Full metadata record
DC pole | Hodnota | Jazyk |
---|---|---|
dc.contributor.author | Kacířová, Miroslava | |
dc.contributor.author | Železná, Blanka | |
dc.contributor.author | Blažková, Michaela | |
dc.contributor.author | Holubová, Martina | |
dc.contributor.author | Popelová, Andrea | |
dc.contributor.author | Kuneš, Jaroslav | |
dc.contributor.author | Šedivá, Blanka | |
dc.contributor.author | Maletínská, Lenka | |
dc.date.accessioned | 2021-10-04T10:00:12Z | - |
dc.date.available | 2021-10-04T10:00:12Z | - |
dc.date.issued | 2021 | |
dc.identifier.citation | KACÍŘOVÁ, M. ŽELEZNÁ, B. BLAŽKOVÁ, M. HOLUBOVÁ, M. POPELOVÁ, A. KUNEŠ, J. ŠEDIVÁ, B. MALETÍNSKÁ, L. Aging and high-fat diet feeding lead to peripheral insulin resistance and sexdependent changes in brain of mouse model of tau pathology THY-Tau22. Journal of Neuroinflammation, 2021, roč. 18, č. 1, s. nestránkováno. ISSN: 1742-2094 | cs |
dc.identifier.issn | 1742-2094 | |
dc.identifier.uri | 2-s2.0-85109060255 | |
dc.identifier.uri | http://hdl.handle.net/11025/45430 | |
dc.format | 22 s. | cs |
dc.format.mimetype | application/pdf | |
dc.language.iso | en | en |
dc.publisher | Springer | en |
dc.relation.ispartofseries | Journal of Neuroinflammation | en |
dc.title | Aging and high-fat diet feeding lead to peripheral insulin resistance and sexdependent changes in brain of mouse model of tau pathology THY-Tau22 | en |
dc.type | článek | cs |
dc.type | article | en |
dc.rights.access | openAccess | en |
dc.type.version | publishedVersion | en |
dc.description.abstract-translated | Background Obesity leads to low-grade inflammation in the adipose tissue and liver and neuroinflammation in the brain. Obesity-induced insulin resistance (IR) and neuroinflammation seem to intensify neurodegeneration including Alzheimer's disease. In this study, the impact of high-fat (HF) diet-induced obesity on potential neuroinflammation and peripheral IR was tested separately in males and females of THY-Tau22 mice, a model of tau pathology expressing mutated human tau protein. Methods Three-, 7-, and 11-month-old THY-Tau22 and wild-type males and females were tested for mobility, anxiety-like behavior, and short-term spatial memory in open-field and Y-maze tests. Plasma insulin, free fatty acid, cholesterol, and leptin were evaluated with commercial assays. Liver was stained with hematoxylin and eosin for histology. Brain sections were 3 ',3 '-diaminobenzidine (DAB) and/or fluorescently detected for ionized calcium-binding adapter molecule 1 (Iba1), glial fibrillary acidic protein (GFAP), and tau phosphorylated at T231 (pTau (T231)), and analyzed. Insulin signaling cascade, pTau, extracellular signal-regulated kinase 1/2 (ERK1/2), and protein phosphatase 2A (PP2A) were quantified by western blotting of hippocampi of 11-month-old mice. Data are mean +/- SEM and were subjected to Mann-Whitney t test within age and sex and mixed-effects analysis and Bonferroni's post hoc test for age comparison. Results Increased age most potently decreased mobility and increased anxiety in all mice. THY-Tau22 males showed impaired short-term spatial memory. HF diet increased body, fat, and liver weights and peripheral IR. HF diet-fed THY-Tau22 males showed massive Iba1+ microgliosis and GFAP+ astrocytosis in the hippocampus and amygdala. Activated astrocytes colocalized with pTau (T231) in THY-Tau22, although no significant difference in hippocampal tau phosphorylation was observed between 11-month-old HF and standard diet-fed THY-Tau22 mice. Eleven-month-old THY-Tau22 females, but not males, on both diets showed decreased synaptic and postsynaptic plasticity. Conclusions Significant sex differences in neurodegenerative signs were found in THY-Tau22. Impaired short-term spatial memory was observed in 11-month-old THY-tau22 males but not females, which corresponded to increased neuroinflammation colocalized with pTau(T231) in the hippocampi and amygdalae of THY-Tau22 males. A robust decrease in synaptic and postsynaptic plasticity was observed in 11-month-old females but not males. HF diet caused peripheral but not central IR in mice of both sexes. | en |
dc.subject.translated | Alzheimer's disease | en |
dc.subject.translated | THY-Tau22 mouse | en |
dc.subject.translated | Obesity | en |
dc.subject.translated | Neuroinflammation | en |
dc.subject.translated | Peripheral insulin resistance | en |
dc.subject.translated | Sex differences | en |
dc.identifier.doi | 10.1186/s12974-021-02190-3 | |
dc.type.status | Peer-reviewed | en |
dc.identifier.document-number | 664491200001 | |
dc.identifier.obd | 43933264 | |
Vyskytuje se v kolekcích: | Články / Articles (KMA) OBD |
Soubory připojené k záznamu:
Soubor | Velikost | Formát | |
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s12974-021-02190-3.pdf | 11,14 MB | Adobe PDF | Zobrazit/otevřít |
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http://hdl.handle.net/11025/45430
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