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Memory and cognition enhancing effects of combination of Melissa officinalis and Panax ginseng.
Pakistan Journal of Pharmaceutical Sciences 2023 September
Melissa officinalis and Panax ginseng extracts were investigated to determine combinatorial effects on cognitive behaviors' of albino-rats. The study was prospective-experimental; lasted from June-2022 to March-2023. Learning and memory measurements were done by animal-models. Data analyzed by 22nd version of SPSS. In Passive-avoidance-test both doses of Melissa officinalis and Panax ginseng (100/100mg/kg and 200/200mg/kg) showed significant differences in number of acquisition-trial between groups (p<0.001); drug treated groups showed longer latency-period compared to control and scopolamine (p<0.001). In time-spent-in-dark-chamber treated groups spent less-time in dark-chamber as compared to control and scopolamine (p<0.001). In Morris-water-maze-task treatment groups (100/100mg/kg and 200/200mg/kg) showed significant (p<0.001) decrease in escape-latency compared with control and scopolamine. Spatial-memory-probe showed significant interaction between drugs and days (p<0.001); time-spent in platform region is significantly increased (p<0.001) in both treatment groups compared with control and scopolamine. 8-arm-radial-maze-test showed the significant increase (p<0.05) in total number of correct responses in treatment groups (100/100mg/kg and 200/200mg/kg) compared to control and scopolamine. In-vitro studies revealed acetyl-choline-esterase inhibition by 36.40% from Melissa officinalis and Panax ginseng combination. Study concluded that combination of M. officinalis and P. ginseng extracts may significantly improve the effects on memory and cognition.
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