ArticleBehavioural brain research2021
Oxidative stress and neuroinflammation in a rat model of co-morbid obesity and psychogenic stress.
Article in Behavioural brain research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 24 citations in OpenAlex.
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- Combination of High-Fat Diet and Chronic Unpredictable Stress Synergistically Induces Osteoarthritis-Like Changes in Temporomandibular Joints in Rats.Mediators of inflammation · 2026Article
- A Causal Inference Study of Circulating Metabolites Mediating the Effect of Obesity-Related Indicators on the Incidence of Anxiety Disorders.Brain and behavior · 2025Article
- Effects of obesity on aging brain and cognitive decline: A cohort study from the UK Biobank.IBRO neuroscience reports · 2025Article
- Impact of adolescent high-fat diet and psychosocial stress on neuroendocrine stress responses and binge eating behavior in adult male Lewis rats.Hormones and behavior · 2025Article
- Neuroprotective Potential ofBiology · 2025Article
- Early-life obesogenic environment integrates immunometabolic and epigenetic signatures governing neuroinflammation.Brain, behavior, & immunity - health · 2024Article
- Transcranial Direct Current Stimulation (tDCS) Promotes state-dependent Effects on Neuroinflammatory and Behavioral Parameters in rats Chronically Exposed to Stress and a Hyper-Palatable Diet.Neurochemical research · 2023Article
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Authors and funding
10 authors at 3 institutions in 2 countries.
Funding
Abstract
backgroundThere is growing recognition for a reciprocal, bidirectional link between anxiety disorders and obesity. Although the mechanisms linking obesity and anxiety remain speculative, this bidirectionality suggests shared pathophysiological processes. Neuroinflammation and oxidative damage are implicated in both pathological anxiety and obesity. This study investigates the relative contribution of comorbid diet-induced obesity and stress-induced anxiety to neuroinflammation and oxidative stress.
methodsThirty-six (36) male Lewis rats were divided into four groups based on diet type and stress exposure: 1) control diet unexposed (CDU) and 2) exposed (CDE), 3) Western-like high-saturated fat diet unexposed (WDU) and 4) exposed (WDE). Neurobehavioral tests were performed to assess anxiety-like behaviors. The catalytic concentrations of glutathione peroxidase and reductase were measured from plasma samples, and neuroinflammatory/oxidative stress biomarkers were measured from brain samples using Western blot. Correlations between behavioral phenotypes and biomarkers were assessed with Pearson's correlation procedures.
resultsWe found that WDE rats exhibited markedly increased levels of glial fibrillary acidic protein (185 %), catalase protein (215 %), and glutathione reductase (GSHR) enzymatic activity (418 %) relative to CDU rats. Interestingly, the brain protein levels of glutathione peroxidase (GPx) and catalase were positively associated with body weight and behavioral indices of anxiety.
conclusionsTogether, our results support a role for neuroinflammation and oxidative stress in heightened emotional reactivity to obesogenic environments and psychogenic stress. Uncovering adaptive responses to obesogenic environments characterized by high access to high-saturated fat/high-sugar diets and toxic stress has the potential to strongly impact how we treat psychiatric disorders in at-risk populations.
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