Počet záznamů: 1

Therapeutic lithium alters polar head-group region of lipid bilayer and prevents lipid peroxidation in forebrain cortex of sleep-deprived rats

SYSNO ASEP	0543857
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	Therapeutic lithium alters polar head-group region of lipid bilayer and prevents lipid peroxidation in forebrain cortex of sleep-deprived rats
Tvůrce(i)	Vošahlíková, Miroslava (FGU-C)_{RID, ORCID, SAI} Roubalová, Lenka (FGU-C)_{RID, ORCID, SAI} Brejchová, Jana (FGU-C)_{RID, ORCID} Alda, M. (CZ) Svoboda, Petr (FGU-C)_{RID, ORCID}
Číslo článku	158962
Zdroj.dok.	Biochimica Et Biophysica Acta-Molecular and Cell Biology of Lipids. - : Elsevier - ISSN 1388-1981 Roč. 1866, č. 9 (2021)
Poč.str.	7 s.
Jazyk dok.	eng - angličtina
Země vyd.	NL - Nizozemsko
Klíč. slova	lithium ; rat forebrain cortex ; lipid bilayer ; membrane fluidity ; lipid peroxidation
Vědní obor RIV	ED - Fyziologie
Obor OECD	Physiology (including cytology)
CEP	GA17-07070S GA ČR - Grantová agentura ČR
Způsob publikování	Omezený přístup
Institucionální podpora	FGU-C - RVO:67985823
UT WOS	000665526800001
EID SCOPUS	85107019194
DOI	10.1016/j.bbalip.2021.158962
Anotace	Lithium is regarded as a unique therapeutic agent for the management of bipolar disorder (BD). In efforts to explain the favourable effects of lithium in BD, a wide range of mechanisms was suggested. Among those, the effect of clinically relevant concentrations of lithium on the plasma membrane was extensively studied. However, the biophysical properties of brain membranes isolated from experimental animals exposed to acute, short-term and chronic lithium have not been performed to-date. In this study, we compared the biophysical parameters and level of lipid peroxidation in membranes isolated from forebrain cortex (FBC) of therapeutic lithium-treated and/ or sleep-deprived rats. Lithium interaction with FBC membranes was characterized by appropriate fluorescent probes. DPH (1,6-diphenyl-1,3,5-hexatriene) and TMA-DPH (1-(4-trimethylammoniumphenyl)-6-phenyl-1,3,5-hexatriene p-toluenesulphonate) were used for characterization of the hydrophobic lipid core and Laurdan (6-dodecanoyl-2-dimethylaminonaphthalene) for the membrane-water interface. Lipid peroxidation was determined by immunoblot analysis of 4-HNE-(4-hydroxynonenal)-protein adducts. The organization of polar headgroup region of FBC membranes, measured by Laurdan generalized polarization, was substantially altered by sleep deprivation and augmented by lithium treatment. Hydrophobic membrane interior characterized by steady-state anisotropy of DPH and TMA-DPH fluorescence was unchanged. Chronic lithium had a protective effect against peroxidative damage of membrane lipids in FBC. In summary, lithium administration at a therapeutic level and/or sleep deprivation as an animal model of mania resulted in changes in rat FBC membrane properties.
Pracoviště	Fyziologický ústav
Kontakt	Lucie Trajhanová, lucie.trajhanova@fgu.cas.cz, Tel.: 241 062 400
Rok sběru	2022
Elektronická adresa	https://doi.org/10.1016/j.bbalip.2021.158962

Počet záznamů: 1