Introduction: Alzheimer’s disease (AD) is an age-related neurodegenerative disease, which
impairs memory and cognitive function. Walnuts are a dietary source of polyphenols, antioxidants
and other compounds with health beneficial effects. These characteristic of walnuts make
them perfect candidates for evaluation of their possible effects on neurodegenerative diseases.
Therefore the present study was designed to investigate the effects of walnuts consumption (2%,
6% and 9% walnut diets) on memory enhancement and acetylcholinesterase (AChE) activity of
brain in scopolamine-induced amnesic rats.
Methods: Learning, memory and locomotor activity parameters were evaluated using Morris
water maze (MWM), passive avoidance and rotarod tests.
Results: Our results showed that consumption of walnuts at doses of 6% and 9% significantly
restored the scopolamine-induced memory impairments in the MWM and passive avoidance
tests. Moreover, the potential of walnuts to prevent scopolamine neurotoxicity was also reflected
by the decreased AChE activity in the whole brain in comparison with the scopolamine group.
Discussion: These results suggest that walnuts may be useful against memory impairment and
it may exert these anti-amnesic activities via inhibition of AChE activity in the brain. It would
be worthwhile to explore the potential of this nut and its active components in the management
of the AD.
نوع مطالعه:
Original |
موضوع مقاله:
Cognitive Neuroscience دریافت: 1393/5/18 | پذیرش: 1393/10/20 | انتشار: 1394/1/12