Hepatoprotective Effect of Quinic Acid Against Ethanol-Induced Liver Toxicity in Rats: Biochemical, Physiological, and Histological Insights

Gurusamy Muthukaruppiah

Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, Cuddalore, Tamil Nadu, India.

Nadanam Saravanan *

Department of Biochemistry, Government Medical College and Hospital, Cuddalore, Annamalainagar, Tamil Nadu, India.

*Author to whom correspondence should be addressed.


Abstract

Alcohol consumption is associated with several health issues, including Alcoholic Liver Disease (ALD). Quinic acid, a cyclic polyol compound, is known for its antioxidant, anticancer, anti-inflammatory, and hepatoprotective properties. This study aims to elucidate the protective mechanisms of quinic acid against ethanol-induced liver toxicity in rats. Male rats (n=32) were divided into four groups (n=8 per group) and treated over 60 days. Group 1 received a standard diet with isocaloric glucose; Group 2 was treated with 30% ethanol daily; Group 3 received 30% ethanol and quinic acid (50 mg/kg) from day 31; Group 4 was given glucose and quinic acid from day 31. Biochemical, physiological, and histological evaluations were performed post-treatment. Ethanol-treated rats exhibited significant decreases in body weight, abnormal liver morphology, increased liver enzyme levels (AST, ALT, ALP, and GGT), disrupted lipid and renal profiles, and altered phase I and II enzyme activities. Quinic acid supplementation in ethanol-treated rats significantly reversed these changes by improving body weight, restoring liver morphology, normalizing liver enzyme activities, and maintaining lipid-lipoprotein balance and enzyme levels. Histopathological analysis demonstrated reduced liver damage in quinic acid-treated groups. Quinic acid exhibits hepatoprotective effects against ethanol-induced toxicity by reducing oxidative stress, normalizing liver functions, and preserving liver structure. These findings highlight its potential as a therapeutic agent for managing ALD.

Keywords: Antioxidants, detoxification enzymes, ethanol, hepatoprotective effects, liver marker enzymes, quinic acid


How to Cite

Muthukaruppiah, Gurusamy, and Nadanam Saravanan. 2025. “Hepatoprotective Effect of Quinic Acid Against Ethanol-Induced Liver Toxicity in Rats: Biochemical, Physiological, and Histological Insights”. UTTAR PRADESH JOURNAL OF ZOOLOGY 46 (3):118-33. https://doi.org/10.56557/upjoz/2025/v46i34791.

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