Cited by 55Medicinal Plant Extracts EffectsTryptophan and brain disordersTreatment of Major Depression

Protective effect of Convolvulus pluricaulis against neuroinflammation associated depressive behavior induced by chronic unpredictable mild stress in rat

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Gupta, Girdhari Lal, Fernandes, Joneth·2019·Biomedicine & Pharmacotherapy

Abstract

Depression is a heterogeneous disorder and has been regarded as an inflammatory disease. The aerial parts of the Convolvulus pluricaulis are used in Indian traditional medicines for the management of nervous disorders. However, the influence of methanolic extract of aerial parts of Convolvulus pluricaulis (CPE) on a chronic animal model of depression has not been investigated yet, and associated biochemical changes are still unclear. Therefore, this study investigates the effects of CPE on a chronic rat model of depression and explores its underlying mechanism of action on neuroinflammation and brain monoamines. The antidepressant-like effect of CPE (25, 50, and 100 mg/kg, p.o.) was depicted using the sucrose preference test and the forced swimming test (FST) while CUMS-induced alteration in the locomotor index was measured using the open field test (OFT) and actophotometer. A consecutive one-week treatment of CPE (50, and 100 mg/kg) or fluoxetine (10 mg/kg, p.o.) treatment significantly increased sucrose preference index, reduced immobility time in the FST, and increased the number of squares crossed, the number of rearing in the OFT and locomotion in the actophotometer in the CUMS-exposed rats. Moreover, elevated levels of pro-inflammatory cytokines IL-1β, IL-6, TNF-α and liver biomarkers ALT, AST were also significantly reversed by CPE (50, and 100 mg/kg) or fluoxetine administration in the CUMS-exposed rats. Furthermore, a one-week treatment of CPE (50 and 100 mg/kg) or fluoxetine also remarkably restored the serotonin and noradrenaline levels in the hippocampus as well as in the prefrontal cortex of the CUMS-exposed rats. However, CPE (25 mg/kg) exerted insignificant protection against CUMS-induced depressive-like behavior and associated neuroinflammation. Therefore, this study demonstrates that CPE exerted antidepressant-like effect which could be mediated by anti-inflammatory potential, restoring liver biomarkers or monoaminergic responses in the stressed rats.

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  • Convolvulus pluricaulis extract (50, 100 mg/kg) or fluoxetine decreases increased levels of IL-1, IL-6, TNF-, ALT, and AST in CUMS-exposed rats.

    “CPE (50 and 100 mg/kg) or fluoxetine administration significantly decreased the increased levels of pro-inflammatory cytokines IL-1, IL-6, TNF-, and liver biomarkers ALT and AST in the CUMS-exposed rats.”
  • Convolvulus pluricaulis extract has antidepressant-like impact on stressed rats, restoring liver biomarkers or monoaminergic responses, possibly mediated via anti-inflammatory potential.

    “As a result, this study showed that CPE had an antidepressant-like impact on stressed rats, restoring liver biomarkers or monoaminergic responses, which might be mediated via anti-inflammatory potential [141].”
  • In CUMS-exposed rats, fluoxetine or Convolvulus pluricaulis extract (50, 100 mg/kg) over one week increases sucrose preference index, decreases immobility time in FST, and increases squares crossed and locomotion.

    “The study uncovers the effects of CP extract (CPE) on a chronic rat model of depression, and the findings revealed that in the (chronic unpredictable mild stress) CUMS-exposed rats, fluoxetine (10 mg/kg, p.o.) or CPE (50, and 100 mg/kg) treatments given back-to-back over one week markedly increased sucrose preference index, decreased immobility time in the FST, and increased the number of squares”

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Authors
Gupta, G. L., & Fernandes, J.
Affiliations
Narsee Monjee Institute of Management Studies (IN)
Corresponding author
Gupta, Girdhari Lal
Venue
Biomedicine & Pharmacotherapy
Publisher
Elsevier BV
Published
2019-01
Volume
109
Pages
1698-1708
ISSN
0753-3322 (ISSN-L)
OpenAlex
W2901719908
Cited by
55
References
88
Citations by year
2026: 2 · 2025: 4 · 2024: 7 · 2023: 9 · 2022: 13 · 2021: 10 · 2020: 9 · 2019: 1
FWCI
6.88
Type
journal article
Language
en
Open access
Locations
  • Biomedicine & Pharmacotherapy (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Department of Science and Technology, Ministry of Science and Technology, India
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plant Extracts Effects
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
Keywords
Convolvulus pluricaulis, antidepressant effects, neuroinflammation, chronic unpredictable mild stress, depression, methanol extract, inflammatory cytokines, liver biomarkers, monoamines, serotonin, norepinephrine, hippocampus, prefrontal cortex, fluoxetine, traditional medicine
MeSH terms
Animals, Anti-Inflammatory Agents, Antidepressive Agents, Chronic Disease, Depression, Dose-Response Relationship, Drug, Male, Plant Extracts, Stress, Psychological, Rats, Wistar, Neuroprotective Agents, Inflammation Mediators, Convolvulus, Rats

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