dopamine

Researchers have developed a carbon paste electrode, modified with an azo dye, that can simultaneously detect paracetamol, dopamine and uric acid. The finding is drawing attention as the term paracetamol trends in Germany. Such sensors could simplify biochemical testing, since these three compounds often need to be measured together in medical and research settings.

A widely shared piece explores a familiar struggle: the design is done, the draft written, the code mostly works, and yet the project sits unfinished. The article looks at why people with ADHD tend to stall in the final stretch of a project, examining the loss of novelty and dopamine-driven motivation once the hard problems are solved, and offering practical strategies to push through and actually finish.

Researchers report that a dopamine circuit connects the body's circadian rhythms with wakefulness, offering a mechanistic link between the internal biological clock and the brain systems that control arousal. The finding could help explain why sleep-wake timing is so tightly tied to daily cycles and may inform future approaches to sleep and circadian-related disorders.

Scientists conducted brain scans on 24 people with long COVID and found signs of injury to dopamine neurons. The discovery may help explain some of the illness's most debilitating symptoms, including fatigue and cognitive difficulties. Researchers say the findings offer a biological marker for a condition that has often lacked clear physical evidence, potentially guiding future diagnosis and treatment of long COVID.

Researchers report that depleting dopamine in mice has revealed a potential new target for ADHD treatment. The findings could guide the development of drugs that address attention deficit hyperactivity disorder through mechanisms other than current stimulant medications, though the work remains at an early, preclinical stage and has not yet been tested in humans.