PI3K-Akt-Wnt Pathway Is Implicated in Exercise-Induced Improvement of Short-term Memory in Cerebral Palsy Rats / 대한배뇨장애요실금학회지
International Neurourology Journal
; : S156-S164, 2018.
Article
de En
| WPRIM
| ID: wpr-717675
Bibliothèque responsable:
WPRO
ABSTRACT
PURPOSE: Maternal lipopolysaccharide (LPS) injection induces neurodevelopmental disorders, such as cerebral palsy. Exercise activates phosphatidylinositol 3-kinase (PI3K)-protein kinase B (Akt) signaling pathway that enhances neurogenesis. Wnt ligands are also implicated in the hippocampal neurogenesis and synaptic plasticity. Glycogen synthase kinase-3β (GSK-3β) is a downstream molecule of Akt, and GSK-3β is known to modulate hippocampal neurogenesis negatively. METHODS: Cerebral palsy was made by maternal LPS-injection. On the 5 weeks after birth, treadmill running was applied to the rat pups of the exercise groups, for 30 minutes, 5 times a week during 6 weeks. RESULTS: Treadmill running alleviated short-term memory impairments of the cerebral palsy rat pups. Hippocampal cell proliferation was increased and hippocampal apoptosis was suppressed by treadmill running in the cerebral palsy rat pups. Hippocampal phosphorylated-PI3K/PI3K ratio, phosphorylated-Akt/Akt ratio, and Wnt expression were enhanced by treadmill running in the cerebral palsy rat pups. In contrast, hippocampal phosphorylated-GSK-3β/GSK-3β ratio and β-catenin expression were suppressed by treadmill running in the cerebral palsy rat pups. CONCLUSIONS: The results of this study showed that short-term memory improvement due to treadmill running in cerebral palsy occurs via activation of the PI3K-Akt-Wnt pathway.
Mots clés
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Phosphotransferases
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Course à pied
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Paralysie cérébrale
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Glycogen synthase
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Apoptose
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Parturition
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Prolifération cellulaire
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Protéines proto-oncogènes c-akt
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Neurogenèse
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Phosphatidylinositol 3-kinase
Limites du sujet:
Animals
langue:
En
Texte intégral:
International Neurourology Journal
Année:
2018
Type:
Article