ArticleJournal of neuroinflammation2016
Low-dose lipopolysaccharide (LPS) inhibits aggressive and augments depressive behaviours in a chronic mild stress model in mice.
Article in Journal of neuroinflammation, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
49 citing papers in PubMed, 1 synthesis or guideline pooled it, 121 citations in OpenAlex.
- What Animal Models Can Tell Us About Long-Term Psychiatric Symptoms in Sepsis Survivors: a Systematic Review.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2021Pooled it
- Acute trazodone treatment ameliorates behavioral abnormalities and improves subsequent short-term memory in a lipopolysaccharide-induced mouse model of acute brain dysfunction.PCN reports : psychiatry and clinical neurosciences · 2026Article
- Impact of Imipenem on Cognitive Function, Anxiety-like Behaviour, Neurogenesis, and Astrogliosis in Pentylenetetrazol-Kindled Rats.Antibiotics (Basel, Switzerland) · 2026Article
- Behavioral and molecular characterization of fatigue-like manifestations triggered by acute restraint stress and LPS or saline.Scientific reports · 2026Article
- A mouse model to study persistent fatigue.Research square · 2026Article
- Ginsenoside Rg1 ameliorates lipopolysaccharide-induced depressive-like behaviors in mice by attenuating neuroinflammation and neuronal damage.Scientific reports · 2026Article
- Prolonged Aggressive Experience Accelerates Resolution of Inflammation in Blood and Microglia After Repeated LPS Treatment.International journal of molecular sciences · 2025Article
- Regional Molecular Changes in Chronic Lipopolysaccharide-Induced Neuroinflammation.Biological psychiatry global open science · 2025Article
- Erythropoietin (EPO) Alleviates Chronic Stress-Induced Depression by Modulating SIRT1-Mediated Mitochondrial Function.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025Article
- Pentoxifylline Prevents Neuroinflammation and Modifies PTEN/TrkB Signaling in an LPS-Induced Depression Model.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2025Article
- Adolescent morphine exposure does not alter low-dose lipopolysaccharide (LPS)-induced sickness behavior in adult C57/BL6 mice.PloS one · 2025Article
- Locomotor and gait changes in the LPS model of neuroinflammation are correlated with inflammatory cytokines in blood and brain.Journal of inflammation (London, England) · 2024Article
- Sucrose binge-eating and increased anxiety-like behavior in Sprague-Dawley rats exposed to repeated LPS administration followed by chronic mild unpredictable stress.Scientific reports · 2024Article
- Chronically stressed male and female mice show a similar peripheral and central pro-inflammatory profile after an immune challenge.PloS one · 2024Article
- Resilience and Vulnerability to Stress-Induced Anhedonia: Unveiling Brain Gene Expression and Mitochondrial Dynamics in a Mouse Chronic Stress Depression Model.Biomolecules · 2023Article
- eIF4E phosphorylation mediated LPS induced depressive-like behaviors via ameliorated neuroinflammation and dendritic loss.Translational psychiatry · 2023Article
- Lipopolysaccharide triggers exacerbated microglial activation, excessive cytokine release and behavioural disturbances in mice with truncated Fused-in-Sarcoma Protein (FUS).Brain, behavior, & immunity - health · 2023Article
- Article
- Maternal Chronic Ultrasound Stress Provokes Immune Activation and Behavioral Deficits in the Offspring: A Mouse Model of Neurodevelopmental Pathology.International journal of molecular sciences · 2023Article
- Low-Dose Lipopolysaccharide Protects from Lethal Paramyxovirus Infection in a Macrophage- and TLR4-Dependent Process.Journal of immunology (Baltimore, Md. : 1950) · 2023Article
Corrections and comments
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Authors and funding
10 authors at 7 institutions in 4 countries.
Funding
Abstract
backgroundAggression, hyperactivity, impulsivity, helplessness and anhedonia are all signs of depressive-like disorders in humans and are often reported to be present in animal models of depression induced by stress or by inflammatory challenges. However, chronic mild stress (CMS) and clinically silent inflammation, during the recovery period after an infection, for example, are often coincident, but comparison of the behavioural and molecular changes that underpin CMS vs a mild inflammatory challenge and impact of the combined challenge is largely unexplored. Here, we examined whether stress-induced behavioural and molecular responses are analogous to lipopolysaccharide (LPS)-induced behavioural and molecular effects and whether their combination is adaptive or maladaptive.
methodsChanges in measures of hedonic sensitivity, helplessness, aggression, impulsivity and CNS and systemic cytokine and 5-HT-system-related gene expression were investigated in C57BL/6J male mice exposed to chronic stress alone, low-dose LPS alone or a combination of LPS and stress.
resultsWhen combined with a low dose of LPS, chronic stress resulted in an enhanced depressive-like phenotype but significantly reduced manifestations of aggression and hyperactivity. At the molecular level, LPS was a strong inducer of TNFα, IL-1β and region-specific 5-HT2A mRNA expression in the brain. There was also increased serum corticosterone as well as increased TNFα expression in the liver. Stress did not induce comparable levels of cytokine expression to an LPS challenge, but the combination of stress with LPS reduced the stress-induced changes in 5-HT genes and the LPS-induced elevated IL-1β levels.
conclusionsIt is evident that when administered independently, both stress and LPS challenges induced distinct molecular and behavioural changes. However, at a time when LPS alone does not induce any overt behavioural changes per se, the combination with stress exacerbates depressive and inhibits aggressive behaviours.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.