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2021 Fiscal Year Final Research Report

Uremic toxin and the development of heart failure

Research Project

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Project/Area Number 19K08558
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53020:Cardiology-related
Research InstitutionOkayama University

Principal Investigator

Ito Hiroshi  岡山大学, 医歯薬学域, 教授 (90446047)

Co-Investigator(Kenkyū-buntansha) 中村 一文  岡山大学, 医歯薬学域, 准教授 (10335630)
赤木 達  岡山大学, 医歯薬学域, 助教 (60601127)
三好 亨  岡山大学, 大学病院, 講師 (70444651)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywords心不全 / 心腎連関 / インドキシル硫酸
Outline of Final Research Achievements

The number of patients with heart failure is increasing with aging population in Japan. Cardio-renal interaction plays an important role in the pathophysiology of heart failure. Recent studies showed that chronic kidney disease (CKD) is associate with an increased risk of cardiovascular events. However, mechanisms underlying between CKD and cardiovascular events remains unclear. In this study, indoxyl sulfate, an uremic toxin, was measured in patients with heart failure and its association with prognosis was evaluated in a multicenter cohort. Indoxyl sulfate levels in patients with heart failure were significantly associated with the incidence of cardiovascular events including cardiovascular death, stroke, acute myocardial infarction in patients with heart failure. These results suggest that indoxyl sulfate could be a therapeutic target in patients with heart failure and CKD.

Free Research Field

心不全

Academic Significance and Societal Importance of the Research Achievements

本研究では、心不全患者の予後にインドキシル硫酸が関係することが明らかとなった。高齢化に伴い心不全患者は増加の一途をたどっており、その予後は収縮障害・拡張障害ともに不良である。心不全の薬物治療としては、レニンアンジオテンシン系阻害薬、β遮断薬などがあるが、心不全による死亡率は以前高く、新規治療法の開発が望まれている。本研究はインドキシル硫酸を軸とした新規心不全治療戦略の開発につながる可能性がある。また、心筋での尿毒素の分子動態の解明は、その作用点における創薬につながる可能性がある。

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Published: 2023-01-30  

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