scholarly journals The Ethyl Acetate Extract of Leaves of Ugni molinae Turcz. Improves Neuropathological Hallmarks of Alzheimer’s Disease in Female APPswe/PS1dE9 Mice Fed with a High Fat Diet

2018 ◽  
Vol 66 (3) ◽  
pp. 1175-1191 ◽  
Author(s):  
Daniela Jara-Moreno ◽  
Rubn D. Castro-Torres ◽  
Miren Ettcheto ◽  
Carme Auladell ◽  
Marcelo J. Kogan ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Ethyl Acetate ◽  
High Fat Diet ◽  
Ethyl Acetate Extract ◽  
High Fat ◽  
Ugni Molinae

Sex differences in response to a high fat diet in an Alzheimer’s Disease mouse model

2018 ◽  
Author(s):  
Alejandra Freire Fernández-Regatillo ◽  
María L. de Ceballos ◽  
Jesús Argente ◽  
Sonia Díaz Pacheco ◽  
Clara González Martínez
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Sex Differences ◽  
Mouse Model ◽  
High Fat Diet ◽  
High Fat

Formononetin Ameliorates Cognitive Disorder via PGC-1α Pathway in Neuroinflammation Conditions in High-Fat Diet-Induced Mice

2019 ◽  
Vol 18 (7) ◽  
pp. 566-577 ◽  
Author(s):  
Xinxin Fu ◽  
Tingting Qin ◽  
Jiayu Yu ◽  
Jie Jiao ◽  
Zhanqiang Ma ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
High Fat Diet ◽  
Trifolium Pratense ◽  
Amyloid Β ◽  
Cognitive Disorder ◽  
Mechanism Study ◽  
High Fat ◽  
Neuroprotective Effects ◽  
Underlying Mechanisms

Background: Alzheimer’s disease is one of the most common neurodegenerative diseases in many modern societies. The core pathogenesis of Alzheimer’s disease includes the aggregation of hyperphosphorylated Tau and abnormal Amyloid-β generation. In addition, previous studies have shown that neuroinflammation is one of the pathogenesis of Alzheimer’s disease. Formononetin, an isoflavone compound extracted from Trifolium pratense L., has been found to have various properties including anti-obesity, anti-inflammation, and neuroprotective effects. But there are very few studies on the treatment of Alzheimer’s disease with Formononetin. Objective: The present study focused on the protective activities of Formononetin on a high-fat dietinduced cognitive decline and explored the underlying mechanisms. Methods: Mice were fed with HFD for 10 weeks and intragastric administrated daily with metformin (300 mg/kg) and Formononetin (20 and 40 mg/kg). Results: We found that Formononetin (20, 40 mg/kg) significantly attenuated the learning and memory deficits companied by weight improvement and decreased the levels of blood glucose, total cholesterol and triglyceride in high-fat diet-induced mice. Meanwhile, we observed high-fat diet significantly caused the Tau hyperphosphorylation in the hippocampus of mice, whereas Formononetin reversed this effect. Additionally, Formononetin markedly reduced the levels of inflammation cytokines IL-1β and TNF-α in high-fat diet-induced mice. The mechanism study showed that Formononetin suppressed the pro-inflammatory NF-κB signaling and enhanced the anti-inflammatory Nrf-2/HO-1 signaling, which might be related to the regulation of PGC-1α in the hippocampus of high-fat diet -induced mice. Conclusion: Taken together, our results showed that Formononetin could improve the cognitive function by inhibiting neuroinflammation, which is attributed to the regulation of PGC-1α pathway in HFD-induced mice.

scholarly journals High-Fat Diet Leads to Reduced Protein O-GlcNAcylation and Mitochondrial Defects Promoting the Development of Alzheimer’s Disease Signatures

2021 ◽  
Vol 22 (7) ◽  
pp. 3746
Author(s):  
Ilaria Zuliani ◽  
Chiara Lanzillotta ◽  
Antonella Tramutola ◽  
Eugenio Barone ◽  
Marzia Perluigi ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Insulin Resistance ◽  
Alzheimer's Disease ◽  
High Fat Diet ◽  
Mitochondrial Activity ◽  
High Fat ◽  
Hexosamine Biosynthetic Pathway ◽  
Neurodegenerative Process ◽  
The Brain

The disturbance of protein O-GlcNAcylation is emerging as a possible link between altered brain metabolism and the progression of neurodegeneration. As observed in brains with Alzheimer’s disease (AD), flaws of the cerebral glucose uptake translate into reduced protein O-GlcNAcylation, which promote the formation of pathological hallmarks. A high-fat diet (HFD) is known to foster metabolic dysregulation and insulin resistance in the brain and such effects have been associated with the reduction of cognitive performances. Remarkably, a significant role in HFD-related cognitive decline might be played by aberrant protein O-GlcNAcylation by triggering the development of AD signature and mitochondrial impairment. Our data support the impairment of total protein O-GlcNAcylation profile both in the brain of mice subjected to a 6-week high-fat-diet (HFD) and in our in vitro transposition on SH-SY5Y cells. The reduction of protein O-GlcNAcylation was associated with the development of insulin resistance, induced by overfeeding (i.e., defective insulin signaling and reduced mitochondrial activity), which promoted the dysregulation of the hexosamine biosynthetic pathway (HBP) flux, through the AMPK-driven reduction of GFAT1 activation. Further, we observed that a HFD induced the selective impairment of O-GlcNAcylated-tau and of O-GlcNAcylated-Complex I subunit NDUFB8, thus resulting in tau toxicity and reduced respiratory chain functionality respectively, highlighting the involvement of this posttranslational modification in the neurodegenerative process.

scholarly journals Contributions of a high-fat diet to Alzheimer's disease-related decline: A longitudinal behavioural and structural neuroimaging study in mouse models

2019 ◽  
Vol 21 ◽  
pp. 101606 ◽  
Author(s):  
Colleen P.E. Rollins ◽  
Daniel Gallino ◽  
Vincent Kong ◽  
Gülebru Ayranci ◽  
Gabriel A. Devenyi ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Models ◽  
High Fat Diet ◽  
High Fat ◽  
Structural Neuroimaging ◽  
Neuroimaging Study

P2-394: INSULIN REVERSES THE HIGH FAT DIET-INDUCED INCREASE IN BRAIN Aβ AND IMPROVES MEMORY IN AN ANIMAL MODEL OF ALZHEIMER'S DISEASE

2014 ◽  
Vol 10 ◽  
pp. P623-P623
Author(s):  
Milene Vandal ◽  
White Phillip ◽  
Cyntia Tremblay ◽  
Isabelle St-Amour ◽  
Geneviève Chevrier ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Animal Model ◽  
High Fat Diet ◽  
High Fat ◽  
Model Of Alzheimer’S Disease
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