Medical research

Once blamed for aging, ROS molecules may actually extend life

(Medical Xpress) -- In a new study, Yale University researchers have identified a pathway by which reactive oxygen species (ROS) molecules, which are usually implicated in the aging process due to their damage to DNA, can ...

Neuroscience

Why the brain is more reluctant to function as we age

New findings, led by neuroscientists at the University of Bristol and published this week in the journal Neurobiology of Aging, reveal a novel mechanism through which the brain may become more reluctant to function as we ...

Oncology & Cancer

Cholesterol activates signaling pathway that promotes cancer

Everyone knows that cholesterol, at least the bad kind, can cause heart disease and hardening of the arteries. Now, researchers at the University of Illinois at Chicago describe a new role for cholesterol in the activation ...

Neuroscience

Brain circuitry that triggers overeating identified

Sixty years ago scientists could electrically stimulate a region of a mouse's brain causing the mouse to eat, whether hungry or not. Now researchers from UNC School of Medicine have pinpointed the precise cellular connections ...

Medical research

Avian insights into human ciliopathies

Ciliopathies are genetic disorders caused by defects in the structure and function of cilia, microtubule-based organelles present on the surface of almost every cell in the human body, which play crucial roles in cell signaling. ...

Neuroscience

Rats' and bats' brains work differently on the move

A new study of brain rhythms in bats and rats challenges a widely used model - based on studies in rodents - of how animals navigate their environment. To get a clearer picture of the processes at work in the mammal brain ...

Medical research

Scientists identify a genetic basis for healthy sleep

From organisms as simple as worms to those as complex as humans, sleep is a fundamental necessity. But although an estimated 50 to 70 million people in the United States suffer from a chronic sleep disorder, the genetic mechanisms ...

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