Could Inflammation in the Brain Cause Depression?

A Huffington Post article cited a couple new research results that link brain inflammation with depression: 

...According to new research, brain inflammation that occurs independently of physical illness may be highly correlated with clinical depression.
Depression patients display a 30 percent increase in certain markers of brain inflammation when compared with a control group without depression, according to a study from the Center for Addiction and Mental Health (CAMH) at the University of Toronto.
— http://www.huffingtonpost.com/2015/01/28/depression-brain-inflamma_n_6555222.html

"Depression is a complex illness and we know that it takes more than one biological change to tip someone into an episode," says Dr. Meyer. "But we now believe that inflammation in the brain is one of these changes and that's an important step forward."

Posted on February 23, 2015 .