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Previous studies have revealed the microbial metabolism of dietary choline in the gut, leading to its conversion into trimethylamine (TMA). Polymethoxyflavones (PMFs), exemplified by tangeretin, have shown efficacy in mitigating choline-induced cardiovascular inflammation. However, the specific mechanism by which these compounds exert their effects, particularly in modulating the gut microbiota, remains uncertain. This investigation focused on tangeretin, a representative PMFs, to explore its influence on the gut microbiota and the choline-TMA conversion process. Experimental results showed that tangeretin treatment significantly attenuated the population of CutC-active bacteria, particularly and , induced by choline chloride in rat models. This inhibition led to a decreased efficiency in choline conversion to TMA, thereby ameliorating cardiovascular inflammation resulting from prolonged choline consumption. In conclusion, tangeretin's preventive effect against cardiovascular inflammation is intricately linked to its targeted modulation of TMA-producing bacterial activity.
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http://dx.doi.org/10.3390/molecules29061323 | DOI Listing |
ESC Heart Fail
September 2025
Department of Clinical and Molecular Medicine, Sapienza University, Rome, Italy.
Heart failure (HF) is a multifactorial and pathophysiological complex syndrome, involving not only neurohormonal activation but also oxidative stress, chronic low-grade inflammation, and metabolic derangements. Central to the cellular defence against oxidative damage is nuclear factor erythroid 2-related factor 2 (Nrf2), a transcription factor that orchestrates antioxidant and cytoprotective responses. Preclinical in vitro and in vivo studies reveal that Nrf2 signalling is consistently impaired in HF, contributing to the progression of myocardial dysfunction.
View Article and Find Full Text PDFCurr Opin Lipidol
August 2025
Cardiometabolic Immunity Laboratory, Department of Physiology, Monash Biomedicine Discovery Institute (BDI) and Victorian Heart Institute (VHI), Monash University, Melbourne, Victoria, Australia.
Purpose Of Review: This review explores the evolving understanding of efferocytosis - the clearance of dead or dying cells by phagocytes - in the context of atherosclerosis. It highlights recent discovers in cell death modalities, impaired clearance mechanisms and emerging therapeutic strategies aimed at restoring efferocytosis to stabilize plaques and resolve inflammation.
Recent Findings: Recent studies have expanded the scope of efferocytosis beyond apoptotic cells to include other pro-inflammatory cell death modes, including pyroptosis, necroptosis and ferroptosis, revealing context-dependent clearance efficiency and immunological outcomes.
J Agric Food Chem
September 2025
College of Basic Medical Sciences, Shanxi Medical University, Taiyuan, Shanxi 030000, China.
Atherosclerosis (AS) is increasingly recognized as a disease influenced not only by lipid metabolism and inflammation but also by the gut microbiota and their bioactive metabolites. Isoquercitrin (ISO), a natural flavonoid with food-medicine homology, has shown promising antiatherosclerotic potential, yet its underlying mechanisms remain unclear. In this study, ISO administration significantly reduced plaque burden, improved lipid profiles, and restored gut microbial balance by enriching beneficial taxa, such as , , and .
View Article and Find Full Text PDFCompr Physiol
October 2025
School of Pharmacy and Medical Sciences, Griffith University, Southport, Queensland, Australia.
Mechanisms underlying cardiovascular, affective, and metabolic (CAM) multimorbidity are incompletely defined. We assessed how two risk factors-chronic stress (CS) and a Western diet (WD)-interact to influence cardiovascular function, resilience, adaptability, and allostatic load (AL); explore pathway involvement; and examine relationships with behavioral, metabolic, and systemic AL. Male C57Bl/6 mice (8 weeks old, n = 64) consumed a control (CD) or WD (12%-65%-23% or 32%-57%-11% calories from fat-carbohydrate-protein) for 17 weeks, with half subjected to 2 h daily restraint stress over the final 2 weeks (CD + CS and WD + CS).
View Article and Find Full Text PDFCurr Hypertens Rev
September 2025
Centro Médico Nacional "La Raza", Instituto Mexicano del Seguro Social, Mexico City, Mexico.
Introduction: Epidemiological evidence suggests that people with hemophilia (PWH) have a higher prevalence of comorbidities compared to the general population. However, the incidence and risk of comorbidities, particularly hypertension, among Mexican PWH remain underexplored.
Methods: We conducted a retrospective cross-sectional study on adult PWH at a major hemophilia treatment center in Mexico.