2021
Myo-Inositol Levels in the Dorsal Hippocampus Serve as Glial Prognostic Marker of Mild Cognitive Impairment in Mice
EBERT, Tim; Daniel E. HEINZ; Suellen ALMEIDA-CORREA; Renata CRUZ; Frederik DETHLOFF et al.Základní údaje
Originální název
Myo-Inositol Levels in the Dorsal Hippocampus Serve as Glial Prognostic Marker of Mild Cognitive Impairment in Mice
Autoři
EBERT, Tim; Daniel E. HEINZ; Suellen ALMEIDA-CORREA; Renata CRUZ; Frederik DETHLOFF; Tibor ŠTARK; Thomas BAJAJ; Oriana M. MAUREL; Fabiola M. RIBEIRO; Silvio CALCAGNINI; Kathrin HAFNER; Nils C. GASSEN; Christoph W. TURCK; Benoit BOULAT; Michael CZISCH a Carsten T. WOTJAK
Vydání
frontiers in aging neuroscience, LAUSANNE, FRONTIERS MEDIA SA, 2021, 1663-4365
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30104 Pharmacology and pharmacy
Stát vydavatele
Švýcarsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.702
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14110/21:00122834
Organizační jednotka
Lékařská fakulta
UT WoS
EID Scopus
Klíčová slova anglicky
spatial memory; biomarker; MRS; MCI; gliaastrocytes; microgliamyo-inositol
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 2. 2022 08:39, Mgr. Tereza Miškechová
Anotace
V originále
Dementia is a devastating age-related disorder. Its therapy would largely benefit from the identification of susceptible subjects at early, prodromal stages of the disease. To search for such prognostic markers of cognitive impairment, we studied spatial navigation in male BALBc vs. B6N mice in combination with in vivo magnetic resonance spectroscopy (H-1-MRS). BALBc mice consistently showed higher escape latencies than B6N mice, both in the Water Cross Maze (WCM) and the Morris water maze (MWM). These performance deficits coincided with higher levels of myo-inositol (mIns) in the dorsal hippocampus before and after training. Subsequent biochemical analyses of hippocampal specimens by capillary immunodetection and liquid chromatography mass spectrometry-based (LC/MS) metabolomics revealed a higher abundance of glial markers (IBA-1, S100B, and GFAP) as well as distinct alterations in metabolites including a decrease in vitamins (pantothenic acid and nicotinamide), neurotransmitters (acetylcholine), their metabolites (glutamine), and acetyl-L-carnitine. Supplementation of low abundant acetyl-L-carnitine via the drinking water, however, failed to revert the behavioral deficits shown by BALBc mice. Based on our data we suggest (i) BALBc mice as an animal model and (ii) hippocampal mIns levels as a prognostic marker of mild cognitive impairment (MCI), due to (iii) local changes in microglia and astrocyte activity, which may (iv) result in decreased concentrations of promnesic molecules.
Návaznosti
| MUNI/A/1249/2020, interní kód MU |
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