The Neuroprotection of Liraglutide on Alzheimer-Like Learning and Memory Impairment by Modulating the Hyperphosphorylation of Tau and Neurofilament Proteins and Insulin Signaling Pathways in Mice

2013 ◽  
Vol 37 (3) ◽  
pp. 623-635 ◽  
Author(s):  
Hui Xiong ◽  
Chen Zheng ◽  
Jingjing Wang ◽  
Jinzhi Song ◽  
Gang Zhao ◽  
...  
Keyword(s):  
Signaling Pathways ◽  
Learning And Memory ◽  
Insulin Signaling ◽  
Memory Impairment ◽  
Neurofilament Proteins

Lanthanum chloride induces autophagy in rat hippocampus through ROS-mediated JNK and AKT/mTOR signaling pathways

Metallomics ◽  
2019 ◽  
Vol 11 (2) ◽  
pp. 439-453 ◽  
Author(s):  
Xiang Gao ◽  
Jinghua Yang ◽  
Yingqi Li ◽  
Miao Yu ◽  
Shiyu Liu ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Signaling Pathways ◽  
Learning And Memory ◽  
Memory Impairment ◽  
Mtor Signaling ◽  
Lanthanum Chloride ◽  
Rat Hippocampus ◽  
Central Nervous System Damage

Lanthanum (La) can cause central nervous system damage in rats and lead to learning and memory impairment, but the relevant mechanisms have not been fully elucidated.

Possibility of distinct insulin-signaling pathways beyond phosphatidylinositol 3-kinase-mediating glucose transport and lipogenesis

Diabetes ◽  
1998 ◽  
Vol 47 (2) ◽  
pp. 179-185 ◽  
Author(s):  
R. W. Stevenson ◽  
D. K. Kreutter ◽  
K. M. Andrews ◽  
P. E. Genereux ◽  
E. M. Gibbs
Keyword(s):  
Signaling Pathways ◽  
Glucose Transport ◽  
Insulin Signaling ◽  
Phosphatidylinositol 3 Kinase ◽  
Phosphatidylinositol 3

scholarly journals Ferroptosis contributes to isoflurane-induced neurotoxicity and learning and memory impairment

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Pengfei Liu ◽  
Jing Yuan ◽  
Yetong Feng ◽  
Xin Chen ◽  
Guangsuo Wang ◽  
...  
Keyword(s):  
Cell Death ◽  
Learning And Memory ◽  
Memory Impairment ◽  
Close Association ◽  
Dimethyl Fumarate ◽  
Dependent Manner ◽  
Transport Chain ◽  
The Relationship

AbstractFerroptosis is a novel type of programmed cell death, which is different from apoptosis and autophagic cell death. Recently, ferroptosis has been indicated to contribute to the in vitro neurotoxicity induced by isoflurane, which is one of the most common anesthetics in clinic. However, the in vivo position of ferroptosis in isoflurane-induced neurotoxicity as well as learning and memory impairment remains unclear. In this study, we mainly explored the relationship between ferroptosis and isoflurane-induced learning and memory, as well as the therapeutic methods in mouse model. Our results indicated that isoflurane induced the ferroptosis in a dose-dependent and time-dependent manner in hippocampus, the organ related with learning and memory ability. In addition, the activity of cytochrome c oxidase/Complex IV in mitochondrial electron transport chain (ETC) was increased by isoflurane, which might further contributed to cysteine deprivation-induced ferroptosis caused by isoflurane exposure. More importantly, isoflurane-induced ferroptosis could be rescued by both ferroptosis inhibitor (ferrostatin-1) and mitochondria activator (dimethyl fumarate), which also showed effective therapeutic action against isoflurane-induced learning and memory impairment. Taken together, our data indicate the close association among ferroptosis, mitochondria and isoflurane, and provide a novel insight into the therapy mode against isoflurane-induced learning and memory impairment.

Effects of repeated administration of (−)-nicotine on AF64A-induced learning and memory impairment in rats

2002 ◽  
Vol 109 (3) ◽  
pp. 361-375 ◽  
Author(s):  
M. Hiramatsu ◽  
T. Yamatsu ◽  
T. Kameyama ◽  
T. Nabeshima
Keyword(s):  
Learning And Memory ◽  
Memory Impairment ◽  
Repeated Administration

scholarly journals Amelioration of Scopolamine-Induced Learning and Memory Impairment byα-Pinene in C57BL/6 Mice

2017 ◽  
Vol 2017 ◽  
pp. 1-9 ◽  
Author(s):  
Gil-Yong Lee ◽  
Chan Lee ◽  
Gyu Hwan Park ◽  
Jung-Hee Jang
Keyword(s):  
Learning And Memory ◽  
Memory Impairment ◽  
Manganese Superoxide Dismutase ◽  
Molecular Mechanisms ◽  
Neuroprotective Effect ◽  
Memory Loss ◽  
Cholinergic Neurons ◽  
Morris Water Maze Test ◽  
Heme Oxygenase 1 ◽  
Related Factor

Increasing evidence suggests that neurodegenerative disorders such as Alzheimer’s disease (AD) are mediated via disruption of cholinergic neurons and enhanced oxidative stress. Therefore, attention has been focused on searching for antioxidant phytochemicals for the prevention and/or treatment of AD through their ability to fortify cholinergic function and antioxidant defense capacity. In this study, we have investigated the neuroprotective effect ofα-pinene (APN) against learning and memory impairment induced by scopolamine (SCO, 1 mg/kg, i.p.), a muscarinic receptor antagonist in C57BL/6 mice. Administration of APN (10 mg/kg, i.p.) significantly improved SCO-induced cognitive dysfunction as assessed by Y-maze and passive avoidance tests. In Morris water-maze test, APN effectively shortened the mean escape latency to find the hidden platform during training days. To further elucidate the molecular mechanisms underlying the neuroprotective effect of APN, the expression of proteins involved in the acetylcholine metabolism and antioxidant system was examined. Particularly, APN treatment increased mRNA expression of choline acetyltransferase in the cortex and protein levels of antioxidant enzymes such as heme oxygenase-1 and manganese superoxide dismutase in the hippocampus via activation of NF-E2-related factor 2. These findings suggest the possible neuroprotective potentials of APN for the management of dementia with learning and memory loss.

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