The vascular barrier in the choroid plexus locks down access to the brain in response to gut inflammation that causes IBD. The dysregulated activity of the gut-brain vascular axis appears to protect the brain from inflammation. However, the mechanism may increase the risk of both cognitive and mental health problems associated with IBD.
A new report in Science identifies a neural circuit in the dorsomedial prefrontal cortex of mouse brains that may play a key role in social dominance. Using optogenetics, researchers were able to target neurons in the dmPFC to help boost a mouse's chance of 'winning' in an aggressive encounter.
Computational power is amplified in the brain by newly discovered action potentials in dendrites.
Researchers found tiny deposits of elemental copper and iron in the brains of Alzheimer's patients. The findings may shed new light on how these elemental metals contribute to Alzheimer's development and progression.
A new synthetic conduit can bridge large nerve gaps by guiding the regrowth of neurons. When implanted into the arms of macaques with nerve defects in their arms, the conduit boosted neurogenesis and the nerve's ability to conduct signals for a year.
A new study questions traditional views of how memories are formed and stored in the brain. Additionally, researchers propose a new mechanism for learning.
Researchers report up to 25% of same-sex behaviors are associated with genetic variants. The study identified five new genes associated with sexual behavior. They report there is no one single gene linked to same-sex sexual behavior or orientation, but numerous genes, as well as other factors which contribute. Researchers emphasize the markers may be unreliable in predicting same-sex behavior but may influence the likelihood for specific relationship choices.
Researchers have identified a subset of neurons in a region of the hypothalamus that play a critical role in regulating feeding and appetite in mice.