[Effects of curcumin on expression of PI3K and p-pI3K in hippocampus of AD mice].
Zhongguo Zhong Yao Za Zhi
; 38(9): 1295-9, 2013 May.
Article
em Zh
| MEDLINE
| ID: mdl-23944055
ABSTRACT
OBJECTIVE:
To observe the effect of curcumin on the expression of PI3K (phosphatidylinositol-3-kinase, PI3K) and p-P3 K (phosphated phosphatidylinositol-3-kinase, p-PI3K) in the hippocampus of Alzheimer's disease (AD) model (APP/PS1 double transgenic) mice.METHOD:
A total of 60 three-month-old APP/PS1 double transgenic mice were randomly divided into model group, rosiglitazone group(10 mg . kg-1 . d-1) and curcumin large(400 mg . kg-1 . d-1), medium(200 mg- kg-1 . d-1) and small(100 mg . kg-1 . d-1) dose group. Twelve C57BL/6J mice in the same age and genetic background as APP/PS1 double transgenic mice were used as normal control group. All the 6 groups of mice were intragastrically administered for 3 months. After 3 months, the expression of PI3K and p-PI3K were detected by immunohistochemistry and Western blot.RESULT:
The expression of PI3K and p-PI3K positive cells in hippocampus CA1 region significantly decreased in model group compared with normal control group (P < 0. 05) , while compared with model group, PI3K and p-PI3K positive cells of all the curcumin intervention groups increased to varying degrees in hippocampus CA1 region,especially the middle dose group(P <0. 01). Besides,Western blot results of the curcumin high dose group were also increased obviously (P <0. 05).CONCLUSION:
Curcumin can recover the decreased PI3K and p-PI3K and improve the insulin-signaling transmission in the hippocampus of APP/PS1 double transgenic mice. The mechanism of curcumin maybe by regulating the insulin signal transduction to treat AD.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Fosfatidilinositol 3-Quinases
/
Curcumina
/
Doença de Alzheimer
/
Hipocampo
Limite:
Animals
Idioma:
Zh
Ano de publicação:
2013
Tipo de documento:
Article