2023 Fiscal Year Final Research Report
Role of renal LPL metabolism in chronic kidney disease
Project/Area Number |
21K16187
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 53040:Nephrology-related
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Research Institution | Shiga University of Medical Science |
Principal Investigator |
Sasaki Yuki 滋賀医科大学, 医学部, 特任助教 (10897466)
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Project Period (FY) |
2021-04-01 – 2024-03-31
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Keywords | 慢性腎臓病 / 中性脂肪 / 脂質異常症 |
Outline of Final Research Achievements |
Lipoprotein lipase (LPL) is an enzyme crucial for lipid metabolism, facilitating the transport of fatty acids into cells, and its decreased activity leads to hypertriglyceridemia. In this study, we analyzed the association between systemic or renal-specific LPL deficiency and abnormalities in systemic and renal triglyceride metabolism, and chronic kidney disease (CKD) using mouse models. The results showed that systemic LPL deficiency induced hypertriglyceridemia but did not affect renal physiological functions or kidney disease. Additionally, mice with renal-specific LPL deficiency exhibited similar outcomes to systemic LPL-deficient mice. These findings suggest that lipid abnormalities due to decreased LPL activity may not directly contribute to the development of CKD.
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Free Research Field |
腎臓内科
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Academic Significance and Societal Importance of the Research Achievements |
脂質代謝異常の中には高LDL血症と高トリグリセライド血症がある。前者は動脈硬化の強いリスクであるとともに、その上昇が各種慢性腎臓病のリスクとなることも知られており、スタチン等を用いた脂質管理の重要性は腎臓病診療において確立した概念となっている。一方で、高トリグリセライド血症の意義は未だ不明であった。今回の我々の検討から得られた、インスリン抵抗性で生じるリポ蛋白リパーゼ(LPL)活性低下が腎臓の機能ならびに慢性腎臓病の発症進展には寄与しないという結果は、臨床的に高トリグリセライド血症の是正が慢性腎臓病の予後改善に繋がらないというこれまでの臨床的知見の裏付けとなる。
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