Increased production of endothelin-1 in the hypertrophied rat heart due to pressure overload

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Abstract

Endothelin-1 (ET-1) has been demonstrated to induce hypertrophy in cultured cardiac myocytes. We investigated the production of ET-1 in the heart of aorta-banded rats in vivo. Seven days after the banding of the abdominal aorta, rats developed a significant left ventricular hypertrophy. The tissue content of mature ET-1 and the level of expression of prepro ET-1 mRNA were higher in the left ventricle of aorta-banded rats than in those of sham-operated rats. The expression of prepro ET-1 mRNA in the right ventricle was not different between the two groups. These findings indicate that the production of ET-1 increased in the hypertrophied left ventricle, thereby suggesting the possible involvement of endogenous ET-1 in the development of cardiac hypertrophy due to pressure overload. © 1993.

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Yorikane, R., Sakai, S., Miyauchi, T., Sakurai, T., Sugishita, Y., & Goto, K. (1993). Increased production of endothelin-1 in the hypertrophied rat heart due to pressure overload. FEBS Letters, 332(1–2), 31–34. https://doi.org/10.1016/0014-5793(93)80476-B

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