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Updated: Oct 16, 2025

Author Spotlight: Innovating Thiol Quantification and Biomarker Detection for Oxidative Stress Research
Published on: June 28, 2024
Exploring the potential role of phase angle as a marker of oxidative stress: A narrative review
Bruna Ramos da Silva1, Maria Cristina Gonzalez2, Emanuele Cereda3
1Department of Health Sciences, Division of Nutrition and Metabolism, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil; Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, Canada.
Abstract:
Chronic conditions including non-communicable diseases have become increasingly prevalent in the past decade. Proinflammatory cytokines are associated with the development of several pathologies, their prognoses, and their associated mortality. Chronic inflammation is also associated with oxidative stress whereby reactive oxygen species (ROS) induce cellular injury and, thus, by doing so, initiate inflammatory signaling. Phase angle (PhA) is a measurable body composition parameter obtained using bioelectrical impedance analysis (BIA). PhA is considered an indicator of cellular health and integrity and is also related to inflammatory markers and inflammation. Given the association among oxidative stress, cell damage, and inflammation that may in turn be associated with low PhA values, it is expected that PhA could mirror oxidative stress. In this hypothesis-generating, narrative review we summarize the current knowledge regarding the potential relationship between PhA and oxidative stress and their interrelationship in chronic conditions.
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