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Neuroprotective effects of Bacopa monnieri in experimental model of dementia

Neetu Saini1, Devinder Singh, Rajat Sandhir

  • 1Department of Biochemistry, Panjab University, Chandigarh 160014, India.

Neurochemical Research
|June 16, 2012
PubMed

Insights

Bacopa monnieri (BM) effectively reversed memory deficits and reduced oxidative stress in a rat model of Alzheimer disease (AD). This traditional Indian herb shows promise for treating AD-related cognitive decline.

Area of Science:

  • Neuroscience
  • Pharmacology
  • Oxidative Stress Research

Background:

  • Alzheimer disease (AD) involves progressive dementia, starting with memory loss and leading to severe cognitive and executive dysfunction.
  • Oxidative stress, characterized by increased lipid peroxidation and protein carbonyls, plays a significant role in AD pathogenesis.
  • Colchicine-induced dementia in rats serves as a model to study AD-like cognitive impairments and test potential therapeutic interventions.

Purpose of the Study:

  • To evaluate the neuroprotective effects of Bacopa monnieri (BM) in a colchicine-induced dementia rat model.
  • To investigate BM's impact on oxidative stress markers and antioxidant enzyme activity in the brain.
  • To assess BM's influence on the activity of key membrane-bound enzymes, including Na(+)K(+) ATPase and acetylcholinesterase (AChE).

Main Methods:

  • Cognitive impairment was induced in rats via intracerebroventricular administration of colchicine.
  • Neuroprotective potential was assessed using the elevated plus maze test.
  • Biochemical analyses measured lipid peroxidation, protein carbonyls, antioxidant enzyme activities, and Na(+)K(+) ATPase and AChE levels.

Main Results:

  • Colchicine administration significantly impaired memory and increased oxidative stress markers (lipid peroxidation, protein carbonyls).
  • Bacopa monnieri (50 mg/kg) supplementation reversed memory impairment in colchicine-treated rats.
  • BM attenuated oxidative damage, restored antioxidant enzyme activities, and normalized Na(+)K(+) ATPase and AChE levels.

Conclusions:

  • Bacopa monnieri demonstrates significant neuroprotective potential against cognitive decline induced by colchicine.
  • BM effectively mitigates oxidative stress and restores key enzyme activities in the brain, suggesting therapeutic value for Alzheimer disease.
  • These findings support the traditional use of Bacopa monnieri for cognitive enhancement and its potential in managing Alzheimer disease symptoms.

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