Investigation into the role of hypothalamic SIRT1 in regulating energy metabolism.
| Project/Area Number |
20790637
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Metabolomics
|
|---|
| Research Institution | Gunma University |
|---|
Principal Investigator |
SASAKI Tsutomu Gunma University, 生体調節研究所, 助教 (50466687)
|
|---|
| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2008: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
|
|---|
| Keywords | SIRT1 / 視床下部 / 食欲 / Sirt1 / 糖尿病 / 脳・神経 / 生理学 / 嘉現制御 |
|---|
| Research Abstract |
Sirt1 links the energy availability status with cellular metabolism in peripheral organs. Insulin and leptin signaling regulate food intake in the arcuate nucleus of the hypothalamus. Sirt1 has been reported to improve insulin sensitivity in vitro, but the role of hypothalamic Sirt1 in regulating feeding has not been addressed. We found that hypothalamic Sirt1 protein level and stability is regulated by food intake. Forced expression of wild-type Sirt1 in the mediobasal hypothalamus suppressed hyperphagia and weight gain by suppressing the expression of the orexigenic neuropeptide AgRP.
|
Report
(3 results)
Research Products
(8 results)
