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Article Publish Status: FREE
Abstract Title:

Neuroprotective and Memory-Enhancing Effect of the Combined Extract of Purple Waxy Corn Cob and Pandan in Ovariectomized Rats.

Abstract Source:

Oxid Med Cell Longev. 2017 ;2017:5187102. Epub 2017 Jul 9. PMID: 28770022

Abstract Author(s):

Woranan Kirisattayakul, Jintanaporn Wattanathorn, Sittichai Iamsaard, Jinatta Jittiwat, Bhalang Suriharn, Kamol Lertrat

Article Affiliation:

Woranan Kirisattayakul

Abstract:

The neuroprotectant and memory enhancer supplement for menopause is required due to the side effects of hormone replacement therapy. Since purple waxy corn cob and pandan leaves exert antioxidant and acetylcholinesterase inhibition (AChEI) effects, we hypothesized that the combined extract of both plants (PCP) might provide synergistic effect leading to the improved brain damage and memory impairment in experimental menopause. To test this hypothesis, female Wistar rats were ovariectomized bilaterally and orally given various doses of the functional drink at doses of 20, 40, and 80 mg/kg for 28 days. The animals were assessed nonspatial memory using object recognition test every 7 days throughout the study period. At the end of study, they were assessed with oxidative stress status, AChEI, neuron density, and ERK1/2 signal in the prefrontal cortex (PFC). Interestingly, alldoses of PCP increased object recognition memory and neuron density but decreased oxidative stress status in PFC. Low dose of PCP also decreased AChE activity while medium dose of PCP increased phosphorylation of ERK1/2 in PFC. Therefore, the improved oxidative stress status and cholinergic functiontogether with signal transduction via ERK in PFC might be responsible for the neuroprotective and memory-enhancing effects of PCP.

Study Type : Animal Study

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