Gut Dysbiosis as a Shared Mechanism in Obesity and Hypertension: Exploring a Promising Therapeutic Avenue

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Abstract
Background: Obesity and hypertension are interrelated global health challenges sharing common pathophysiological mechanisms, including insulin resistance, chronic inflammation and neurohormonal dysregulation. Emerging evidence highlights the gut microbiome as a crucial mediator in this interplay, influencing intestinal barrier integrity, systemic inflammation and metabolic homeostasis. Methods: In this narrative review, we critically examine the interplay between obesity‐induced hypertension and the gut microbiome, evaluating current evidence, therapeutic implications and future research priorities. Results: Obesity‐associated gut dysbiosis disrupts the intestinal epithelial barrier, increasing translocation of bacterial products like lipopolysaccharides into circulation, promoting systemic inflammation that exacerbates insulin resistance, adipose dysfunction and hypertension. Current treatments targeting obesity, from lifestyle modification to bariatric surgery, show beneficial effects on blood pressure, but microbiome‐targeted interventions are an evolving therapeutic frontier. Prebiotics, probiotics, synbiotics and faecal microbiota transplantation have demonstrated potential antihypertensive effects in preclinical and clinical studies, although findings are heterogeneous and require confirmation in larger randomised trials. Methodological challenges remain, including the need for advanced microbial sampling techniques beyond faecal analysis to fully capture disease‐relevant microbiota alterations. Conclusion: This review synthesises current knowledge on gut microbiome involvement in obesity‐induced hypertension, evaluates microbiome‐based therapeutic strategies and identifies critical research gaps to guide future investigations aimed at mitigating the dual pandemics of obesity and hypertension.

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