Comparing PET scans of more than 90 adults with and without mild cognitive impairment (MCI), Johns Hopkins Medicine researchers say relatively lower levels of the so-called "happiness" chemical, serotonin, in parts of the ...
Dec 7, 2023
0
8
Scientists led by Julia Sacher from Max Planck Institute for Human Cognitive and Brain Sciences and Osama Sabri from the Leipzig University Hospital have discovered in an elaborate patient study that the transport of the ...
Jan 30, 2023
0
8
The neurotransmitter serotonin can adversely affect the heart's mitral valve, contributing to a heart disease known as degenerative mitral regurgitation, according to a new multicenter study involving researchers from the ...
Jan 18, 2023
0
72
Currently, various classes of drugs are available for the treatment of mental illnesses, such as depression and anxiety disorders. However, although these drugs confer benefits, they are also associated with adverse side-effects. ...
Nov 15, 2022
0
337
This is a fruit fly.
Nov 14, 2022
1
9
For three decades, people have been deluged with information suggesting that depression is caused by a "chemical imbalance" in the brain—namely an imbalance of a brain chemical called serotonin. However, our latest research ...
Jul 20, 2022
0
6252
After decades of study, there remains no clear evidence that serotonin levels or serotonin activity are responsible for depression, according to a major review of prior research led by UCL scientists.
Jul 20, 2022
1
1910
Levels of dopamine and the placebo effect can determine whether patients with social anxieties improve when treated with SSRIs. A new study shows the effect was four times higher for patients with high expectations of the ...
Nov 8, 2021
0
158
Looking for ways to image the human brain for the earliest signs of aging and cognitive decline, Johns Hopkins Medicine researchers recently identified a pattern that links the accumulation of amyloid beta (Aβ) proteins ...
Oct 8, 2021
0
52
A commonly used drug called fluvoxamine was recently tested as a treatment for COVID-19 in the United States. The 152 patients enrolled in the trial had been confirmed to have COVID-19 using a PCR test, and had seen symptoms ...
Nov 30, 2020
0
11
