Skip to main page content
Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
Review
. 2017 Feb;71(2):77-103.
doi: 10.1111/pcn.12476. Epub 2017 Jan 6.

Biological Hypotheses and Biomarkers of Bipolar Disorder

Affiliations
Free article
Review

Biological Hypotheses and Biomarkers of Bipolar Disorder

Ekaterina Sigitova et al. Psychiatry Clin Neurosci. .
Free article

Abstract

The most common mood disorders are major depressive disorders and bipolar disorders (BD). The pathophysiology of BD is complex, multifactorial, and not fully understood. Creation of new hypotheses in the field gives impetus for studies and for finding new biomarkers for BD. Conversely, new biomarkers facilitate not only diagnosis of a disorder and monitoring of biological effects of treatment, but also formulation of new hypotheses about the causes and pathophysiology of the BD. BD is characterized by multiple associations between disturbed brain development, neuroplasticity, and chronobiology, caused by: genetic and environmental factors; defects in apoptotic, immune-inflammatory, neurotransmitter, neurotrophin, and calcium-signaling pathways; oxidative and nitrosative stress; cellular bioenergetics; and membrane or vesicular transport. Current biological hypotheses of BD are summarized, including related pathophysiological processes and key biomarkers, which have been associated with changes in genetics, systems of neurotransmitter and neurotrophic factors, neuroinflammation, autoimmunity, cytokines, stress axis activity, chronobiology, oxidative stress, and mitochondrial dysfunctions. Here we also discuss the therapeutic hypotheses and mechanisms of the switch between depressive and manic state.

Keywords: bipolar disorder; hypothesis; mitochondrial dysfunction; neuroinflammation; neuroplasticity.

Similar articles

See all similar articles

Cited by 17 articles

See all "Cited by" articles

MeSH terms

Feedback