arthritis & Rheumatology, provide the latest information from lupus registries in California and New York.