| Budget Amount *help |
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2018: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
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| Outline of Final Research Achievements |
Lymphatic flow was thought to be absent in the brain, but it has recently been shown that glial cells, especially aquaporin 4 (AQP4), may play a role. Here we succeeded in visualizing the water dynamics of brain tissue by observing the water molecules themselves using a nonlinear optical microscope that we originally developed.
Abnormal lymphatic excretion in the brain leads to abnormal accumulation of amyloid β (Aβ), and its involvement with Alzheimer's disease is suspected. By crossing an Alzheimer's disease mouse model with an AQP4-deficient mouse, we found that the mice showed marked abnormal behavior at an early stage. These results are expected to lead to the development of new early diagnosis and treatment methods for Alzheimer's disease.
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