Related Experiment Video
Updated: Apr 20, 2026

Method for Identifying Small Molecule Inhibitors of the Protein-protein Interaction Between HCN1 and TRIP8b
Published on: November 11, 2016
Pentraxin 3 is reduced in bipolar disorder
Faith Dickerson1, Cassie Stallings1, Andrea Origoni1
1Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA.
Individuals with bipolar disorder exhibit lower pentraxin 3 levels, indicating potential innate immune system impairment. This finding may offer new diagnostic and therapeutic avenues for bipolar disorder.
Area of Science:
- Neuroimmunology
- Psychiatric disorders
- Innate immunity
Background:
- Bipolar disorder is associated with immunologic abnormalities.
- Pentraxin 3 (PTX3) is a key marker of innate immunity.
- PTX3 levels have not been previously investigated in bipolar disorder.
Purpose of the Study:
- To investigate pentraxin 3 (PTX3) levels in individuals with bipolar disorder.
- To compare PTX3 levels between bipolar disorder, schizophrenia, and control groups.
- To explore the association between PTX3 levels and bipolar disorder.
Main Methods:
- Measured PTX3 levels in 831 participants (256 bipolar disorder, 309 schizophrenia, 266 controls).
- Utilized linear regression to compare PTX3 levels across groups, adjusting for covariates.
- Employed logistic regression to assess odds ratios for low/high PTX3 levels relative to controls.
Main Results:
- Bipolar disorder patients showed significantly lower PTX3 levels than controls (p < 0.001).
- Schizophrenia patients did not exhibit significantly different PTX3 levels compared to controls.
- Bipolar disorder was associated with increased odds of low PTX3 and decreased odds of high PTX3 levels.
Conclusions:
- Low PTX3 levels in bipolar disorder suggest impaired innate immunity.
- Further research into innate immunity's role in bipolar disorder pathogenesis is warranted.
- Findings may inform novel diagnostic and treatment strategies for bipolar disorder.
Related Concept Videos
Mania and Antimanic Drugs: Overview
Bipolar Disorder
Panic Disorder
Antidepressant Drugs: MAOIs and Other Agents
Psychosis: Goals of Pharmacotherapy
Antidepressant Drugs: Tricyclics, SSRIs, and SNRIs

