Cited by 45Medicinal Plants and NeuroprotectionAlzheimer's disease research and treatmentsNatural Antidiabetic Agents Studies

Terpenoid-rich Elettaria cardamomum extract prevents Alzheimer-like alterations induced in diabetic rats via inhibition of GSK3β activity, oxidative stress and pro-inflammatory cytokines

Gomaa, Adel A., Makboul, Rania M., El-Mokhtar, Mohamed A., Abdel-Rahman, Engy A., Ahmed, Israa A., Nicola, Mariam A.·2019·Cytokine

Abstract

Purpose Recent studies suggested that the non-familiar form of Alzheimer's disease (AD) could be consequence of metabolic syndrome and neuroinflammation. Elettaria cardamomum extract (EC) has exhibited antidiabetic, antioxidant and anti-inflammatory properties. This research was conducted to evaluate the effects of EC on AD-like alterations in rats induced by high fructose and high fat diet coupled with a single small dose of STZ (25 mg/kg) (T2DM rats).Methods Phytochemical analysis was carried out. Behavioral tests, immunohistochemical examination, biochemical analysis and gene expression determination were performed in treated and controls rats.Results The majority of EC compounds were terpenoids. EC extract administration for 8 weeks attenuated AD-like alterations. It reversed a T2DM-induced decline in cognitive functions in passive avoidance task and Morris water maze test. It significantly lowered the elevated hippocampal level of AChE activity and caspase-3 activity, an indicator of degeneration in T2DM rats Also, it reduced the accumulation of Aβ and p-tau in the brain of T2DM rats. Furthermore, it elevated the suppressed glutamate receptor expression (AMPA GluR1 subunit and NMDA receptor subunits NR1, NR2A, NR2B). EC treatment reduced hippocampal lipid peroxidation marker malondialdehyde (MDA) and augmented antioxidant defensive system, including superoxide dismutase (SOD) and reduced glutathione (GSH). Meanwhile, it lowered hippocampal TNFα, IL β1but not IL6 and reduced GSK-3β in brainT2D rats.Conclusion EC treatment could ameliorate AD-like alterations in T2DM rats through activation of blunted insulin signal transduction in the brain, attenuation of associated oxidative stress and neuroinflammation.

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Crossref · 10.1016/j.cyto.2018.10.017

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Authors
Gomaa, A. A., Makboul, R. M., El-Mokhtar, M. A., Abdel-Rahman, E. A., Ahmed, I. A., & Nicola, M. A.
Affiliations
Assiut University (EG)
Corresponding author
Gomaa, Adel A.
Venue
Cytokine
Publisher
Elsevier BV
Published
2019-01
Volume
113
Pages
405-416
ISSN
1043-4666 (ISSN-L)
OpenAlex
W2898140444
Cited by
45
References
43
Citations by year
2026: 1 · 2025: 8 · 2024: 8 · 2023: 7 · 2022: 12 · 2021: 6 · 2020: 2 · 2019: 1
FWCI
3.09
Type
journal article
Language
en
Open access
closed
Locations
  • Cytokine (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • The Scientific & The Technology Development Fund
  • Ministry of State for Scientific Research (6897)
Topics
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
Keywords
cardamom, cardamom extract, terpenoids, Alzheimer's disease, type 2 diabetes, streptozotocin-induced diabetes, neuroinflammation, oxidative stress, GSK3β, amyloid-beta, tau phosphorylation, acetylcholinesterase, caspase-3, glutamate receptors, insulin signaling, cognitive impairment, neuroprotection, metabolic syndrome
MeSH terms
Glycogen Synthase Kinase 3 beta, Alzheimer Disease, Animals, Brain, Diabetes Mellitus, Experimental, Inflammation, Male, Plant Extracts, Terpenes, Cytokines, Amyloid beta-Peptides, Rats, Wistar, Oxidative Stress, Elettaria, Rats

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