Major obstacles include the lack of availability of good animal models that replicate aspects of the phenotype and tests to assay depression-like behaviour in non-human species.
When considering animal models of depression, the term 'model' is often used to describe both methods to induce a depression-like phenotype and those methods used to assay depression-like behaviour.
This criticism has been applied to established assays of depression-like behaviour such as the FST and also used to support the improved validity of tests of anhedonia.
Lactate release from cerebral cortex was directly demonstrated by a v difference assays during spreading depression and ammonia loading, but cannot be directly assayed during activation of small, inaccessible structures.
It should be noted, however, that we measured only one fitness trait in our assays for inbreeding depression (brood size).
In functional assays of non-competitive antagonists, depression of the maximal response of agonist dose-response curves, and in some cases, rightward shifts, is produced.
In any case, it seems justified to conclude that some activated immune-inflammatory and oxidative stress pathways may be considered as endophenotypic trait biomarkers of depression, whereas other assays are biomarkers of staging of depression.
An extraordinary hermaphrodite of dioecious willows provides us an opportunity to examine the inheritance of sex expression and the magnitude of inbreeding depression using a progeny assay of the hermaphrodite.
All assays were performed without knowledge of maternal antepartum depression status.
In the current study, neuropathic mice did not demonstrate significant signs of depression-like phenotype in the tail suspension assay.
Because frequent (ie "chronic") migraineurs show increased rates of anxiety and depression [24 26], experiment 2 added EPM and FST assays to determine if multiple injections induced these symptoms.
