Abstract
Background
An altered lipid profile may lead to the development of inflammation and NAFLD (Non-alcoholic fatty liver disease). Although statins have a positive effect on blood lipid levels their long-term use is known to cause adverse effects, in this backdrop there is an interest in natural compounds which may affect lipid metabolism and prevent NAFLD. We have examined the effect of Chitosan on rats subjected to a high-fat diet.
Methods and results
Male Wistar middle aged rats (12–16 months) were treated with high-fat diet orally for two months for creating a NAFLD model. Rats were also supplemented with Chitosan (2% chitosan daily) for 2 months. We assessed the activity of antioxidant enzymes, the histopathological profile of the liver. Inflammatory cytokines and adiponectin levels were also measured in serum. HFD induced significant changes in liver tissue and inflammatory markers (Il-6, TNF- alpha, NF-KB). Chitosan treatment protected rats from HFD induced alterations.
Conclusions
The findings suggest that Chitosan can effectively improve liver lipid metabolism by normalizing cholesterol, triglyceride, lowering NF-KB expression, and protecting the liver from oxidative stress by improving hepatic function. Chitosan also regulates genes related to lipidemic stress i,e leptin and adiponectin.



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Funding
The Department of Biotechnology, Government of India, has provided financial support under the ‘Research Resources, Service Facilities, and Platforms’ program. The Department of Biochemistry is funded by the DST, FIST Grant, New Delhi, and the SAP DRS I from UGC.
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RK Performing experiments, compiling results, a draft of the manuscript. JKA Performing experiments. SIR Conception of the study, analysis of results, and manuscript preparation.
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The study was carried out by the guideline given by the U.S. Public Health Service Policy on Humane Care and Use of Laboratory Animals (PHS Policy) and the National Institutes of Health Guide for the Care and Use of Laboratory Animals (NIH Guide) as well as protocol approval approved by the Ethical Committee of the University of Allahabad, Allahabad.
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Kumar, R., Arya, J.K. & Rizvi, S.I. Chitosan reduces inflammation and protects against oxidative stress in a hyperlipidemic rat model: relevance to nonalcoholic fatty liver disease. Mol Biol Rep 49, 9465–9472 (2022). https://doi.org/10.1007/s11033-022-07810-6
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DOI: https://doi.org/10.1007/s11033-022-07810-6


