Drug Reduces Brain Inflammation, Protects Against Alzheimer’s

An anti-inflammatory drug candidate, known as 3,6’-dithiopomalidomide (DP), designed by researchers at the National Institute on Aging (NIA), protected lab mice against cognitive decline by reducing brain inflammation. An international research team led by the NIA scientists published their findings in Alzheimer’s and Dementia: The Journal of the Alzheimer’s Association. NIA is part of the National Institutes of Health.

The study results provide new evidence that brain inflammation — which occurs decades before Alzheimer’s symptoms are noticeable — is a key neuropathological pathway of interest in efforts to find potential treatments for Alzheimer’s.

To investigate whether brain inflammation was directly involved in cognitive loss, researchers used a mouse model specially designed to produce up to five times the normal levels of beta-amyloid plaques. These plaques are a hallmark sign of Alzheimer’s and are thought to contribute to a destructive inflammatory response in the brain. After four months of treatment with DP, the mice showed reduced brain inflammation and neuron death, and they had more neural connections in the brain areas responsible for memory and attention. DP-treated mice also showed improvement in behavioral laboratory tasks that test spatial and working memory as well as anxiety behaviors and motor function, results the researchers see as protective against cognitive impairment.

Source: https://www.nih.gov/

Cheap Steroid Reduces Covid-19 Death Toll by 35%

The steroid dexamethasone has been found to reduce the risk of death in seriously ill coronavirus patients by about a third, according to clinical trial results hailed on Tuesday as a “major breakthrough.” The drug did not appear to help less severely ill patients.

Researchers led by a team from the University of Oxford administered the inexpensive, widely available drug to more than 2,000 severely ill COVID-19 patients. Among those who could only breathe with the help of a ventilator, dexamethasone reduced deaths by 35%. It reduced deaths by about 20% among patients who were receiving oxygen only, according to preliminary results.

Dexamethasone is an anti-inflammatory drug normally used to treat a range of allergic reactions as well as rheumatoid arthritis and asthma.

Source: https://www.cbsnews.com/