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Lutein attenuates alcohol-induced memory loss in vivo.

This randomized, controlled, in vivo study evaluated the effect of 50 mg/kg/d of lutein supplementation during 14 days, on ethanol-induced memory deficits in the object recognition task in adult Wistar rats.

Rats were exposed to ethanol (3 g/kg/d), during 7 days, after 8 days of lutein supplementation.

Ethanol administration induced a memory deficit and increased acetylcholinesterase activity, however, it did not alter the parameters of oxidative stress, evaluated in the cortex and hippocampus. Oral administration of lutein attenuated memory deficit (Figure) and the increase of acetylcholinesterase activity induced by ethanol.

ethanol-induced memory deficits

Effect of administration of lutein (50 mg/kg), ethanol (3g/kg), and the co-administration of ethanol and lutein on the discrimination index in the object recognition task. Data are mean ± SEM, for n = 10-11 animals in each group. * Indicates a significant difference (p < 0.05) compared to the control group (Olive oil/Saline).

These results provide evidence that lutein is an alternative treatment for ethanol-induced memory deficit, and suggest the involvement of cholinergic system.

Geiss JMT, Sagae S, Paz EDR, de Freitas ML, Souto NS4, Furian AF, Oliveira MS3, Guerra GP. Oral administration of lutein attenuates ethanol-induced memory deficit in rats by restoration of cholinergic function. Physiol Behav. 2019 Feb 14. pii: S0031-9384(18)31017-5.