Volume 16, Issue 3 p. 230-240
Original Article

Seroreactive marker for inflammatory bowel disease and associations with antibodies to dietary proteins in bipolar disorder

Emily G Severance

Corresponding Author

Emily G Severance

Stanley Division of Developmental Neurovirology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA

Corresponding author:

Emily G. Severance, Ph.D.

Stanley Division of Developmental Neurovirology

Department of Pediatrics

Johns Hopkins University School of Medicine

600 North Wolfe Street, Blalock 1105

Baltimore, MD 21287-4933

USA

Fax: 410-955-3723

E-mail: [email protected]

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Kristin L Gressitt

Kristin L Gressitt

Stanley Division of Developmental Neurovirology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA

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Shuojia Yang

Shuojia Yang

Stanley Division of Developmental Neurovirology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA

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Cassie R Stallings

Cassie R Stallings

Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA

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Andrea E Origoni

Andrea E Origoni

Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA

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Crystal Vaughan

Crystal Vaughan

Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA

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Sunil Khushalani

Sunil Khushalani

Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA

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Armin Alaedini

Armin Alaedini

Department of Medicine, Columbia University Medical Center, New York, NY, USA

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Faith B Dickerson

Faith B Dickerson

Stanley Research Program, Sheppard Pratt Health System, Baltimore, MD, USA

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Robert H Yolken

Robert H Yolken

Stanley Division of Developmental Neurovirology, Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA

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First published: 06 December 2013
Citations: 56

Abstract

Objectives

Immune sensitivity to wheat glutens and bovine milk caseins may affect a subset of individuals with bipolar disorder. Digested byproducts of these foods are exorphins that have the potential to impact brain physiology through action at opioid receptors. Inflammation in the gastrointestinal (GI) tract might accelerate exposure of food antigens to systemic circulation and help explain elevated gluten and casein antibody levels in individuals with bipolar disorder.

Methods

We measured a marker of GI inflammation, anti-Saccharomyces cerevisiae antibodies (ASCA), in non-psychiatric controls (n = 207), in patients with bipolar disorder without a recent onset of psychosis (n = 226), and in patients with bipolar disorder with a recent onset of psychosis (n = 38). We compared ASCA levels to antibodies against gluten, casein, Epstein–Barr virus (EBV), herpes simplex virus 1 (HSV-1), influenza A, influenza B, measles, and Toxoplasma gondii.

Results

Elevated ASCA conferred a 3.5–4.4-fold increased odds ratio of disease association (age-, race-, and gender-corrected multinomial logistic regressions, p ≤ 0.00001) that was independent of type of medication received. ASCA correlated with food antibodies in both bipolar disorder groups (R2 = 0.29–0.59, p ≤ 0.0005), and with measles and T. gondii immunoglobulin G (IgG) in the recent onset psychosis bipolar disorder group (R2 = 0.31–0.36, p ≤ 0.004–0.01).

Conclusions

Elevated seropositivity of a GI-related marker and its association with antibodies to food-derived proteins and self-reported GI symptoms suggest a GI comorbidity in at least a subgroup of individuals with bipolar disorder. Marker seroreactivity may also represent part of an overall heightened activated immune state inherent to this mood disorder.

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