| Project/Area Number |
25670737
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Ophthalmology
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| Research Institution | Keio University |
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Principal Investigator |
TSUBOTA Kazuo 慶應義塾大学, 医学部, 教授 (40163878)
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| Research Collaborator |
TORII Hidemasa 慶應義塾大学, 医学部, 助教 (50445326)
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| Project Period (FY) |
2013-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | ドライアイ / 涙腺 / 涙液 |
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| Outline of Final Research Achievements |
The db/db mice were the animal model for a rodent model of type 2 diabetes. We investigated the molecular mechanism of tear secretion and metabolic changes.
We used db/db mice and their non-diabetic db/m mice in all experiments. Measurement of tear secretion was performed once a month with a phenol red thread. It was placed on the temporal side of the lower eyelid margin for 30 seconds. After measurement, the mice were sacrificed, lacrimal gland extirpated and lacrimal gland were used all experiments. Serum samples were collected for biochemical analysis. Body weight of db/db mice were significantly increased than db/m mice. In the biochemical analysis of the serum, blood glucoce were significantly higher in the db/db group than in the db/m. At the 3-month time-point of the experiment, tear secretion was decreased by the db/db mice compared to the db/m mice. We concluded those energy metabolism genes are key molecules for tear secretion.
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