A new dating method, uranium-helium thermochronology, has shed light on the mystery of missing copper ore at the giant Chuquicamata mine in Chile. The study suggests that part of the rich deposit may have been displaced millions of years ago by tectonic movement along a fault.
Researchers found that alcohol sensitizes dopamine and serotonin neurons, leading to excitotoxicity and neuronal damage. Brain-derived neurotrophic factor (BDNF) may protect against this excitotoxicity, suggesting a potential treatment for alcoholics undergoing withdrawal.
A study funded by NIAAA found a common linkage between prenatal alcohol exposure and attention-deficit/hyperactivity disorder (ADHD), suggesting reduced dopamine neurons may contribute to hyperactivity. The research suggests both immediate and long-lasting effects on the brain's ability to focus.
Researchers have discovered that environmental stimuli like smells can induce a neurochemical response in the brain that may reinstate alcohol-seeking behavior after withdrawal. This study suggests that understanding the mechanisms involved in relapse can lead to the development of medications that target specific critical neural systems.
A recent study found that alcohol consumption during pregnancy can cause early delivery, with potential health consequences including low birth weight and increased risk of death or long-term illness. Researchers believe a critical period for drinking may exist, and prevention is key to reducing premature births.