| Project/Area Number |
26430103
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Laboratory animal science
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| Research Institution | National Cardiovascular Center Research Institute |
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Principal Investigator |
Zheng Can 国立研究開発法人国立循環器病研究センター, 研究所, 特任研究員 (50443495)
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| Co-Investigator(Kenkyū-buntansha) |
李 梅花 国立研究開発法人国立循環器病研究センター, 研究所, 特任研究員 (60443496)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
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| Keywords | Chronic heart failure / Drinking behavior / Thirst / Fluid restriction / Survival / 心不全 / 飲水行動 / 渇き / 血行動態 / 生存率 |
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| Outline of Final Research Achievements |
Given the lack of knowledge about fluid intake regulation and its consequences in patients with chronic heart failure (CHF), current guidelines do not provide clear direction for fluid management. This study aim to investigate altering drinking behaviors and explored fluid management strategies in a rat model of CHF. We observed that the spontaneous per drinking volume (PDV) was significantly increased in rats with myocardial infarction (MI). There was a significant inverse correlation between the PDV at the second-week post-MI and the post-MI lifespan. Modulating the drinking behavior of rats with MI to involve frequent drinking of small PDVs significantly prevented cardiac remodeling, with a significant improved prognosis. These results suggest that increment of PDV may be a prognostic vicious factor after MI, and increasing the drinking frequency, with small PDVs, may be beneficial for preventing progression of cardiac dysfunction in CHF.
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