Metabolic dysfunction-associated steatotic liver disease (MASLD) is an independent risk factor for cardiovascular disease (CVD). While gut bacteria have been linked to CVD, the role of intestinal fungi in subclinical coronary atherosclerosis (SCA) remains unclear. In this study, we aimed to investigate the association between the gut mycobiome and SCA in MASLD.
Methods
A cross-sectional study was conducted among 103 MASLD patients without established CVD. Fibrosis and steatosis were assessed using magnetic resonance elastography (MRE) and proton density fat fraction, respectively. SCA was defined by coronary artery calcification (CAC). Fecal fungal composition was analyzed via internal transcribed spacer sequencing.
Results
Mean age was 60.8 ± 11.2 years; 51.5% were men; 20.4% had cirrhosis. CAC correlated with MRE (r = 0.489, p < 0.001), interleukin-6 (r = 0.407, p < 0.001), and tumor necrosis factor-α (r = 0.254, p = 0.018), but not proton density fat fraction. Cirrhosis patients had higher CAC than F0–F3 (456.9 vs. 205.9, p = 0.033). Candida albicans (C. albicans) abundance was greater in cirrhosis and correlated with CAC (r = 0.403, p < 0.001) and MRE (r = 0.212, p = 0.032). In multivariate analysis, older age, diabetes, obesity, cirrhosis, and enriched C. albicans independently predicted CAC ≥ 100 AU in MASLD.
Conclusions
Our findings highlight the importance of evaluating SCA in patients with MASLD and advanced liver disease, even without overt clinical symptoms of CVD. Indeed, this is the first report of gut fungal dysbiosis associated with the severity of MASLD and SCA. Specifically, an increased abundance of fecal C. albicans was observed in patients with cirrhosis and high SCA burden. These data emphasize the essential role of specific fungi in the pathogenesis of both MASLD and CVD, which may offer promising avenues for developing novel, non-invasive diagnostic and prognostic biomarkers. Moreover, further investigations are needed to determine whether integrating gut mycobiome data into clinical practice could facilitate personalized prevention and potential new therapeutic strategies for these critical cardiometabolic disorders.
Full text
https://www.xiahepublishing.com/2310-8819/JCTH-2025-00507
The study was recently published in the Journal of Clinical and Translational Hepatology .
The Journal of Clinical and Translational Hepatology (JCTH) is owned by the Second Affiliated Hospital of Chongqing Medical University and published by XIA & HE Publishing Inc. JCTH publishes high quality, peer reviewed studies in the translational and clinical human health sciences of liver diseases. JCTH has established high standards for publication of original research, which are characterized by a study's novelty, quality, and ethical conduct in the scientific process as well as in the communication of the research findings. Each issue includes articles by leading authorities on topics in hepatology that are germane to the most current challenges in the field. Special features include reports on the latest advances in drug development and technology that are relevant to liver diseases. Regular features of JCTH also include editorials, correspondences and invited commentaries on rapidly progressing areas in hepatology. All articles published by JCTH, both solicited and unsolicited, must pass our rigorous peer review process.
