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Related Concept Videos

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Bipolar disorder is a chronic mental health condition marked by significant mood fluctuations, including episodes of mania and depression. Elevated energy levels, heightened mood or irritability, impulsive behavior, reduced sleep needs, rapid speech, racing thoughts, inflated self-esteem, and distractibility characterize mania. Individuals with bipolar disorder often alternate between depressive and manic states, with periods of emotional stability lasting an average of six months to a year.
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Borderline Personality Disorder is a complex and multifaceted mental health condition characterized by pervasive instability in interpersonal relationships, self-image, emotions, and impulse control. This instability manifests in extreme emotional reactions, fear of abandonment, and self-destructive behaviors. The disorder significantly impacts daily functioning, often leading to distress in both personal and professional domains.
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Related Experiment Video

Updated: Apr 11, 2026

Developing a Rat Model for Bipolar Disorder
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Immune alterations in acute bipolar depression.

F Dickerson1, E Katsafanas1, L A B Schweinfurth1

  • 1Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA.

Acta Psychiatrica Scandinavica
|June 11, 2015
PubMed
Summary

Individuals with acute bipolar depression exhibit immune system changes, including elevated C-reactive protein (CRP) and antibodies to the Mason-Pfizer monkey virus (MPMV). These immune alterations in bipolar depression partially resemble those seen in acute mania.

Keywords:
bipolar disorderdepressionneuroimmunology

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Area of Science:

  • Neuroimmunology
  • Psychiatry
  • Immunology

Background:

  • Bipolar disorder is associated with immunologic abnormalities, particularly in acute mania.
  • Fewer studies have investigated immune profiles in patients experiencing acute bipolar depression.

Purpose of the Study:

  • To investigate immunologic markers in individuals with acute bipolar depression.
  • To compare these markers with those in acute mania and healthy controls.
  • To assess changes in immune markers over a 6-month period in bipolar depression.

Main Methods:

  • Blood samples analyzed for antibodies (herpesviruses, gliadin, Toxoplasma gondii, endogenous retroviruses), C-reactive protein (CRP), and pentraxin-3.
  • Immunoassay methods employed for quantification.
  • Linear regression models used for statistical analysis, controlling for covariates.
  • Follow-up assessment at 6 months for a subset of patients.

Main Results:

  • Elevated CRP and IgG antibodies to Mason-Pfizer monkey virus (MPMV) identified in acute bipolar depression.
  • Reduced pentraxin-3 levels observed in both bipolar depression and acute mania groups.
  • MPMV antibody levels significantly decreased at 6-month follow-up in bipolar depressed patients.

Conclusions:

  • Acute bipolar depression is characterized by distinct immune alterations.
  • Some observed immune changes in bipolar depression overlap with those found in acute mania.
  • Immune markers may offer insights into the pathophysiology of bipolar disorder subtypes.