scholarly journals Antroquinonol Lowers Brain Amyloid-β Levels and Improves Spatial Learning and Memory in a Transgenic Mouse Model of Alzheimer’s Disease

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Wen-Han Chang ◽  
Miles C. Chen ◽  
Irene H. Cheng
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Learning And Memory ◽  
Transgenic Mouse ◽  
Spatial Learning ◽  
Amyloid Β ◽  
Transgenic Mouse Model ◽  
Spatial Learning And Memory ◽  
Model Of Alzheimer’S Disease

Neuroprotective Role of Diosgenin, A NGF Stimulator, Against Aβ (1–42) Induced Neurotoxicity in Animal Model of Alzheimer’s Disease

2021 ◽  
Author(s):  
Swati Som ◽  
Justin Antony ◽  
Palanisamy Dhanabal ◽  
Ponnusankar Sivasankaran
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Learning And Memory ◽  
Spatial Learning ◽  
Molecular Mechanisms ◽  
Protective Action ◽  
Amyloid Β ◽  
Spatial Learning And Memory ◽  
Avoidance Task ◽  
Model Of Alzheimer’S Disease

Abstract Diosgenin is a neurosteroid derived from the plants and has been previously reported for its numerous health beneficial properties, such as anti-arrhythmic, hypolipidemic, and antiproliferative effects. Although several studies conducted earlier suggested cognition enhancement actions of diosgenin against neurodegenerative disorders, but the molecular mechanisms underlying are not clearly understood. In the present study, we investigated the neuroprotective effect of diosgenin in the wistar rats that received an intracerebroventricular injection of Amyloid-β (1–42) peptides, representing a rodent model of Alzheimer’s disease (AD). Animals were treated with 100 and 200 mg/kg/p.o of diosgenin for 28 days, followed by Amyloid-β (1–42) peptides infusion. Animals were assessed for the spatial learning and memory by using radial arm maze and passive avoidance task. Subsequently, animals were euthanized and brains were collected for biochemical estimations and histopathological studies. Our results revealed that, diosgenin administration dose dependently improved the spatial learning and memory and protected the animals from Amyloid-β (1–42) peptides induced disrupted cognitive functions. Further, biochemical analysis showed that diosgenin successfully attenuated Amyloid-β (1–42) mediated plaque load, oxidative stress, neuroinflammation and elevated acetylcholinesterase activity. In addition, histopathological evaluation also supported neuroprotective effects of diosgenin in hippocampus of rat brain when assessed using hematoxylin-eosin and Cresyl Violet staining. Thus, the aforementioned effects suggested protective action of diosgenin against Aβ (1–42) induced neuronal damage and thereby can serve as a potential therapeutic candidate for AD.

P1-229: Effects of zinc plus cyclo(his-pro) on pathology, learning and memory in a transgenic mouse model of Alzheimer's disease

2009 ◽  
Vol 5 (4S_Part_8) ◽  
pp. P243-P243 ◽  
Author(s):  
Stephen A. O'Barr ◽  
Moon K. Song ◽  
Kriscelle H. Mendoza ◽  
Khanh N. Nguyen ◽  
Delilah D. Shahidzadeh ◽  
...  
Keyword(s):  
Alzheimer’S Disease ◽  
Alzheimer's Disease ◽  
Mouse Model ◽  
Learning And Memory ◽  
Transgenic Mouse ◽  
Transgenic Mouse Model ◽  
Model Of Alzheimer’S Disease
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