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Cardiac Hypertrophy - Astrophysics Data System

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Last Updated: 10 January 2023

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METTL14 is required for exercise-induced cardiac hypertrophy and protects against myocardial ischemia-reperfusion injury

RNA m 6 A modification is the most widely distributed RNA methylation modality and is closely related to several pathophysiological pathways. Though regular exercise's heart has been well understood, the role of RNA m 6 A in exercise training and exercise-induced physiological cardiac hypertrophy remains largely unknown. Here, we report that endurance exercise training improves cardiac mRNA levels by 6 A. Mechanistically, silencing METTL14 suppresses Phlpp2 mRNA m6 A mutations and unleashes Akt-S473, which in turn regulates cardiomyocyte growth and apoptosis. According to our results, METTL14 plays a vital role in maintaining cardiac homeostasis.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatCo..13.6762W/abstract


Gut microbiota production of trimethyl-5-aminovaleric acid reduces fatty acid oxidation and accelerates cardiac hypertrophy

In a prospective heart failure cohort, the risk of cardiac death and transplantation was raised with gradually elevated risk of cardiac death and transplantation. TMAVA altered cardiac energy metabolism, leading to decreased FAO and myocardial lipid accumulation, according to Proteomics' findings. Mice with u03b3-butyrobetaine hydroxylase deficiency had a similar cardiac hypertrophy phenotype, indicating that TMAVA does not function through BBOX. These results show that TMAVA, which is generated by gut microbiota, is a primary determinant of cardiac hypertrophy caused by reduced carnitine production and subsequent FAO.

Source link: https://ui.adsabs.harvard.edu/abs/2022NatCo..13.1757Z/abstract


The Role of Apoptosis in Myocyte Death During Cardiac Hypertrophy

The u03b15 integrin subunit is only present during cardiac growth and cardiac hypertrophy conditions, and not in normal adult rat myocytes, according to previous studies. Angiotensin II has been implicated as a source of myocyte apoptosis through the angiotensin II type I receptor. Angiotensin II type 2 receptor receptor, a second Ang II receptor, has yet to be identified. It's unclear if apoptosis plays a role in myocyte cell death during heart failure, but the role of apoptosis in myocyte cell death remains unclear.

Source link: https://ui.adsabs.harvard.edu/abs/2001MiMic...7S.596G/abstract

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions