Therapeutic potential of protocatechuic acid in in silico evaluation, antioxidant activity, and anti-inflammatory effects for cardiovascular health

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Research Paper 04/05/2026
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Therapeutic potential of protocatechuic acid in in silico evaluation, antioxidant activity, and anti-inflammatory effects for cardiovascular health

Bhavadharseny Uma Shanmugasundaram, Subashini Ragunathan*
Int. J. Biosci. 28(5), 1-10, May 2026.
Copyright Statement: Copyright 2026; The Author(s).
License: CC BY-NC 4.0

Abstract

Protocatechuic acid, a naturally occurring phenolic compound found in a variety of fruits, vegetables, and medicinal plants, has garnered attention for its potential therapeutic properties, particularly in the prevention and management of cardiovascular diseases. This study aimed to evaluate the pharmacokinetic, toxicological, antioxidant, and anti-inflammatory properties of protocatechuic acid. In silico tools, including SwissADME and STopTox, were used to assess the compound’s ADME (absorption, distribution, metabolism, and excretion) and toxicity profiles. Experimental assays were conducted to measure protocatechuic acid’s antioxidant activity, including ferric reducing power, hydrogen peroxide scavenging, metal chelation, and free radical scavenging. Additionally, its anti-inflammatory potential was assessed using a protein denaturation assay. The results revealed that Protocatechuic acid exhibited favourable ADME properties, moderate toxicity, and significant antioxidant and anti-inflammatory activities, with IC₅₀ values comparable to standard compounds such as ascorbic acid and aspirin. These findings suggest that protocatechuic acid holds promise as a natural agent for mitigating oxidative stress and inflammation in cardiovascular disorders, with potential for oral therapeutic applications.

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