About this Research Topic
Co-morbid depression is a common clinical observation. It has been reported to develop in association with a myriad of conditions including ischemic stroke, cardiovascular disease, hypertension, HIV, withdrawal from addictive substances, autoimmune diseases, schizophrenia, neurodegenerative diseases, and even childbirth. While the development of depression may be argued to be a psychological response to the primary condition in some instances, there is growing evidence that disease-related physiological and biochemical changes detected in patients are causative. Observations of primary clinical pathology may initiate further investigations of the biochemical events that a secondary disorder (depressive mood disorders), and how these events may inform future strategies for drug development and treatment of the conditions.
The goal of this research topic is to unify investigative efforts seeking to highlight diseases which are associated with a higher incidence of neuropsychiatric co-morbidity, and investigate the molecular pathology underlying this association. While the primary neuropsychiatric symptom of interest is depression, other symptoms such as anxiety and social withdrawal are also of interest. To generate broad interest in this topic, we propose a wide scope for submitted manuscripts which may range from epidemiological studies reporting altered rates of psychiatric symptoms in patient groups, and clinical studies linking the primary condition with higher incidence of neuropsychiatric symptoms (e.g. qualitative measurements linked with imaging studies or peripheral biomarkers), to investigative work in animal models, providing more causal evidence for the association. Animal model studies should, ideally, utilise models which were not originally developed to study major depressive disorder but have since been discovered to manifest a behavioural phenotype suggestive of depression-related behaviours (e.g. withdrawal from addictive substances). Such studies may probe the reported behavioural perturbations with behavioural and environmental interventions, pharmacological challenges or therapeutics, and proteomic or genomic profiling of molecular deficits associated with the phenotype.
Important Note: All contributions to this Research Topic must be within the scope of the section and journal to which they are submitted, as defined in their mission statements. Frontiers reserves the right to guide an out-of-scope manuscript to a more suitable section or journal at any stage of peer review.