The phrase "biological depression" is correct and usable in written English.
You could use it to describe depression that is caused by physical factors, such as a chemical imbalance in the brain, rather than by external or emotional triggers. For example: "This patient has been diagnosed with biological depression, which is believed to be caused by a deficiency of serotonin in the brain."
Because of the reported non-linear relationship between biological markers and depression [ 19, 42, 43] and the relatively low symptom severity of depression in the present study, the depression subscale of HADS was transformed to ordinal scores based on the quartile distribution and the suggested cut-off point for depression subscale of HADS.
Oxidative damage is a key biological mechanism in depression pathophysiology, and many anti-depressants, like fluoxetine [ 50] and venlafaxine [ 51], reduce oxidative damage.
Melancholia implies the biological symptoms of depression: early-morning waking, daily variations of mood with depression most severe in the morning, loss of appetite and weight, constipation, and loss of interest in love and sex.
A few participants mentioned a biological cause to depression, but none used it to explain their own depression, preferentially explained by external events.
Together, controversies with reproducibility of stress-induced anhedonia, defined by sucrose preference data and identification of biological correlates of depression greatly limit the value of this method to model pre-clinical depression [ 40].
Ongoing research with this cohort includes neuroimaging studies to better understand the biological underpinnings of depression and bring the identification and treatment of depressed individuals to new levels of accuracy and effectiveness.
As such, neurometabolic changes in the left ACG could be a potential "biological signature" of depression related to AD, and a target for novel treatments for AD patients with depression.
It is speculated that including more biological correlates of depression and data concerning positive life-changes may improve our understanding of the prognosis of late life depression.
Biological rhythm disorders, depression and phototherapy: a new hypothesis.
Background: Biological conceptualisations of depression are increasingly prevalent.
