ArticleJournal of cellular and molecular medicine2022
Effect of TLR4/MyD88/NF-kB axis in paraventricular nucleus on ventricular arrhythmias induced by sympathetic hyperexcitation in post-myocardial infarction rats.
Article in Journal of cellular and molecular medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 28 citations in OpenAlex.
- Role of Exercise in Modulating the Brain-Heart Axis in Cardiovascular Diseases.International journal of molecular sciences · 2026Review
- The brain-heart axis: effects of cardiovascular disease on the CNS and opportunities for central neuromodulation.Nature reviews. Neuroscience · 2026Review
- PVN-centered multi-omics and single-cell analyses suggest shared inflammatory and immune features in acute myocardial infarction-associated ventricular arrhythmia and atrial fibrillation.Frontiers in cardiovascular medicine · 2026Article
- Neurocardiac Crosstalk: Sympathetic Remodeling and Arrhythmogenesis After Myocardial Infarction.Current issues in molecular biology · 2025Review
- Article
- The new perspective of cardiac exercise rehabilitation: based on integrative physiology.Frontiers in physiology · 2025Review
- Gab1 Overexpression Attenuates Susceptibility to Ventricular Arrhythmias in Pressure Overloaded Heart Failure Mouse Hearts.Cardiovascular drugs and therapy · 2024Article
- Implications for neutrophils in cardiac arrhythmias.American journal of physiology. Heart and circulatory physiology · 2024Review
- Mesenchymal Stem Cell-Derived Exosomes Ameliorate Doxorubicin-Induced Cardiotoxicity.Pharmaceuticals (Basel, Switzerland) · 2024Article
- Suppression of NLRP3 inflammasome orchestrates the protective efficacy of tiron against isoprenaline-induced myocardial injury.Frontiers in pharmacology · 2024Article
- Systems biology-based analysis exploring shared biomarkers and pathogenesis of myocardial infarction combined with osteoarthritis.Frontiers in immunology · 2024Article
- Article
- Inhibition of Mogroside IIIE on isoproterenol-induced myocardial fibrosis through the TLR4/MyD88/NF-κB signaling pathway.Iranian journal of basic medical sciences · 2023Article
- Effect of TLR4/MyD88/NF-kB axis in paraventricular nucleus on ventricular arrhythmias induced by sympathetic hyperexcitation in post-myocardial infarction rats.Journal of cellular and molecular medicine · 2022Article
- lncRNA LOC100911717-targeting GAP43-mediated sympathetic remodeling after myocardial infarction in rats.Frontiers in cardiovascular medicine · 2022Article
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Authors and funding
10 authors at 4 institutions in 1 country.
Funding
Abstract
Sympathetic activation after myocardial infarction (MI) leads to ventricular arrhythmias (VAs), which can result in sudden cardiac death (SCD). The toll-like receptor 4 (TLR4)/myeloid differentiation primary response 88 (MyD88)/nuclear factor-kappa B (NF-kB) axis within the hypothalamic paraventricular nucleus (PVN), a cardiac-neural sympathetic nerve centre, plays an important role in causing VAs. An MI rat model and a PVN-TLR4 knockdown model were constructed. The levels of protein were detected by Western blotting and immunofluorescence, and localizations were visualized by multiple immunofluorescence staining. Central and peripheral sympathetic activation was visualized by immunohistochemistry for c-fos protein, renal sympathetic nerve activity (RSNA) measurement, heart rate variability (HRV) analysis and norepinephrine (NE) level detection in serum and myocardial tissue measured by ELISA. The arrhythmia scores were measured by programmed electrical stimulation (PES), and cardiac function was detected by the pressure-volume loop (P-V loop). The levels of TLR4 and MyD88 and the nuclear translocation of NF-kB within the PVN were increased after MI, while sympathetic activation and arrhythmia scores were increased and cardiac function was decreased. However, inhibition of TLR4 significantly reversed these conditions. PVN-mediated sympathetic activation via the TLR4/MyD88/NF-kB axis ultimately leads to the development of VAs after MI.
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