Brain Disease

Medical News Today: Aging, obesity may prime the brain for Alzheimer’s

According to a new study, the effects of natural aging processes, combined with those of obesity and a poor diet, affect certain brain mechanisms, thereby boosting the risk of Alzheimer’s. Alzheimer’s disease is a neurodegenerative condition that is characterized primarily by memory loss and impaired cognition. (July 2, 2018) Read the full article here

Medical Xpress: Reward and unease are closely linked in the brain

Mice that lack a certain receptor in the brain are attracted to situations associated with discomfort, such as inflammation and nausea, according to a new study from Linköping University, Sweden. The finding has been published in the Journal of Clinical Investigation. (July 2, 2018) Read the full article here

Newsweek: Alzheimer’s markers linked to high sugar, high fat foods in study on mice

The combination of aging and eating foods high in fat and sugar has been linked to markers of Alzheimer’s disease in a study.  Alzheimer’s disease, the most common form of dementia, is the sixth leading cause of death in the U.S.. Around 5.7million Americans are living with the condition, and this figure is expected to […]

Parkinson’s News Today: New method captures images of all brain areas following gene therapy

A new method that allows imaging of all brain areas can help researchers monitor the success of gene therapy in the treatment of neurological diseases such as Parkinson’s. The study, “A Novel Positron Emission Tomography Reporter Gene/Reporter Probe for the Central Nervous System,” was presented recently during the SNMMI 2018 Annual Meeting in Philadelphia, and […]

Reuters: Depression may be more severe in elderly people

Elderly people with major depressive disorder may be more likely to suffer severe and persistent symptoms than younger adults with the same mental health diagnosis, a Dutch study suggests. Researchers examined data on 1,042 adults with major depressive disorder who ranged in age from 18 to 88. The researchers studied how depression developed over time […]

Science News: A brain chemical tied to narcolepsy may play a role in opioid addiction

Opioid addicts’ brains, examined after death, contain about 50 percent more nerve cells that release a molecule called hypocretin, compared with people who didn’t use the drugs, a new study finds. Giving the opiate morphine to mice also induced similar changes in their brains. But the increase didn’t come from new nerve cells, or neurons, […]

The Scientist: Young brain cells silence old ones to quash anxiety

If youngsters told their elders to be quiet, stress levels would surely rise. But, when it comes to brain cells, it seems the opposite is true—silencing of old neurons by young ones appears to make an animal more stress resilient. A report today (June 27) in Nature shows that mice whose production of new hippocampal […]

Medical News Today: Serotonin enhances learning, not just mood

The neurotransmitter serotonin is linked to the control of mood, though it also helps to regulate various other functions, such as sleep and sexual desire. New research has uncovered another role played by serotonin: boosting learning speed. (June 26, 2018) Read the full article here