Metabolomic profiling analysis reveals chamber-dependent metabolite patterns in the mouse heart

Daisuke Shimura, Gaku Nakai, Qibin Jiao, Kota Osanai, Kasumi Kashikura, Keiko Endo, Tomoyoshi Soga, Nobuhito Goda, Susumu Minamisawa*


研究成果: Article査読

16 被引用数 (Scopus)


Energy of the cardiac muscle largely depends on fatty acid oxidation. It is known that the atrium and ventricle have chamber-specific functions, structures, gene expressions, and pathologies. The left ventricle works as a high-pressure chamber to pump blood toward the body, and its muscle wall is thicker than those of the other chambers, suggesting that energy utilization in each of the chambers should be different. However, a chamber-specific pattern of metabolism remains incompletely understood. Recently, innovative techniques have enabled the comprehensive analysis of metabolites. Therefore, we aimed to clarify differences in metabolic patterns among the chambers. Male C57BL6 mice at 6 wk old were subject to a comprehensive measurement of metabolites in the atria and ventricles by capillary electrophoresis and mass spectrometry. We found that overall metabolic profiles, including nucleotides and amino acids, were similar between the right and left ventricles. On the other hand, the atria exhibited a distinct metabolic pattern from those of the ventricles. Importantly, the highenergy phosphate pool (the total concentration of ATP, ADP, and AMP) was higher in both ventricles. In addition, the levels of lactate, acetyl CoA, and tricarboxylic acid cycle contents were higher in the ventricles. Accordingly, the activities and/or expression levels of key enzymes were higher in the ventricles to produce more energy. The present study provides a basis for understanding the chamber-specific metabolism underlining pathophysiology in the heart.

ジャーナルAmerican Journal of Physiology - Heart and Circulatory Physiology
出版ステータスPublished - 2013 5月 8

ASJC Scopus subject areas

  • 生理学
  • 循環器および心血管医学
  • 生理学(医学)


「Metabolomic profiling analysis reveals chamber-dependent metabolite patterns in the mouse heart」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。