A number of patients in intensive care units for non-brain-related illnesses may suffer from cognitive dysfunction. Inflammation that occurs as a result of infection and problems with oxygen flow to the brain which occur when breathing is affected, could contribute to cognitive impairments.
Depleting the protein ADORA2B from the blood of mice led to faster cognitive decline, decreased auditory processing, and increased brain inflammation.
Researchers directly measured oxygen levels in an intact brain and correlated it with neural activity. During normal activity, only 50% of oxygen is used for neural activity, the remaining 50% is required for glial cells and maintaining the metabolic rate of other nerve cells.
Researchers have discovered how the brain controls our breathing in response to changing oxygen and carbon dioxide levels in the blood.
Researchers have developed a new urine test that could potentially measure how much our bodies have aged. The test measures a substance that indicates oxidative damage, which increases in urine as we age.
According to a new study, poor physical fitness in middle age may be linked to lower brain volume in later life.