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Thursday, December 8, 2016
Category : News, INGREDIENTS, INNOVATION, CLINICAL EVIDENCE | Author : experts
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NOL, Nutraveris Online, the most efficient data solution to create, keep up-to-date and launch your products in the 28 EU member states, used for 10years by more than 500 industry leaders informs you:

In this study was evaluated the effect of pre-treatment with the hydro-alcoholic extract of Portulaca oleracea (POL) on memory retrieval investigated in lipopolysaccharide (LPS) treated rats.

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Male Wistar rats (200-220g) received either a control diet or a diet containing of POL (400mg/kg, p.o.) for 14 days. Then, they received injections of either saline or LPS (1mg/kg, i.p.). In all the experimental groups, 4h following the last injection, passive avoidance learning (PAL) and memory test was performed. The retention test was done 24h after the training and then the animals were sacrificed. Hippocampal TNF-α levels measured using ELISA as one criteria of LPS-induced neuroinflammation.

The results indicated that LPS significantly impaired PAL and memory and increased TNF-α levels in hippocampus tissue. Pre-treatment with POL improved memory in control rats and prevented memory and TNF-α deterioration in LPS treated rats.

Taken together, the results of this study suggest that the hydro-alcoholic extract of POL may improve memory deficits in LPS treated rats, possibly via inhibition of TNF-α and anti-inflammatory activity.

 

Noorbakhshnia M, Karimi-Zandi L. Portulaca oleracea L. prevents lipopolysaccharide-induced passive avoidance learning and memory and TNF-α impairments in hippocampus of rat. Physiol Behav. 2016 Nov 23. pii: S0031-9384(16)30688-6.

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