Researchers report visual evidence supporting the presence of bacteria within the microarchitecture of the placental tissue.
A brain circuit in the mouse basal forebrain that is involved in perceiving the outside world, connects with and overrides feeding behaviors regulated by the hypothalamus.
Using a rat model for high blood pressure (hypertension), a common chronic cardiovascular condition, a University of South Florida team found that preexisting hypertension altered normal reflexes in the lungs to affect autonomic regulation of the heart when an irritant mimicking air pollution was inhaled. In particular, hypertension appeared to shift the reflex response from the 'fight-or-flight' parasympathetic nervous system to the sympathetic nervous system, which controls involuntary responses like heart rate while the body is at rest.
Plant root systems play a crucial role in ecosystems, radically impacting everything from nutrient cycling to species composition. Despite their importance, scientists are just beginning to develop the tools to understand how these complex systems are structured, how they function, and how structure and function are related. This special issue of Applications in Plant Sciences presents research from the cutting edge of root science, exploring questions from the subcellular to the ecosystem level.
Inflammation in a sound-processing region of the brain mediates ringing in the ears in mice that have noise-induced hearing loss, according to a study publishing June 18, 2019, in the open-access journal PLOS Biology by Shaowen Bao of the University of Arizona, and colleagues.
A wearable noninvasive device based on near-infrared spectroscopy (NIRS) can be used to investigate blood volume and oxygenation patterns in freely diving marine mammals, according to a study publishing June 18 in the open-access journal PLOS Biology by J. Chris McKnight of the University of St. Andrews, and colleagues. The results provide new insights into how voluntarily diving seals distribute blood and manage the oxygen supply to their brains and blubber.
There is no precise cure for digestive condition Crohn's disease, and causes are believed to vary. But one indicator of the condition -- an abnormal reaction of the immune system to certain bacteria in the intestines -- has had new light shed on it thanks to scientists at the University of Plymouth.
Are children, teenagers and adults who spend a lot of time playing video games really more obese? A meta study conducted with the the University of Würzburg has looked into this question. The cliché is true -- but only for adults.
When they graze, goats, sheep and cows often ingest bits of earth that can be damaging to their teeth. Researchers from the University of Zurich have now shown how the animals protect themselves against dental abrasion: their stomach system rinses dust and sand off the ingested food before it is chewed for the second time.
Researchers have filled two knowledge gaps: The vacuoles of plant cells can be excited and the TPC1 ion channel is involved in this process. The function of this channel, which is also found in humans, has been a mystery so far.