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Effects of curcumin on expression of PI3K and p-pI3K in hippocampus of AD mice / 中国中药杂志
China Journal of Chinese Materia Medica ; (24): 1295-1299, 2013.
Article in Chinese | WPRIM | ID: wpr-294123
ABSTRACT
<p><b>OBJECTIVE</b>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.</p><p><b>METHOD</b>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.</p><p><b>RESULT</b>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).</p><p><b>CONCLUSION</b>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.</p>
Subject(s)
Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Mice, Transgenic / Phosphatidylinositol 3-Kinases / Curcumin / Thiazolidinediones / Therapeutic Uses / Disease Models, Animal / Drug Therapy / Alzheimer Disease / Genetics Limits: Animals Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2013 Type: Article

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Full text: Available Index: WPRIM (Western Pacific) Main subject: Pharmacology / Mice, Transgenic / Phosphatidylinositol 3-Kinases / Curcumin / Thiazolidinediones / Therapeutic Uses / Disease Models, Animal / Drug Therapy / Alzheimer Disease / Genetics Limits: Animals Language: Chinese Journal: China Journal of Chinese Materia Medica Year: 2013 Type: Article