Increased inflammatory biomarkers and changes in biological rhythms in bipolar disorder: A case-control study

Area of Science:

• Neuroscience
• Psychiatry
• Immunology

Background:

• Bipolar Disorder (BD) is a chronic mood disorder with significant neurobiological and treatment gaps.
• Inflammatory processes are increasingly recognized as crucial in BD pathophysiology.
• Understanding the interplay between inflammation and biological rhythms in BD is essential.

Purpose of the Study:

• To investigate the role of inflammation in Bipolar Disorder.
• To evaluate specific inflammatory biomarkers and their association with biological rhythms in BD patients.
• To compare inflammatory profiles and biological rhythm assessments between BD patients and healthy controls.

Main Methods:

• A case-control study involving 36 BD patients and 46 healthy controls (HC).
• Serum analysis of Cyclooxygenase 2 (COX-2), Arachidonic Acid (AA), interleukins (IL-4, IL-5, IL-6, IL-10, IL-33), and Tumor Necrosis Factor Alpha (TNF-α).
• Assessment of biological rhythms using the Biological Rhythm Interview of Assessment in Neuropsychiatry (BRIAN).

Main Results:

• Individuals with BD exhibited elevated levels of COX-2, AA, IL-6, and TNF-α compared to HC.
• BD patients demonstrated significant impairments across all domains assessed by the BRIAN.
• A correlation between inflammatory markers and biological rhythm disturbances in BD was suggested.

Conclusions:

• Inflammation plays a significant role in Bipolar Disorder.
• Alterations in biological rhythms are notably present in BD.
• Further research is required to fully elucidate the Arachidonic Acid inflammatory pathway in BD.