Changes of auditory event-related potentials in ovariectomized rats injected with d-galactose: Protective role of rosmarinic acid

Neurotoxicology
Deniz Kantar-GokPiraye Yargıcoglu

Abstract

Rosmarinic acid (RA), which has multiple bioactive properties, might be a useful agent for protecting central nervous system against age related alterations. In this context, the purpose of the present study was to investigate possible protective effects of RA on mismatch negativity (MMN) component of auditory event-related potentials (AERPs) as an indicator of auditory discrimination and echoic memory in the ovariectomized (OVX) rats injected with d-galactose combined with neurochemical and histological analyses. Ninety female Wistar rats were randomly divided into six groups: sham control (S); RA-treated (R); OVX (O); OVX+RA-treated (OR); OVX+d-galactose-treated (OD); OVX+d-galactose+RA-treated (ODR). Eight weeks later, MMN responses were recorded using the oddball condition. An amplitude reduction of some components of AERPs was observed due to ovariectomy with or without d-galactose administiration and these reduction patterns were diverse for different electrode locations. MMN amplitudes were significantly lower over temporal and right frontal locations in the O and OD groups versus the S and R groups, which was accompanied by increased thiobarbituric acid reactive substances (TBARS) and hydroxy-2-nonenal (4-HNE) levels. R...Continue Reading

Citations

Jul 30, 2020·Naunyn-Schmiedeberg's Archives of Pharmacology·Mahboobeh Ghasemzadeh Rahbardar, Hossein Hosseinzadeh
Mar 22, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Silvia Bittner FialováMiloš Lukáč
Feb 25, 2021·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Soyeon HongChu Won Nho

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