Depression is increasingly present in the population, and its pathophysiology and treatment have been investigated with several animal models, including olfactory bulbectomy (Obx). Fish oil (FO) supplementation during the prenatal and postnatal periods decreases depression-like and anxiety-like behaviors. The present study evaluated the effect of FO supplementation on Obx-induced depressive-like behavior and cognitive impairment. Female rats received supplementation with FO during habituation, mating, gestation, and lactation, and their pups were subjected to Obx in adulthood; after the recovery period, the adult offspring were subjected to behavioral tests, and the hippocampal levels of brain-derived neurotrophic factor (BDNF), serotonin (5-HT) and the metabolite 5-hydroxyindoleacetic (5-HIAA) were determined. Obx led to increased anxiety-like and depressive-like behaviors, and impairment in the object location task. All behavioral changes were reversed by FO supplementation. Obx caused reductions in the levels of hippocampal BDNF and 5-HT, whereas FO supplementation restored these levels to normal values. In control rats, FO increased the hippocampal level of 5-HT and reduced that of 5-HIAA, indicating low 5-HT metabolism in this brain region. The present results indicate that FO supplementation during critical periods of brain development attenuated anxiety-like and depressive-like behaviors and cognitive dysfunction induced by Obx. These results may be explained by increased levels of hippocampal BDNF and 5-HT, two major regulators of neuronal survival and long-term plasticity in this brain structure.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1111/ejn.12406 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Gestational stress disrupts dopamine and oxytocin signaling in the postpartum reward system of rats: implications for mood, motivation and mothering.
Sci Rep
January 2025
Neuroscience Graduate Program, The Ohio State University, Columbus, OH, 43210, USA.
Postpartum depression (PPD) affects up to 20% of new mothers and has adverse consequences for the well-being of both mother and child. Exposure to stress during pregnancy as well as dysregulation in the mesolimbic dopamine (DA) reward system and its upstream modulator oxytocin (OT) have been independently linked to PPD. However, no studies have directly examined DA or OT signaling in the postpartum brain after gestational stress.
View Article and Find Full Text PDFASPIRIN-TRIGGERED LIPOXIN A4 REDUCES NEUROPATHIC PAIN AND ANXIETY-LIKE BEHAVIOURS IN MALE DIABETIC RATS: ANTINOCICEPTIVE ENHANCEMENT BY CANNABINOID RECEPTOR AGONISTS.
Eur J Pharmacol
January 2025
Laboratory of Pharmacology of Pain, Department of Pharmacology, Federal University of Paraná, Curitiba, PR, Brazil.
Neuropathy is the most common complication of diabetes, leading to painful symptoms like hyperalgesia. Current treatments for diabetic painful neuropathy often prove inadequate, necessitating the exploration of new pharmacological approaches. Therefore, this study aimed to investigate the potential antinociceptive effect of aspirin-triggered lipoxin A4 (ATL), a specialized pro-resolving lipid mediator, when administered alone or in combination with cannabinoid agonists, to alleviate diabetic neuropathic pain.
View Article and Find Full Text PDFCannabinoid type-1 receptors in CaMKII neurons drive impulsivity in pathological eating behavior.
Mol Metab
January 2025
Leibniz Institute for Resilience Research, 55122 Mainz Germany; Institute of Physiological Chemistry, University Medical Center of the Johannes Gutenberg University, 55128 Mainz Germany. Electronic address:
Overconsumption of palatable food and energy accumulation are evolutionary mechanisms of survival when food is scarce. This innate mechanism becomes detrimental in obesogenic environment promoting obesity and related comorbidities, including mood disorders. The endocannabinoid system favors energy accumulation and regulates reward circuits.
View Article and Find Full Text PDFAn Updated Bio-Behavioral Profile of the Flinders Sensitive Line Rat: Reviewing the Findings of the Past Decade.
Pharmacol Res Perspect
February 2025
Faculty of Health Sciences, Centre of Excellence for Pharmaceutical Sciences, North-West University, Potchefstroom, South Africa.
The Flinders sensitive line (FSL) rat is an accepted rodent model for depression that presents with strong face, construct, and predictive validity, thereby making it suitable to investigate novel antidepressant mechanisms. Despite the translatability of this model, available literature on this model has not been reviewed for more than ten years. The PubMed, ScienceDirect and Web of Science databases were searched for relevant articles between 2013 and 2024, with keywords relating to the Flinders line rat, and all findings relevant to treatment naïve animals, included.
View Article and Find Full Text PDFChronic Sleep Deprivation Causes Anxiety, Depression and Impaired Gut Barrier in Female Mice-Correlation Analysis from Fecal Microbiome and Metabolome.
Biomedicines
November 2024
Guangzhou Key Laboratory of Forensic Multi-Omics for Precision Identification, School of Forensic Medicine, Southern Medical University, Guangzhou 510515, China.
Background: Chronic sleep deprivation (CSD) plays an important role in mood disorders. However, the changes in the gut microbiota and metabolites associated with CSD-induced anxiety/depression-like behavior in female mice have not been determined. Due to the influence of endogenous hormone levels, females are more susceptible than males to negative emotions caused by sleep deprivation.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!