In new work being presented this week about the effects of exercise on the brain at the Cognitive Neuroscience Society (CNS) in San Francisco, researchers are finding that brain changes that occur after a single workout are predictive of what happens with sustained physical training over time.
Exposure to the widely used chemical bisphenol A (BPA) during pregnancy, even at levels lower than the regulated 'safe' human exposure level, can lead to changes in circadian rhythms, according to a mice study to be presented Monday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La. The researchers report these changes may be a contributing factor in hyperactivity seen in BPA-exposed mice.
The hormone oxytocin reduces the communication between different brain areas involved in the cognitive, sensory and emotional processing of food cues that people with obesity demonstrate when they look at high-calorie foods, according to research being presented Monday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.
Many people who use opioid medications long term do not produce enough testosterone or another important hormone, cortisol, according to a new study. Results of what the researchers called "the most up-to-date and most comprehensive clinical review of endocrine effects of long-term opioid use" are being presented Sunday at ENDO 2019, the Endocrine Society's annual meeting in New Orleans, La.
Similar to the dozens of Sherpas that guide hikers up treacherous Himalayan mountains to reach a summit, the nervous system relies on elaborate timing and location of guidance cues for neuronal axons--threadlike projections--to successfully reach their destinations in the body. Now, Salk Institute researchers discover how neurons navigate a tricky cellular environment by listening for directions, while simultaneously filtering out inappropriate instructions to avoid getting lost.
A new article explores the pathophysiological factors that link sleep disturbances and Alzheimer's disease. Better understanding of this connection may lead to potential diagnostics and therapeutics for Alzheimer's disease, and other neurodegenerative diseases and dementia. The article is published ahead of print in the Journal of Neurophysiology (JNP).
Selective serotonin reuptake inhibitors (SSRIs) are the most commonly prescribed medication for major depressive disorder (MDD), yet scientists still do not understand why the treatment does not work in nearly thirty percent of patients with MDD. Now, Salk Institute researchers have discovered differences in growth patterns of neurons of SSRI-resistant patients. The work has implications for depression as well as other psychiatric conditions such as bipolar disorder and schizophrenia that likely also involve abnormalities of the serotonin system in the brain.
Patients in a new Northwestern Medicine study were able to comprehend words that were written but not said aloud. They could write the names of things they saw but not verbalize them. For instance, if a patient in the study saw the word 'hippopotamus' written on a piece of paper, they could identify a hippopotamus in flashcards. But when that patient heard someone say 'hippopotamus,' they could not point to the picture of the animal.
Oxford University researchers have discovered a brain process common to sleep and aging in research that could pave the way for new treatments for insomnia.
Adult depression has long been associated with shrinkage of the hippocampus, a brain region that plays an important role in memory and response to stress. Now, new research from Washington University in St. Louis has linked participation in team sports to larger hippocampal volumes in children and less depression in boys ages 9 to 11.