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Impaired parasympathetic function increases susceptibility to inflammatory bowel disease in a mouse model of depression
Open accessAbstract
Clinical and experimental evidence indicates that intestinal inflammatory conditions can be exacerbated by behavioral conditions such as depression. The recent demonstration of a tonic counterinflammatory influence mediated by the vagus nerve in experimental colitis provides a potential link between behavior and gut inflammation. Here we show that experimental conditions that induced depressive-like behaviors in mice increased susceptibility to intestinal inflammation by interfering with the tonic vagal inhibition of proinflammatory macrophages and that tricyclic antidepressants restored vagal function and reduced intestinal inflammation. These results show that reserpine-induced monoamine depletion and maternal separation, 2 models for depression, produced a vulnerability to colitis by a mechanism involving parasympathetic transmission and the presence of gut macrophages. The tricyclic antidepressant desmethylimipramine protected against this vulnerability by a vagal-dependent mechanism. Together these results illustrate the critical role of the vagus in both the vulnerability to inflammation induced by depressive-like conditions and the protection afforded by tricyclic antidepressants and rationalize a clinical evaluation of both parasympathomimetics and tricyclic antidepressants in treatment of inflammatory bowel disease.
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“Critically, vagus nerve dysfunction could exacerbate this neuroinflammatory pathway [43], [52].”
From The hidden genetic and microbial networks connecting neuropsychiatric and digestive disorders (2025) · cites this paper as [52]
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“Previous studies of NMS in mice reported increased MPO and cytokine production, as well as elevated histological scores (Varghese et al., 2006; Ghia et al., 2008; Veenema et al., 2008).”
BackgroundInfluentialPsychological Factors in Irritable Pouch Syndrome and Other Pouch Disorders
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“Early researchers had access to the therapeutic potential of CAP in attenuating systemic inflammation caused by endotoxemia; several studies reported a beneficial effect of CAP in many inflammationmediated diseases (Borovikova et al., 2000; Ghia et al., 2008; Tracey, 2009; Nolan et al., 2012).”
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“Other tentative explanations include MD-induced alterations of the reactivity of the sympathetic, parasympathetic and sensory peptidergic nervous systems, which are all found to be altered by maternal deprivation [55, 75-77], and which reactivity we have found to play a significant role in the susceptibility/resistanc…”
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“This lack of clarity has brought a lot of confusion [21], particularly when empirical evidence from animal studies is suggesting potentially causal mechanisms between depression and inflammation [22,23]; and around 74% of IBD patients seem to believe that psychological factors such as anxiety and depression contribute…”
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“Vagotomized mice displayed severe colitis, and, after the administration of tricyclic antidepressants, a restoration of the vagal function was observed, as well as a reduced intestinal inflammation [29].”
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BackgroundSalvianolic acid B decreases interleukin-1β-induced colitis recurrence in mice
Feng, P.-P., Fang, X.-S., Zhao, S.-H., Fu, J., Zhang, H., Yi, Y., Li, C., Jiang, C.-L., & Chen, D.-P. (2020) · Chinese Medical Journal · doi:10.1097/cm9.0000000000000773 · Cited by 14
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“Patients with depression have dif fi culty absorbing nutrients from their food, leading to weight loss, even if individuals consume a suf fi cient quantity of food 35,36 .”
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“Depression interfered with the tonic vagal inhibition of proinflammatory cells and increased susceptibility to intestinal inflammation and tricyclic antidepressants reduced intestinal inflammation by restoring vagal function [20].”
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ResultSignificance of vagus nerve function in terms of pathogenesis of psychosocial disorders
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“17 We measured the serum level of IL-6, IL-10, IFN-c , and TNF-a in experimental rats.”
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“22 In fact, cholinergic nerves have an anti-inflammatory role in regulating innate immune cells, which is also known as the “cholinergic anti-inflammatory pathway”.”
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“ABBREVIATIONS: 5-ASA, 5-aminosalicylic acid; CD, Crohn disease; DNBS, dinitrobenzene acid; DSS, sodium dextran sulfate; IBD, inflammatory bowel disease; IDA, index of disease activity; IFN-g -, interferon-g; IKK-b -, inhibitor of nuclear factor kappa-B kinase subunit beta; IL-, interleukin; LASSBio, Laboratory of Synt…”
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BackgroundMon cerveau et mon intestin communiquent, parfois mal !
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ResultInfluentialProkinetics in small-bowel capsule endoscopy: smart use is the key.
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Trastornos funcionales digestivos post-infecciosos: del episodio agudo a la molestia crónica
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“70 60 50 40 30 20 10 0 Bajo (<42) Intermedio (43-68) Alto (>69) Cohorte de derivación Cohorte de validación Figura 3 Resultados obtenidos tras aplicar el cuestionario que valora el riesgo de desarrollar un SII post-infeccioso tras un episodio de gastroenteritis aguda.”
Neuronal Regulation of Mucosal Immune Responses
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Management of irritable bowel syndrome in children
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Metadata
- Authors
- Ghia, J.-E., Blennerhassett, P., & Collins, S. M.
- Affiliations
- McMaster University (CA)
- Corresponding author
- Collins, Stephen M.
- Venue
- Journal of Clinical Investigation
- Published
- 2008-05-01
- Volume
- 118
- Issue
- 6
- Pages
- 2209-18
- ISSN
- 0021-9738 (ISSN-L)
- PMC
- PMC2350428
- OpenAlex
- W2169338224
- Cited by
- 233
- References
- 0
- Citations by year
- 2026: 2 · 2025: 10 · 2024: 13 · 2023: 14 · 2022: 16 · 2021: 10 · 2020: 13 · 2019: 9 · 2018: 12 · 2017: 10 · 2016: 23 · 2015: 16 · 2014: 15 · 2013: 19 · 2012: 10
- FWCI
- 9.02
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Journal of Clinical Investigation (publishedVersion)
- Europe PMC (PubMed Central) (publishedVersion)
- PubMed Central (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Institut de France
- McMaster University
- Crohn's and Colitis Foundation
- Crohn's and Colitis Foundation of Canada
- Canadian Association of Gastroenterology
- Topics
- Life Sciences › Neuroscience › Neurology › Vagus Nerve Stimulation Research
- Health Sciences › Medicine › Gastroenterology › Inflammatory Bowel Disease
- Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
- Keywords
- depression, inflammatory bowel disease, vagus nerve, parasympathetic nervous system, colitis, tricyclic antidepressants, desmethylimipramine, reserpine, maternal separation, monoamine depletion, gut-brain axis, neuroimmune regulation
- MeSH terms
- Animals, Antidepressive Agents, Brain, Colitis, Depressive Disorder, Disease Models, Animal, Female, Macrophages, Male, Mice, Inbred C57BL, Parasympathetic Nervous System, Reserpine, Serotonin, Inflammatory Bowel Diseases, Serotonin Agents, Genetic Predisposition to Disease, Mice
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