People with depression tend to have lower scores on depression-related measures like the Beck Depression Inventory, the International Neuropsychological Inventory, and the Beck Anxiety Inventory, according to a new study.
In addition, people with depression also have lower levels of the so-called “neuroticism” that helps people to feel less anxious and stressful, according a study led by neuroscientist James G. Robinson at Duke University.
In an effort to find out how depression and anxiety are linked, Robinson and his colleagues set out to find the genes that influence these mental states.
The researchers identified about 5,500 genes and genes in the human genome that are associated with depression and mood disorders.
They then mapped those genes to specific disorders and analyzed how those disorders are affected by genetics.
The researchers found that the genes involved in depression are linked to genes involved with anxiety, while genes that control the production of dopamine are linked with genes that regulate mood.
They also found that genes related to inflammation and oxidative stress are linked.
To identify the genes associated with these mental disorders, the researchers used a genome-wide association scan.
This genetic map can be used to identify genetic variations that are linked in different ways to different mental disorders.
To see if any of the genes in question were affected by stress, the team analyzed data from a number of other studies that measured levels of stress in individuals with depression.
They found that while stress was linked to depressed genes, the genes related with anxiety and depression were linked to stress genes.
For example, genes related in a study that measured the level of anxiety in patients with depression were related to anxiety genes, and genes related for inflammation and stress were related, as well.
This suggests that depression is not a disease that can be diagnosed only by looking at genes, but rather by looking for the genes of the individual.
Robinson and his team also analyzed genetic variations associated with the ability to control inflammation.
These genetic variants are associated in studies with increased inflammation, and researchers are interested in learning more about the role of inflammation in depression.
One of the most common types of inflammation associated with a depressive disorder is the autoimmune disease, or inflammatory bowel disease.
The team’s study also found associations between genetic variants associated with inflammation and depression.
These findings were published online June 12 in Nature Medicine.
The study was supported by a National Institutes of Health grant to Robinson.
Robinson is a member of the National Institutes for Health.
The article was written by David R. McBride and Sarah H. Leong.