Medical research

More people and fewer wild fish lead to an omega-3 supply gap

Omega-3 fatty acids are essential components of healthy diets for both humans and fish. The dramatic increase in fish farming worldwide has boosted the demand for omega-3 fatty acids so much that today's supply can't meet ...

Neuroscience

How decisions unfold in a zebrafish brain

Some things we do appear almost automatic, like opening the fridge when feeling hungry or flipping on the air conditioning when the temperature rises. Although such decisions don't seem to take much thought, they are in fact ...

Neuroscience

Decision-making process becomes visible in the brain

Without hardly noticing, we make countless decisions: to turn left or right on the bus? To wait or to accelerate? To look or to ignore? In the run-up to these decisions the brain evaluates sensory information and only then ...

Diseases, Conditions, Syndromes

Supplements don't preserve kidney health in type 2 diabetes

Supplements of vitamin D and omega-3 fatty acids (often sold as fish oil) do not help people with type 2 diabetes stave off chronic kidney disease, according to findings from the largest clinical study to date of the supplements ...

Medical research

Zebrafish aid effort to regenerate damaged retinas

The tiny zebrafish may hold the secret to regenerating damaged retinas in humans, Vanderbilt University researchers reported last week in the journal Cell Reports.

Neuroscience

Settling the debate on serotonin's role in sleep

Serotonin is a multipurpose molecule found throughout the brain, playing a role in memory, cognition, and feelings of happiness and other emotions. In particular, researchers have long debated serotonin's role in sleep: Does ...

Oncology & Cancer

Spread of deadly eye cancer halted in cells and animals

By comparing genetic sequences in the eye tumors of children whose cancers spread with tumors that didn't spread, Johns Hopkins Medicine researchers report new evidence that a domino effect in cells is responsible for the ...

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