Cited by 133Curcumin's Biomedical ApplicationsAlzheimer's disease research and treatmentsMedicinal Plants and Neuroprotection

Effect of curcumin on brain insulin receptors and memory functions in STZ (ICV) induced dementia model of rat

Agrawal, Rahul, Mishra, Bhanvi, Tyagi, Ethika, Nath, Chandishwar, Shukla, Rakesh·2010·Pharmacological Research

Abstract

Curcumin, the principal curcuminoid of turmeric, exhibits beneficial role in several neurodegenerative disorders such as dementia of Alzheimer type. Recent evidences suggest the involvement of brain insulin receptors (IRs) in the pathophysiology of dementia disorders. Therefore, the present study was undertaken to investigate the effect of curcumin on memory functions, brain IRs, acetylcholinesterase (AChE) activity and oxidative stress in intracerebroventricular (ICV) administered streptozotocin (STZ) induced dementia in rats. Rats were injected with STZ (3 mg/kg, ICV) bilaterally twice, on day 1 and 3 and curcumin (200 mg/kg, po) was administered in pre- and post-treatment schedules. STZ (ICV) treated group had shown memory deficit as indicated by no significant decrease in latency time in Morris water maze test and significant decrease in IR protein level in both hippocampus and cerebral cortex. Pre- and post-treatment of curcumin in STZ (ICV) treated rats significantly restored the memory deficit and IR protein level in both the regions. Furthermore, STZ (ICV) resulted into enhanced AChE activity in hippocampus and cerebral cortex which was normalized by curcumin pre- and post-treatment. An increase in MDA level and decrease in GSH level were obtained in both hippocampus and cerebral cortex in STZ treated group, indicating state of oxidative stress, which was also attenuated by pre- and post-treatment of curcumin. The results suggest that besides the anticholinesterase and antioxidant activity, effect on brain IR may also be an important factor for protective effect of curcumin against STZ induced dementia model.

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Crossref · 10.1016/j.phrs.2009.12.008

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  • Curcumin improves memory and cognitive deficits in rats.

    “Furthermore, curcumin has been found to improve memory and cognitive deficits in rats [57].”

    From Nanoemulsions for “Nose-to-Brain” Drug Delivery (2019) · cites this paper as [57]

  • Curcumin treatment restored learning and memory functions in the streptozotocin model of Alzheimer's disease by reducing oxidative stress, enhancing ChAT activity and restoring insulin receptor protein.

    “Another experimental study showed that curcumin treatment restored learning and memory functions in the STZ model of AD by reducing the oxidative stress, enhancing ChAT activity and restoring insulin receptor protein [117,118].”

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Authors
Agrawal, R., Mishra, B., Tyagi, E., Nath, C., & Shukla, R.
Affiliations
Central Drug Research Institute (IN)
Corresponding author
Shukla, Rakesh
Venue
Pharmacological Research
Publisher
Elsevier BV
Published
2010-03
Volume
61
Issue
3
Pages
247-252
ISSN
1043-6618 (ISSN-L)
OpenAlex
W2065632662
Cited by
133
References
38
Citations by year
2026: 5 · 2025: 6 · 2024: 3 · 2023: 7 · 2022: 7 · 2021: 15 · 2020: 11 · 2019: 9 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 9 · 2014: 11 · 2013: 10 · 2012: 11
FWCI
3.84
Type
journal article
Language
en
Open access
closed
Locations
  • Pharmacological Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Medicine › Curcumin's Biomedical Applications
  • Health Sciences › Medicine › Physiology › Alzheimer's disease research and treatments
  • Health Sciences › Medicine › Complementary and alternative medicine › Medicinal Plants and Neuroprotection
Keywords
curcumin, Alzheimer's disease model, memory impairment, acetylcholinesterase activity, oxidative stress, lipid peroxidation, glutathione, hippocampus, cerebral cortex, neuroprotection
MeSH terms
Animals, Brain, Curcumin, Dementia, Disease Models, Animal, Male, Memory, Memory Disorders, Receptor, Insulin, Streptozocin, Rats, Sprague-Dawley, Rats

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